Mercurial > masqmail

annotate src/libident/ident.c @ 216:84bf7a6b6ccd

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added misc/list-versions This script helps to check if the versions numbers in the project are the same as the one for the release. This script is motivated by the 0.2.27 release in which masqmail introduces itself as being version 0.2.26.
author meillo@marmaro.de
date Mon, 19 Jul 2010 14:01:13 +0200
parents 26e34ae9a3e3
children
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rev   line source
0
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1 /*
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2 ** ident.c High-level calls to the ident lib
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3 **
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4 ** Author: Pär Emanuelsson <pell@lysator.liu.se>
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5 ** Hacked by: Peter Eriksson <pen@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
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14 #ifdef HAVE_ANSIHEADERS
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15 # include <stdlib.h>
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16 # include <string.h>
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17 #endif
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18
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19 #include <errno.h>
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20
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21 #include <sys/types.h>
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22 #include <sys/socket.h>
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23
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24 #define IN_LIBIDENT_SRC
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25 #include "ident.h"
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26
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27 #include <arpa/inet.h>
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31
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32 /* Do a complete ident query and return result */
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33
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34 IDENT*
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35 ident_lookup __P2(int, fd, int, timeout)
0
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36 {
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37 struct sockaddr_in localaddr, remoteaddr;
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38 int len;
0
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39
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40 len = sizeof(remoteaddr);
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41 if (getpeername(fd, (struct sockaddr *) &remoteaddr, &len) < 0)
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42 return 0;
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43
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44 len = sizeof(localaddr);
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45 if (getsockname(fd, (struct sockaddr *) &localaddr, &len) < 0)
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46 return 0;
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47
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48 return ident_query(&localaddr.sin_addr, &remoteaddr.sin_addr, ntohs(localaddr.sin_port), ntohs(remoteaddr.sin_port), timeout);
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49 }
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50
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51
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52 IDENT*
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53 ident_query __P5(struct in_addr *, laddr, struct in_addr *, raddr, int, lport, int, rport, int, timeout)
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54 {
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55 int res;
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56 ident_t *id;
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57 struct timeval timout;
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58 IDENT *ident = 0;
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59
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60
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61 timout.tv_sec = timeout;
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62 timout.tv_usec = 0;
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63
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64 if (timeout)
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65 id = id_open(laddr, raddr, &timout);
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66 else
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67 id = id_open(laddr, raddr, (struct timeval *) 0);
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68
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69 if (!id) {
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70 errno = EINVAL;
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71 return 0;
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72 }
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73
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74 if (timeout)
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75 res = id_query(id, rport, lport, &timout);
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76 else
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77 res = id_query(id, rport, lport, (struct timeval *) 0);
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78
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79 if (res < 0) {
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80 id_close(id);
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81 return 0;
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82 }
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83
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84 ident = (IDENT *) malloc(sizeof(IDENT));
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85 if (!ident) {
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86 id_close(id);
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87 return 0;
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88 }
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89
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90 if (timeout)
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91 res = id_parse(id, &timout, &ident->lport, &ident->fport, &ident->identifier, &ident->opsys, &ident->charset);
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92 else
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93 res = id_parse(id, (struct timeval *) 0, &ident->lport, &ident->fport, &ident->identifier, &ident->opsys, &ident->charset);
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94
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95 if (res != 1) {
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96 free(ident);
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97 id_close(id);
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98 return 0;
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99 }
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100
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101 id_close(id);
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102 return ident; /* At last! */
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103 }
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104
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105
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106 char*
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107 ident_id __P2(int, fd, int, timeout)
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108 {
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109 IDENT *ident;
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110 char *id = 0;
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111
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112 ident = ident_lookup(fd, timeout);
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113 if (ident && ident->identifier && *ident->identifier) {
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114 id = id_strdup(ident->identifier);
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115 if (id == NULL)
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116 return NULL;
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117 }
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118
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119 ident_free(ident);
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120 return id;
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121 }
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122
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123
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124 void
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125 ident_free __P1(IDENT *, id)
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126 {
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127 if (!id)
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128 return;
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129 if (id->identifier)
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130 free(id->identifier);
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131 if (id->opsys)
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132 free(id->opsys);
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133 if (id->charset)
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134 free(id->charset);
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135 free(id);
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136 }