1 | /* $Id: increment.pc 3956 2010-01-05 20:56:56Z zacheiss $ |
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2 | * |
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3 | * Deal with incremental updates |
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4 | * |
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5 | * Copyright (C) 1989-1998 by the Massachusetts Institute of Technology |
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6 | * For copying and distribution information, please see the file |
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7 | * <mit-copyright.h>. |
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8 | */ |
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9 | |
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10 | #include <mit-copyright.h> |
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11 | #include "mr_server.h" |
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12 | #include "query.h" |
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13 | #include "qrtn.h" |
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14 | |
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15 | #include <signal.h> |
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16 | #include <stdio.h> |
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17 | #include <stdlib.h> |
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18 | #include <string.h> |
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19 | #include <unistd.h> |
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20 | #include <sys/param.h> |
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21 | |
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22 | EXEC SQL INCLUDE sqlca; |
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23 | |
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24 | RCSID("$HeadURL: svn+ssh://svn.mit.edu/moira/trunk/moira/server/increment.pc $ $Id: increment.pc 3956 2010-01-05 20:56:56Z zacheiss $"); |
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25 | |
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26 | extern char *whoami; |
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27 | extern char *table_name[]; |
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28 | extern int num_tables; |
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29 | |
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30 | int inc_pid = 0; |
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31 | int inc_running = 0; |
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32 | time_t inc_started; |
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33 | |
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34 | #define MAXARGC 16 |
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35 | |
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36 | EXEC SQL WHENEVER SQLERROR DO dbmserr(); |
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37 | |
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38 | EXEC SQL BEGIN DECLARE SECTION; |
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39 | /* structures to save before args */ |
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40 | static char *before[MAXARGC]; |
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41 | static int beforec; |
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42 | static enum tables beforetable; |
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43 | |
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44 | /* structures to save after args */ |
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45 | static char *after[MAXARGC]; |
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46 | static int afterc; |
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47 | EXEC SQL END DECLARE SECTION; |
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48 | |
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49 | /* structures to save entire sets of incremental changes */ |
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50 | struct save_queue *incremental_sq = NULL; |
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51 | struct save_queue *incremental_exec = NULL; |
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52 | struct iupdate { |
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53 | char *table; |
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54 | int beforec; |
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55 | char **before; |
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56 | int afterc; |
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57 | char **after; |
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58 | char *service; |
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59 | }; |
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60 | |
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61 | void next_incremental(void); |
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62 | char **copy_argv(char **argv, int argc); |
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63 | void free_argv(char **argv, int argc); |
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64 | int table_num(char *table); |
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65 | |
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66 | void incremental_init(void) |
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67 | { |
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68 | int i; |
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69 | |
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70 | if (!incremental_sq) |
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71 | incremental_sq = sq_create(); |
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72 | if (!incremental_exec) |
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73 | incremental_exec = sq_create(); |
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74 | |
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75 | for (i = 0; i < MAXARGC; i++) |
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76 | { |
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77 | before[i] = xmalloc(MAX_FIELD_WIDTH); |
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78 | after[i] = xmalloc(MAX_FIELD_WIDTH); |
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79 | } |
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80 | } |
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81 | |
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82 | |
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83 | /* record the state of a table row before it is changed */ |
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84 | |
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85 | void incremental_before(enum tables table, char *qual, char **argv) |
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86 | { |
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87 | EXEC SQL BEGIN DECLARE SECTION; |
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88 | int id; |
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89 | EXEC SQL END DECLARE SECTION; |
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90 | |
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91 | char *name, *name2; |
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92 | |
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93 | beforetable = table; |
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94 | |
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95 | switch (table) |
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96 | { |
