zero link count table increased 50 => 500; corrupted directories now pfatal.

[unix-history] / usr / src / sbin / umount / umount.c

diff --git a/usr/src/sbin/umount/umount.c b/usr/src/sbin/umount/umount.c
index 16cc42b..d094118 100644 (file)
--- a/usr/src/sbin/umount/umount.c
+++ b/usr/src/sbin/umount/umount.c
@@ -1,4 +1,4 @@
-static char *sccsid = "@(#)umount.c    4.5 (Berkeley) %G%";
+static char *sccsid = "@(#)umount.c    4.6 (Berkeley) %G%";

 
 #include <stdio.h>
 #include <fstab.h>
 
 #include <stdio.h>
 #include <fstab.h>


@@ -31,12 +31,12 @@ main(argc, argv)
        mf = open("/etc/mtab", 0);
        read(mf, (char *)mtab, sizeof (mtab));
 again:
        mf = open("/etc/mtab", 0);
        read(mf, (char *)mtab, sizeof (mtab));
 again:

-       if (!strcmp(*argv, "-v")) {
+       if (argc > 0 && !strcmp(*argv, "-v")) {

                vflag++;
                argc--, argv++;
                goto again;
        }
                vflag++;
                argc--, argv++;
                goto again;
        }

-       if (!strcmp(*argv, "-a")) {
+       if (argc > 0 && !strcmp(*argv, "-a")) {

                all++;
                argc--, argv++;
                goto again;
                all++;
                argc--, argv++;
                goto again;