yp_server.c revision 12997
112891Swpaul/* 212891Swpaul * Copyright (c) 1995 312891Swpaul * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 412891Swpaul * 512891Swpaul * Redistribution and use in source and binary forms, with or without 612891Swpaul * modification, are permitted provided that the following conditions 712891Swpaul * are met: 812891Swpaul * 1. Redistributions of source code must retain the above copyright 912891Swpaul * notice, this list of conditions and the following disclaimer. 1012891Swpaul * 2. Redistributions in binary form must reproduce the above copyright 1112891Swpaul * notice, this list of conditions and the following disclaimer in the 1212891Swpaul * documentation and/or other materials provided with the distribution. 1312891Swpaul * 3. All advertising materials mentioning features or use of this software 1412891Swpaul * must display the following acknowledgement: 1512891Swpaul * This product includes software developed by Bill Paul. 1612891Swpaul * 4. Neither the name of the author nor the names of any co-contributors 1712891Swpaul * may be used to endorse or promote products derived from this software 1812891Swpaul * without specific prior written permission. 1912891Swpaul * 2012891Swpaul * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 2112891Swpaul * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2212891Swpaul * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2312891Swpaul * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE 2412891Swpaul * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2512891Swpaul * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2612891Swpaul * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2712891Swpaul * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2812891Swpaul * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2912891Swpaul * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3012891Swpaul * SUCH DAMAGE. 3112891Swpaul * 3212891Swpaul */ 3312891Swpaul 3412891Swpaul#include "yp_extern.h" 3512891Swpaul#include "yp.h" 3612891Swpaul#include <stdlib.h> 3712891Swpaul#include <dirent.h> 3812891Swpaul#include <sys/stat.h> 3912891Swpaul#include <sys/param.h> 4012891Swpaul#include <errno.h> 4112891Swpaul#include <sys/types.h> 4212891Swpaul#include <sys/socket.h> 4312891Swpaul#include <netinet/in.h> 4412891Swpaul#include <arpa/inet.h> 4512997Swpaul#include <rpc/rpc.h> 4612891Swpaul 4712891Swpaul#ifndef lint 4812997Swpaulstatic char rcsid[] = "$Id: yp_server.c,v 1.1.1.1 1995/12/16 20:54:17 wpaul Exp $"; 4912891Swpaul#endif /* not lint */ 5012891Swpaul 5112891Swpaulint forked = 0; 5212891Swpaulint children = 0; 5312891SwpaulDB *spec_dbp = NULL; /* Special global DB handle for ypproc_all. */ 5412891Swpaul 5512891Swpaulvoid * 5612891Swpaulypproc_null_2_svc(void *argp, struct svc_req *rqstp) 5712891Swpaul{ 5812891Swpaul static char * result; 5912891Swpaul static char rval = 0; 6012891Swpaul 6112891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 6212891Swpaul return(NULL); 6312891Swpaul 6412891Swpaul result = &rval; 6512891Swpaul 6612891Swpaul return((void *) &result); 6712891Swpaul} 6812891Swpaul 