1 | /* util.c |
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2 | * |
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3 | * Copyright (c) 1991-2001, Larry Wall |
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4 | * |
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5 | * You may distribute under the terms of either the GNU General Public |
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6 | * License or the Artistic License, as specified in the README file. |
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7 | * |
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8 | */ |
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9 | |
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10 | /* |
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11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was |
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12 | * not content." --Gandalf |
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13 | */ |
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14 | |
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15 | #include "EXTERN.h" |
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16 | #define PERL_IN_UTIL_C |
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17 | #include "perl.h" |
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18 | |
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19 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
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20 | #include <signal.h> |
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21 | #endif |
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22 | |
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23 | #ifndef SIG_ERR |
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24 | # define SIG_ERR ((Sighandler_t) -1) |
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25 | #endif |
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26 | |
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27 | #ifdef I_VFORK |
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28 | # include <vfork.h> |
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29 | #endif |
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30 | |
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31 | /* Put this after #includes because fork and vfork prototypes may |
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32 | conflict. |
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33 | */ |
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34 | #ifndef HAS_VFORK |
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35 | # define vfork fork |
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36 | #endif |
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37 | |
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38 | #ifdef I_SYS_WAIT |
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39 | # include <sys/wait.h> |
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40 | #endif |
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41 | |
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42 | #ifdef I_LOCALE |
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43 | # include <locale.h> |
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44 | #endif |
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45 | |
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46 | #define FLUSH |
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47 | |
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48 | #ifdef LEAKTEST |
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49 | |
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50 | long xcount[MAXXCOUNT]; |
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51 | long lastxcount[MAXXCOUNT]; |
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52 | long xycount[MAXXCOUNT][MAXYCOUNT]; |
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53 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; |
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54 | |
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55 | #endif |
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56 | |
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57 | #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC) |
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58 | # define FD_CLOEXEC 1 /* NeXT needs this */ |
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59 | #endif |
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60 | |
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61 | /* paranoid version of system's malloc() */ |
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62 | |
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63 | /* NOTE: Do not call the next three routines directly. Use the macros |
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64 | * in handy.h, so that we can easily redefine everything to do tracking of |
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65 | * allocated hunks back to the original New to track down any memory leaks. |
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66 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
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67 | */ |
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68 | |
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69 | Malloc_t |
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70 | Perl_safesysmalloc(MEM_SIZE size) |
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71 | { |
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72 | dTHX; |
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73 | Malloc_t ptr; |
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74 | #ifdef HAS_64K_LIMIT |
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75 | if (size > 0xffff) { |
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76 | PerlIO_printf(Perl_error_log, |
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77 | "Allocation too large: %lx\n", size) FLUSH; |
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78 | my_exit(1); |
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79 | } |
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80 | #endif /* HAS_64K_LIMIT */ |
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81 | #ifdef DEBUGGING |
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82 | if ((long)size < 0) |
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83 | Perl_croak_nocontext("panic: malloc"); |
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84 | #endif |
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85 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
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86 | PERL_ALLOC_CHECK(ptr); |
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87 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size)); |
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88 | if (ptr != Nullch) |
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89 | return ptr; |
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90 | else if (PL_nomemok) |
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91 | return Nullch; |
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92 | else { |
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93 | PerlIO_puts(Perl_error_log,PL_no_mem) FLUSH; |
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94 | my_exit(1); |
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95 | return Nullch; |
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96 | } |
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97 | /*NOTREACHED*/ |
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98 | } |
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99 | |
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100 | /* paranoid version of system's realloc() */ |
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101 | |
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102 | Malloc_t |
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103 | Perl_safesysrealloc(Malloc_t where,MEM_SIZE size) |
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104 | { |
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105 | dTHX; |
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106 | Malloc_t ptr; |
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107 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) && !defined(PERL_MICRO) |
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108 | Malloc_t PerlMem_realloc(); |
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109 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
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110 | |
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111 | #ifdef HAS_64K_LIMIT |
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112 | if (size > 0xffff) { |
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113 | PerlIO_printf(Perl_error_log, |
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114 | "Reallocation too large: %lx\n", size) FLUSH; |
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115 | my_exit(1); |
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116 | } |
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117 | #endif /* HAS_64K_LIMIT */ |
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118 | if (!size) { |
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119 | safesysfree(where); |
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120 | return NULL; |
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121 | } |
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122 | |
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123 | if (!where) |
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124 | return safesysmalloc(size); |
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125 | #ifdef DEBUGGING |
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126 | if ((long)size < 0) |
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127 | Perl_croak_nocontext("panic: realloc"); |
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128 | #endif |
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129 | ptr = PerlMem_realloc(where,size); |
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130 | PERL_ALLOC_CHECK(ptr); |
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131 | |
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132 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) rfree\n",PTR2UV(where),(long)PL_an++)); |
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133 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) realloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size)); |
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134 | |
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135 | if (ptr != Nullch) |
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136 | return ptr; |
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137 | else if (PL_nomemok) |
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138 | return Nullch; |
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139 | else { |
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140 | PerlIO_puts(Perl_error_log,PL_no_mem) FLUSH; |
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141 | my_exit(1); |
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142 | return Nullch; |
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143 | } |
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144 | /*NOTREACHED*/ |
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145 | } |
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146 | |
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147 | /* safe version of system's free() */ |
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148 | |
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149 | Free_t |
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150 | Perl_safesysfree(Malloc_t where) |
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151 | { |
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152 | #ifdef PERL_IMPLICIT_SYS |
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153 | dTHX; |
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154 | #endif |
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155 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) free\n",PTR2UV(where),(long)PL_an++)); |
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156 | if (where) { |
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157 | /*SUPPRESS 701*/ |
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158 | PerlMem_free(where); |
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159 | } |
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160 | } |
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161 | |
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162 | /* safe version of system's calloc() */ |
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163 | |
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164 | Malloc_t |
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165 | Perl_safesyscalloc(MEM_SIZE count, MEM_SIZE size) |
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166 | { |
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167 | dTHX; |
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168 | Malloc_t ptr; |
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169 | |
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170 | #ifdef HAS_64K_LIMIT |
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171 | if (size * count > 0xffff) { |
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172 | PerlIO_printf(Perl_error_log, |
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173 | "Allocation too large: %lx\n", size * count) FLUSH; |
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174 | my_exit(1); |
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175 | } |
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176 | #endif /* HAS_64K_LIMIT */ |
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177 | #ifdef DEBUGGING |
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178 | if ((long)size < 0 || (long)count < 0) |
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179 | Perl_croak_nocontext("panic: calloc"); |
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180 | #endif |
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181 | size *= count; |
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182 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
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183 | PERL_ALLOC_CHECK(ptr); |
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184 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) calloc %ld x %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)count,(long)size)); |
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185 | if (ptr != Nullch) { |
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186 | memset((void*)ptr, 0, size); |
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187 | return ptr; |
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188 | } |
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189 | else if (PL_nomemok) |
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190 | return Nullch; |
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191 | else { |
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192 | PerlIO_puts(Perl_error_log,PL_no_mem) FLUSH; |
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193 | my_exit(1); |
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194 | return Nullch; |
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195 | } |
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196 | /*NOTREACHED*/ |
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197 | } |
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198 | |
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199 | #ifdef LEAKTEST |
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200 | |
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201 | struct mem_test_strut { |
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202 | union { |
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203 | long type; |
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204 | char c[2]; |
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205 | } u; |
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206 | long size; |
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207 | }; |
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208 | |
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209 | # define ALIGN sizeof(struct mem_test_strut) |
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210 | |
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211 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) |
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212 | # define typeof_chunk(ch) \ |
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213 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) |
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214 | # define set_typeof_chunk(ch,t) \ |
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215 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) |
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216 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ |
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217 | ? MAXYCOUNT - 1 \ |
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218 | : ( (size) > 40 \ |
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219 | ? ((size) - 1)/8 + 5 \ |
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220 | : ((size) - 1)/4)) |
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221 | |
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222 | Malloc_t |
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223 | Perl_safexmalloc(I32 x, MEM_SIZE size) |
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224 | { |
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225 | register char* where = (char*)safemalloc(size + ALIGN); |
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226 | |
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227 | xcount[x] += size; |
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228 | xycount[x][SIZE_TO_Y(size)]++; |
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229 | set_typeof_chunk(where, x); |
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230 | sizeof_chunk(where) = size; |
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231 | return (Malloc_t)(where + ALIGN); |
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232 | } |
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233 | |
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234 | Malloc_t |
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235 | Perl_safexrealloc(Malloc_t wh, MEM_SIZE size) |
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236 | { |
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237 | char *where = (char*)wh; |
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238 | |
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239 | if (!wh) |
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240 | return safexmalloc(0,size); |
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241 | |
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242 | { |
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243 | MEM_SIZE old = sizeof_chunk(where - ALIGN); |
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244 | int t = typeof_chunk(where - ALIGN); |
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245 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); |
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246 | |
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247 | xycount[t][SIZE_TO_Y(old)]--; |
