syslogd/sysklogd-1.4.1-reload.dif

--- syslogd.c
+++ syslogd.c	2010-03-29 15:12:11.000000000 +0000
@@ -565,7 +565,7 @@ char	**parts;
 int inetm = 0;
 static int debugging_on = 0;
 static int nlogs = -1;
-static int restart = 0;
+static volatile sig_atomic_t restart;
 
 #define MAXFUNIX	20
 
@@ -1096,6 +1096,7 @@ int main(argc, argv)
 
 	dprintf("Starting.\n");
 	init();
+	(void) signal(SIGHUP, sighup_handler);
 #ifndef TESTING
 	if ( Debug )
 	{
@@ -1167,9 +1168,22 @@ int main(argc, argv)
 				  (fd_set *) NULL, (struct timeval *) NULL);
 		if ( restart )
 		{
+#ifndef _BSD_SOURCE
+			int omask = sigblock(sigmask(SIGHUP));
+#else
+			sigset_t blockhup;
+			sigemptyset(&blockhup);
+			sigaddset  (&blockhup, SIGHUP);
+			(void) sigprocmask(SIG_BLOCK, &blockhup, NULL);
+#endif
+			restart = 0;
 			dprintf("\nReceived SIGHUP, reloading syslogd.\n");
 			init();
-			restart = 0;
+#ifndef _BSD_SOURCE
+			(void) sigsetmask(omask);
+#else
+			(void) sigprocmask (SIG_UNBLOCK, &blockhup, NULL);
+#endif
 			continue;
 		}
 		if (nfds == 0) {
@@ -1676,17 +1690,23 @@ void logmsg(pri, msg, from, flags)
 	register struct filed *f;
 	int fac, prilev;
 	int msglen;
-#ifndef SYSV
+#ifndef _BSD_SOURCE
 	int omask;
 #else
 	int lognum;
+	sigset_t nset, oset;
 #endif
 	char *timestamp;
 
 	dprintf("logmsg: %s, flags %x, from %s, msg %s\n", textpri(pri), flags, from, msg);
 
-#ifndef SYSV
+#ifndef _BSD_SOURCE
 	omask = sigblock(sigmask(SIGHUP)|sigmask(SIGALRM));
+#else
+	sigemptyset(&nset);
+	sigaddset  (&nset, SIGHUP);
+	sigaddset  (&nset, SIGALRM);
+	(void)sigprocmask(SIG_BLOCK, &nset, &oset);
 #endif
 
 	/*
@@ -1724,8 +1744,10 @@ void logmsg(pri, msg, from, flags)
 			(void) close(f->f_file);
 			f->f_file = -1;
 		}
-#ifndef SYSV
+#ifndef _BSD_SOURCE
 		(void) sigsetmask(omask);
+#else
+		(void)sigprocmask(SIG_SETMASK, &oset, NULL);
 #endif
 		return;
 	}
@@ -1789,8 +1811,10 @@ void logmsg(pri, msg, from, flags)
 			}
 		}
 	}
-#ifndef SYSV
+#ifndef _BSD_SOURCE
 	(void) sigsetmask(omask);
+#else
+	(void)sigprocmask(SIG_SETMASK, &oset, NULL);
 #endif
 }
 #if FALSE
@@ -2108,7 +2132,7 @@ void wallmsg(f, iov)
 		(void) signal(SIGTERM, SIG_DFL);
 		(void) alarm(0);
 		(void) signal(SIGALRM, endtty);
-#ifndef SYSV
+#ifndef _BSD_SOURCE
 		(void) signal(SIGTTOU, SIG_IGN);
 		(void) sigsetmask(0);
 #endif
@@ -2178,14 +2202,14 @@ void wallmsg(f, iov)
 void reapchild()
 {
 	int saved_errno = errno;
-#if defined(SYSV) && !defined(linux)
+#if defined(SYSV) && !defined(_BSD_SOURCE)
 	(void) signal(SIGCHLD, reapchild);	/* reset signal handler -ASP */
 	wait ((int *)0);
 #else
 	while (waitpid(-1, (int*)0, WNOHANG|WUNTRACED) > 0)
 		;
 #endif
-#ifdef linux
+#ifndef _BSD_SOURCE
 	(void) signal(SIGCHLD, reapchild);	/* reset signal handler -ASP */
 #endif
 	errno = saved_errno;
@@ -2318,7 +2342,9 @@ void debug_switch()
 {
 	dprintf("Switching debugging_on to %s\n", (debugging_on == 0) ? "true" : "false");
 	debugging_on = (debugging_on == 0) ? 1 : 0;
+#ifndef _BSD_SOURCE
 	signal(SIGUSR1, debug_switch);
+#endif
 }
 
 
@@ -2350,7 +2376,9 @@ void die(int sig)
 	(void) snprintf(buf, sizeof(buf), "exiting on signal %d", sig);
 	errno = 0;
 	logmsg(LOG_SYSLOG|LOG_INFO, buf, LocalHostName, ADDDATE);
+#ifdef _BSD_SOURCE
 	signal(sig, SIG_IGN);
+#endif
 }
 
 void dienow(void)
@@ -2664,7 +2692,6 @@ void init()
 		logmsg(LOG_SYSLOG|LOG_INFO, "syslogd " VERSION "." PATCHLEVEL \
 		       ": restart." , LocalHostName, ADDDATE);
 #endif
-	(void) signal(SIGHUP, sighup_handler);
 	dprintf("syslogd: restarted.\n");
 }
 #if FALSE
@@ -3061,7 +3088,9 @@ void sighup_handler()
 
 {
 	restart = 1;
+#ifndef _BSD_SOURCE
 	signal(SIGHUP, sighup_handler);
+#endif
 	return;
 }