6912891Swpaulbool_t * 7012891Swpaulypproc_domain_2_svc(domainname *argp, struct svc_req *rqstp) 7112891Swpaul{ 7212891Swpaul static bool_t result; 7312891Swpaul 7412891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 7512891Swpaul result = FALSE; 7612891Swpaul return (&result); 7712891Swpaul } 7812891Swpaul 7912891Swpaul if (argp == NULL || yp_validdomain(*argp)) 8012891Swpaul result = FALSE; 8112891Swpaul else 8212891Swpaul result = TRUE; 8312891Swpaul 8412891Swpaul return (&result); 8512891Swpaul} 8612891Swpaul 8712891Swpaulbool_t * 8812891Swpaulypproc_domain_nonack_2_svc(domainname *argp, struct svc_req *rqstp) 8912891Swpaul{ 9012891Swpaul static bool_t result; 9112891Swpaul 9212891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 9312891Swpaul return (NULL); 9412891Swpaul 9512891Swpaul if (argp == NULL || yp_validdomain(*argp)) 9612891Swpaul return (NULL); 9712891Swpaul else 9812891Swpaul result = TRUE; 9912891Swpaul 10012891Swpaul return (&result); 10112891Swpaul} 10212891Swpaul 10312891Swpaulypresp_val * 10412891Swpaulypproc_match_2_svc(ypreq_key *argp, struct svc_req *rqstp) 10512891Swpaul{ 10612891Swpaul static ypresp_val result; 10712891Swpaul DBT key, data; 10812891Swpaul 10912891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 11012891Swpaul result.stat = YP_YPERR; 11112891Swpaul return (&result); 11212891Swpaul } 11312891Swpaul 11412891Swpaul if (argp->domain == NULL || argp->map == NULL) { 11512891Swpaul result.stat = YP_BADARGS; 11612891Swpaul return (&result); 11712891Swpaul } 11812891Swpaul 11912891Swpaul if (yp_validdomain(argp->domain)) { 12012891Swpaul result.stat = YP_NODOM; 12112891Swpaul return(&result); 12212891Swpaul } 12312891Swpaul 12412891Swpaul key.size = argp->key.keydat_len; 12512891Swpaul key.data = argp->key.keydat_val; 12612891Swpaul 12712891Swpaul result.stat = yp_get_record(argp->domain, argp->map, &key, &data, 0); 12812891Swpaul 12912891Swpaul if (result.stat == YP_TRUE) { 13012891Swpaul result.val.valdat_len = data.size; 13112891Swpaul result.val.valdat_val = data.data; 13212891Swpaul } 13312891Swpaul 13412891Swpaul /* 13512891Swpaul * Do DNS lookups for hosts maps if database lookup failed. 13612891Swpaul */ 13712891Swpaul 13812891Swpaul if (do_dns && result.stat != YP_TRUE && strstr(argp->map, "hosts")) { 13912997Swpaul char *rval = NULL; 14012891Swpaul 14112891Swpaul /* DNS lookups can take time -- do them in a subprocess */ 14212891Swpaul 14312891Swpaul if (!debug && children < MAX_CHILDREN && fork()) { 14412891Swpaul children++; 14512891Swpaul forked = 0; 14612891Swpaul /* 14712891Swpaul * Returning NULL here prevents svc_sendreply() 14812891Swpaul * from being called by the parent. This is vital 14912891Swpaul * since having both the parent and the child process 15012891Swpaul * call it would confuse the client. 15112891Swpaul */ 15212891Swpaul return (NULL); 15312891Swpaul } else { 15412891Swpaul forked++; 15512891Swpaul } 15612891Swpaul 15712891Swpaul if (debug) 15812891Swpaul yp_error("Doing DNS lookup of %.