Mercurial > masqmail-0.2
annotate src/parse.c @ 131:d68f0cab0be5
fixed the use of max_size instead of max_size_delete
I wonder if this option had ever been used,
because it was broken until now
author | meillo@marmaro.de |
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date | Tue, 06 Jul 2010 13:02:30 +0200 (2010-07-06) |
parents | a80ebfa16cd5 |
children |
rev | line source |
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0 | 1 /* MasqMail |
2 Copyright (C) 1999-2001 Oliver Kurth | |
3 | |
4 This program is free software; you can redistribute it and/or modify | |
5 it under the terms of the GNU General Public License as published by | |
6 the Free Software Foundation; either version 2 of the License, or | |
7 (at your option) any later version. | |
8 | |
9 This program is distributed in the hope that it will be useful, | |
10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 GNU General Public License for more details. | |
13 | |
14 You should have received a copy of the GNU General Public License | |
15 along with this program; if not, write to the Free Software | |
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 */ | |
18 | |
19 #ifndef PARSE_TEST | |
20 #include "masqmail.h" | |
21 #endif | |
22 | |
23 /* This is really dangerous. I hope that I was careful enough, | |
24 but maybe there is some malformed address possible that causes | |
25 this to segfault or be caught in endless loops. | |
26 | |
27 If you find something like that, PLEASE mail the string to me | |
28 (no matter how idiotic it is), so that I can debug that. | |
29 Those things really should not happen. | |
30 */ | |
31 | |
32 static gchar *specials = "()<>@,;:\\\".[]`"; | |
33 | |
34 char *parse_error = NULL; | |
35 | |
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36 static gchar* |
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37 skip_comment(gchar * p) |
0 | 38 { |
39 | |
40 #ifdef PARSE_TEST | |
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41 g_print("skip_comment: %s\n", p); |
0 | 42 #endif |
43 | |
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44 p++; |
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45 while (*p && *p != ')') { |
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46 p++; |
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47 if (*p == '(') |
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48 p = skip_comment(p); |
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49 } |
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50 p++; |
0 | 51 |
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52 return p; |
0 | 53 } |
54 | |
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55 static gboolean |
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56 read_word(gchar * p, gchar ** b, gchar ** e) |
0 | 57 { |
58 #ifdef PARSE_TEST | |
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59 g_print("read_word: %s\n", p); |
0 | 60 #endif |
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61 /* eat leading spaces */ |
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62 while (*p && isspace(*p)) |
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63 p++; |
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64 |
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65 *b = p; |
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66 /* b = &p; */ |
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67 if (*p == '\"') { |
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68 /* quoted-string */ |
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69 p++; |
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70 while (*p && (*p != '\"')) |
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71 p++; |
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72 p++; |
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73 } else { |
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74 /* atom */ |
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75 while (*p && !strchr(specials, *p) && !iscntrl(*p) && !isspace(*p)) |
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76 p++; |
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77 } |
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78 *e = p; |
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79 return TRUE; |
0 | 80 } |
81 | |
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82 static gboolean |
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83 read_word_with_dots(gchar * p, gchar ** b, gchar ** e) |
0 | 84 { |
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85 gchar *b0 = p; |
0 | 86 |
87 #ifdef PARSE_TEST | |
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88 g_print("read_word_with_dots: %s\n", p); |
0 | 89 #endif |
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90 while (TRUE) { |
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91 if (!read_word(p, b, e)) |
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92 return FALSE; |
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93 p = *e; |
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94 if (*p != '.') |
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95 break; |
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96 p++; |
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97 } |
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98 *b = b0; |
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99 *e = p; |
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100 return TRUE; |
0 | 101 } |
102 | |
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103 static gboolean |
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104 read_domain(gchar * p, gchar ** b, gchar ** e) |
0 | 105 { |
106 #ifdef PARSE_TEST | |
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107 g_print("read_domain: %s\n", p); |
0 | 108 #endif |
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109 *b = p; |
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110 if (*p != '[') { |
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111 while (isalnum(*p) || (*p == '-') || (*p == '.')) |
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112 p++; |
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113 } else { |
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114 p++; |
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115 while (isalpha(*p) || (*p == '.')) |
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116 p++; |
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117 if (*p != ']') { |
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118 parse_error = g_strdup_printf("']' expected at end of literal address %s", *b); |
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119 return FALSE; |
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120 } |
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121 p++; |
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122 } |
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123 *e = p; |
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124 return TRUE; |
0 | 125 } |
126 | |
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127 gboolean |
15 | 128 parse_address_rfc822(gchar* string, gchar** local_begin, gchar** local_end, gchar** domain_begin, |
129 gchar** domain_end, gchar** address_end) | |
0 | 130 { |