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248 | xycount[t][SIZE_TO_Y(size)]++; |
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249 | xcount[t] += size - old; |
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250 | sizeof_chunk(new) = size; |
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251 | return (Malloc_t)(new + ALIGN); |
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252 | } |
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253 | } |
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254 | |
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255 | void |
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256 | Perl_safexfree(Malloc_t wh) |
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257 | { |
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258 | I32 x; |
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259 | char *where = (char*)wh; |
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260 | MEM_SIZE size; |
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261 | |
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262 | if (!where) |
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263 | return; |
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264 | where -= ALIGN; |
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265 | size = sizeof_chunk(where); |
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266 | x = where[0] + 100 * where[1]; |
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267 | xcount[x] -= size; |
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268 | xycount[x][SIZE_TO_Y(size)]--; |
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269 | safefree(where); |
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270 | } |
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271 | |
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272 | Malloc_t |
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273 | Perl_safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
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274 | { |
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275 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
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276 | xcount[x] += size; |
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277 | xycount[x][SIZE_TO_Y(size)]++; |
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278 | memset((void*)(where + ALIGN), 0, size * count); |
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279 | set_typeof_chunk(where, x); |
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280 | sizeof_chunk(where) = size; |
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281 | return (Malloc_t)(where + ALIGN); |
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282 | } |
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283 | |
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284 | STATIC void |
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285 | S_xstat(pTHX_ int flag) |
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286 | { |
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287 | register I32 i, j, total = 0; |
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288 | I32 subtot[MAXYCOUNT]; |
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289 | |
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290 | for (j = 0; j < MAXYCOUNT; j++) { |
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291 | subtot[j] = 0; |
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292 | } |
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293 | |
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294 | PerlIO_printf(Perl_debug_log, " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total); |
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295 | for (i = 0; i < MAXXCOUNT; i++) { |
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296 | total += xcount[i]; |
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297 | for (j = 0; j < MAXYCOUNT; j++) { |
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298 | subtot[j] += xycount[i][j]; |
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299 | } |
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300 | if (flag == 0 |
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301 | ? xcount[i] /* Have something */ |
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302 | : (flag == 2 |
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303 | ? xcount[i] != lastxcount[i] /* Changed */ |
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304 | : xcount[i] > lastxcount[i])) { /* Growed */ |
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305 | PerlIO_printf(Perl_debug_log,"%2d %02d %7ld ", i / 100, i % 100, |
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306 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); |
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307 | lastxcount[i] = xcount[i]; |
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308 | for (j = 0; j < MAXYCOUNT; j++) { |
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309 | if ( flag == 0 |
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310 | ? xycount[i][j] /* Have something */ |
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311 | : (flag == 2 |
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312 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ |
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313 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ |
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314 | PerlIO_printf(Perl_debug_log,"%3ld ", |
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315 | flag == 2 |
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316 | ? xycount[i][j] - lastxycount[i][j] |
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317 | : xycount[i][j]); |
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318 | lastxycount[i][j] = xycount[i][j]; |
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319 | } else { |
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320 | PerlIO_printf(Perl_debug_log, " . ", xycount[i][j]); |
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321 | } |
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322 | } |
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323 | PerlIO_printf(Perl_debug_log, "\n"); |
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324 | } |
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325 | } |
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326 | if (flag != 2) { |
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327 | PerlIO_printf(Perl_debug_log, "Total %7ld ", total); |
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328 | for (j = 0; j < MAXYCOUNT; j++) { |
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329 | if (subtot[j]) { |
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330 | PerlIO_printf(Perl_debug_log, "%3ld ", subtot[j]); |
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331 | } else { |
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332 | PerlIO_printf(Perl_debug_log, " . "); |
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333 | } |
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334 | } |
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335 | PerlIO_printf(Perl_debug_log, "\n"); |
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336 | } |
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337 | } |
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338 | |
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339 | #endif /* LEAKTEST */ |
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340 | |
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341 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
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342 | |
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343 | char * |
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344 | Perl_delimcpy(pTHX_ register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
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345 | { |
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346 | register I32 tolen; |
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347 | for (tolen = 0; from < fromend; from++, tolen++) { |
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348 | if (*from == '\\') { |
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349 | if (from[1] == delim) |
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350 | from++; |
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351 | else { |
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352 | if (to < toend) |
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353 | *to++ = *from; |
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354 | tolen++; |
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355 | from++; |
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356 | } |
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357 | } |
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358 | else if (*from == delim) |
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359 | break; |
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360 | if (to < toend) |
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361 | *to++ = *from; |
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362 | } |
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363 | if (to < toend) |
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364 | *to = '\0'; |
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365 | *retlen = tolen; |
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366 | return from; |
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367 | } |
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368 | |
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369 | /* return ptr to little string in big string, NULL if not found */ |
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370 | /* This routine was donated by Corey Satten. */ |
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371 | |
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372 | char * |
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373 | Perl_instr(pTHX_ register const char *big, register const char *little) |
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374 | { |
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375 | register const char *s, *x; |
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376 | register I32 first; |
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377 | |
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378 | if (!little) |
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379 | return (char*)big; |
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380 | first = *little++; |
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381 | if (!first) |
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382 | return (char*)big; |
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383 | while (*big) { |
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384 | if (*big++ != first) |
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385 | continue; |
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386 | for (x=big,s=little; *s; /**/ ) { |
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387 | if (!*x) |
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388 | return Nullch; |
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389 | if (*s++ != *x++) { |
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390 | s--; |
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391 | break; |
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392 | } |
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393 | } |
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394 | if (!*s) |
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395 | return (char*)(big-1); |
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396 | } |
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397 | return Nullch; |
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398 | } |
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399 | |
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400 | /* same as instr but allow embedded nulls */ |
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401 | |
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402 | char * |
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403 | Perl_ninstr(pTHX_ register const char *big, register const char *bigend, const char *little, const char *lend) |
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404 | { |
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405 | register const char *s, *x; |
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406 | register I32 first = *little; |
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407 | register const char *littleend = lend; |
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408 | |
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409 | if (!first && little >= littleend) |
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410 | return (char*)big; |
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411 | if (bigend - big < littleend - little) |
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412 | return Nullch; |
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413 | bigend -= littleend - little++; |
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414 | while (big <= bigend) { |
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415 | if (*big++ != first) |
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416 | continue; |
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417 | for (x=big,s=little; s < littleend; /**/ ) { |
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418 | if (*s++ != *x++) { |
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419 | s--; |
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420 | break; |
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421 | } |
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422 | } |
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423 | if (s >= littleend) |
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424 | return (char*)(big-1); |
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425 | } |
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426 | return Nullch; |
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427 | } |
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428 | |
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429 | /* reverse of the above--find last substring */ |
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430 | |
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431 | char * |
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432 | Perl_rninstr(pTHX_ register const char *big, const char *bigend, const char *little, const char *lend) |
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433 | { |
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434 | register const char *bigbeg; |
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435 | register const char *s, *x; |
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436 | register I32 first = *little; |
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437 | register const char *littleend = lend; |
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438 | |
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439 | if (!first && little >= littleend) |
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440 | return (char*)bigend; |
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441 | bigbeg = big; |
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442 | big = bigend - (littleend - little++); |
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443 | while (big >= bigbeg) { |
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444 | if (*big-- != first) |
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445 | continue; |
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446 | for (x=big+2,s=little; s < littleend; /**/ ) { |
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447 | if (*s++ != *x++) { |
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448 | s--; |
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449 | break; |
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450 | } |
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451 | } |
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452 | if (s >= littleend) |
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453 | return (char*)(big+1); |
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454 | } |
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455 | return Nullch; |
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456 | } |
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457 | |
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458 | /* |
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459 | * Set up for a new ctype locale. |
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460 | */ |
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461 | void |
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462 | Perl_new_ctype(pTHX_ char *newctype) |
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463 | { |
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464 | #ifdef USE_LOCALE_CTYPE |
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465 | |
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466 | int i; |
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467 | |
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468 | for (i = 0; i < 256; i++) { |
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469 | if (isUPPER_LC(i)) |
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470 | PL_fold_locale[i] = toLOWER_LC(i); |
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471 | else if (isLOWER_LC(i)) |
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472 | PL_fold_locale[i] = toUPPER_LC(i); |
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473 | else |
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474 | PL_fold_locale[i] = i; |
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475 | } |
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476 | |
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477 | #endif /* USE_LOCALE_CTYPE */ |
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478 | } |
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479 | |
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480 | /* |
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481 | * Standardize the locale name from a string returned by 'setlocale'. |
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482 | * |
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483 | * The standard return value of setlocale() is either |
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484 | * (1) "xx_YY" if the first argument of setlocale() is not LC_ALL |
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485 | * (2) "xa_YY xb_YY ..." if the first argument of setlocale() is LC_ALL |
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486 | * (the space-separated values represent the various sublocales, |
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487 | * in some unspecificed order) |
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488 | * |
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489 | * In some platforms it has a form like "LC_SOMETHING=Lang_Country.866\n", |
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490 | * which is harmful for further use of the string in setlocale(). |
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491 | * |
