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annotate src/libident/id_parse.c @ 0:08114f7dcc23 0.2.21

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this is masqmail-0.2.21 from oliver kurth
author meillo@marmaro.de
date Fri, 26 Sep 2008 17:05:23 +0200
parents
children 26e34ae9a3e3
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08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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1 /*
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2 ** id_parse.c Receive and parse a reply from an IDENT server
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3 **
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4 ** Author: Peter Eriksson <pen@lysator.liu.se>
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5 ** Fiddling: Pär Emanuelsson <pell@lysator.liu.se>
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6 */
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7
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8 #ifdef NeXT3
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9 # include <libc.h>
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10 #endif
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11
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12 #include <stdio.h>
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13 #include <string.h>
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14 #include <errno.h>
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15 #include <ctype.h>
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16
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17 #ifdef HAVE_ANSIHEADERS
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18 # include <stdlib.h>
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19 # include <string.h>
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20 # include <unistd.h>
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21 #endif
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22
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23 #include <sys/types.h>
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24 #include <sys/wait.h>
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25 #include <sys/time.h>
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26
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27 #ifdef _AIX
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28 # include <sys/select.h>
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29 #endif
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30
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31 #ifdef _AIX
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32 # include <sys/select.h>
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33 #endif
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34 #ifdef VMS
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35 # include <sys/socket.h> /* for fd_set */
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36 #endif
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37 #define IN_LIBIDENT_SRC
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38 #include "ident.h"
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39
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40
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41 /*
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42 int id_parse __P7(ident_t *, id,
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43 struct timeval *, timeout,
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44 int *, lport,
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45 int *, fport,
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46 char **, identifier,
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47 char **, opsys,
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48 char **, charset)
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49 */
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50
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51 int id_parse __P(( ident_t *id,
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52 __STRUCT_TIMEVAL_P timeout,
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53 int *lport,
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54 int *fport,
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55 char **identifier,
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56 char **opsys,
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57 char **charset))
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58 {
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59 char c, *cp, *tmp_charset;
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60 fd_set rs;
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61 int pos, res=0, lp, fp;
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62
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63 errno = 0;
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64
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65 tmp_charset = 0;
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66
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67 if (!id)
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68 return -1;
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69 if (lport)
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70 *lport = 0;
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71 if (fport)
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72 *fport = 0;
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73 if (identifier)
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74 *identifier = 0;
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75 if (opsys)
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76 *opsys = 0;
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77 if (charset)
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78 *charset = 0;
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79
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80 pos = strlen(id->buf);
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81
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82 if (timeout)
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83 {
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84 FD_ZERO(&rs);
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85 FD_SET(id->fd, &rs);
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86
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87 #ifdef __hpux
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88 if ((res = select(FD_SETSIZE, (int *) &rs, (int *)0, (int *)0, timeout)) < 0)
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89 #else
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90 if ((res = select(FD_SETSIZE, &rs, (fd_set *)0, (fd_set *)0, timeout)) < 0)
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91 #endif
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92 return -1;
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93
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94 if (res == 0)
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95 {
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96 errno = ETIMEDOUT;
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97 return -1;
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98 }
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99 }
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100
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101 /* Every octal value is allowed except 0, \n and \r */
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102 while (pos < sizeof(id->buf) &&
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103 (res = read(id->fd, id->buf + pos, 1)) == 1 &&
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104 id->buf[pos] != '\n' && id->buf[pos] != '\r')
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105 pos++;
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106
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107 if (res < 0)
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108 return -1;
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109
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110 if (res == 0)
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111 {
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112 errno = ENOTCONN;
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113 return -1;
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114 }
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115
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116 if (id->buf[pos] != '\n' && id->buf[pos] != '\r')
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117 return 0; /* Not properly terminated string */
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118
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119 id->buf[pos++] = '\0';
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120
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121 /*
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122 ** Get first field (<lport> , <fport>)
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123 */
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124 cp = id_strtok(id->buf, ":", &c);
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125 if (!cp)
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126 return -2;
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127
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128 if (sscanf(cp, " %d , %d", &lp, &fp) != 2)
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129 {
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130 if (identifier)
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131 {
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132 *identifier = id_strdup(cp);
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133 if (*identifier == NULL)
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134 return -4;
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135 }
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136 return -2;
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137 }
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138
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139 if (lport)
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140 *lport = lp;
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141 if (fport)
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142 *fport = fp;
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143
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144 /*
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145 ** Get second field (USERID or ERROR)
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146 */
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147 cp = id_strtok((char *)0, ":", &c);
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148 if (!cp)
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149 return -2;
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150
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151 if (strcmp(cp, "ERROR") == 0)
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152 {
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meillo@marmaro.de
parents:
diff changeset
153 cp = id_strtok((char *)0, "\n\r", &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
154 if (!cp)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
155 return -2;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
156
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
157 if (identifier)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
158 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
159 *identifier = id_strdup(cp);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
160 if (*identifier == NULL)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
161 return -4;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
162 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
163
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
164 return 2;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
165 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
166 else if (strcmp(cp, "USERID") == 0)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
167 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
168 /*
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
169 ** Get first subfield of third field <opsys>
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
170 */
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
171 cp = id_strtok((char *) 0, ",:", &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
172 if (!cp)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
173 return -2;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
174
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
175 if (opsys)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
176 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
177 *opsys = id_strdup(cp);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
178 if (*opsys == NULL)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
179 return -4;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
180 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
181
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
182 /*
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
183 ** We have a second subfield (<charset>)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
184 */
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
185 if (c == ',')
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
186 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
187 cp = id_strtok((char *)0, ":", &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
188 if (!cp)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
189 return -2;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
190
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
191 tmp_charset = cp;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
192 if (charset)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
193 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
194 *charset = id_strdup(cp);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
195 if (*charset == NULL)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
196 return -4;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
197 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
198
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
199 /*
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
200 ** We have even more subfields - ignore them
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
201 */
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
202 if (c == ',')
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
203 id_strtok((char *)0, ":", &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
204 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
205
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
206 if (tmp_charset && strcmp(tmp_charset, "OCTET") == 0)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
207 cp = id_strtok((char *)0, (char *)0, &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
208 else
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
209 cp = id_strtok((char *)0, "\n\r", &c);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
210
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
211 if (identifier)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
212 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
213 *identifier = id_strdup(cp);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
214 if (*identifier == NULL)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
215 return -4;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
216 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
217 return 1;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
218 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
219 else
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
220 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
221 if (identifier)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
222 {
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
223 *identifier = id_strdup(cp);
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
224 if (*identifier == NULL)
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
225 return -4;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
226 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
227 return -3;
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
228 }
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
229 }