masqmail

view src/online.c @ 209:10da50168dab

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replaced the MD5 implementation with the one of Solar Designer Until now, the sample code of RFC 1321 was used. It had an ugly license. Now we use the implementation of Solar Designer, which is in the Public Domain. http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
author meillo@marmaro.de
date Sun, 18 Jul 2010 21:58:15 +0200
parents 5b621742b2e7
children fc1c6425c024
line source
1 /* MasqMail
2 Copyright (C) 1999-2001 Oliver Kurth
3 Copyright (C) 2008 markus schnalke <meillo@marmaro.de>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #include <sys/stat.h>
21 #include <sys/wait.h>
22
23 #include "masqmail.h"
24 #include "peopen.h"
25
26 gchar *connection_name;
27
28 void
29 set_online_name(gchar * name)
30 {
31 connection_name = g_strdup(name);
32 }
33
34 static gchar*
35 detect_online_pipe(const gchar * pipe)
36 {
37 pid_t pid;
38 void (*old_signal) (int);
39 int status;
40 FILE *in;
41 gchar *name = NULL;
42
43 old_signal = signal(SIGCHLD, SIG_DFL);
44
45 in = peopen(pipe, "r", environ, &pid);
46 if (in == NULL) {
47 logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
48 signal(SIGCHLD, old_signal);
49 return NULL;
50 }
51
52 gchar output[256];
53 if (fgets(output, 255, in)) {
54 g_strchomp(g_strchug(output));
55 if (strlen(output) == 0) {
56 logwrite(LOG_ALERT, "only whitespace connection name\n");
57 name = NULL;
58 } else {
59 name = g_strdup(output);
60 }
61 } else {
62 logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);
63 name = NULL;
64 }
65 fclose(in);
66 waitpid(pid, &status, 0);
67 if (WEXITSTATUS(status) != EXIT_SUCCESS) {
68 g_free(name);
69 name = NULL;
70 }
71
72 signal(SIGCHLD, old_signal);
73
74 return name;
75 }
76
77 gchar*
78 detect_online()
79 {
80 if (conf.online_detect == NULL) {
81 return NULL;
82 }
83
84 if (strcmp(conf.online_detect, "file") == 0) {
85 DEBUG(3) debugf("online detection method 'file'\n");
86 if (conf.online_file == NULL) {
87 logwrite(LOG_ALERT, "online detection mode is 'file', but online_file is undefined\n");
88 return NULL;
89 }
90
91 struct stat st;
92 if (stat(conf.online_file, &st) == 0) {
93 FILE *fptr = fopen(conf.online_file, "r");
94 if (!fptr) {
95 logwrite(LOG_ALERT, "opening of %s failed: %s\n", conf.online_file, strerror(errno));
96 return NULL;
97 }
98 char buf[256];
99 if (fgets(buf, 256, fptr) == NULL) {
100 logwrite(LOG_ALERT, "empty online file %s\n", conf.online_file);
101 fclose(fptr);
102 return NULL;
103 }
104 g_strchomp(g_strchug(buf));
105 fclose(fptr);
106 if (strlen(buf) == 0) {
107 logwrite(LOG_ALERT, "only whitespace connection name in %s\n", conf.online_file);
108 return NULL;
109 }
110 return g_strdup(buf);
111 } else if (errno == ENOENT) {
112 logwrite(LOG_NOTICE, "not online.\n");
113 return NULL;
114 } else {
115 logwrite(LOG_ALERT, "stat of %s failed: %s\n", conf.online_file, strerror(errno));
116 return NULL;
117 }
118
119 } else if (strcmp(conf.online_detect, "pipe") == 0) {
120 DEBUG(3) debugf("connection method 'pipe'\n");
121 if (conf.online_pipe)
122 return detect_online_pipe(conf.online_pipe);
123 else {
124 logwrite(LOG_ALERT, "online detection mode is 'pipe', but online_pipe is undefined\n");
125 return NULL;
126 }
127 } else if (strcmp(conf.online_detect, "argument") == 0) {
128 return connection_name;
129 } else {
130 DEBUG(3) debugf("no connection method selected\n");
131 }
132
133 return NULL;
134 }