Fix a NULL-dereferencing, that caused a segfault with QMAGIC (yay).

1993-05-03 20:51:56 +00:00 · 1993-05-03 20:51:56 +00:00 · 35127652d7
commit 35127652d7
parent aabb4903c2
1 changed files with 3 additions and 1 deletions
--- a/usr.bin/hexdump/odsyntax.c
+++ b/usr.bin/hexdump/odsyntax.c
@ -170,7 +170,9 @@ odoffset(argc, argvp)
 	 *
 	 * We assumes it's a file if the offset is bad.
 	 */
-	p = **argvp;
+
+        p = argc == 1 ? (*argvp)[0] : (*argvp)[1];                      
+
 	if (*p != '+' && (argc < 2 ||
 	    (!isdigit(p[0]) && (p[0] != 'x' || !ishexdigit(p[1])))))
 		return;