Mercurial > ~mikael > mcabber > hg
annotate mcabber/mcabber/utils.c @ 1984:b0470ef8669b
XEP 184: don't send receipts to buddies that have no presence subscription
In order to not leak our presence, do not send message delivery receipts to
senders who are not authorized to view our presence. (XEP-0184, section 8)
| author | Mikael Berthe <mikael@lilotux.net> |
|---|---|
| date | Sun, 27 Mar 2011 12:45:41 +0200 |
| parents | 3695266e16c7 |
| children | 0ba755e5dc48 |
| rev | line source |
|---|---|
| 241 | 1 /* |
| 2 * utils.c -- Various utility functions | |
| 393 | 3 * |
|
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4 * Copyright (C) 2005-2010 Mikael Berthe <mikael@lilotux.net> |
| 1599 | 5 * Some of the ut_* functions are derived from Cabber debug/log code. |
| 1361 | 6 * from_iso8601() comes from the Pidgin (libpurple) project. |
| 241 | 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 | |
| 1639 | 24 #include <config.h> |
| 25 | |
| 24 | 26 #include <stdio.h> |
| 27 #include <stdlib.h> | |
| 77 | 28 #include <string.h> |
| 24 | 29 #include <stdarg.h> |
|
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30 #include <errno.h> |
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31 |
| 1639 | 32 #ifdef HAVE_LIBIDN |
| 33 #include <idna.h> | |
| 34 #include <stringprep.h> | |
| 35 static char idnprep[1024]; | |
| 36 #endif | |
| 37 | |
| 38 #include <glib.h> | |
| 1598 | 39 #include <glib/gprintf.h> |
| 40 | |
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41 /* For Cygwin (thanks go to Yitzchak Scott-Thoennes) */ |
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42 #ifdef __CYGWIN__ |
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43 # define timezonevar |
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44 extern long timezone; |
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45 #endif |
| 24 | 46 #include <time.h> |
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47 #include <unistd.h> |
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48 #include <sys/types.h> |
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49 #include <sys/stat.h> |
| 452 | 50 #include <ctype.h> |
| 24 | 51 |
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52 #include "utils.h" |
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53 #include "logprint.h" |
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54 #include "settings.h" |
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55 #include "main.h" |
| 241 | 56 |
| 76 | 57 static int DebugEnabled; |
| 77 | 58 static char *FName; |
| 24 | 59 |
| 1598 | 60 // jidtodisp(jid) |
| 61 // Strips the resource part from the jid | |
| 62 // The caller should g_free the result after use. | |
| 63 char *jidtodisp(const char *fjid) | |
| 64 { | |
| 65 char *ptr; | |
| 66 char *alias; | |
| 67 | |
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68 if (!fjid) { |
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69 scr_LogPrint(LPRINT_LOGNORM, "** jidtodisp: NULL JID, " |
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70 "this is probably a bug, please report!"); |
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71 return NULL; |
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72 } |
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73 |
| 1598 | 74 alias = g_strdup(fjid); |
| 75 | |
| 76 if ((ptr = strchr(alias, JID_RESOURCE_SEPARATOR)) != NULL) { | |
| 77 *ptr = 0; | |
| 78 } | |
| 79 return alias; | |
| 80 } | |
| 81 | |
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82 char *jid_get_username(const char *fjid) |
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83 { |
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84 char *ptr; |
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85 char *username; |
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86 |
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87 username = g_strdup(fjid); |
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88 if ((ptr = strchr(username, JID_DOMAIN_SEPARATOR)) != NULL) { |
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89 *ptr = 0; |
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90 } |
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91 return username; |
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92 } |
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93 |
| 1598 | 94 char *compose_jid(const char *username, const char *servername, |
| 95 const char *resource) | |
| 96 { | |
| 97 char *fjid; | |
| 98 | |
| 99 if (!strchr(username, JID_DOMAIN_SEPARATOR)) { | |
| 100 fjid = g_strdup_printf("%s%c%s%c%s", username, | |
| 101 JID_DOMAIN_SEPARATOR, servername, | |
| 102 JID_RESOURCE_SEPARATOR, resource); | |
| 103 } else { | |
| 104 fjid = g_strdup_printf("%s%c%s", username, | |
| 105 JID_RESOURCE_SEPARATOR, resource); | |
| 106 } | |
| 107 return fjid; | |
| 108 } | |
| 109 | |
| 110 gboolean jid_equal(const char *jid1, const char *jid2) | |
| 111 { | |
| 112 char *a,*b; | |
| 113 int ret; | |
| 114 if (!jid1 && !jid2) | |
| 115 return TRUE; | |
| 116 if (!jid1 || !jid2) | |
| 117 return FALSE; | |
| 118 | |
| 119 a = jidtodisp(jid1); | |
| 120 b = jidtodisp(jid2); | |
| 121 ret = strcasecmp(a, b); | |
| 122 g_free(a); | |
| 123 g_free(b); | |
| 124 return (ret == 0) ? TRUE : FALSE; | |
| 125 } | |
| 126 | |
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127 // expand_filename(filename) |
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128 // Expand "~/" with the $HOME env. variable in a file name. |
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129 // The caller must free the string after use. |
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130 char *expand_filename(const char *fname) |
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131 { |
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132 if (!fname) |
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133 return NULL; |
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134 if (!strncmp(fname, "~/", 2)) { |
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135 char *homedir = getenv("HOME"); |
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136 if (homedir) |
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137 return g_strdup_printf("%s%s", homedir, fname+1); |
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138 } |
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139 return g_strdup(fname); |
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140 } |
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141 |
| 1598 | 142 void fingerprint_to_hex(const unsigned char *fpr, char hex[49]) |
| 143 { | |
| 144 int i; | |
| 145 char *p; | |
| 146 | |
| 147 for (p = hex, i = 0; i < 15; i++, p+=3) | |
| 148 g_sprintf(p, "%02X:", fpr[i]); | |
| 149 g_sprintf(p, "%02X", fpr[i]); | |
| 150 hex[48] = '\0'; | |
| 151 } | |
| 152 | |
| 153 gboolean hex_to_fingerprint(const char *hex, char fpr[16]) | |
| 154 { | |
| 155 int i; | |
| 156 char *p; | |
| 157 | |
| 158 if (strlen(hex) != 47) | |
| 159 return FALSE; | |
| 160 for (i = 0, p = (char*)hex; *p && *(p+1); i++, p += 3) | |
| 161 fpr[i] = (char) g_ascii_strtoull (p, NULL, 16); | |
| 162 return TRUE; | |
| 163 } | |
| 164 | |
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165 static gboolean tracelog_create(void) |
| 24 | 166 { |
| 77 | 167 FILE *fp; |
