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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * These routines are based on the standard UNIX stdio popen/pclose 32 * routines. This version takes an argv[][] argument instead of a string 33 * to be passed to the shell. The routine execvp() is used to call the 34 * program, hence the name popenvp() and the argument types. 35 * 36 * This routine avoids an extra shell completely, along with not having 37 * to worry about quoting conventions in strings that have spaces, 38 * quotes, etc. 39 */ 40 41 #pragma ident "%Z%%M% %I% %E% SMI" 42 43 #include <sys/types.h> 44 #include "libmail.h" 45 #include <signal.h> 46 #include <unistd.h> 47 #include <wait.h> 48 49 pid_t 50 systemvp(char *file, char **argv, int resetid) 51 { 52 int status; 53 pid_t pid, w; 54 void (*istat)(int), (*qstat)(int); 55 56 if ((pid = fork()) == 0) { 57 if (resetid) { 58 (void) setgid(getgid()); 59 (void) setuid(getuid()); 60 } 61 (void) execvp(file, argv); 62 _exit(127); 63 } 64 istat = signal(SIGINT, SIG_IGN); 65 qstat = signal(SIGQUIT, SIG_IGN); 66 do { 67 w = wait(&status); 68 } while (w != pid && w != (pid_t)-1); 69 (void) signal(SIGINT, istat); 70 (void) signal(SIGQUIT, qstat); 71 return ((w == (pid_t)-1)? w: (pid_t)status); 72 } 73