1 files changed, 46 insertions, 40 deletions

diff --git a/cmd-line-utils/libedit/sig.c b/cmd-line-utils/libedit/sig.c
index 5307ee6ec60..986ad5792e2 100644
--- a/cmd-line-utils/libedit/sig.c
+++ b/cmd-line-utils/libedit/sig.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: sig.c,v 1.12 2008/09/10 15:45:37 christos Exp $	*/
+/*	$NetBSD: sig.c,v 1.17 2011/07/28 20:50:55 christos Exp $	*/
 
 /*-
  * Copyright (c) 1992, 1993
@@ -57,15 +57,15 @@ private const int sighdl[] = {
 	- 1
 };
 
-private void el_sig_handler(int);
+private void sig_handler(int);
 
-/* el_sig_handler():
+/* sig_handler():
  *	This is the handler called for all signals
  *	XXX: we cannot pass any data so we just store the old editline
  *	state in a private variable
  */
 private void
-el_sig_handler(int signo)
+sig_handler(int signo)
 {
 	int i;
 	sigset_t nset, oset;
@@ -74,12 +74,14 @@ el_sig_handler(int signo)
 	(void) sigaddset(&nset, signo);
 	(void) sigprocmask(SIG_BLOCK, &nset, &oset);
 
+	sel->el_signal->sig_no = signo;
+
 	switch (signo) {
 	case SIGCONT:
 		tty_rawmode(sel);
 		if (ed_redisplay(sel, 0) == CC_REFRESH)
 			re_refresh(sel);
-		term__flush(sel);
+		terminal__flush(sel);
 		break;
 
 	case SIGWINCH:
@@ -95,7 +97,10 @@ el_sig_handler(int signo)
 		if (signo == sighdl[i])
 			break;
 
-	(void) signal(signo, sel->el_signal[i]);
+	(void) sigaction(signo, &sel->el_signal->sig_action[i], NULL);
+	sel->el_signal->sig_action[i].sa_handler = SIG_ERR;
+	sel->el_signal->sig_action[i].sa_flags = 0;
+	sigemptyset(&sel->el_signal->sig_action[i].sa_mask);
 	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
 	(void) kill(0, signo);
 }
@@ -107,26 +112,29 @@ el_sig_handler(int signo)
 protected int
 sig_init(EditLine *el)
 {
-	int i;
-	sigset_t nset, oset;
+	size_t i;
+	sigset_t *nset, oset;
 
-	(void) sigemptyset(&nset);
-#define	_DO(a) (void) sigaddset(&nset, a);
+	el->el_signal = el_malloc(sizeof(*el->el_signal));
+	if (el->el_signal == NULL)
+		return -1;
+
+	nset = &el->el_signal->sig_set;
+	(void) sigemptyset(nset);
+#define	_DO(a) (void) sigaddset(nset, a);
 	ALLSIGS
 #undef	_DO
-	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+	(void) sigprocmask(SIG_BLOCK, nset, &oset);
 
-#define	SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(el_signalhandler_t))
-
-	el->el_signal = (el_signalhandler_t *) el_malloc(SIGSIZE);
-	if (el->el_signal == NULL)
-		return (-1);
-	for (i = 0; sighdl[i] != -1; i++)
-		el->el_signal[i] = SIG_ERR;
+	for (i = 0; sighdl[i] != -1; i++) {
+		el->el_signal->sig_action[i].sa_handler = SIG_ERR;
+		el->el_signal->sig_action[i].sa_flags = 0;
+		sigemptyset(&el->el_signal->sig_action[i].sa_mask);
+	}
 
 	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
 
-	return (0);
+	return 0;
 }
 
 
@@ -137,7 +145,7 @@ protected void
 sig_end(EditLine *el)
 {
 
-	el_free((ptr_t) el->el_signal);
+	el_free(el->el_signal);
 	el->el_signal = NULL;
 }
 
@@ -148,20 +156,21 @@ sig_end(EditLine *el)
 protected void
 sig_set(EditLine *el)
 {
-	int i;
-	sigset_t nset, oset;
+	size_t i;
+	sigset_t oset;
+	struct sigaction osa, nsa;
 
-	(void) sigemptyset(&nset);
-#define	_DO(a) (void) sigaddset(&nset, a);
-	ALLSIGS
-#undef	_DO
-	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+	nsa.sa_handler = sig_handler;
+	nsa.sa_flags = 0;
+	sigemptyset(&nsa.sa_mask);
+
+	(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
 
 	for (i = 0; sighdl[i] != -1; i++) {
-		el_signalhandler_t s;
 		/* This could happen if we get interrupted */
-		if ((s = signal(sighdl[i], el_sig_handler)) != el_sig_handler)
-			el->el_signal[i] = s;
+		if (sigaction(sighdl[i], &nsa, &osa) != -1 &&
+		    osa.sa_handler != sig_handler)
+			el->el_signal->sig_action[i] = osa;
 	}
 	sel = el;
 	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
@@ -174,20 +183,17 @@ sig_set(EditLine *el)
 protected void
 sig_clr(EditLine *el)
 {
-	int i;
-	sigset_t nset, oset;
+	size_t i;
+	sigset_t oset;
 
-	(void) sigemptyset(&nset);
-#define	_DO(a) (void) sigaddset(&nset, a);
-	ALLSIGS
-#undef	_DO
-	    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+	(void) sigprocmask(SIG_BLOCK, &el->el_signal->sig_set, &oset);
 
 	for (i = 0; sighdl[i] != -1; i++)
-		if (el->el_signal[i] != SIG_ERR)
-			(void) signal(sighdl[i], el->el_signal[i]);
+		if (el->el_signal->sig_action[i].sa_handler != SIG_ERR)
+			(void)sigaction(sighdl[i],
+			    &el->el_signal->sig_action[i], NULL);
 
 	sel = NULL;		/* we are going to die if the handler is
 				 * called */
-	(void) sigprocmask(SIG_SETMASK, &oset, NULL);
+	(void)sigprocmask(SIG_SETMASK, &oset, NULL);
 }