1 | /* |
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2 | * $Source: /afs/dev.mit.edu/source/repository/athena/bin/delete/util.c,v $ |
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3 | * $Author: jik $ |
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4 | * |
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5 | * This program is a replacement for rm. Instead of actually deleting |
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6 | * files, it marks them for deletion by prefixing them with a ".#" |
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7 | * prefix. |
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8 | * |
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9 | * Copyright (c) 1989 by the Massachusetts Institute of Technology. |
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10 | * For copying and distribution information, see the file "mit-copyright.h." |
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11 | */ |
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12 | |
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13 | #if (!defined(lint) && !defined(SABER)) |
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14 | static char rcsid_util_c[] = "$Header: /afs/dev.mit.edu/source/repository/athena/bin/delete/util.c,v 1.9 1989-10-23 13:08:27 jik Exp $"; |
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15 | #endif |
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16 | |
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17 | #include <stdio.h> |
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18 | #include <sys/param.h> |
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19 | #include <sys/types.h> |
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20 | #include <sys/stat.h> |
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21 | #include <sys/dir.h> |
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22 | #include <strings.h> |
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23 | #include <pwd.h> |
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24 | #include <errno.h> |
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25 | #include "delete_errs.h" |
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26 | #include "directories.h" |
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27 | #include "util.h" |
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28 | #include "mit-copyright.h" |
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29 | #include "errors.h" |
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30 | |
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31 | extern char *getenv(); |
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32 | extern uid_t getuid(); |
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33 | |
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34 | char *convert_to_user_name(real_name, user_name) |
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35 | char real_name[]; |
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36 | char user_name[]; /* RETURN */ |
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37 | { |
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38 | char *ptr, *q; |
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39 | |
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40 | (void) strcpy(user_name, real_name); |
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41 | while (ptr = strrindex(user_name, ".#")) { |
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42 | for (q = ptr; *(q + 2); q++) |
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43 | *q = *(q + 2); |
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44 | *q = '\0'; |
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45 | } |
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46 | return (user_name); |
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47 | } |
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48 | |
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49 | |
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50 | |
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51 | |
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52 | |
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53 | char *strindex(str, sub_str) |
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54 | char *str, *sub_str; |
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55 | { |
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56 | char *ptr = str; |
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57 | while (ptr = index(ptr, *sub_str)) { |
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58 | if (! strncmp(ptr, sub_str, strlen(sub_str))) |
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59 | return(ptr); |
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60 | ptr++; |
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61 | } |
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62 | return ((char *) NULL); |
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63 | } |
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64 | |
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65 | |
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66 | |
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67 | char *strrindex(str, sub_str) |
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68 | char *str, *sub_str; |
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69 | { |
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70 | char *ptr; |
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71 | |
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72 | if (strlen(str)) |
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73 | ptr = &str[strlen(str) - 1]; |
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74 | else |
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75 | return((char *) NULL); |
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76 | while ((*ptr != *sub_str) && (ptr != str)) ptr--; |
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77 | while (ptr != str) { |
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78 | if (! strncmp(ptr, sub_str, strlen(sub_str))) |
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79 | return(ptr); |
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80 | ptr--; |
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81 | while ((*ptr != *sub_str) && (ptr != str)) ptr--; |
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82 | } |
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83 | if (! strncmp(ptr, sub_str, strlen(sub_str))) |
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84 | return(str); |
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85 | else |
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86 | return ((char *) NULL); |
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87 | } |
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88 | |
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89 | |
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90 | /* |
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91 | * NOTE: Append uses a static array, so its return value must be |
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92 | * copied immediately. |
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93 | */ |
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94 | char *append(filepath, filename) |
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95 | char *filepath, *filename; |
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96 | { |
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97 | static char buf[MAXPATHLEN]; |
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98 | |
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99 | (void) strcpy(buf, filepath); |
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100 | if ((! *filename) || (! *filepath)) { |
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101 | (void) strcpy(buf, filename); |
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102 | return(buf); |
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103 | } |
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104 | if (buf[strlen(buf) - 1] == '/') |
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105 | buf[strlen(buf) - 1] = '\0'; |
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106 | if (strlen(buf) + strlen(filename) + 2 > MAXPATHLEN) { |
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107 | set_error(ENAMETOOLONG); |
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108 | strncat(buf, "/", MAXPATHLEN - strlen(buf) - 1); |
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109 | strncat(buf, filename, MAXPATHLEN - strlen(buf) - 1); |
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110 | error(buf); |
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111 | *buf = '\0'; |
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112 | return buf; |
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113 | } |
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114 | (void) strcat(buf, "/"); |
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115 | (void) strcat(buf, filename); |
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116 | return buf; |
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117 | } |
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118 | |