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131 gint angle_brackets = 0; |
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132 |
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133 gchar *p = string; |
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134 gchar *b, *e; |
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135 |
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136 *local_begin = *local_end = NULL; |
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137 *domain_begin = *domain_end = NULL; |
0 | 138 |
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139 /* might be some memory left from previous call: */ |
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140 if (parse_error != NULL) { |
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141 g_free(parse_error); |
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142 parse_error = NULL; |
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143 } |
0 | 144 |
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145 /* leading spaces and angle brackets */ |
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146 while (*p && (isspace(*p) || (*p == '<'))) { |
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147 if (*p == '<') |
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148 angle_brackets++; |
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149 p++; |
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150 } |
0 | 151 |
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152 if (*p) { |
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153 while (TRUE) { |
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154 if (read_word_with_dots(p, &b, &e)) { |
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155 p = e; |
0 | 156 #ifdef PARSE_TEST |
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157 g_print("after read_word_with_dots: %s\n", p); |
0 | 158 #endif |
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159 /* eat white spaces and comments */ |
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160 while ((*p && (isspace(*p))) || (*p == '(')) { |
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161 if (*p == '(') { |
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162 if (!(p = skip_comment(p))) { |
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163 parse_error = g_strdup("missing right bracket ')'"); |
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164 return FALSE; |
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165 } |
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166 } else |
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167 p++; |
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168 } |
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169 /* we now have a non-space char that is not |
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170 the beginning of a comment */ |
0 | 171 |
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172 if (*p == '@') { |
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173 /* the last word was the local_part |
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174 of an addr-spec */ |
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175 *local_begin = b; |
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176 *local_end = e; |
0 | 177 #ifdef PARSE_TEST |
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178 g_print("found local part: %s\n", *local_begin); |
0 | 179 #endif |
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180 if (*p == '@') { |
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181 p++; /* skip @ */ |
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182 /* now the domain */ |
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183 if (read_domain(p, &b, &e)) { |
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184 p = e; |
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185 *domain_begin = b; |
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186 *domain_end = e; |
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187 } else |
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188 return FALSE; |
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189 } else { |
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190 /* unqualified? */ |
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191 *domain_begin = *domain_end = NULL; |
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192 } |
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193 break; |
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194 } else if (*p == '<') { |
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195 /* addr-spec follows */ |
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196 while (isspace(*p) || (*p == '<')) { |
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197 if (*p == '<') |
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198 angle_brackets++; |
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199 p++; |
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200 } |
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201 if (read_word_with_dots(p, &b, &e)) { |
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202 p = e; |
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203 *local_begin = b; |
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204 *local_end = e; |
0 | 205 #ifdef PARSE_TEST |
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206 g_print("found local part: %s\n", *local_begin); |
0 | 207 #endif |
10
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208 } else |
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209 return FALSE; |
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210 if (*p == '@') { |
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211 p++; |
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212 if (read_domain(p, &b, &e)) { |
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213 p = e; |
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214 *domain_begin = b; |
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215 *domain_end = e; |
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216 } else |
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217 return FALSE; |
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218 } else { |
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219 /* may be unqualified address */ |
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220 *domain_begin = *domain_end = NULL; |
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221 } |
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222 break; |
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223 } else if (!*p || *p == '>') { |
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224 *local_begin = b; |
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225 *local_end = e; |
0 | 226 #ifdef PARSE_TEST |
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227 g_print("found local part: %s\n", *local_begin); |
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228 #endif |
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229 *domain_begin = *domain_end = NULL; |
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230 break; |
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231 } else if (strchr(specials, *p) || iscntrl(*p) || isspace(*p)) { |