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97 | case USERS_TABLE: |
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98 | sprintf(stmt_buf, "SELECT u.login, u.unix_uid, u.shell, " |
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99 | "u.winconsoleshell, u.last, u.first, u.middle, u.status, " |
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100 | "u.clearid, u.type, u.users_id, u.winhomedir, u.winprofiledir, " |
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101 | "u.potype FROM users u WHERE %s", qual); |
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102 | dosql(before); |
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103 | beforec = 14; |
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104 | break; |
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105 | case MACHINE_TABLE: |
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106 | sprintf(stmt_buf, "SELECT m.name, m.vendor, m.mach_id FROM machine m " |
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107 | "WHERE %s", qual); |
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108 | dosql(before); |
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109 | beforec = 3; |
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110 | break; |
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111 | case CLUSTERS_TABLE: |
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112 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, " |
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113 | "c.clu_id FROM clusters c WHERE %s", qual); |
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114 | dosql(before); |
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115 | beforec = 4; |
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116 | break; |
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117 | case CONTAINERS_TABLE: |
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118 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, c.contact, " |
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119 | "c.acl_type, c.acl_id, c.cnt_id, c.list_id FROM containers c " |
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120 | "WHERE %s", qual); |
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121 | dosql(before); |
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122 | beforec = 8; |
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123 | name = xmalloc(0); |
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124 | id = atoi(before[5]); |
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125 | if (!strncmp(before[4], "USER", 4)) |
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126 | { |
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127 | id_to_name(id, USERS_TABLE, &name); |
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128 | strcpy(before[5], name); |
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129 | } |
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130 | else if (!strncmp(before[4], "LIST", 4)) |
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131 | { |
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132 | id_to_name(id, LIST_TABLE, &name); |
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133 | strcpy(before[5], name); |
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134 | } |
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135 | else if (!strncmp(before[4], "KERBEROS", 8)) |
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136 | { |
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137 | id_to_name(id, STRINGS_TABLE, &name); |
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138 | strcpy(before[5], name); |
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139 | } |
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140 | id = atoi(before[7]); |
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141 | id_to_name(id, LIST_TABLE, &name); |
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142 | strcpy(before[7], name); |
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143 | break; |
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144 | case MCMAP_TABLE: |
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145 | strcpy(before[0], argv[0]); |
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146 | strcpy(before[1], argv[1]); |
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147 | beforec = 2; |
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148 | break; |
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149 | case MCNTMAP_TABLE: |
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150 | strcpy(before[0], argv[0]); |
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151 | strcpy(before[1], argv[1]); |
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152 | name_to_id(before[0], MACHINE_TABLE, &id); |
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153 | sprintf(before[2], "%d", id); |
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154 | name_to_id(before[1], CONTAINERS_TABLE, &id); |
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155 | sprintf(before[3], "%d", id); |
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156 | name = xmalloc(0); |
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157 | EXEC SQL SELECT list_id INTO :before[4] FROM containers |
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158 | WHERE cnt_id = :id; |
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159 | id = atoi(before[4]); |
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160 | id_to_name(id, LIST_TABLE, &name); |
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161 | strcpy(before[4], name); |
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162 | beforec = 5; |
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163 | break; |
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164 | case SVC_TABLE: |
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165 | strcpy(before[0], argv[0]); |
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166 | strcpy(before[1], argv[1]); |
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167 | strcpy(before[2], argv[2]); |
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168 | beforec = 3; |
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169 | break; |
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170 | case FILESYS_TABLE: |
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171 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " |
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172 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " |
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173 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
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174 | "WHERE %s", qual); |
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175 | dosql(before); |
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176 | name = xmalloc(0); |
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177 | id = atoi(before[2]); |
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178 | id_to_name(id, MACHINE_TABLE, &name); |
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179 | strcpy(before[2], name); |
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180 | id = atoi(before[7]); |
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181 | id_to_name(id, USERS_TABLE, &name); |
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182 | strcpy(before[7], name); |
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183 | id = atoi(before[8]); |
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184 | id_to_name(id, LIST_TABLE, &name); |
