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annotate src/libident/ident.c @ 304:d5ce2ba71e7b

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manual formating of Received: hdrs; changed hdr for local receival Now the Received: headers are much friendlier to read. About folding: We must fold any line at 998 chars before transfer. We should fold the lines we produce at 78 chars. That is what RFC 2821 requests. We should think about it, somewhen. The header for locally (i.e. non-SMTP) received mail is changed to the format postfix uses. This matches RFC 2821 better. The `from' clause should contain a domain or IP, not a user name. Also, the `with' clause should contain a registered standard protocol name, which ``local'' is not.
author markus schnalke <meillo@marmaro.de>
date Thu, 09 Dec 2010 18:28:11 -0300
parents 26e34ae9a3e3
children
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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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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)
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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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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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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 }