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annotate src/header.c @ 59:941413084f56

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updated docs; moved files around updated the INSTALL file with content from the old website moved *agenda* and *ipaq files to docs (are they still relevant?)
author meillo@marmaro.de
date Sat, 29 May 2010 22:53:42 +0200
parents f671821d8222
children 3708b655a371
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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
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5 it under the terms of the GNU General Public License as published by
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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6 the Free Software Foundation; either version 2 of the License, or
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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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 {"Sender", HEAD_SENDER,},
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23 {"To", HEAD_TO,},
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24 {"Cc", HEAD_CC,},
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25 {"Bcc", HEAD_BCC,},
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26 {"Date", HEAD_DATE,},
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27 {"Message-Id", HEAD_MESSAGE_ID,},
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28 {"Reply-To", HEAD_REPLY_TO,},
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29 {"Subject", HEAD_SUBJECT,},
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30 {"Return-Path", HEAD_RETURN_PATH,},
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31 {"Envelope-To", HEAD_ENVELOPE_TO,},
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32 {"Received", HEAD_RECEIVED},
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33 };
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34
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35 /* this was borrowed from exim and slightly changed */
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36 gchar*
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37 rec_timestamp()
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38 {
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39 static gchar buf[64];
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40 int len;
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41
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42 time_t now = time(NULL);
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43 struct tm *t = localtime(&now);
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44
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45 int diff_hour, diff_min;
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46 struct tm local;
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47 struct tm *gmt;
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48
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49 memcpy(&local, t, sizeof(struct tm));
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50 gmt = gmtime(&now);
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51 diff_min = 60 * (local.tm_hour - gmt->tm_hour) + local.tm_min - gmt->tm_min;
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52 if (local.tm_year != gmt->tm_year)
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53 diff_min += (local.tm_year > gmt->tm_year) ? 1440 : -1440;
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54 else if (local.tm_yday != gmt->tm_yday)
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55 diff_min += (local.tm_yday > gmt->tm_yday) ? 1440 : -1440;
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56 diff_hour = diff_min / 60;
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57 diff_min = abs(diff_min - diff_hour * 60);
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58
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59 len = strftime(buf, sizeof(buf), "%a, ", &local);
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60 g_snprintf(buf + len, sizeof(buf) - len, "%02d ", local.tm_mday);
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61 len += strlen(buf + len);
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62 len += strftime(buf + len, sizeof(buf) - len, "%b %Y %H:%M:%S", &local);
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63 g_snprintf(buf + len, sizeof(buf) - len, " %+03d%02d", diff_hour, diff_min);
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64
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65 return buf;
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66 }
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67
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68 /* finds list of headers matching id
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69 if id == HEAD_UNKNOWN and header == NULL finds all unknown headers
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70 else finds all headers matching header
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71 */
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72 GList*
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73 find_header(GList * hdr_list, header_id id, gchar * hdr_str)
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74 {
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75 GList *found_list = NULL;
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76 GList *node;
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77
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78 if ((id != HEAD_UNKNOWN) || (hdr_str == NULL)) {
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79 foreach(hdr_list, node) {
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80 header *hdr = (header *) (node->data);
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81 if (hdr->id == id)
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82 found_list = g_list_append(found_list, hdr);
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83 }
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84 } else {
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85 foreach(hdr_list, node) {
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86 header *hdr = (header *) (node->data);
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87 gchar buf[64], *q = buf, *p = hdr->header;
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88
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89 while (*p != ':' && q < buf + 63 && *p)
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90 *(q++) = *(p++);
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91 *q = '\0';
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92
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93 if (strcasecmp(buf, hdr_str) == 0)
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94 found_list = g_list_append(found_list, hdr);
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95 }
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96 }
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97 return found_list;
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98 }
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99
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100 void
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101 header_unfold(header * hdr)
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102 {
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103 gchar *tmp_hdr = g_malloc(strlen(hdr->header));
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104 gchar *p = hdr->header, *q = tmp_hdr;
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105 gboolean flag = FALSE;
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106
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107 while (*p) {
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108 if (*p != '\n')
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109 *(q++) = *p;
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110 else
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111 flag = TRUE;
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112 p++;
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113 }
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114 *(q++) = '\n';
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115
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116 if (flag) {
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117 gchar *new_hdr;
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118
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119 g_free(hdr->header);
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120 new_hdr = g_strdup(tmp_hdr);
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121 g_free(tmp_hdr);
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122 hdr->value = new_hdr + (hdr->value - hdr->header);
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123 hdr->header = new_hdr;
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124 }
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125 }
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126
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127 #define MAX_HDR_LEN 72
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128 void
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129 header_fold(header * hdr)
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130 {
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131 gint len = strlen(hdr->header);
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132 gchar *p, *q;
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133 /* size is probably overestimated, but so we are on the safe side */
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134 gchar *tmp_hdr = g_malloc(len + 2 * len / MAX_HDR_LEN);
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135
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136 p = hdr->header;
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137 q = tmp_hdr;
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138
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139 if (p[len - 1] == '\n')
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140 p[len - 1] = '\0';
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141
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142 while (*p) {
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143 gint i, l;
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144 gchar *pp;
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145
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146 /* look forward and find potential break points */
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147 i = 0;
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diff changeset
148 l = -1;
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diff changeset
149 pp = p;
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parents: 0
diff changeset
150 while (*pp && (i < MAX_HDR_LEN)) {
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parents: 0
diff changeset
151 if ((*pp == ' ') || (*pp == '\t'))
