masqmail-0.2

annotate src/online.c @ 18:99c09ed776c1

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fixed empty or only-whitespace connection names (Closes Debian bug #427095) stripping leading and trailing whitespace from connection names
author meillo@marmaro.de
date Thu, 06 Nov 2008 10:13:29 +0100
parents f671821d8222
children 7354c2e0eb31
rev   line source
meillo@0 1 /* MasqMail
meillo@0 2 Copyright (C) 1999-2001 Oliver Kurth
meillo@0 3
meillo@0 4 This program is free software; you can redistribute it and/or modify
meillo@0 5 it under the terms of the GNU General Public License as published by
meillo@0 6 the Free Software Foundation; either version 2 of the License, or
meillo@0 7 (at your option) any later version.
meillo@0 8
meillo@0 9 This program is distributed in the hope that it will be useful,
meillo@0 10 but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@0 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
meillo@0 12 GNU General Public License for more details.
meillo@0 13
meillo@0 14 You should have received a copy of the GNU General Public License
meillo@0 15 along with this program; if not, write to the Free Software
meillo@0 16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
meillo@0 17 */
meillo@0 18
meillo@0 19 #include <sys/stat.h>
meillo@0 20 #include <sys/wait.h>
meillo@15 21
meillo@0 22 #include "masqmail.h"
meillo@0 23 #include "mserver.h"
meillo@0 24 #include "peopen.h"
meillo@0 25
meillo@0 26 gchar *connection_name;
meillo@0 27
meillo@10 28 void
meillo@10 29 set_online_name(gchar * name)
meillo@0 30 {
meillo@10 31 connection_name = g_strdup(name);
meillo@0 32 }
meillo@0 33
meillo@10 34 static gchar*
meillo@10 35 detect_online_pipe(const gchar * pipe)
meillo@0 36 {
meillo@10 37 pid_t pid;
meillo@10 38 void (*old_signal) (int);
meillo@10 39 int status;
meillo@10 40 FILE *in;
meillo@10 41 gchar *name = NULL;
meillo@0 42
meillo@10 43 old_signal = signal(SIGCHLD, SIG_DFL);
meillo@0 44
meillo@10 45 in = peopen(pipe, "r", environ, &pid);
meillo@10 46 if (in != NULL) {
meillo@10 47 gchar output[256];
meillo@10 48 if (fgets(output, 255, in)) {
meillo@18 49 g_strchomp(g_strchug(output));
meillo@18 50 if (strlen(output) == 0) {
meillo@18 51 logwrite(LOG_ALERT, "only whitespace connection name\n");
meillo@18 52 name = NULL;
meillo@18 53 } else {
meillo@18 54 name = g_strdup(output);
meillo@18 55 }
meillo@18 56 } else {
meillo@18 57 logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);
meillo@18 58 name = NULL;
meillo@10 59 }
meillo@10 60 fclose(in);
meillo@10 61 waitpid(pid, &status, 0);
meillo@10 62 if (WEXITSTATUS(status) != EXIT_SUCCESS) {
meillo@10 63 g_free(name);
meillo@10 64 name = NULL;
meillo@10 65 }
meillo@10 66 } else
meillo@10 67 logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
meillo@0 68
meillo@10 69 signal(SIGCHLD, old_signal);
meillo@0 70
meillo@10 71 return name;
meillo@0 72 }
meillo@0 73
meillo@10 74 gchar*
meillo@10 75 detect_online()
meillo@0 76 {
meillo@10 77 if (conf.online_detect != NULL) {
meillo@10 78 if (strcmp(conf.online_detect, "file") == 0) {
meillo@10 79 DEBUG(3) debugf("online detection method 'file'\n");
meillo@10 80 if (conf.online_file != NULL) {
meillo@10 81 struct stat st;
meillo@10 82 if (stat(conf.online_file, &st) == 0) {
meillo@10 83 FILE *fptr = fopen(conf.online_file, "r");
meillo@10 84 if (fptr) {
meillo@10 85 char buf[256];
meillo@18 86 if (fgets(buf, 256, fptr) == NULL) {
meillo@18 87 logwrite(LOG_ALERT, "empty online file %s\n", conf.online_file);
meillo@18 88 fclose(fptr);
meillo@18 89 return NULL;
meillo@18 90 }
meillo@18 91 g_strchomp(g_strchug(buf));
meillo@10 92 fclose(fptr);
meillo@18 93 if (strlen(buf) == 0) {
meillo@18 94 logwrite(LOG_ALERT, "only whitespace connection name in %s\n", conf.online_file);
meillo@18 95 return NULL;
meillo@18 96 }
meillo@10 97 return g_strdup(buf);
meillo@10 98 } else {
meillo@10 99 logwrite(LOG_ALERT, "opening of %s failed: %s\n", conf.online_file, strerror(errno));
meillo@10 100 return NULL;
meillo@10 101 }
meillo@10 102 } else if (errno == ENOENT) {
meillo@10 103 logwrite(LOG_NOTICE, "not online.\n");
meillo@10 104 return NULL;
meillo@10 105 } else {
meillo@10 106 logwrite(LOG_ALERT, "stat of %s failed: %s", conf.online_file, strerror(errno));
meillo@10 107 return NULL;
meillo@10 108 }
meillo@10 109 } else
meillo@10 110 logwrite(LOG_ALERT, "online detection mode is 'file', but online_file is undefined\n");
meillo@10 111 #ifdef ENABLE_MSERVER
meillo@10 112 } else if (strcmp(conf.online_detect, "mserver") == 0) {
meillo@10 113 DEBUG(3) debugf("connection method 'mserver'\n");
meillo@10 114 return mserver_detect_online(conf.mserver_iface);
meillo@10 115 #endif
meillo@10 116 } else if (strcmp(conf.online_detect, "pipe") == 0) {
meillo@10 117 DEBUG(3) debugf("connection method 'pipe'\n");
meillo@10 118 if (conf.online_pipe)
meillo@10 119 return detect_online_pipe(conf.online_pipe);
meillo@10 120 else {
meillo@10 121 logwrite(LOG_ALERT, "online detection mode is 'pipe', but online_pipe is undefined\n");
meillo@10 122 return NULL;
meillo@10 123 }
meillo@10 124 } else if (strcmp(conf.online_detect, "argument") == 0) {
meillo@10 125 return connection_name;
meillo@10 126 } else {
meillo@10 127 DEBUG(3) debugf("no connection method selected\n");
meillo@10 128 }
meillo@0 129 }
meillo@0 130 return NULL;
meillo@0 131 }