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cat: Give a better error if the user specified no drives on command line.
[libguestfs.git]
/
cat
/
virt-cat.c
diff --git
a/cat/virt-cat.c
b/cat/virt-cat.c
index
58ebd8e
..
3510a94
100644
(file)
--- a/
cat/virt-cat.c
+++ b/
cat/virt-cat.c
@@
-220,6
+220,10
@@
main (int argc, char *argv[])
if (optind >= argc || argc - optind < 1)
usage (EXIT_FAILURE);
if (optind >= argc || argc - optind < 1)
usage (EXIT_FAILURE);
+ /* User must have specified some drives. */
+ if (drvs == NULL)
+ usage (EXIT_FAILURE);
+
/* Add drives, inspect and mount. Note that inspector is always true,
* and there is no -m option.
*/
/* Add drives, inspect and mount. Note that inspector is always true,
* and there is no -m option.
*/