1/* $NetBSD: rexec.c,v 1.3 2007/12/15 19:44:46 perry Exp $ */ 2 3/*- 4 * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31#include <sys/cdefs.h> 32__RCSID("$NetBSD: rexec.c,v 1.3 2007/12/15 19:44:46 perry Exp $"); 33 34#include <stdio.h> 35#include <netdb.h> 36#include <stdlib.h> 37#include <unistd.h> 38#include <err.h> 39 40static void usage(void) __dead; 41/*XXX*/ 42int rexec(char **, int, char *, char *, char *, int *); 43 44int 45main(int argc, char **argv) 46{ 47 int c, s; 48 ssize_t nr; 49 struct servent *sv; 50 char *host = __UNCONST("localhost"); 51 char *user = __UNCONST("root"); 52 char *pass = __UNCONST("h@x0R"); 53 char *cmd = __UNCONST("ls"); 54 char line[BUFSIZ]; 55 56 while ((c = getopt(argc, argv, "h:u:p:c:")) != -1) 57 switch (c) { 58 case 'h': 59 host = optarg; 60 break; 61 case 'u': 62 user = optarg; 63 break; 64 case 'p': 65 pass = optarg; 66 break; 67 case 'c': 68 cmd = optarg; 69 break; 70 default: 71 usage(); 72 } 73 74 if ((sv = getservbyname("exec", "tcp")) == NULL) 75 errx(1, "Cannot find service exec/tcp"); 76 77 if ((s = rexec(&host, sv->s_port, user, pass, cmd, NULL)) == -1) 78 return 1; 79 while ((nr = read(s, line, sizeof(line))) > 0) 80 (void)write(STDOUT_FILENO, line, nr); 81 if (nr == -1) 82 err(1, "read failed"); 83 return 0; 84} 85 86static void 87usage(void) 88{ 89 (void)fprintf(stderr, "Usage: %s [-u <user>] [-p <password>]" 90 "[-h <hostname>] [-c <cmd>]\n", getprogname()); 91 exit(1); 92} 93