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annotate src/online.c @ 21:4f4a57f9e8c1

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Added tag 0.2.21-4 for changeset af25f5c39d90
author meillo@marmaro.de
date Thu, 04 Dec 2008 09:45:12 +0100
parents 7354c2e0eb31
children e1004fcc93c9
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08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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1 /* MasqMail
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2 Copyright (C) 1999-2001 Oliver Kurth
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3 Copyright 2008 markus schnalke <meillo@marmaro.de>
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4
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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5 This program is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 2 of the License, or
08114f7dcc23 this is masqmail-0.2.21 from oliver kurth
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program; if not, write to the Free Software
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17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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18 */
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19
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20 #include <sys/stat.h>
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21 #include <sys/wait.h>
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22
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23 #include "masqmail.h"
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24 #include "mserver.h"
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25 #include "peopen.h"
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26
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27 gchar *connection_name;
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29 void
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30 set_online_name(gchar * name)
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31 {
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32 connection_name = g_strdup(name);
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33 }
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35 static gchar*
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36 detect_online_pipe(const gchar * pipe)
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37 {
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38 pid_t pid;
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39 void (*old_signal) (int);
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40 int status;
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41 FILE *in;
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42 gchar *name = NULL;
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44 old_signal = signal(SIGCHLD, SIG_DFL);
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46 in = peopen(pipe, "r", environ, &pid);
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47 if (in != NULL) {
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48 gchar output[256];
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49 if (fgets(output, 255, in)) {
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50 g_strchomp(g_strchug(output));
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51 if (strlen(output) == 0) {
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52 logwrite(LOG_ALERT, "only whitespace connection name\n");
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53 name = NULL;
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54 } else {
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55 name = g_strdup(output);
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56 }
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57 } else {
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58 logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);
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59 name = NULL;
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60 }
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61 fclose(in);
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62 waitpid(pid, &status, 0);
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63 if (WEXITSTATUS(status) != EXIT_SUCCESS) {
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64 g_free(name);
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65 name = NULL;
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66 }
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67 } else
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68 logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
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70 signal(SIGCHLD, old_signal);
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72 return name;
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73 }
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75 gchar*
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76 detect_online()
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77 {
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78 if (conf.online_detect != NULL) {
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79 if (strcmp(conf.online_detect, "file") == 0) {
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80 DEBUG(3) debugf("online detection method 'file'\n");
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81 if (conf.online_file != NULL) {
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82 struct stat st;
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83 if (stat(conf.online_file, &st) == 0) {
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84 FILE *fptr = fopen(conf.online_file, "r");
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85 if (fptr) {
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86 char buf[256];
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87 if (fgets(buf, 256, fptr) == NULL) {
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88 logwrite(LOG_ALERT, "empty online file %s\n", conf.online_file);
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89 fclose(fptr);
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90 return NULL;
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91 }
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92 g_strchomp(g_strchug(buf));
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93 fclose(fptr);
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94 if (strlen(buf) == 0) {
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95 logwrite(LOG_ALERT, "only whitespace connection name in %s\n", conf.online_file);
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96 return NULL;
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97 }
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98 return g_strdup(buf);
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99 } else {
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100 logwrite(LOG_ALERT, "opening of %s failed: %s\n", conf.online_file, strerror(errno));
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101 return NULL;
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102 }
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103 } else if (errno == ENOENT) {
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104 logwrite(LOG_NOTICE, "not online.\n");
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105 return NULL;
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106 } else {
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107 logwrite(LOG_ALERT, "stat of %s failed: %s", conf.online_file, strerror(errno));
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108 return NULL;
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109 }
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110 } else
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111 logwrite(LOG_ALERT, "online detection mode is 'file', but online_file is undefined\n");
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112 #ifdef ENABLE_MSERVER
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113 } else if (strcmp(conf.online_detect, "mserver") == 0) {
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114 DEBUG(3) debugf("connection method 'mserver'\n");
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115 return mserver_detect_online(conf.mserver_iface);
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116 #endif
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117 } else if (strcmp(conf.online_detect, "pipe") == 0) {
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118 DEBUG(3) debugf("connection method 'pipe'\n");
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119 if (conf.online_pipe)
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120 return detect_online_pipe(conf.online_pipe);
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121 else {
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122 logwrite(LOG_ALERT, "online detection mode is 'pipe', but online_pipe is undefined\n");
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123 return NULL;
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124 }
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125 } else if (strcmp(conf.online_detect, "argument") == 0) {
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126 return connection_name;
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127 } else {
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128 DEBUG(3) debugf("no connection method selected\n");
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129 }
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130 }
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131 return NULL;
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132 }