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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1999, by Sun Microsystems, Inc. 28 * All rights reserved. 29 */ 30 31 /* 32 * These routines are based on the standard UNIX stdio popen/pclose 33 * routines. This version takes an argv[][] argument instead of a string 34 * to be passed to the shell. The routine execvp() is used to call the 35 * program, hence the name popenvp() and the argument types. 36 * 37 * This routine avoids an extra shell completely, along with not having 38 * to worry about quoting conventions in strings that have spaces, 39 * quotes, etc. 40 */ 41 42 #pragma ident "%Z%%M% %I% %E% SMI" 43 /*LINTLIBRARY*/ 44 45 #include "synonyms.h" 46 #include <sys/types.h> 47 #include "libmail.h" 48 #include <signal.h> 49 #include <unistd.h> 50 #include <wait.h> 51 52 pid_t 53 systemvp(char *file, char **argv, int resetid) 54 { 55 int status; 56 pid_t pid, w; 57 void (*istat)(int), (*qstat)(int); 58 59 if ((pid = fork()) == 0) { 60 if (resetid) { 61 (void) setgid(getgid()); 62 (void) setuid(getuid()); 63 } 64 (void) execvp(file, argv); 65 _exit(127); 66 } 67 istat = signal(SIGINT, SIG_IGN); 68 qstat = signal(SIGQUIT, SIG_IGN); 69 do 70 w = wait(&status); 71 while (w != pid && w != (pid_t)-1); 72 (void) signal(SIGINT, istat); 73 (void) signal(SIGQUIT, qstat); 74 return ((w == (pid_t)-1)? w: (pid_t)status); 75 } 76