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185 | strcpy(before[8], name); |
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186 | free(name); |
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187 | beforec = 12; |
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188 | break; |
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189 | case QUOTA_TABLE: |
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190 | strcpy(before[0], "?"); |
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191 | strcpy(before[1], argv[1]); |
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192 | strcpy(before[2], "?"); |
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193 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " |
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194 | "WHERE %s AND fs.filsys_id = q.filsys_id", qual); |
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195 | dosql(&(before[3])); |
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196 | strcpy(before[2], argv[1]); |
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197 | beforec = 5; |
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198 | break; |
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199 | case LIST_TABLE: |
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200 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " |
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201 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " |
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202 | "l.description, l.list_id, l.nfsgroup FROM list l WHERE %s", qual); |
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203 | dosql(before); |
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204 | beforec = 12; |
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205 | break; |
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206 | case IMEMBERS_TABLE: |
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207 | id = (int)(long)argv[0]; |
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208 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " |
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209 | "grouplist, gid, nfsgroup FROM list WHERE list_id = %d", id); |
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210 | dosql(&(before[3])); |
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211 | name = xmalloc(0); |
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212 | id_to_name(id, LIST_TABLE, &name); |
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213 | name2 = xmalloc(0); |
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214 | strcpy(before[0], name); |
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215 | strcpy(before[1], argv[1]); |
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216 | id = (int)(long)argv[2]; |
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217 | beforec = 11; |
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218 | if (!strcmp(before[1], "USER")) |
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219 | { |
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220 | id_to_name(id, USERS_TABLE, &name2); |
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221 | EXEC SQL SELECT status, users_id INTO :before[10], :before[12] |
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222 | FROM users WHERE users_id = :id; |
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223 | EXEC SQL SELECT list_id INTO :before[11] FROM list |
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224 | WHERE name = :name; |
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225 | beforec = 13; |
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226 | } |
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227 | else if (!strcmp(before[1], "LIST")) |
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228 | { |
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229 | id_to_name(id, LIST_TABLE, &name2); |
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230 | EXEC SQL SELECT list_id INTO :before[10] FROM list |
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231 | WHERE name = :name; |
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232 | sprintf(before[11], "%d", id); |
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233 | beforec = 12; |
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234 | } |
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235 | else if (!strcmp(before[1], "STRING") || !strcmp(before[1], "KERBEROS")) |
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236 | { |
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237 | id_to_name(id, STRINGS_TABLE, &name2); |
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238 | EXEC SQL SELECT list_id INTO :before[10] FROM list |
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239 | WHERE name = :name; |
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240 | } |
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241 | else if (!strcmp(before[1], "MACHINE")) |
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242 | { |
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243 | id_to_name(id, MACHINE_TABLE, &name2); |
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244 | EXEC SQL SELECT list_id INTO :before[10] FROM list |
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245 | WHERE name = :name; |
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246 | sprintf(before[11], "%d", id); |
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247 | beforec = 12; |
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248 | } |
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249 | strcpy(before[2], name2); |
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250 | free(name); |
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251 | free(name2); |
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252 | break; |
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253 | default: |
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254 | /* |
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255 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", |
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256 | table_name[table]); |
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257 | */ |
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258 | break; |
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259 | } |
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260 | } |
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261 | |
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262 | |
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263 | void incremental_clear_before(void) |
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264 | { |
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265 | beforec = 0; |
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266 | } |
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267 | |
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268 | |
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269 | /* add an element to the incremental queue for the changed row */ |
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270 | |
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271 | void incremental_after(enum tables table, char *qual, char **argv) |
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272 | { |
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273 | char *name, *name2; |
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274 | EXEC SQL BEGIN DECLARE SECTION; |
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275 | int id; |