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119 | |
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120 | |
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121 | |
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122 | yes() { |
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123 | char buf[BUFSIZ]; |
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124 | char *val; |
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125 | |
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126 | val = fgets(buf, BUFSIZ, stdin); |
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127 | if (! val) { |
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128 | printf("\n"); |
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129 | exit(1); |
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130 | } |
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131 | if (! index(buf, '\n')) do |
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132 | (void) fgets(buf + 1, BUFSIZ - 1, stdin); |
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133 | while (! index(buf + 1, '\n')); |
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134 | return(*buf == 'y'); |
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135 | } |
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136 | |
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137 | |
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138 | |
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139 | |
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140 | char *lastpart(filename) |
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141 | char *filename; |
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142 | { |
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143 | char *part; |
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144 | |
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145 | part = rindex(filename, '/'); |
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146 | |
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147 | if (! part) |
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148 | part = filename; |
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149 | else if (part == filename) |
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150 | part++; |
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151 | else if (part - filename + 1 == strlen(filename)) { |
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152 | part = rindex(--part, '/'); |
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153 | if (! part) |
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154 | part = filename; |
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155 | else |
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156 | part++; |
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157 | } |
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158 | else |
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159 | part++; |
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160 | |
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161 | return(part); |
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162 | } |
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163 | |
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164 | |
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165 | |
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166 | |
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167 | char *firstpart(filename, rest) |
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168 | char *filename; |
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169 | char *rest; /* RETURN */ |
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170 | { |
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171 | char *part; |
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172 | static char buf[MAXPATHLEN]; |
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173 | |
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174 | (void) strcpy(buf, filename); |
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175 | part = index(buf, '/'); |
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176 | if (! part) { |
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177 | *rest = '\0'; |
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178 | return(buf); |
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179 | } |
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180 | (void) strcpy(rest, part + 1); |
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181 | *part = '\0'; |
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182 | return(buf); |
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183 | } |
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184 | |
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185 | |
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186 | |
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187 | |
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188 | |
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189 | get_home(buf) |
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190 | char *buf; |
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191 | { |
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192 | char *user; |
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193 | struct passwd *psw; |
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194 | |
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195 | (void) strcpy(buf, getenv("HOME")); |
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196 | |
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197 | if (*buf) |
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198 | return(0); |
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199 | |
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200 | user = getenv("USER"); |
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201 | psw = getpwnam(user); |
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202 | |
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203 | if (psw) { |
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204 | (void) strcpy(buf, psw->pw_dir); |
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205 | return(0); |
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206 | } |
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207 | |
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208 | psw = getpwuid((int) getuid()); |
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209 | |
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210 | if (psw) { |
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211 | (void) strcpy(buf, psw->pw_dir); |
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212 | return(0); |
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213 | } |
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214 | |
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215 | set_error(NO_HOME_DIR); |
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216 | error("get_home"); |
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217 | return error_code; |
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218 | } |
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219 | |
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220 | |
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221 | |
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222 | |
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223 | timed_out(file_ent, current_time, min_days) |
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224 | filerec *file_ent; |
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225 | int current_time, min_days; |
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226 | { |
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227 | if ((current_time - file_ent->specs.st_mtime) / 86400 >= min_days) |
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228 | return(1); |
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229 | else |
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230 | return(0); |
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231 | } |
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232 | |
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233 | |
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234 | |
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235 | int directory_exists(dirname) |
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236 | char *dirname; |
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237 | { |
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238 | struct stat stat_buf; |
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239 | |
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240 | if (stat(dirname, &stat_buf)) |
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241 | return(0); |
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242 | else if ((stat_buf.st_mode & S_IFMT) == S_IFDIR) |
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243 | return(1); |
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244 | else |
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245 | return(0); |
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246 | } |
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247 | |
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248 | |
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