Add manpages

1 files changed, 41 insertions, 2 deletions

diff --git a/src/ping903q.c b/src/ping903q.c
index 62bd69c..f9cd5fa 100644
--- a/src/ping903q.c
+++ b/src/ping903q.c
@@ -457,7 +457,7 @@ query_host(char const *name)
 	ssize_t n = snprintf(url, sizeof(url), "/host/%s", name);
 	if (n < 0 || n == sizeof(url)) {
 		fatal("bad host name or IP");
-		exit(EX_DATAERR);
+		exit(EX_USAGE);
 	}
 	http_query("GET", url, NULL);
 	http_resp_init(&resp);
@@ -536,7 +536,30 @@ query_all(void)
 		exit(EX_P903_NOTALIVE);
 	exit(EX_P903_MIXED);
 }
+
+void
+usage(void)
+{
+	printf("Usage: %s [-hVv] [-c FILE]\n", progname);
+	printf("Query ping903 daemon.\n");
+	printf("\n");
+	printf("Options:\n\n");
+	printf("  -c FILE        read configuration from FILE\n");
+	printf("  -h             print this help test\n");
+	printf("  -V             print program version and exit\n");
+	printf("  -v             additional verbosity\n");
+	printf("\n");
+	printf("Report bugs to <%s>.\n", PACKAGE_BUGREPORT);
+	printf("%s home page: <%s>\n", PACKAGE_NAME, PACKAGE_URL);
+}
 
+void
+version(void)
+{
+	printf("%s (%s) %s\n", progname, PACKAGE_NAME, PACKAGE_VERSION);
+	printf("%s", COPYLEFT);
+}
+
 int
 main(int argc, char **argv)
 {
@@ -544,11 +567,27 @@ main(int argc, char **argv)
 	char *p, *node, *service;
 
 	set_progname(argv[0]);
-	while ((c = getopt(argc, argv, "c:v")) != EOF) {
+	if (argc == 2) {
+		if (strcmp(argv[1], "--help") == 0) {
+			usage();
+			exit(0);
+		}
+		if (strcmp(argv[1], "--version") == 0) {
+			version();
+			exit(0);
+		}
+	}
+	while ((c = getopt(argc, argv, "c:hVv")) != EOF) {
 		switch (c) {
 		case 'c':
 			config_file = optarg;
 			break;
+		case 'h':
+			usage();
+			exit(0);
+		case 'V':
+			version();
+			exit(0);
 		case 'v':
 			verbose++;
 			break;