Mercurial > ~mikael > mcabber > hg
annotate mcabber/src/utils.c @ 524:05c0e55c4bb1
Pass message body to external command
Introduce 2 new options: event_log_files & event_log_dir
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Sun, 20 Nov 2005 00:08:49 +0100 |
| parents | 339e85418b49 |
| children | c71699efa5cc |
| rev | line source |
|---|---|
| 241 | 1 /* |
| 2 * utils.c -- Various utility functions | |
| 393 | 3 * |
| 241 | 4 * Copyright (C) 2005 Mikael Berthe <bmikael@lists.lilotux.net> |
| 5 * ut_* functions are derived from Cabber debug/log code. | |
| 6 * from_iso8601() comes from the Gaim project. | |
| 7 * | |
| 8 * This program is free software; you can redistribute it and/or modify | |
| 9 * it under the terms of the GNU General Public License as published by | |
| 10 * the Free Software Foundation; either version 2 of the License, or (at | |
| 11 * your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 * General Public License for more details. | |
| 17 * | |
| 18 * You should have received a copy of the GNU General Public License | |
| 19 * along with this program; if not, write to the Free Software | |
| 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
| 21 * USA | |
| 22 */ | |
| 23 | |
| 24 | 24 #include <stdio.h> |
| 25 #include <stdlib.h> | |
| 77 | 26 #include <string.h> |
| 24 | 27 #include <stdarg.h> |
| 28 #include <time.h> | |
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29 #include <unistd.h> |
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30 #include <sys/types.h> |
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31 #include <sys/stat.h> |
| 452 | 32 #include <ctype.h> |
| 24 | 33 |
| 241 | 34 #include <config.h> |
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35 #include "logprint.h" |
| 241 | 36 |
| 76 | 37 static int DebugEnabled; |
| 77 | 38 static char *FName; |
| 24 | 39 |
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40 void ut_InitDebug(unsigned int level, const char *filename) |
| 24 | 41 { |
| 77 | 42 FILE *fp; |
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43 struct stat buf; |
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44 int err; |
| 77 | 45 |
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46 if (level < 1) { |
| 138 | 47 DebugEnabled = 0; |
| 48 FName = NULL; | |
| 49 return; | |
| 50 } | |
| 51 | |
| 52 if (filename) | |
| 53 FName = strdup(filename); | |
| 77 | 54 else { |
| 138 | 55 FName = getenv("HOME"); |
| 56 if (!FName) | |
| 57 FName = "/tmp/mcabberlog"; | |
| 58 else { | |
| 59 char *tmpname = malloc(strlen(FName) + 12); | |
| 60 strcpy(tmpname, FName); | |
| 61 strcat(tmpname, "/mcabberlog"); | |
| 62 FName = tmpname; | |
| 63 } | |
| 77 | 64 } |
| 24 | 65 |
| 66 DebugEnabled = level; | |
| 76 | 67 |
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68 fp = fopen(FName, "a"); |
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69 if (!fp) { |
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70 fprintf(stderr, "ERROR: Cannot open tracelog file\n"); |
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71 return; |
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72 } |
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73 |
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74 err = fstat(fileno(fp), &buf); |
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75 if (err || buf.st_uid != geteuid()) { |
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76 fclose(fp); |
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77 DebugEnabled = 0; |
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78 FName = NULL; |
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79 if (err) { |
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80 fprintf(stderr, "ERROR: cannot stat the tracelog file!\n"); |
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81 } else { |
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82 fprintf(stderr, "ERROR: tracelog file does not belong to you!\n"); |
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83 } |
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84 return; |
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85 } |
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86 fchmod(fileno(fp), S_IRUSR|S_IWUSR); |
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87 |
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88 fprintf(fp, "New trace log started.\n" |
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89 "----------------------\n"); |
| 24 | 90 fclose(fp); |
| 91 } | |
| 92 | |
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93 void ut_WriteLog(unsigned int flag, const char *data) |
| 24 | 94 { |
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95 if (!DebugEnabled || !FName) return; |
| 393 | 96 |
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97 if (((DebugEnabled == 2) && (flag & (LPRINT_LOG|LPRINT_DEBUG))) || |
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98 ((DebugEnabled == 1) && (flag & LPRINT_LOG))) { |
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99 FILE *fp = fopen(FName, "a+"); |
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100 if (!fp) { |
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101 scr_LogPrint(LPRINT_NORMAL, "ERROR: Cannot open tracelog file"); |
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102 return; |
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103 } |
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104 fputs(data, fp); |
| 24 | 105 fclose(fp); |
| 106 } | |
| 107 } | |
| 108 | |
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109 // checkset_perm(name, setmode) |
