From b8e785a96f907022466bd383ec6afaa201e5f759 Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Mon, 12 Jun 2017 12:50:52 +0200 Subject: nor-utils: Return error code if command line option is unknown The tools in question will quit with an exit code 0 if the command line option was not recognized. By returning an error code a calling script has the possibility to distinguish between a real success and an invalid invocation. Signed-off-by: Daniel Wagner Signed-off-by: David Oberhollenzer --- nor-utils/rfdformat.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'nor-utils/rfdformat.c') diff --git a/nor-utils/rfdformat.c b/nor-utils/rfdformat.c index d393975..1f01a85 100644 --- a/nor-utils/rfdformat.c +++ b/nor-utils/rfdformat.c @@ -30,7 +30,7 @@ #include "common.h" -void display_help(void) +void display_help(int status) { printf("Usage: %s [OPTIONS] MTD-device\n" "Formats NOR flash for resident flash disk\n" @@ -38,7 +38,7 @@ void display_help(void) "-h --help display this help and exit\n" "-V --version output version information and exit\n", PROGRAM_NAME); - exit(0); + exit(status); } void display_version(void) @@ -69,7 +69,7 @@ void process_options(int argc, char *argv[], const char **mtd_filename) switch (c) { case 'h': - display_help(); + display_help(EXIT_SUCCESS); break; case 'V': display_version(); @@ -81,7 +81,7 @@ void process_options(int argc, char *argv[], const char **mtd_filename) } if ((argc - optind) != 1 || error) - display_help(); + display_help(EXIT_FAILURE); *mtd_filename = argv[optind]; } -- cgit v1.2.3