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492 | */ |
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493 | STATIC char * |
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494 | S_stdize_locale(pTHX_ char *locs) |
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495 | { |
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496 | char *s; |
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497 | bool okay = TRUE; |
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498 | |
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499 | if ((s = strchr(locs, '='))) { |
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500 | char *t; |
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501 | |
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502 | okay = FALSE; |
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503 | if ((t = strchr(s, '.'))) { |
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504 | char *u; |
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505 | |
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506 | if ((u = strchr(t, '\n'))) { |
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507 | |
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508 | if (u[1] == 0) { |
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509 | STRLEN len = u - s; |
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510 | Move(s + 1, locs, len, char); |
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511 | locs[len] = 0; |
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512 | okay = TRUE; |
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513 | } |
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514 | } |
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515 | } |
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516 | } |
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517 | |
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518 | if (!okay) |
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519 | Perl_croak(aTHX_ "Can't fix broken locale name \"%s\"", locs); |
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520 | |
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521 | return locs; |
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522 | } |
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523 | |
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524 | /* |
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525 | * Set up for a new collation locale. |
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526 | */ |
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527 | void |
---|
528 | Perl_new_collate(pTHX_ char *newcoll) |
---|
529 | { |
---|
530 | #ifdef USE_LOCALE_COLLATE |
---|
531 | |
---|
532 | if (! newcoll) { |
---|
533 | if (PL_collation_name) { |
---|
534 | ++PL_collation_ix; |
---|
535 | Safefree(PL_collation_name); |
---|
536 | PL_collation_name = NULL; |
---|
537 | } |
---|
538 | PL_collation_standard = TRUE; |
---|
539 | PL_collxfrm_base = 0; |
---|
540 | PL_collxfrm_mult = 2; |
---|
541 | return; |
---|
542 | } |
---|
543 | |
---|
544 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { |
---|
545 | ++PL_collation_ix; |
---|
546 | Safefree(PL_collation_name); |
---|
547 | PL_collation_name = stdize_locale(savepv(newcoll)); |
---|
548 | PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
---|
549 | |
---|
550 | { |
---|
551 | /* 2: at most so many chars ('a', 'b'). */ |
---|
552 | /* 50: surely no system expands a char more. */ |
---|
553 | #define XFRMBUFSIZE (2 * 50) |
---|
554 | char xbuf[XFRMBUFSIZE]; |
---|
555 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
---|
556 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); |
---|
557 | SSize_t mult = fb - fa; |
---|
558 | if (mult < 1) |
---|
559 | Perl_croak(aTHX_ "strxfrm() gets absurd"); |
---|
560 | PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
---|
561 | PL_collxfrm_mult = mult; |
---|
562 | } |
---|
563 | } |
---|
564 | |
---|
565 | #endif /* USE_LOCALE_COLLATE */ |
---|
566 | } |
---|
567 | |
---|
568 | void |
---|
569 | Perl_set_numeric_radix(pTHX) |
---|
570 | { |
---|
571 | #ifdef USE_LOCALE_NUMERIC |
---|
572 | # ifdef HAS_LOCALECONV |
---|
573 | struct lconv* lc; |
---|
574 | |
---|
575 | lc = localeconv(); |
---|
576 | if (lc && lc->decimal_point) { |
---|
577 | if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) { |
---|
578 | SvREFCNT_dec(PL_numeric_radix_sv); |
---|
579 | PL_numeric_radix_sv = 0; |
---|
580 | } |
---|
581 | else { |
---|
582 | if (PL_numeric_radix_sv) |
---|
583 | sv_setpv(PL_numeric_radix_sv, lc->decimal_point); |
---|
584 | else |
---|
585 | PL_numeric_radix_sv = newSVpv(lc->decimal_point, 0); |
---|
586 | } |
---|
587 | } |
---|
588 | else |
---|
589 | PL_numeric_radix_sv = 0; |
---|
590 | # endif /* HAS_LOCALECONV */ |
---|
591 | #endif /* USE_LOCALE_NUMERIC */ |
---|
592 | } |
---|
593 | |
---|
594 | /* |
---|
595 | * Set up for a new numeric locale. |
---|
596 | */ |
---|
597 | void |
---|
598 | Perl_new_numeric(pTHX_ char *newnum) |
---|
599 | { |
---|
600 | #ifdef USE_LOCALE_NUMERIC |
---|
601 | |
---|
602 | if (! newnum) { |
---|
603 | if (PL_numeric_name) { |
---|
604 | Safefree(PL_numeric_name); |
---|
605 | PL_numeric_name = NULL; |
---|
606 | } |
---|
607 | PL_numeric_standard = TRUE; |
---|
608 | PL_numeric_local = TRUE; |
---|
609 | return; |
---|
610 | } |
---|
611 | |
---|
612 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { |
---|
613 | Safefree(PL_numeric_name); |
---|
614 | PL_numeric_name = stdize_locale(savepv(newnum)); |
---|
615 | PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
---|
616 | PL_numeric_local = TRUE; |
---|
617 | set_numeric_radix(); |
---|
618 | } |
---|
619 | |
---|
620 | #endif /* USE_LOCALE_NUMERIC */ |
---|
621 | } |
---|
622 | |
---|
623 | void |
---|
624 | Perl_set_numeric_standard(pTHX) |
---|
625 | { |
---|
626 | #ifdef USE_LOCALE_NUMERIC |
---|
627 | |
---|
628 | if (! PL_numeric_standard) { |
---|
629 | setlocale(LC_NUMERIC, "C"); |
---|
630 | PL_numeric_standard = TRUE; |
---|
631 | PL_numeric_local = FALSE; |
---|
632 | set_numeric_radix(); |
---|
633 | } |
---|
634 | |
---|
635 | #endif /* USE_LOCALE_NUMERIC */ |
---|
636 | } |
---|
637 | |
---|
638 | void |
---|
639 | Perl_set_numeric_local(pTHX) |
---|
640 | { |
---|
641 | #ifdef USE_LOCALE_NUMERIC |
---|
642 | |
---|
643 | if (! PL_numeric_local) { |
---|
644 | setlocale(LC_NUMERIC, PL_numeric_name); |
---|
645 | PL_numeric_standard = FALSE; |
---|
646 | PL_numeric_local = TRUE; |
---|
647 | set_numeric_radix(); |
---|
648 | } |
---|
649 | |
---|
650 | #endif /* USE_LOCALE_NUMERIC */ |
---|
651 | } |
---|
652 | |
---|
653 | /* |
---|
654 | * Initialize locale awareness. |
---|
655 | */ |
---|
656 | int |
---|
657 | Perl_init_i18nl10n(pTHX_ int printwarn) |
---|
658 | { |
---|
659 | int ok = 1; |
---|
660 | /* returns |
---|
661 | * 1 = set ok or not applicable, |
---|
662 | * 0 = fallback to C locale, |
---|
663 | * -1 = fallback to C locale failed |
---|
664 | */ |
---|
665 | |
---|
666 | #if defined(USE_LOCALE) |
---|
667 | |
---|
668 | #ifdef USE_LOCALE_CTYPE |
---|
669 | char *curctype = NULL; |
---|
670 | #endif /* USE_LOCALE_CTYPE */ |
---|
671 | #ifdef USE_LOCALE_COLLATE |
---|
672 | char *curcoll = NULL; |
---|
673 | #endif /* USE_LOCALE_COLLATE */ |
---|
674 | #ifdef USE_LOCALE_NUMERIC |
---|
675 | char *curnum = NULL; |
---|
676 | #endif /* USE_LOCALE_NUMERIC */ |
---|
677 | #ifdef __GLIBC__ |
---|
678 | char *language = PerlEnv_getenv("LANGUAGE"); |
---|
679 | #endif |
---|
680 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
---|
681 | char *lang = PerlEnv_getenv("LANG"); |
---|
682 | bool setlocale_failure = FALSE; |
---|
683 | |
---|
684 | #ifdef LOCALE_ENVIRON_REQUIRED |
---|
685 | |
---|
686 | /* |
---|
687 | * Ultrix setlocale(..., "") fails if there are no environment |
---|
688 | * variables from which to get a locale name. |
---|
689 | */ |
---|
690 | |
---|
691 | bool done = FALSE; |
---|
692 | |
---|
693 | #ifdef LC_ALL |
---|
694 | if (lang) { |
---|
695 | if (setlocale(LC_ALL, "")) |
---|
696 | done = TRUE; |
---|
697 | else |
---|
698 | setlocale_failure = TRUE; |
---|
699 | } |
---|
700 | if (!setlocale_failure) { |
---|
701 | #ifdef USE_LOCALE_CTYPE |
---|
702 | if (! (curctype = |
---|
703 | setlocale(LC_CTYPE, |
---|
704 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) |
---|
705 | ? "" : Nullch))) |
---|
706 | setlocale_failure = TRUE; |
---|
707 | else |
---|
708 | curctype = savepv(curctype); |
---|
709 | #endif /* USE_LOCALE_CTYPE */ |
---|
710 | #ifdef USE_LOCALE_COLLATE |
---|
711 | if (! (curcoll = |
---|
712 | setlocale(LC_COLLATE, |
---|
713 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) |
---|
714 | ? "" : Nullch))) |
---|
715 | setlocale_failure = TRUE; |
---|
716 | else |
---|
717 | curcoll = savepv(curcoll); |
---|
718 | #endif /* USE_LOCALE_COLLATE */ |
---|
719 | #ifdef USE_LOCALE_NUMERIC |
---|
720 | if (! (curnum = |
---|
721 | setlocale(LC_NUMERIC, |
---|
722 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) |
---|
723 | ? "" : Nullch))) |
---|
724 | setlocale_failure = TRUE; |
---|
725 | else |
---|
726 | curnum = savepv(curnum); |
---|
727 | #endif /* USE_LOCALE_NUMERIC */ |
---|
728 | } |
---|
729 | |
---|
730 | #endif /* LC_ALL */ |
---|
731 | |
---|
732 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
---|
733 | |
---|
734 | #ifdef LC_ALL |
---|
735 | if (! setlocale(LC_ALL, "")) |
---|
736 | setlocale_failure = TRUE; |
---|
737 | #endif /* LC_ALL */ |
---|
738 | |
---|
739 | if (!setlocale_failure) { |
---|
740 | #ifdef USE_LOCALE_CTYPE |
---|
741 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
---|
742 | setlocale_failure = TRUE; |
---|
743 | else |
---|
744 | curctype = savepv(curctype); |
---|
745 | #endif /* USE_LOCALE_CTYPE */ |
---|
746 | #ifdef USE_LOCALE_COLLATE |
---|
747 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
---|
748 | setlocale_failure = TRUE; |
---|
749 | else |
---|
750 | curcoll = savepv(curcoll); |
---|
751 | #endif /* USE_LOCALE_COLLATE */ |
---|
752 | #ifdef USE_LOCALE_NUMERIC |
---|
753 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
---|
754 | setlocale_failure = TRUE; |
---|
755 | else |
---|
756 | curnum = savepv(curnum); |
---|
757 | #endif /* USE_LOCALE_NUMERIC */ |
---|
758 | } |
---|
759 | |
---|
760 | if (setlocale_failure) { |
---|
761 | char *p; |
---|
762 | bool locwarn = (printwarn > 1 || |
---|
763 | (printwarn && |
---|
764 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p)))); |
---|
765 | |
---|
766 | if (locwarn) { |
---|
767 | #ifdef LC_ALL |
---|
768 | |
---|
769 | PerlIO_printf(Perl_error_log, |
---|
770 | "perl: warning: Setting locale failed.\n"); |
---|
771 | |
---|
772 | #else /* !LC_ALL */ |
---|
773 | |
---|
774 | PerlIO_printf(Perl_error_log, |
---|
775 | "perl: warning: Setting locale failed for the categories:\n\t"); |
---|
776 | #ifdef USE_LOCALE_CTYPE |
---|
777 | if (! curctype) |
---|
778 | PerlIO_printf(Perl_error_log, "LC_CTYPE "); |
---|
779 | #endif /* USE_LOCALE_CTYPE */ |
---|
780 | #ifdef USE_LOCALE_COLLATE |
---|
781 | if (! curcoll) |
---|
782 | PerlIO_printf(Perl_error_log, "LC_COLLATE "); |
---|
783 | #endif /* USE_LOCALE_COLLATE */ |
---|
784 | #ifdef USE_LOCALE_NUMERIC |
---|
785 | if (! curnum) |
---|
786 | PerlIO_printf(Perl_error_log, "LC_NUMERIC "); |
---|
787 | #endif /* USE_LOCALE_NUMERIC */ |
---|
788 | PerlIO_printf(Perl_error_log, "\n"); |
---|
789 | |
---|
790 | #endif /* LC_ALL */ |
---|
791 | |
---|
792 | PerlIO_printf(Perl_error_log, |
---|
793 | "perl: warning: Please check that your locale settings:\n"); |
---|
794 | |
---|
795 | #ifdef __GLIBC__ |
---|
796 | PerlIO_printf(Perl_error_log, |
---|
797 | "\tLANGUAGE = %c%s%c,\n", |
---|
798 | language ? '"' : '(', |
---|
799 | language ? language : "unset", |
---|
800 | language ? '"' : ')'); |
---|
801 | #endif |
---|
802 | |
---|
803 | PerlIO_printf(Perl_error_log, |
---|
804 | "\tLC_ALL = %c%s%c,\n", |
---|
805 | lc_all ? '"' : '(', |
---|
806 | lc_all ? lc_all : "unset", |
---|
807 | lc_all ? '"' : ')'); |
---|
808 | |
---|
809 | #if defined(USE_ENVIRON_ARRAY) |
---|
810 | { |
---|
811 | char **e; |
---|
812 | for (e = environ; *e; e++) { |
---|
813 | if (strnEQ(*e, "LC_", 3) |
---|
814 | && strnNE(*e, "LC_ALL=", 7) |
---|
815 | && (p = strchr(*e, '='))) |
---|
816 | PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n", |
---|
817 | (int)(p - *e), *e, p + 1); |
---|
818 | } |
---|
819 | } |
---|
820 | #else |
---|
821 | PerlIO_printf(Perl_error_log, |
---|
822 | "\t(possibly more locale environment variables)\n"); |
---|
823 | #endif |
---|
824 | |
---|
825 | PerlIO_printf(Perl_error_log, |
---|
826 | "\tLANG = %c%s%c\n", |
---|
827 | lang ? '"' : '(', |
---|
828 | lang ? lang : "unset", |
---|
829 | lang ? '"' : ')'); |
---|
830 | |
---|
831 | PerlIO_printf(Perl_error_log, |
---|
832 | " are supported and installed on your system.\n"); |
---|
833 | } |
---|
834 | |
---|
835 | #ifdef LC_ALL |
---|
836 | |
---|
837 | if (setlocale(LC_ALL, "C")) { |
---|
838 | if (locwarn) |
---|
839 | PerlIO_printf(Perl_error_log, |
---|
840 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
---|
841 | ok = 0; |
---|
842 | } |
---|
843 | else { |
---|
844 | if (locwarn) |
---|
845 | PerlIO_printf(Perl_error_log, |
---|
846 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
---|
847 | ok = -1; |
---|
848 | } |
---|
849 | |
---|
850 | #else /* ! LC_ALL */ |
---|
851 | |
---|
852 | if (0 |
---|
853 | #ifdef USE_LOCALE_CTYPE |
---|
854 | || !(curctype || setlocale(LC_CTYPE, "C")) |
---|
855 | #endif /* USE_LOCALE_CTYPE */ |
---|
856 | #ifdef USE_LOCALE_COLLATE |
---|
857 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
---|
858 | #endif /* USE_LOCALE_COLLATE */ |
---|
859 | #ifdef USE_LOCALE_NUMERIC |
---|
860 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
---|
861 | #endif /* USE_LOCALE_NUMERIC */ |
---|
862 | ) |
---|
863 | { |
---|
864 | if (locwarn) |
---|
865 | PerlIO_printf(Perl_error_log, |
---|
866 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
---|
867 | ok = -1; |
---|
868 | } |
---|
869 | |
---|
870 | #endif /* ! LC_ALL */ |
---|
871 | |
---|
872 | #ifdef USE_LOCALE_CTYPE |
---|
873 | curctype = savepv(setlocale(LC_CTYPE, Nullch)); |
---|
874 | #endif /* USE_LOCALE_CTYPE */ |
---|
875 | #ifdef USE_LOCALE_COLLATE |
---|
876 | curcoll = savepv(setlocale(LC_COLLATE, Nullch)); |
---|
877 | #endif /* USE_LOCALE_COLLATE */ |
---|
878 | #ifdef USE_LOCALE_NUMERIC |
---|
879 | curnum = savepv(setlocale(LC_NUMERIC, Nullch)); |
---|
880 | #endif /* USE_LOCALE_NUMERIC */ |
---|
881 | } |
---|
882 | else { |
---|
883 | |
---|
884 | #ifdef USE_LOCALE_CTYPE |
---|
885 | new_ctype(curctype); |
---|
886 | #endif /* USE_LOCALE_CTYPE */ |
---|
887 | |
---|
888 | #ifdef USE_LOCALE_COLLATE |
---|
889 | new_collate(curcoll); |
---|
890 | #endif /* USE_LOCALE_COLLATE */ |
---|
891 | |
---|
892 | #ifdef USE_LOCALE_NUMERIC |
---|
893 | new_numeric(curnum); |
---|
894 | #endif /* USE_LOCALE_NUMERIC */ |
---|
895 | } |
---|
896 | |
---|
897 | #endif /* USE_LOCALE */ |
---|
898 | |
---|
899 | #ifdef USE_LOCALE_CTYPE |
---|
900 | if (curctype != NULL) |
---|
901 | Safefree(curctype); |
---|
902 | #endif /* USE_LOCALE_CTYPE */ |
---|
903 | #ifdef USE_LOCALE_COLLATE |
---|
904 | if (curcoll != NULL) |
---|
905 | Safefree(curcoll); |
---|
906 | #endif /* USE_LOCALE_COLLATE */ |
---|
907 | #ifdef USE_LOCALE_NUMERIC |
---|
908 | if (curnum != NULL) |
---|
909 | Safefree(curnum); |
---|
910 | #endif /* USE_LOCALE_NUMERIC */ |
---|
911 | return ok; |
---|
912 | } |
---|
913 | |
---|
914 | /* Backwards compatibility. */ |
---|
915 | int |
---|
916 | Perl_init_i18nl14n(pTHX_ int printwarn) |
---|
917 | { |
---|
918 | return init_i18nl10n(printwarn); |
---|
919 | } |
---|
920 | |
---|
921 | #ifdef USE_LOCALE_COLLATE |
---|
922 | |
---|
923 | /* |
---|
924 | * mem_collxfrm() is a bit like strxfrm() but with two important |
---|
925 | * differences. First, it handles embedded NULs. Second, it allocates |
---|
926 | * a bit more memory than needed for the transformed data itself. |
---|
927 | * The real transformed data begins at offset sizeof(collationix). |
---|
928 | * Please see sv_collxfrm() to see how this is used. |
---|
929 | */ |
---|
930 | char * |
---|
931 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) |
---|
932 | { |
---|
933 | char *xbuf; |
---|
934 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
---|
935 | |
---|
936 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
---|
937 | /* the +1 is for the terminating NUL. */ |
---|
938 | |
---|
939 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; |
---|
940 | New(171, xbuf, xAlloc, char); |
---|
941 | if (! xbuf) |
---|
942 | goto bad; |
---|
943 | |
---|
944 | *(U32*)xbuf = PL_collation_ix; |
---|
945 | xout = sizeof(PL_collation_ix); |
---|
946 | for (xin = 0; xin < len; ) { |
---|
947 | SSize_t xused; |
---|
948 | |
---|
949 | for (;;) { |
---|
950 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
---|
951 | if (xused == -1) |
---|
952 | goto bad; |
---|
953 | if (xused < xAlloc - xout) |
---|
954 | break; |
---|
955 | xAlloc = (2 * xAlloc) + 1; |
---|
956 | Renew(xbuf, xAlloc, char); |
---|
957 | if (! xbuf) |
---|
958 | goto bad; |
---|
959 | } |
---|
960 | |
---|
961 | xin += strlen(s + xin) + 1; |
---|
962 | xout += xused; |
---|
963 | |
---|
964 | /* Embedded NULs are understood but silently skipped |
---|
965 | * because they make no sense in locale collation. */ |
---|
966 | } |
---|
967 | |
---|
968 | xbuf[xout] = '\0'; |
---|
969 | *xlen = xout - sizeof(PL_collation_ix); |
---|
970 | return xbuf; |
---|
971 | |
---|
972 | bad: |
---|
973 | Safefree(xbuf); |
---|
974 | *xlen = 0; |
---|
975 | return NULL; |
---|
976 | } |
---|
977 | |
---|
978 | #endif /* USE_LOCALE_COLLATE */ |
---|
979 | |
---|
980 | #define FBM_TABLE_OFFSET 2 /* Number of bytes between EOS and table*/ |
---|
981 | |
---|
982 | /* As a space optimization, we do not compile tables for strings of length |
---|
983 | 0 and 1, and for strings of length 2 unless FBMcf_TAIL. These are |
---|
984 | special-cased in fbm_instr(). |
---|
985 | |
---|
986 | If FBMcf_TAIL, the table is created as if the string has a trailing \n. */ |
---|
987 | |
---|
988 | /* |
---|
989 | =for apidoc fbm_compile |
---|
990 | |
---|
991 | Analyses the string in order to make fast searches on it using fbm_instr() |
---|
992 | -- the Boyer-Moore algorithm. |
---|
993 | |
---|
994 | =cut |
---|
995 | */ |
---|
996 | |
---|
997 | void |
---|
998 | Perl_fbm_compile(pTHX_ SV *sv, U32 flags) |
---|
999 | { |
---|
1000 | register U8 *s; |
---|
1001 | register U8 *table; |
---|
1002 | register U32 i; |
---|
1003 | STRLEN len; |
---|
1004 | I32 rarest = 0; |
---|
1005 | U32 frequency = 256; |
---|
1006 | |
---|
1007 | if (flags & FBMcf_TAIL) |
---|
1008 | sv_catpvn(sv, "\n", 1); /* Taken into account in fbm_instr() */ |
---|
1009 | s = (U8*)SvPV_force(sv, len); |
---|
1010 | (void)SvUPGRADE(sv, SVt_PVBM); |
---|
1011 | if (len == 0) /* TAIL might be on on a zero-length string. */ |
---|
1012 | return; |
---|
1013 | if (len > 2) { |
---|
1014 | U8 mlen; |
---|
1015 | unsigned char *sb; |
---|
1016 | |
---|
1017 | if (len > 255) |
---|
1018 | mlen = 255; |
---|
1019 | else |
---|
1020 | mlen = (U8)len; |
---|
1021 | Sv_Grow(sv, len + 256 + FBM_TABLE_OFFSET); |
---|
1022 | table = (unsigned char*)(SvPVX(sv) + len + FBM_TABLE_OFFSET); |
---|
1023 | s = table - 1 - FBM_TABLE_OFFSET; /* last char */ |
---|
1024 | memset((void*)table, mlen, 256); |
---|
1025 | table[-1] = (U8)flags; |
---|
1026 | i = 0; |
---|
1027 | sb = s - mlen + 1; /* first char (maybe) */ |
---|
1028 | while (s >= sb) { |
---|
1029 | if (table[*s] == mlen) |
---|
1030 | table[*s] = (U8)i; |
---|
1031 | s--, i++; |
---|
1032 | } |
---|
1033 | } |
---|
1034 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
---|
1035 | SvVALID_on(sv); |
---|