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232 parse_error = g_strdup_printf("unexpected character: %c", *p); |
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233 return FALSE; |
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234 } |
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235 } else |
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236 return FALSE; |
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237 } |
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238 /* trailing spaces and angle brackets */ |
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239 #ifdef PARSE_TEST |
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240 g_print("down counting trailing '>'\n"); |
0 | 241 #endif |
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242 while (*p && (isspace(*p) || (*p == '>'))) { |
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243 if (*p == '>') |
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244 angle_brackets--; |
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245 p++; |
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246 } |
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247 |
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248 *address_end = p; |
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249 |
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250 if (angle_brackets != 0) { |
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251 if (angle_brackets > 0) |
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252 parse_error = g_strdup("missing '>' at end of string"); |
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253 else |
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254 parse_error = g_strdup("superfluous '>' at end of string"); |
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255 return FALSE; |
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256 } else { |
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257 /* we successfully parsed the address */ |
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258 return TRUE; |
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259 } |
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260 /* we never get here */ |
0 | 261 } |
262 return FALSE; | |
263 } | |
264 | |
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265 gboolean |
15 | 266 parse_address_rfc821(gchar* string, gchar** local_begin, gchar** local_end, gchar** domain_begin, |
267 gchar** domain_end, gchar** address_end) | |
0 | 268 { |
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269 gint angle_brackets = 0; |
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270 |
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271 gchar *p = string; |
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272 gchar *b, *e; |
0 | 273 |
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274 *local_begin = *local_end = NULL; |
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275 *domain_begin = *domain_end = NULL; |
0 | 276 |
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277 /* might be some memory left from previous call: */ |
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278 if (parse_error != NULL) { |
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279 g_free(parse_error); |
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280 parse_error = NULL; |
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281 } |
0 | 282 |
10
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283 /* leading spaces and angle brackets */ |
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284 while (*p && (isspace(*p) || (*p == '<'))) { |
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285 if (*p == '<') |
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286 angle_brackets++; |
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287 p++; |
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288 } |
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289 |
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290 if (*p) { |
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291 while (TRUE) { |
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292 if (read_word_with_dots(p, &b, &e)) { |
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293 p = e; |
0 | 294 #ifdef PARSE_TEST |
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295 g_print("after read_word_with_dots: %s\n", p); |
0 | 296 #endif |
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297 *local_begin = b; |
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298 *local_end = e; |
0 | 299 #ifdef PARSE_TEST |
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300 g_print("found local part: %s\n", *local_begin); |
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301 g_print("local_end = %s\n", *local_end); |
0 | 302 #endif |
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303 if (!(*p) || isspace(*p) || (*p == '>')) { |
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304 /* unqualified ? */ |
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305 domain_begin = domain_end = NULL; |
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306 break; |
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307 } else if (*p == '@') { |
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308 p++; |
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309 if (read_domain(p, &b, &e)) { |
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310 p = e; |
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311 *domain_begin = b; |
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312 *domain_end = e; |
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313 } |
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314 break; |
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315 } else { |
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316 parse_error = g_strdup_printf ("unexpected character after local part '%c'", *p); |
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317 return FALSE; |
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318 } |
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319 } else |
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320 return FALSE; |
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321 } |
0 | 322 |
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323 /* trailing spaces and angle brackets */ |
0 | 324 #ifdef PARSE_TEST |
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325 g_print("down counting trailing '>'\n"); |
0 | 326 #endif |
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327 while (*p && (isspace(*p) || (*p == '>'))) { |
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328 if (*p == '>') |
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329 angle_brackets--; |
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330 p++; |
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331 } |
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332 *address_end = p; |
0 | 333 |
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334 if (angle_brackets != 0) { |
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335 if (angle_brackets > 0) |
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336 parse_error = g_strdup("missing '>' at end of string"); |
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337 else |
