Author: eadler
Date: Thu Nov 15 15:06:03 2012
New Revision: 243076
URL: http://svnweb.freebsd.org/changeset/base/243076
Log:
Check the range of the gid
Approved by: cperciva
MFC after: 1 week
Modified:
head/usr.sbin/chkgrp/chkgrp.c
Modified: head/usr.sbin/chkgrp/chkgrp.c
==============================================================================
--- head/usr.sbin/chkgrp/chkgrp.c Thu Nov 15 15:06:00 2012
(r243075)
+++ head/usr.sbin/chkgrp/chkgrp.c Thu Nov 15 15:06:03 2012
(r243076)
@@ -30,7 +30,10 @@
__FBSDID("$FreeBSD$");
#include <err.h>
+#include <errno.h>
#include <ctype.h>
+#include <limits.h>
+#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -150,6 +153,18 @@ main(int argc, char *argv[])
warnx("%s: line %d: GID is not numeric", gfn, n);
e++;
}
+
+ /* check the range of the group id */
+ errno = 0;
+ unsigned long groupid = strtoul(f[2], NULL, 10);
+ if (errno != 0) {
+ warnx("%s: line %d: strtoul failed", gfn, n);
+ }
+ else if (groupid > GID_MAX) {
+ warnx("%s: line %d: group id is too large (> %ju)",
+ gfn, n, (uintmax_t)GID_MAX);
+ e++;
+ }
#if 0
/* entry is correct, so print it */
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