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Properly handle -h / -V for --help/--version aliases in virtlockd/libvirtd

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The virtlockd/libvirtd daemons had listed '?' as the short option
for --help. getopt_long uses '?' for any unknown option. We want
to be able to distinguish unknown options (which use EXIT_FAILURE)
from correct usage of help (which should use EXIT_SUCCESS). Thus
we should use 'h' as a short option for --help. Also add this to
the man page docs

The virtlockd/libvirtd daemons did not list any short option
for the --version arg. Add -V as a valid short option, since
-v is already used for --verbose.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
2013-08-13 12:14:15 +01:00
parent a396473494
commit 63ba687f2b
4 changed files with 38 additions and 36 deletions
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33
daemon/libvirtd.c
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@@ -1038,12 +1038,13 @@ daemonUsage(const char *argv0, bool privileged)
" %s [options]\n"
"\n"
"Options:\n"
" -h | --help Display program help:\n"
" -v | --verbose Verbose messages.\n"
" -d | --daemon Run as a daemon & write PID file.\n"
" -l | --listen Listen for TCP/IP connections.\n"
" -t | --timeout <secs> Exit after timeout period.\n"
" -f | --config <file> Configuration file.\n"
" | --version Display version information.\n"
" -V | --version Display version information.\n"
" -p | --pid-file <file> Change name of PID file.\n"
"\n"
"libvirt management daemon:\n"),
@@ -1098,10 +1099,6 @@ daemonUsage(const char *argv0, bool privileged)
}
}
enum {
OPT_VERSION = 129
};
#define MAX_LISTEN 5
int main(int argc, char **argv) {
virNetServerPtr srv = NULL;
@@ -1123,14 +1120,14 @@ int main(int argc, char **argv) {
mode_t old_umask;
struct option opts[] = {
{ "verbose", no_argument, &verbose, 1},
{ "daemon", no_argument, &godaemon, 1},
{ "listen", no_argument, &ipsock, 1},
{ "verbose", no_argument, &verbose, 'v'},
{ "daemon", no_argument, &godaemon, 'd'},
{ "listen", no_argument, &ipsock, 'l'},
{ "config", required_argument, NULL, 'f'},
{ "timeout", required_argument, NULL, 't'},
{ "pid-file", required_argument, NULL, 'p'},
{ "version", no_argument, NULL, OPT_VERSION },
{ "help", no_argument, NULL, '?' },
{ "version", no_argument, NULL, 'V' },
{ "help", no_argument, NULL, 'h' },
{0, 0, 0, 0}
};
@@ -1173,7 +1170,7 @@ int main(int argc, char **argv) {
int c;
char *tmp;
c = getopt_long(argc, argv, "ldf:p:t:v", opts, &optidx);
c = getopt_long(argc, argv, "ldf:p:t:vVh", opts, &optidx);
if (c == -1) {
break;
@@ -1219,17 +1216,17 @@ int main(int argc, char **argv) {
}
break;
case OPT_VERSION:
case 'V':
daemonVersion(argv[0]);
return 0;
exit(EXIT_SUCCESS);
case 'h':
daemonUsage(argv[0], privileged);
exit(EXIT_SUCCESS);
case '?':
daemonUsage(argv[0], privileged);
return 2;
default:
VIR_ERROR(_("%s: internal error: unknown flag: %c"),
argv[0], c);
daemonUsage(argv[0], privileged);
exit(EXIT_FAILURE);
}
}