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annotate src/header.c @ 209:10da50168dab

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replaced the MD5 implementation with the one of Solar Designer Until now, the sample code of RFC 1321 was used. It had an ugly license. Now we use the implementation of Solar Designer, which is in the Public Domain. http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
author meillo@marmaro.de
date Sun, 18 Jul 2010 21:58:15 +0200
parents 3708b655a371
children 92063f90f9be
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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
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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 {"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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parents: 0
diff changeset
147 i = 0;
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meillo@marmaro.de
parents: 0
diff changeset
148 l = -1;
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meillo@marmaro.de
parents: 0
diff changeset
149 pp = p;
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meillo@marmaro.de
parents: 0
diff changeset
150 while (*pp && (i < MAX_HDR_LEN)) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
151 if ((*pp == ' ') || (*pp == '\t'))
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meillo@marmaro.de
parents: 0
diff changeset
152 l = i;
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meillo@marmaro.de
parents: 0
diff changeset
153 pp++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
154 i++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
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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meillo@marmaro.de
parents: 0
diff changeset
157 l = pp - p; /* take rest, if EOS found */
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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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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parents: 0
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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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meillo@marmaro.de
parents: 0
diff changeset
161 while (*pp && *pp != ' ' && *pp != '\t') {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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parents: 0
diff changeset
162 pp++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
163 i++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
164 }
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parents: 0
diff changeset
165 l = i;
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meillo@marmaro.de
parents: 0
diff changeset
166 }
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parents: 0
diff changeset
167
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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parents: 0
diff changeset
168 /* copy */
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parents: 0
diff changeset
169 i = 0;
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parents: 0
diff changeset
170 while (i < l) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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parents: 0
diff changeset
171 *(q++) = *(p++);
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parents: 0
diff changeset
172 i++;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
173 }
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parents: 0
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174 *(q++) = '\n';
15
f671821d8222 code beautifying; 0 -> \0 if appropriate
meillo@marmaro.de
parents: 10
diff changeset
175 *(q++) = *(p++); /* this is either space, tab or 0 */
10
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meillo@marmaro.de
parents: 0
diff changeset
176 }
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parents: 0
diff changeset
177 {
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parents: 0
diff changeset
178 gchar *new_hdr;
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diff changeset
179
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diff changeset
180 g_free(hdr->header);
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parents: 0
diff changeset
181 new_hdr = g_strdup(tmp_hdr);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
182 g_free(tmp_hdr);
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parents: 0
diff changeset
183 hdr->value = new_hdr + (hdr->value - hdr->header);
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184 hdr->header = new_hdr;
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parents: 0
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185 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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186 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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187
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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parents: 0
diff changeset
188 header*
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meillo@marmaro.de
parents: 0
diff changeset
189 create_header(header_id id, gchar * fmt, ...)
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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parents:
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190 {
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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diff changeset
191 gchar *p;
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parents: 0
diff changeset
192 header *hdr;
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parents: 0
diff changeset
193 va_list args;
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parents: 0
diff changeset
194 va_start(args, fmt);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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195
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
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
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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parents: 0
diff changeset
198 hdr->id = id;
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parents: 0
diff changeset
199 hdr->header = g_strdup_vprintf(fmt, args);
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parents: 0
diff changeset
200 hdr->value = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
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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meillo@marmaro.de
parents: 0
diff changeset
203 while (*p && *p != ':')
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parents: 0
diff changeset
204 p++;
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meillo@marmaro.de
parents: 0
diff changeset
205 if (*p)
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
206 hdr->value = p + 1;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
207 }
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
208
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
209 va_end(args);
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meillo@marmaro.de
parents: 0
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:
diff changeset
212
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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
meillo@marmaro.de
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)
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
218 g_free(hdr->header);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
219 g_free(hdr);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
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
meillo@marmaro.de
parents:
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222
10
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meillo@marmaro.de
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
meillo@marmaro.de
parents:
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225 {
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
226 header *new_hdr = NULL;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
227
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
228 if (hdr) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
232 new_hdr->value = new_hdr->header + (hdr->value - hdr->header);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
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:
diff changeset
237
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
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
parents:
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;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
242 gchar buf[64], *q = buf;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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++) {
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
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
208
3708b655a371 added newlines to the end of log and debug messages where missing
meillo@marmaro.de
parents: 15
diff changeset
270 DEBUG(4) debugf("header: %d = %s\n", hdr->id, hdr->header);
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
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 }