Mercurial > masqmail

annotate src/header.c @ 13:49dab67fe461

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code beautifying
author meillo@marmaro.de
date Wed, 29 Oct 2008 21:10:18 +0100
parents 26e34ae9a3e3
children f671821d8222
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1 /* MasqMail
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2 Copyright (C) 2000 Oliver Kurth
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3
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4 This program is free software; you can redistribute it and/or modify
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, write to the Free Software
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16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 */
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18 #include "masqmail.h"
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19
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20 header_name header_names[] = {
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21 {"From", HEAD_FROM,}
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22 ,
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23 {"Sender", HEAD_SENDER,}
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24 ,
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25 {"To", HEAD_TO,}
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26 ,
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27 {"Cc", HEAD_CC,}
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28 ,
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29 {"Bcc", HEAD_BCC,}
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30 ,
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31 {"Date", HEAD_DATE,}
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32 ,
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33 {"Message-Id", HEAD_MESSAGE_ID,}
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34 ,
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35 {"Reply-To", HEAD_REPLY_TO,}
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36 ,
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37 {"Subject", HEAD_SUBJECT,}
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38 ,
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39 {"Return-Path", HEAD_RETURN_PATH,}
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40 ,
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41 {"Envelope-To", HEAD_ENVELOPE_TO,}
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42 ,
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43 {"Received", HEAD_RECEIVED}
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44 ,
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45 };
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46
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47 /* this was borrowed from exim and slightly changed */
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48 gchar*
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49 rec_timestamp()
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50 {
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51 static gchar buf[64];
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52 int len;
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53
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54 time_t now = time(NULL);
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55 struct tm *t = localtime(&now);
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56
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57 int diff_hour, diff_min;
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58 struct tm local;
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59 struct tm *gmt;
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60
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61 memcpy(&local, t, sizeof(struct tm));
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62 gmt = gmtime(&now);
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63 diff_min = 60 * (local.tm_hour - gmt->tm_hour) + local.tm_min - gmt->tm_min;
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64 if (local.tm_year != gmt->tm_year)
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65 diff_min += (local.tm_year > gmt->tm_year) ? 1440 : -1440;
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66 else if (local.tm_yday != gmt->tm_yday)
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67 diff_min += (local.tm_yday > gmt->tm_yday) ? 1440 : -1440;
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68 diff_hour = diff_min / 60;
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69 diff_min = abs(diff_min - diff_hour * 60);
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70
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71 len = strftime(buf, sizeof(buf), "%a, ", &local);
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72 g_snprintf(buf + len, sizeof(buf) - len, "%02d ", local.tm_mday);
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73 len += strlen(buf + len);
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74 len += strftime(buf + len, sizeof(buf) - len, "%b %Y %H:%M:%S", &local);
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75 g_snprintf(buf + len, sizeof(buf) - len, " %+03d%02d", diff_hour, diff_min);
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76
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77 return buf;
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78 }
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79
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80 /* finds list of headers matching id
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81 if id == HEAD_UNKNOWN and header == NULL finds all unknown headers
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82 else finds all headers matching header
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83 */
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84 GList*
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85 find_header(GList * hdr_list, header_id id, gchar * hdr_str)
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86 {
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87 GList *found_list = NULL;
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88 GList *node;
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89
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90 if ((id != HEAD_UNKNOWN) || (hdr_str == NULL)) {
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91 foreach(hdr_list, node) {
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92 header *hdr = (header *) (node->data);
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93 if (hdr->id == id)
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94 found_list = g_list_append(found_list, hdr);
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95 }
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96 } else {
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97 foreach(hdr_list, node) {
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98 header *hdr = (header *) (node->data);
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99 gchar buf[64], *q = buf, *p = hdr->header;
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100
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101 while (*p != ':' && q < buf + 63 && *p)
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102 *(q++) = *(p++);
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103 *q = 0;
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104
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105 if (strcasecmp(buf, hdr_str) == 0)
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106 found_list = g_list_append(found_list, hdr);
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107 }
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108 }
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109 return found_list;
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110 }
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111
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112 void
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113 header_unfold(header * hdr)
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114 {
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115 gchar *tmp_hdr = g_malloc(strlen(hdr->header));
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116 gchar *p = hdr->header, *q = tmp_hdr;
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117 gboolean flag = FALSE;
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118
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119 while (*p) {
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120 if (*p != '\n')
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121 *(q++) = *p;
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122 else
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123 flag = TRUE;
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124 p++;
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125 }
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126 *(q++) = '\n';
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127
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128 if (flag) {
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129 gchar *new_hdr;
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130
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131 g_free(hdr->header);
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132 new_hdr = g_strdup(tmp_hdr);
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133 g_free(tmp_hdr);
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134 hdr->value = new_hdr + (hdr->value - hdr->header);
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135 hdr->header = new_hdr;
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136 }
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137 }
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138
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139 #define MAX_HDR_LEN 72
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140 void
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141 header_fold(header * hdr)
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142 {
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143 gint len = strlen(hdr->header);
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144 gchar *p, *q;
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145 /* size is probably overestimated, but so we are on the safe side */
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146 gchar *tmp_hdr = g_malloc(len + 2 * len / MAX_HDR_LEN);
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147
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148 p = hdr->header;
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149 q = tmp_hdr;
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150
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151 if (p[len - 1] == '\n')
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152 p[len - 1] = 0;
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153
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diff changeset
154 while (*p) {
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diff changeset
155 gint i, l;
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diff changeset
156 gchar *pp;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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157
10
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158 /* look forward and find potential break points */
