lttng: add `help` command

[lttng-tools.git] / src / bin / lttng / lttng.c

diff --git a/src/bin/lttng/lttng.c b/src/bin/lttng/lttng.c
index aa13bc45dd57f621e539b62d4e1aa6f401947767..bcfbf88e65aed6c701e5d2e2a458a1c2e9918dd0 100644 (file)
--- a/src/bin/lttng/lttng.c
+++ b/src/bin/lttng/lttng.c
@@ -86,6 +86,7 @@ static struct cmd_struct commands[] =  {
        { "track", cmd_track},
        { "untrack", cmd_untrack},
        { "metadata", cmd_metadata},
+       { "help", NULL},
        { NULL, NULL}   /* Array closure */
 };
 
@@ -216,8 +217,14 @@ static int handle_command(int argc, char **argv)
                goto end;
        }
 
+       /* Special case for help command which needs the commands array */
+       if (strcmp(argv[0], "help") == 0) {
+               ret = cmd_help(argc, (const char**) argv, commands);
+               goto end;
+       }
+
        cmd = &commands[i];
-       while (cmd->func != NULL) {
+       while (cmd->name != NULL) {
                /* Find command */
                if (strcmp(argv[0], cmd->name) == 0) {
                        ret = cmd->func(argc, (const char**) argv);