1 /* $NetBSD: rpc.yppasswdd.c,v 1.1.1.1 1996/08/09 10:19:49 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Mats O Jansson <moj@stacken.kth.se> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mats O Jansson 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 22 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/types.h> 35 #include <sys/wait.h> 36 #include <err.h> 37 #include <limits.h> 38 #include <stdio.h> 39 #include <signal.h> 40 #include <unistd.h> 41 #include <string.h> 42 43 #include <rpc/rpc.h> 44 #include <rpc/pmap_clnt.h> 45 #include <rpcsvc/yppasswd.h> 46 47 extern char *__progname; /* from crt0.s */ 48 49 int noshell, nogecos, nopw, domake; 50 char make_arg[_POSIX2_LINE_MAX] = "make"; 51 52 extern void make_passwd __P((yppasswd *, struct svc_req *, SVCXPRT *)); 53 54 void yppasswddprog_1 __P((struct svc_req *, SVCXPRT *)); 55 void usage __P((void)); 56 57 int 58 main(argc, argv) 59 int argc; 60 char *argv[]; 61 { 62 SVCXPRT *transp; 63 int i; 64 65 for (i = 1; i < argc; i++) { 66 if (argv[i][0] == '-') { 67 if (strcmp("-noshell", argv[i]) == 0) 68 noshell = 1; 69 else if (strcmp("-nogecos", argv[i]) == 0) 70 nogecos = 1; 71 else if (strcmp("-nopw", argv[i]) == 0) 72 nopw = 1; 73 else if (strcmp("-m", argv[i]) == 0) { 74 domake = 1; 75 for (; i < argc; i++) { 76 strcat(make_arg, " "); 77 strcat(make_arg, argv[i]); 78 } 79 } else 80 usage(); 81 } else 82 usage(); 83 } 84 85 if (daemon(0, 0)) 86 err(1, "can't detach"); 87 88 (void) pmap_unset(YPPASSWDPROG, YPPASSWDVERS); 89 90 transp = svcudp_create(RPC_ANYSOCK); 91 if (transp == NULL) 92 errx(1, "cannot create UDP service"); 93 94 if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswddprog_1, 95 IPPROTO_UDP)) 96 errx(1, "unable to register YPPASSWDPROG/YPPASSWDVERS/UDP"); 97 98 transp = svctcp_create(RPC_ANYSOCK, 0, 0); 99 if (transp == NULL) 100 errx(1, "cannot create TCP service"); 101 102 if (!svc_register(transp, YPPASSWDPROG, YPPASSWDVERS, yppasswddprog_1, 103 IPPROTO_TCP)) 104 errx(1, "unable to register YPPASSWDPROG/YPPASSWDVERS/TCP"); 105 106 svc_run(); 107 errx(1, "svc_run returned"); 108 } 109 110 void 111 yppasswddprog_1(rqstp, transp) 112 struct svc_req *rqstp; 113 SVCXPRT *transp; 114 { 115 union { 116 yppasswd yppasswdproc_update_1_arg; 117 } argument; 118 119 switch (rqstp->rq_proc) { 120 case NULLPROC: 121 (void) svc_sendreply(transp, xdr_void, (char *) NULL); 122 return; 123 124 case YPPASSWDPROC_UPDATE: 125 /* 126 * We'd like this to look like a regular RPC 127 * stub, but we have to send the reply in the 128 * handler in order to avoid both signal race 129 * conditions locally and timeouts on the 130 * client. 131 */ 132 (void) memset(&argument, 0, sizeof(argument)); 133 if (!svc_getargs(transp, xdr_yppasswd, (caddr_t) & argument)) { 134 svcerr_decode(transp); 135 return; 136 } 137 make_passwd((yppasswd *)&argument, rqstp, transp); 138 if (!svc_freeargs(transp, xdr_yppasswd, (caddr_t) &argument)) 139 errx(1, "unable to free arguments"); 140 return; 141 } 142 143 svcerr_noproc(transp); 144 } 145 146 void 147 usage() 148 { 149 fprintf(stderr, "%s%s", 150 "usage: rpc.yppasswdd ", 151 "[-noshell] [-nogecos] [-nopw] [-m arg1 arg2 ... ]\n"); 152 exit(1); 153 } 154