*s", 15912891Swpaul argp->key.keydat_len, 16012891Swpaul argp->key.keydat_val); 16112891Swpaul 16212891Swpaul /* NUL terminate! NUL terminate!! NUL TERMINATE!!! */ 16312891Swpaul argp->key.keydat_val[argp->key.keydat_len] = '\0'; 16412891Swpaul 16512891Swpaul if (!strcmp(argp->map, "hosts.byname")) 16612891Swpaul rval = yp_dnsname((char *)argp->key.keydat_val); 16712891Swpaul else if (!strcmp(argp->map, "hosts.byaddr")) 16812891Swpaul rval = yp_dnsaddr((const char *)argp->key.keydat_val); 16912891Swpaul 17012891Swpaul 17112891Swpaul if (rval) { 17212891Swpaul if (debug) 17312891Swpaul yp_error("DNS lookup successful. Result: %s", rval); 17412891Swpaul result.val.valdat_len = strlen(rval); 17512891Swpaul result.val.valdat_val = rval; 17612891Swpaul result.stat = YP_TRUE; 17712891Swpaul } else { 17812891Swpaul if (debug) 17912891Swpaul yp_error("DNS lookup failed."); 18012891Swpaul result.stat = YP_NOKEY; 18112891Swpaul } 18212891Swpaul } 18312891Swpaul 18412891Swpaul return (&result); 18512891Swpaul} 18612891Swpaul 18712891Swpaulypresp_key_val * 18812891Swpaulypproc_first_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 18912891Swpaul{ 19012891Swpaul static ypresp_key_val result; 19112891Swpaul DBT key, data; 19212891Swpaul DB *dbp; 19312891Swpaul 19412891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 19512891Swpaul result.stat = YP_YPERR; 19612891Swpaul return (&result); 19712891Swpaul } 19812891Swpaul 19912891Swpaul if (argp->domain == NULL) { 20012891Swpaul result.stat = YP_BADARGS; 20112891Swpaul return (&result); 20212891Swpaul } 20312891Swpaul 20412891Swpaul if (yp_validdomain(argp->domain)) { 20512891Swpaul result.stat = YP_NODOM; 20612891Swpaul return(&result); 20712891Swpaul } 20812891Swpaul 20912891Swpaul if ((dbp = yp_open_db(argp->domain, argp->map)) == NULL) { 21012891Swpaul result.stat = yp_errno; 21112891Swpaul return(&result); 21212891Swpaul } 21312891Swpaul 21412891Swpaul key.data = NULL; 21512891Swpaul key.size = 0; 21612891Swpaul result.stat = yp_first_record(dbp, &key, &data); 21712891Swpaul (void)(dbp->close)(dbp); 21812891Swpaul 21912891Swpaul if (result.stat == YP_TRUE) { 22012891Swpaul result.key.keydat_len = key.size; 22112891Swpaul result.key.keydat_val = key.data; 22212891Swpaul result.val.valdat_len = data.size; 22312891Swpaul result.val.valdat_val = data.data; 22412891Swpaul } 22512891Swpaul 22612891Swpaul return (&result); 22712891Swpaul} 22812891Swpaul 22912891Swpaulypresp_key_val * 23012891Swpaulypproc_next_2_svc(ypreq_key *argp, struct svc_req *rqstp) 23112891Swpaul{ 23212891Swpaul static ypresp_key_val result; 23312891Swpaul DBT key, data; 23412891Swpaul DB *dbp; 23512891Swpaul 23612891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 23712891Swpaul result.stat = YP_YPERR; 23812891Swpaul return (&result); 23912891Swpaul } 24012891Swpaul 24112891Swpaul if (argp->domain == NULL || argp->map == NULL) { 24212891Swpaul result.stat = YP_BADARGS; 24312891Swpaul return (&result); 24412891Swpaul } 24512891Swpaul 24612891Swpaul if (yp_validdomain(argp->domain)) { 24712891Swpaul result.stat = YP_NODOM; 24812891Swpaul return(&result); 24912891Swpaul } 25012891Swpaul 25112891Swpaul if ((dbp = yp_open_db(argp->domain, argp->map)) == NULL) { 25212891Swpaul result.stat = yp_errno; 25312891Swpaul