1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 1992 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate /* Copyright (c) 1984 AT&T */ 28*0Sstevel@tonic-gate /* All Rights Reserved */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.2 */ 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate /*LINTLIBRARY*/ 33*0Sstevel@tonic-gate #include <signal.h> 34*0Sstevel@tonic-gate #include <sys/types.h> 35*0Sstevel@tonic-gate #include <sys/wait.h> 36*0Sstevel@tonic-gate #include <string.h> 37*0Sstevel@tonic-gate #include <sys/file.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate extern int execl(); 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate int 42*0Sstevel@tonic-gate system(s) 43*0Sstevel@tonic-gate char *s; 44*0Sstevel@tonic-gate { 45*0Sstevel@tonic-gate int status; 46*0Sstevel@tonic-gate pid_t pid, w; 47*0Sstevel@tonic-gate register void (*istat)(), (*qstat)(); 48*0Sstevel@tonic-gate char path[256]; 49*0Sstevel@tonic-gate char *c; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate while (*s == ' ' || *s == '\t') 52*0Sstevel@tonic-gate s++; 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate if (strncmp(s, "/usr/ucb", strlen("/usr/ucb")) == 0) { 55*0Sstevel@tonic-gate /* check if command is under /usr/ucb, if not 56*0Sstevel@tonic-gate * replace /usr/ucb with /usr/bin. 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate strcpy(path, s); 59*0Sstevel@tonic-gate if ((c = strchr(path, ' ')) != NULL) 60*0Sstevel@tonic-gate *c ='\0'; 61*0Sstevel@tonic-gate if (access(path, F_OK) == -1) { 62*0Sstevel@tonic-gate strncpy(path, "/usr/bin", strlen("/usr/bin")); 63*0Sstevel@tonic-gate if (c != NULL) *c = ' '; 64*0Sstevel@tonic-gate s = path; 65*0Sstevel@tonic-gate } 66*0Sstevel@tonic-gate } 67*0Sstevel@tonic-gate else if (strncmp(s, "/bin", strlen("/bin")) == 0 || 68*0Sstevel@tonic-gate strncmp(s, "/usr/bin", strlen("/usr/bin")) == 0) { 69*0Sstevel@tonic-gate /* if /usr/bin is specified, first check if the command 70*0Sstevel@tonic-gate * exists under /usr/bin, otherwise try /usr/ucb */ 71*0Sstevel@tonic-gate if (access(path, F_OK) == -1) { 72*0Sstevel@tonic-gate strcpy(path, "/usr/ucb"); 73*0Sstevel@tonic-gate if (strncmp(s, "/bin", strlen("/bin")) == 0) 74*0Sstevel@tonic-gate strcat(path, strchr(s+1, '/')); 75*0Sstevel@tonic-gate else { 76*0Sstevel@tonic-gate c = strchr(s+1, '/'); 77*0Sstevel@tonic-gate strcat(path, strchr(c+1, '/')); 78*0Sstevel@tonic-gate } 79*0Sstevel@tonic-gate if (c != NULL) *c = ' '; 80*0Sstevel@tonic-gate s = path; 81*0Sstevel@tonic-gate } 82*0Sstevel@tonic-gate } 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate if ((pid = vfork()) == 0) { 85*0Sstevel@tonic-gate (void) execl("/bin/sh", "sh", "-c", s, (char *)0); 86*0Sstevel@tonic-gate _exit(127); 87*0Sstevel@tonic-gate } 88*0Sstevel@tonic-gate if (pid == -1) { 89*0Sstevel@tonic-gate return (-1); 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate istat = signal(SIGINT, SIG_IGN); 92*0Sstevel@tonic-gate qstat = signal(SIGQUIT, SIG_IGN); 93*0Sstevel@tonic-gate w = waitpid(pid, &status, 0); 94*0Sstevel@tonic-gate (void) signal(SIGINT, istat); 95*0Sstevel@tonic-gate (void) signal(SIGQUIT, qstat); 96*0Sstevel@tonic-gate return ((w == -1) ? -1: status); 97*0Sstevel@tonic-gate } 98