[src/trunk]: src/usr.sbin/pkg_install/lib Fix off-by-one error. (This was det...

[hubertf <hubertf%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6856c1bac5ac
branches:  trunk
changeset: 471748:6856c1bac5ac
user:      hubertf <hubertf%NetBSD.org@localhost>
date:      Sat Apr 10 02:17:21 1999 +0000

description:
Fix off-by-one error. (This was detected using libefence)

diffstat:

 usr.sbin/pkg_install/lib/str.c |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (36 lines):

diff -r 24425c28b24d -r 6856c1bac5ac usr.sbin/pkg_install/lib/str.c
--- a/usr.sbin/pkg_install/lib/str.c    Sat Apr 10 02:15:46 1999 +0000
+++ b/usr.sbin/pkg_install/lib/str.c    Sat Apr 10 02:17:21 1999 +0000
@@ -1,11 +1,11 @@
-/*     $NetBSD: str.c,v 1.14 1999/03/22 05:02:41 hubertf Exp $ */
+/*     $NetBSD: str.c,v 1.15 1999/04/10 02:17:21 hubertf Exp $ */
 
 #include <sys/cdefs.h>
 #ifndef lint
 #if 0
 static const char *rcsid = "Id: str.c,v 1.5 1997/10/08 07:48:21 charnier Exp";
 #else
-__RCSID("$NetBSD: str.c,v 1.14 1999/03/22 05:02:41 hubertf Exp $");
+__RCSID("$NetBSD: str.c,v 1.15 1999/04/10 02:17:21 hubertf Exp $");
 #endif
 #endif
 
@@ -50,15 +50,15 @@
        char    *s;
        char    *t;
 
-       if ((s = strrchr(path, '/')) == (char *) NULL) {
+       if ((s = strrchr(path, '/')) == NULL) {
                return ".";
        }
        if (s == path) {
                /* "/foo" -> return "/" */
                return "/";
        }
-       cc = (size_t)(s - path) + 1;
-       if ((t = (char *) malloc(cc)) == (char *) NULL) {
+       cc = (size_t)(s - path);
+       if ((t = (char *) malloc(cc+1)) == (char *) NULL) {
                errx(1, "out of memory in dirname_of");
        }
        (void) memcpy(t, path, cc);