return(&result); 25412891Swpaul } 25512891Swpaul 25612891Swpaul key.size = argp->key.keydat_len; 25712891Swpaul key.data = argp->key.keydat_val; 25812891Swpaul 25912891Swpaul result.stat = yp_next_record(dbp, &key, &data, 0); 26012891Swpaul (void)(dbp->close)(dbp); 26112891Swpaul 26212891Swpaul if (result.stat == YP_TRUE) { 26312891Swpaul result.key.keydat_len = key.size; 26412891Swpaul result.key.keydat_val = key.data; 26512891Swpaul result.val.valdat_len = data.size; 26612891Swpaul result.val.valdat_val = data.data; 26712891Swpaul } 26812891Swpaul 26912891Swpaul return (&result); 27012891Swpaul} 27112891Swpaul 27212997Swpaulstatic void ypxfr_callback(rval,addr,transid,prognum,port) 27312997Swpaul ypxfrstat rval; 27412997Swpaul struct sockaddr_in *addr; 27512997Swpaul unsigned int transid; 27612997Swpaul unsigned int prognum; 27712997Swpaul unsigned long port; 27812997Swpaul{ 27912997Swpaul CLIENT *clnt; 28012997Swpaul int sock = RPC_ANYSOCK; 28112997Swpaul struct timeval timeout; 28212997Swpaul yppushresp_xfr ypxfr_resp; 28312997Swpaul 28412997Swpaul timeout.tv_sec = 20; 28512997Swpaul timeout.tv_usec = 0; 28612997Swpaul addr->sin_port = htons(port); 28712997Swpaul 28812997Swpaul if ((clnt = clntudp_create(addr, prognum, 1, timeout, &sock)) == NULL) 28912997Swpaul yp_error("%s", clnt_spcreateerror("failed to establish \ 29012997Swpaulcallback handle")); 29112997Swpaul 29212997Swpaul ypxfr_resp.status = rval; 29312997Swpaul ypxfr_resp.transid = transid; 29412997Swpaul 29512997Swpaul if (yppushproc_xfrresp_1(&ypxfr_resp, clnt) == NULL) 29612997Swpaul yp_error("%s", clnt_sperror(clnt, "ypxfr callback failed")); 29712997Swpaul 29812997Swpaul clnt_destroy(clnt); 29912997Swpaul return; 30012997Swpaul} 30112997Swpaul 30212891Swpaulypresp_xfr * 30312891Swpaulypproc_xfr_2_svc(ypreq_xfr *argp, struct svc_req *rqstp) 30412891Swpaul{ 30512891Swpaul static ypresp_xfr result; 30612997Swpaul struct sockaddr_in *rqhost; 30712891Swpaul 30812891Swpaul if (yp_access(argp->map_parms.map, (struct svc_req *)rqstp)) { 30912891Swpaul result.xfrstat = YPXFR_REFUSED; 31012891Swpaul return(&result); 31112891Swpaul } 31212891Swpaul 31312891Swpaul if (argp->map_parms.domain == NULL) { 31412891Swpaul result.xfrstat = YPXFR_BADARGS; 31512891Swpaul return (&result); 31612891Swpaul } 31712891Swpaul 31812891Swpaul if (yp_validdomain(argp->map_parms.domain)) { 31912891Swpaul result.xfrstat = YPXFR_NODOM; 32012891Swpaul return(&result); 32112891Swpaul } 32212891Swpaul 32312997Swpaul rqhost = svc_getcaller(rqstp->rq_xprt); 32412997Swpaul 32512891Swpaul switch(fork()) { 32612891Swpaul case 0: 32712891Swpaul { 32812891Swpaul char g[11], t[11], p[11]; 32912891Swpaul char ypxfr_command[MAXPATHLEN + 2]; 33012891Swpaul 33112891Swpaul sprintf (ypxfr_command, "%sypxfr", _PATH_LIBEXEC); 33212891Swpaul sprintf (t, "%u", argp->transid); 33312891Swpaul sprintf (g, "%u", argp->prog); 33412891Swpaul sprintf (p, "%u", argp->port); 33512997Swpaul if (debug) 33612997Swpaul close(0); close(1); close(2); 33712997Swpaul if (strcmp(yp_dir, _PATH_YP)) { 33812997Swpaul execl(ypxfr_command, "ypxfr", "-d", argp->map_parms.domain, 33912997Swpaul "-h", argp->map_parms.peer, "-f", "-p", yp_dir, "-C", t, 34012997Swpaul g, inet_ntoa(rqhost->sin_addr), p, argp->map_parms.map, 34112997Swpaul NULL); 34212997Swpaul } else { 34312997Swpaul execl(ypxfr_command, "ypxfr", "-d", argp->map_parms.domain, 34412997Swpaul "-h", argp->map_parms.peer, "-f", "-C", t, g, 34512997Swpaul inet_ntoa(rqhost->sin_addr), p, argp->map_parms.map, 34612997Swpaul NULL); 34712997Swpaul } 34812997Swpaul forked++; 34912891Swpaul yp_error("ypxfr execl(): %s", strerror(errno)); 35012997Swpaul ypxfr_callback(YPXFR_XFRERR,rqhost,argp->transid, 35112997Swpaul argp->prog,argp->port); 35212997Swpaul result.xfrstat = YPXFR_XFRERR; 35312997Swpaul return(&result); 35412997Swpaul break; 35512891Swpaul } 35612891Swpaul case -1: 35712891Swpaul yp_error("ypxfr fork(): %s", strerror(errno)); 35812997Swpaul ypxfr_callback(YPXFR_XFRERR,rqhost,argp->transid, 35912997Swpaul argp->prog,argp->port); 36012891Swpaul result.xfrstat = YPXFR_XFRERR; 36112997Swpaul return(&result); 36212891Swpaul break; 36312891Swpaul default: 36412997Swpaul children++; 36512997Swpaul forked = 0; 36612891Swpaul break; 36712891Swpaul } 36812997Swpaul /* Don't return anything -- it's up to ypxfr to do that. */ 36912997Swpaul return (NULL); 37012891Swpaul} 37112891Swpaul 37212891Swpaulvoid * 37312891Swpaulypproc_clear_2_svc(void *argp, struct svc_req *rqstp) 37412891Swpaul{ 37512891Swpaul static char * result; 37612891Swpaul static char rval = 0; 37712891Swpaul 37812891Swpaul /* 37912891Swpaul * We don't have to do anything for ypproc_clear. Unlike 38012891Swpaul * the SunOS ypserv, we don't hold out database descriptors 38112891Swpaul * open forever. 38212891Swpaul */ 38312891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) 38412891Swpaul return (NULL); 38512891Swpaul 38612891Swpaul result = &rval; 38712891Swpaul return((void *) &result); 38812891Swpaul} 38912891Swpaul 39012891Swpaul/* 39112891Swpaul * For ypproc_all, we have to send a stream of ypresp_all structures 39212891Swpaul * via TCP, but the XDR filter generated from the yp.x protocol 39312891Swpaul * definition file only serializes one such structure. This means that 39412891Swpaul * to send the whole stream, you need a wrapper which feeds all the 39512891Swpaul * records into the underlying XDR routine until it hits an 'EOF.' 39612891Swpaul * But to use the wrapper, you have to violate the boundaries between 39712891Swpaul * RPC layers by calling svc_sendreply() directly from the ypproc_all 39812891Swpaul * service routine instead of letting the RPC dispatcher do it. 39912891Swpaul * 40012891Swpaul * Bleah. 40112891Swpaul */ 40212891Swpaul 40312891Swpaul/* 40412891Swpaul * Custom XDR routine for serialzing results of ypproc_all: keep 40512891Swpaul * reading from the database and spew until we run out of records 40612891Swpaul * or encounter an error. 