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annotate src/alias.c @ 367:b27f66555ba8

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Reformated multiline comments to have leading asterisks on each line Now we use: /* ** comment */ This makes the indent style simpler, too.
author markus schnalke <meillo@marmaro.de>
date Thu, 20 Oct 2011 10:20:59 +0200
parents 41958685480d
children 028bc124d744
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
367
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1 /*
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2 ** MasqMail
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3 ** Copyright (C) 2000-2001 Oliver Kurth
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4 ** Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
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5 **
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6 ** This program is free software; you can redistribute it and/or modify
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7 ** it under the terms of the GNU General Public License as published by
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8 ** the Free Software Foundation; either version 2 of the License, or
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9 ** (at your option) any later version.
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10 **
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11 ** This program is distributed in the hope that it will be useful,
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12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 ** GNU General Public License for more details.
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15 **
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16 ** You should have received a copy of the GNU General Public License
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17 ** along with this program; if not, write to the Free Software
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18 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
0
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19 */
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20
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21 #include "masqmail.h"
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22 #include <fnmatch.h>
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23
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24 gboolean
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25 addr_is_local(address *addr)
0
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26 {
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27 GList *dom_node;
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28 GList *addr_node;
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29 address *a;
0
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30
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31 if (addr->domain == NULL) {
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32 return TRUE;
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33 }
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34 foreach(conf.local_hosts, dom_node) {
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35 /* Note: FNM_CASEFOLD is a GNU extension */
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36 if (fnmatch(dom_node->data, addr->domain, FNM_CASEFOLD) != 0) {
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37 /* no match, try next */
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38 continue;
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39 }
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40 foreach(conf.not_local_addresses, addr_node) {
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41 a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
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42 DEBUG(6) debugf("not_local_addresses: addr_node->data=%s a->address=%s\n",
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43 addr_node->data, a->address);
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44 if (addr_isequal(a, addr, conf.localpartcmp)) {
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45 destroy_address(a);
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46 /* in local_hosts but also in not_local_addresses */
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47 return FALSE;
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48 }
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49 destroy_address(a);
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50 }
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51 /* in local_hosts */
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52 return TRUE;
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53 }
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54 foreach(conf.local_addresses, addr_node) {
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55 a = create_address_qualified(addr_node->data, TRUE, conf.host_name);
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56 DEBUG(6) debugf("local_addresses: addr_node->data=%s a->address=%s\n",
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57 addr_node->data, a->address);
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58 if (addr_isequal(a, addr, conf.localpartcmp)) {
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59 destroy_address(a);
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60 /* in local_addresses */
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61 return TRUE;
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62 }
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63 destroy_address(a);
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64 }
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65 return FALSE;
0
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66 }
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67
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68 static GList*
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69 parse_list(gchar *line)
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70 {
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71 GList *list = NULL;
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72 gchar buf[256];
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73 gchar *p, *q;
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74
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75 p = line;
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76 while (*p != '\0') {
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77 q = buf;
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78 while (isspace(*p))
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79 p++;
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80 if (*p != '"') {
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81 while (*p && (*p != ',') && (q < buf + 255))
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82 *(q++) = *(p++);
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83 *q = '\0';
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84 } else {
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85 gboolean escape = FALSE;
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86 p++;
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87 while (*p && (*p != '"' || escape) && (q < buf + 255)) {
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88 if ((*p == '\\') && !escape)
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89 escape = TRUE;
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90 else {
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91 escape = FALSE;
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92 *(q++) = *p;
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93 }
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94 p++;
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95 }
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96 *q = '\0';
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97 while (*p && (*p != ','))
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98 p++;
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99 }
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100 list = g_list_append(list, g_strdup(g_strchomp(buf)));
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101 if (*p)
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102 p++;
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103 }
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104 return list;
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105 }
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106
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107 /*
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108 ** addr is assumed to be local and no pipe address nor not-to-expand
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109 */
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110 static GList*
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111 expand_one(GList *alias_table, address *addr)
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112 {
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113 GList *val_list;
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114 GList *val_node;
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115 GList *alias_list = NULL;
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116 GList *alias_node;
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117 gchar *val;
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118 address *alias_addr;
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119
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120 /* expand the local alias */
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121 DEBUG(6) debugf("alias: '%s' is local and will get expanded\n", addr->local_part);
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122
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123 if (strcasecmp(addr->local_part, "postmaster") == 0) {
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124 /*
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125 ** postmaster must always be matched caseless
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126 ** see RFC 822 and RFC 5321
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127 */
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128 val = (gchar *) table_find_func(alias_table, addr->local_part, strcasecmp);
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129 } else {
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130 val = (gchar *) table_find_func(alias_table, addr->local_part, conf.localpartcmp);
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131 }
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132 if (!val) {
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133 DEBUG(5) debugf("alias: '%s' is fully expanded, hence completed\n",
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134 addr->local_part);
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135 return g_list_append(NULL, addr);