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168 struct stat buf; |
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169 int err; |
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170 char *v; |
| 77 | 171 |
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172 fp = fopen(FName, "a"); |
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173 if (!fp) { |
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174 scr_LogPrint(LPRINT_NORMAL, "ERROR: Cannot open tracelog file: %s!", |
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175 strerror(errno)); |
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176 return FALSE; |
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177 } |
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178 |
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179 err = fstat(fileno(fp), &buf); |
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180 if (err || buf.st_uid != geteuid()) { |
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181 fclose(fp); |
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182 if (err) |
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183 scr_LogPrint(LPRINT_NORMAL, "ERROR: cannot stat the tracelog file: %s!", |
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184 strerror(errno)); |
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185 else |
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186 scr_LogPrint(LPRINT_NORMAL, "ERROR: tracelog file does not belong to you!"); |
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187 return FALSE; |
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188 } |
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189 fchmod(fileno(fp), S_IRUSR|S_IWUSR); |
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190 |
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191 v = mcabber_version(); |
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192 fprintf(fp, "New trace log started. MCabber version %s\n" |
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193 "----------------------\n", v); |
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194 g_free(v); |
| 24 | 195 fclose(fp); |
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196 return TRUE; |
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197 } |
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198 |
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199 static gchar *tracelog_level_guard(const gchar *key, const gchar *new_value) |
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200 { |
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201 int new_level = 0; |
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202 if (new_value) |
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203 new_level = atoi(new_value); |
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204 if (DebugEnabled < 1 && new_level > 0 && FName && !tracelog_create()) |
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205 DebugEnabled = 0; |
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206 else |
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207 DebugEnabled = new_level; |
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208 return g_strdup(new_value); |
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209 } |
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210 |
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211 static gchar *tracelog_file_guard(const gchar *key, const gchar *new_value) |
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212 { |
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213 gchar *new_fname = NULL; |
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214 |
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215 if (new_value) |
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216 new_fname = expand_filename(new_value); |
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217 |
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218 if (g_strcmp0(FName, new_fname)) { |
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219 g_free(FName); |
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220 FName = new_fname; |
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221 if (DebugEnabled > 0 && !tracelog_create()) { |
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222 g_free(FName); |
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223 FName = NULL; |
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224 } |
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225 } else |
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226 g_free(new_fname); |
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227 |
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228 return g_strdup(new_value); |
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229 } |
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230 |
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231 // ut_init_debug() |
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232 // Installs otpion guards before initial config file parsing. |
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233 void ut_init_debug(void) |
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234 { |
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235 DebugEnabled = 0; |
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236 FName = NULL; |
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237 settings_set_guard("tracelog_level", tracelog_level_guard); |
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238 settings_set_guard("tracelog_file", tracelog_file_guard); |
| 24 | 239 } |
| 240 | |
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241 void ut_write_log(unsigned int flag, const char *data) |
| 24 | 242 { |
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243 if (!DebugEnabled || !FName) return; |
| 393 | 244 |
| 1617 | 245 if (((DebugEnabled >= 2) && (flag & (LPRINT_LOG|LPRINT_DEBUG))) || |
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246 ((DebugEnabled == 1) && (flag & LPRINT_LOG))) { |
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247 FILE *fp = fopen(FName, "a+"); |
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248 if (!fp) { |
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249 scr_LogPrint(LPRINT_NORMAL, "ERROR: Cannot open tracelog file: %s.", |
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250 strerror(errno)); |
|
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251 return; |
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252 } |
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253 if (fputs(data, fp) == EOF) |
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254 scr_LogPrint(LPRINT_NORMAL, "ERROR: Cannot write to tracelog file."); |
| 24 | 255 fclose(fp); |
| 256 } | |
| 257 } | |
| 258 | |
|
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259 // checkset_perm(name, setmode) |
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260 // Check the permissions of the "name" file/dir |
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261 // If setmode is true, correct the permissions if they are wrong |
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262 // Return values: -1 == bad file/dir, 0 == success, 1 == cannot correct |
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263 int checkset_perm(const char *name, unsigned int setmode) |
