Author: imp
Date: Sat Feb 25 00:09:12 2017
New Revision: 314229
URL: https://svnweb.freebsd.org/changeset/base/314229
Log:
Exit with usage if argv[1] is NULL in dispatch. This fixes core dumps
when a command has subcommands, but the user doesn't give the
parameters on the command line.
Sponsored by: Netflix
Modified:
head/sbin/nvmecontrol/nvmecontrol.c
Modified: head/sbin/nvmecontrol/nvmecontrol.c
==============================================================================
--- head/sbin/nvmecontrol/nvmecontrol.c Sat Feb 25 00:09:02 2017
(r314228)
+++ head/sbin/nvmecontrol/nvmecontrol.c Sat Feb 25 00:09:12 2017
(r314229)
@@ -75,6 +75,11 @@ dispatch(int argc, char *argv[], struct
{
struct nvme_function *f = tbl;
+ if (argv[1] == NULL) {
+ gen_usage(tbl);
+ return;
+ }
+
while (f->name != NULL) {
if (strcmp(argv[1], f->name) == 0)
f->fn(argc-1, &argv[1]);
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