From 8f26017bb9cb3f38424f50511263cf70e476d98b Mon Sep 17 00:00:00 2001
From: tjg <tjg>
Date: Thu, 15 Aug 2002 13:45:03 +0000
Subject:   Portability: don't call sigaction() for SIGKILL or SIGCONT; don't  
 hand a garbage signal mask to sigaction() (thanks Jeremy   Fitzhardinge). 
 Also, remove use of SA_INTERRUPT (SUSv3, BSD,   etc. have SA_RESTART with the
 inverted meaning).

---
 signal.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'signal.c')

diff --git a/signal.c b/signal.c
index de06633..dfdc8d0 100644
--- a/signal.c
+++ b/signal.c
@@ -8,17 +8,18 @@
 #include "sigmsgs.h"
 #include "jbwrap.h"
 
-#if HAVE_SA_INTERRUPT
+#if HAVE_SIGACTION
 static void (*sys_signal(int signum, void (*handler)(int)))(int) {
 	struct sigaction new, old;
 
 	new.sa_handler = handler;
-	new.sa_flags = SA_INTERRUPT;
+	new.sa_flags = 0; /* clear SA_RESTART */
+	sigfillset(&new.sa_mask);
 	sigaction(signum, &new, &old);
 	return old.sa_handler;
 }
 #else
-#define sys_signal signal
+#define sys_signal(sig, func) (signal((sig), (func)))
 #endif
 
 void (*sighandlers[NUMOFSIGNALS])(int);
@@ -40,7 +41,7 @@ extern void catcher(int s) {
 #if HAVE_RESTARTABLE_SYSCALLS
 	if (slow) {
 		siglongjmp(slowbuf.j, s);
-}
+	}
 #endif
 }
 
@@ -96,6 +97,12 @@ extern void initsignal() {
 #endif
 
 	for (i = 1; i < NUMOFSIGNALS; i++) {
+#ifdef SIGKILL
+		if (i == SIGKILL) continue;
+#endif
+#ifdef SIGCONT
+		if (i == SIGCONT) continue;
+#endif
 		h = sys_signal(i, SIG_IGN);
 		if (h != SIG_IGN && h != SIG_ERR)
 			sys_signal(i, h);
-- 
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