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https://github.com/freebsd/freebsd-src
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9fa75c1550
for NULL RPC client handles. This should hopefully fix the problems Satoshi reported on -current. - Add socket descriptor sanity checks to _yp_unbind(). - Fix yp_order() so that it handles the RPC_PROCUNAVAIL error gracefully. NIS+ in YP compat mode doesn't support the YPPROC_ORDER procedure. This is a 2.2 candidate with bells on.
1029 lines
23 KiB
C
1029 lines
23 KiB
C
/*
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* Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
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* 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. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* 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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#ifndef LINT
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static char *rcsid = "$Id: yplib.c,v 1.7 1996/11/08 01:10:35 wpaul Exp $";
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#endif
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/file.h>
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#include <sys/uio.h>
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#include <errno.h>
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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 <rpc/rpc.h>
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#include <rpc/xdr.h>
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#include <rpcsvc/yp.h>
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/*
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* We have to define these here due to clashes between yp_prot.h and
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* yp.h.
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*/
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struct dom_binding {
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struct dom_binding *dom_pnext;
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char dom_domain[YPMAXDOMAIN + 1];
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struct sockaddr_in dom_server_addr;
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u_short dom_server_port;
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int dom_socket;
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CLIENT *dom_client;
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u_short dom_local_port; /* now I finally know what this is for. */
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long dom_vers;
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};
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#include <rpcsvc/ypclnt.h>
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#ifndef BINDINGDIR
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#define BINDINGDIR "/var/yp/binding"
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#endif
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#define YPMATCHCACHE
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#define MAX_RETRIES 20
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extern bool_t xdr_domainname(), xdr_ypbind_resp();
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extern bool_t xdr_ypreq_key(), xdr_ypresp_val();
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extern bool_t xdr_ypreq_nokey(), xdr_ypresp_key_val();
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extern bool_t xdr_ypresp_all(), xdr_ypresp_all_seq();
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extern bool_t xdr_ypresp_master();
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int (*ypresp_allfn)();
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void *ypresp_data;
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struct dom_binding *_ypbindlist;
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static char _yp_domain[MAXHOSTNAMELEN];
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int _yplib_timeout = 10;
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#ifdef YPMATCHCACHE
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int _yplib_cache = 5;
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static struct ypmatch_ent {
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struct ypmatch_ent *next;
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char *map, *key, *val;
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int keylen, vallen;
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time_t expire_t;
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} *ypmc;
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static void
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ypmatch_add(map, key, keylen, val, vallen)
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char *map;
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char *key;
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int keylen;
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char *val;
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int vallen;
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{
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struct ypmatch_ent *ep;
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time_t t;
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time(&t);
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for(ep=ypmc; ep; ep=ep->next)
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if(ep->expire_t < t)
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break;
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if(ep==NULL) {
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ep = (struct ypmatch_ent *)malloc(sizeof *ep);
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bzero((char *)ep, sizeof *ep);
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if(ypmc)
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ep->next = ypmc;
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ypmc = ep;
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}
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if(ep->key)
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free(ep->key);
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if(ep->val)
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free(ep->val);
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ep->key = NULL;
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ep->val = NULL;
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ep->key = (char *)malloc(keylen);
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if(ep->key==NULL)
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return;
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ep->val = (char *)malloc(vallen);
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if(ep->key==NULL) {
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free(ep->key);
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ep->key = NULL;
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return;
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}
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ep->keylen = keylen;
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ep->vallen = vallen;
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bcopy(key, ep->key, ep->keylen);
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bcopy(val, ep->val, ep->vallen);
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if(ep->map) {
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if( strcmp(ep->map, map) ) {
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free(ep->map);
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ep->map = strdup(map);
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}
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} else {
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ep->map = strdup(map);
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}
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ep->expire_t = t + _yplib_cache;
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}
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static bool_t
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ypmatch_find(map, key, keylen, val, vallen)
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char *map;
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char *key;
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int keylen;
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char **val;
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int *vallen;
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{
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struct ypmatch_ent *ep;
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time_t t;
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if(ypmc==NULL)
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return 0;
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time(&t);
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for(ep=ypmc; ep; ep=ep->next) {
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if(ep->keylen != keylen)
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continue;
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if(strcmp(ep->map, map))
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continue;
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if(bcmp(ep->key, key, keylen))
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continue;
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if(t > ep->expire_t)
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continue;
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*val = ep->val;
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*vallen = ep->vallen;
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return 1;
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}
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return 0;
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}
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#endif
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char *
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ypbinderr_string(incode)
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int incode;
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{
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static char err[80];
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switch(incode) {
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case 0:
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return "Success";
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case YPBIND_ERR_ERR:
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return "Internal ypbind error";
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case YPBIND_ERR_NOSERV:
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return "Domain not bound";
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case YPBIND_ERR_RESC:
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return "System resource allocation failure";
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}
