--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/online.c	Fri Sep 26 17:05:23 2008 +0200
@@ -0,0 +1,119 @@
+/*  MasqMail
+    Copyright (C) 1999-2001 Oliver Kurth
+
+    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){
+    gchar output[256];
+    if(fgets(output, 255, in)){
+      g_strchomp(output);
+      name = g_strdup(output);
+    }
+    fclose(in);
+    waitpid(pid, &status, 0);
+    if(WEXITSTATUS(status) != EXIT_SUCCESS){
+      g_free(name);
+      name = NULL;
+    }
+  }else
+    logwrite(LOG_ALERT, "could not open pipe '%s': %s\n", pipe, strerror(errno));
+
+  signal(SIGCHLD, old_signal);
+
+  return name;
+}
+
+gchar *detect_online()
+{
+  if(conf.online_detect != NULL){
+    if(strcmp(conf.online_detect, "file") == 0){
+      DEBUG(3) debugf("online detection method 'file'\n");
+      if(conf.online_file != NULL){
+	struct stat st;
+	if(stat(conf.online_file, &st) == 0){
+	  FILE *fptr = fopen(conf.online_file, "r");
+	  if(fptr){
+	    char buf[256];
+	    fgets(buf, 256, fptr);
+	    g_strchomp(buf);
+	    fclose(fptr);
+	    return g_strdup(buf);
+	  }else{
+	    logwrite(LOG_ALERT, "opening of %s failed: %s\n",
+		     conf.online_file, strerror(errno));
+	    return NULL;
+	  }
+	}
+	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;
+	}
+      }else
+	logwrite(LOG_ALERT,
+		 "online detection mode is 'file', "
+		 "but online_file is undefined\n");
+#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;
+}