Remove deprecated interfaces.

* include/mailutils/error.h (mu_error_pfn_t, mu_default_error_printer)
(mu_syslog_error_printer): Remove deprecated interfaces.
* libmailutils/diag/muerror.c: Likewise.
* libmailutils/stream/logstream.c (_log_write): Send
MU_IOCTL_LOGSTREAM_SET_SEVERITY to the transport stream.
* libmailutils/stream/syslogstream.c (_syslog_ctl): Translate
MU severity to syslog priority level and vice versa.
* mu/logger.c (mutool_logger): Bugfix.

@@ -28,14 +28,8 @@
 extern "C" {
 #endif
 
-typedef int (*mu_error_pfn_t) (const char *fmt, va_list ap);
-
 extern int mu_verror (const char *fmt, va_list ap);
 extern int mu_error (const char *fmt, ...) MU_PRINTFLIKE(1,2);
-extern void mu_error_set_print (mu_error_pfn_t) __attribute__((deprecated));
-
-int mu_default_error_printer (const char *fmt, va_list ap);
-int mu_syslog_error_printer (const char *fmt, va_list ap);
 
 #ifdef __cplusplus
 }

@@ -47,70 +47,5 @@ mu_error (const char *fmt, ...)
 }
 
 
-/* Compatibility layer */
-int
-mu_default_error_printer (const char *fmt, va_list ap)
-{
-  if (mu_program_name)
-    fprintf (stderr, "%s: ", mu_program_name);
-  vfprintf (stderr, fmt, ap);
-  fputc ('\n', stderr);
-  return 0;
-}
-
-int
-mu_syslog_error_printer (const char *fmt, va_list ap)
-{
-#ifdef HAVE_VSYSLOG
-  vsyslog (LOG_CRIT, fmt, ap);
-#else
-  char buf[128];
-  vsnprintf (buf, sizeof buf, fmt, ap);
-  syslog (LOG_CRIT, "%s", buf);
-#endif
-  return 0;
-}
-
-static void
-compat_error_printer0 (mu_error_pfn_t pfn, const char *fmt, ...)
-{
-  va_list ap;
-  va_start (ap, fmt);
-  pfn (fmt, ap);
-  va_end (ap);
-}
-
-static int
-compat_error_printer (void *data, mu_log_level_t level, const char *buf)
-{
-  if (!data)
-    mu_diag_stderr_printer (NULL, level, buf);
-  else
-    {
-      int len = strlen (buf);
-      if (len > 0 && buf[len-1] == '\n')
-	len--;
-      compat_error_printer0 (data, "%-.*s", len, buf);
-    }
-  return 0;
-}
-
-void
-mu_error_set_print (mu_error_pfn_t pfn)
-{
-  mu_debug_t debug;
-  mu_diag_get_debug (&debug);
-  mu_debug_set_print (debug, compat_error_printer, NULL);
-  mu_debug_set_data (debug, pfn, NULL, NULL);
-#if 0
- {
-   static int warned;
-   if (!warned)
-     {
-       warned = 1;
-       mu_diag_output ("this program uses mu_error_set_print, which is deprecated");
-     }
-#endif
-}
 
 

@@ -159,6 +159,8 @@ _log_write (struct _mu_stream *str, const char *buf, size_t size,
   if (severity >= _mu_severity_num)
     severity = MU_LOG_EMERG;
 
+  mu_stream_ioctl (sp->transport, MU_IOCTL_LOGSTREAM_SET_SEVERITY, &severity);
+  
   if (logmode & MU_LOGMODE_LOCUS)
     {
       if (fname)

@@ -21,6 +21,7 @@
 #include <syslog.h>
 #include <errno.h>
 #include <string.h>
+#include <mailutils/errno.h>
 #include <mailutils/stream.h>
 #include <mailutils/sys/syslogstream.h>
 
@@ -39,23 +40,44 @@ _syslog_stream_write (struct _mu_stream *stream, const char *buf,
   return 0;
 }
 
+static int sev2prio[] = {
+  LOG_DEBUG,
+  LOG_INFO,
+  LOG_NOTICE,
+  LOG_WARNING,
+  LOG_ERR,
+  LOG_CRIT,
+  LOG_ALERT,
+  LOG_EMERG
+};
+
 static int
 _syslog_ctl (struct _mu_stream *str, int op, void *arg)
 {
   struct _mu_syslog_stream *sp = (struct _mu_syslog_stream *)str;
+  unsigned n;
   
   switch (op)
     {
     case MU_IOCTL_LOGSTREAM_GET_SEVERITY:
       if (!arg)
 	return EINVAL;
-      *(int*)arg = sp->prio;
+      for (n = 0; n < MU_ARRAY_SIZE (sev2prio); n++)
+	if (sev2prio[n] == sp->prio)
+	  {
+	    *(int*)arg = n;
 	    break;
+	  }
+      return MU_ERR_FAILURE;
       
     case MU_IOCTL_LOGSTREAM_SET_SEVERITY:
       if (!arg)
 	return EINVAL;
-      sp->prio = *(int*)arg;
+      n = *(unsigned*)arg;
+      if (n < MU_ARRAY_SIZE (sev2prio))
+	sp->prio = sev2prio[n];
+      else
+	return EINVAL;
       break;
 
     default:

@@ -184,6 +184,7 @@ mutool_logger (int argc, char **argv)
 	  mu_stream_write (logger, argv[i], strlen (argv[i]), NULL);
 	}
       mu_stream_write (logger, "\n", 1, NULL);
+      return 0;
     }
   else if (!input_file || strcmp (input_file, "-") == 0)
     {