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276 | EXEC SQL END DECLARE SECTION; |
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277 | struct iupdate *iu; |
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278 | |
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279 | switch (table) |
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280 | { |
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281 | case USERS_TABLE: |
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282 | sprintf(stmt_buf, "SELECT u.login, u.unix_uid, u.shell, " |
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283 | "u.winconsoleshell, u.last, u.first, u.middle, u.status, " |
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284 | "u.clearid, u.type, u.users_id, u.winhomedir, u.winprofiledir, " |
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285 | "u.potype FROM users u WHERE %s", qual); |
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286 | dosql(after); |
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287 | afterc = 14; |
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288 | break; |
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289 | case MACHINE_TABLE: |
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290 | sprintf(stmt_buf, "SELECT m.name, m.vendor, m.mach_id FROM machine m " |
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291 | "WHERE %s", qual); |
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292 | dosql(after); |
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293 | afterc = 3; |
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294 | break; |
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295 | case CLUSTERS_TABLE: |
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296 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, " |
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297 | "c.clu_id FROM clusters c WHERE %s", qual); |
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298 | dosql(after); |
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299 | afterc = 4; |
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300 | break; |
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301 | case CONTAINERS_TABLE: |
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302 | sprintf(stmt_buf, "SELECT c.name, c.description, c.location, c.contact, " |
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303 | "c.acl_type, c.acl_id, c.cnt_id, c.list_id FROM containers c " |
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304 | "WHERE %s", qual); |
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305 | dosql(after); |
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306 | afterc = 8; |
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307 | name = xmalloc(0); |
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308 | id = atoi(after[5]); |
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309 | if (!strncmp(after[4], "USER", 4)) |
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310 | { |
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311 | id_to_name(id, USERS_TABLE, &name); |
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312 | strcpy(after[5], name); |
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313 | } |
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314 | else if (!strncmp(after[4], "LIST", 4)) |
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315 | { |
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316 | id_to_name(id, LIST_TABLE, &name); |
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317 | strcpy(after[5], name); |
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318 | } |
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319 | else if (!strncmp(after[4], "KERBEROS", 8)) |
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320 | { |
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321 | id_to_name(id, STRINGS_TABLE, &name); |
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322 | strcpy(after[5], name); |
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323 | } |
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324 | id = atoi(after[7]); |
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325 | id_to_name(id, LIST_TABLE, &name); |
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326 | strcpy(after[7], name); |
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327 | break; |
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328 | case MCMAP_TABLE: |
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329 | strcpy(after[0], argv[0]); |
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330 | strcpy(after[1], argv[1]); |
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331 | afterc = 2; |
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332 | break; |
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333 | case MCNTMAP_TABLE: |
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334 | strcpy(after[0], argv[0]); |
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335 | strcpy(after[1], argv[1]); |
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336 | name_to_id(after[0], MACHINE_TABLE, &id); |
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337 | sprintf(after[2], "%d", id); |
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338 | name_to_id(after[1], CONTAINERS_TABLE, &id); |
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339 | sprintf(after[3], "%d", id); |
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340 | name = xmalloc(0); |
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341 | EXEC SQL SELECT list_id INTO :after[4] FROM containers |
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342 | WHERE cnt_id = :id; |
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343 | id = atoi(after[4]); |
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344 | id_to_name(id, LIST_TABLE, &name); |
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345 | strcpy(after[4], name); |
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346 | afterc = 5; |
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347 | break; |
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348 | case SVC_TABLE: |
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349 | strcpy(after[0], argv[0]); |
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350 | strcpy(after[1], argv[1]); |
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351 | strcpy(after[2], argv[2]); |
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352 | afterc = 3; |
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353 | break; |
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354 | case FILESYS_TABLE: |
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355 | sprintf(stmt_buf, "SELECT fs.label, fs.type, fs.mach_id, fs.name, " |
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356 | "fs.mount, fs.rwaccess, fs.comments, fs.owner, fs.owners, " |
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357 | "fs.createflg, fs.lockertype, fs.filsys_id FROM filesys fs " |
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358 | "WHERE %s", qual); |
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359 | dosql(after); |
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360 | name = xmalloc(0); |
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361 | id = atoi(after[2]); |
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362 | id_to_name(id, MACHINE_TABLE, &name); |
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363 | strcpy(after[2], name); |
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364 | id = atoi(after[7]); |
