Add -h option to babeltrace-log

[babeltrace.git] / converter / babeltrace-log.c

diff --git a/converter/babeltrace-log.c b/converter/babeltrace-log.c
index 3e37e538fda52c36713e803489f19942e944ea63..dfcfde71c9697b3a74341969d59e057219eb5ea4 100644 (file)
--- a/converter/babeltrace-log.c
+++ b/converter/babeltrace-log.c
@@ -45,6 +45,7 @@ int babeltrace_debug, babeltrace_verbose;
 
 static char *s_outputname;
 static int s_timestamp;
+static int s_help;
 static uuid_t s_uuid;
 
 /* Metadata format string */
@@ -59,7 +60,7 @@ static const char metadata_fmt[] =
 "      byte_order = %s;\n"             /* be or le */
 "      packet.header := struct {\n"
 "              uint32_t magic;\n"
-"              uint8_t  trace_uuid[16];\n"
+"              uint8_t  uuid[16];\n"
 "      };\n"
 "};\n"
 "\n"
@@ -111,7 +112,7 @@ void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
        *(uint32_t *) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
        ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
 
-       /* trace_uuid */
+       /* uuid */
        ctf_dummy_pos(pos, &dummy);
        ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
        ctf_move_pos(&dummy, 16 * CHAR_BIT);
@@ -264,6 +265,11 @@ int parse_args(int argc, char **argv)
        for (i = 1; i < argc; i++) {
                if (!strcmp(argv[i], "-t"))
                        s_timestamp = 1;
+               else if (!strcmp(argv[i], "-h")) {
+                       s_help = 1;
+                       return 0;
+               } else if (argv[i][0] == '-')
+                       return -EINVAL;
                else
                        s_outputname = argv[i];
        }
@@ -281,10 +287,16 @@ int main(int argc, char **argv)
 
        ret = parse_args(argc, argv);
        if (ret) {
+               fprintf(stdout, "Error: invalid argument.\n");
                usage(stdout);
                goto error;
        }
 
+       if (s_help) {
+               usage(stdout);
+               exit(EXIT_SUCCESS);
+       }
+
        ret = mkdir(s_outputname, S_IRWXU|S_IRWXG);
        if (ret) {
                perror("mkdir");