diff options
| -rw-r--r-- | sys/kern/vfs_syscalls.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c index 46df453aa0c..ebfa0276489 100644 --- a/sys/kern/vfs_syscalls.c +++ b/sys/kern/vfs_syscalls.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vfs_syscalls.c,v 1.23 1997/02/14 17:20:09 deraadt Exp $ */ +/* $OpenBSD: vfs_syscalls.c,v 1.24 1997/02/26 16:38:20 niklas Exp $ */ /* $NetBSD: vfs_syscalls.c,v 1.71 1996/04/23 10:29:02 mycroft Exp $ */ /* @@ -1166,7 +1166,7 @@ sys_lseek(p, v, retval) register struct file *fp; struct vattr vattr; struct vnode *vp; - int error; + int error, special; if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles || (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL) @@ -1176,9 +1176,13 @@ sys_lseek(p, v, retval) vp = (struct vnode *)fp->f_data; if (vp->v_type == VFIFO) return (ESPIPE); + if (vp->v_type == VCHR) + special = 1; + else + special = 0; switch (SCARG(uap, whence)) { case L_INCR: - if (fp->f_offset + SCARG(uap, offset) < 0) + if (!special && fp->f_offset + SCARG(uap, offset) < 0) return (EINVAL); fp->f_offset += SCARG(uap, offset); break; @@ -1187,12 +1191,12 @@ sys_lseek(p, v, retval) cred, p); if (error) return (error); - if ((off_t)vattr.va_size + SCARG(uap, offset) < 0) + if (!special && (off_t)vattr.va_size + SCARG(uap, offset) < 0) return (EINVAL); fp->f_offset = SCARG(uap, offset) + vattr.va_size; break; case L_SET: - if (SCARG(uap, offset) < 0) + if (!special && SCARG(uap, offset) < 0) return (EINVAL); fp->f_offset = SCARG(uap, offset); break; |