diff options
| author | Otto Moerbeek <otto@cvs.openbsd.org> | 2006-11-07 18:47:47 +0000 |
|---|---|---|
| committer | Otto Moerbeek <otto@cvs.openbsd.org> | 2006-11-07 18:47:47 +0000 |
| commit | c43ed259113b93b9a5a70101bbd0b332d6ac867a (patch) | |
| tree | 14080ad7c331b768b95108e3a16f7d7ab61875fe /bin/dd/position.c | |
| parent | 5a7d4ef645f0280a25fd3ae70ca0f714125ecfbb (diff) | |
It is better to use isatty() to see if a dev is seekable, because
skipping blocks on a raw disk device with bad sectors should be possible.
Noted by Geoff Steckel; ok tom@ deraadt@
Diffstat (limited to 'bin/dd/position.c')
| -rw-r--r-- | bin/dd/position.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/bin/dd/position.c b/bin/dd/position.c index 6c6b98d80ff..d0ea5598176 100644 --- a/bin/dd/position.c +++ b/bin/dd/position.c @@ -1,4 +1,4 @@ -/* $OpenBSD: position.c,v 1.8 2006/11/07 07:10:24 otto Exp $ */ +/* $OpenBSD: position.c,v 1.9 2006/11/07 18:47:46 otto Exp $ */ /* $NetBSD: position.c,v 1.4 1995/03/21 09:04:12 cgd Exp $ */ /*- @@ -38,7 +38,7 @@ #if 0 static char sccsid[] = "@(#)position.c 8.3 (Berkeley) 4/2/94"; #else -static char rcsid[] = "$OpenBSD: position.c,v 1.8 2006/11/07 07:10:24 otto Exp $"; +static char rcsid[] = "$OpenBSD: position.c,v 1.9 2006/11/07 18:47:46 otto Exp $"; #endif #endif /* not lint */ @@ -70,8 +70,8 @@ pos_in(void) off_t cnt; int warned; - /* If not a pipe, tape or char device, try to seek on it. */ - if (!(in.flags & (ISPIPE|ISTAPE|ISCHR))) { + /* If not a pipe, tape or tty device, try to seek on it. */ + if (!(in.flags & (ISPIPE|ISTAPE)) && !isatty(in.fd)) { if (lseek(in.fd, in.offset * in.dbsz, SEEK_CUR) == -1) err(1, "%s", in.name); return; |