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365 | id_to_name(id, USERS_TABLE, &name); |
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366 | strcpy(after[7], name); |
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367 | id = atoi(after[8]); |
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368 | id_to_name(id, LIST_TABLE, &name); |
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369 | strcpy(after[8], name); |
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370 | free(name); |
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371 | afterc = 12; |
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372 | break; |
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373 | case QUOTA_TABLE: |
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374 | strcpy(after[0], "?"); |
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375 | strcpy(after[1], argv[1]); |
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376 | strcpy(after[2], "?"); |
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377 | sprintf(stmt_buf, "SELECT q.quota, fs.name FROM quota q, filesys fs " |
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378 | "WHERE %s and fs.filsys_id = q.filsys_id and q.type = '%s'", |
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379 | qual, argv[1]); |
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380 | dosql(&(after[3])); |
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381 | afterc = 5; |
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382 | break; |
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383 | case LIST_TABLE: |
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384 | sprintf(stmt_buf, "SELECT l.name, l.active, l.publicflg, l.hidden, " |
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385 | "l.maillist, l.grouplist, l.gid, l.acl_type, l.acl_id, " |
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386 | "l.description, l.list_id, l.nfsgroup FROM list l WHERE %s", qual); |
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387 | dosql(after); |
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388 | afterc = 12; |
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389 | break; |
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390 | case IMEMBERS_TABLE: |
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391 | id = (int)(long)argv[0]; |
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392 | sprintf(stmt_buf, "SELECT active, publicflg, hidden, maillist, " |
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393 | "grouplist, gid, nfsgroup FROM list WHERE list_id = %d", id); |
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394 | dosql(&(after[3])); |
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395 | name = xmalloc(0); |
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396 | id_to_name(id, LIST_TABLE, &name); |
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397 | name2 = xmalloc(0); |
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398 | strcpy(after[0], name); |
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399 | strcpy(after[1], argv[1]); |
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400 | id = (int)(long)argv[2]; |
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401 | afterc = 11; |
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402 | if (!strcmp(after[1], "USER")) |
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403 | { |
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404 | id_to_name(id, USERS_TABLE, &name2); |
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405 | EXEC SQL SELECT status, users_id INTO :after[10], :after[12] |
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406 | FROM users WHERE users_id = :id; |
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407 | EXEC SQL SELECT list_id INTO :after[11] FROM list |
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408 | WHERE name = :name; |
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409 | afterc = 13; |
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410 | } |
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411 | else if (!strcmp(after[1], "LIST")) |
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412 | { |
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413 | id_to_name(id, LIST_TABLE, &name2); |
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414 | EXEC SQL SELECT list_id INTO :after[10] FROM list |
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415 | WHERE name = :name; |
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416 | sprintf(after[11], "%d", id); |
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417 | afterc = 12; |
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418 | } |
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419 | else if (!strcmp(after[1], "STRING") || !strcmp(after[1], "KERBEROS")) |
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420 | { |
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421 | id_to_name(id, STRINGS_TABLE, &name2); |
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422 | EXEC SQL SELECT list_id INTO :after[10] FROM list |
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423 | WHERE name = :name; |
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424 | } |
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425 | else if (!strcmp(after[1], "MACHINE")) |
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426 | { |
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427 | id_to_name(id, MACHINE_TABLE, &name2); |
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428 | EXEC SQL SELECT list_id INTO :after[10] FROM list |
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429 | WHERE name = :name; |
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430 | sprintf(after[11], "%d", id); |
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431 | afterc = 12; |
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432 | } |
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433 | strcpy(after[2], name2); |
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434 | free(name); |
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435 | free(name2); |
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436 | break; |
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437 | case NO_TABLE: |
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438 | afterc = 0; |
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439 | table = beforetable; |
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440 | break; |
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441 | default: |
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442 | /* |
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443 | com_err(whoami, 0, "requested incremental on unexpected table `%s'", |
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444 | table_name[table]); |
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445 | */ |
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446 | break; |
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447 | } |
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448 | |
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449 | iu = xmalloc(sizeof(struct iupdate)); |
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450 | iu->table = table_name[table]; |
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451 | iu->beforec = beforec; |
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452 | iu->before = copy_argv(before, beforec); |
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453 | iu->afterc = afterc; |
