More bugfixes.

* examples/mblconv.c (main): Return 0.
* examples/murun.c (main): Fix iteration body.
* imap4d/append.c: Do not pass constructed string as format
argument to io_completion_response, use %s instead.
* imap4d/close.c: Likewise.
* imap4d/create.c: Likewise.
* imap4d/delete.c: Likewise.
* imap4d/rename.c: Likewise.
* imap4d/status.c: Likewise.
* libmailutils/base/mutil.c (mutil_parse_field_map): Fix return
code in case of wordsplit failure.
* libmailutils/cfg/parser.y (GETSNUM): Initialize sign.
* libmailutils/stream/streamref.c (_streamref_ctl)
<MU_IOCTL_SEEK_LIMITS>: Initialize lim.
* libmailutils/string/wordsplit.c: Typecast format width arguments
to int.
* libmu_sieve/extensions/vacation.c (check_db): Initialize days.
Pass correct time value to test_and_update_prop.
* libproto/pop/mbox.c (pop_create_pop3_message): Fix return code.
* mail/mail.c (do_and_quit): Pass the command to util_do_command
via the %s format.
* mail/unset.c (mail_unset): Likewise.
* mh/mh_fmtgram.y (function production): LIkewise for mu_error.
* mu/logger.c (mutool_logger): Fix return code in case
of mu_stdstream_strerr_create failure.

@@ -34,4 +34,5 @@ main ()
       else
 	putchar (c);
     }
+  return 0;
 }

@@ -122,11 +122,12 @@ main (int argc, char *argv[])
 	  rc = mu_string_split (argv[++i], ",", list);
 	  if (mu_list_get_iterator (list, &itr) == 0)
 	    {
-	      char *p;
-	      
 	      for (mu_iterator_first (itr);
 		   !mu_iterator_is_done (itr); mu_iterator_next (itr))
 		{
+	          char *p;
+
+		  mu_iterator_current (itr, (void**)&p);
 		  if (gn >= MU_ARRAY_SIZE (gid))
 		    {
 		      fprintf (stderr, "too many gids\n");

@@ -228,7 +228,7 @@ imap4d_append (struct imap4d_command *command, imap4d_tokbuf_t tok)
   if (status == 0)
     return io_completion_response (command, RESP_OK, "Completed");
 
-  return io_completion_response (command, RESP_NO, err_text);
+  return io_completion_response (command, RESP_NO, "%s", err_text);
 }
 
 

@@ -53,7 +53,7 @@ imap4d_close0 (struct imap4d_command *command, imap4d_tokbuf_t tok,
   mu_mailbox_destroy (&mbox);
 
   if (msg)
-    return io_completion_response (command, RESP_NO, msg);
+    return io_completion_response (command, RESP_NO, "%s", msg);
   return io_completion_response (command, RESP_OK, "Completed");
 }
 

@@ -118,5 +118,5 @@ imap4d_create (struct imap4d_command *command, imap4d_tokbuf_t tok)
       msg = "already exists";
     }
 
-  return io_completion_response (command, rc, msg);
+  return io_completion_response (command, rc, "%s", msg);
 }

@@ -75,5 +75,5 @@ imap4d_delete (struct imap4d_command *command, imap4d_tokbuf_t tok)
       rc = RESP_NO;
       msg = "Cannot remove";
     }
-  return io_completion_response (command, rc, msg);
+  return io_completion_response (command, rc, "%s", msg);
 }

@@ -226,5 +226,5 @@ imap4d_rename (struct imap4d_command *command, imap4d_tokbuf_t tok)
       free (oldname);
     }
   free (newname);
-  return io_completion_response (command, rc, msg);
+  return io_completion_response (command, rc, "%s", msg);
 }

@@ -150,7 +150,7 @@ imap4d_status (struct imap4d_command *command, imap4d_tokbuf_t tok)
 	return io_completion_response (command, RESP_BAD, 
 	                               "Too few args (empty list)");
       else if (err_msg)
-	return io_completion_response (command, RESP_BAD, err_msg);
+	return io_completion_response (command, RESP_BAD, "%s", err_msg);
       return io_completion_response (command, RESP_OK, "Completed");
     }
   

@@ -87,7 +87,7 @@ mutil_parse_field_map (const char *map, mu_assoc_t *passoc_tab, int *perr)
     {
       mu_error (_("cannot split line `%s': %s"), map,
 		mu_wordsplit_strerror (&ws));
-      return rc;
+      return errno;
     }
 
   for (i = 0; i < ws.ws_wordc; i++)

@@ -855,12 +855,12 @@ pop_section (struct scan_tree_data *dat)
   {									\
     unsigned type tmpres;						\
     const char *s = str;						\
-    int sign;								\
+    int sign;							        \
     unsigned type limit;						\
     									\
     if (*s == '-')							\
       {									\
-	sign++;								\
+	sign = 1;							\
 	s++;								\
 	limit = TYPE_MINIMUM (type);					\
 	limit = - limit;						\