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264 { |
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265 int fd; |
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266 struct stat buf; |
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267 |
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268 #ifdef __CYGWIN__ |
| 1460 | 269 // Permission checking isn't efficient on Cygwin |
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270 return 0; |
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271 #endif |
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272 |
|
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273 fd = stat(name, &buf); |
|
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274 if (fd == -1) return -1; |
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275 |
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276 if (buf.st_uid != geteuid()) { |
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277 scr_LogPrint(LPRINT_LOGNORM, "Wrong file owner [%s]", name); |
|
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278 return 1; |
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279 } |
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280 |
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281 if (buf.st_mode & (S_IRGRP | S_IWGRP | S_IXGRP) || |
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282 buf.st_mode & (S_IROTH | S_IWOTH | S_IXOTH)) { |
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283 if (setmode) { |
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284 mode_t newmode = 0; |
|
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285 scr_LogPrint(LPRINT_LOGNORM, "Bad permissions [%s]", name); |
|
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286 if (S_ISDIR(buf.st_mode)) |
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287 newmode |= S_IXUSR; |
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288 newmode |= S_IRUSR | S_IWUSR; |
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289 if (chmod(name, newmode)) { |
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290 scr_LogPrint(LPRINT_LOGNORM, "WARNING: Failed to correct permissions!"); |
|
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291 return 1; |
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292 } |
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293 scr_LogPrint(LPRINT_LOGNORM, "Permissions have been corrected"); |
|
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294 } else { |
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295 scr_LogPrint(LPRINT_LOGNORM, "WARNING: Bad permissions [%s]", name); |
|
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296 return 1; |
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297 } |
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298 } |
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299 |
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300 return 0; |
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301 } |
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302 |
|
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303 const char *ut_get_tmpdir(void) |
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304 { |
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305 static const char *tmpdir; |
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306 const char *tmpvars[] = { "MCABBERTMPDIR", "TMP", "TMPDIR", "TEMP" }; |
| 735 | 307 unsigned int i; |
|
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308 |
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309 if (tmpdir) |
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310 return tmpdir; |
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311 |
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312 for (i = 0; i < (sizeof(tmpvars) / sizeof(const char *)); i++) { |
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313 tmpdir = getenv(tmpvars[i]); |
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314 if (tmpdir && tmpdir[0] && tmpdir[0] == '/' && tmpdir[1]) { |
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315 // Looks ok. |
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316 return tmpdir; |
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317 } |
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318 } |
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319 |
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320 // Default temporary directory |
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321 tmpdir = "/tmp"; |
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322 return tmpdir; |
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323 } |
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324 |
| 241 | 325 // to_iso8601(dststr, timestamp) |
| 326 // Convert timestamp to iso8601 format, and store it in dststr. | |
| 327 // NOTE: dststr should be at last 19 chars long. | |
| 328 // Return should be 0 | |
| 329 int to_iso8601(char *dststr, time_t timestamp) | |
| 330 { | |
| 331 struct tm *tm_time; | |
| 332 int ret; | |
| 333 | |
| 334 tm_time = gmtime(×tamp); | |
| 335 | |
| 336 ret = snprintf(dststr, 19, "%.4d%02d%02dT%02d:%02d:%02dZ", | |
|
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337 (int)(1900+tm_time->tm_year), tm_time->tm_mon+1, tm_time->tm_mday, |
| 241 | 338 tm_time->tm_hour, tm_time->tm_min, tm_time->tm_sec); |
| 339 | |
| 340 return ((ret == -1) ? -1 : 0); | |
| 341 } | |
| 342 | |
| 343 // from_iso8601(timestamp, utc) | |
| 1361 | 344 // This function came from the Pidgin project, gaim_str_to_time(). |
| 241 | 345 // (Actually date may not be pure iso-8601) |
| 346 // Thanks, guys! | |
|
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347 // ** Modified by somian 10 Apr 2006 with advice from ysth. |
| 241 | 348 time_t from_iso8601(const char *timestamp, int utc) |
| 349 { | |
| 350 struct tm t; | |
| 351 time_t retval = 0; | |
| 352 char buf[32]; | |
| 353 char *c; | |
| 354 int tzoff = 0; | |
|
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355 int hms_succ = 0; |
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356 int tmpyear; |
| 241 | 357 |
| 358 time(&retval); | |
| 359 localtime_r(&retval, &t); | |
| 360 | |
|
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361 /* Reset time to midnight (00:00:00) */ |
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362 t.tm_hour = t.tm_min = t.tm_sec = 0; |
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363 |
| 241 | 364 snprintf(buf, sizeof(buf), "%s", timestamp); |
| 365 c = buf; | |
| 366 | |
| 367 /* 4 digit year */ | |
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368 if (!sscanf(c, "%04d", &tmpyear)) return 0; |
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369 t.tm_year = tmpyear; |
| 241 | 370 c+=4; |
| 371 if (*c == '-') | |
| 372 c++; | |
| 373 | |
| 374 t.tm_year -= 1900; | |
| 375 | |
| 376 /* 2 digit month */ | |
| 377 if (!sscanf(c, "%02d", &t.tm_mon)) return 0; | |
| 378 c+=2; | |
| 379 if (*c == '-') | |
| 380 c++; | |
| 381 | |
| 382 t.tm_mon -= 1; | |
| 383 | |
| 384 /* 2 digit day */ | |
| 385 if (!sscanf(c, "%02d", &t.tm_mday)) return 0; | |
| 386 c+=2; | |
| 387 if (*c == 'T' || *c == '.') { /* we have more than a date, keep going */ | |
| 388 c++; /* skip the "T" */ | |
| 389 | |
| 390 /* 2 digit hour */ | |
