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 /* 23 * Copyright 1988 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 #include "uucp.h" 31 32 /* 33 * use shell to execute command with 34 * fi, fo, and fe as standard input/output/error 35 * cmd -> command to execute 36 * fi -> standard input 37 * fo -> standard output 38 * fe -> standard error 39 * return: 40 * 0 -> success 41 * non zero -> failure - status from child 42 (Note - -1 means the fork failed) 43 */ 44 int 45 shio(cmd, fi, fo, fe) 46 char *cmd, *fi, *fo, *fe; 47 { 48 register pid_t pid, ret; 49 int status; 50 51 if (fi == NULL) 52 fi = "/dev/null"; 53 if (fo == NULL) 54 fo = "/dev/null"; 55 if (fe == NULL) 56 fe = "/dev/null"; 57 58 DEBUG(3, "shio - %s\n", cmd); 59 if ((pid = fork()) == 0) { 60 (void) signal(SIGINT, SIG_IGN); 61 (void) signal(SIGHUP, SIG_IGN); 62 (void) signal(SIGQUIT, SIG_IGN); 63 ucloselog(); 64 (void) close(Ifn); /* close connection fd's */ 65 (void) close(Ofn); 66 (void) close(0); /* get stdin from file fi */ 67 if (open(fi, 0) != 0) 68 exit(errno); 69 (void) close(1); /* divert stdout to fo */ 70 if (creat(fo, PUB_FILEMODE) != 1) 71 exit(errno); 72 (void) close(2); /* divert stderr to fe */ 73 if (creat(fe, PUB_FILEMODE) != 2) 74 exit(errno); 75 (void) execle(SHELL, "sh", "-c", cmd, (char *) 0, Env); 76 exit(100); 77 } 78 79 /* 80 * the status returned from wait can never be -1 81 * see man page wait(2) 82 * So we use the -1 value to indicate fork failed 83 * or the wait failed. 84 */ 85 if (pid == -1) 86 return(-1); 87 88 while ((ret = wait(&status)) != pid) 89 if (ret == -1 && errno != EINTR) 90 return(-1); 91 DEBUG(3, "status %d\n", status); 92 return(status); 93 } 94