faraphel/chrony
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client: use getopt() for command line parsing

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This commit is contained in:
Miroslav Lichvar 2017-05-25 16:02:41 +02:00
parent ae0c3bbbe8
commit 46fad717e5
1 changed files with 69 additions and 42 deletions
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111
client.c
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@ -3049,7 +3049,7 @@ process_line(char *line)
static int
process_args(int argc, char **argv, int multi)
{
int total_length, i, ret;
int total_length, i, ret = 0;
char *line;
total_length = 0;
@ -3104,53 +3104,80 @@ display_gpl(void)
/* ================================================== */
static void
print_help(const char *progname)
{
printf("Usage: %s [-h HOST] [-p PORT] [-n] [-c] [-d] [-4|-6] [-m] [COMMAND]\n",
progname);
}
/* ================================================== */
static void
print_version(void)
{
printf("chronyc (chrony) version %s (%s)\n", CHRONY_VERSION, CHRONYC_FEATURES);
}
/* ================================================== */
int
main(int argc, char **argv)
{
char *line;
const char *progname = argv[0];
const char *hostnames = NULL;
int ret = 1, multi = 0, family = IPADDR_UNSPEC;
int opt, ret = 1, multi = 0, family = IPADDR_UNSPEC;
int port = DEFAULT_CANDM_PORT;
/* Parse command line options */
while (++argv, --argc) {
if (!strcmp(*argv, "-h")) {
++argv, --argc;
if (*argv) {
hostnames = *argv;
}
} else if (!strcmp(*argv, "-p")) {
++argv, --argc;
if (*argv) {
port = atoi(*argv);
}
} else if (!strcmp(*argv, "-f")) {
++argv, --argc;
/* For compatibility */
} else if (!strcmp(*argv, "-a")) {
/* For compatibility */
} else if (!strcmp(*argv, "-c")) {
csv_mode = 1;
} else if (!strcmp(*argv, "-d")) {
log_debug_enabled = 1;
} else if (!strcmp(*argv, "-m")) {
multi = 1;
} else if (!strcmp(*argv, "-n")) {
no_dns = 1;
} else if (!strcmp(*argv, "-4")) {
family = IPADDR_INET4;
} else if (!strcmp(*argv, "-6")) {
family = IPADDR_INET6;
} else if (!strcmp("-v", *argv) || !strcmp("--version",*argv)) {
printf("chronyc (chrony) version %s (%s)\n", CHRONY_VERSION, CHRONYC_FEATURES);
/* Parse (undocumented) long command-line options */
for (optind = 1; optind < argc; optind++) {
if (!strcmp("--help", argv[optind])) {
print_help(progname);
return 0;
} else if (!strncmp(*argv, "-", 1)) {
LOG(LOGS_ERR, "Usage: %s [-h HOST] [-p PORT] [-n] [-c] [-d] [-4|-6] [-m] [COMMAND]",
progname);
return 1;
} else {
break; /* And process remainder of line as a command */
} else if (!strcmp("--version", argv[optind])) {
print_version();
return 0;
}
}
optind = 1;
/* Parse short command-line options */
while ((opt = getopt(argc, argv, "46acdf:h:mnp:v")) != -1) {
switch (opt) {
case '4':
case '6':
family = opt == '4' ? IPADDR_INET4 : IPADDR_INET6;
break;
case 'a':
case 'f':
/* For compatibility only */
break;
case 'c':
csv_mode = 1;
break;
case 'd':
log_debug_enabled = 1;
break;
case 'h':
hostnames = optarg;
break;
case 'm':
multi = 1;
break;
case 'n':
no_dns = 1;
break;
case 'p':
port = atoi(optarg);
break;
case 'v':
print_version();
return 0;
default:
print_help(progname);
return 1;
}
}
@ -3158,7 +3185,7 @@ main(int argc, char **argv)
on_terminal = 1;
}
if (on_terminal && (argc == 0)) {
if (on_terminal && optind == argc) {
display_gpl();
}
@ -3175,8 +3202,8 @@ main(int argc, char **argv)
if (!open_io())
LOG_FATAL("Could not open connection to daemon");
if (argc > 0) {
ret = process_args(argc, argv, multi);
if (optind < argc) {
ret = process_args(argc - optind, argv + optind, multi);
} else {
do {
line = read_line();