9da7bdde06
The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Initially, only tag files that use BSD 4-Clause "Original" license. RelNotes: yes Differential Revision: https://reviews.freebsd.org/D13133
296 lines
7.7 KiB
C
296 lines
7.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-4-Clause
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*
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* Copyright (c) 1995
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* Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <rpc/rpc.h>
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#include <rpcsvc/yp.h>
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#include <rpcsvc/ypclnt.h>
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#include "ypxfr_extern.h"
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const char *
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ypxfrerr_string(ypxfrstat code)
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{
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switch (code) {
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case YPXFR_SUCC:
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return ("Map successfully transferred");
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break;
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case YPXFR_AGE:
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return ("Master's version not newer");
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break;
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case YPXFR_NOMAP:
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return ("No such map in server's domain");
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break;
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case YPXFR_NODOM:
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return ("Domain not supported by server");
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break;
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case YPXFR_RSRC:
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return ("Local resource allocation failure");
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break;
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case YPXFR_RPC:
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return ("RPC failure talking to server");
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break;
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case YPXFR_MADDR:
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return ("Could not get master server address");
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break;
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case YPXFR_YPERR:
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return ("NIS server/map database error");
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break;
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case YPXFR_BADARGS:
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return ("Request arguments bad");
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break;
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case YPXFR_DBM:
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return ("Local database operation failed");
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break;
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case YPXFR_FILE:
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return ("Local file I/O operation failed");
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break;
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case YPXFR_SKEW:
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return ("Map version skew during transfer");
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break;
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case YPXFR_CLEAR:
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return ("Couldn't send \"clear\" request to local ypserv");
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break;
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case YPXFR_FORCE:
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return ("No local order number in map -- use -f flag");
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break;
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case YPXFR_XFRERR:
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return ("General ypxfr error");
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break;
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case YPXFR_REFUSED:
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return ("Transfer request refused by ypserv");
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break;
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default:
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return ("Unknown error code");
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break;
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}
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}
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/*
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* These are wrappers for the usual yp_master() and yp_order() functions.
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* They can use either local yplib functions (the real yp_master() and
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* yp_order()) or do direct RPCs to a specified server. The latter is
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* necessary if ypxfr is run on a machine that isn't configured as an
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* NIS client (this can happen very easily: a given machine need not be
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* an NIS client in order to be an NIS server).
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*/
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/*
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* Careful: yp_master() returns a pointer to a dynamically allocated
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* buffer. Calling ypproc_master_2() ourselves also returns a pointer
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* to dynamically allocated memory, though this time it's memory
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* allocated by the XDR routines. We have to rememver to free() or
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* xdr_free() the memory as required to avoid leaking memory.
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*/
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char *
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ypxfr_get_master(char *domain, char *map, char *source, const int yplib)
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{
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static char mastername[MAXPATHLEN + 2];
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bzero((char *)&mastername, sizeof(mastername));
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if (yplib) {
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int res;
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char *master;
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if ((res = yp_master(domain, map, &master))) {
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switch (res) {
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case YPERR_DOMAIN:
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yp_errno = (enum ypstat)YPXFR_NODOM;
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break;
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case YPERR_MAP:
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yp_errno = (enum ypstat)YPXFR_NOMAP;
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break;
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case YPERR_YPERR:
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default:
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yp_errno = (enum ypstat)YPXFR_YPERR;
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break;
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}
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return(NULL);
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} else {
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snprintf(mastername, sizeof(mastername), "%s", master);
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free(master);
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return((char *)&mastername);
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}
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} else {
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CLIENT *clnt;
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ypresp_master *resp;
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ypreq_nokey req;
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if ((clnt = clnt_create(source,YPPROG,YPVERS,"udp")) == NULL) {
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yp_error("%s",clnt_spcreateerror("failed to \
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create udp handle to ypserv"));
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yp_errno = (enum ypstat)YPXFR_RPC;
