Author: rgrimes
Date: Thu Apr 5 15:00:08 2018
New Revision: 332075
URL: https://svnweb.freebsd.org/changeset/base/332075
Log:
Exit with usage when extra arguments are on command line
preventing mistakes such as "halt 0p" for "halt -p".
Approved by: bde (mentor), phk (mentor)
MFC after: 1 week
Modified:
head/sbin/reboot/reboot.c
Modified: head/sbin/reboot/reboot.c
==============================================================================
--- head/sbin/reboot/reboot.c Thu Apr 5 14:55:44 2018 (r332074)
+++ head/sbin/reboot/reboot.c Thu Apr 5 15:00:08 2018 (r332075)
@@ -116,6 +116,8 @@ main(int argc, char *argv[])
}
argc -= optind;
argv += optind;
+ if (argc != 0)
+ usage();
if ((howto & (RB_DUMP | RB_HALT)) == (RB_DUMP | RB_HALT))
errx(1, "cannot dump (-d) when halting; must reboot instead");
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