diff options
Diffstat (limited to 'getcifsacl.c')
| -rw-r--r-- | getcifsacl.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/getcifsacl.c b/getcifsacl.c index aaf15fa..fc78881 100644 --- a/getcifsacl.c +++ b/getcifsacl.c @@ -40,6 +40,7 @@ static void *plugin_handle; static bool plugin_loaded; +static char *execname; static void print_each_ace_mask(uint32_t mask) @@ -331,6 +332,8 @@ getcifsacl_usage(const char *prog) prog); fprintf(stderr, "Usage: %s [option] <file_name>\n", prog); fprintf(stderr, "Valid options:\n"); + fprintf(stderr, "\t-h Display this help text\n"); + fprintf(stderr, "\n"); fprintf(stderr, "\t-v Version of the program\n"); fprintf(stderr, "\n"); fprintf(stderr, "\t-r Display raw values of the ACE fields\n"); @@ -345,8 +348,15 @@ main(const int argc, char *const argv[]) ssize_t attrlen; size_t bufsize = BUFSIZE; char *filename, *attrval; + execname = basename(argv[0]); + + if (argc < 2) { + fprintf(stderr, "%s: you must specify a filename.\n", execname); + printf("Try `getcifsacl -h' for more information.\n"); + goto out; + } - while ((c = getopt_long(argc, argv, "r:v", NULL, NULL)) != -1) { + while ((c = getopt_long(argc, argv, "rhv", NULL, NULL)) != -1) { switch (c) { case 'v': printf("Version: %s\n", VERSION); @@ -355,18 +365,17 @@ main(const int argc, char *const argv[]) raw = true; break; default: - break; + getcifsacl_usage(execname); + goto out; } } - if (raw && argc == 3) - filename = argv[2]; - else if (argc == 2) - filename = argv[1]; - else { - getcifsacl_usage(basename(argv[0])); + if (optind >= argc) { + printf("you must specify a filename after options.\n"); + printf("Usage: getcifsacl [option] <file_name>\n"); goto out; - } + } else + filename = argv[optind]; if (!raw && !plugin_loaded) { ret = init_plugin(&plugin_handle); |