1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include "chkpath.h" 28 #include <string.h> 29 #include <sys/file.h> 30 #include <sys/syscall.h> 31 32 int 33 execve(char *file, char **argv, char **arge) 34 { 35 char *c; 36 char path[256]; 37 38 39 CHKNULL(file); 40 if (strncmp(file, "/usr/ucb", strlen("/usr/ucb")) == 0) { 41 if (_syscall(SYS_faccessat, AT_FDCWD, file, F_OK, 0) == -1) { 42 strcpy(path, "/usr/bin"); 43 strcat(path, strrchr(file, '/')); 44 file = path; 45 } 46 } 47 else if (strncmp(file, "/bin", strlen("/bin")) == 0 || 48 strncmp(file, "/usr/bin", strlen("/usr/bin")) == 0) { 49 strcpy(path, "/usr/ucb"); 50 strcat(path, strrchr(file, '/')); 51 if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0) 52 file = path; 53 } 54 else if (strncmp(file, "/usr/5bin", strlen("/usr/5bin")) == 0) { 55 strcpy(path, "/usr/bin"); 56 strcat(path, strrchr(file, '/')); 57 if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) == 0) 58 file = path; 59 else { 60 strcpy(path, "/usr/ucb"); 61 strcat(path, strrchr(file, '/')); 62 if (_syscall(SYS_faccessat, AT_FDCWD, path, F_OK, 0) 63 == 0) 64 file = path; 65 } 66 } 67 68 return (_syscall(SYS_execve, file, argv, arge)); 69 } 70