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454 | iu->after = copy_argv(after, afterc); |
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455 | sq_save_data(incremental_sq, iu); |
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456 | } |
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457 | |
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458 | void incremental_clear_after(void) |
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459 | { |
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460 | incremental_after(NO_TABLE, NULL, NULL); |
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461 | } |
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462 | |
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463 | |
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464 | /* Called when the current transaction is committed to start any queued |
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465 | * incremental updates. This caches the update table the first time it |
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466 | * is called. |
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467 | */ |
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468 | |
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469 | struct inc_cache { |
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470 | struct inc_cache *next; |
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471 | char *table, *service; |
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472 | }; |
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473 | |
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474 | |
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475 | void incremental_update(void) |
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476 | { |
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477 | static int inited = 0; |
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478 | static struct inc_cache *cache; |
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479 | struct inc_cache *c; |
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480 | EXEC SQL BEGIN DECLARE SECTION; |
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481 | char tab[INCREMENTAL_TABLE_NAME_SIZE], serv[INCREMENTAL_SERVICE_SIZE]; |
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482 | EXEC SQL END DECLARE SECTION; |
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483 | struct iupdate *iu, *iu_save; |
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484 | |
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485 | if (!inited) |
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486 | { |
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487 | inited++; |
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488 | |
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489 | EXEC SQL DECLARE inc CURSOR FOR SELECT table_name, service |
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490 | FROM incremental; |
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491 | EXEC SQL OPEN inc; |
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492 | while (1) |
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493 | { |
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494 | EXEC SQL FETCH inc INTO :tab, :serv; |
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495 | if (sqlca.sqlcode) |
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496 | break; |
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497 | c = xmalloc(sizeof(struct inc_cache)); |
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498 | c->next = cache; |
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499 | c->table = xstrdup(strtrim(tab)); |
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500 | c->service = xstrdup(strtrim(serv)); |
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501 | cache = c; |
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502 | } |
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503 | EXEC SQL CLOSE inc; |
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504 | EXEC SQL COMMIT WORK; |
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505 | } |
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506 | |
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507 | while (sq_remove_data(incremental_sq, &iu)) |
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508 | { |
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509 | for (c = cache; c; c = c->next) |
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510 | { |
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511 | if (!strcmp(c->table, iu->table)) |
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512 | { |
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513 | iu->service = c->service; |
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514 | iu_save = xmalloc(sizeof(struct iupdate)); |
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515 | iu_save->service = iu->service; |
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516 | iu_save->table = iu->table; |
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517 | iu_save->beforec = iu->beforec; |
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518 | iu_save->afterc = iu->afterc; |
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519 | iu_save->before = copy_argv(iu->before, iu->beforec); |
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520 | iu_save->after = copy_argv(iu->after, iu->afterc); |
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521 | sq_save_data(incremental_exec, iu_save); |
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522 | } |
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523 | } |
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524 | if (!c) |
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525 | { |
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526 | free_argv(iu->before, iu->beforec); |
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527 | free_argv(iu->after, iu->afterc); |
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528 | free(iu); |
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529 | } |
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530 | } |
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531 | if (inc_running == 0) |
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532 | next_incremental(); |
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533 | } |
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534 | |
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535 | /* Pro*C 2.2.4 can't cope with the sigset_t below, at least in Solaris 2.6. |
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536 | We add DEFINE=_PROC_ to the proc invocation and then #ifndef that around |
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537 | this function so proc will pass it through without reading it. */ |
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538 | |
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539 | #ifndef _PROC_ |
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540 | void next_incremental(void) |
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541 | { |
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542 | struct iupdate *iu; |
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543 | char *argv[MAXARGC * 2 + 4], cafter[3], cbefore[3], prog[MAXPATHLEN]; |
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544 | int i; |
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545 | sigset_t sigs; |