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136 }
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137
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138 DEBUG(5) debugf("alias: '%s' -> '%s'\n", addr->local_part, val);
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139 val_list = parse_list(val);
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140 alias_list = NULL;
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141
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142 foreach(val_list, val_node) {
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143 gchar *val = (gchar *) (val_node->data);
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144 address *alias_addr;
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145 address *addr_parent = NULL;
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diff changeset
146
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147 DEBUG(6) debugf("alias: processing '%s'\n", val);
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148
239
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149 if (val[0] == '\\') {
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150 DEBUG(5) debugf("alias: '%s' is marked as final, hence completed\n", val);
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151 alias_addr = create_address_qualified(val+1, TRUE, conf.host_name);
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152 g_free(val);
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153 DEBUG(6) debugf("alias: address generated: '%s'\n",
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154 alias_addr->local_part);
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155 alias_list = g_list_append(alias_list, alias_addr);
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156 continue;
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157 }
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158
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159 if (val[0] == '|') {
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160 DEBUG(5) debugf("alias: '%s' is a pipe address\n", val);
309
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161 alias_addr = create_address_pipe(val);
239
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162 g_free(val);
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163 DEBUG(6) debugf("alias: pipe generated: %s\n",
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164 alias_addr->local_part);
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165 alias_list = g_list_append(alias_list, alias_addr);
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166 continue;
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167 }
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168
239
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169 alias_addr = create_address_qualified(val, TRUE, conf.host_name);
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170 g_free(val);
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171
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172 if (!addr_is_local(alias_addr)) {
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173 DEBUG(5) debugf("alias: '%s@%s' is non-local, hence completed\n",
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174 alias_addr->local_part, alias_addr->domain);
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175 alias_list = g_list_append(alias_list, alias_addr);
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176 continue;
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177 }
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diff changeset
178
242
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179 /* addr is local and to expand at this point */
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180 /* but first ... search in parents for loops: */
244
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181 if (addr_isequal_parent(addr, alias_addr, conf.localpartcmp)) {
239
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182 /* loop detected, ignore this path */
242
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183 logwrite(LOG_ALERT, "alias: detected loop, hence ignoring '%s'\n",
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184 alias_addr->local_part);
239
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185 continue;
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186 }
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187 alias_addr->parent = addr;
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188
239
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189 /* recurse */
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190 DEBUG(6) debugf("alias: >>\n");
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191 alias_node = expand_one(alias_table, alias_addr);
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192 DEBUG(6) debugf("alias: <<\n");
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193 if (alias_node) {
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194 alias_list = g_list_concat(alias_list, alias_node);
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195 }
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196 }
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197 g_list_free(val_list);
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198 addr->children = g_list_copy(alias_list);
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199
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200 return alias_list;
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201 }
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diff changeset
202
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diff changeset
203 GList*
366
41958685480d Switched to `type *name' style
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diff changeset
204 alias_expand(GList *alias_table, GList *rcpt_list, GList *non_rcpt_list)
239
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diff changeset
205 {
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206 GList *rcpt_node = NULL;
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207 GList *alias_list = NULL;
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208 GList *done_list = NULL;
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209 GList *rcpt_node_next = NULL;
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210 address *addr = NULL;
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211
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212 for (rcpt_node=g_list_copy(rcpt_list);
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diff changeset
213 rcpt_node;
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diff changeset
214 rcpt_node=g_list_next(rcpt_node)) {
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diff changeset
215
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216 addr = (address *) (rcpt_node->data);
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217 if (addr_is_local(addr)) {
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218 DEBUG(5) debugf("alias: (orig rcpt addr) expand local '%s'\n",
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diff changeset
219 addr->local_part);
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220 alias_list = expand_one(alias_table, addr);
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diff changeset
221 if (alias_list) {
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diff changeset
222 done_list = g_list_concat(done_list, alias_list);
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223 }
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224 } else {
239
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diff changeset
225 DEBUG(5) debugf("alias: (orig rcpt addr) don't expand non-local '%s@%s'\n",
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diff changeset
226 addr->local_part, addr->domain);
10
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227 done_list = g_list_append(done_list, addr);
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diff changeset
228 }
239
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diff changeset
229 }
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diff changeset
230
31ee44f45787 refactored alias.c heavily
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diff changeset
231 /* we're done if we don't have to remove rcpts */
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diff changeset
232 if (!non_rcpt_list) {
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diff changeset
233 return done_list;
0
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234 }
10
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diff changeset
235
239
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diff changeset
236 /* delete addresses of non_rcpt_list from done_list */
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diff changeset
237 for (rcpt_node = g_list_first(done_list); rcpt_node; rcpt_node = rcpt_node_next) {
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diff changeset
238 address *addr = (address *) (rcpt_node->data);
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diff changeset
239 GList *non_node;
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240
239
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diff changeset
241 rcpt_node_next = g_list_next(rcpt_node);
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diff changeset
242 foreach(non_rcpt_list, non_node) {
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diff changeset
243 address *non_addr = (address *) (non_node->data);
244
7082044c05c6 renamed `alias_local_cmp' to `localpartcmp'
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parents: 242
diff changeset
244 if (addr_isequal(addr, non_addr, conf.localpartcmp)) {
239
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diff changeset
245 done_list = g_list_remove_link(done_list, rcpt_node);
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diff changeset
246 g_list_free_1(rcpt_node);
367
b27f66555ba8 Reformated multiline comments to have leading asterisks on each line
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diff changeset
247 /*
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diff changeset
248 ** this address is still in the children
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diff changeset
249 ** lists of the original address, simply
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diff changeset
250 ** mark them delivered
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diff changeset
251 */
239
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diff changeset
252 addr_mark_delivered(addr);
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diff changeset
253 break;
10
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diff changeset
254 }
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255 }
0
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256 }
10
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diff changeset
257 return done_list;
0
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258 }