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110 // Check the permissions of the "name" file/dir |
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111 // If setmode is true, correct the permissions if they are wrong |
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112 // Return values: -1 == bad file/dir, 0 == success, 1 == cannot correct |
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113 int checkset_perm(const char *name, unsigned int setmode) |
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114 { |
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115 int fd; |
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116 struct stat buf; |
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117 |
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118 fd = lstat(name, &buf); |
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119 if (fd == -1) return -1; |
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120 |
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121 if (buf.st_uid != geteuid()) { |
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122 scr_LogPrint(LPRINT_LOGNORM, "Wrong file owner [%s]", name); |
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123 return 1; |
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124 } |
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125 |
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126 if (buf.st_mode & (S_IRGRP | S_IWGRP | S_IXGRP) || |
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127 buf.st_mode & (S_IROTH | S_IWOTH | S_IXOTH)) { |
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128 if (setmode) { |
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129 mode_t newmode = 0; |
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130 scr_LogPrint(LPRINT_LOGNORM, "Bad permissions [%s]", name); |
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131 if (S_ISDIR(buf.st_mode)) |
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132 newmode |= S_IXUSR; |
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133 newmode |= S_IRUSR | S_IWUSR; |
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134 if (chmod(name, newmode)) { |
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135 scr_LogPrint(LPRINT_LOGNORM, "WARNING: Failed to correct permissions!"); |
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136 return 1; |
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137 } |
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138 scr_LogPrint(LPRINT_LOGNORM, "Permissions have been corrected"); |
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139 } else { |
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140 scr_LogPrint(LPRINT_LOGNORM, "WARNING: Bad permissions [%s]", name); |
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141 return 1; |
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142 } |
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143 } |
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144 |
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145 return 0; |
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146 } |
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147 |
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148 const char *ut_get_tmpdir(void) |
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149 { |
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150 static const char *tmpdir; |
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151 const char *tmpvars[] = { "MCABBERTMPDIR", "TMP", "TMPDIR", "TEMP" }; |
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152 int i; |
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153 |
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154 if (tmpdir) |
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155 return tmpdir; |
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156 |
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157 for (i = 0; i < (sizeof(tmpvars) / sizeof(const char *)); i++) { |
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158 tmpdir = getenv(tmpvars[i]); |
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159 if (tmpdir && tmpdir[0] && tmpdir[0] == '/' && tmpdir[1]) { |
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160 // Looks ok. |
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161 return tmpdir; |
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162 } |
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163 } |
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164 |
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165 // Default temporary directory |
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166 tmpdir = "/tmp"; |
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167 return tmpdir; |
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168 } |
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169 |
| 241 | 170 // to_iso8601(dststr, timestamp) |
| 171 // Convert timestamp to iso8601 format, and store it in dststr. | |
| 172 // NOTE: dststr should be at last 19 chars long. | |
| 173 // Return should be 0 | |
| 174 int to_iso8601(char *dststr, time_t timestamp) | |
| 175 { | |
| 176 struct tm *tm_time; | |
| 177 int ret; | |
| 178 | |
| 179 tm_time = gmtime(×tamp); | |
| 180 | |
| 181 ret = snprintf(dststr, 19, "%.4d%02d%02dT%02d:%02d:%02dZ", | |
| 182 1900+tm_time->tm_year, tm_time->tm_mon+1, tm_time->tm_mday, | |
| 183 tm_time->tm_hour, tm_time->tm_min, tm_time->tm_sec); | |
| 184 | |
| 185 return ((ret == -1) ? -1 : 0); | |
| 186 } | |
| 187 | |
| 188 // from_iso8601(timestamp, utc) | |
| 189 // This function comes from the Gaim project, gaim_str_to_time(). | |