@@ -212,7 +212,7 @@ _streamref_ctl (struct _mu_stream *str, int code, int opcode, void *arg)
 	return EINVAL;
       else
 	{
-	  mu_off_t *lim;
+	  mu_off_t *lim = arg;
 
 	  switch (opcode)
 	    {

@@ -412,7 +412,7 @@ mu_wordsplit_dump_nodes (struct mu_wordsplit *wsp)
       else
 	wsp->ws_debug ("%4d: %p: %#04x (%s):%.*s;",
 		       n, p, p->flags, wsnode_flagstr (p->flags),
-		       p->v.segm.end - p->v.segm.beg,
+		       (int)(p->v.segm.end - p->v.segm.beg),
 		       wsp->ws_input + p->v.segm.beg);
     }
 }
@@ -773,7 +773,7 @@ expvar (struct mu_wordsplit *wsp, const char *str, size_t len,
   else
     {
       if (wsp->ws_flags & MU_WRDSF_WARNUNDEF)
-	wsp->ws_error (_("warning: undefined variable `%.*s'"), i, str);
+	wsp->ws_error (_("warning: undefined variable `%.*s'"), (int) i, str);
       if (wsp->ws_flags & MU_WRDSF_KEEPUNDEF)
 	value = NULL;
       else
@@ -1346,7 +1346,7 @@ mu_wordsplit_len (const char *command, size_t len, struct mu_wordsplit *wsp,
     return rc;
 
   if (wsp->ws_flags & MU_WRDSF_SHOWDBG)
-    wsp->ws_debug ("Input:%.*s;", len, command);
+    wsp->ws_debug ("Input:%.*s;", (int)len, command);
 
   if (wsp->ws_flags & MU_WRDSF_NOSPLIT)
     {

@@ -336,13 +336,13 @@ check_db (mu_sieve_machine_t mach, mu_list_t tags, char *from)
   char *file;
   mu_sieve_value_t *arg;
   unsigned int days;
-  time_t now;
   int rc;
   mu_stream_t str;
   mu_locker_t locker;
   
   if (mu_sieve_tag_lookup (tags, "days", &arg))
     {
+      days = arg->v.number;
       if (days > DAYS_MAX)
 	days = DAYS_MAX;
     }
@@ -402,7 +402,7 @@ check_db (mu_sieve_machine_t mach, mu_list_t tags, char *from)
       mu_sieve_abort (mach);
     }
 
-  rc = test_and_update_prop (prop, from, now, days, mach);
+  rc = test_and_update_prop (prop, from, time (NULL), days, mach);
   mu_property_destroy (&prop);
   mu_locker_unlock (locker);
   mu_locker_destroy (&locker);

@@ -579,7 +579,6 @@ static int
 pop_create_pop3_message (struct _pop3_mailbox *mpd, size_t msgno,
 			 struct _pop3_message **mptr)
 {
-  int status;
   struct _pop3_message *mpm;
   
   if (msgno > mpd->msg_count)
@@ -607,7 +606,7 @@ pop_create_pop3_message (struct _pop3_mailbox *mpd, size_t msgno,
   
   mpd->msg[msgno - 1] = mpm;
   *mptr = mpm;
-  return status;
+  return 0;
 }
 
 

@@ -311,7 +311,7 @@ static char *default_setup[] = {
 static void
 do_and_quit (const char *command)
 {
-  int rc = util_do_command (command);
+  int rc = util_do_command ("%s", command);
   mu_mailbox_close (mbox);
   exit (rc != 0);
 }

@@ -37,7 +37,7 @@ mail_unset (int argc, char **argv)
 	  char *buf = xmalloc ((7+strlen (argv[i])) * sizeof (char));
 	  strcpy (buf, "set no");
 	  strcat (buf, argv[i]);
-	  if (!util_do_command (buf))
+	  if (!util_do_command ("%s", buf))
 	    status = 1;
 	  free (buf);
 	}

@@ -205,7 +205,7 @@ function  : FUNCTION
 	      else
 		{
 		  yyerror (_("undefined function"));
-		  mu_error ($1);
+		  mu_error ("%s", $1);
 		  YYERROR;
 		}
 	    }

@@ -158,9 +158,10 @@ mutool_logger (int argc, char **argv)
 
   if (!syslog_tag)
     syslog_tag = "mu-logger";
-  if (mu_stdstream_strerr_create (&logger, logger_type,
-				  syslog_facility, syslog_priority,
-				  syslog_tag, NULL))
+  rc = mu_stdstream_strerr_create (&logger, logger_type,
+				   syslog_facility, syslog_priority,
+				   syslog_tag, NULL);
+  if (rc)
     {
       mu_error (_("cannot create log stream: %s"),
 		mu_strerror (rc));