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diff changeset
152 l = i;
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diff changeset
153 pp++;
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diff changeset
154 i++;
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parents: 0
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155 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
156 if (!*pp)
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157 l = pp - p; /* take rest, if EOS found */
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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158
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
159 if (l == -1) {
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160 /* no potential break point was found within MAX_HDR_LEN so advance further until the next */
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parents: 0
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161 while (*pp && *pp != ' ' && *pp != '\t') {
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diff changeset
162 pp++;
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parents: 0
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163 i++;
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164 }
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165 l = i;
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parents: 0
diff changeset
166 }
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diff changeset
167
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168 /* copy */
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169 i = 0;
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170 while (i < l) {
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171 *(q++) = *(p++);
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172 i++;
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173 }
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174 *(q++) = '\n';
15
f671821d8222 code beautifying; 0 -> \0 if appropriate
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175 *(q++) = *(p++); /* this is either space, tab or 0 */
10
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parents: 0
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176 }
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177 {
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178 gchar *new_hdr;
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179
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180 g_free(hdr->header);
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181 new_hdr = g_strdup(tmp_hdr);
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182 g_free(tmp_hdr);
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183 hdr->value = new_hdr + (hdr->value - hdr->header);
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184 hdr->header = new_hdr;
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185 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
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186 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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187
10
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diff changeset
188 header*
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189 create_header(header_id id, gchar * fmt, ...)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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190 {
10
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191 gchar *p;
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192 header *hdr;
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193 va_list args;
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194 va_start(args, fmt);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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195
10
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parents: 0
diff changeset
196 if ((hdr = g_malloc(sizeof(header)))) {
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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197
10
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diff changeset
198 hdr->id = id;
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199 hdr->header = g_strdup_vprintf(fmt, args);
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diff changeset
200 hdr->value = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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201
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
202 p = hdr->header;
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parents: 0
diff changeset
203 while (*p && *p != ':')
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parents: 0
diff changeset
204 p++;
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parents: 0
diff changeset
205 if (*p)
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parents: 0
diff changeset
206 hdr->value = p + 1;
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parents: 0
diff changeset
207 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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parents:
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208
10
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diff changeset
209 va_end(args);
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diff changeset
210 return hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
211 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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212
10
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meillo@marmaro.de
parents: 0
diff changeset
213 void
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meillo@marmaro.de
parents: 0
diff changeset
214 destroy_header(header * hdr)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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parents:
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215 {
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
216 if (hdr) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
217 if (hdr->header)
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parents: 0
diff changeset
218 g_free(hdr->header);
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parents: 0
diff changeset
219 g_free(hdr);
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parents: 0
diff changeset
220 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
221 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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222
10
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parents: 0
diff changeset
223 header*
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meillo@marmaro.de
parents: 0
diff changeset
224 copy_header(header * hdr)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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225 {
10
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meillo@marmaro.de
parents: 0
diff changeset
226 header *new_hdr = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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diff changeset
227
10
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meillo@marmaro.de
parents: 0
diff changeset
228 if (hdr) {
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meillo@marmaro.de
parents: 0
diff changeset
229 if ((new_hdr = g_malloc(sizeof(header)))) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
230 new_hdr->id = hdr->id;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
231 new_hdr->header = g_strdup(hdr->header);
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diff changeset
232 new_hdr->value = new_hdr->header + (hdr->value - hdr->header);
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parents: 0
diff changeset
233 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
234 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
235 return new_hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
236 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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237
10
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parents: 0
diff changeset
238 header*
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meillo@marmaro.de
parents: 0
diff changeset
239 get_header(gchar * line)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
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diff changeset
240 {
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
241 gchar *p = line;
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meillo@marmaro.de
parents: 0
diff changeset
242 gchar buf[64], *q = buf;
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meillo@marmaro.de
parents: 0
diff changeset
243 gint i;
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meillo@marmaro.de
parents: 0
diff changeset
244 header *hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
245
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
246 while (*p && (*p != ':') && (q < buf + 63))
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
247 *(q++) = *(p++);
15
f671821d8222 code beautifying; 0 -> \0 if appropriate
meillo@marmaro.de
parents: 10
diff changeset
248 *q = '\0';
10
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meillo@marmaro.de
parents: 0
diff changeset
249
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
250 if (*p != ':')
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
251 return NULL;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
252
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
253 hdr = g_malloc(sizeof(header));
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
254
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
255 hdr->value = NULL;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
256 p++;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
257
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
258 while (*p && (*p == ' ' || *p == '\t'))
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
259 p++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
260 hdr->value = p;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
261
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
262 for (i = 0; i < HEAD_NUM_IDS; i++) {
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meillo@marmaro.de
parents: 0
diff changeset
263 if (strcasecmp(header_names[i].header, buf) == 0)
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
264 break;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
265 }
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
266 hdr->id = (header_id) i;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
267 hdr->header = g_strdup(line);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
268 hdr->value = hdr->header + (hdr->value - line);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
269
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
270 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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diff changeset
271
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
272 return hdr;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
273 }