83 lines
2.3 KiB
Diff
83 lines
2.3 KiB
Diff
From efff67c46ffeb0de69259e6c5cb9c4f6b82a860a Mon Sep 17 00:00:00 2001
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From: Kenneth D'souza <kdsouza@redhat.com>
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Date: Thu, 21 Feb 2019 10:39:25 +0530
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Subject: [PATCH 15/36] getcifsacl: Improve help usage and add -h option.
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Call getcifsacl_usage only for -h and default case.
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For others error out with appropriate message.
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Signed-off-by: Kenneth D'souza <kdsouza@redhat.com>
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(cherry picked from commit ea9b99cf17a949edbe368301881a353d27018847)
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Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
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---
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getcifsacl.c | 27 ++++++++++++++++++---------
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1 file changed, 18 insertions(+), 9 deletions(-)
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diff --git a/getcifsacl.c b/getcifsacl.c
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index aaf15fa..fc78881 100644
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--- a/getcifsacl.c
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+++ b/getcifsacl.c
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@@ -40,6 +40,7 @@
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static void *plugin_handle;
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static bool plugin_loaded;
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+static char *execname;
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static void
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print_each_ace_mask(uint32_t mask)
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@@ -331,6 +332,8 @@ getcifsacl_usage(const char *prog)
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prog);
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fprintf(stderr, "Usage: %s [option] <file_name>\n", prog);
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fprintf(stderr, "Valid options:\n");
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+ fprintf(stderr, "\t-h Display this help text\n");
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+ fprintf(stderr, "\n");
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fprintf(stderr, "\t-v Version of the program\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "\t-r Display raw values of the ACE fields\n");
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@@ -345,8 +348,15 @@ main(const int argc, char *const argv[])
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ssize_t attrlen;
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size_t bufsize = BUFSIZE;
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char *filename, *attrval;
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+ execname = basename(argv[0]);
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+
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+ if (argc < 2) {
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+ fprintf(stderr, "%s: you must specify a filename.\n", execname);
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+ printf("Try `getcifsacl -h' for more information.\n");
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+ goto out;
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+ }
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- while ((c = getopt_long(argc, argv, "r:v", NULL, NULL)) != -1) {
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+ while ((c = getopt_long(argc, argv, "rhv", NULL, NULL)) != -1) {
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switch (c) {
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case 'v':
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printf("Version: %s\n", VERSION);
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@@ -355,18 +365,17 @@ main(const int argc, char *const argv[])
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raw = true;
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break;
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default:
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- break;
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+ getcifsacl_usage(execname);
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+ goto out;
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}
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}
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- if (raw && argc == 3)
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- filename = argv[2];
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- else if (argc == 2)
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- filename = argv[1];
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- else {
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- getcifsacl_usage(basename(argv[0]));
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+ if (optind >= argc) {
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+ printf("you must specify a filename after options.\n");
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+ printf("Usage: getcifsacl [option] <file_name>\n");
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goto out;
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- }
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+ } else
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+ filename = argv[optind];
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if (!raw && !plugin_loaded) {
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ret = init_plugin(&plugin_handle);
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--
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1.8.3.1
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