diff options
| author | Ted Unangst <tedu@cvs.openbsd.org> | 2004-01-12 18:06:52 +0000 |
|---|---|---|
| committer | Ted Unangst <tedu@cvs.openbsd.org> | 2004-01-12 18:06:52 +0000 |
| commit | 861dfb10bccb89b85bd11a3b64d5b847e874faa0 (patch) | |
| tree | 05a3e45d1f3a32ff5ae339f50e1f3254646d0211 /sys | |
| parent | cb66f6f34a3b631749dd8d2ab1d977832d85f679 (diff) | |
new syscall closefrom(int fd) closes all fds equal and greater than fd.
ok deraadt@ millert@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/kern_descrip.c | 24 | ||||
| -rw-r--r-- | sys/kern/syscalls.master | 3 |
2 files changed, 25 insertions, 2 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index 5650bd03f38..58887c072d3 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_descrip.c,v 1.67 2004/01/06 04:18:18 tedu Exp $ */ +/* $OpenBSD: kern_descrip.c,v 1.68 2004/01/12 18:06:51 tedu Exp $ */ /* $NetBSD: kern_descrip.c,v 1.42 1996/03/30 22:24:38 christos Exp $ */ /* @@ -1295,3 +1295,25 @@ fdcloseexec(p) if (fdp->fd_ofileflags[fd] & UF_EXCLOSE) (void) fdrelease(p, fd); } + +int +sys_closefrom(struct proc *p, void *v, register_t *retval) +{ + struct sys_closefrom_args *uap = v; + struct filedesc *fdp = p->p_fd; + u_int startfd, i; + + startfd = SCARG(uap, fd); + fdplock(fdp, p); + + if (startfd > fdp->fd_lastfile) { + fdpunlock(fdp); + return (EBADF); + } + + for (i = startfd; i <= fdp->fd_lastfile; i++) + fdrelease(p, i); + + fdpunlock(fdp); + return (0); +} diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master index b8bb6d8cd50..6b5d16cc497 100644 --- a/sys/kern/syscalls.master +++ b/sys/kern/syscalls.master @@ -1,4 +1,4 @@ -; $OpenBSD: syscalls.master,v 1.65 2003/12/31 00:13:24 millert Exp $ +; $OpenBSD: syscalls.master,v 1.66 2004/01/12 18:06:51 tedu Exp $ ; $NetBSD: syscalls.master,v 1.32 1996/04/23 10:24:21 mycroft Exp $ ; @(#)syscalls.master 8.2 (Berkeley) 1/13/94 @@ -575,3 +575,4 @@ 285 OBSOL sys_omquery 286 STD { void *sys_mquery(void *addr, size_t len, int prot, \ int flags, int fd, long pad, off_t pos); } +287 STD { int sys_closefrom(int fd); } |