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391 if (sscanf(c, "%02d:%02d:%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3) |
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392 { |
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393 hms_succ = 1; |
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394 c += 8; |
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395 } |
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396 else if (sscanf(c, "%02d%02d%02d", &t.tm_hour, &t.tm_min, &t.tm_sec) == 3) |
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397 { |
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398 hms_succ = 1; |
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399 c += 6; |
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400 } |
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401 |
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402 if (hms_succ) { |
| 241 | 403 int tzhrs, tzmins; |
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404 |
| 241 | 405 if (*c == '.') /* dealing with precision we don't care about */ |
| 406 c += 4; | |
| 407 | |
| 408 if ((*c == '+' || *c == '-') && | |
| 409 sscanf(c+1, "%02d:%02d", &tzhrs, &tzmins)) { | |
| 410 tzoff = tzhrs*60*60 + tzmins*60; | |
| 411 if (*c == '+') | |
| 412 tzoff *= -1; | |
| 413 } | |
| 414 | |
| 415 if (tzoff || utc) { | |
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416 #ifdef HAVE_TM_GMTOFF |
| 241 | 417 tzoff += t.tm_gmtoff; |
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418 #else |
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419 # ifdef HAVE_TIMEZONE |
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420 tzset(); /* making sure */ |
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421 tzoff -= timezone; |
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422 # endif |
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423 #endif |
| 241 | 424 } |
| 425 } | |
| 426 } | |
| 427 | |
| 428 t.tm_isdst = -1; | |
| 429 | |
| 430 retval = mktime(&t); | |
| 431 | |
| 432 retval += tzoff; | |
| 433 | |
| 434 return retval; | |
| 435 } | |
| 419 | 436 |
| 452 | 437 /** |
| 438 * Derived from libjabber/jid.c, because the libjabber version is not | |
| 439 * really convenient for our usage. | |
| 440 * | |
| 441 * Check if the full JID is valid | |
| 442 * Return 0 if it is valid, non zero otherwise | |
| 443 */ | |
|
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444 int check_jid_syntax(const char *fjid) |
| 452 | 445 { |
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446 const char *str; |
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447 const char *domain, *resource; |
| 452 | 448 int domlen; |
| 1639 | 449 #ifdef HAVE_LIBIDN |
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450 char *idnpp; |
| 1639 | 451 int r; |
| 452 #endif | |
| 452 | 453 |
| 1058 | 454 if (!fjid) return 1; |
| 452 | 455 |
| 1058 | 456 domain = strchr(fjid, JID_DOMAIN_SEPARATOR); |
| 452 | 457 |
|
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458 /* the username is optional */ |
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459 if (!domain) { |
| 1058 | 460 domain = fjid; |
|
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461 } else { |
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462 /* node identifiers may not be longer than 1023 bytes */ |
| 1058 | 463 if ((domain == fjid) || (domain-fjid > 1023)) |
|
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464 return 1; |
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465 domain++; |
| 452 | 466 |
| 1639 | 467 #ifdef HAVE_LIBIDN |
| 468 idnpp = idnprep; | |
| 469 str = fjid; | |
| 470 while (*str != JID_DOMAIN_SEPARATOR) | |
| 471 *idnpp++ = *str++; | |
| 472 *idnpp = 0; | |
| 473 | |
| 474 r = stringprep(idnprep, 1023, 0, stringprep_xmpp_nodeprep); | |
| 475 if (r != STRINGPREP_OK || !idnprep[0]) | |
| 476 return 1; | |
| 477 /* the username looks okay */ | |
| 478 #else | |
|
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479 /* check for low and invalid ascii characters in the username */ |
| 1058 | 480 for (str = fjid; *str != JID_DOMAIN_SEPARATOR; str++) { |
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481 if (*str <= ' ' || *str == ':' || *str == JID_DOMAIN_SEPARATOR || |
|
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482 *str == '<' || *str == '>' || *str == '\'' || |
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483 *str == '"' || *str == '&') { |
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484 return 1; |
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485 } |
| 452 | 486 } |
|
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487 /* the username is okay as far as we can tell without LIBIDN */ |
| 1639 | 488 #endif |
| 452 | 489 } |
| 490 | |
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491 resource = strchr(domain, JID_RESOURCE_SEPARATOR); |
| 452 | 492 |
| 493 /* the resource is optional */ | |
| 494 if (resource) { | |
| 495 domlen = resource - domain; | |
| 496 resource++; | |
| 497 /* resources may not be longer than 1023 bytes */ | |
| 498 if ((*resource == '\0') || strlen(resource) > 1023) | |
| 499 return 1; | |
| 1639 | 500 #ifdef HAVE_LIBIDN |
| 501 strncpy(idnprep, resource, sizeof(idnprep)); | |
| 502 r = stringprep(idnprep, 1023, 0, stringprep_xmpp_resourceprep); | |
| 503 if (r != STRINGPREP_OK || !idnprep[0]) | |
| 504 return 1; | |
| 505 #endif | |
| 452 | 506 } else { |
| 507 domlen = strlen(domain); | |
| 508 } | |
| 509 | |
| 510 /* there must be a domain identifier */ | |
| 511 if (domlen == 0) return 1; | |
| 512 | |
| 513 /* and it must not be longer than 1023 bytes */ | |
| 514 if (domlen > 1023) return 1; | |
| 515 | |
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516 /* /.+/ is not a valid domain name pattern */ |
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517 for (str = domain; *str && *str != JID_RESOURCE_SEPARATOR; str++) |
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518 if (*str != '.') break; |
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519 if (!*str || *str == JID_RESOURCE_SEPARATOR) |
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520 return 1; /* domain contains only dots */ |
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521 |
| 1639 | 522 #ifdef HAVE_LIBIDN |
| 523 idnpp = idnprep; | |
| 524 str = domain; | |
| 525 while (*str != '\0' && *str != JID_RESOURCE_SEPARATOR) | |
| 526 *idnpp++ = *str++; | |
| 527 *idnpp = 0; | |
| 528 | |
| 529 r = stringprep_nameprep(idnprep, 1023); | |
| 530 if (r != STRINGPREP_OK || !idnprep[0]) | |
| 531 return 1; | |
| 532 | |
|
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533 if (idna_to_ascii_8z(idnprep, &idnpp, IDNA_USE_STD3_ASCII_RULES) != |
| 1639 | 534 IDNA_SUCCESS) |
| 535 return 1; | |
| 536 else | |
|
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537 free(idnpp); |
| 1639 | 538 #else |
| 452 | 539 /* make sure the hostname is valid characters */ |
|
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540 for (str = domain; *str != '\0' && *str != JID_RESOURCE_SEPARATOR; str++) { |
| 452 | 541 if (!(isalnum(*str) || *str == '.' || *str == '-' || *str == '_')) |
| 542 return 1; | |
| 543 } | |
| 1639 | 544 #endif |
| 452 | 545 |
| 1639 | 546 /* it's okay as far as we can tell */ |
| 452 | 547 return 0; |
| 548 } | |
| 549 | |
