10Sstevel@tonic-gate /*
20Sstevel@tonic-gate * CDDL HEADER START
30Sstevel@tonic-gate *
40Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*11798SRoger.Faulkner@Sun.COM * Common Development and Distribution License (the "License").
6*11798SRoger.Faulkner@Sun.COM * You may not use this file except in compliance with the License.
70Sstevel@tonic-gate *
80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
100Sstevel@tonic-gate * See the License for the specific language governing permissions
110Sstevel@tonic-gate * and limitations under the License.
120Sstevel@tonic-gate *
130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
180Sstevel@tonic-gate *
190Sstevel@tonic-gate * CDDL HEADER END
200Sstevel@tonic-gate */
21*11798SRoger.Faulkner@Sun.COM
220Sstevel@tonic-gate /*
23*11798SRoger.Faulkner@Sun.COM * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
240Sstevel@tonic-gate * Use is subject to license terms.
250Sstevel@tonic-gate */
260Sstevel@tonic-gate
270Sstevel@tonic-gate #include <string.h>
280Sstevel@tonic-gate #include <sys/file.h>
290Sstevel@tonic-gate #include <sys/syscall.h>
300Sstevel@tonic-gate
31722Smuffin int
execve(char * file,char ** argv,char ** arge)32722Smuffin execve(char *file, char **argv, char **arge)
330Sstevel@tonic-gate {
340Sstevel@tonic-gate char *c;
350Sstevel@tonic-gate char path[256];
360Sstevel@tonic-gate
370Sstevel@tonic-gate if (strncmp(file, "/usr/bin", strlen("/usr/bin")) == 0 ||
380Sstevel@tonic-gate strncmp(file, "/bin", strlen("/bin")) == 0) {
39*11798SRoger.Faulkner@Sun.COM if (_syscall(SYS_faccessat, AT_FDCWD, file, F_OK, 0) == -1) {
400Sstevel@tonic-gate strcpy(path, "/usr/ucb");
410Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
420Sstevel@tonic-gate file = path;
430Sstevel@tonic-gate }
440Sstevel@tonic-gate }
450Sstevel@tonic-gate else if (strncmp(file, "/usr/ucb", strlen("/usr/ucb")) == 0) {
460Sstevel@tonic-gate strcpy(path, "/usr/bin");
470Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
48*11798SRoger.Faulkner@Sun.COM if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0)
490Sstevel@tonic-gate file = path;
500Sstevel@tonic-gate }
510Sstevel@tonic-gate else if (strncmp(file, "/usr/5bin", strlen("/usr/5bin")) == 0) {
520Sstevel@tonic-gate strcpy(path, "/usr/bin");
530Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
54*11798SRoger.Faulkner@Sun.COM if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0)
550Sstevel@tonic-gate file = path;
560Sstevel@tonic-gate else {
570Sstevel@tonic-gate strcpy(path, "/usr/ucb");
580Sstevel@tonic-gate strcat(path, strrchr(file, '/'));
59*11798SRoger.Faulkner@Sun.COM if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0)
60*11798SRoger.Faulkner@Sun.COM == 0)
610Sstevel@tonic-gate file = path;
620Sstevel@tonic-gate }
630Sstevel@tonic-gate }
640Sstevel@tonic-gate
65722Smuffin return (_syscall(SYS_execve, file, argv, arge));
660Sstevel@tonic-gate }
67