7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * CDDL HEADER START
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * The contents of this file are subject to the terms of the
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Common Development and Distribution License (the "License").
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * You may not use this file except in compliance with the License.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * or http://www.opensolaris.org/os/licensing.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * See the License for the specific language governing permissions
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * and limitations under the License.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * When distributing Covered Code, include this CDDL HEADER in each
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * If applicable, add the following below this CDDL HEADER, with the
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * fields enclosed by brackets "[]" replaced with your own identifying
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * information: Portions Copyright [yyyy] [name of copyright owner]
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * CDDL HEADER END
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/*
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Use is subject to license terms.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/types.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/param.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/sysmacros.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/signal.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/cred.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/user.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/errno.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/vnode.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/proc.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/cmn_err.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/debug.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/pathname.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/disp.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/exec.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/kmem.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/note.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * This is the loadable module wrapper.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#include <sys/modctl.h>
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz/* Local prototypes */
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainzstatic int
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinshbinexec(
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct vnode *vp,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct execa *uap,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct uarg *args,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct intpdata *idatap,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int level,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin long *execsz,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int setid,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin caddr_t exec_file,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct cred *cred,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int brand_action);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#define SHBIN_CNTL(x) ((x)&037)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#define SHBINMAGIC_LEN 4
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinextern char shbinmagicstr[];
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Our list where we may find a copy of ksh93. The ordering is:
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 1. 64bit (may not be installed or not supported in hardware)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 2. 32bit
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * 3. Use /sbin/ksh93 when /usr is not available
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * ([1] and [2] explicitly bypass /usr/bin/ksh93 to avoid the
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * isaexec overhead).
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic char *shell_list[] =
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/* Bypass /usr/bin/ksh93 (which is "isaexec") for performance */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#if defined(__sparc)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/usr/bin/sparcv9/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/usr/bin/sparcv7/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#elif defined(__amd64)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/usr/bin/amd64/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/usr/bin/i86/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#elif defined(__i386)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/usr/bin/i86/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#else
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#error "Unrecognized platform/CPU (use /usr/bin/ksh93 when in doubt)."
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin#endif
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin "/sbin/ksh93",
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin NULL
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin};
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic struct execsw esw = {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin shbinmagicstr,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin 0,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin SHBINMAGIC_LEN,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin shbinexec,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin NULL
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin};
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin/*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Module linkage information for the kernel.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinextern struct mod_ops mod_execops;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic struct modlexec modlexec = {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin &mod_execops, "exec mod for shell binaries (ksh93)", &esw
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin};
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic struct modlinkage modlinkage = {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin MODREV_1, (void *)&modlexec, NULL
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin};
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinint
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin_init(void)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (mod_install(&modlinkage));
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin}
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinint
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin_fini(void)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (mod_remove(&modlinkage));
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin}
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinint
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin_info(struct modinfo *modinfop)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (mod_info(&modlinkage, modinfop));
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin}
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinstatic int
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chincheckshbinmagic(struct vnode *vp)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int error;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin char linep[SHBINMAGIC_LEN];
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin ssize_t resid;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Read the entire line and confirm that it starts with the magic
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * sequence for compiled ksh93 shell scripts.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error = vn_rdwr(UIO_READ, vp, linep, sizeof (linep), (offset_t)0,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin UIO_SYSSPACE, 0, (rlim64_t)0, CRED(), &resid))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (error);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (memcmp(linep, shbinmagicstr, SHBINMAGIC_LEN) != 0)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (ENOEXEC);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (0);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin}
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainzstatic int
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinshbinexec(
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct vnode *vp,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct execa *uap,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct uarg *args,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct intpdata *idatap,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int level,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin long *execsz,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int setid,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin caddr_t exec_file,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct cred *cred,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int brand_action)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin{
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin _NOTE(ARGUNUSED(brand_action))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin vnode_t *nvp;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int error = 0;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct intpdata idata;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct pathname intppn;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin struct pathname resolvepn;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin char *opath;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin char devfd[19]; /* 32-bit int fits in 10 digits + 8 for "/dev/fd/" */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int fd = -1;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin int i;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (level) { /* Can't recurse */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin error = ENOEXEC;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin goto bad;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin ASSERT(idatap == (struct intpdata *)NULL);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Check whether the executable has the correct magic value.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error = checkshbinmagic(vp))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin goto fail;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin pn_alloc(&resolvepn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * Travel the list of shells and look for one which is available...
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin for (i = 0; shell_list[i] != NULL; i++) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin error = pn_get(shell_list[i], UIO_SYSSPACE, &intppn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error != 0) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin break;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin error = lookuppn(&intppn, &resolvepn, FOLLOW, NULLVPP, &nvp);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (!error) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* Found match */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin break;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* No match found ? Then continue with the next item... */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin pn_free(&intppn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin pn_free(&resolvepn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin goto fail;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz /*
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz * Setup interpreter data
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz * "--" is passed to mark the end-of-arguments before adding
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz * the scripts file name, preventing problems when a
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz * a script's name starts with a '-' character.
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz */
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz idata.intp = NULL;
93cf283ac1d0119d2ee3842f515f8d0e1bc7cbdbJerry Jelinek idata.intp_name[0] = shell_list[i];
93cf283ac1d0119d2ee3842f515f8d0e1bc7cbdbJerry Jelinek idata.intp_arg[0] = "--";
ce67301fa82625f5594913e8ab6abf9e0aa461d0Roland Mainz
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin opath = args->pathname;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin args->pathname = resolvepn.pn_path;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /* don't free resolvepn until we are done with args */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin pn_free(&intppn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin /*
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * When we're executing a set-uid script resulting in uids
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * mismatching or when we execute with additional privileges,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * we close the "replace script between exec and open by shell"
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin * hole by passing the script as /dev/fd parameter.
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin */
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if ((setid & EXECSETID_PRIVS) != 0 ||
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (setid & (EXECSETID_UGIDS|EXECSETID_SETID)) ==
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (EXECSETID_UGIDS|EXECSETID_SETID)) {
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (void) strcpy(devfd, "/dev/fd/");
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error = execopen(&vp, &fd))
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin goto done;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin numtos(fd, &devfd[8]);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin args->fname = devfd;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin error = gexec(&nvp, uap, args, &idata, ++level, execsz, exec_file, cred,
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin EBA_NONE);
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao if (!error) {
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao /*
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao * Close this script as the sh interpreter
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao * will open and close it later on.
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao */
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao (void) VOP_CLOSE(vp, FREAD, 1, (offset_t)0, cred, NULL);
a4aeef46cda1835da2b19f8f62b4526de6521e6cDonghai Qiao }
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chindone:
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin VN_RELE(nvp);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin args->pathname = opath;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin pn_free(&resolvepn);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinfail:
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin if (error && fd != -1)
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin (void) execclose(fd);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chinbad:
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin return (error);
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin}