Mercurial > masqmail

annotate src/libident/id_open.c @ 222:8cddc65765bd

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added support for STARTTLS wrappers added the route config option `instant_helo' which causes masqmail, as SMTP client, not to wait for the server's 220 greeting. Instead if says EHLO right at once. You'll need this for STARTTLS wrappers that usually eat the greeting line.
author meillo@marmaro.de
date Fri, 23 Jul 2010 10:57:53 +0200
parents 26e34ae9a3e3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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1 /*
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2 ** id_open.c Establish/initiate a connection to 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 ** Fixes: 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 <errno.h>
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14 #include <fcntl.h>
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15
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16 #ifdef HAVE_ANSIHEADERS
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17 # include <stdlib.h>
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18 # include <string.h>
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19 # include <unistd.h>
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20 # if !defined(__sgi) && !defined(VMS)
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21 # define bzero(p,l) memset(p, 0, l)
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22 # endif
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23 #endif
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24
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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25 #include <sys/types.h>
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26 #include <sys/socket.h>
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27 #include <sys/wait.h>
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28 #include <sys/time.h>
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29 #include <sys/file.h>
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30
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31 #define IN_LIBIDENT_SRC
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32 #include "ident.h"
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33
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34 #include <arpa/inet.h>
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35
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36 #ifdef _AIX
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37 # include <sys/select.h>
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38 #endif
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39
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40
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41 /*
10
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42 ident_t *id_open __P3(struct in_addr *, laddr, struct in_addr *, faddr, struct timeval *, timeout)
0
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43 */
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44
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45 ident_t*
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46 id_open __P((__STRUCT_IN_ADDR_P laddr, __STRUCT_IN_ADDR_P faddr, __STRUCT_TIMEVAL_P timeout))
0
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47 {
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48 ident_t *id;
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49 int res, tmperrno;
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50 struct sockaddr_in sin_laddr, sin_faddr;
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51 fd_set rs, ws, es;
0
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52 #ifndef OLD_SETSOCKOPT
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53 int on = 1;
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54 struct linger linger;
0
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55 #endif
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56
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57 if ((id = (ident_t *) malloc(sizeof(*id))) == 0)
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58 return 0;
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59
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60 if ((id->fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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61 free(id);
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62 return 0;
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63 }
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64
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65 if (timeout) {
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66 if ((res = fcntl(id->fd, F_GETFL, 0)) < 0)
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67 goto ERROR;
0
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68
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69 #ifndef VMS
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70 if (fcntl(id->fd, F_SETFL, res | FNDELAY) < 0)
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71 goto ERROR;
0
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72 #endif
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73 }
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74
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75 /* We silently ignore errors if we can't change LINGER */
0
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76 #ifdef OLD_SETSOCKOPT
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77 /* Old style setsockopt() */
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78 (void) setsockopt(id->fd, SOL_SOCKET, SO_DONTLINGER);
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79 (void) setsockopt(id->fd, SOL_SOCKET, SO_REUSEADDR);
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80 #else
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81 /* New style setsockopt() */
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82 linger.l_onoff = 0;
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83 linger.l_linger = 0;
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84
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85 (void) setsockopt(id->fd, SOL_SOCKET, SO_LINGER, (void *) &linger, sizeof(linger));
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86 (void) setsockopt(id->fd, SOL_SOCKET, SO_REUSEADDR, (void *) &on, sizeof(on));
0
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87 #endif
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88
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89 id->buf[0] = '\0';
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90
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91 bzero((char *) &sin_laddr, sizeof(sin_laddr));
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92 sin_laddr.sin_family = AF_INET;
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93 sin_laddr.sin_addr = *laddr;
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94 sin_laddr.sin_port = 0;
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95
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96 if (bind(id->fd, (struct sockaddr *) &sin_laddr, sizeof(sin_laddr)) < 0) {
0
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97 #ifdef DEBUG
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98 perror("libident: bind");
0
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99 #endif
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100 goto ERROR;
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101 }
0
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102
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103 bzero((char *) &sin_faddr, sizeof(sin_faddr));
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104 sin_faddr.sin_family = AF_INET;
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105 sin_faddr.sin_addr = *faddr;
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106 sin_faddr.sin_port = htons(IDPORT);
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107
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108 errno = 0;
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109 res = connect(id->fd, (struct sockaddr *) &sin_faddr, sizeof(sin_faddr));
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110 if (res < 0 && errno != EINPROGRESS) {
0
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111 #ifdef DEBUG
10
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112 perror("libident: connect");
0
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113 #endif
10
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114 goto ERROR;
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115 }
0
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116
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117 if (timeout) {
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118 FD_ZERO(&rs);
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119 FD_ZERO(&ws);
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120 FD_ZERO(&es);
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121
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122 FD_SET(id->fd, &rs);
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123 FD_SET(id->fd, &ws);
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124 FD_SET(id->fd, &es);
0
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125
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126 #ifdef __hpux
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127 if ((res = select(FD_SETSIZE, (int *) &rs, (int *) &ws, (int *) &es, timeout)) < 0)
0
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128 #else
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129 if ((res = select(FD_SETSIZE, &rs, &ws, &es, timeout)) < 0)
0
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130 #endif
10
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131 {
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132 #ifdef DEBUG
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133 perror("libident: select");
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134 #endif
10
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135 goto ERROR;
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136 }
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137
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138 if (res == 0) {
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139 errno = ETIMEDOUT;
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140 goto ERROR;
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141 }
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142
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143 if (FD_ISSET(id->fd, &es))
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144 goto ERROR;
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145
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146 if (!FD_ISSET(id->fd, &rs) && !FD_ISSET(id->fd, &ws))
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parents: 0
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147 goto ERROR;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
148 }
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
149
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
150 return id;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
151
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
152 ERROR:
10
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
153 tmperrno = errno; /* Save, so close() won't erase it */
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
154 close(id->fd);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
155 free(id);
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
156 errno = tmperrno;
26e34ae9a3e3 changed indention and line wrapping to a more consistent style
meillo@marmaro.de
parents: 0
diff changeset
157 return 0;
0
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
meillo@marmaro.de
parents:
diff changeset
158 }