1036 | |
---|
1037 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
---|
1038 | for (i = 0; i < len; i++) { |
---|
1039 | if (PL_freq[s[i]] < frequency) { |
---|
1040 | rarest = i; |
---|
1041 | frequency = PL_freq[s[i]]; |
---|
1042 | } |
---|
1043 | } |
---|
1044 | BmRARE(sv) = s[rarest]; |
---|
1045 | BmPREVIOUS(sv) = rarest; |
---|
1046 | BmUSEFUL(sv) = 100; /* Initial value */ |
---|
1047 | if (flags & FBMcf_TAIL) |
---|
1048 | SvTAIL_on(sv); |
---|
1049 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n", |
---|
1050 | BmRARE(sv),BmPREVIOUS(sv))); |
---|
1051 | } |
---|
1052 | |
---|
1053 | /* If SvTAIL(littlestr), it has a fake '\n' at end. */ |
---|
1054 | /* If SvTAIL is actually due to \Z or \z, this gives false positives |
---|
1055 | if multiline */ |
---|
1056 | |
---|
1057 | /* |
---|
1058 | =for apidoc fbm_instr |
---|
1059 | |
---|
1060 | Returns the location of the SV in the string delimited by C<str> and |
---|
1061 | C<strend>. It returns C<Nullch> if the string can't be found. The C<sv> |
---|
1062 | does not have to be fbm_compiled, but the search will not be as fast |
---|
1063 | then. |
---|
1064 | |
---|
1065 | =cut |
---|
1066 | */ |
---|
1067 | |
---|
1068 | char * |
---|
1069 | Perl_fbm_instr(pTHX_ unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) |
---|
1070 | { |
---|
1071 | register unsigned char *s; |
---|
1072 | STRLEN l; |
---|
1073 | register unsigned char *little = (unsigned char *)SvPV(littlestr,l); |
---|
1074 | register STRLEN littlelen = l; |
---|
1075 | register I32 multiline = flags & FBMrf_MULTILINE; |
---|
1076 | |
---|
1077 | if (bigend - big < littlelen) { |
---|
1078 | if ( SvTAIL(littlestr) |
---|
1079 | && (bigend - big == littlelen - 1) |
---|
1080 | && (littlelen == 1 |
---|
1081 | || (*big == *little && memEQ(big, little, littlelen - 1)))) |
---|
1082 | return (char*)big; |
---|
1083 | return Nullch; |
---|
1084 | } |
---|
1085 | |
---|
1086 | if (littlelen <= 2) { /* Special-cased */ |
---|
1087 | |
---|
1088 | if (littlelen == 1) { |
---|
1089 | if (SvTAIL(littlestr) && !multiline) { /* Anchor only! */ |
---|
1090 | /* Know that bigend != big. */ |
---|
1091 | if (bigend[-1] == '\n') |
---|
1092 | return (char *)(bigend - 1); |
---|
1093 | return (char *) bigend; |
---|
1094 | } |
---|
1095 | s = big; |
---|
1096 | while (s < bigend) { |
---|
1097 | if (*s == *little) |
---|
1098 | return (char *)s; |
---|
1099 | s++; |
---|
1100 | } |
---|
1101 | if (SvTAIL(littlestr)) |
---|
1102 | return (char *) bigend; |
---|
1103 | return Nullch; |
---|
1104 | } |
---|
1105 | if (!littlelen) |
---|
1106 | return (char*)big; /* Cannot be SvTAIL! */ |
---|
1107 | |
---|
1108 | /* littlelen is 2 */ |
---|
1109 | if (SvTAIL(littlestr) && !multiline) { |
---|
1110 | if (bigend[-1] == '\n' && bigend[-2] == *little) |
---|
1111 | return (char*)bigend - 2; |
---|
1112 | if (bigend[-1] == *little) |
---|
1113 | return (char*)bigend - 1; |
---|
1114 | return Nullch; |
---|
1115 | } |
---|
1116 | { |
---|
1117 | /* This should be better than FBM if c1 == c2, and almost |
---|
1118 | as good otherwise: maybe better since we do less indirection. |
---|
1119 | And we save a lot of memory by caching no table. */ |
---|
1120 | register unsigned char c1 = little[0]; |
---|
1121 | register unsigned char c2 = little[1]; |
---|
1122 | |
---|
1123 | s = big + 1; |
---|
1124 | bigend--; |
---|
1125 | if (c1 != c2) { |
---|
1126 | while (s <= bigend) { |
---|
1127 | if (s[0] == c2) { |
---|
1128 | if (s[-1] == c1) |
---|
1129 | return (char*)s - 1; |
---|
1130 | s += 2; |
---|
1131 | continue; |
---|
1132 | } |
---|
1133 | next_chars: |
---|
1134 | if (s[0] == c1) { |
---|
1135 | if (s == bigend) |
---|
1136 | goto check_1char_anchor; |
---|
1137 | if (s[1] == c2) |
---|
1138 | return (char*)s; |
---|
1139 | else { |
---|
1140 | s++; |
---|
1141 | goto next_chars; |
---|
1142 | } |
---|
1143 | } |
---|
1144 | else |
---|
1145 | s += 2; |
---|
1146 | } |
---|
1147 | goto check_1char_anchor; |
---|
1148 | } |
---|
1149 | /* Now c1 == c2 */ |
---|
1150 | while (s <= bigend) { |
---|
1151 | if (s[0] == c1) { |
---|
1152 | if (s[-1] == c1) |
---|
1153 | return (char*)s - 1; |
---|
1154 | if (s == bigend) |
---|
1155 | goto check_1char_anchor; |
---|
1156 | if (s[1] == c1) |
---|
1157 | return (char*)s; |
---|
1158 | s += 3; |
---|
1159 | } |
---|
1160 | else |
---|
1161 | s += 2; |
---|
1162 | } |
---|
1163 | } |
---|
1164 | check_1char_anchor: /* One char and anchor! */ |
---|
1165 | if (SvTAIL(littlestr) && (*bigend == *little)) |
---|
1166 | return (char *)bigend; /* bigend is already decremented. */ |
---|
1167 | return Nullch; |
---|
1168 | } |
---|
1169 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
---|
1170 | s = bigend - littlelen; |
---|
1171 | if (s >= big && bigend[-1] == '\n' && *s == *little |
---|
1172 | /* Automatically of length > 2 */ |
---|
1173 | && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2)) |
---|
1174 | { |
---|
1175 | return (char*)s; /* how sweet it is */ |
---|
1176 | } |
---|
1177 | if (s[1] == *little |
---|
1178 | && memEQ((char*)s + 2, (char*)little + 1, littlelen - 2)) |
---|
1179 | { |
---|
1180 | return (char*)s + 1; /* how sweet it is */ |
---|
1181 | } |
---|
1182 | return Nullch; |
---|
1183 | } |
---|
1184 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
---|
1185 | char *b = ninstr((char*)big,(char*)bigend, |
---|
1186 | (char*)little, (char*)little + littlelen); |
---|
1187 | |
---|
1188 | if (!b && SvTAIL(littlestr)) { /* Automatically multiline! */ |
---|
1189 | /* Chop \n from littlestr: */ |
---|
1190 | s = bigend - littlelen + 1; |
---|
1191 | if (*s == *little |
---|
1192 | && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2)) |
---|
1193 | { |
---|
1194 | return (char*)s; |
---|
1195 | } |
---|
1196 | return Nullch; |
---|
1197 | } |
---|
1198 | return b; |
---|
1199 | } |
---|
1200 | |
---|
1201 | { /* Do actual FBM. */ |
---|
1202 | register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET; |
---|
1203 | register unsigned char *oldlittle; |
---|
1204 | |
---|
1205 | if (littlelen > bigend - big) |
---|
1206 | return Nullch; |
---|
1207 | --littlelen; /* Last char found by table lookup */ |
---|
1208 | |
---|
1209 | s = big + littlelen; |
---|
1210 | little += littlelen; /* last char */ |
---|
1211 | oldlittle = little; |
---|
1212 | if (s < bigend) { |
---|
1213 | register I32 tmp; |
---|
1214 | |
---|
1215 | top2: |
---|
1216 | /*SUPPRESS 560*/ |
---|
1217 | if ((tmp = table[*s])) { |
---|
1218 | #ifdef POINTERRIGOR |
---|
1219 | if (bigend - s > tmp) { |
---|
1220 | s += tmp; |
---|
1221 | goto top2; |
---|
1222 | } |
---|
1223 | s += tmp; |
---|
1224 | #else |
---|
1225 | if ((s += tmp) < bigend) |
---|
1226 | goto top2; |
---|
1227 | #endif |
---|
1228 | goto check_end; |
---|
1229 | } |
---|
1230 | else { /* less expensive than calling strncmp() */ |
---|
1231 | register unsigned char *olds = s; |
---|
1232 | |
---|
1233 | tmp = littlelen; |
---|
1234 | |
---|
1235 | while (tmp--) { |
---|
1236 | if (*--s == *--little) |
---|
1237 | continue; |
---|
1238 | s = olds + 1; /* here we pay the price for failure */ |
---|
1239 | little = oldlittle; |
---|
1240 | if (s < bigend) /* fake up continue to outer loop */ |
---|
1241 | goto top2; |
---|
1242 | goto check_end; |
---|
1243 | } |
---|
1244 | return (char *)s; |
---|
1245 | } |
---|
1246 | } |
---|
1247 | check_end: |
---|
1248 | if ( s == bigend && (table[-1] & FBMcf_TAIL) |
---|
1249 | && memEQ(bigend - littlelen, oldlittle - littlelen, littlelen) ) |
---|
1250 | return (char*)bigend - littlelen; |
---|
1251 | return Nullch; |
---|
1252 | } |
---|
1253 | } |
---|
1254 | |
---|
1255 | /* start_shift, end_shift are positive quantities which give offsets |
---|
1256 | of ends of some substring of bigstr. |
---|
1257 | If `last' we want the last occurence. |
---|
1258 | old_posp is the way of communication between consequent calls if |
---|
1259 | the next call needs to find the . |
---|
1260 | The initial *old_posp should be -1. |
---|
1261 | |
---|
1262 | Note that we take into account SvTAIL, so one can get extra |
---|
1263 | optimizations if _ALL flag is set. |
---|
1264 | */ |
---|
1265 | |
---|
1266 | /* If SvTAIL is actually due to \Z or \z, this gives false positives |
---|
1267 | if PL_multiline. In fact if !PL_multiline the autoritative answer |
---|
1268 | is not supported yet. */ |
---|
1269 | |
---|
1270 | char * |
---|
1271 | Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
---|
1272 | { |
---|
1273 | register unsigned char *s, *x; |
---|
1274 | register unsigned char *big; |
---|
1275 | register I32 pos; |
---|
1276 | register I32 previous; |
---|
1277 | register I32 first; |
---|
1278 | register unsigned char *little; |
---|
1279 | register I32 stop_pos; |
---|
1280 | register unsigned char *littleend; |
---|
1281 | I32 found = 0; |
---|
1282 | |
---|
1283 | if (*old_posp == -1 |
---|
1284 | ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 |
---|
1285 | : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) { |
---|
1286 | cant_find: |
---|
1287 | if ( BmRARE(littlestr) == '\n' |
---|
1288 | && BmPREVIOUS(littlestr) == SvCUR(littlestr) - 1) { |
---|
1289 | little = (unsigned char *)(SvPVX(littlestr)); |
---|
1290 | littleend = little + SvCUR(littlestr); |
---|
1291 | first = *little++; |
---|
1292 | goto check_tail; |
---|
1293 | } |
---|
1294 | return Nullch; |
---|
1295 | } |
---|
1296 | |
---|
1297 | little = (unsigned char *)(SvPVX(littlestr)); |
---|
1298 | littleend = little + SvCUR(littlestr); |
---|
1299 | first = *little++; |
---|
1300 | /* The value of pos we can start at: */ |
---|
1301 | previous = BmPREVIOUS(littlestr); |
---|
1302 | big = (unsigned char *)(SvPVX(bigstr)); |
---|
1303 | /* The value of pos we can stop at: */ |
---|
1304 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); |
---|
1305 | if (previous + start_shift > stop_pos) { |
---|
1306 | if (previous + start_shift == stop_pos + 1) /* A fake '\n'? */ |
---|
1307 | goto check_tail; |
---|
1308 | return Nullch; |
---|
1309 | } |
---|
1310 | while (pos < previous + start_shift) { |
---|
1311 | if (!(pos += PL_screamnext[pos])) |
---|
1312 | goto cant_find; |
---|
1313 | } |
---|
1314 | #ifdef POINTERRIGOR |
---|
1315 | do { |
---|
1316 | if (pos >= stop_pos) break; |
---|
1317 | if (big[pos-previous] != first) |
---|
1318 | continue; |
---|
1319 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
---|
1320 | if (*s++ != *x++) { |
---|
1321 | s--; |
---|
1322 | break; |
---|
1323 | } |
---|
1324 | } |
---|
1325 | if (s == littleend) { |
---|
1326 | *old_posp = pos; |
---|
1327 | if (!last) return (char *)(big+pos-previous); |
---|
1328 | found = 1; |
---|
1329 | } |
---|
1330 | } while ( pos += PL_screamnext[pos] ); |
---|
1331 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
---|
1332 | #else /* !POINTERRIGOR */ |
---|
1333 | big -= previous; |
---|
1334 | do { |
---|
1335 | if (pos >= stop_pos) break; |
---|
1336 | if (big[pos] != first) |
---|
1337 | continue; |
---|
1338 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
---|
1339 | if (*s++ != *x++) { |
---|
1340 | s--; |
---|
1341 | break; |
---|
1342 | } |
---|
1343 | } |
---|
1344 | if (s == littleend) { |
---|
1345 | *old_posp = pos; |
---|
1346 | if (!last) return (char *)(big+pos); |
---|
1347 | found = 1; |
---|
1348 | } |
---|
1349 | } while ( pos += PL_screamnext[pos] ); |
---|
1350 | if (last && found) |
---|
1351 | return (char *)(big+(*old_posp)); |
---|
1352 | #endif /* POINTERRIGOR */ |
---|
1353 | check_tail: |
---|
1354 | if (!SvTAIL(littlestr) || (end_shift > 0)) |
---|
1355 | return Nullch; |
---|
1356 | /* Ignore the trailing "\n". This code is not microoptimized */ |
---|
1357 | big = (unsigned char *)(SvPVX(bigstr) + SvCUR(bigstr)); |
---|
1358 | stop_pos = littleend - little; /* Actual littlestr len */ |
---|
1359 | if (stop_pos == 0) |
---|
1360 | return (char*)big; |
---|
1361 | big -= stop_pos; |
---|
1362 | if (*big == first |
---|
1363 | && ((stop_pos == 1) || memEQ(big + 1, little, stop_pos - 1))) |
---|
1364 | return (char*)big; |
---|
1365 | return Nullch; |
---|
1366 | } |
---|
1367 | |
---|
1368 | I32 |
---|
1369 | Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len) |
---|
1370 | { |
---|
1371 | register U8 *a = (U8 *)s1; |
---|
1372 | register U8 *b = (U8 *)s2; |
---|
1373 | while (len--) { |
---|
1374 | if (*a != *b && *a != PL_fold[*b]) |
---|
1375 | return 1; |
---|
1376 | a++,b++; |
---|
1377 | } |
---|
1378 | return 0; |
---|
1379 | } |
---|
1380 | |
---|
1381 | I32 |
---|
1382 | Perl_ibcmp_locale(pTHX_ const char *s1, const char *s2, register I32 len) |
---|
1383 | { |
---|
1384 | register U8 *a = (U8 *)s1; |
---|
1385 | register U8 *b = (U8 *)s2; |
---|
1386 | while (len--) { |
---|
1387 | if (*a != *b && *a != PL_fold_locale[*b]) |
---|
1388 | return 1; |
---|
1389 | a++,b++; |
---|
1390 | } |
---|
1391 | return 0; |
---|
1392 | } |
---|
1393 | |
---|
1394 | /* copy a string to a safe spot */ |
---|
1395 | |
---|
1396 | /* |
---|
1397 | =for apidoc savepv |
---|
1398 | |
---|
1399 | Copy a string to a safe spot. This does not use an SV. |
---|
1400 | |
---|
1401 | =cut |
---|
1402 | */ |
---|
1403 | |
---|
1404 | char * |
---|
1405 | Perl_savepv(pTHX_ const char *sv) |
---|
1406 | { |
---|
1407 | register char *newaddr; |
---|
1408 | |
---|
1409 | New(902,newaddr,strlen(sv)+1,char); |
---|
1410 | (void)strcpy(newaddr,sv); |
---|
1411 | return newaddr; |
---|
1412 | } |
---|
1413 | |
---|
1414 | /* same thing but with a known length */ |
---|
1415 | |
---|
1416 | /* |
---|
1417 | =for apidoc savepvn |
---|
1418 | |
---|
1419 | Copy a string to a safe spot. The C<len> indicates number of bytes to |
---|
1420 | copy. This does not use an SV. |
---|
1421 | |
---|
1422 | =cut |
---|
1423 | */ |
---|
1424 | |
---|
1425 | char * |
---|
1426 | Perl_savepvn(pTHX_ const char *sv, register I32 len) |
---|
1427 | { |
---|
1428 | register char *newaddr; |
---|
1429 | |
---|
1430 | New(903,newaddr,len+1,char); |
---|
1431 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
---|
1432 | newaddr[len] = '\0'; /* is now */ |
---|
1433 | return newaddr; |
---|
1434 | } |
---|
1435 | |
---|
1436 | /* the SV for Perl_form() and mess() is not kept in an arena */ |
---|
1437 | |
---|
1438 | STATIC SV * |
---|
1439 | S_mess_alloc(pTHX) |
---|
1440 | { |
---|
1441 | SV *sv; |
---|
1442 | XPVMG *any; |
---|
1443 | |
---|
1444 | if (!PL_dirty) |
---|
1445 | return sv_2mortal(newSVpvn("",0)); |
---|
1446 | |
---|
1447 | if (PL_mess_sv) |
---|
1448 | return PL_mess_sv; |
---|
1449 | |
---|
1450 | /* Create as PVMG now, to avoid any upgrading later */ |
---|
1451 | New(905, sv, 1, SV); |
---|
1452 | Newz(905, any, 1, XPVMG); |
---|
1453 | SvFLAGS(sv) = SVt_PVMG; |
---|
1454 | SvANY(sv) = (void*)any; |
---|
1455 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ |
---|
1456 | PL_mess_sv = sv; |
---|
1457 | return sv; |
---|
1458 | } |
---|
1459 | |
---|
1460 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1461 | char * |
---|
1462 | Perl_form_nocontext(const char* pat, ...) |
---|
1463 | { |
---|
1464 | dTHX; |
---|
1465 | char *retval; |
---|
1466 | va_list args; |
---|
1467 | va_start(args, pat); |
---|
1468 | retval = vform(pat, &args); |
---|
1469 | va_end(args); |
---|
1470 | return retval; |
---|
1471 | } |
---|
1472 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1473 | |
---|
1474 | char * |
---|
1475 | Perl_form(pTHX_ const char* pat, ...) |
---|
1476 | { |
---|
1477 | char *retval; |
---|
1478 | va_list args; |
---|
1479 | va_start(args, pat); |
---|
1480 | retval = vform(pat, &args); |
---|
1481 | va_end(args); |
---|
1482 | return retval; |
---|
1483 | } |
---|
1484 | |
---|
1485 | char * |
---|
1486 | Perl_vform(pTHX_ const char *pat, va_list *args) |
---|
1487 | { |
---|
1488 | SV *sv = mess_alloc(); |
---|
1489 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
---|
1490 | return SvPVX(sv); |
---|
1491 | } |
---|
1492 | |
---|
1493 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1494 | SV * |
---|
1495 | Perl_mess_nocontext(const char *pat, ...) |
---|
1496 | { |
---|
1497 | dTHX; |
---|
1498 | SV *retval; |
---|
1499 | va_list args; |
---|
1500 | va_start(args, pat); |
---|
1501 | retval = vmess(pat, &args); |
---|
1502 | va_end(args); |
---|
1503 | return retval; |
---|
1504 | } |
---|
1505 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1506 | |
---|
1507 | SV * |
---|
1508 | Perl_mess(pTHX_ const char *pat, ...) |
---|
1509 | { |
---|
1510 | SV *retval; |
---|
1511 | va_list args; |
---|
1512 | va_start(args, pat); |
---|
1513 | retval = vmess(pat, &args); |
---|
1514 | va_end(args); |
---|
1515 | return retval; |
---|
1516 | } |
---|
1517 | |
---|
1518 | SV * |
---|
1519 | Perl_vmess(pTHX_ const char *pat, va_list *args) |
---|
1520 | { |
---|
1521 | SV *sv = mess_alloc(); |
---|
1522 | static char dgd[] = " during global destruction.\n"; |
---|
1523 | |
---|
1524 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
---|
1525 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
---|
1526 | if (CopLINE(PL_curcop)) |
---|
1527 | Perl_sv_catpvf(aTHX_ sv, " at %s line %"IVdf, |
---|
1528 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); |
---|
1529 | if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { |
---|
1530 | bool line_mode = (RsSIMPLE(PL_rs) && |
---|
1531 | SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); |
---|
1532 | Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %"IVdf, |
---|
1533 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), |
---|
1534 | line_mode ? "line" : "chunk", |
---|
1535 | (IV)IoLINES(GvIOp(PL_last_in_gv))); |
---|
1536 | } |
---|
1537 | #ifdef USE_THREADS |
---|
1538 | if (thr->tid) |
---|
1539 | Perl_sv_catpvf(aTHX_ sv, " thread %ld", thr->tid); |
---|
1540 | #endif |
---|
1541 | sv_catpv(sv, PL_dirty ? dgd : ".\n"); |
---|
1542 | } |
---|
1543 | return sv; |
---|
1544 | } |
---|
1545 | |
---|
1546 | OP * |
---|
1547 | Perl_vdie(pTHX_ const char* pat, va_list *args) |
---|
1548 | { |
---|
1549 | char *message; |
---|
1550 | int was_in_eval = PL_in_eval; |
---|
1551 | HV *stash; |
---|
1552 | GV *gv; |
---|
1553 | CV *cv; |
---|
1554 | SV *msv; |
---|
1555 | STRLEN msglen; |
---|
1556 | |
---|
1557 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
---|
1558 | "%p: die: curstack = %p, mainstack = %p\n", |
---|
1559 | thr, PL_curstack, PL_mainstack)); |
---|
1560 | |
---|
1561 | if (pat) { |
---|
1562 | msv = vmess(pat, args); |
---|
1563 | if (PL_errors && SvCUR(PL_errors)) { |
---|
1564 | sv_catsv(PL_errors, msv); |
---|
1565 | message = SvPV(PL_errors, msglen); |
---|
1566 | SvCUR_set(PL_errors, 0); |
---|
1567 | } |
---|
1568 | else |
---|
1569 | message = SvPV(msv,msglen); |
---|
1570 | } |
---|
1571 | else { |
---|
1572 | message = Nullch; |
---|
1573 | msglen = 0; |
---|
1574 | } |
---|
1575 | |
---|
1576 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
---|
1577 | "%p: die: message = %s\ndiehook = %p\n", |
---|
1578 | thr, message, PL_diehook)); |
---|
1579 | if (PL_diehook) { |
---|
1580 | /* sv_2cv might call Perl_croak() */ |
---|
1581 | SV *olddiehook = PL_diehook; |
---|
1582 | ENTER; |
---|
1583 | SAVESPTR(PL_diehook); |
---|
1584 | PL_diehook = Nullsv; |
---|
1585 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
---|
1586 | LEAVE; |
---|
1587 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
---|
1588 | dSP; |
---|
1589 | SV *msg; |
---|
1590 | |
---|
1591 | ENTER; |
---|
1592 | save_re_context(); |
---|
1593 | if (message) { |
---|
1594 | msg = newSVpvn(message, msglen); |
---|
1595 | SvREADONLY_on(msg); |
---|
1596 | SAVEFREESV(msg); |
---|
1597 | } |
---|
1598 | else { |
---|
1599 | msg = ERRSV; |
---|
1600 | } |
---|
1601 | |
---|
1602 | PUSHSTACKi(PERLSI_DIEHOOK); |
---|
1603 | PUSHMARK(SP); |
---|
1604 | XPUSHs(msg); |
---|
1605 | PUTBACK; |
---|
1606 | call_sv((SV*)cv, G_DISCARD); |
---|