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550 |
| 1106 | 551 inline void mc_strtolower(char *str) |
| 452 | 552 { |
| 553 if (!str) return; | |
| 554 for ( ; *str; str++) | |
| 555 *str = tolower(*str); | |
| 556 } | |
|
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557 |
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558 // strip_arg_special_chars(string) |
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559 // Remove quotes and backslashes before an escaped quote |
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560 // Only quotes need a backslash |
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561 // Ex.: ["a b"] -> [a b]; [a\"b] -> [a"b] |
|
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562 void strip_arg_special_chars(char *s) |
|
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563 { |
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564 int instring = FALSE; |
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565 int escape = FALSE; |
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566 char *p; |
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567 |
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568 if (!s) return; |
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569 |
|
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570 for (p = s; *p; p++) { |
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571 if (*p == '"') { |
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572 if (!escape) { |
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573 instring = !instring; |
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574 strcpy(p, p+1); |
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575 p--; |
|
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576 } else |
|
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577 escape = FALSE; |
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578 } else if (*p == '\\') { |
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579 if (!escape) { |
|
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580 strcpy(p, p+1); |
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581 p--; |
|
551
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582 } |
|
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583 escape = !escape; |
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584 } else |
|
83e275dca409
Fix escaping bug in strip_arg_special_chars()
Mikael Berthe <mikael@lilotux.net>
parents:
1440
diff
changeset
|
585 escape = FALSE; |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
586 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
587 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
588 |
|
554
2424bbf0a6db
Some more work on do_room()
Mikael Berthe <mikael@lilotux.net>
parents:
553
diff
changeset
|
589 // split_arg(arg, n, preservelast) |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
590 // Split the string arg into a maximum of n pieces, taking care of |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
591 // double quotes. |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
592 // Return a null-terminated array of strings. This array should be freed |
|
1167
9726c78a91f3
Allow '~' (HOME directory) in config options
Mikael Berthe <mikael@lilotux.net>
parents:
1122
diff
changeset
|
593 // by the caller after use, for example with free_arg_lst(). |
|
559
4eb579399613
Fix a small bug in split_arg()
Mikael Berthe <mikael@lilotux.net>
parents:
556
diff
changeset
|
594 // If dontstriplast is true, the Nth argument isn't stripped (i.e. no |
|
4eb579399613
Fix a small bug in split_arg()
Mikael Berthe <mikael@lilotux.net>
parents:
556
diff
changeset
|
595 // processing of quote chars) |
|
554
2424bbf0a6db
Some more work on do_room()
Mikael Berthe <mikael@lilotux.net>
parents:
553
diff
changeset
|
596 char **split_arg(const char *arg, unsigned int n, int dontstriplast) |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
597 { |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
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parents:
524
diff
changeset
|
598 char **arglst; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
599 const char *p, *start, *end; |
| 735 | 600 unsigned int i = 0; |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
601 int instring = FALSE; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
602 int escape = FALSE; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
603 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
604 arglst = g_new0(char*, n+1); |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
605 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
606 if (!arg || !n) return arglst; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
607 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
608 // Skip leading space |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
609 for (start = arg; *start && *start == ' '; start++) ; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
610 // End of string pointer |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
611 for (end = start; *end; end++) ; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
612 // Skip trailing space |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
613 while (end > start+1 && *(end-1) == ' ') |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
614 end--; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
615 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
616 for (p = start; p < end; p++) { |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
617 if (*p == '"' && !escape) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
618 instring = !instring; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
619 if (*p == '\\' && !escape) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
620 escape = TRUE; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
621 else if (escape) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
622 escape = FALSE; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
623 if (*p == ' ' && !instring && i+1 < n) { |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
624 // end of parameter |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
625 *(arglst+i) = g_strndup(start, p-start); |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
626 strip_arg_special_chars(*(arglst+i)); |
| 556 | 627 for (start = p+1; *start && *start == ' '; start++) ; |
| 1367 | 628 p = start-1; |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
629 i++; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
630 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
631 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
632 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
633 if (start < end) { |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
634 *(arglst+i) = g_strndup(start, end-start); |
|
559
4eb579399613
Fix a small bug in split_arg()
Mikael Berthe <mikael@lilotux.net>
parents:
556
diff
changeset
|
635 if (!dontstriplast || i+1 < n) |
|
554
2424bbf0a6db
Some more work on do_room()
Mikael Berthe <mikael@lilotux.net>
parents:
553
diff
changeset
|
636 strip_arg_special_chars(*(arglst+i)); |
|
551
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
637 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
638 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
639 return arglst; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
