Use sys_nsig instead of NSIG for the length of the signal arrays. This

is important if we add new signals later.  From DragonflyBSD:
jobs.c:1.4, trap.c:1.3.

Obtained from:	DragonflyBSD

2 files changed, 6 insertions, 6 deletions

diff --git a/bin/sh/jobs.c b/bin/sh/jobs.c
index 7c9cfa4..36b075c 100644
--- a/bin/sh/jobs.c
+++ b/bin/sh/jobs.c
@@ -362,7 +362,7 @@ showjob(struct job *jp, pid_t pid, int sformat, int lformat)
 			else
 #endif
 				i = WTERMSIG(ps->status);
-			if ((i & 0x7F) < NSIG && sys_siglist[i & 0x7F])
+			if ((i & 0x7F) < sys_nsig && sys_siglist[i & 0x7F])
 				scopy(sys_siglist[i & 0x7F], s);
 			else
 				fmtstr(s, 64, "Signal %d", i & 0x7F);
@@ -985,7 +985,7 @@ dowait(int block, struct job *job)
 			if (!mflag ||
 			    (thisjob->foreground && !WIFSTOPPED(status))) {
 				i = WTERMSIG(status);
-				if ((i & 0x7F) < NSIG && sys_siglist[i & 0x7F])
+				if ((i & 0x7F) < sys_nsig && sys_siglist[i & 0x7F])
 					out1str(sys_siglist[i & 0x7F]);
 				else
 					out1fmt("Signal %d", i & 0x7F);
diff --git a/bin/sh/trap.c b/bin/sh/trap.c
index f848ee1..f00c6d5 100644
--- a/bin/sh/trap.c
+++ b/bin/sh/trap.c
@@ -106,8 +106,8 @@ sigstring_to_signum(char *sig)
 
 		if (strncasecmp(sig, "sig", 3) == 0)
 			sig += 3;
-		for (n = 1; n < NSIG; n++)
-			if (strcasecmp(sys_signame[n], sig) == 0)
+		for (n = 1; n < sys_nsig; n++)
+			if (sys_signame[n] && strcasecmp(sys_signame[n], sig) == 0)
 				return (n);
 	}
 	return (-1);
@@ -122,7 +122,7 @@ printsignals(void)
 {
 	int n;
 
-	for (n = 1; n < NSIG; n++) {
+	for (n = 1; n < sys_nsig; n++) {
 		out1fmt("%s", sys_signame[n]);
 		if (n == (NSIG / 2) || n == (NSIG - 1))
 			out1str("\n");
@@ -142,7 +142,7 @@ trapcmd(int argc, char **argv)
 	int signo;
 
 	if (argc <= 1) {
-		for (signo = 0 ; signo < NSIG ; signo++) {
+		for (signo = 0 ; signo < sys_nsig ; signo++) {
 			if (trap[signo] != NULL)
 				out1fmt("trap -- '%s' %s\n", trap[signo],
 					(signo) ? sys_signame[signo] : "exit");