| 190 // (Actually date may not be pure iso-8601) | |
| 191 // Thanks, guys! | |
| 192 time_t from_iso8601(const char *timestamp, int utc) | |
| 193 { | |
| 194 struct tm t; | |
| 195 time_t retval = 0; | |
| 196 char buf[32]; | |
| 197 char *c; | |
| 198 int tzoff = 0; | |
| 199 | |
| 200 time(&retval); | |
| 201 localtime_r(&retval, &t); | |
| 202 | |
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203 /* Reset time to midnight (00:00:00) */ |
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204 t.tm_hour = t.tm_min = t.tm_sec = 0; |
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205 |
| 241 | 206 snprintf(buf, sizeof(buf), "%s", timestamp); |
| 207 c = buf; | |
| 208 | |
| 209 /* 4 digit year */ | |
| 210 if (!sscanf(c, "%04d", &t.tm_year)) return 0; | |
| 211 c+=4; | |
| 212 if (*c == '-') | |
| 213 c++; | |
| 214 | |
| 215 t.tm_year -= 1900; | |
| 216 | |
| 217 /* 2 digit month */ | |
| 218 if (!sscanf(c, "%02d", &t.tm_mon)) return 0; | |
| 219 c+=2; | |
| 220 if (*c == '-') | |
| 221 c++; | |
| 222 | |
| 223 t.tm_mon -= 1; | |
| 224 | |
| 225 /* 2 digit day */ | |
| 226 if (!sscanf(c, "%02d", &t.tm_mday)) return 0; | |
| 227 c+=2; | |
| 228 if (*c == 'T' || *c == '.') { /* we have more than a date, keep going */ | |
| 229 c++; /* skip the "T" */ | |
| 230 | |
| 231 /* 2 digit hour */ | |
| 232 if (sscanf(c, "%02d:%02d:%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3 || | |
| 233 sscanf(c, "%02d%02d%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3) { | |
| 234 int tzhrs, tzmins; | |
| 235 c+=8; | |
| 236 if (*c == '.') /* dealing with precision we don't care about */ | |
| 237 c += 4; | |
| 238 | |
| 239 if ((*c == '+' || *c == '-') && | |
| 240 sscanf(c+1, "%02d:%02d", &tzhrs, &tzmins)) { | |
| 241 tzoff = tzhrs*60*60 + tzmins*60; | |
| 242 if (*c == '+') | |
| 243 tzoff *= -1; | |
| 244 } | |
| 245 | |
| 246 if (tzoff || utc) { | |
| 247 | |
| 248 //#ifdef HAVE_TM_GMTOFF | |
| 249 tzoff += t.tm_gmtoff; | |
| 250 //#else | |
| 251 //# ifdef HAVE_TIMEZONE | |
| 252 // tzset(); /* making sure */ | |
| 253 // tzoff -= timezone; | |
| 254 //# endif | |
| 255 //#endif | |
| 256 } | |
| 257 } | |
| 258 } | |
| 259 | |
| 260 t.tm_isdst = -1; | |
| 261 | |
| 262 retval = mktime(&t); | |
| 263 | |
| 264 retval += tzoff; | |
| 265 | |
| 266 return retval; | |
| 267 } | |
| 419 | 268 |
| 269 // Should only be used for delays < 1s | |
| 270 inline void safe_usleep(unsigned int usec) | |
| 271 { | |
| 272 struct timespec req; | |
| 273 req.tv_sec = 0; | |
| 274 req.tv_nsec = (long)usec * 1000L; | |
| 275 nanosleep(&req, NULL); | |
| 276 } | |
| 452 | 277 |
| 278 /** | |
| 279 * Derived from libjabber/jid.c, because the libjabber version is not | |
| 280 * really convenient for our usage. | |
| 281 * | |
| 282 * Check if the full JID is valid | |
| 283 * Return 0 if it is valid, non zero otherwise | |
| 284 */ | |
| 285 int check_jid_syntax(char *jid) | |
| 286 { | |
| 287 char *str; | |
| 288 char *domain, *resource; | |
| 289 int domlen; | |
| 290 | |
| 291 if (!jid) return 1; | |
| 292 | |
| 293 domain = strchr(jid, '@'); | |
| 294 | |
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295 /* the username is optional */ |
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296 if (!domain) { |
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297 domain = jid; |
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298 } else { |
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299 /* node identifiers may not be longer than 1023 bytes */ |
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300 if ((domain == jid) || (domain-jid > 1023)) |
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301 return 1; |
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302 domain++; |
| 452 | 303 |
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304 /* check for low and invalid ascii characters in the username */ |
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305 for (str = jid; *str != '@'; str++) { |
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306 if (*str <= 32 || *str == ':' || *str == '@' || |
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307 *str == '<' || *str == '>' || *str == '\'' || |
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308 *str == '"' || *str == '&') { |
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309 return 1; |
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310 } |
| 452 | 311 } |
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312 /* the username is okay as far as we can tell without LIBIDN */ |
| 452 | 313 } |
| 314 | |
| 315 resource = strchr(domain, '/'); | |
| 316 | |
| 317 /* the resource is optional */ | |
| 318 if (resource) { | |
| 319 domlen = resource - domain; | |
| 320 resource++; | |
| 321 /* resources may not be longer than 1023 bytes */ | |
| 322 if ((*resource == '\0') || strlen(resource) > 1023) | |
| 323 return 1; | |
| 324 } else { | |
| 325 domlen = strlen(domain); | |
| 326 } | |
| 327 | |
| 328 /* there must be a domain identifier */ | |
| 329 if (domlen == 0) return 1; | |
| 330 | |
| 331 /* and it must not be longer than 1023 bytes */ | |
| 332 if (domlen > 1023) return 1; | |
| 333 | |
| 334 /* make sure the hostname is valid characters */ | |
| 335 for (str = domain; *str != '\0' && *str != '/'; str++) { | |
| 336 if (!(isalnum(*str) || *str == '.' || *str == '-' || *str == '_')) | |
| 337 return 1; | |
| 338 } | |
| 339 | |
| 340 /* it's okay as far as we can tell without LIBIDN */ | |
| 341 return 0; | |
| 342 } | |
| 343 | |
| 344 void mc_strtolower(char *str) | |
| 345 { | |
| 346 if (!str) return; | |
| 347 for ( ; *str; str++) | |
| 348 *str = tolower(*str); | |
| 349 } |