640 } |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
641 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
642 // free_arg_lst(arglst) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
643 // Free an array allocated by split_arg() |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
644 void free_arg_lst(char **arglst) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
645 { |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
646 char **arg_elt; |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
647 |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
648 for (arg_elt = arglst; *arg_elt; arg_elt++) |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
649 g_free(*arg_elt); |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
650 g_free(arglst); |
|
c71699efa5cc
Add split_arg() / free_arg_lst()
Mikael Berthe <mikael@lilotux.net>
parents:
524
diff
changeset
|
651 } |
| 576 | 652 |
|
655
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
653 // replace_nl_with_dots(bufstr) |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
654 // Replace '\n' with "(...)" (or with a NUL if the string is too short) |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
655 void replace_nl_with_dots(char *bufstr) |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
656 { |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
657 char *p = strchr(bufstr, '\n'); |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
658 if (p) { |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
659 if (strlen(p) >= 5) |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
660 strcpy(p, "(...)"); |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
661 else |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
662 *p = 0; |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
663 } |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
664 } |
|
de6837908702
Use "(...)" when cutting a multi-line status message in the log window
Mikael Berthe <mikael@lilotux.net>
parents:
580
diff
changeset
|
665 |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
666 // ut_expand_tabs(text) |
|
1122
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
667 // Expand tabs and filter out some bad chars in string text. |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
668 // If there is no tab and no bad chars in the string, a pointer to text |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
669 // is returned (be careful _not_ to free the pointer in this case). |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
670 // If there are some tabs or bad chars, a new string with expanded chars |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
671 // and no bad chars is returned; this is up to the caller to free this |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
672 // string after use. |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
673 char *ut_expand_tabs(const char *text) |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
674 { |
|
1568
e89787ee40f7
Fix tab expansion when using say_to -f
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1531
diff
changeset
|
675 char *xtext, *linestart; |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
676 char *p, *q; |
|
1122
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
677 guint n = 0, bc = 0; |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
678 |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
679 xtext = (char*)text; |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
680 for (p=xtext; *p; p++) |
|
1122
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
681 if (*p == '\t') |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
682 n++; |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
683 else if (*p == '\x0d') |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
684 bc++; |
|
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
685 // XXX Are there other special chars we should filter out? |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
686 |
|
1122
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
687 if (!n && !bc) |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
688 return (char*)text; |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
689 |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
690 xtext = g_new(char, strlen(text) + 1 + 8*n); |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
691 p = (char*)text; |
|
1568
e89787ee40f7
Fix tab expansion when using say_to -f
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1531
diff
changeset
|
692 q = linestart = xtext; |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
693 do { |
|
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
694 if (*p == '\t') { |
|
1568
e89787ee40f7
Fix tab expansion when using say_to -f
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1531
diff
changeset
|
695 do { *q++ = ' '; } while ((q-linestart)%8); |
|
1122
648fe6f715a6
Filter out ^M (0x0d) characters in incoming messages
Mikael Berthe <mikael@lilotux.net>
parents:
1106
diff
changeset
|
696 } else if (*p != '\x0d') { |
|
727
1c3620668857
Expand tabs when reading history files
Mikael Berthe <mikael@lilotux.net>
parents:
699
diff
changeset
|
697 *q++ = *p; |
|
1568
e89787ee40f7
Fix tab expansion when using say_to -f
Myhailo Danylenko <isbear@ukrpost.net>
parents:
1531
diff
changeset
|
698 if (*p =='\n') |
|
e89787ee40f7
Fix tab expansion when using say_to -f
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parents:
1531
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|
699 linestart = q; |
|
727
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diff
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|
700 } |
|
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diff
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|
701 } while (*p++); |
|
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diff
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|
702 |
|
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diff
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|
703 return xtext; |
|
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diff
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|
704 } |
|
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|
705 |
|
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diff
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|
706 |
|
803
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parents:
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diff
changeset
|
707 /* Cygwin's newlib does not have strcasestr() */ |
|
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diff
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|
708 /* The author of the code before the endif is |
|
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diff
changeset
|
709 * Jeffrey Stedfast <fejj@ximian.com> |
|
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parents:
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diff
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|
710 * and this code is reusable in compliance with the GPL v2. -- somian */ |
|
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diff
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|
711 |
|
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parents:
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diff
