example: add getopt_long option parsing

Signed-off-by: Patrick McHardy <kaber@trash.net>

example/common.c

@@ -5,7 +5,8 @@
 #include <dect/libdect.h>
 #include "common.h"
 
-const struct dect_ipui ipui = {
+const char *cluster;
+struct dect_ipui ipui = {
 	.put		= DECT_IPUI_N,
 	.pun.n.ipei	= {
 		.emc	= 0x0ba8,
@@ -13,6 +14,18 @@ const struct dect_ipui ipui = {
 	},
 };
 
+int dect_parse_ipui(struct dect_ipui *ipui, const char *optarg)
+{
+	ipui->put = DECT_IPUI_N;
+	if (sscanf(optarg, "%04hx%05x",
+		   &ipui->pun.n.ipei.emc,
+		   &ipui->pun.n.ipei.psn) != 2) {
+		fprintf(stderr, "could not parse IPUI '%s'\n", optarg);
+		return -1;
+	}
+	return 0;
+}
+
 void pexit(const char *str)
 {
 	perror(str);

example/common.h

@@ -6,6 +6,8 @@
 #include <list.h>
 
 extern struct dect_handle *dh;
+extern struct dect_ipui ipui;
+extern const char *cluster;
 
 extern int dect_event_ops_init(struct dect_ops *ops);
 extern void dect_event_loop(void);
@@ -17,17 +19,18 @@ extern void dect_debug_init(void);
 extern void dect_common_init(struct dect_ops *ops, const char *cluster);
 extern void dect_common_cleanup(struct dect_handle *dh);
 
+extern int dect_parse_ipui(struct dect_ipui *ipui, const char *optarg);
+
 extern int dect_write_uak(const struct dect_ipui *ipui,
 			  const uint8_t uak[DECT_AUTH_KEY_LEN]);
 extern int dect_read_uak(const struct dect_ipui *ipui,
 			 uint8_t uak[DECT_AUTH_KEY_LEN]);
 
-extern const struct dect_ipui ipui;
-
 extern void dect_pp_auth_init(struct dect_ops *ops,
 			      const struct dect_ipui *ipui);
 extern void dect_pp_common_init(struct dect_ops *ops, const char *cluster,
 				const struct dect_ipui *ipui);
+extern void dect_pp_common_options(int argc, char **argv);
 extern void dect_pp_init_terminal_capability(struct dect_ie_terminal_capability *tcap);
 
 struct mm_auth_priv {

example/pp-access-rights-terminate.c

@@ -45,7 +45,8 @@ int main(int argc, char **argv)
 {
 	struct dect_mm_endpoint *mme;
 
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	mme = dect_mm_endpoint_alloc(dh, &ipui);
 	if (mme == NULL)

example/pp-access-rights.c

@@ -7,10 +7,10 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <getopt.h>
 #include <fcntl.h>
 #include <string.h>
 #include <inttypes.h>
@@ -173,15 +173,57 @@ static struct dect_ops ops = {
 	.mm_ops			= &mm_ops,
 };
 
+enum {
+	OPT_CLUSTER	= 'c',
+	OPT_IPUI	= 'i',
+	OPT_PIN		= 'p',
+	OPT_HELP	= 'h',
+};
+
+static const struct option options[] = {
+	{ .name = "cluster",	.has_arg = true,  .flag = NULL, .val = OPT_CLUSTER },
+	{ .name = "ipui",	.has_arg = true,  .flag = NULL, .val = OPT_IPUI },
+	{ .name = "pin",	.has_arg = true,  .flag = NULL, .val = OPT_PIN },
+	{ .name = "help",	.has_arg = false, .flag = NULL, .val = OPT_HELP },
+	{ },
+};
+
 int main(int argc, char **argv)
 {
 	struct dect_mm_endpoint *mme;
+	const char *cluster = NULL;
+	int optidx = 0, c;
+
+	for (;;) {
+		c = getopt_long(argc, argv, "c:p:h", options, &optidx);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case OPT_CLUSTER:
+			cluster = optarg;
+			break;
+		case OPT_IPUI:
+			if (dect_parse_ipui(&ipui, optarg) < 0)
+				exit(1);
+			break;
+		case OPT_PIN:
+			pin = optarg;
+			break;
+		case OPT_HELP:
+			printf("%s [ -c/--cluster NAME ] [ -p/--pin PIN ] [ -h/--help ]\n",
+			      argv[0]);
+			exit(0);
+		case '?':
+			exit(1);
+		}
+	}
 
 	rand_fd = open("/dev/urandom", O_RDONLY);
 	if (rand_fd < 0)
 		pexit("open /dev/urandom");
 