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159 i = 0;
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160 l = -1;
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161 pp = p;
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162 while (*pp && (i < MAX_HDR_LEN)) {
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parents: 0
diff changeset
163 if ((*pp == ' ') || (*pp == '\t'))
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164 l = i;
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165 pp++;
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166 i++;
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167 }
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168 if (!*pp)
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169 l = pp - p; /* take rest, if EOS found */
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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170
10
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171 if (l == -1) {
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172 /* no potential break point was found within MAX_HDR_LEN so advance further until the next */
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173 while (*pp && *pp != ' ' && *pp != '\t') {
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174 pp++;
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175 i++;
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176 }
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177 l = i;
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178 }
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179
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180 /* copy */
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181 i = 0;
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182 while (i < l) {
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183 *(q++) = *(p++);
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184 i++;
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185 }
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186 *(q++) = '\n';
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187 *(q++) = *(p++); /* this is either space, tab or 0 */
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188 }
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189 {
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190 gchar *new_hdr;
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191
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192 g_free(hdr->header);
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193 new_hdr = g_strdup(tmp_hdr);
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194 g_free(tmp_hdr);
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195 hdr->value = new_hdr + (hdr->value - hdr->header);
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196 hdr->header = new_hdr;
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197 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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198 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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199
10
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200 header*
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201 create_header(header_id id, gchar * fmt, ...)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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202 {
10
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203 gchar *p;
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204 header *hdr;
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205 va_list args;
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206 va_start(args, fmt);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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207
10
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208 if ((hdr = g_malloc(sizeof(header)))) {
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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209
10
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210 hdr->id = id;
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211 hdr->header = g_strdup_vprintf(fmt, args);
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212 hdr->value = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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213
10
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214 p = hdr->header;
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215 while (*p && *p != ':')
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216 p++;
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217 if (*p)
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218 hdr->value = p + 1;
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219 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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220
10
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221 va_end(args);
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222 return hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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223 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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224
10
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diff changeset
225 void
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diff changeset
226 destroy_header(header * hdr)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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227 {
10
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parents: 0
diff changeset
228 if (hdr) {
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diff changeset
229 if (hdr->header)
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230 g_free(hdr->header);
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231 g_free(hdr);
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232 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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233 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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234
10
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235 header*
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236 copy_header(header * hdr)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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237 {
10
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238 header *new_hdr = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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239
10
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parents: 0
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240 if (hdr) {
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parents: 0
diff changeset
241 if ((new_hdr = g_malloc(sizeof(header)))) {
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parents: 0
diff changeset
242 new_hdr->id = hdr->id;
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diff changeset
243 new_hdr->header = g_strdup(hdr->header);
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244 new_hdr->value = new_hdr->header + (hdr->value - hdr->header);
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parents: 0
diff changeset
245 }
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meillo@marmaro.de
parents: 0
diff changeset
246 }
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parents: 0
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247 return new_hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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248 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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249
10
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250 header*
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251 get_header(gchar * line)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
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252 {
10
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diff changeset
253 gchar *p = line;
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diff changeset
254 gchar buf[64], *q = buf;
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meillo@marmaro.de
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diff changeset
255 gint i;
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parents: 0
diff changeset
256 header *hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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parents:
diff changeset
257
10
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parents: 0
diff changeset
258 while (*p && (*p != ':') && (q < buf + 63))
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parents: 0
diff changeset
259 *(q++) = *(p++);
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parents: 0
diff changeset
260 *q = 0;
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parents: 0
diff changeset
261
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parents: 0
diff changeset
262 if (*p != ':')
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parents: 0
diff changeset
263 return NULL;
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parents: 0
diff changeset
264
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meillo@marmaro.de
parents: 0
diff changeset
265 hdr = g_malloc(sizeof(header));
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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parents:
diff changeset
266
10
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diff changeset
267 hdr->value = NULL;
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diff changeset
268 p++;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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diff changeset
269
10
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parents: 0
diff changeset
270 while (*p && (*p == ' ' || *p == '\t'))
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parents: 0
diff changeset
271 p++;
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parents: 0
diff changeset
272 hdr->value = p;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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273
10
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parents: 0
diff changeset
274 for (i = 0; i < HEAD_NUM_IDS; i++) {
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parents: 0
diff changeset
275 if (strcasecmp(header_names[i].header, buf) == 0)
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meillo@marmaro.de
parents: 0
diff changeset
276 break;
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meillo@marmaro.de
parents: 0
diff changeset
277 }
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diff changeset
278 hdr->id = (header_id) i;
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parents: 0
diff changeset
279 hdr->header = g_strdup(line);
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meillo@marmaro.de
parents: 0
diff changeset
280 hdr->value = hdr->header + (hdr->value - line);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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281
10
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diff changeset
282 DEBUG(4) debugf("header: %d = %s", hdr->id, hdr->header);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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283
10
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parents: 0
diff changeset
284 return hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
285 }