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sprintf(err, "Unknown ypbind error: #%d\n", incode);
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return err;
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}
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int
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_yp_dobind(dom, ypdb)
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char *dom;
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struct dom_binding **ypdb;
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{
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static pid_t pid = -1;
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char path[MAXPATHLEN];
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struct dom_binding *ysd, *ysd2;
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struct ypbind_resp ypbr;
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struct timeval tv;
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struct sockaddr_in clnt_sin;
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int clnt_sock, fd;
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pid_t gpid;
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CLIENT *client;
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int new = 0, r;
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int retries = 0;
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struct sockaddr_in check;
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int checklen = sizeof(struct sockaddr_in);
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gpid = getpid();
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if( !(pid==-1 || pid==gpid) ) {
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ysd = _ypbindlist;
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while(ysd) {
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if(ysd->dom_client != NULL)
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clnt_destroy(ysd->dom_client);
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ysd2 = ysd->dom_pnext;
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free(ysd);
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ysd = ysd2;
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}
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_ypbindlist = NULL;
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}
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pid = gpid;
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if(ypdb!=NULL)
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*ypdb = NULL;
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if(dom==NULL || strlen(dom)==0)
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return YPERR_BADARGS;
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for(ysd = _ypbindlist; ysd; ysd = ysd->dom_pnext)
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if( strcmp(dom, ysd->dom_domain) == 0)
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break;
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if(ysd==NULL) {
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ysd = (struct dom_binding *)malloc(sizeof *ysd);
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bzero((char *)ysd, sizeof *ysd);
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ysd->dom_socket = -1;
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ysd->dom_vers = 0;
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new = 1;
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} else {
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/* Check the socket -- may have been hosed by the caller. */
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if (getsockname(ysd->dom_socket, (struct sockaddr *)&check,
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&checklen) == -1 || check.sin_family != AF_INET ||
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check.sin_port != ysd->dom_local_port) {
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/* Socket became bogus somehow... need to rebind. */
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int save, sock;
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sock = ysd->dom_socket;
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save = dup(ysd->dom_socket);
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if (ysd->dom_client != NULL)
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clnt_destroy(ysd->dom_client);
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ysd->dom_vers = 0;
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ysd->dom_client = NULL;
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sock = dup2(save, sock);
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close(save);
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}
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}
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again:
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retries++;
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if (retries > MAX_RETRIES) {
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if (new)
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free(ysd);
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return(YPERR_YPBIND);
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}
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#ifdef BINDINGDIR
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if(ysd->dom_vers==0) {
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/*
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* We're trying to make a new binding: zorch the
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* existing handle now (if any).
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*/
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if(ysd->dom_client != NULL) {
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clnt_destroy(ysd->dom_client);
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ysd->dom_client = NULL;
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ysd->dom_socket = -1;
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}
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sprintf(path, "%s/%s.%d", BINDINGDIR, dom, 2);
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if( (fd=open(path, O_RDONLY)) == -1) {
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/* no binding file, YP is dead. */
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/* Try to bring it back to life. */
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close(fd);
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goto skipit;
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}
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if( flock(fd, LOCK_EX|LOCK_NB) == -1 && errno==EWOULDBLOCK) {
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struct iovec iov[2];
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struct ypbind_resp ybr;
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u_short ypb_port;
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iov[0].iov_base = (caddr_t)&ypb_port;
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iov[0].iov_len = sizeof ypb_port;
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iov[1].iov_base = (caddr_t)&ybr;
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iov[1].iov_len = sizeof ybr;
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r = readv(fd, iov, 2);
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if(r != iov[0].iov_len + iov[1].iov_len) {
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close(fd);
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ysd->dom_vers = -1;
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goto again;
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}
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bzero(&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
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ysd->dom_server_addr.sin_family = AF_INET;
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ysd->dom_server_addr.sin_len = sizeof(struct sockaddr_in);
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ysd->dom_server_addr.sin_addr.s_addr =
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*(u_long *)&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr;
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ysd->dom_server_addr.sin_port =
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*(u_short *)&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port;
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ysd->dom_server_port = ysd->dom_server_addr.sin_port;
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close(fd);
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goto gotit;
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} else {
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/* no lock on binding file, YP is dead. */
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/* Try to bring it back to life. */
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close(fd);
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goto skipit;
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}
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}
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skipit:
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#endif
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if(ysd->dom_vers==-1 || ysd->dom_vers==0) {
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/*
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* We're trying to make a new binding: zorch the
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* existing handle now (if any).
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*/
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if(ysd->dom_client != NULL) {
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clnt_destroy(ysd->dom_client);
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ysd->dom_client = NULL;
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ysd->dom_socket = -1;
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}
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bzero((char *)&clnt_sin, sizeof clnt_sin);
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clnt_sin.sin_family = AF_INET;
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clnt_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
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clnt_sock = RPC_ANYSOCK;
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client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS, &clnt_sock,
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0, 0);
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if(client==NULL) {
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/*
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* These conditions indicate ypbind just isn't
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* alive -- we probably don't want to shoot our
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* mouth off in this case; instead generate error
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* messages only for really exotic problems.
