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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-08-02 11:12:21 -0400
committerAnthony G. Basile <blueness@gentoo.org>2014-08-05 08:38:32 -0400
commitd8808bc08276edf9e27b2b96bcd71fe4ca3a528c (patch)
treec3e0c4be9e036f8e51076822b80bf344aeefdf6d /test/test-libudev.c
parentba3e123a228142da43902fda5f63b1cf7cd7d96d (diff)
Unify parse_argv style
getopt is usually good at printing out a nice error message when commandline options are invalid. It distinguishes between an unknown option and a known option with a missing arg. It is better to let it do its job and not use opterr=0 unless we actually want to suppress messages. So remove opterr=0 in the few places where it wasn't really useful. When an error in options is encountered, we should not print a lengthy help() and overwhelm the user, when we know precisely what is wrong with the commandline. In addition, since help() prints to stdout, it should not be used except when requested with -h or --help. Also, simplify things here and there. Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
Diffstat (limited to 'test/test-libudev.c')
-rw-r--r--test/test-libudev.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/test/test-libudev.c b/test/test-libudev.c
index 92c5ceba15..0e1202b449 100644
--- a/test/test-libudev.c
+++ b/test/test-libudev.c
@@ -1,3 +1,4 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
@@ -423,6 +424,7 @@ int main(int argc, char *argv[]) {
const char *syspath = "/devices/virtual/mem/null";
const char *subsystem = NULL;
char path[1024];
+ int c;
udev = udev_new();
printf("context: %p\n", udev);
@@ -433,34 +435,38 @@ int main(int argc, char *argv[]) {
udev_set_log_fn(udev, log_fn);
printf("set log: %p\n", log_fn);
- for (;;) {
- int option;
- option = getopt_long(argc, argv, "+p:s:dhV", options, NULL);
- if (option == -1)
- break;
+ while ((c = getopt_long(argc, argv, "p:s:dhV", options, NULL)) >= 0)
+ switch (c) {
- switch (option) {
case 'p':
syspath = optarg;
break;
+
case 's':
subsystem = optarg;
break;
+
case 'd':
if (udev_get_log_priority(udev) < LOG_INFO)
udev_set_log_priority(udev, LOG_INFO);
break;
+
case 'h':
printf("--debug --syspath= --subsystem= --help\n");
goto out;
+
case 'V':
printf("%s\n", VERSION);
goto out;
- default:
+
+ case '?':
goto out;
+
+ default:
+ assert_not_reached("Unhandled option code.");
}
- }
+
/* add sys path if needed */
if (!startswith(syspath, "/sys")) {