diff options
| author |   mickey <mickey@openbsd.org> | 1997-04-02 05:20:02 +0000 |
|---|---|---|
| committer | mickey <mickey@openbsd.org> | 1997-04-02 05:20:02 +0000 |
| commit | 0014b71a79814214ddff4e1f192c5d65b7544d0a (patch) | |
| tree | 23e8eb5aa417288dee0de5fb067bc0211e8369ad | |
| parent | add dumb probe routine (diff) | |
| download | wireguard-openbsd-0014b71a79814214ddff4e1f192c5d65b7544d0a.tar.xz wireguard-openbsd-0014b71a79814214ddff4e1f192c5d65b7544d0a.zip | |
fd < 0 is evil
| -rw-r--r-- | sys/lib/libsa/readdir.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/lib/libsa/readdir.c b/sys/lib/libsa/readdir.c index 5671962ecab..b01ecdda9b0 100644 --- a/sys/lib/libsa/readdir.c +++ b/sys/lib/libsa/readdir.c @@ -1,4 +1,4 @@ -/* $OpenBSD: readdir.c,v 1.1 1997/02/16 14:48:06 mickey Exp $ */ +/* $OpenBSD: readdir.c,v 1.2 1997/04/02 05:20:02 mickey Exp $ */ /* * Copyright (c) 1996 Michael Shalayeff @@ -69,10 +69,12 @@ readdir(fd, dest) { register struct open_file *f = &files[fd]; - if ((unsigned)fd >= SOPEN_MAX || !(f->f_flags & F_READ)) { + if (fd < 0 || fd >= SOPEN_MAX || + !((f = &files[fd])->f_flags & F_READ)) { errno = EBADF; return (-1); } + if (f->f_flags & F_RAW) { errno = EINVAL; return (-1); |