-	dect_common_init(&ops, argv[1]);
+	dect_common_init(&ops, cluster);
 
 	if (!(dect_llme_fp_capabilities(dh)->hlc &
 	      DECT_HLC_ACCESS_RIGHTS_REQUESTS)) {

example/pp-clms.c

@@ -50,7 +50,8 @@ static struct dect_ops ops = {
 
 int main(int argc, char **argv)
 {
-	dect_common_init(&ops, argv[1]);
+	dect_pp_common_options(argc, argv);
+	dect_common_init(&ops, cluster);
 
 	dect_event_loop();
 

example/pp-common.c

@@ -8,6 +8,11 @@
  * published by the Free Software Foundation.
  */
 
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
 #include <dect/libdect.h>
 #include <dect/auth.h>
 #include "common.h"
@@ -42,3 +47,42 @@ void dect_pp_common_init(struct dect_ops *ops, const char *cluster,
 	dect_common_init(ops, cluster);
 	dect_pp_set_ipui(dh, ipui);
 }
+
+enum {
+	OPT_CLUSTER	= 'c',
+	OPT_IPUI	= 'i',
+	OPT_HELP	= 'h',
+};
+
+static const struct option options[] = {
+	{ .name = "cluster",	.has_arg = true,  .flag = NULL, .val = OPT_CLUSTER },
+	{ .name = "ipui",	.has_arg = true,  .flag = NULL, .val = OPT_IPUI },
+	{ .name = "help",	.has_arg = false, .flag = NULL, .val = OPT_HELP },
+	{ }
+};
+
+void dect_pp_common_options(int argc, char **argv)
+{
+	int optidx = 0, c;
+
+	for (;;) {
+		c = getopt_long(argc, argv, "c:h", options, &optidx);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case OPT_CLUSTER:
+			break;
+		case OPT_IPUI:
+			if (dect_parse_ipui(&ipui, optarg))
+				exit(1);
+			break;
+		case OPT_HELP:
+			printf("%s [ -c/--cluster NAME ] [ -h/--help ]\n",
+			       argv[0]);
+			exit(0);
+		case '?':
+			exit(1);
+		}
+	}
+}

example/pp-detach.c

@@ -31,7 +31,8 @@ int main(int argc, char **argv)
 {
         struct dect_mm_endpoint *mme;
 
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	mme = dect_mm_endpoint_alloc(dh, &ipui);
 	if (mme == NULL)

example/pp-info-request.c

@@ -49,7 +49,8 @@ int main(int argc, char **argv)
 {
 	struct dect_mm_endpoint *mme;
 
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	mme = dect_mm_endpoint_alloc(dh, &ipui);
 	if (mme == NULL)

example/pp-list-access.c

@@ -71,7 +71,8 @@ int main(int argc, char **argv)
 {
 	const struct dect_fp_capabilities *fpc;
 
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	fpc = dect_llme_fp_capabilities(dh);
 	if (!(fpc->ehlc2 & DECT_EHLC2_LIST_ACCESS_FEATURES)) {

example/pp-location-update.c

@@ -60,7 +60,8 @@ int main(int argc, char **argv)
 	const struct dect_fp_capabilities *fpc;
 	struct dect_mm_endpoint *mme;
 
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	fpc = dect_llme_fp_capabilities(dh);
 	if (!(fpc->hlc & DECT_HLC_LOCATION_REGISTRATION)) {

example/pp-wait-page.c

@@ -16,7 +16,8 @@ static struct dect_ops ops;
 
 int main(int argc, char **argv)
 {
-	dect_pp_common_init(&ops, argv[1], &ipui);
+	dect_pp_common_options(argc, argv);
+	dect_pp_common_init(&ops, cluster, &ipui);
 
 	dect_event_loop();