git-fetch: Don't trigger a bus error when given the refspec "tag"

When git-fetch encounters the refspec "tag" it assumes that the next argument will be a tag name. If there is no next argument, it should die gracefully instead of erroring. Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Kevin Ballard committed Apr 5, 2008 at 14:28 UTC f53423b0e09d0de9584f72ac298bdfdc9e886d73

1 file changed +2

builtin-fetch.c

@@ -637,6 +637,8 @@ int cmd_fetch(int argc, const char **argv, const char *prefix)

637 if (!strcmp(argv[i], "tag")) {

638 char *ref;

639 i++;

640 + if (i >= argc)

641 + die("You need to specify a tag name.");

642 ref = xmalloc(strlen(argv[i]) * 2 + 22);

643 strcpy(ref, "refs/tags/");

644 strcat(ref, argv[i]);