According to both usage() and id.1, "id -R" doesn't accept any positional arguments. This diff makes program behave like that.
-Lucas diff refs/heads/master refs/heads/id-R-usage commit - 55055d619d36cc45f8c6891404c51cd405214e86 commit + 214ec9c042895b8482378b6ee43530ce4ffe9e21 blob - 30e2c58e088b69dba98577693e37dd961b4eadc4 blob + 1f4b678597065fb4243f660b4f66040021c56895 --- usr.bin/id/id.c +++ usr.bin/id/id.c @@ -128,6 +128,8 @@ main(int argc, char *argv[]) usage(); if (Rflag) { + if (argc != 0) + usage(); printf("%d\n", getrtable()); exit(0); }