1 files changed, 14 insertions(+), 3 deletions(-)

M progress/use_progress.c

@@ 5,6 5,14 @@
 #define TOTAL	300
 #define DELAY	200
 
+static char usage_string[] =
+	"Usage: use_progress [options]...\n\n"
+	"Options:\n"
+	"  -t, --total <int>     The total progress.\n"
+	"  -d, --delay <int>     The delay to add.\n"
+	"  -m, --message <msg>   Set process message.\n"
+	"  -h, --help            Print this help message and exit.\n";
+
 /* Keep the configuration in a struct */
 static struct {
 	int delay;


@@ 37,24 45,27 @@ read_cmd_args(int nargs, char **argv)
 
 	for (i=0 ; i < nargs ; i++) {
 		arg = argv[i];
-		if (!strcmp(arg, "--delay") || !strcmp(arg, "-d")) {
+		if (!strcmp(arg, "-d") || !strcmp(arg, "--delay")) {
 			if (i+1 > nargs) {
 				printf("Missing integer argument to %s.\n", arg);
 				exit(EXIT_FAILURE);
 			}
 			parse_int_arg(arg, argv[++i], &config.delay);
-		} else if (!strcmp(arg, "--total") || !strcmp(arg, "-t")) {
+		} else if (!strcmp(arg, "-t") || !strcmp(arg, "--total")) {
 			if (i+1 > nargs) {
 				printf("Missing integer argument to %s.\n", arg);
 				exit(EXIT_FAILURE);
 			}
 			parse_int_arg(arg, argv[++i], &config.total);
-		} else if (!strcmp(arg, "--message") || !strcmp(arg, "-m")) {
+		} else if (!strcmp(arg, "-m") || !strcmp(arg, "--message")) {
 			if (i+1 > nargs) {
 				printf("Missing string argument to %s.\n", arg);
 				exit(EXIT_FAILURE);
 			}
 			config.msg = argv[++i]; /* No errors here */
+		} else if (!strcmp(arg, "-h") || !strcmp(arg, "--help")) {
+			printf("%s", usage_string);
+			exit(EXIT_SUCCESS);
 		} else {
 			if (arg[0] == '-')
 				printf("Unrecognized option: %s\n", arg);