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|
712 #if !defined(HAVE_STRCASESTR) |
|
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parents:
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diff
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|
713 |
|
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Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
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|
714 # define lowercase(c) (isupper ((int) (c)) ? tolower ((int) (c)) : (int) (c)) |
|
8f8d8f8157a2
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parents:
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diff
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|
715 # define bm_index(c, icase) ((icase) ? lowercase (c) : (int) (c)) |
|
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parents:
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diff
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|
716 # define bm_equal(c1, c2, icase) ((icase) ? lowercase (c1) == lowercase (c2) : (c1) == (c2)) |
|
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parents:
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diff
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|
717 |
|
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diff
changeset
|
718 /* FIXME: this is just a guess... should really do some performace tests to get an accurate measure */ |
|
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parents:
802
diff
changeset
|
719 # define bm_optimal(hlen, nlen) (((hlen) ? (hlen) > 20 : 1) && (nlen) > 10 ? 1 : 0) |
|
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diff
changeset
|
720 |
|
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diff
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|
721 static unsigned char * |
|
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parents:
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diff
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|
722 __boyer_moore (const unsigned char *haystack, size_t haystacklen, |
|
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parents:
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diff
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|
723 const unsigned char *needle, size_t needlelen, int icase) |
|
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diff
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|
724 { |
|
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parents:
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diff
changeset
|
725 register unsigned char *hc_ptr, *nc_ptr; |
|
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diff
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|
726 unsigned char *he_ptr, *ne_ptr, *h_ptr; |
|
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parents:
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diff
changeset
|
727 size_t skiptable[256], n; |
|
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diff
changeset
|
728 register int i; |
|
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parents:
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diff
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|
729 |
|
8f8d8f8157a2
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parents:
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diff
changeset
|
730 #ifdef BOYER_MOORE_CHECKS |
|
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Soren Andersen <somian@pobox.com>
parents:
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diff
changeset
|
731 /* we don't need to do these checks since memmem/strstr/etc do it already */ |
|
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diff
changeset
|
732 /* if the haystack is shorter than the needle then we can't possibly match */ |
|
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parents:
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diff
changeset
|
733 if (haystacklen < needlelen) |
|
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parents:
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diff
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|
734 return NULL; |
|
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802
diff
changeset
|
735 |
|
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parents:
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diff
changeset
|
736 /* instant match if the pattern buffer is 0-length */ |
|
8f8d8f8157a2
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parents:
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diff
changeset
|
737 if (needlelen == 0) |
|
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parents:
802
diff
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|
738 return (unsigned char *) haystack; |
|
8f8d8f8157a2
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parents:
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diff
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|
739 #endif /* BOYER_MOORE_CHECKS */ |
|
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parents:
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diff
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|
740 |
|
8f8d8f8157a2
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parents:
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diff
changeset
|
741 /* set a pointer at the end of each string */ |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
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diff
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|
742 ne_ptr = (unsigned char *) needle + needlelen - 1; |
|
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parents:
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diff
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|
743 he_ptr = (unsigned char *) haystack + haystacklen - 1; |
|
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parents:
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diff
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|
744 |
|
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
745 /* create our skip table */ |
|
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parents:
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diff
changeset
|
746 for (i = 0; i < 256; i++) |
|
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parents:
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diff
changeset
|
747 skiptable[i] = needlelen; |
|
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parents:
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diff
changeset
|
748 for (nc_ptr = (unsigned char *) needle; nc_ptr < ne_ptr; nc_ptr++) |
|
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parents:
802
diff
changeset
|
749 skiptable[bm_index (*nc_ptr, icase)] = (size_t) (ne_ptr - nc_ptr); |
|
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diff
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|
750 |
|
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802
diff
changeset
|
751 h_ptr = (unsigned char *) haystack; |
|
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parents:
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diff
changeset
|
752 while (haystacklen >= needlelen) { |
|
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parents:
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diff
changeset
|