40712891Swpaul */ 40812891Swpaulstatic bool_t 40912891Swpaulxdr_my_ypresp_all(register XDR *xdrs, ypresp_all *objp) 41012891Swpaul{ 41112891Swpaul DBT key, data; 41212891Swpaul 41312891Swpaul while (1) { 41412891Swpaul /* Get a record. */ 41512891Swpaul key.size = objp->ypresp_all_u.val.key.keydat_len; 41612891Swpaul key.data = objp->ypresp_all_u.val.key.keydat_val; 41712891Swpaul 41812891Swpaul if ((objp->ypresp_all_u.val.stat = 41912891Swpaul yp_next_record(spec_dbp,&key,&data,1)) == YP_TRUE) { 42012891Swpaul objp->ypresp_all_u.val.val.valdat_len = data.size; 42112891Swpaul objp->ypresp_all_u.val.val.valdat_val = data.data; 42212891Swpaul objp->ypresp_all_u.val.key.keydat_len = key.size; 42312891Swpaul objp->ypresp_all_u.val.key.keydat_val = key.data; 42412891Swpaul objp->more = TRUE; 42512891Swpaul } else { 42612891Swpaul objp->more = FALSE; 42712891Swpaul } 42812891Swpaul 42912891Swpaul /* Serialize. */ 43012891Swpaul if (!xdr_ypresp_all(xdrs, objp)) 43112891Swpaul return(FALSE); 43212891Swpaul if (objp->more == FALSE) 43312891Swpaul return(TRUE); 43412891Swpaul } 43512891Swpaul} 43612891Swpaul 43712891Swpaulypresp_all * 43812891Swpaulypproc_all_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 43912891Swpaul{ 44012891Swpaul static ypresp_all result; 44112891Swpaul 44212891Swpaul /* 44312891Swpaul * Set this here so that the client will be forced to make 44412891Swpaul * at least one attempt to read from us even if all we're 44512891Swpaul * doing is returning an error. 44612891Swpaul */ 44712891Swpaul result.more = TRUE; 44812891Swpaul 44912891Swpaul if (yp_access(argp->map, (struct svc_req *)rqstp)) { 45012891Swpaul result.ypresp_all_u.val.stat = YP_YPERR; 45112891Swpaul return (&result); 45212891Swpaul } 45312891Swpaul 45412891Swpaul if (argp->domain == NULL || argp->map == NULL) { 45512891Swpaul result.ypresp_all_u.val.stat = YP_BADARGS; 45612891Swpaul return (&result); 45712891Swpaul } 45812891Swpaul 45912891Swpaul if (yp_validdomain(argp->domain)) { 46012891Swpaul result.ypresp_all_u.val.stat = YP_NODOM; 46112891Swpaul return(&result); 46212891Swpaul } 46312891Swpaul 46412891Swpaul /* 46512891Swpaul * The ypproc_all procedure can take a while to complete. 46612891Swpaul * Best to handle it in a subprocess so the parent doesn't 46712891Swpaul * block. We fork() here so we don't end up sharing a 46812891Swpaul * DB file handle with the parent. 46912891Swpaul */ 47012891Swpaul 47112891Swpaul if (!debug && children < MAX_CHILDREN && fork()) { 47212891Swpaul children++; 47312891Swpaul forked = 0; 47412891Swpaul return (NULL); 47512891Swpaul } else { 47612891Swpaul forked++; 47712891Swpaul } 47812891Swpaul 47912891Swpaul if ((spec_dbp = yp_open_db(argp->domain, argp->map)) == NULL) { 48012891Swpaul result.ypresp_all_u.val.stat = yp_errno; 48112891Swpaul return(&result); 48212891Swpaul } 48312891Swpaul 48412891Swpaul /* Kick off the actual data transfer. */ 48512891Swpaul svc_sendreply(rqstp->rq_xprt, xdr_my_ypresp_all, (char *)&result); 48612891Swpaul 48712891Swpaul /* Close database when done. */ 48812891Swpaul (void)(spec_dbp->close)(spec_dbp); 48912891Swpaul 49012891Swpaul /* 49112891Swpaul * Returning NULL prevents the dispatcher from calling 49212891Swpaul * svc_sendreply() since we already did it. 49312891Swpaul */ 49412891Swpaul return (NULL); 49512891Swpaul} 49612891Swpaul 49712891Swpaulypresp_master * 49812891Swpaulypproc_master_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 