1607 | POPSTACK; |
---|
1608 | LEAVE; |
---|
1609 | } |
---|
1610 | } |
---|
1611 | |
---|
1612 | PL_restartop = die_where(message, msglen); |
---|
1613 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
---|
1614 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
---|
1615 | thr, PL_restartop, was_in_eval, PL_top_env)); |
---|
1616 | if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) |
---|
1617 | JMPENV_JUMP(3); |
---|
1618 | return PL_restartop; |
---|
1619 | } |
---|
1620 | |
---|
1621 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1622 | OP * |
---|
1623 | Perl_die_nocontext(const char* pat, ...) |
---|
1624 | { |
---|
1625 | dTHX; |
---|
1626 | OP *o; |
---|
1627 | va_list args; |
---|
1628 | va_start(args, pat); |
---|
1629 | o = vdie(pat, &args); |
---|
1630 | va_end(args); |
---|
1631 | return o; |
---|
1632 | } |
---|
1633 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1634 | |
---|
1635 | OP * |
---|
1636 | Perl_die(pTHX_ const char* pat, ...) |
---|
1637 | { |
---|
1638 | OP *o; |
---|
1639 | va_list args; |
---|
1640 | va_start(args, pat); |
---|
1641 | o = vdie(pat, &args); |
---|
1642 | va_end(args); |
---|
1643 | return o; |
---|
1644 | } |
---|
1645 | |
---|
1646 | void |
---|
1647 | Perl_vcroak(pTHX_ const char* pat, va_list *args) |
---|
1648 | { |
---|
1649 | char *message; |
---|
1650 | HV *stash; |
---|
1651 | GV *gv; |
---|
1652 | CV *cv; |
---|
1653 | SV *msv; |
---|
1654 | STRLEN msglen; |
---|
1655 | |
---|
1656 | if (pat) { |
---|
1657 | msv = vmess(pat, args); |
---|
1658 | if (PL_errors && SvCUR(PL_errors)) { |
---|
1659 | sv_catsv(PL_errors, msv); |
---|
1660 | message = SvPV(PL_errors, msglen); |
---|
1661 | SvCUR_set(PL_errors, 0); |
---|
1662 | } |
---|
1663 | else |
---|
1664 | message = SvPV(msv,msglen); |
---|
1665 | } |
---|
1666 | else { |
---|
1667 | message = Nullch; |
---|
1668 | msglen = 0; |
---|
1669 | } |
---|
1670 | |
---|
1671 | DEBUG_S(PerlIO_printf(Perl_debug_log, "croak: 0x%"UVxf" %s", |
---|
1672 | PTR2UV(thr), message)); |
---|
1673 | |
---|
1674 | if (PL_diehook) { |
---|
1675 | /* sv_2cv might call Perl_croak() */ |
---|
1676 | SV *olddiehook = PL_diehook; |
---|
1677 | ENTER; |
---|
1678 | SAVESPTR(PL_diehook); |
---|
1679 | PL_diehook = Nullsv; |
---|
1680 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
---|
1681 | LEAVE; |
---|
1682 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
---|
1683 | dSP; |
---|
1684 | SV *msg; |
---|
1685 | |
---|
1686 | ENTER; |
---|
1687 | save_re_context(); |
---|
1688 | if (message) { |
---|
1689 | msg = newSVpvn(message, msglen); |
---|
1690 | SvREADONLY_on(msg); |
---|
1691 | SAVEFREESV(msg); |
---|
1692 | } |
---|
1693 | else { |
---|
1694 | msg = ERRSV; |
---|
1695 | } |
---|
1696 | |
---|
1697 | PUSHSTACKi(PERLSI_DIEHOOK); |
---|
1698 | PUSHMARK(SP); |
---|
1699 | XPUSHs(msg); |
---|
1700 | PUTBACK; |
---|
1701 | call_sv((SV*)cv, G_DISCARD); |
---|
1702 | POPSTACK; |
---|
1703 | LEAVE; |
---|
1704 | } |
---|
1705 | } |
---|
1706 | if (PL_in_eval) { |
---|
1707 | PL_restartop = die_where(message, msglen); |
---|
1708 | JMPENV_JUMP(3); |
---|
1709 | } |
---|
1710 | { |
---|
1711 | #ifdef USE_SFIO |
---|
1712 | /* SFIO can really mess with your errno */ |
---|
1713 | int e = errno; |
---|
1714 | #endif |
---|
1715 | PerlIO *serr = Perl_error_log; |
---|
1716 | |
---|
1717 | PerlIO_write(serr, message, msglen); |
---|
1718 | (void)PerlIO_flush(serr); |
---|
1719 | #ifdef USE_SFIO |
---|
1720 | errno = e; |
---|
1721 | #endif |
---|
1722 | } |
---|
1723 | my_failure_exit(); |
---|
1724 | } |
---|
1725 | |
---|
1726 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1727 | void |
---|
1728 | Perl_croak_nocontext(const char *pat, ...) |
---|
1729 | { |
---|
1730 | dTHX; |
---|
1731 | va_list args; |
---|
1732 | va_start(args, pat); |
---|
1733 | vcroak(pat, &args); |
---|
1734 | /* NOTREACHED */ |
---|
1735 | va_end(args); |
---|
1736 | } |
---|
1737 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1738 | |
---|
1739 | /* |
---|
1740 | =for apidoc croak |
---|
1741 | |
---|
1742 | This is the XSUB-writer's interface to Perl's C<die> function. |
---|
1743 | Normally use this function the same way you use the C C<printf> |
---|
1744 | function. See C<warn>. |
---|
1745 | |
---|
1746 | If you want to throw an exception object, assign the object to |
---|
1747 | C<$@> and then pass C<Nullch> to croak(): |
---|
1748 | |
---|
1749 | errsv = get_sv("@", TRUE); |
---|
1750 | sv_setsv(errsv, exception_object); |
---|
1751 | croak(Nullch); |
---|
1752 | |
---|
1753 | =cut |
---|
1754 | */ |
---|
1755 | |
---|
1756 | void |
---|
1757 | Perl_croak(pTHX_ const char *pat, ...) |
---|
1758 | { |
---|
1759 | va_list args; |
---|
1760 | va_start(args, pat); |
---|
1761 | vcroak(pat, &args); |
---|
1762 | /* NOTREACHED */ |
---|
1763 | va_end(args); |
---|
1764 | } |
---|
1765 | |
---|
1766 | void |
---|
1767 | Perl_vwarn(pTHX_ const char* pat, va_list *args) |
---|
1768 | { |
---|
1769 | char *message; |
---|
1770 | HV *stash; |
---|
1771 | GV *gv; |
---|
1772 | CV *cv; |
---|
1773 | SV *msv; |
---|
1774 | STRLEN msglen; |
---|
1775 | |
---|
1776 | msv = vmess(pat, args); |
---|
1777 | message = SvPV(msv, msglen); |
---|
1778 | |
---|
1779 | if (PL_warnhook) { |
---|
1780 | /* sv_2cv might call Perl_warn() */ |
---|
1781 | SV *oldwarnhook = PL_warnhook; |
---|
1782 | ENTER; |
---|
1783 | SAVESPTR(PL_warnhook); |
---|
1784 | PL_warnhook = Nullsv; |
---|
1785 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
---|
1786 | LEAVE; |
---|
1787 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
---|
1788 | dSP; |
---|
1789 | SV *msg; |
---|
1790 | |
---|
1791 | ENTER; |
---|
1792 | save_re_context(); |
---|
1793 | msg = newSVpvn(message, msglen); |
---|
1794 | SvREADONLY_on(msg); |
---|
1795 | SAVEFREESV(msg); |
---|
1796 | |
---|
1797 | PUSHSTACKi(PERLSI_WARNHOOK); |
---|
1798 | PUSHMARK(SP); |
---|
1799 | XPUSHs(msg); |
---|
1800 | PUTBACK; |
---|
1801 | call_sv((SV*)cv, G_DISCARD); |
---|
1802 | POPSTACK; |
---|
1803 | LEAVE; |
---|
1804 | return; |
---|
1805 | } |
---|
1806 | } |
---|
1807 | { |
---|
1808 | PerlIO *serr = Perl_error_log; |
---|
1809 | |
---|
1810 | PerlIO_write(serr, message, msglen); |
---|
1811 | #ifdef LEAKTEST |
---|
1812 | DEBUG_L(*message == '!' |
---|
1813 | ? (xstat(message[1]=='!' |
---|
1814 | ? (message[2]=='!' ? 2 : 1) |
---|
1815 | : 0) |
---|
1816 | , 0) |
---|
1817 | : 0); |
---|
1818 | #endif |
---|
1819 | (void)PerlIO_flush(serr); |
---|
1820 | } |
---|
1821 | } |
---|
1822 | |
---|
1823 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1824 | void |
---|
1825 | Perl_warn_nocontext(const char *pat, ...) |
---|
1826 | { |
---|
1827 | dTHX; |
---|
1828 | va_list args; |
---|
1829 | va_start(args, pat); |
---|
1830 | vwarn(pat, &args); |
---|
1831 | va_end(args); |
---|
1832 | } |
---|
1833 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1834 | |
---|
1835 | /* |
---|
1836 | =for apidoc warn |
---|
1837 | |
---|
1838 | This is the XSUB-writer's interface to Perl's C<warn> function. Use this |
---|
1839 | function the same way you use the C C<printf> function. See |
---|
1840 | C<croak>. |
---|
1841 | |
---|
1842 | =cut |
---|
1843 | */ |
---|
1844 | |
---|
1845 | void |
---|
1846 | Perl_warn(pTHX_ const char *pat, ...) |
---|
1847 | { |
---|
1848 | va_list args; |
---|
1849 | va_start(args, pat); |
---|
1850 | vwarn(pat, &args); |
---|
1851 | va_end(args); |
---|
1852 | } |
---|
1853 | |
---|
1854 | #if defined(PERL_IMPLICIT_CONTEXT) |
---|
1855 | void |
---|
1856 | Perl_warner_nocontext(U32 err, const char *pat, ...) |
---|
1857 | { |
---|
1858 | dTHX; |
---|
1859 | va_list args; |
---|
1860 | va_start(args, pat); |
---|
1861 | vwarner(err, pat, &args); |
---|
1862 | va_end(args); |
---|
1863 | } |
---|
1864 | #endif /* PERL_IMPLICIT_CONTEXT */ |
---|
1865 | |
---|
1866 | void |
---|
1867 | Perl_warner(pTHX_ U32 err, const char* pat,...) |
---|
1868 | { |
---|
1869 | va_list args; |
---|
1870 | va_start(args, pat); |
---|
1871 | vwarner(err, pat, &args); |
---|
1872 | va_end(args); |
---|
1873 | } |
---|
1874 | |
---|
1875 | void |
---|
1876 | Perl_vwarner(pTHX_ U32 err, const char* pat, va_list* args) |
---|
1877 | { |
---|
1878 | char *message; |
---|
1879 | HV *stash; |
---|
1880 | GV *gv; |
---|
1881 | CV *cv; |
---|
1882 | SV *msv; |
---|
1883 | STRLEN msglen; |
---|
1884 | |
---|
1885 | msv = vmess(pat, args); |
---|
1886 | message = SvPV(msv, msglen); |
---|
1887 | |
---|
1888 | if (ckDEAD(err)) { |
---|
1889 | #ifdef USE_THREADS |
---|
1890 | DEBUG_S(PerlIO_printf(Perl_debug_log, "croak: 0x%"UVxf" %s", PTR2UV(thr), message)); |
---|
1891 | #endif /* USE_THREADS */ |
---|
1892 | if (PL_diehook) { |
---|
1893 | /* sv_2cv might call Perl_croak() */ |
---|
1894 | SV *olddiehook = PL_diehook; |
---|
1895 | ENTER; |
---|
1896 | SAVESPTR(PL_diehook); |
---|
1897 | PL_diehook = Nullsv; |
---|
1898 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
---|
1899 | LEAVE; |
---|
1900 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
---|
1901 | dSP; |
---|
1902 | SV *msg; |
---|
1903 | |
---|
1904 | ENTER; |
---|
1905 | save_re_context(); |
---|
1906 | msg = newSVpvn(message, msglen); |
---|
1907 | SvREADONLY_on(msg); |
---|
1908 | SAVEFREESV(msg); |
---|
1909 | |
---|
1910 | PUSHSTACKi(PERLSI_DIEHOOK); |
---|
1911 | PUSHMARK(sp); |
---|
1912 | XPUSHs(msg); |
---|
1913 | PUTBACK; |
---|
1914 | call_sv((SV*)cv, G_DISCARD); |
---|
1915 | POPSTACK; |
---|
1916 | LEAVE; |
---|
1917 | } |
---|
1918 | } |
---|
1919 | if (PL_in_eval) { |
---|
1920 | PL_restartop = die_where(message, msglen); |
---|
1921 | JMPENV_JUMP(3); |
---|
1922 | } |
---|
1923 | { |
---|
1924 | PerlIO *serr = Perl_error_log; |
---|
1925 | PerlIO_write(serr, message, msglen); |
---|
1926 | (void)PerlIO_flush(serr); |
---|
1927 | } |
---|
1928 | my_failure_exit(); |
---|
1929 | |
---|
1930 | } |
---|
1931 | else { |
---|
1932 | if (PL_warnhook) { |
---|
1933 | /* sv_2cv might call Perl_warn() */ |
---|
1934 | SV *oldwarnhook = PL_warnhook; |
---|
1935 | ENTER; |
---|
1936 | SAVESPTR(PL_warnhook); |
---|
1937 | PL_warnhook = Nullsv; |
---|
1938 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
---|
1939 | LEAVE; |
---|
1940 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
---|
1941 | dSP; |
---|
1942 | SV *msg; |
---|
1943 | |
---|
1944 | ENTER; |
---|
1945 | save_re_context(); |
---|
1946 | msg = newSVpvn(message, msglen); |
---|
1947 | SvREADONLY_on(msg); |
---|
1948 | SAVEFREESV(msg); |
---|
1949 | |
---|
1950 | PUSHSTACKi(PERLSI_WARNHOOK); |
---|
1951 | PUSHMARK(sp); |
---|
1952 | XPUSHs(msg); |
---|
1953 | PUTBACK; |
---|
1954 | call_sv((SV*)cv, G_DISCARD); |
---|
1955 | POPSTACK; |
---|
1956 | LEAVE; |
---|
1957 | return; |
---|
1958 | } |
---|
1959 | } |
---|
1960 | { |
---|
1961 | PerlIO *serr = Perl_error_log; |
---|
1962 | PerlIO_write(serr, message, msglen); |
---|
1963 | #ifdef LEAKTEST |
---|
1964 | DEBUG_L(*message == '!' |
---|
1965 | ? (xstat(message[1]=='!' |
---|
1966 | ? (message[2]=='!' ? 2 : 1) |
---|
1967 | : 0) |
---|
1968 | , 0) |
---|
1969 | : 0); |
---|
1970 | #endif |
---|
1971 | (void)PerlIO_flush(serr); |
---|
1972 | } |
---|
1973 | } |
---|
1974 | } |
---|
1975 | |
---|
1976 | #ifdef USE_ENVIRON_ARRAY |
---|
1977 | /* VMS' and EPOC's my_setenv() is in vms.c and epoc.c */ |
---|
1978 | #if !defined(WIN32) |
---|
1979 | void |
---|
1980 | Perl_my_setenv(pTHX_ char *nam, char *val) |
---|
1981 | { |
---|
1982 | #ifndef PERL_USE_SAFE_PUTENV |
---|
1983 | /* most putenv()s leak, so we manipulate environ directly */ |
---|
1984 | register I32 i=setenv_getix(nam); /* where does it go? */ |
---|
1985 | |
---|
1986 | if (environ == PL_origenviron) { /* need we copy environment? */ |
---|
1987 | I32 j; |
---|
1988 | I32 max; |
---|
1989 | char **tmpenv; |
---|
1990 | |
---|
1991 | /*SUPPRESS 530*/ |
---|
1992 | for (max = i; environ[max]; max++) ; |
---|
1993 | tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*)); |
---|
1994 | for (j=0; j<max; j++) { /* copy environment */ |
---|
1995 | tmpenv[j] = (char*)safesysmalloc((strlen(environ[j])+1)*sizeof(char)); |
---|
1996 | strcpy(tmpenv[j], environ[j]); |
---|
1997 | } |
---|
1998 | tmpenv[max] = Nullch; |
---|
1999 | environ = tmpenv; /* tell exec where it is now */ |
---|
2000 | } |
---|
2001 | if (!val) { |
---|
2002 | safesysfree(environ[i]); |
---|
2003 | while (environ[i]) { |
---|
2004 | environ[i] = environ[i+1]; |
---|
2005 | i++; |
---|
2006 | } |
---|
2007 | return; |
---|
2008 | } |
---|
2009 | if (!environ[i]) { /* does not exist yet */ |
---|
2010 | environ = (char**)safesysrealloc(environ, (i+2) * sizeof(char*)); |
---|
2011 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
---|
2012 | } |
---|
2013 | else |
---|
2014 | safesysfree(environ[i]); |
---|
2015 | environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char)); |
---|
2016 | |
---|
2017 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
---|
2018 | |
---|
2019 | #else /* PERL_USE_SAFE_PUTENV */ |
---|
2020 | # if defined(__CYGWIN__) |
---|
2021 | setenv(nam, val, 1); |
---|
2022 | # else |
---|
2023 | char *new_env; |
---|
2024 | |
---|
2025 | new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char)); |
---|
2026 | (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */ |
---|
2027 | (void)putenv(new_env); |
---|
2028 | # endif /* __CYGWIN__ */ |
---|
2029 | #endif /* PERL_USE_SAFE_PUTENV */ |
---|
2030 | } |
---|
2031 | |
---|
2032 | #else /* WIN32 */ |
---|
2033 | |
---|
2034 | void |
---|
2035 | Perl_my_setenv(pTHX_ char *nam,char *val) |
---|
2036 | { |
---|
2037 | register char *envstr; |
---|
2038 | STRLEN len = strlen(nam) + 3; |
---|
2039 | if (!val) { |
---|
2040 | val = ""; |
---|
2041 | } |
---|
2042 | len += strlen(val); |
---|
2043 | New(904, envstr, len, char); |
---|
2044 | (void)sprintf(envstr,"%s=%s",nam,val); |
---|
2045 | (void)PerlEnv_putenv(envstr); |
---|
2046 | Safefree(envstr); |
---|
2047 | } |
---|
2048 | |
---|
2049 | #endif /* WIN32 */ |
---|
2050 | |
---|
2051 | I32 |
---|
2052 | Perl_setenv_getix(pTHX_ char *nam) |
---|
2053 | { |
---|
2054 | register I32 i, len = strlen(nam); |
---|
2055 | |
---|
2056 | for (i = 0; environ[i]; i++) { |
---|
2057 | if ( |
---|
2058 | #ifdef WIN32 |
---|
2059 | strnicmp(environ[i],nam,len) == 0 |
---|
2060 | #else |
---|
2061 | strnEQ(environ[i],nam,len) |
---|
2062 | #endif |
---|
2063 | && environ[i][len] == '=') |
---|
2064 | break; /* strnEQ must come first to avoid */ |
---|
2065 | } /* potential SEGV's */ |
---|
2066 | return i; |
---|
2067 | } |
---|
2068 | |
---|
2069 | #endif /* !VMS && !EPOC*/ |
---|
2070 | |
---|
2071 | #ifdef UNLINK_ALL_VERSIONS |
---|
2072 | I32 |
---|
2073 | Perl_unlnk(pTHX_ char *f) /* unlink all versions of a file */ |
---|
2074 | { |
---|
2075 | I32 i; |
---|
2076 | |
---|
2077 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
---|
2078 | return i ? 0 : -1; |
---|
2079 | } |
---|
2080 | #endif |
---|
2081 | |
---|
2082 | /* this is a drop-in replacement for bcopy() */ |
---|
2083 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
---|
2084 | char * |
---|
2085 | Perl_my_bcopy(register const char *from,register char *to,register I32 len) |
---|
2086 | { |
---|
2087 | char *retval = to; |
---|
2088 | |
---|
2089 | if (from - to >= 0) { |
---|
2090 | while (len--) |
---|
2091 | *to++ = *from++; |
---|
2092 | } |
---|
2093 | else { |
---|
2094 | to += len; |
---|
2095 | from += len; |
---|
2096 | while (len--) |
---|
2097 | *(--to) = *(--from); |
---|
2098 | } |
---|
2099 | return retval; |
---|
2100 | } |
---|
2101 | #endif |
---|
2102 | |
---|
2103 | /* this is a drop-in replacement for memset() */ |
---|
2104 | #ifndef HAS_MEMSET |
---|
2105 | void * |
---|
2106 | Perl_my_memset(register char *loc, register I32 ch, register I32 len) |
---|
2107 | { |
---|
2108 | char *retval = loc; |
---|
2109 | |
---|
2110 | while (len--) |
---|
2111 | *loc++ = ch; |
---|
2112 | return retval; |
---|
2113 | } |
---|
2114 | #endif |
---|
2115 | |
---|
2116 | /* this is a drop-in replacement for bzero() */ |
---|
2117 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
---|
2118 | char * |
---|
2119 | Perl_my_bzero(register char *loc, register I32 len) |
---|
2120 | { |
---|
2121 | char *retval = loc; |
---|
2122 | |
---|
2123 | while (len--) |
---|
2124 | *loc++ = 0; |
---|
2125 | return retval; |
---|
2126 | } |
---|
2127 | #endif |
---|
2128 | |
---|
2129 | /* this is a drop-in replacement for memcmp() */ |
---|
2130 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
---|
2131 | I32 |
---|
2132 | Perl_my_memcmp(const char *s1, const char *s2, register I32 len) |
---|
2133 | { |
---|
2134 | register U8 *a = (U8 *)s1; |
---|
2135 | register U8 *b = (U8 *)s2; |
---|
2136 | register I32 tmp; |
---|
2137 | |
---|
2138 | while (len--) { |
---|
2139 | if (tmp = *a++ - *b++) |
---|
2140 | return tmp; |
---|
2141 | } |
---|
2142 | return 0; |
---|
2143 | } |
---|
2144 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
---|
2145 | |
---|
2146 | #ifndef HAS_VPRINTF |
---|
2147 | |
---|
2148 | #ifdef USE_CHAR_VSPRINTF |
---|
2149 | char * |
---|
2150 | #else |
---|
2151 | int |
---|
2152 | #endif |
---|
2153 | vsprintf(char *dest, const char *pat, char *args) |
---|
2154 | { |
---|
2155 | FILE fakebuf; |
---|
2156 | |
---|
2157 | fakebuf._ptr = dest; |
---|
2158 | fakebuf._cnt = 32767; |
---|
2159 | #ifndef _IOSTRG |
---|
2160 | #define _IOSTRG 0 |
---|
2161 | #endif |
---|
2162 | fakebuf._flag = _IOWRT|_IOSTRG; |
---|
2163 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
---|
2164 | (void)putc('\0', &fakebuf); |
---|
2165 | #ifdef USE_CHAR_VSPRINTF |
---|
2166 | return(dest); |
---|
2167 | #else |
---|
2168 | return 0; /* perl doesn't use return value */ |
---|
2169 | #endif |
---|
2170 | } |
---|
2171 | |
---|
2172 | #endif /* HAS_VPRINTF */ |
---|
2173 | |
---|
2174 | #ifdef MYSWAP |
---|
2175 | #if BYTEORDER != 0x4321 |
---|
2176 | short |
---|
2177 | Perl_my_swap(pTHX_ short s) |
---|
2178 | { |
---|
2179 | #if (BYTEORDER & 1) == 0 |
---|
2180 | short result; |
---|
2181 | |
---|
2182 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
---|
2183 | return result; |
---|
2184 | #else |
---|
2185 | return s; |
---|
2186 | #endif |
---|
2187 | } |
---|
2188 | |
---|
2189 | long |
---|
2190 | Perl_my_htonl(pTHX_ long l) |
---|
2191 | { |
---|
2192 | union { |
---|
2193 | long result; |
---|
2194 | char c[sizeof(long)]; |
---|
2195 | } u; |
---|
2196 | |
---|
2197 | #if BYTEORDER == 0x1234 |
---|
2198 | u.c[0] = (l >> 24) & 255; |
---|
2199 | u.c[1] = (l >> 16) & 255; |
---|
2200 | u.c[2] = (l >> 8) & 255; |
---|
2201 | u.c[3] = l & 255; |
---|
2202 | return u.result; |
---|
2203 | #else |
---|
2204 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
---|
2205 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
---|
2206 | #else |
---|
2207 | register I32 o; |
---|
2208 | register I32 s; |
---|
2209 | |
---|
2210 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
---|
2211 | u.c[o & 0xf] = (l >> s) & 255; |
---|
2212 | } |
---|
2213 | return u.result; |
---|
2214 | #endif |
---|
2215 | #endif |
---|
2216 | } |
---|
2217 | |
---|
2218 | long |
---|
2219 | Perl_my_ntohl(pTHX_ long l) |
---|
2220 | { |
---|
2221 | union { |
---|
2222 | long l; |
---|
2223 | char c[sizeof(long)]; |
---|
2224 | } u; |
---|
2225 | |
---|
2226 | #if BYTEORDER == 0x1234 |
---|
2227 | u.c[0] = (l >> 24) & 255; |
---|
2228 | u.c[1] = (l >> 16) & 255; |
---|
2229 | u.c[2] = (l >> 8) & 255; |
---|
2230 | u.c[3] = l & 255; |
---|
2231 | return u.l; |
---|
2232 | #else |
---|
2233 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
---|
2234 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
---|
2235 | #else |
---|
2236 | register I32 o; |
---|
2237 | register I32 s; |
---|
2238 | |
---|
2239 | u.l = l; |
---|
2240 | l = 0; |
---|
2241 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
---|
2242 | l |= (u.c[o & 0xf] & 255) << s; |