753 hc_ptr = h_ptr + needlelen - 1; /* set the haystack compare pointer */ |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
754 nc_ptr = ne_ptr; /* set the needle compare pointer */ |
|
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parents:
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diff
changeset
|
755 |
|
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parents:
802
diff
changeset
|
756 /* work our way backwards till they don't match */ |
|
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parents:
802
diff
changeset
|
757 for (i = 0; nc_ptr > (unsigned char *) needle; nc_ptr--, hc_ptr--, i++) |
|
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parents:
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diff
changeset
|
758 if (!bm_equal (*nc_ptr, *hc_ptr, icase)) |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
759 break; |
|
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parents:
802
diff
changeset
|
760 |
|
8f8d8f8157a2
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parents:
802
diff
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|
761 if (!bm_equal (*nc_ptr, *hc_ptr, icase)) { |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
762 n = skiptable[bm_index (*hc_ptr, icase)]; |
|
8f8d8f8157a2
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
763 if (n == needlelen && i) |
|
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parents:
802
diff
changeset
|
764 if (bm_equal (*ne_ptr, ((unsigned char *) needle)[0], icase)) |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
765 n--; |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
766 h_ptr += n; |
|
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
767 haystacklen -= n; |
|
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parents:
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diff
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|
768 } else |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
769 return (unsigned char *) h_ptr; |
|
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parents:
802
diff
changeset
|
770 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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802
diff
changeset
|
771 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
772 return NULL; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
773 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
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|
774 |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
775 /* |
|
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parents:
802
diff
changeset
|
776 * strcasestr: |
|
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parents:
802
diff
changeset
|
777 * @haystack: string to search |
|
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parents:
802
diff
changeset
|
778 * @needle: substring to search for |
|
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parents:
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diff
changeset
|
779 * |
|
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parents:
802
diff
changeset
|
780 * Finds the first occurence of the substring @needle within the |
|
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
781 * string @haystack ignoring case. |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
782 * |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
783 * Returns a pointer to the beginning of the substring match within |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
784 * @haystack, or NULL if the substring is not found. |
|
8f8d8f8157a2
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
785 **/ |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
786 char * |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
787 strcasestr (const char *haystack, const char *needle) |
|
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parents:
802
diff
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|
788 { |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
789 register unsigned char *h, *n, *hc, *nc; |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
790 size_t needlelen; |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
791 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
792 needlelen = strlen (needle); |
|
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Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
793 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
794 if (needlelen == 0) { |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
795 return (char *) haystack; |
|
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Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
796 } else if (bm_optimal (0, needlelen)) { |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
797 return (char *) __boyer_moore ((const unsigned char *) haystack, |
|
8f8d8f8157a2
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
798 strlen (haystack), |
|
8f8d8f8157a2
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Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
799 (const unsigned char *) needle, |
|
8f8d8f8157a2
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parents:
802
diff
changeset
|
800 needlelen, 1); |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
801 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
802 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
803 h = (unsigned char *) haystack; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
804 n = (unsigned char *) needle; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
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parents:
802
diff
changeset
|
805 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
806 while (*(h + needlelen - 1)) { |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
807 if (lowercase (*h) == lowercase (*n)) { |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
808 for (hc = h + 1, nc = n + 1; *hc && *nc; hc++, nc++) |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
809 if (lowercase (*hc) != lowercase (*nc)) |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
810 break; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
811 |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
812 if (!*nc) |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
813 return (char *) h; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
814 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
815 h++; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
816 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
817 return NULL; |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
818 } |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
819 #endif /* !HAVE_STRCASESTR */ |
|
8f8d8f8157a2
Take care of the strcasestr lacking (Cygwin)
Soren Andersen <somian@pobox.com>
parents:
802
diff
changeset
|
820 |
| 1203 | 821 // startswith(str, word, ignore_case) |
| 1192 | 822 // Returns TRUE if string str starts with word. |
| 1203 | 823 int startswith(const char *str, const char *word, guint ignore_case) |
| 1192 | 824 { |
| 1203 | 825 if (ignore_case && !strncasecmp(str, word, strlen(word))) |
| 826 return TRUE; | |
| 827 else if (!ignore_case && !strncmp(str, word, strlen(word))) | |
| 1192 | 828 return TRUE; |
| 829 return FALSE; | |
| 830 } | |
| 831 | |
| 1811 | 832 /* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2: For Vim users... */ |