--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/log.c	Fri Sep 26 17:05:23 2008 +0200
@@ -0,0 +1,211 @@
+/*  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 "masqmail.h"
+
+#include "sysexits.h"
+
+static char *_sysexit_strings[] = {
+  "command line usage error",
+  "data format error",
+  "cannot open input",
+  "addressee unknown",
+  "host name unknown",
+  "service unavailable",
+  "internal software error",
+  "system error (e.g., can't fork)",
+  "critical OS file missing",
+  "can't create (user) output file",
+  "input/output error",
+  "temp failure; user is invited to retry",
+  "remote error in protocol",
+  "permission denied",
+  "configuration error"
+};
+
+gchar *ext_strerror(int err)
+{
+  if(err < 1024)
+    return strerror(err);
+  else
+    if(err > 1024 + EX__BASE &&
+       (err - 1024 - EX__BASE < sizeof(_sysexit_strings)/sizeof(_sysexit_strings[0])))
+      return _sysexit_strings[err - 1024 - EX__BASE];
+
+  return "unknown error";
+}
+
+static FILE *logfile = NULL;
+static FILE *debugfile = NULL;
+
+gboolean logopen()
+{
+  gchar *filename;
+  mode_t saved_mode = umask(066);
+
+  if(conf.use_syslog){
+    openlog(PACKAGE, LOG_PID, LOG_MAIL);
+  }else{
+    uid_t saved_uid;
+    gid_t saved_gid;
+    
+    saved_gid = setegid(conf.mail_gid);
+    saved_uid = seteuid(conf.mail_uid);
+
+    filename = g_strdup_printf("%s/masqmail.log", conf.log_dir);
+    logfile = fopen(filename, "a");
+    if(!logfile){
+      fprintf(stderr, "could not open log '%s': %s\n", filename, strerror(errno));
+      return FALSE;
+    }
+    g_free(filename);
+
+    seteuid(saved_uid);
+    setegid(saved_gid);
+  }
+
+#ifdef ENABLE_DEBUG
+  if(conf.debug_level > 0){
+    filename = g_strdup_printf("%s/debug.log", conf.log_dir);
+    debugfile = fopen(filename, "a");
+    if(!debugfile){
+      fprintf(stderr, "could not open debug log '%s'\n", filename);
+      return FALSE;
+    }
+    g_free(filename);
+  }
+#endif
+  umask(saved_mode);
+  return TRUE;
+}
+
+void logclose()
+{
+  if(conf.use_syslog)
+    closelog();
+  else
+    if(logfile) fclose(logfile);
+  if(debugfile) fclose(debugfile);
+}
+
+void vlogwrite(int pri, const char *fmt, va_list args)
+{
+  if((conf.do_verbose && (pri & LOG_VERBOSE)) || (pri == LOG_ALERT) || (pri == LOG_WARNING)){
+    va_list args_copy;
+    va_copy(args_copy, args);
+    vfprintf(stdout, fmt, args_copy);
+    va_end(args_copy);
+    fflush(stdout); /* is this necessary? */
+  }
+
+  pri &= ~LOG_VERBOSE;
+  if(pri){
+
+    if(conf.use_syslog)
+      vsyslog(pri, fmt, args);
+    else{
+      if(pri <= conf.log_max_pri){
+	FILE *file = logfile ? logfile : stderr;
+	time_t now = time(NULL);
+	struct tm *t = localtime(&now);
+	gchar buf[24];
+	uid_t saved_uid;
+	gid_t saved_gid;
+
+	saved_gid = setegid(conf.mail_gid);
+	saved_uid = seteuid(conf.mail_uid);
+
+	strftime(buf, 24, "%Y-%m-%d %H:%M:%S", t);
+	fprintf(file, "%s [%d] ", buf, getpid());
+	
+	vfprintf(file, fmt, args);
+	fflush(file);
+
+	seteuid(saved_uid);
+	setegid(saved_gid);
+      }
+    }
+  }
+}  
+
+#ifdef ENABLE_DEBUG
+void vdebugwrite(int pri, const char *fmt, va_list args)
+{
+  time_t now = time(NULL);
+  struct tm *t = localtime(&now);
+  gchar buf[24];
+  strftime(buf, 24, "%Y-%m-%d %H:%M:%S", t);
+
+  if(debugfile){
+    fprintf(debugfile, "%s [%d] ", buf, getpid());
+  
+    vfprintf(debugfile, fmt, args);
+    fflush(debugfile);
+  }else{
+    fprintf(stderr, "no debug file, msg was:\n");
+    vfprintf(stderr, fmt, args);
+  }
+}
+#endif
+
+void logwrite(int pri, const char *fmt, ...)
+{
+  va_list args, args_copy;
+  int saved_errno = errno; /* somewhere this is changed to EBADF */
+
+  va_start(args, fmt);
+#ifdef ENABLE_DEBUG
+  va_copy(args_copy, args);
+#endif
+  vlogwrite(pri, fmt, args);
+#ifdef ENABLE_DEBUG
+  if(debugfile)
+    vdebugwrite(pri, fmt, args_copy);
+  va_end(args_copy);
+#endif
+  va_end(args);
+
+  errno = saved_errno;
+}
+
+#ifdef ENABLE_DEBUG
+void debugf(const char *fmt, ...)
+{
+  va_list args;
+  va_start(args, fmt);
+
+  vdebugwrite(LOG_DEBUG, fmt, args);
+
+  va_end(args);
+}
+
+void vdebugf(const char *fmt, va_list args)
+{
+  vdebugwrite(LOG_DEBUG, fmt, args);
+}
+#endif
+
+void maillog(const char *fmt, ...)
+{
+  va_list args;
+  va_start(args, fmt);
+
+  vlogwrite(LOG_NOTICE, fmt, args);
+
+  va_end(args);
+}