1 /*- 2 * Copyright (c) 2002 Networks Associates Technology, Inc. 3 * All rights reserved. 4 * 5 * This software was developed for the FreeBSD Project by ThinkSec AS and 6 * NAI Labs, the Security Research Division of Network Associates, Inc. 7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 8 * DARPA CHATS research program. 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 * 3. The name of the author may not be used to endorse or promote 19 * products derived from this software without specific prior written 20 * permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #include <err.h> 38 #include <errno.h> 39 #include <pwd.h> 40 #include <stdlib.h> 41 #include <string.h> 42 43 #include <rpcsvc/ypclnt.h> 44 #include <rpcsvc/yppasswd.h> 45 46 #include "ypclnt.h" 47 48 int 49 ypclnt_passwd(ypclnt_t *ypclnt, const struct passwd *pwd, const char *passwd) 50 { 51 struct yppasswd yppwd; 52 struct rpc_err rpcerr; 53 CLIENT *clnt = NULL; 54 int ret, *result; 55 56 /* check that rpc.yppasswdd is running */ 57 if (getrpcport(ypclnt->server, YPPASSWDPROG, 58 YPPASSWDPROC_UPDATE, IPPROTO_UDP) == 0) { 59 ypclnt_error(ypclnt, __func__, "no rpc.yppasswdd on server"); 60 return (-1); 61 } 62 63 /* fill the yppasswd structure */ 64 memset(&yppwd, 0, sizeof yppwd); 65 yppwd.newpw.pw_uid = pwd->pw_uid; 66 yppwd.newpw.pw_gid = pwd->pw_gid; 67 if ((yppwd.newpw.pw_name = strdup(pwd->pw_name)) == NULL || 68 (yppwd.newpw.pw_passwd = strdup(pwd->pw_passwd)) == NULL || 69 (yppwd.newpw.pw_gecos = strdup(pwd->pw_gecos)) == NULL || 70 (yppwd.newpw.pw_dir = strdup(pwd->pw_dir)) == NULL || 71 (yppwd.newpw.pw_shell = strdup(pwd->pw_shell)) == NULL || 72 (yppwd.oldpass = strdup(passwd)) == NULL) { 73 ypclnt_error(ypclnt, __func__, strerror(errno)); 74 ret = -1; 75 goto done; 76 } 77 78 /* connect to rpc.yppasswdd */ 79 clnt = clnt_create(ypclnt->server, YPPASSWDPROG, YPPASSWDVERS, "udp"); 80 if (clnt == NULL) { 81 ypclnt_error(ypclnt, __func__, 82 "failed to connect to rpc.yppasswdd: %s", 83 clnt_spcreateerror(ypclnt->server)); 84 ret = -1; 85 goto done; 86 } 87 clnt->cl_auth = authunix_create_default(); 88 89 /* request the update */ 90 result = yppasswdproc_update_1(&yppwd, clnt); 91 92 /* check for RPC errors */ 93 clnt_geterr(clnt, &rpcerr); 94 if (rpcerr.re_status != RPC_SUCCESS) { 95 ypclnt_error(ypclnt, __func__, 96 "NIS password update failed: %s", 97 clnt_sperror(clnt, ypclnt->server)); 98 ret = -1; 99 goto done; 100 } 101 102 /* check the result of the update */ 103 if (result == NULL || *result != 0) { 104 ypclnt_error(ypclnt, __func__, 105 "NIS password update failed"); 106 /* XXX how do we get more details? */ 107 ret = -1; 108 goto done; 109 } 110 111 ypclnt_error(ypclnt, NULL, NULL); 112 ret = 0; 113 114 done: 115 if (clnt != NULL) { 116 auth_destroy(clnt->cl_auth); 117 clnt_destroy(clnt); 118 } 119 free(yppwd.newpw.pw_name); 120 free(yppwd.newpw.pw_passwd); 121 free(yppwd.newpw.pw_gecos); 122 free(yppwd.newpw.pw_dir); 123 free(yppwd.newpw.pw_shell); 124 if (yppwd.oldpass != NULL) { 125 memset(yppwd.oldpass, 0, strlen(yppwd.oldpass)); 126 free(yppwd.oldpass); 127 } 128 return (ret); 129 } 130