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546 | |
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547 | if (!incremental_exec) |
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548 | incremental_init(); |
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549 | |
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550 | if (sq_empty(incremental_exec) || |
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551 | (inc_running && now - inc_started < INC_TIMEOUT)) |
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552 | return; |
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553 | |
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554 | if (inc_running) |
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555 | com_err(whoami, 0, "incremental timeout on pid %d", inc_pid); |
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556 | |
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557 | sq_remove_data(incremental_exec, &iu); |
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558 | argv[1] = iu->table; |
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559 | sprintf(cbefore, "%d", iu->beforec); |
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560 | argv[2] = cbefore; |
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561 | sprintf(cafter, "%d", iu->afterc); |
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562 | argv[3] = cafter; |
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563 | for (i = 0; i < iu->beforec; i++) |
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564 | argv[4 + i] = iu->before[i]; |
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565 | for (i = 0; i < iu->afterc; i++) |
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566 | argv[4 + iu->beforec + i] = iu->after[i]; |
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567 | |
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568 | sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service); |
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569 | argv[0] = prog; |
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570 | argv[4 + iu->beforec + iu->afterc] = 0; |
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571 | |
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572 | sigemptyset(&sigs); |
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573 | sigaddset(&sigs, SIGCHLD); |
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574 | sigprocmask(SIG_BLOCK, &sigs, NULL); |
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575 | inc_pid = vfork(); |
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576 | switch (inc_pid) |
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577 | { |
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578 | case 0: |
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579 | execv(prog, argv); |
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580 | _exit(1); |
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581 | case -1: |
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582 | com_err(whoami, 0, "Failed to start incremental update"); |
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583 | break; |
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584 | default: |
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585 | inc_running = 1; |
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586 | inc_started = now; |
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587 | } |
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588 | sigprocmask(SIG_UNBLOCK, &sigs, NULL); |
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589 | |
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590 | free_argv(iu->before, iu->beforec); |
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591 | free_argv(iu->after, iu->afterc); |
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592 | free(iu); |
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593 | } |
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594 | #endif |
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595 | |
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596 | /* Called when the current transaction is aborted to throw away any queued |
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597 | * incremental updates |
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598 | */ |
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599 | |
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600 | void incremental_flush(void) |
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601 | { |
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602 | struct iupdate *iu; |
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603 | |
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604 | while (sq_get_data(incremental_sq, &iu)) |
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605 | { |
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606 | free_argv(iu->before, iu->beforec); |
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607 | free_argv(iu->after, iu->afterc); |
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608 | free(iu); |
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609 | } |
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610 | sq_destroy(incremental_sq); |
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611 | incremental_sq = sq_create(); |
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612 | } |
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613 | |
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614 | |
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615 | char **copy_argv(char **argv, int argc) |
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616 | { |
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617 | char **ret = xmalloc(sizeof(char *) * argc); |
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618 | while (--argc >= 0) |
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619 | ret[argc] = xstrdup(strtrim(argv[argc])); |
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620 | return ret; |
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621 | } |
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622 | |
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623 | void free_argv(char **argv, int argc) |
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624 | { |
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625 | while (--argc >= 0) |
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626 | free(argv[argc]); |
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627 | free(argv); |
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628 | } |
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629 | |
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630 | int table_num(char *name) |
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631 | { |
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632 | int i; |
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633 | |
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634 | for (i = num_tables - 1; i; i--) |
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635 | { |
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636 | if (!strcmp(table_name[i], name)) |
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637 | break; |
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638 | } |
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639 | |
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640 | return i; /* 0 = "none" if no match */ |
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641 | } |
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