49912891Swpaul{ 50012891Swpaul static ypresp_master result; 50112891Swpaul DBT key,data; 50212891Swpaul 50312891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 50412891Swpaul result.stat = YP_YPERR; 50512891Swpaul return(&result); 50612891Swpaul } 50712891Swpaul 50812891Swpaul if (argp->domain == NULL) { 50912891Swpaul result.stat = YP_BADARGS; 51012891Swpaul return (&result); 51112891Swpaul } 51212891Swpaul 51312891Swpaul if (yp_validdomain(argp->domain)) { 51412891Swpaul result.stat = YP_NODOM; 51512891Swpaul return (&result); 51612891Swpaul } 51712891Swpaul 51812891Swpaul key.data = "YP_MASTER_NAME"; 51912891Swpaul key.size = sizeof("YP_MASTER_NAME") - 1; 52012891Swpaul 52112891Swpaul result.stat = yp_get_record(argp->domain, argp->map, &key, &data, 1); 52212891Swpaul 52312891Swpaul if (result.stat == YP_TRUE) { 52412891Swpaul result.peer = (char *)data.data; 52512891Swpaul result.peer[data.size] = '\0'; 52612891Swpaul } else 52712891Swpaul result.peer = ""; 52812891Swpaul 52912891Swpaul return (&result); 53012891Swpaul} 53112891Swpaul 53212891Swpaulypresp_order * 53312891Swpaulypproc_order_2_svc(ypreq_nokey *argp, struct svc_req *rqstp) 53412891Swpaul{ 53512891Swpaul static ypresp_order result; 53612891Swpaul DBT key,data; 53712891Swpaul 53812891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 53912891Swpaul result.stat = YP_YPERR; 54012891Swpaul return(&result); 54112891Swpaul } 54212891Swpaul 54312891Swpaul if (argp->domain == NULL) { 54412891Swpaul result.stat = YP_BADARGS; 54512891Swpaul return (&result); 54612891Swpaul } 54712891Swpaul 54812891Swpaul if (yp_validdomain(argp->domain)) { 54912891Swpaul result.stat = YP_NODOM; 55012891Swpaul return (&result); 55112891Swpaul } 55212891Swpaul 55312891Swpaul /* 55412891Swpaul * We could just check the timestamp on the map file, 55512891Swpaul * but that's a hack: we'll only know the last time the file 55612891Swpaul * was touched, not the last time the database contents were 55712891Swpaul * updated. 55812891Swpaul */ 55912891Swpaul key.data = "YP_LAST_MODIFIED"; 56012891Swpaul key.size = sizeof("YP_LAST_MODIFIED") - 1; 56112891Swpaul 56212891Swpaul result.stat = yp_get_record(argp->domain, argp->map, &key, &data, 1); 56312891Swpaul 56412891Swpaul if (result.stat == YP_TRUE) 56512891Swpaul result.ordernum = atoi((char *)data.data); 56612891Swpaul else 56712891Swpaul result.ordernum = 0; 56812891Swpaul 56912891Swpaul return (&result); 57012891Swpaul} 57112891Swpaul 57212891Swpaulstatic void yp_maplist_free(yp_maplist) 57312891Swpaul struct ypmaplist *yp_maplist; 57412891Swpaul{ 57512891Swpaul register struct ypmaplist *next; 57612891Swpaul 57712891Swpaul while(yp_maplist) { 57812891Swpaul next = yp_maplist->next; 57912891Swpaul free(yp_maplist->map); 58012891Swpaul free(yp_maplist); 58112891Swpaul yp_maplist = next; 58212891Swpaul } 58312891Swpaul return; 58412891Swpaul} 58512891Swpaul 58612891Swpaulstatic struct ypmaplist *yp_maplist_create(domain) 58712891Swpaul const char *domain; 58812891Swpaul{ 58912891Swpaul char yp_mapdir[MAXPATHLEN + 2]; 59012891Swpaul char yp_mapname[MAXPATHLEN + 2]; 59112891Swpaul struct ypmaplist *cur = NULL; 