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 31 #pragma ident "%Z%%M% %I% %E% SMI" 32 33 #include "uucp.h" 34 35 /* 36 * use shell to execute command with 37 * fi, fo, and fe as standard input/output/error 38 * cmd -> command to execute 39 * fi -> standard input 40 * fo -> standard output 41 * fe -> standard error 42 * return: 43 * 0 -> success 44 * non zero -> failure - status from child 45 (Note - -1 means the fork failed) 46 */ 47 int 48 shio(cmd, fi, fo, fe) 49 char *cmd, *fi, *fo, *fe; 50 { 51 register pid_t pid, ret; 52 int status; 53 54 if (fi == NULL) 55 fi = "/dev/null"; 56 if (fo == NULL) 57 fo = "/dev/null"; 58 if (fe == NULL) 59 fe = "/dev/null"; 60 61 DEBUG(3, "shio - %s\n", cmd); 62 if ((pid = fork()) == 0) { 63 (void) signal(SIGINT, SIG_IGN); 64 (void) signal(SIGHUP, SIG_IGN); 65 (void) signal(SIGQUIT, SIG_IGN); 66 ucloselog(); 67 (void) close(Ifn); /* close connection fd's */ 68 (void) close(Ofn); 69 (void) close(0); /* get stdin from file fi */ 70 if (open(fi, 0) != 0) 71 exit(errno); 72 (void) close(1); /* divert stdout to fo */ 73 if (creat(fo, PUB_FILEMODE) != 1) 74 exit(errno); 75 (void) close(2); /* divert stderr to fe */ 76 if (creat(fe, PUB_FILEMODE) != 2) 77 exit(errno); 78 (void) execle(SHELL, "sh", "-c", cmd, (char *) 0, Env); 79 exit(100); 80 } 81 82 /* 83 * the status returned from wait can never be -1 84 * see man page wait(2) 85 * So we use the -1 value to indicate fork failed 86 * or the wait failed. 87 */ 88 if (pid == -1) 89 return(-1); 90 91 while ((ret = wait(&status)) != pid) 92 if (ret == -1 && errno != EINTR) 93 return(-1); 94 DEBUG(3, "status %d\n", status); 95 return(status); 96 } 97