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return(NULL);
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}
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req.map = map;
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req.domain = domain;
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if ((resp = ypproc_master_2(&req, clnt)) == NULL) {
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yp_error("%s",clnt_sperror(clnt,"YPPROC_MASTER \
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failed"));
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clnt_destroy(clnt);
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yp_errno = (enum ypstat)YPXFR_RPC;
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return(NULL);
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}
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clnt_destroy(clnt);
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if (resp->stat != YP_TRUE) {
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switch (resp->stat) {
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case YP_NODOM:
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yp_errno = (enum ypstat)YPXFR_NODOM;
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break;
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case YP_NOMAP:
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yp_errno = (enum ypstat)YPXFR_NOMAP;
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break;
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case YP_YPERR:
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default:
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yp_errno = (enum ypstat)YPXFR_YPERR;
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break;
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}
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return(NULL);
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}
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snprintf(mastername, sizeof(mastername), "%s", resp->peer);
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/* xdr_free(xdr_ypresp_master, (char *)&resp); */
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return((char *)&mastername);
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}
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}
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unsigned long
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ypxfr_get_order(char *domain, char *map, char *source, const int yplib)
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{
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if (yplib) {
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unsigned int order;
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int res;
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if ((res = yp_order(domain, map, &order))) {
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switch (res) {
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case YPERR_DOMAIN:
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yp_errno = (enum ypstat)YPXFR_NODOM;
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break;
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case YPERR_MAP:
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yp_errno = (enum ypstat)YPXFR_NOMAP;
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break;
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case YPERR_YPERR:
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default:
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yp_errno = (enum ypstat)YPXFR_YPERR;
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break;
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}
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return(0);
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} else
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return(order);
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} else {
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CLIENT *clnt;
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ypresp_order *resp;
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ypreq_nokey req;
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if ((clnt = clnt_create(source,YPPROG,YPVERS,"udp")) == NULL) {
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yp_error("%s",clnt_spcreateerror("couldn't create \
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udp handle to ypserv"));
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yp_errno = (enum ypstat)YPXFR_RPC;
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return(0);
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}
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req.map = map;
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req.domain = domain;
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if ((resp = ypproc_order_2(&req, clnt)) == NULL) {
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yp_error("%s", clnt_sperror(clnt, "YPPROC_ORDER \
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failed"));
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clnt_destroy(clnt);
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yp_errno = (enum ypstat)YPXFR_RPC;
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return(0);
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}
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clnt_destroy(clnt);
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if (resp->stat != YP_TRUE) {
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switch (resp->stat) {
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case YP_NODOM:
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yp_errno = (enum ypstat)YPXFR_NODOM;
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break;
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case YP_NOMAP:
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yp_errno = (enum ypstat)YPXFR_NOMAP;
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break;
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case YP_YPERR:
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default:
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yp_errno = (enum ypstat)YPXFR_YPERR;
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break;
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}
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return(0);
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}
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return(resp->ordernum);
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}
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}
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int
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ypxfr_match(char *server, char *domain, char *map, char *key,
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unsigned long keylen)
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{
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ypreq_key ypkey;
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ypresp_val *ypval;
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CLIENT *clnt;
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static char buf[YPMAXRECORD + 2];
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bzero(buf, sizeof(buf));
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if ((clnt = clnt_create(server, YPPROG,YPVERS,"udp")) == NULL) {
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yp_error("failed to create UDP handle: %s",
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clnt_spcreateerror(server));
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return(0);
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}
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ypkey.domain = domain;
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ypkey.map = map;
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ypkey.key.keydat_len = keylen;
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ypkey.key.keydat_val = key;
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if ((ypval = ypproc_match_2(&ypkey, clnt)) == NULL) {
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clnt_destroy(clnt);
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yp_error("%s: %s", server,
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clnt_sperror(clnt,"YPPROC_MATCH failed"));
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return(0);
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}
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clnt_destroy(clnt);
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if (ypval->stat != YP_TRUE) {
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xdr_free((xdrproc_t)xdr_ypresp_val, ypval);
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return(0);
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}
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xdr_free((xdrproc_t)xdr_ypresp_val, ypval);
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return(1);
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}
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