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/* MasqMail
Copyright (C) 1999-2001 Oliver Kurth
Copyright (C) 2008 markus schnalke <meillo@marmaro.de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <sys/stat.h>
#include <sys/wait.h>
#include "masqmail.h"
#include "mserver.h"
#include "peopen.h"
gchar *connection_name;
void
set_online_name(gchar * name)
{
connection_name = g_strdup(name);
}
static gchar*
detect_online_pipe(const gchar * pipe)
{
pid_t pid;
void (*old_signal) (int);
int status;
FILE *in;
gchar *name = NULL;
old_signal = signal(SIGCHLD, SIG_DFL);
in = peopen(pipe, "r", environ, &pid);
if (in == NULL) {
logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
signal(SIGCHLD, old_signal);
return NULL;
}
gchar output[256];
if (fgets(output, 255, in)) {
g_strchomp(g_strchug(output));
if (strlen(output) == 0) {
logwrite(LOG_ALERT, "only whitespace connection name\n");
name = NULL;
} else {
name = g_strdup(output);
}
} else {
logwrite(LOG_ALERT, "nothing read from pipe %s\n", pipe);
name = NULL;
}
fclose(in);
waitpid(pid, &status, 0);
if (WEXITSTATUS(status) != EXIT_SUCCESS) {
g_free(name);
name = NULL;
}
signal(SIGCHLD, old_signal);
return name;
}
gchar*
detect_online()
{
if (conf.online_detect == NULL) {
return NULL;
}
if (strcmp(conf.online_detect, "file") == 0) {
DEBUG(3) debugf("online detection method 'file'\n");
if (conf.online_file == NULL) {
logwrite(LOG_ALERT, "online detection mode is 'file', but online_file is undefined\n");
return NULL;
}
struct stat st;
if (stat(conf.online_file, &st) == 0) {
FILE *fptr = fopen(conf.online_file, "r");
if (!fptr) {
logwrite(LOG_ALERT, "opening of %s failed: %s\n", conf.online_file, strerror(errno));
return NULL;
}
char buf[256];
if (fgets(buf, 256, fptr) == NULL) {
logwrite(LOG_ALERT, "empty online file %s\n", conf.online_file);
fclose(fptr);
return NULL;
}
g_strchomp(g_strchug(buf));
fclose(fptr);
if (strlen(buf) == 0) {
logwrite(LOG_ALERT, "only whitespace connection name in %s\n", conf.online_file);
return NULL;
}
return g_strdup(buf);
} else if (errno == ENOENT) {
logwrite(LOG_NOTICE, "not online.\n");
return NULL;
} else {
logwrite(LOG_ALERT, "stat of %s failed: %s", conf.online_file, strerror(errno));
return NULL;
}
#ifdef ENABLE_MSERVER
} else if (strcmp(conf.online_detect, "mserver") == 0) {
DEBUG(3) debugf("connection method 'mserver'\n");
return mserver_detect_online(conf.mserver_iface);
#endif
} else if (strcmp(conf.online_detect, "pipe") == 0) {
DEBUG(3) debugf("connection method 'pipe'\n");
if (conf.online_pipe)
return detect_online_pipe(conf.online_pipe);
else {
logwrite(LOG_ALERT, "online detection mode is 'pipe', but online_pipe is undefined\n");
return NULL;
}
} else if (strcmp(conf.online_detect, "argument") == 0) {
return connection_name;
} else {
DEBUG(3) debugf("no connection method selected\n");
}
return NULL;
}
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