meillo@0: /*  MasqMail
meillo@0:     Copyright (C) 1999-2001 Oliver Kurth
meillo@0: 
meillo@0:     This program is free software; you can redistribute it and/or modify
meillo@0:     it under the terms of the GNU General Public License as published by
meillo@0:     the Free Software Foundation; either version 2 of the License, or
meillo@0:     (at your option) any later version.
meillo@0: 
meillo@0:     This program is distributed in the hope that it will be useful,
meillo@0:     but WITHOUT ANY WARRANTY; without even the implied warranty of
meillo@0:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
meillo@0:     GNU General Public License for more details.
meillo@0: 
meillo@0:     You should have received a copy of the GNU General Public License
meillo@0:     along with this program; if not, write to the Free Software
meillo@0:     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
meillo@0: */
meillo@0: 
meillo@0: #include <sys/stat.h>
meillo@0: #include <sys/wait.h>
meillo@0: #include "masqmail.h"
meillo@0: #include "mserver.h"
meillo@0: #include "peopen.h"
meillo@0: 
meillo@0: gchar *connection_name;
meillo@0: 
meillo@0: void set_online_name(gchar *name)
meillo@0: {
meillo@0:   connection_name = g_strdup(name);
meillo@0: }
meillo@0: 
meillo@0: static
meillo@0: gchar *detect_online_pipe(const gchar *pipe)
meillo@0: {
meillo@0:   pid_t pid;
meillo@0:   void (*old_signal)(int);
meillo@0:   int status;
meillo@0:   FILE *in;
meillo@0:   gchar *name = NULL;
meillo@0: 
meillo@0:   old_signal = signal(SIGCHLD, SIG_DFL);
meillo@0: 
meillo@0:   in = peopen(pipe, "r", environ, &pid);
meillo@0:   if(in != NULL){
meillo@0:     gchar output[256];
meillo@0:     if(fgets(output, 255, in)){
meillo@0:       g_strchomp(output);
meillo@0:       name = g_strdup(output);
meillo@0:     }
meillo@0:     fclose(in);
meillo@0:     waitpid(pid, &status, 0);
meillo@0:     if(WEXITSTATUS(status) != EXIT_SUCCESS){
meillo@0:       g_free(name);
meillo@0:       name = NULL;
meillo@0:     }
meillo@0:   }else
meillo@0:     logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
meillo@0: 
meillo@0:   signal(SIGCHLD, old_signal);
meillo@0: 
meillo@0:   return name;
meillo@0: }
meillo@0: 
meillo@0: gchar *detect_online()
meillo@0: {
meillo@0:   if(conf.online_detect != NULL){
meillo@0:     if(strcmp(conf.online_detect, "file") == 0){
meillo@0:       DEBUG(3) debugf("online detection method 'file'\n");
meillo@0:       if(conf.online_file != NULL){
meillo@0: 	struct stat st;
meillo@0: 	if(stat(conf.online_file, &st) == 0){
meillo@0: 	  FILE *fptr = fopen(conf.online_file, "r");
meillo@0: 	  if(fptr){
meillo@0: 	    char buf[256];
meillo@0: 	    fgets(buf, 256, fptr);
meillo@0: 	    g_strchomp(buf);
meillo@0: 	    fclose(fptr);
meillo@0: 	    return g_strdup(buf);
meillo@0: 	  }else{
meillo@0: 	    logwrite(LOG_ALERT, "opening of %s failed: %s\n",
meillo@0: 		     conf.online_file, strerror(errno));
meillo@0: 	    return NULL;
meillo@0: 	  }
meillo@0: 	}
meillo@0: 	else if(errno == ENOENT){
meillo@0: 	  logwrite(LOG_NOTICE, "not online.\n");
meillo@0: 	  return NULL;
meillo@0: 	}else{
meillo@0: 	  logwrite(LOG_ALERT, "stat of %s failed: %s",
meillo@0: 		   conf.online_file, strerror(errno));
meillo@0: 	  return NULL;
meillo@0: 	}
meillo@0:       }else
meillo@0: 	logwrite(LOG_ALERT,
meillo@0: 		 "online detection mode is 'file', "
meillo@0: 		 "but online_file is undefined\n");
meillo@0: #ifdef ENABLE_MSERVER
meillo@0:     }else if(strcmp(conf.online_detect, "mserver") == 0){
meillo@0:       DEBUG(3) debugf("connection method 'mserver'\n");
meillo@0:       return mserver_detect_online(conf.mserver_iface);
meillo@0: #endif
meillo@0:     }else if(strcmp(conf.online_detect, "pipe") == 0){
meillo@0:       DEBUG(3) debugf("connection method 'pipe'\n");
meillo@0:       if(conf.online_pipe)
meillo@0: 	return detect_online_pipe(conf.online_pipe);
meillo@0:       else{
meillo@0: 	logwrite(LOG_ALERT,
meillo@0: 		 "online detection mode is 'pipe', "
meillo@0: 		 "but online_pipe is undefined\n");
meillo@0: 	return NULL;
meillo@0:       }
meillo@0:     }else if(strcmp(conf.online_detect, "argument") == 0){
meillo@0:       return connection_name;
meillo@0:     }else{
meillo@0:       DEBUG(3) debugf("no connection method selected\n");
meillo@0:     }
meillo@0:   }
meillo@0:   return NULL;
meillo@0: }