---|
2243 | } |
---|
2244 | return l; |
---|
2245 | #endif |
---|
2246 | #endif |
---|
2247 | } |
---|
2248 | |
---|
2249 | #endif /* BYTEORDER != 0x4321 */ |
---|
2250 | #endif /* MYSWAP */ |
---|
2251 | |
---|
2252 | /* |
---|
2253 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
---|
2254 | * If these functions are defined, |
---|
2255 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
---|
2256 | * However, this is not assumed. |
---|
2257 | * -DWS |
---|
2258 | */ |
---|
2259 | |
---|
2260 | #define HTOV(name,type) \ |
---|
2261 | type \ |
---|
2262 | name (register type n) \ |
---|
2263 | { \ |
---|
2264 | union { \ |
---|
2265 | type value; \ |
---|
2266 | char c[sizeof(type)]; \ |
---|
2267 | } u; \ |
---|
2268 | register I32 i; \ |
---|
2269 | register I32 s; \ |
---|
2270 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
---|
2271 | u.c[i] = (n >> s) & 0xFF; \ |
---|
2272 | } \ |
---|
2273 | return u.value; \ |
---|
2274 | } |
---|
2275 | |
---|
2276 | #define VTOH(name,type) \ |
---|
2277 | type \ |
---|
2278 | name (register type n) \ |
---|
2279 | { \ |
---|
2280 | union { \ |
---|
2281 | type value; \ |
---|
2282 | char c[sizeof(type)]; \ |
---|
2283 | } u; \ |
---|
2284 | register I32 i; \ |
---|
2285 | register I32 s; \ |
---|
2286 | u.value = n; \ |
---|
2287 | n = 0; \ |
---|
2288 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
---|
2289 | n += (u.c[i] & 0xFF) << s; \ |
---|
2290 | } \ |
---|
2291 | return n; \ |
---|
2292 | } |
---|
2293 | |
---|
2294 | #if defined(HAS_HTOVS) && !defined(htovs) |
---|
2295 | HTOV(htovs,short) |
---|
2296 | #endif |
---|
2297 | #if defined(HAS_HTOVL) && !defined(htovl) |
---|
2298 | HTOV(htovl,long) |
---|
2299 | #endif |
---|
2300 | #if defined(HAS_VTOHS) && !defined(vtohs) |
---|
2301 | VTOH(vtohs,short) |
---|
2302 | #endif |
---|
2303 | #if defined(HAS_VTOHL) && !defined(vtohl) |
---|
2304 | VTOH(vtohl,long) |
---|
2305 | #endif |
---|
2306 | |
---|
2307 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
---|
2308 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
---|
2309 | PerlIO * |
---|
2310 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
---|
2311 | { |
---|
2312 | int p[2]; |
---|
2313 | register I32 This, that; |
---|
2314 | register Pid_t pid; |
---|
2315 | SV *sv; |
---|
2316 | I32 doexec = strNE(cmd,"-"); |
---|
2317 | I32 did_pipes = 0; |
---|
2318 | int pp[2]; |
---|
2319 | |
---|
2320 | PERL_FLUSHALL_FOR_CHILD; |
---|
2321 | #ifdef OS2 |
---|
2322 | if (doexec) { |
---|
2323 | return my_syspopen(aTHX_ cmd,mode); |
---|
2324 | } |
---|
2325 | #endif |
---|
2326 | This = (*mode == 'w'); |
---|
2327 | that = !This; |
---|
2328 | if (doexec && PL_tainting) { |
---|
2329 | taint_env(); |
---|
2330 | taint_proper("Insecure %s%s", "EXEC"); |
---|
2331 | } |
---|
2332 | if (PerlProc_pipe(p) < 0) |
---|
2333 | return Nullfp; |
---|
2334 | if (doexec && PerlProc_pipe(pp) >= 0) |
---|
2335 | did_pipes = 1; |
---|
2336 | while ((pid = (doexec?vfork():fork())) < 0) { |
---|
2337 | if (errno != EAGAIN) { |
---|
2338 | PerlLIO_close(p[This]); |
---|
2339 | if (did_pipes) { |
---|
2340 | PerlLIO_close(pp[0]); |
---|
2341 | PerlLIO_close(pp[1]); |
---|
2342 | } |
---|
2343 | if (!doexec) |
---|
2344 | Perl_croak(aTHX_ "Can't fork"); |
---|
2345 | return Nullfp; |
---|
2346 | } |
---|
2347 | sleep(5); |
---|
2348 | } |
---|
2349 | if (pid == 0) { |
---|
2350 | GV* tmpgv; |
---|
2351 | |
---|
2352 | #undef THIS |
---|
2353 | #undef THAT |
---|
2354 | #define THIS that |
---|
2355 | #define THAT This |
---|
2356 | PerlLIO_close(p[THAT]); |
---|
2357 | if (did_pipes) { |
---|
2358 | PerlLIO_close(pp[0]); |
---|
2359 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
---|
2360 | fcntl(pp[1], F_SETFD, FD_CLOEXEC); |
---|
2361 | #endif |
---|
2362 | } |
---|
2363 | if (p[THIS] != (*mode == 'r')) { |
---|
2364 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
---|
2365 | PerlLIO_close(p[THIS]); |
---|
2366 | } |
---|
2367 | #ifndef OS2 |
---|
2368 | if (doexec) { |
---|
2369 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
---|
2370 | int fd; |
---|
2371 | |
---|
2372 | #ifndef NOFILE |
---|
2373 | #define NOFILE 20 |
---|
2374 | #endif |
---|
2375 | for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) |
---|
2376 | if (fd != pp[1]) |
---|
2377 | PerlLIO_close(fd); |
---|
2378 | #endif |
---|
2379 | do_exec3(cmd,pp[1],did_pipes); /* may or may not use the shell */ |
---|
2380 | PerlProc__exit(1); |
---|
2381 | } |
---|
2382 | #endif /* defined OS2 */ |
---|
2383 | /*SUPPRESS 560*/ |
---|
2384 | if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) |
---|
2385 | sv_setiv(GvSV(tmpgv), PerlProc_getpid()); |
---|
2386 | PL_forkprocess = 0; |
---|
2387 | hv_clear(PL_pidstatus); /* we have no children */ |
---|
2388 | return Nullfp; |
---|
2389 | #undef THIS |
---|
2390 | #undef THAT |
---|
2391 | } |
---|
2392 | do_execfree(); /* free any memory malloced by child on vfork */ |
---|
2393 | PerlLIO_close(p[that]); |
---|
2394 | if (did_pipes) |
---|
2395 | PerlLIO_close(pp[1]); |
---|
2396 | if (p[that] < p[This]) { |
---|
2397 | PerlLIO_dup2(p[This], p[that]); |
---|
2398 | PerlLIO_close(p[This]); |
---|
2399 | p[This] = p[that]; |
---|
2400 | } |
---|
2401 | LOCK_FDPID_MUTEX; |
---|
2402 | sv = *av_fetch(PL_fdpid,p[This],TRUE); |
---|
2403 | UNLOCK_FDPID_MUTEX; |
---|
2404 | (void)SvUPGRADE(sv,SVt_IV); |
---|
2405 | SvIVX(sv) = pid; |
---|
2406 | PL_forkprocess = pid; |
---|
2407 | if (did_pipes && pid > 0) { |
---|
2408 | int errkid; |
---|
2409 | int n = 0, n1; |
---|
2410 | |
---|
2411 | while (n < sizeof(int)) { |
---|
2412 | n1 = PerlLIO_read(pp[0], |
---|
2413 | (void*)(((char*)&errkid)+n), |
---|
2414 | (sizeof(int)) - n); |
---|
2415 | if (n1 <= 0) |
---|
2416 | break; |
---|
2417 | n += n1; |
---|
2418 | } |
---|
2419 | PerlLIO_close(pp[0]); |
---|
2420 | did_pipes = 0; |
---|
2421 | if (n) { /* Error */ |
---|
2422 | if (n != sizeof(int)) |
---|
2423 | Perl_croak(aTHX_ "panic: kid popen errno read"); |
---|
2424 | errno = errkid; /* Propagate errno from kid */ |
---|
2425 | return Nullfp; |
---|
2426 | } |
---|
2427 | } |
---|
2428 | if (did_pipes) |
---|
2429 | PerlLIO_close(pp[0]); |
---|
2430 | return PerlIO_fdopen(p[This], mode); |
---|
2431 | } |
---|
2432 | #else |
---|
2433 | #if defined(atarist) || defined(DJGPP) |
---|
2434 | FILE *popen(); |
---|
2435 | PerlIO * |
---|
2436 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
---|
2437 | { |
---|
2438 | /* Needs work for PerlIO ! */ |
---|
2439 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
---|
2440 | PERL_FLUSHALL_FOR_CHILD; |
---|
2441 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
---|
2442 | } |
---|
2443 | #endif |
---|
2444 | |
---|
2445 | #endif /* !DOSISH */ |
---|
2446 | |
---|
2447 | #ifdef DUMP_FDS |
---|
2448 | void |
---|
2449 | Perl_dump_fds(pTHX_ char *s) |
---|
2450 | { |
---|
2451 | int fd; |
---|
2452 | struct stat tmpstatbuf; |
---|
2453 | |
---|
2454 | PerlIO_printf(Perl_debug_log,"%s", s); |
---|
2455 | for (fd = 0; fd < 32; fd++) { |
---|
2456 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
---|
2457 | PerlIO_printf(Perl_debug_log," %d",fd); |
---|
2458 | } |
---|
2459 | PerlIO_printf(Perl_debug_log,"\n"); |
---|
2460 | } |
---|
2461 | #endif /* DUMP_FDS */ |
---|
2462 | |
---|
2463 | #ifndef HAS_DUP2 |
---|
2464 | int |
---|
2465 | dup2(int oldfd, int newfd) |
---|
2466 | { |
---|
2467 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
---|
2468 | if (oldfd == newfd) |
---|
2469 | return oldfd; |
---|
2470 | PerlLIO_close(newfd); |
---|
2471 | return fcntl(oldfd, F_DUPFD, newfd); |
---|
2472 | #else |
---|
2473 | #define DUP2_MAX_FDS 256 |
---|
2474 | int fdtmp[DUP2_MAX_FDS]; |
---|
2475 | I32 fdx = 0; |
---|
2476 | int fd; |
---|
2477 | |
---|
2478 | if (oldfd == newfd) |
---|
2479 | return oldfd; |
---|
2480 | PerlLIO_close(newfd); |
---|
2481 | /* good enough for low fd's... */ |
---|
2482 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
---|
2483 | if (fdx >= DUP2_MAX_FDS) { |
---|
2484 | PerlLIO_close(fd); |
---|
2485 | fd = -1; |
---|
2486 | break; |
---|
2487 | } |
---|
2488 | fdtmp[fdx++] = fd; |
---|
2489 | } |
---|
2490 | while (fdx > 0) |
---|
2491 | PerlLIO_close(fdtmp[--fdx]); |
---|
2492 | return fd; |
---|
2493 | #endif |
---|
2494 | } |
---|
2495 | #endif |
---|
2496 | |
---|
2497 | |
---|
2498 | #ifdef HAS_SIGACTION |
---|
2499 | |
---|
2500 | Sighandler_t |
---|
2501 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
---|
2502 | { |
---|
2503 | struct sigaction act, oact; |
---|
2504 | |
---|
2505 | act.sa_handler = handler; |
---|
2506 | sigemptyset(&act.sa_mask); |
---|
2507 | act.sa_flags = 0; |
---|
2508 | #ifdef SA_RESTART |
---|
2509 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
---|
2510 | #endif |
---|
2511 | #ifdef SA_NOCLDWAIT |
---|
2512 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) |
---|
2513 | act.sa_flags |= SA_NOCLDWAIT; |
---|
2514 | #endif |
---|
2515 | if (sigaction(signo, &act, &oact) == -1) |
---|
2516 | return SIG_ERR; |
---|
2517 | else |
---|
2518 | return oact.sa_handler; |
---|
2519 | } |
---|
2520 | |
---|
2521 | Sighandler_t |
---|
2522 | Perl_rsignal_state(pTHX_ int signo) |
---|
2523 | { |
---|
2524 | struct sigaction oact; |
---|
2525 | |
---|
2526 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
---|
2527 | return SIG_ERR; |
---|
2528 | else |
---|
2529 | return oact.sa_handler; |
---|
2530 | } |
---|
2531 | |
---|
2532 | int |
---|
2533 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
---|
2534 | { |
---|
2535 | struct sigaction act; |
---|
2536 | |
---|
2537 | act.sa_handler = handler; |
---|
2538 | sigemptyset(&act.sa_mask); |
---|
2539 | act.sa_flags = 0; |
---|
2540 | #ifdef SA_RESTART |
---|
2541 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
---|
2542 | #endif |
---|
2543 | #ifdef SA_NOCLDWAIT |
---|
2544 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) |
---|
2545 | act.sa_flags |= SA_NOCLDWAIT; |
---|
2546 | #endif |
---|
2547 | return sigaction(signo, &act, save); |
---|
2548 | } |
---|
2549 | |
---|
2550 | int |
---|
2551 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
---|
2552 | { |
---|
2553 | return sigaction(signo, save, (struct sigaction *)NULL); |
---|
2554 | } |
---|
2555 | |
---|
2556 | #else /* !HAS_SIGACTION */ |
---|
2557 | |
---|
2558 | Sighandler_t |
---|
2559 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
---|
2560 | { |
---|
2561 | return PerlProc_signal(signo, handler); |
---|
2562 | } |
---|
2563 | |
---|
2564 | static int sig_trapped; |
---|
2565 | |
---|
2566 | static |
---|
2567 | Signal_t |
---|
2568 | sig_trap(int signo) |
---|
2569 | { |
---|
2570 | sig_trapped++; |
---|
2571 | } |
---|
2572 | |
---|
2573 | Sighandler_t |
---|
2574 | Perl_rsignal_state(pTHX_ int signo) |
---|
2575 | { |
---|
2576 | Sighandler_t oldsig; |
---|
2577 | |
---|
2578 | sig_trapped = 0; |
---|
2579 | oldsig = PerlProc_signal(signo, sig_trap); |
---|
2580 | PerlProc_signal(signo, oldsig); |
---|
2581 | if (sig_trapped) |
---|
2582 | PerlProc_kill(PerlProc_getpid(), signo); |
---|
2583 | return oldsig; |
---|
2584 | } |
---|
2585 | |
---|
2586 | int |
---|
2587 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
---|
2588 | { |
---|
2589 | *save = PerlProc_signal(signo, handler); |
---|
2590 | return (*save == SIG_ERR) ? -1 : 0; |
---|
2591 | } |
---|
2592 | |
---|
2593 | int |
---|
2594 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
---|
2595 | { |
---|
2596 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
---|
2597 | } |
---|
2598 | |
---|
2599 | #endif /* !HAS_SIGACTION */ |
---|
2600 | |
---|
2601 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
---|
2602 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) && !defined(MACOS_TRADITIONAL) |
---|
2603 | I32 |
---|
2604 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
---|
2605 | { |
---|
2606 | Sigsave_t hstat, istat, qstat; |
---|
2607 | int status; |
---|
2608 | SV **svp; |
---|
2609 | Pid_t pid; |
---|
2610 | Pid_t pid2; |
---|
2611 | bool close_failed; |
---|
2612 | int saved_errno; |
---|
2613 | #ifdef VMS |
---|
2614 | int saved_vaxc_errno; |
---|
2615 | #endif |
---|
2616 | #ifdef WIN32 |
---|
2617 | int saved_win32_errno; |
---|
2618 | #endif |
---|
2619 | |
---|
2620 | LOCK_FDPID_MUTEX; |
---|
2621 | svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); |
---|
2622 | UNLOCK_FDPID_MUTEX; |
---|
2623 | pid = SvIVX(*svp); |
---|
2624 | SvREFCNT_dec(*svp); |
---|
2625 | *svp = &PL_sv_undef; |
---|
2626 | #ifdef OS2 |
---|
2627 | if (pid == -1) { /* Opened by popen. */ |
---|
2628 | return my_syspclose(ptr); |
---|
2629 | } |
---|
2630 | #endif |
---|
2631 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
---|
2632 | saved_errno = errno; |
---|
2633 | #ifdef VMS |
---|
2634 | saved_vaxc_errno = vaxc$errno; |
---|
2635 | #endif |
---|
2636 | #ifdef WIN32 |
---|
2637 | saved_win32_errno = GetLastError(); |
---|
2638 | #endif |
---|
2639 | } |
---|
2640 | #ifdef UTS |
---|
2641 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
---|
2642 | #endif |
---|
2643 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
---|
2644 | rsignal_save(SIGINT, SIG_IGN, &istat); |
---|
2645 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
---|
2646 | do { |
---|
2647 | pid2 = wait4pid(pid, &status, 0); |
---|
2648 | } while (pid2 == -1 && errno == EINTR); |
---|
2649 | rsignal_restore(SIGHUP, &hstat); |
---|
2650 | rsignal_restore(SIGINT, &istat); |
---|
2651 | rsignal_restore(SIGQUIT, &qstat); |
---|
2652 | if (close_failed) { |
---|
2653 | SETERRNO(saved_errno, saved_vaxc_errno); |
---|
2654 | return -1; |
---|
2655 | } |
---|
2656 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
---|
2657 | } |
---|
2658 | #endif /* !DOSISH */ |
---|
2659 | |
---|
2660 | #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL) |
---|
2661 | I32 |
---|
2662 | Perl_wait4pid(pTHX_ Pid_t pid, int *statusp, int flags) |
---|
2663 | { |
---|
2664 | SV *sv; |
---|
2665 | SV** svp; |
---|
2666 | char spid[TYPE_CHARS(int)]; |
---|
2667 | |
---|
2668 | if (!pid) |
---|
2669 | return -1; |
---|
2670 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) |
---|
2671 | if (pid > 0) { |
---|
2672 | sprintf(spid, "%"IVdf, (IV)pid); |
---|
2673 | svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); |
---|
2674 | if (svp && *svp != &PL_sv_undef) { |
---|
2675 | *statusp = SvIVX(*svp); |
---|
2676 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
---|
2677 | return pid; |
---|
2678 | } |
---|
2679 | } |
---|
2680 | else { |
---|
2681 | HE *entry; |
---|
2682 | |
---|
2683 | hv_iterinit(PL_pidstatus); |
---|
2684 | if ((entry = hv_iternext(PL_pidstatus))) { |
---|
2685 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
---|
2686 | sv = hv_iterval(PL_pidstatus,entry); |
---|
2687 | *statusp = SvIVX(sv); |
---|
2688 | sprintf(spid, "%"IVdf, (IV)pid); |
---|
2689 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
---|
2690 | return pid; |
---|
2691 | } |
---|
2692 | } |
---|
2693 | #endif |
---|
2694 | #ifdef HAS_WAITPID |
---|
2695 | # ifdef HAS_WAITPID_RUNTIME |
---|
2696 | if (!HAS_WAITPID_RUNTIME) |
---|
2697 | goto hard_way; |
---|
2698 | # endif |
---|
2699 | return PerlProc_waitpid(pid,statusp,flags); |
---|
2700 | #endif |
---|
2701 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) |
---|
2702 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
---|
2703 | #endif |
---|
2704 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) |
---|
2705 | hard_way: |
---|
2706 | { |
---|
2707 | I32 result; |
---|
2708 | if (flags) |
---|
2709 | Perl_croak(aTHX_ "Can't do waitpid with flags"); |
---|
2710 | else { |
---|
2711 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
---|
2712 | pidgone(result,*statusp); |
---|
2713 | if (result < 0) |
---|
2714 | *statusp = -1; |
---|
2715 | } |
---|
2716 | return result; |
---|
2717 | } |
---|
2718 | #endif |
---|
2719 | } |
---|
2720 | #endif /* !DOSISH || OS2 || WIN32 */ |
---|
2721 | |
---|
2722 | void |
---|
2723 | /*SUPPRESS 590*/ |
---|
2724 | Perl_pidgone(pTHX_ Pid_t pid, int status) |
---|
2725 | { |
---|
2726 | register SV *sv; |
---|
2727 | char spid[TYPE_CHARS(int)]; |
---|
2728 | |
---|
2729 | sprintf(spid, "%"IVdf, (IV)pid); |
---|
2730 | sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); |
---|
2731 | (void)SvUPGRADE(sv,SVt_IV); |
---|
2732 | SvIVX(sv) = status; |
---|
2733 | return; |
---|
2734 | } |
---|
2735 | |
---|
2736 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
---|
2737 | int pclose(); |
---|
2738 | #ifdef HAS_FORK |
---|
2739 | int /* Cannot prototype with I32 |
---|
2740 | in os2ish.h. */ |
---|
2741 | my_syspclose(PerlIO *ptr) |
---|
2742 | #else |
---|
2743 | I32 |
---|
2744 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
---|
2745 | #endif |
---|
2746 | { |
---|
2747 | /* Needs work for PerlIO ! */ |
---|
2748 | FILE *f = PerlIO_findFILE(ptr); |
---|
2749 | I32 result = pclose(f); |
---|
2750 | #if defined(DJGPP) |
---|
2751 | result = (result << 8) & 0xff00; |
---|
2752 | #endif |
---|
2753 | PerlIO_releaseFILE(ptr,f); |
---|
2754 | return result; |
---|
2755 | } |
---|
2756 | #endif |
---|
2757 | |
---|
2758 | void |
---|
2759 | Perl_repeatcpy(pTHX_ register char *to, register const char *from, I32 len, register I32 count) |
---|
2760 | { |
---|
2761 | register I32 todo; |
---|
2762 | register const char *frombase = from; |
---|
2763 | |
---|
2764 | if (len == 1) { |
---|
2765 | register const char c = *from; |
---|
2766 | while (count-- > 0) |
---|
2767 | *to++ = c; |
---|
2768 | return; |
---|
2769 | } |
---|
2770 | while (count-- > 0) { |
---|
2771 | for (todo = len; todo > 0; todo--) { |
---|
2772 | *to++ = *from++; |
---|
2773 | } |
---|
2774 | from = frombase; |
---|
2775 | } |
---|
2776 | } |
---|
2777 | |
---|
2778 | U32 |
---|
2779 | Perl_cast_ulong(pTHX_ NV f) |
---|
2780 | { |
---|
2781 | long along; |
---|
2782 | |
---|
2783 | #if CASTFLAGS & 2 |
---|
2784 | # define BIGDOUBLE 2147483648.0 |
---|
2785 | if (f >= BIGDOUBLE) |
---|
2786 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
---|
2787 | #endif |
---|
2788 | if (f >= 0.0) |
---|
2789 | return (unsigned long)f; |
---|
2790 | along = (long)f; |
---|
2791 | return (unsigned long)along; |
---|
2792 | } |
---|
2793 | # undef BIGDOUBLE |
---|
2794 | |
---|
2795 | /* Unfortunately, on some systems the cast_uv() function doesn't |
---|
2796 | work with the system-supplied definition of ULONG_MAX. The |
---|
2797 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
---|
2798 | problem with the compiler constant folding. |
---|
2799 | |
---|
2800 | In any case, this workaround should be fine on any two's complement |
---|
2801 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
---|
2802 | ccflags. |
---|
2803 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
---|
2804 | */ |
---|
2805 | |
---|
2806 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
---|
2807 | of LONG_(MIN/MAX). |
---|
2808 | -- Kenneth Albanowski <kjahds@kjahds.com> |
---|
2809 | */ |
---|
2810 | |
---|
2811 | #ifndef MY_UV_MAX |
---|
2812 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
---|
2813 | #endif |
---|
2814 | |
---|
2815 | I32 |
---|
2816 | Perl_cast_i32(pTHX_ NV f) |
---|
2817 | { |
---|
2818 | if (f >= I32_MAX) |
---|
2819 | return (I32) I32_MAX; |
---|
2820 | if (f <= I32_MIN) |
---|
2821 | return (I32) I32_MIN; |
---|
2822 | return (I32) f; |
---|
2823 | } |
---|
2824 | |
---|
2825 | IV |
---|
2826 | Perl_cast_iv(pTHX_ NV f) |
---|
2827 | { |
---|
2828 | if (f >= IV_MAX) { |
---|
2829 | UV uv; |
---|
2830 | |
---|
2831 | if (f >= (NV)UV_MAX) |
---|
2832 | return (IV) UV_MAX; |
---|
2833 | uv = (UV) f; |
---|
2834 | return (IV)uv; |
---|
2835 | } |
---|
2836 | if (f <= IV_MIN) |
---|
2837 | return (IV) IV_MIN; |
---|
2838 | return (IV) f; |
---|
2839 | } |
---|
2840 | |
---|
2841 | UV |
---|
2842 | Perl_cast_uv(pTHX_ NV f) |
---|
2843 | { |
