X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=cat%2Fvirt-cat.c;h=ebae8952216af9ff7fc9a08ef262b1d804f42762;hb=6f09e4774ce64a15424a2601df10326d764cc7f7;hp=58ebd8ec6c61b3c42ebe7efbdc0ca440962373a4;hpb=d29e9a552f5823d1d8cb8d4962cb1301bbf60b0e;p=libguestfs.git

diff --git a/cat/virt-cat.c b/cat/virt-cat.c
index 58ebd8e..ebae895 100644
--- a/cat/virt-cat.c
+++ b/cat/virt-cat.c
@@ -69,7 +69,7 @@ usage (int status)
              "  --keys-from-stdin    Read passphrases from stdin\n"
              "  -v|--verbose         Verbose messages\n"
              "  -V|--version         Display version and exit\n"
-             "  -x                   Echo each command before executing it\n"
+             "  -x                   Trace libguestfs API calls\n"
              "For more information, see the manpage %s(1).\n"),
              program_name, program_name, program_name,
              program_name);
@@ -220,6 +220,10 @@ main (int argc, char *argv[])
   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.
    */
@@ -233,13 +237,15 @@ main (int argc, char *argv[])
   /* Free up data structures, no longer needed after this point. */
   free_drives (drvs);
 
+  unsigned errors = 0;
+
   while (optind < argc) {
     if (guestfs_download (g, argv[optind], "/dev/stdout") == -1)
-      exit (EXIT_FAILURE);
+      errors++;
     optind++;
   }
 
   guestfs_close (g);
 
-  exit (EXIT_SUCCESS);
+  exit (errors == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
 }