17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*8fd04b83SRoger A. Faulkner * Common Development and Distribution License (the "License").
6*8fd04b83SRoger A. Faulkner * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
21*8fd04b83SRoger A. Faulkner
227c478bd9Sstevel@tonic-gate /*
23*8fd04b83SRoger A. Faulkner * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #include "chkpath.h"
287c478bd9Sstevel@tonic-gate #include <string.h>
297c478bd9Sstevel@tonic-gate #include <sys/file.h>
307c478bd9Sstevel@tonic-gate #include <sys/syscall.h>
317c478bd9Sstevel@tonic-gate
325d54f3d8Smuffin int
execve(char * file,char ** argv,char ** arge)335d54f3d8Smuffin execve(char *file, char **argv, char **arge)
347c478bd9Sstevel@tonic-gate {
357c478bd9Sstevel@tonic-gate char *c;
367c478bd9Sstevel@tonic-gate char path[256];
377c478bd9Sstevel@tonic-gate
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate CHKNULL(file);
407c478bd9Sstevel@tonic-gate if (strncmp(file, "/usr/ucb", strlen("/usr/ucb")) == 0) {
41*8fd04b83SRoger A. Faulkner if (_syscall(SYS_faccessat, AT_FDCWD, file, F_OK, 0) == -1) {
427c478bd9Sstevel@tonic-gate strcpy(path, "/usr/bin");
437c478bd9Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
447c478bd9Sstevel@tonic-gate file = path;
457c478bd9Sstevel@tonic-gate }
467c478bd9Sstevel@tonic-gate }
477c478bd9Sstevel@tonic-gate else if (strncmp(file, "/bin", strlen("/bin")) == 0 ||
487c478bd9Sstevel@tonic-gate strncmp(file, "/usr/bin", strlen("/usr/bin")) == 0) {
497c478bd9Sstevel@tonic-gate strcpy(path, "/usr/ucb");
507c478bd9Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
51*8fd04b83SRoger A. Faulkner if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0)
527c478bd9Sstevel@tonic-gate file = path;
537c478bd9Sstevel@tonic-gate }
547c478bd9Sstevel@tonic-gate else if (strncmp(file, "/usr/5bin", strlen("/usr/5bin")) == 0) {
557c478bd9Sstevel@tonic-gate strcpy(path, "/usr/bin");
567c478bd9Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
57*8fd04b83SRoger A. Faulkner if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0)
587c478bd9Sstevel@tonic-gate file = path;
597c478bd9Sstevel@tonic-gate else {
607c478bd9Sstevel@tonic-gate strcpy(path, "/usr/ucb");
617c478bd9Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
62*8fd04b83SRoger A. Faulkner if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0)
63*8fd04b83SRoger A. Faulkner == 0)
647c478bd9Sstevel@tonic-gate file = path;
657c478bd9Sstevel@tonic-gate }
667c478bd9Sstevel@tonic-gate }
677c478bd9Sstevel@tonic-gate
687c478bd9Sstevel@tonic-gate return (_syscall(SYS_execve, file, argv, arge));
697c478bd9Sstevel@tonic-gate }
70