---|
2844 | if (f >= MY_UV_MAX) |
---|
2845 | return (UV) MY_UV_MAX; |
---|
2846 | if (f < 0) { |
---|
2847 | IV iv; |
---|
2848 | |
---|
2849 | if (f < IV_MIN) |
---|
2850 | return (UV)IV_MIN; |
---|
2851 | iv = (IV) f; |
---|
2852 | return (UV) iv; |
---|
2853 | } |
---|
2854 | return (UV) f; |
---|
2855 | } |
---|
2856 | |
---|
2857 | #ifndef HAS_RENAME |
---|
2858 | I32 |
---|
2859 | Perl_same_dirent(pTHX_ char *a, char *b) |
---|
2860 | { |
---|
2861 | char *fa = strrchr(a,'/'); |
---|
2862 | char *fb = strrchr(b,'/'); |
---|
2863 | struct stat tmpstatbuf1; |
---|
2864 | struct stat tmpstatbuf2; |
---|
2865 | SV *tmpsv = sv_newmortal(); |
---|
2866 | |
---|
2867 | if (fa) |
---|
2868 | fa++; |
---|
2869 | else |
---|
2870 | fa = a; |
---|
2871 | if (fb) |
---|
2872 | fb++; |
---|
2873 | else |
---|
2874 | fb = b; |
---|
2875 | if (strNE(a,b)) |
---|
2876 | return FALSE; |
---|
2877 | if (fa == a) |
---|
2878 | sv_setpv(tmpsv, "."); |
---|
2879 | else |
---|
2880 | sv_setpvn(tmpsv, a, fa - a); |
---|
2881 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
---|
2882 | return FALSE; |
---|
2883 | if (fb == b) |
---|
2884 | sv_setpv(tmpsv, "."); |
---|
2885 | else |
---|
2886 | sv_setpvn(tmpsv, b, fb - b); |
---|
2887 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
---|
2888 | return FALSE; |
---|
2889 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
---|
2890 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
---|
2891 | } |
---|
2892 | #endif /* !HAS_RENAME */ |
---|
2893 | |
---|
2894 | NV |
---|
2895 | Perl_scan_bin(pTHX_ char *start, STRLEN len, STRLEN *retlen) |
---|
2896 | { |
---|
2897 | register char *s = start; |
---|
2898 | register NV rnv = 0.0; |
---|
2899 | register UV ruv = 0; |
---|
2900 | register bool seenb = FALSE; |
---|
2901 | register bool overflowed = FALSE; |
---|
2902 | |
---|
2903 | for (; len-- && *s; s++) { |
---|
2904 | if (!(*s == '0' || *s == '1')) { |
---|
2905 | if (*s == '_' && len && *retlen |
---|
2906 | && (s[1] == '0' || s[1] == '1')) |
---|
2907 | { |
---|
2908 | --len; |
---|
2909 | ++s; |
---|
2910 | } |
---|
2911 | else if (seenb == FALSE && *s == 'b' && ruv == 0) { |
---|
2912 | /* Disallow 0bbb0b0bbb... */ |
---|
2913 | seenb = TRUE; |
---|
2914 | continue; |
---|
2915 | } |
---|
2916 | else { |
---|
2917 | if (ckWARN(WARN_DIGIT)) |
---|
2918 | Perl_warner(aTHX_ WARN_DIGIT, |
---|
2919 | "Illegal binary digit '%c' ignored", *s); |
---|
2920 | break; |
---|
2921 | } |
---|
2922 | } |
---|
2923 | if (!overflowed) { |
---|
2924 | register UV xuv = ruv << 1; |
---|
2925 | |
---|
2926 | if ((xuv >> 1) != ruv) { |
---|
2927 | overflowed = TRUE; |
---|
2928 | rnv = (NV) ruv; |
---|
2929 | if (ckWARN_d(WARN_OVERFLOW)) |
---|
2930 | Perl_warner(aTHX_ WARN_OVERFLOW, |
---|
2931 | "Integer overflow in binary number"); |
---|
2932 | } |
---|
2933 | else |
---|
2934 | ruv = xuv | (*s - '0'); |
---|
2935 | } |
---|
2936 | if (overflowed) { |
---|
2937 | rnv *= 2; |
---|
2938 | /* If an NV has not enough bits in its mantissa to |
---|
2939 | * represent an UV this summing of small low-order numbers |
---|
2940 | * is a waste of time (because the NV cannot preserve |
---|
2941 | * the low-order bits anyway): we could just remember when |
---|
2942 | * did we overflow and in the end just multiply rnv by the |
---|
2943 | * right amount. */ |
---|
2944 | rnv += (*s - '0'); |
---|
2945 | } |
---|
2946 | } |
---|
2947 | if (!overflowed) |
---|
2948 | rnv = (NV) ruv; |
---|
2949 | if ( ( overflowed && rnv > 4294967295.0) |
---|
2950 | #if UVSIZE > 4 |
---|
2951 | || (!overflowed && ruv > 0xffffffff ) |
---|
2952 | #endif |
---|
2953 | ) { |
---|
2954 | if (ckWARN(WARN_PORTABLE)) |
---|
2955 | Perl_warner(aTHX_ WARN_PORTABLE, |
---|
2956 | "Binary number > 0b11111111111111111111111111111111 non-portable"); |
---|
2957 | } |
---|
2958 | *retlen = s - start; |
---|
2959 | return rnv; |
---|
2960 | } |
---|
2961 | |
---|
2962 | NV |
---|
2963 | Perl_scan_oct(pTHX_ char *start, STRLEN len, STRLEN *retlen) |
---|
2964 | { |
---|
2965 | register char *s = start; |
---|
2966 | register NV rnv = 0.0; |
---|
2967 | register UV ruv = 0; |
---|
2968 | register bool overflowed = FALSE; |
---|
2969 | |
---|
2970 | for (; len-- && *s; s++) { |
---|
2971 | if (!(*s >= '0' && *s <= '7')) { |
---|
2972 | if (*s == '_' && len && *retlen |
---|
2973 | && (s[1] >= '0' && s[1] <= '7')) |
---|
2974 | { |
---|
2975 | --len; |
---|
2976 | ++s; |
---|
2977 | } |
---|
2978 | else { |
---|
2979 | /* Allow \octal to work the DWIM way (that is, stop scanning |
---|
2980 | * as soon as non-octal characters are seen, complain only iff |
---|
2981 | * someone seems to want to use the digits eight and nine). */ |
---|
2982 | if (*s == '8' || *s == '9') { |
---|
2983 | if (ckWARN(WARN_DIGIT)) |
---|
2984 | Perl_warner(aTHX_ WARN_DIGIT, |
---|
2985 | "Illegal octal digit '%c' ignored", *s); |
---|
2986 | } |
---|
2987 | break; |
---|
2988 | } |
---|
2989 | } |
---|
2990 | if (!overflowed) { |
---|
2991 | register UV xuv = ruv << 3; |
---|
2992 | |
---|
2993 | if ((xuv >> 3) != ruv) { |
---|
2994 | overflowed = TRUE; |
---|
2995 | rnv = (NV) ruv; |
---|
2996 | if (ckWARN_d(WARN_OVERFLOW)) |
---|
2997 | Perl_warner(aTHX_ WARN_OVERFLOW, |
---|
2998 | "Integer overflow in octal number"); |
---|
2999 | } |
---|
3000 | else |
---|
3001 | ruv = xuv | (*s - '0'); |
---|
3002 | } |
---|
3003 | if (overflowed) { |
---|
3004 | rnv *= 8.0; |
---|
3005 | /* If an NV has not enough bits in its mantissa to |
---|
3006 | * represent an UV this summing of small low-order numbers |
---|
3007 | * is a waste of time (because the NV cannot preserve |
---|
3008 | * the low-order bits anyway): we could just remember when |
---|
3009 | * did we overflow and in the end just multiply rnv by the |
---|
3010 | * right amount of 8-tuples. */ |
---|
3011 | rnv += (NV)(*s - '0'); |
---|
3012 | } |
---|
3013 | } |
---|
3014 | if (!overflowed) |
---|
3015 | rnv = (NV) ruv; |
---|
3016 | if ( ( overflowed && rnv > 4294967295.0) |
---|
3017 | #if UVSIZE > 4 |
---|
3018 | || (!overflowed && ruv > 0xffffffff ) |
---|
3019 | #endif |
---|
3020 | ) { |
---|
3021 | if (ckWARN(WARN_PORTABLE)) |
---|
3022 | Perl_warner(aTHX_ WARN_PORTABLE, |
---|
3023 | "Octal number > 037777777777 non-portable"); |
---|
3024 | } |
---|
3025 | *retlen = s - start; |
---|
3026 | return rnv; |
---|
3027 | } |
---|
3028 | |
---|
3029 | NV |
---|
3030 | Perl_scan_hex(pTHX_ char *start, STRLEN len, STRLEN *retlen) |
---|
3031 | { |
---|
3032 | register char *s = start; |
---|
3033 | register NV rnv = 0.0; |
---|
3034 | register UV ruv = 0; |
---|
3035 | register bool seenx = FALSE; |
---|
3036 | register bool overflowed = FALSE; |
---|
3037 | char *hexdigit; |
---|
3038 | |
---|
3039 | for (; len-- && *s; s++) { |
---|
3040 | hexdigit = strchr((char *) PL_hexdigit, *s); |
---|
3041 | if (!hexdigit) { |
---|
3042 | if (*s == '_' && len && *retlen && s[1] |
---|
3043 | && (hexdigit = strchr((char *) PL_hexdigit, s[1]))) |
---|
3044 | { |
---|
3045 | --len; |
---|
3046 | ++s; |
---|
3047 | } |
---|
3048 | else if (seenx == FALSE && *s == 'x' && ruv == 0) { |
---|
3049 | /* Disallow 0xxx0x0xxx... */ |
---|
3050 | seenx = TRUE; |
---|
3051 | continue; |
---|
3052 | } |
---|
3053 | else { |
---|
3054 | if (ckWARN(WARN_DIGIT)) |
---|
3055 | Perl_warner(aTHX_ WARN_DIGIT, |
---|
3056 | "Illegal hexadecimal digit '%c' ignored", *s); |
---|
3057 | break; |
---|
3058 | } |
---|
3059 | } |
---|
3060 | if (!overflowed) { |
---|
3061 | register UV xuv = ruv << 4; |
---|
3062 | |
---|
3063 | if ((xuv >> 4) != ruv) { |
---|
3064 | overflowed = TRUE; |
---|
3065 | rnv = (NV) ruv; |
---|
3066 | if (ckWARN_d(WARN_OVERFLOW)) |
---|
3067 | Perl_warner(aTHX_ WARN_OVERFLOW, |
---|
3068 | "Integer overflow in hexadecimal number"); |
---|
3069 | } |
---|
3070 | else |
---|
3071 | ruv = xuv | ((hexdigit - PL_hexdigit) & 15); |
---|
3072 | } |
---|
3073 | if (overflowed) { |
---|
3074 | rnv *= 16.0; |
---|
3075 | /* If an NV has not enough bits in its mantissa to |
---|
3076 | * represent an UV this summing of small low-order numbers |
---|
3077 | * is a waste of time (because the NV cannot preserve |
---|
3078 | * the low-order bits anyway): we could just remember when |
---|
3079 | * did we overflow and in the end just multiply rnv by the |
---|
3080 | * right amount of 16-tuples. */ |
---|
3081 | rnv += (NV)((hexdigit - PL_hexdigit) & 15); |
---|
3082 | } |
---|
3083 | } |
---|
3084 | if (!overflowed) |
---|
3085 | rnv = (NV) ruv; |
---|
3086 | if ( ( overflowed && rnv > 4294967295.0) |
---|
3087 | #if UVSIZE > 4 |
---|
3088 | || (!overflowed && ruv > 0xffffffff ) |
---|
3089 | #endif |
---|
3090 | ) { |
---|
3091 | if (ckWARN(WARN_PORTABLE)) |
---|
3092 | Perl_warner(aTHX_ WARN_PORTABLE, |
---|
3093 | "Hexadecimal number > 0xffffffff non-portable"); |
---|
3094 | } |
---|
3095 | *retlen = s - start; |
---|
3096 | return rnv; |
---|
3097 | } |
---|
3098 | |
---|
3099 | char* |
---|
3100 | Perl_find_script(pTHX_ char *scriptname, bool dosearch, char **search_ext, I32 flags) |
---|
3101 | { |
---|
3102 | char *xfound = Nullch; |
---|
3103 | char *xfailed = Nullch; |
---|
3104 | char tmpbuf[MAXPATHLEN]; |
---|
3105 | register char *s; |
---|
3106 | I32 len; |
---|
3107 | int retval; |
---|
3108 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
---|
3109 | # define SEARCH_EXTS ".bat", ".cmd", NULL |
---|
3110 | # define MAX_EXT_LEN 4 |
---|
3111 | #endif |
---|
3112 | #ifdef OS2 |
---|
3113 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL |
---|
3114 | # define MAX_EXT_LEN 4 |
---|
3115 | #endif |
---|
3116 | #ifdef VMS |
---|
3117 | # define SEARCH_EXTS ".pl", ".com", NULL |
---|
3118 | # define MAX_EXT_LEN 4 |
---|
3119 | #endif |
---|
3120 | /* additional extensions to try in each dir if scriptname not found */ |
---|
3121 | #ifdef SEARCH_EXTS |
---|
3122 | char *exts[] = { SEARCH_EXTS }; |
---|
3123 | char **ext = search_ext ? search_ext : exts; |
---|
3124 | int extidx = 0, i = 0; |
---|
3125 | char *curext = Nullch; |
---|
3126 | #else |
---|
3127 | # define MAX_EXT_LEN 0 |
---|
3128 | #endif |
---|
3129 | |
---|
3130 | /* |
---|
3131 | * If dosearch is true and if scriptname does not contain path |
---|
3132 | * delimiters, search the PATH for scriptname. |
---|
3133 | * |
---|
3134 | * If SEARCH_EXTS is also defined, will look for each |
---|
3135 | * scriptname{SEARCH_EXTS} whenever scriptname is not found |
---|
3136 | * while searching the PATH. |
---|
3137 | * |
---|
3138 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search |
---|
3139 | * proceeds as follows: |
---|
3140 | * If DOSISH or VMSISH: |
---|
3141 | * + look for ./scriptname{,.foo,.bar} |
---|
3142 | * + search the PATH for scriptname{,.foo,.bar} |
---|
3143 | * |
---|
3144 | * If !DOSISH: |
---|
3145 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note |
---|
3146 | * this will not look in '.' if it's not in the PATH) |
---|
3147 | */ |
---|
3148 | tmpbuf[0] = '\0'; |
---|
3149 | |
---|
3150 | #ifdef VMS |
---|
3151 | # ifdef ALWAYS_DEFTYPES |
---|
3152 | len = strlen(scriptname); |
---|
3153 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { |
---|
3154 | int hasdir, idx = 0, deftypes = 1; |
---|
3155 | bool seen_dot = 1; |
---|
3156 | |
---|
3157 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; |
---|
3158 | # else |
---|
3159 | if (dosearch) { |
---|
3160 | int hasdir, idx = 0, deftypes = 1; |
---|
3161 | bool seen_dot = 1; |
---|
3162 | |
---|
3163 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
---|
3164 | # endif |
---|
3165 | /* The first time through, just add SEARCH_EXTS to whatever we |
---|
3166 | * already have, so we can check for default file types. */ |
---|
3167 | while (deftypes || |
---|
3168 | (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) ) |
---|
3169 | { |
---|
3170 | if (deftypes) { |
---|
3171 | deftypes = 0; |
---|
3172 | *tmpbuf = '\0'; |
---|
3173 | } |
---|
3174 | if ((strlen(tmpbuf) + strlen(scriptname) |
---|
3175 | + MAX_EXT_LEN) >= sizeof tmpbuf) |
---|
3176 | continue; /* don't search dir with too-long name */ |
---|
3177 | strcat(tmpbuf, scriptname); |
---|
3178 | #else /* !VMS */ |
---|
3179 | |
---|
3180 | #ifdef DOSISH |
---|
3181 | if (strEQ(scriptname, "-")) |
---|
3182 | dosearch = 0; |
---|
3183 | if (dosearch) { /* Look in '.' first. */ |
---|
3184 | char *cur = scriptname; |
---|
3185 | #ifdef SEARCH_EXTS |
---|
3186 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ |
---|
3187 | while (ext[i]) |
---|
3188 | if (strEQ(ext[i++],curext)) { |
---|
3189 | extidx = -1; /* already has an ext */ |
---|
3190 | break; |
---|
3191 | } |
---|
3192 | do { |
---|
3193 | #endif |
---|
3194 | DEBUG_p(PerlIO_printf(Perl_debug_log, |
---|
3195 | "Looking for %s\n",cur)); |
---|
3196 | if (PerlLIO_stat(cur,&PL_statbuf) >= 0 |
---|
3197 | && !S_ISDIR(PL_statbuf.st_mode)) { |
---|
3198 | dosearch = 0; |
---|
3199 | scriptname = cur; |
---|
3200 | #ifdef SEARCH_EXTS |
---|
3201 | break; |
---|
3202 | #endif |
---|
3203 | } |
---|
3204 | #ifdef SEARCH_EXTS |
---|
3205 | if (cur == scriptname) { |
---|
3206 | len = strlen(scriptname); |
---|
3207 | if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) |
---|
3208 | break; |
---|
3209 | cur = strcpy(tmpbuf, scriptname); |
---|
3210 | } |
---|
3211 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ |
---|
3212 | && strcpy(tmpbuf+len, ext[extidx++])); |
---|
3213 | #endif |
---|
3214 | } |
---|
3215 | #endif |
---|
3216 | |
---|
3217 | #ifdef MACOS_TRADITIONAL |
---|
3218 | if (dosearch && !strchr(scriptname, ':') && |
---|
3219 | (s = PerlEnv_getenv("Commands"))) |
---|
3220 | #else |
---|
3221 | if (dosearch && !strchr(scriptname, '/') |
---|
3222 | #ifdef DOSISH |
---|
3223 | && !strchr(scriptname, '\\') |
---|
3224 | #endif |
---|
3225 | && (s = PerlEnv_getenv("PATH"))) |
---|
3226 | #endif |
---|
3227 | { |
---|
3228 | bool seen_dot = 0; |
---|
3229 | |
---|
3230 | PL_bufend = s + strlen(s); |
---|
3231 | while (s < PL_bufend) { |
---|
3232 | #ifdef MACOS_TRADITIONAL |
---|
3233 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
---|
3234 | ',', |
---|
3235 | &len); |
---|
3236 | #else |
---|
3237 | #if defined(atarist) || defined(DOSISH) |
---|
3238 | for (len = 0; *s |
---|
3239 | # ifdef atarist |
---|
3240 | && *s != ',' |
---|
3241 | # endif |
---|
3242 | && *s != ';'; len++, s++) { |
---|
3243 | if (len < sizeof tmpbuf) |
---|
3244 | tmpbuf[len] = *s; |
---|
3245 | } |
---|
3246 | if (len < sizeof tmpbuf) |
---|
3247 | tmpbuf[len] = '\0'; |
---|
3248 | #else /* ! (atarist || DOSISH) */ |
---|
3249 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
---|
3250 | ':', |
---|
3251 | &len); |
---|
3252 | #endif /* ! (atarist || DOSISH) */ |
---|
3253 | #endif /* MACOS_TRADITIONAL */ |
---|
3254 | if (s < PL_bufend) |
---|
3255 | s++; |
---|
3256 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) |
---|
3257 | continue; /* don't search dir with too-long name */ |
---|
3258 | #ifdef MACOS_TRADITIONAL |
---|
3259 | if (len && tmpbuf[len - 1] != ':') |
---|
3260 | tmpbuf[len++] = ':'; |
---|
3261 | #else |
---|
3262 | if (len |
---|
3263 | #if defined(atarist) || defined(__MINT__) || defined(DOSISH) |
---|
3264 | && tmpbuf[len - 1] != '/' |
---|
3265 | && tmpbuf[len - 1] != '\\' |
---|
3266 | #endif |
---|
3267 | ) |
---|
3268 | tmpbuf[len++] = '/'; |
---|
3269 | if (len == 2 && tmpbuf[0] == '.') |
---|
3270 | seen_dot = 1; |
---|
3271 | #endif |
---|
3272 | (void)strcpy(tmpbuf + len, scriptname); |
---|
3273 | #endif /* !VMS */ |
---|
3274 | |
---|
3275 | #ifdef SEARCH_EXTS |
---|
3276 | len = strlen(tmpbuf); |
---|
3277 | if (extidx > 0) /* reset after previous loop */ |
---|
3278 | extidx = 0; |
---|
3279 | do { |
---|
3280 | #endif |
---|
3281 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); |
---|
3282 | retval = PerlLIO_stat(tmpbuf,&PL_statbuf); |
---|
3283 | if (S_ISDIR(PL_statbuf.st_mode)) { |
---|
3284 | retval = -1; |
---|
3285 | } |
---|
3286 | #ifdef SEARCH_EXTS |
---|
3287 | } while ( retval < 0 /* not there */ |
---|
3288 | && extidx>=0 && ext[extidx] /* try an extension? */ |
---|
3289 | && strcpy(tmpbuf+len, ext[extidx++]) |
---|
3290 | ); |
---|
3291 | #endif |
---|
3292 | if (retval < 0) |
---|
3293 | continue; |
---|
3294 | if (S_ISREG(PL_statbuf.st_mode) |
---|
3295 | && cando(S_IRUSR,TRUE,&PL_statbuf) |
---|
3296 | #if !defined(DOSISH) && !defined(MACOS_TRADITIONAL) |
---|
3297 | && cando(S_IXUSR,TRUE,&PL_statbuf) |
---|
3298 | #endif |
---|
3299 | ) |
---|
3300 | { |
---|
3301 | xfound = tmpbuf; /* bingo! */ |
---|
3302 | break; |
---|
3303 | } |
---|
3304 | if (!xfailed) |
---|
3305 | xfailed = savepv(tmpbuf); |
---|
3306 | } |
---|
3307 | #ifndef DOSISH |
---|
3308 | if (!xfound && !seen_dot && !xfailed && |
---|
3309 | (PerlLIO_stat(scriptname,&PL_statbuf) < 0 |
---|
3310 | || S_ISDIR(PL_statbuf.st_mode))) |
---|
3311 | #endif |
---|
3312 | seen_dot = 1; /* Disable message. */ |
---|
3313 | if (!xfound) { |
---|
3314 | if (flags & 1) { /* do or die? */ |
---|
3315 | Perl_croak(aTHX_ "Can't %s %s%s%s", |
---|
3316 | (xfailed ? "execute" : "find"), |
---|
3317 | (xfailed ? xfailed : scriptname), |
---|
3318 | (xfailed ? "" : " on PATH"), |
---|
3319 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); |
---|
3320 | } |
---|
3321 | scriptname = Nullch; |
---|
3322 | } |
---|
3323 | if (xfailed) |
---|
3324 | Safefree(xfailed); |
---|
3325 | scriptname = xfound; |
---|
3326 | } |
---|
3327 | return (scriptname ? savepv(scriptname) : Nullch); |
---|
3328 | } |
---|
3329 | |
---|
3330 | #ifndef PERL_GET_CONTEXT_DEFINED |
---|
3331 | |
---|
3332 | void * |
---|
3333 | Perl_get_context(void) |
---|
3334 | { |
---|
3335 | #if defined(USE_THREADS) || defined(USE_ITHREADS) |
---|
3336 | # ifdef OLD_PTHREADS_API |
---|
3337 | pthread_addr_t t; |
---|
3338 | if (pthread_getspecific(PL_thr_key, &t)) |
---|
3339 | Perl_croak_nocontext("panic: pthread_getspecific"); |
---|
3340 | return (void*)t; |
---|
3341 | # else |
---|
3342 | # ifdef I_MACH_CTHREADS |
---|
3343 | return (void*)cthread_data(cthread_self()); |
---|
3344 | # else |
---|
3345 | return (void*)pthread_getspecific(PL_thr_key); |
---|
3346 | # endif |
---|
3347 | # endif |
---|
3348 | #else |
---|
3349 | return (void*)NULL; |
---|
3350 | #endif |
---|
3351 | } |
---|
3352 | |
---|
3353 | void |
---|
3354 | Perl_set_context(void *t) |
---|
3355 | { |
---|
3356 | #if defined(USE_THREADS) || defined(USE_ITHREADS) |
---|
3357 | # ifdef I_MACH_CTHREADS |
---|
3358 | cthread_set_data(cthread_self(), t); |
---|
3359 | # else |
---|
3360 | if (pthread_setspecific(PL_thr_key, t)) |
---|
3361 | Perl_croak_nocontext("panic: pthread_setspecific"); |
---|
3362 | # endif |
---|
3363 | #endif |
---|
3364 | } |
---|
3365 | |
---|
3366 | #endif /* !PERL_GET_CONTEXT_DEFINED */ |
---|
3367 | |
---|
3368 | #ifdef USE_THREADS |
---|
3369 | |
---|
3370 | #ifdef FAKE_THREADS |
---|
3371 | /* Very simplistic scheduler for now */ |
---|
3372 | void |
---|
3373 | schedule(void) |
---|
3374 | { |
---|
3375 | thr = thr->i.next_run; |
---|
3376 | } |
---|
3377 | |
---|
3378 | void |
---|
3379 | Perl_cond_init(pTHX_ perl_cond *cp) |
---|
3380 | { |
---|
3381 | *cp = 0; |
---|
3382 | } |
---|
3383 | |
---|
3384 | void |
---|
3385 | Perl_cond_signal(pTHX_ perl_cond *cp) |
---|
3386 | { |
---|
3387 | perl_os_thread t; |
---|
3388 | perl_cond cond = *cp; |
---|
3389 | |
---|
3390 | if (!cond) |
---|
3391 | return; |
---|
3392 | t = cond->thread; |
---|
3393 | /* Insert t in the runnable queue just ahead of us */ |
---|
3394 | t->i.next_run = thr->i.next_run; |
---|
3395 | thr->i.next_run->i.prev_run = t; |
---|
3396 | t->i.prev_run = thr; |
---|
3397 | thr->i.next_run = t; |
---|
3398 | thr->i.wait_queue = 0; |
---|
3399 | /* Remove from the wait queue */ |
---|
3400 | *cp = cond->next; |
---|
3401 | Safefree(cond); |
---|
3402 | } |
---|
3403 | |
---|
3404 | void |
---|
3405 | Perl_cond_broadcast(pTHX_ perl_cond *cp) |
---|
3406 | { |
---|
3407 | perl_os_thread t; |
---|
3408 | perl_cond cond, cond_next; |
---|
3409 | |
---|
3410 | for (cond = *cp; cond; cond = cond_next) { |
---|
3411 | t = cond->thread; |
---|
3412 | /* Insert t in the runnable queue just ahead of us */ |
---|
3413 | t->i.next_run = thr->i.next_run; |
---|
3414 | thr->i.next_run->i.prev_run = t; |
---|
3415 | t->i.prev_run = thr; |
---|
3416 | thr->i.next_run = t; |
---|
3417 | thr->i.wait_queue = 0; |
---|
3418 | /* Remove from the wait queue */ |
---|
3419 | cond_next = cond->next; |
---|
3420 | Safefree(cond); |
---|
3421 | } |
---|
3422 | *cp = 0; |
---|
3423 | } |
---|
3424 | |
---|
3425 | void |
---|
3426 | Perl_cond_wait(pTHX_ perl_cond *cp) |
---|
3427 | { |
---|
3428 | perl_cond cond; |
---|
3429 | |
---|
3430 | if (thr->i.next_run == thr) |
---|
3431 | Perl_croak(aTHX_ "panic: perl_cond_wait called by last runnable thread"); |
---|
3432 | |
---|
3433 | New(666, cond, 1, struct perl_wait_queue); |
---|
3434 | cond->thread = thr; |
---|
3435 | cond->next = *cp; |
---|
3436 | *cp = cond; |
---|
3437 | thr->i.wait_queue = cond; |
---|
3438 | /* Remove ourselves from runnable queue */ |
---|
3439 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
---|
3440 | thr->i.prev_run->i.next_run = thr->i.next_run; |
---|
3441 | } |
---|
3442 | #endif /* FAKE_THREADS */ |
---|
3443 | |
---|
3444 | MAGIC * |
---|
3445 | Perl_condpair_magic(pTHX_ SV *sv) |
---|
3446 | { |
---|
3447 | MAGIC *mg; |
---|
3448 | |
---|
3449 | SvUPGRADE(sv, SVt_PVMG); |
---|
3450 | mg = mg_find(sv, 'm'); |
---|
3451 | if (!mg) { |
---|
3452 | condpair_t *cp; |
---|
3453 | |
---|
3454 | New(53, cp, 1, condpair_t); |
---|
3455 | MUTEX_INIT(&cp->mutex); |
---|
3456 | COND_INIT(&cp->owner_cond); |
---|
3457 | COND_INIT(&cp->cond); |
---|
3458 | cp->owner = 0; |
---|
3459 | LOCK_CRED_MUTEX; /* XXX need separate mutex? */ |
---|
3460 | mg = mg_find(sv, 'm'); |
---|
3461 | if (mg) { |
---|
3462 | /* someone else beat us to initialising it */ |
---|
3463 | UNLOCK_CRED_MUTEX; /* XXX need separate mutex? */ |
---|
3464 | MUTEX_DESTROY(&cp->mutex); |
---|
3465 | COND_DESTROY(&cp->owner_cond); |
---|
3466 | COND_DESTROY(&cp->cond); |
---|
3467 | Safefree(cp); |
---|
3468 | } |
---|
3469 | else { |
---|
3470 | sv_magic(sv, Nullsv, 'm', 0, 0); |
---|
3471 | mg = SvMAGIC(sv); |
---|
3472 | mg->mg_ptr = (char *)cp; |
---|
3473 | mg->mg_len = sizeof(cp); |
---|
3474 | UNLOCK_CRED_MUTEX; /* XXX need separate mutex? */ |
---|
3475 | DEBUG_S(WITH_THR(PerlIO_printf(Perl_debug_log, |
---|
3476 | "%p: condpair_magic %p\n", thr, sv));) |
---|
3477 | } |
---|
3478 | } |
---|
3479 | return mg; |
---|
3480 | } |
---|
3481 | |
---|
3482 | SV * |
---|
3483 | Perl_sv_lock(pTHX_ SV *osv) |
---|
3484 | { |
---|
3485 | MAGIC *mg; |
---|
3486 | SV *sv = osv; |
---|
3487 | |
---|
3488 | LOCK_SV_LOCK_MUTEX; |
---|
3489 | if (SvROK(sv)) { |
---|
3490 | sv = SvRV(sv); |
---|
3491 | } |
---|
3492 | |
---|
3493 | mg = condpair_magic(sv); |
---|
3494 | MUTEX_LOCK(MgMUTEXP(mg)); |
---|
3495 | if (MgOWNER(mg) == thr) |
---|
3496 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
---|
3497 | else { |
---|
3498 | while (MgOWNER(mg)) |
---|
3499 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); |
---|
3500 | MgOWNER(mg) = thr; |
---|
3501 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
---|
3502 | "0x%"UVxf": Perl_lock lock 0x%"UVxf"\n", |
---|
3503 | PTR2UV(thr), PTR2UV(sv));) |
---|
3504 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
---|
3505 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
---|
3506 | } |
---|
3507 | UNLOCK_SV_LOCK_MUTEX; |
---|
3508 | return sv; |
---|
3509 | } |
---|
3510 | |
---|
3511 | /* |
---|
3512 | * Make a new perl thread structure using t as a prototype. Some of the |
---|
3513 | * fields for the new thread are copied from the prototype thread, t, |
---|
3514 | * so t should not be running in perl at the time this function is |
---|
3515 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the |
---|
3516 | * thread calling new_struct_thread) clearly satisfies this constraint. |
---|
3517 | */ |
---|
3518 | struct perl_thread * |
---|
3519 | Perl_new_struct_thread(pTHX_ struct perl_thread *t) |
---|
3520 | { |
---|
3521 | #if !defined(PERL_IMPLICIT_CONTEXT) |
---|
3522 | struct perl_thread *thr; |
---|
3523 | #endif |
---|
3524 | SV *sv; |
---|
3525 | SV **svp; |
---|
3526 | I32 i; |
---|
3527 | |
---|
3528 | sv = newSVpvn("", 0); |
---|
3529 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
---|
3530 | SvCUR_set(sv, sizeof(struct perl_thread)); |
---|
3531 | thr = (Thread) SvPVX(sv); |
---|
3532 | #ifdef DEBUGGING |
---|
3533 | memset(thr, 0xab, sizeof(struct perl_thread)); |
---|
3534 | PL_markstack = 0; |
---|
3535 | PL_scopestack = 0; |
---|
3536 | PL_savestack = 0; |
---|
3537 | PL_retstack = 0; |
---|
3538 | PL_dirty = 0; |
---|
3539 | PL_localizing = 0; |
---|
3540 | Zero(&PL_hv_fetch_ent_mh, 1, HE); |
---|
3541 | PL_efloatbuf = (char*)NULL; |
---|
3542 | PL_efloatsize = 0; |
---|
3543 | #else |
---|
3544 | Zero(thr, 1, struct perl_thread); |
---|
3545 | #endif |
---|
3546 | |
---|
3547 | thr->oursv = sv; |
---|
3548 | init_stacks(); |
---|
3549 | |
---|
3550 | PL_curcop = &PL_compiling; |
---|
3551 | thr->interp = t->interp; |
---|
3552 | thr->cvcache = newHV(); |
---|
3553 | thr->threadsv = newAV(); |
---|
3554 | thr->specific = newAV(); |
---|
3555 | thr->errsv = newSVpvn("", 0); |
---|
3556 | thr->flags = THRf_R_JOINABLE; |
---|
3557 | MUTEX_INIT(&thr->mutex); |
---|
3558 | |
---|
3559 | JMPENV_BOOTSTRAP; |
---|
3560 | |
---|
3561 | PL_in_eval = EVAL_NULL; /* ~(EVAL_INEVAL|EVAL_WARNONLY|EVAL_KEEPERR|EVAL_INREQUIRE) */ |
---|
3562 | PL_restartop = 0; |
---|
3563 | |
---|
3564 | PL_statname = NEWSV(66,0); |
---|
3565 | PL_errors = newSVpvn("", 0); |
---|
3566 | PL_maxscream = -1; |
---|
3567 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
---|
3568 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); |
---|
3569 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); |
---|
3570 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); |
---|
3571 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); |
---|
3572 | PL_regindent = 0; |
---|
3573 | PL_reginterp_cnt = 0; |
---|
3574 | PL_lastscream = Nullsv; |
---|
3575 | PL_screamfirst = 0; |
---|
3576 | PL_screamnext = 0; |
---|
3577 | PL_reg_start_tmp = 0; |
---|
3578 | PL_reg_start_tmpl = 0; |
---|
3579 | PL_reg_poscache = Nullch; |
---|
3580 | |
---|
3581 | /* parent thread's data needs to be locked while we make copy */ |
---|
3582 | MUTEX_LOCK(&t->mutex); |
---|
3583 | |
---|
3584 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
---|
3585 | PL_protect = t->Tprotect; |
---|
3586 | #endif |
---|
3587 | |
---|
3588 | PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ |
---|
3589 | PL_defstash = t->Tdefstash; /* XXX maybe these should */ |
---|
3590 | PL_curstash = t->Tcurstash; /* always be set to main? */ |
---|
3591 | |
---|
3592 | PL_tainted = t->Ttainted; |
---|
3593 | PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
---|
3594 | PL_nrs = newSVsv(t->Tnrs); |
---|
3595 | PL_rs = t->Tnrs ? SvREFCNT_inc(PL_nrs) : Nullsv; |
---|
3596 | PL_last_in_gv = Nullgv; |
---|
3597 | PL_ofslen = t->Tofslen; |
---|
3598 | PL_ofs = savepvn(t->Tofs, PL_ofslen); |
---|
3599 | PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); |
---|
3600 | PL_chopset = t->Tchopset; |
---|
3601 | PL_bodytarget = newSVsv(t->Tbodytarget); |
---|
3602 | PL_toptarget = newSVsv(t->Ttoptarget); |
---|
3603 | if (t->Tformtarget == t->Ttoptarget) |
---|
3604 | PL_formtarget = PL_toptarget; |
---|
3605 | else |
---|
3606 | PL_formtarget = PL_bodytarget; |
---|
3607 | |
---|
3608 | /* Initialise all per-thread SVs that the template thread used */ |
---|
3609 | svp = AvARRAY(t->threadsv); |
---|
3610 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
---|
3611 | if (*svp && *svp != &PL_sv_undef) { |
---|
3612 | SV *sv = newSVsv(*svp); |
---|
3613 | av_store(thr->threadsv, i, sv); |
---|
3614 | sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); |
---|
3615 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
---|
3616 | "new_struct_thread: copied threadsv %"IVdf" %p->%p\n", |
---|
3617 | (IV)i, t, thr)); |
---|
3618 | } |
---|
3619 | } |
---|
3620 | thr->threadsvp = AvARRAY(thr->threadsv); |
---|
3621 | |
---|
3622 | MUTEX_LOCK(&PL_threads_mutex); |
---|
3623 | PL_nthreads++; |
---|
3624 | thr->tid = ++PL_threadnum; |
---|
3625 | thr->next = t->next; |
---|
3626 | thr->prev = t; |
---|
3627 | t->next = thr; |
---|
3628 | thr->next->prev = thr; |
---|
3629 | MUTEX_UNLOCK(&PL_threads_mutex); |
---|
3630 | |
---|
3631 | /* done copying parent's state */ |
---|
3632 | MUTEX_UNLOCK(&t->mutex); |
---|
3633 | |
---|
3634 | #ifdef HAVE_THREAD_INTERN |
---|
3635 | Perl_init_thread_intern(thr); |
---|
3636 | #endif /* HAVE_THREAD_INTERN */ |
---|
3637 | return thr; |
---|
3638 | } |
---|
3639 | #endif /* USE_THREADS */ |
---|
3640 | |
---|
3641 | #if defined(HUGE_VAL) || (defined(USE_LONG_DOUBLE) && defined(HUGE_VALL)) |
---|
3642 | /* |
---|
3643 | * This hack is to force load of "huge" support from libm.a |
---|
3644 | * So it is in perl for (say) POSIX to use. |
---|
3645 | * Needed for SunOS with Sun's 'acc' for example. |
---|
3646 | */ |
---|
3647 | NV |
---|
3648 | Perl_huge(void) |
---|
3649 | { |
---|
3650 | # if defined(USE_LONG_DOUBLE) && defined(HUGE_VALL) |
---|
3651 | return HUGE_VALL; |
---|
3652 | # endif |
---|
3653 | return HUGE_VAL; |
---|
3654 | } |
---|
3655 | #endif |
---|
3656 | |
---|
3657 | #ifdef PERL_GLOBAL_STRUCT |
---|
3658 | struct perl_vars * |
---|
3659 | Perl_GetVars(pTHX) |
---|
3660 | { |
---|
3661 | return &PL_Vars; |
---|
3662 | } |
---|
3663 | #endif |
---|
3664 | |
---|
3665 | char ** |
---|
3666 | Perl_get_op_names(pTHX) |
---|
3667 | { |
---|
3668 | return PL_op_name; |
---|
3669 | } |
---|
3670 | |
---|
3671 | char ** |
---|
3672 | Perl_get_op_descs(pTHX) |
---|
3673 | { |
---|
3674 | return PL_op_desc; |
---|
3675 | } |
---|
3676 | |
---|
3677 | char * |
---|
3678 | Perl_get_no_modify(pTHX) |
---|
3679 | { |
---|
3680 | return (char*)PL_no_modify; |
---|
3681 | } |
---|
3682 | |
---|
3683 | U32 * |
---|
3684 | Perl_get_opargs(pTHX) |
---|
3685 | { |
---|
3686 | return PL_opargs; |
---|
3687 | } |
---|
3688 | |
---|
3689 | PPADDR_t* |
---|
3690 | Perl_get_ppaddr(pTHX) |
---|
3691 | { |
---|
3692 | return &PL_ppaddr; |
---|
3693 | } |
---|
3694 | |
---|
3695 | #ifndef HAS_GETENV_LEN |
---|
3696 | char * |
---|
3697 | Perl_getenv_len(pTHX_ const char *env_elem, unsigned long *len) |
---|
3698 | { |
---|
3699 | char *env_trans = PerlEnv_getenv(env_elem); |
---|
3700 | if (env_trans) |
---|
3701 | *len = strlen(env_trans); |
---|
3702 | return env_trans; |
---|
3703 | } |
---|
3704 | #endif |
---|
3705 | |
---|
3706 | |
---|
3707 | MGVTBL* |
---|
3708 | Perl_get_vtbl(pTHX_ int vtbl_id) |
---|
3709 | { |
---|
3710 | MGVTBL* result = Null(MGVTBL*); |
---|
3711 | |
---|
3712 | switch(vtbl_id) { |
---|
3713 | case want_vtbl_sv: |
---|
3714 | result = &PL_vtbl_sv; |
---|
3715 | break; |
---|
3716 | case want_vtbl_env: |
---|
3717 | result = &PL_vtbl_env; |
---|
3718 | break; |
---|
3719 | case want_vtbl_envelem: |
---|
3720 | result = &PL_vtbl_envelem; |
---|
3721 | break; |
---|
3722 | case want_vtbl_sig: |
---|
3723 | result = &PL_vtbl_sig; |
---|
3724 | break; |
---|
3725 | case want_vtbl_sigelem: |
---|
3726 | result = &PL_vtbl_sigelem; |
---|
3727 | break; |
---|
3728 | case want_vtbl_pack: |
---|
3729 | result = &PL_vtbl_pack; |
---|
3730 | break; |
---|
3731 | case want_vtbl_packelem: |
---|
3732 | result = &PL_vtbl_packelem; |
---|
3733 | break; |
---|
3734 | case want_vtbl_dbline: |
---|
3735 | result = &PL_vtbl_dbline; |
---|
3736 | break; |
---|
3737 | case want_vtbl_isa: |
---|
3738 | result = &PL_vtbl_isa; |
---|
3739 | break; |
---|
3740 | case want_vtbl_isaelem: |
---|
3741 | result = &PL_vtbl_isaelem; |
---|
3742 | break; |
---|
3743 | case want_vtbl_arylen: |
---|
3744 | result = &PL_vtbl_arylen; |
---|
3745 | break; |
---|
3746 | case want_vtbl_glob: |
---|
3747 | result = &PL_vtbl_glob; |
---|
3748 | break; |
---|
3749 | case want_vtbl_mglob: |
---|
3750 | result = &PL_vtbl_mglob; |
---|
3751 | break; |
---|
3752 | case want_vtbl_nkeys: |
---|
3753 | result = &PL_vtbl_nkeys; |
---|
3754 | break; |
---|
3755 | case want_vtbl_taint: |
---|
3756 | result = &PL_vtbl_taint; |
---|
3757 | break; |
---|
3758 | case want_vtbl_substr: |
---|
3759 | result = &PL_vtbl_substr; |
---|
3760 | break; |
---|
3761 | case want_vtbl_vec: |
---|
3762 | result = &PL_vtbl_vec; |
---|
3763 | break; |
---|
3764 | case want_vtbl_pos: |
---|
3765 | result = &PL_vtbl_pos; |
---|
3766 | break; |
---|
3767 | case want_vtbl_bm: |
---|
3768 | result = &PL_vtbl_bm; |
---|
3769 | break; |
---|
3770 | case want_vtbl_fm: |
---|
3771 | result = &PL_vtbl_fm; |
---|
3772 | break; |
---|
3773 | case want_vtbl_uvar: |
---|
3774 | result = &PL_vtbl_uvar; |
---|
3775 | break; |
---|
3776 | #ifdef USE_THREADS |
---|
3777 | case want_vtbl_mutex: |
---|
3778 | result = &PL_vtbl_mutex; |
---|
3779 | break; |
---|
3780 | #endif |
---|
3781 | case want_vtbl_defelem: |
---|
3782 | result = &PL_vtbl_defelem; |
---|
3783 | break; |
---|
3784 | case want_vtbl_regexp: |
---|
3785 | result = &PL_vtbl_regexp; |
---|
3786 | break; |
---|
3787 | case want_vtbl_regdata: |
---|
3788 | result = &PL_vtbl_regdata; |
---|
3789 | break; |
---|
3790 | case want_vtbl_regdatum: |
---|
3791 | result = &PL_vtbl_regdatum; |
---|
3792 | break; |
---|
3793 | #ifdef USE_LOCALE_COLLATE |
---|
3794 | case want_vtbl_collxfrm: |
---|
3795 | result = &PL_vtbl_collxfrm; |
---|
3796 | break; |
---|
3797 | #endif |
---|
3798 | case want_vtbl_amagic: |
---|
3799 | result = &PL_vtbl_amagic; |
---|
3800 | break; |
---|
3801 | case want_vtbl_amagicelem: |
---|
3802 | result = &PL_vtbl_amagicelem; |
---|
3803 | break; |
---|
3804 | case want_vtbl_backref: |
---|
3805 | result = &PL_vtbl_backref; |
---|
3806 | break; |
---|
3807 | } |
---|
3808 | return result; |
---|
3809 | } |
---|
3810 | |
---|
3811 | #if !defined(FFLUSH_NULL) && defined(HAS__FWALK) |
---|
3812 | static int S_fflush(FILE *fp); |
---|
3813 | |
---|
3814 | static int |
---|
3815 | S_fflush(FILE *fp) |
---|
3816 | { |
---|
3817 | return fflush(fp); |
---|
3818 | } |
---|
3819 | #endif |
---|
3820 | |
---|
3821 | I32 |
---|
3822 | Perl_my_fflush_all(pTHX) |
---|
3823 | { |
---|
3824 | #if defined(FFLUSH_NULL) |
---|
3825 | return PerlIO_flush(NULL); |
---|
3826 | #else |
---|
3827 | # if defined(HAS__FWALK) |
---|
3828 | /* undocumented, unprototyped, but very useful BSDism */ |
---|
3829 | extern void _fwalk(int (*)(FILE *)); |
---|
3830 | _fwalk(&S_fflush); |
---|
3831 | return 0; |
---|
3832 | # else |
---|
3833 | long open_max = -1; |
---|
3834 | # if defined(FFLUSH_ALL) && defined(HAS_STDIO_STREAM_ARRAY) |
---|
3835 | # ifdef PERL_FFLUSH_ALL_FOPEN_MAX |
---|
3836 | open_max = PERL_FFLUSH_ALL_FOPEN_MAX; |
---|
3837 | # else |
---|
3838 | # if defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX) |
---|
3839 | open_max = sysconf(_SC_OPEN_MAX); |
---|
3840 | # else |
---|
3841 | # ifdef FOPEN_MAX |
---|
3842 | open_max = FOPEN_MAX; |
---|
3843 | # else |
---|
3844 | # ifdef OPEN_MAX |
---|
3845 | open_max = OPEN_MAX; |
---|
3846 | # else |
---|
3847 | # ifdef _NFILE |
---|
3848 | open_max = _NFILE; |
---|
3849 | # endif |
---|
3850 | # endif |
---|
3851 | # endif |
---|
3852 | # endif |
---|
3853 | # endif |
---|
3854 | if (open_max > 0) { |
---|
3855 | long i; |
---|
3856 | for (i = 0; i < open_max; i++) |
---|
3857 | if (STDIO_STREAM_ARRAY[i]._file >= 0 && |
---|
3858 | STDIO_STREAM_ARRAY[i]._file < open_max && |
---|
3859 | STDIO_STREAM_ARRAY[i]._flag) |
---|
3860 | PerlIO_flush(&STDIO_STREAM_ARRAY[i]); |
---|
3861 | return 0; |
---|
3862 | } |
---|
3863 | # endif |
---|
3864 | SETERRNO(EBADF,RMS$_IFI); |
---|
3865 | return EOF; |
---|
3866 | # endif |
---|
3867 | #endif |
---|
3868 | } |
---|
3869 | |
---|
3870 | NV |
---|
3871 | Perl_my_atof(pTHX_ const char* s) |
---|
3872 | { |
---|
3873 | NV x = 0.0; |
---|
3874 | #ifdef USE_LOCALE_NUMERIC |
---|
3875 | if ((PL_hints & HINT_LOCALE) && PL_numeric_local) { |
---|
3876 | NV y; |
---|
3877 | |
---|
3878 | Perl_atof2(s, x); |
---|
3879 | SET_NUMERIC_STANDARD(); |
---|
3880 | Perl_atof2(s, y); |
---|
3881 | SET_NUMERIC_LOCAL(); |
---|
3882 | if ((y < 0.0 && y < x) || (y > 0.0 && y > x)) |
---|
3883 | return y; |
---|
3884 | } |
---|
3885 | else |
---|
3886 | Perl_atof2(s, x); |
---|
3887 | #else |
---|
3888 | Perl_atof2(s, x); |
---|
3889 | #endif |
---|
3890 | return x; |
---|
3891 | } |
---|
3892 | |
---|
3893 | void |
---|
3894 | Perl_report_evil_fh(pTHX_ GV *gv, IO *io, I32 op) |
---|
3895 | { |
---|
3896 | char *vile; |
---|
3897 | I32 warn_type; |
---|
3898 | char *func = |
---|
3899 | op == OP_READLINE ? "readline" : /* "<HANDLE>" not nice */ |
---|
3900 | op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */ |
---|
3901 | PL_op_desc[op]; |
---|
3902 | char *pars = OP_IS_FILETEST(op) ? "" : "()"; |
---|
3903 | char *type = OP_IS_SOCKET(op) || (io && IoTYPE(io) == IoTYPE_SOCKET) ? |
---|
3904 | "socket" : "filehandle"; |
---|
3905 | char *name = NULL; |
---|
3906 | |
---|
3907 | if (io && IoTYPE(io) == IoTYPE_CLOSED) { |
---|
3908 | vile = "closed"; |
---|
3909 | warn_type = WARN_CLOSED; |
---|
3910 | } |
---|
3911 | else { |
---|
3912 | vile = "unopened"; |
---|
3913 | warn_type = WARN_UNOPENED; |
---|
3914 | } |
---|
3915 | |
---|
3916 | if (gv && isGV(gv)) { |
---|
3917 | SV *sv = sv_newmortal(); |
---|
3918 | gv_efullname4(sv, gv, Nullch, FALSE); |
---|
3919 | name = SvPVX(sv); |
---|
3920 | } |
---|
3921 | |
---|
3922 | if (name && *name) { |
---|
3923 | Perl_warner(aTHX_ warn_type, |
---|
3924 | "%s%s on %s %s %s", func, pars, vile, type, name); |
---|
3925 | if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) |
---|
3926 | Perl_warner(aTHX_ warn_type, |
---|
3927 | "\t(Are you trying to call %s%s on dirhandle %s?)\n", |
---|
3928 | func, pars, name); |
---|
3929 | } |
---|
3930 | else { |
---|
3931 | Perl_warner(aTHX_ warn_type, |
---|
3932 | "%s%s on %s %s", func, pars, vile, type); |
---|
3933 | if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) |
---|
3934 | Perl_warner(aTHX_ warn_type, |
---|
3935 | "\t(Are you trying to call %s%s on dirhandle?)\n", |
---|
3936 | func, pars); |
---|
3937 | } |
---|
3938 | } |
---|
3939 | |
---|
3940 | #ifdef EBCDIC |
---|
3941 | /* in ASCII order, not that it matters */ |
---|
3942 | static const char controllablechars[] = "?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"; |
---|
3943 | |
---|
3944 | int |
---|
3945 | Perl_ebcdic_control(pTHX_ int ch) |
---|
3946 | { |
---|
3947 | if (ch > 'a') { |
---|
3948 | char *ctlp; |
---|
3949 | |
---|
3950 | if (islower(ch)) |
---|
3951 | ch = toupper(ch); |
---|
3952 | |
---|
3953 | if ((ctlp = strchr(controllablechars, ch)) == 0) { |
---|
3954 | Perl_die(aTHX_ "unrecognised control character '%c'\n", ch); |
---|
3955 | } |
---|
3956 | |
---|
3957 | if (ctlp == controllablechars) |
---|
3958 | return('\177'); /* DEL */ |
---|
3959 | else |
---|
3960 | return((unsigned char)(ctlp - controllablechars - 1)); |
---|
3961 | } else { /* Want uncontrol */ |
---|
3962 | if (ch == '\177' || ch == -1) |
---|
3963 | return('?'); |
---|
3964 | else if (ch == '\157') |
---|
3965 | return('\177'); |
---|
3966 | else if (ch == '\174') |
---|
3967 | return('\000'); |
---|
3968 | else if (ch == '^') /* '\137' in 1047, '\260' in 819 */ |
---|
3969 | return('\036'); |
---|
3970 | else if (ch == '\155') |
---|
3971 | return('\037'); |
---|
3972 | else if (0 < ch && ch < (sizeof(controllablechars) - 1)) |
---|
3973 | return(controllablechars[ch+1]); |
---|
3974 | else |
---|
3975 | Perl_die(aTHX_ "invalid control request: '\\%03o'\n", ch & 0xFF); |
---|
3976 | } |
---|
3977 | } |
---|
3978 | #endif |
---|