59212891Swpaul struct ypmaplist *yp_maplist = NULL; 59312891Swpaul DIR *dird; 59412891Swpaul struct dirent *dirp; 59512891Swpaul struct stat statbuf; 59612891Swpaul 59712891Swpaul snprintf(yp_mapdir, sizeof(yp_mapdir), "%s/%s", yp_dir, domain); 59812891Swpaul 59912891Swpaul if ((dird = opendir(yp_mapdir)) == NULL) { 60012891Swpaul yp_error("opendir(%s) failed: %s", strerror(errno)); 60112891Swpaul return(NULL); 60212891Swpaul } 60312891Swpaul 60412891Swpaul while ((dirp = readdir(dird)) != NULL) { 60512891Swpaul if (strcmp(dirp->d_name, ".") && strcmp(dirp->d_name, "..")) { 60612891Swpaul snprintf(yp_mapname, sizeof(yp_mapname), "%s/%s",yp_mapdir,dirp->d_name); 60712891Swpaul if (stat(yp_mapname, &statbuf) < 0 || !S_ISREG(statbuf.st_mode)) 60812891Swpaul continue; 60912891Swpaul if ((cur = (struct ypmaplist *)malloc(sizeof(struct ypmaplist))) < 0) { 61012891Swpaul yp_error("malloc() failed: %s", strerror(errno)); 61112891Swpaul closedir(dird); 61212891Swpaul yp_maplist_free(yp_maplist); 61312891Swpaul return(NULL); 61412891Swpaul } 61512891Swpaul if ((cur->map = (char *)strdup(dirp->d_name)) == NULL) { 61612891Swpaul yp_error("strdup() failed: %s", strerror(errno)); 61712891Swpaul closedir(dird); 61812891Swpaul yp_maplist_free(yp_maplist); 61912891Swpaul return(NULL); 62012891Swpaul } 62112891Swpaul cur->next = yp_maplist; 62212891Swpaul yp_maplist = cur; 62312891Swpaul if (debug) 62412891Swpaul yp_error("map: %s", yp_maplist->map); 62512891Swpaul } 62612891Swpaul 62712891Swpaul } 62812891Swpaul closedir(dird); 62912891Swpaul return(yp_maplist); 63012891Swpaul} 63112891Swpaul 63212891Swpaulypresp_maplist * 63312891Swpaulypproc_maplist_2_svc(domainname *argp, struct svc_req *rqstp) 63412891Swpaul{ 63512891Swpaul static ypresp_maplist result; 63612891Swpaul 63712891Swpaul if (yp_access(NULL, (struct svc_req *)rqstp)) { 63812891Swpaul result.stat = YP_YPERR; 63912891Swpaul return(&result); 64012891Swpaul } 64112891Swpaul 64212891Swpaul if (argp == NULL) { 64312891Swpaul result.stat = YP_BADARGS; 64412891Swpaul return (&result); 64512891Swpaul } 64612891Swpaul 64712891Swpaul if (yp_validdomain(*argp)) { 64812891Swpaul result.stat = YP_NODOM; 64912891Swpaul return (&result); 65012891Swpaul } 65112891Swpaul 65212891Swpaul /* 65312891Swpaul * We have to construct a linked list for the ypproc_maplist 65412891Swpaul * procedure using dynamically allocated memory. Since the XDR 65512891Swpaul * layer won't free this list for us, we have to deal with it 65612891Swpaul * ourselves. We call yp_maplist_free() first to free any 65712891Swpaul * previously allocated data we may have accumulated to insure 65812891Swpaul * that we have only one linked list in memory at any given 65912891Swpaul * time. 66012891Swpaul */ 66112891Swpaul 66212891Swpaul yp_maplist_free(result.maps); 66312891Swpaul 66412891Swpaul if ((result.maps = yp_maplist_create(*argp)) == NULL) { 66512891Swpaul yp_error("yp_maplist_create failed"); 66612891Swpaul result.stat = YP_YPERR; 66712891Swpaul return(&result); 66812891Swpaul } else 66912891Swpaul result.stat = YP_TRUE; 67012891Swpaul 67112891Swpaul return (&result); 67212891Swpaul} 673