tools: Print error and exit if invalid command is passed to idevicesyslog

1 files changed, 3 insertions, 0 deletions

diff --git a/tools/idevicesyslog.c b/tools/idevicesyslog.c
index dc404b0..c8f4613 100644
--- a/tools/idevicesyslog.c
+++ b/tools/idevicesyslog.c
@@ -1224,6 +1224,9 @@ int main(int argc, char *argv[])
                                 fclose(outf);
                         }
                         return 0;
+                } else {
+                        fprintf(stderr, "Unknown command '%s'. See --help for valid commands.\n", argv[0]);
+                        return 1;
                 }
         }