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338 parse_error = g_strdup("superfluous '>' at end of string"); |
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339 return FALSE; |
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340 } else { |
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341 /* we successfully parsed the address */ |
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342 return TRUE; |
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343 } |
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344 /* we never get here */ |
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345 } |
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346 return FALSE; |
0 | 347 } |
348 | |
349 /* | |
350 allocate address, reading from string. | |
351 On failure, returns NULL. | |
114 | 352 after call, end contains a pointer to the end of the parsed string |
0 | 353 end may be NULL, if we are not interested. |
354 | |
355 parses both rfc 821 and rfc 822 addresses, depending on flag is_rfc821 | |
356 */ | |
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357 address* |
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358 _create_address(gchar * string, gchar ** end, gboolean is_rfc821) |
0 | 359 { |
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360 gchar *loc_beg, *loc_end; |
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361 gchar *dom_beg, *dom_end; |
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362 gchar *addr_end; |
0 | 363 |
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364 if (string && (string[0] == 0)) { |
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365 address *addr = g_malloc(sizeof(address)); |
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366 addr->address = g_strdup(""); |
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367 addr->local_part = g_strdup(""); |
15 | 368 addr->domain = g_strdup(""); /* 'NULL' address (failure notice), |
369 "" makes sure it will not be qualified with a hostname */ | |
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370 return addr; |
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371 } |
0 | 372 |
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373 if (is_rfc821 |
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374 ? parse_address_rfc821(string, &loc_beg, &loc_end, &dom_beg, &dom_end, &addr_end) |
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375 : parse_address_rfc822(string, &loc_beg, &loc_end, &dom_beg, &dom_end, &addr_end)) |
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376 { |
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377 address *addr = g_malloc(sizeof(address)); |
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378 gchar *p = addr_end; |
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379 |
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380 memset(addr, 0, sizeof(address)); |
0 | 381 |
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382 if (loc_beg[0] == '|') { |
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383 parse_error = g_strdup("no pipe allowed for RFC 822/821 address"); |
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384 return NULL; |
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385 } |
0 | 386 |
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387 while (*p && (*p != ',')) |
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388 p++; |
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389 addr->address = g_strndup(string, p - string); |
0 | 390 |
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391 addr->local_part = g_strndup(loc_beg, loc_end - loc_beg); |
0 | 392 |
393 #ifdef PARSE_TEST | |
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394 g_print("addr->local_part = %s\n", addr->local_part); |
0 | 395 #endif |
396 | |
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397 if (dom_beg != NULL) { |
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398 addr->domain = g_strndup(dom_beg, dom_end - dom_beg); |
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399 } else { |
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400 if (addr->local_part[0] == 0) |
15 | 401 addr->domain = g_strdup(""); /* 'NULL' address (failure notice), |
402 "" makes sure it will not be qualified with a hostname */ | |
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403 else |
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404 addr->domain = NULL; |
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405 } |
0 | 406 |
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407 if (end != NULL) |
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408 *end = p; |
0 | 409 |
410 #ifndef PARSE_TEST | |
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411 addr_unmark_delivered(addr); |
0 | 412 #endif |
413 | |
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414 return addr; |
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415 } |
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416 return NULL; |
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417 } |
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418 |
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419 address* |
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420 create_address_rfc822(gchar * string, gchar ** end) |
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421 { |
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422 return _create_address(string, end, FALSE); |
0 | 423 } |
424 | |
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425 address* |
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426 create_address_rfc821(gchar * string, gchar ** end) |
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427 { |
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428 return _create_address(string, end, TRUE); |
0 | 429 } |
430 | |
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431 GList* |
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432 addr_list_append_rfc822(GList * addr_list, gchar * string, gchar * domain) |
0 | 433 { |
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434 gchar *p = string; |
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435 gchar *end; |
0 | 436 |
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437 while (*p) { |
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438 address *addr = _create_address(p, &end, FALSE); |
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439 if (addr) { |
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440 if (domain) |
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441 if (addr->domain == NULL) |
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442 addr->domain = g_strdup(domain); |
0 | 443 |
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444 addr_list = g_list_append(addr_list, addr); |
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445 p = end; |
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446 } else |
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447 break; |
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448 while (*p == ',' || isspace(*p)) |
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449 p++; |
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450 } |
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451 return addr_list; |
0 | 452 } |