Backport a bugfix from glibc-2.2.5 to glibc-2.2.2 for the following problem:

  When syslog-ng is restarted (or HUPed), vixie-cron (and probably other

  programs) stop logging to syslog.

2001-08-27 Ulrich Drepper <Drepper@redhat.com> * misc/syslog.c (vsyslog):

  Try a bit harder to use syslogd.  If the connection went down after we

  first used it try to connect again and resend the message before printing

  to the console.

http://sourceware.org/cgi-bin/cvsweb.cgi/libc/misc/Attic/syslog.c.diff?r1=1.32&r2=1.30&cvsroot=glibc

[ paths adjusted ]

===================================================================

RCS file: /cvs/glibc/libc/misc/Attic/syslog.c,v

retrieving revision 1.30

retrieving revision 1.32

diff -u -r1.30 -r1.32

--- glibc-2.2.2/misc/syslog.c	2001/08/24 03:21:14	1.30

+++ glibc-2.2.5/misc/syslog.c	2001/08/30 23:13:49	1.32

@@ -239,17 +239,29 @@

 	if (!connected || __send(LogFile, buf, bufsize, 0) < 0)

 	  {

-	    closelog_internal ();	/* attempt re-open next time */

-	    /*

-	     * Output the message to the console; don't worry about blocking,

-	     * if console blocks everything will.  Make sure the error reported

-	     * is the one from the syslogd failure.

-	     */

-	    if (LogStat & LOG_CONS &&

-		(fd = __open(_PATH_CONSOLE, O_WRONLY|O_NOCTTY, 0)) >= 0)

+	    if (connected)

 	      {

-		dprintf (fd, "%s\r\n", buf + msgoff);

-		(void)__close(fd);

+		/* Try to reopen the syslog connection.  Maybe it went

+		   down.  */

+		closelog_internal ();

+		openlog_internal(LogTag, LogStat | LOG_NDELAY, 0);

+	      }

+

+	    if (!connected || __send(LogFile, buf, bufsize, 0) < 0)

+	      {

+		closelog_internal ();	/* attempt re-open next time */

+		/*

+		 * Output the message to the console; don't worry

+		 * about blocking, if console blocks everything will.

+		 * Make sure the error reported is the one from the

+		 * syslogd failure.

+		 */

+		if (LogStat & LOG_CONS &&

+		    (fd = __open(_PATH_CONSOLE, O_WRONLY|O_NOCTTY, 0)) >= 0)

+		  {

+		    dprintf (fd, "%s\r\n", buf + msgoff);

+		    (void)__close(fd);

+		  }

 	      }

 	  }