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*/
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if (rpc_createerr.cf_stat != RPC_PROGNOTREGISTERED &&
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(rpc_createerr.cf_stat != RPC_SYSTEMERROR &&
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rpc_createerr.cf_error.re_errno == ECONNREFUSED))
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clnt_pcreateerror("clnttcp_create");
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if(new)
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free(ysd);
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return (YPERR_YPBIND);
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}
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/*
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* Check the port number -- should be < IPPORT_RESERVED.
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* If not, it's possible someone has registered a bogus
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* ypbind with the portmapper and is trying to trick us.
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*/
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if (ntohs(clnt_sin.sin_port) >= IPPORT_RESERVED) {
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if (client != NULL)
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clnt_destroy(client);
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if (new)
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free(ysd);
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return(YPERR_YPBIND);
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}
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tv.tv_sec = _yplib_timeout/2;
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tv.tv_usec = 0;
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r = clnt_call(client, YPBINDPROC_DOMAIN,
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xdr_domainname, (char *)&dom, xdr_ypbind_resp, &ypbr, tv);
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if(r != RPC_SUCCESS) {
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clnt_destroy(client);
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ysd->dom_vers = -1;
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if (r == RPC_PROGUNAVAIL || r == RPC_PROCUNAVAIL) {
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if (new)
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free(ysd);
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return(YPERR_YPBIND);
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}
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fprintf(stderr,
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"YP: server for domain %s not responding, retrying\n", dom);
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goto again;
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} else {
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if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
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clnt_destroy(client);
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ysd->dom_vers = -1;
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sleep(_yplib_timeout/2);
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goto again;
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}
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}
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clnt_destroy(client);
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bzero((char *)&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
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ysd->dom_server_addr.sin_family = AF_INET;
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ysd->dom_server_addr.sin_port =
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*(u_short *)&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port;
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ysd->dom_server_addr.sin_addr.s_addr =
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*(u_long *)&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr;
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/*
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* We could do a reserved port check here too, but this
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* could pose compatibility problems. The local ypbind is
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* supposed to decide whether or not to trust yp servers
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* on insecure ports. For now, we trust its judgement.
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*/
|
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ysd->dom_server_port =
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*(u_short *)&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port;
|
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gotit:
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ysd->dom_vers = YPVERS;
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strcpy(ysd->dom_domain, dom);
|
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}
|
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|
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/* Don't rebuild the connection to the server unless we have to. */
|
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if (ysd->dom_client == NULL) {
|
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tv.tv_sec = _yplib_timeout/2;
|
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tv.tv_usec = 0;
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ysd->dom_socket = RPC_ANYSOCK;
|
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ysd->dom_client = clntudp_create(&ysd->dom_server_addr,
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YPPROG, YPVERS, tv, &ysd->dom_socket);
|
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if(ysd->dom_client==NULL) {
|
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clnt_pcreateerror("clntudp_create");
|
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ysd->dom_vers = -1;
|
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goto again;
|
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}
|
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if( fcntl(ysd->dom_socket, F_SETFD, 1) == -1)
|
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perror("fcntl: F_SETFD");
|
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/*
|
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* We want a port number associated with this socket
|
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* so that we can check its authenticity later.
|
|
*/
|
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checklen = sizeof(struct sockaddr_in);
|
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bzero((char *)&check, checklen);
|
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bind(ysd->dom_socket, (struct sockaddr *)&check, checklen);
|
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check.sin_family = AF_INET;
|
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if (!getsockname(ysd->dom_socket,
|
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(struct sockaddr *)&check, &checklen)) {
|
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ysd->dom_local_port = check.sin_port;
|
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} else {
|
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clnt_destroy(ysd->dom_client);
|
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if (new)
|
|
free(ysd);
|
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return(YPERR_YPBIND);
|
|
}
|
|
}
|
|
|
|
if(new) {
|
|
ysd->dom_pnext = _ypbindlist;
|
|
_ypbindlist = ysd;
|
|
}
|
|
|
|
if(ypdb!=NULL)
|
|
*ypdb = ysd;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_yp_unbind(ypb)
|
|
struct dom_binding *ypb;
|
|
{
|
|
struct sockaddr_in check;
|
|
int checklen = sizeof(struct sockaddr_in);
|
|
|
|
if (ypb->dom_client != NULL) {
|
|
/* Check the socket -- may have been hosed by the caller. */
|
|
if (getsockname(ypb->dom_socket, (struct sockaddr *)&check,
|
|
&checklen) == -1 || check.sin_family != AF_INET ||
|
|
check.sin_port != ypb->dom_local_port) {
|
|
int save, sock;
|
|
|
|
sock = ypb->dom_socket;
|
|
save = dup(ypb->dom_socket);
|
|
clnt_destroy(ypb->dom_client);
|
|
sock = dup2(save, sock);
|
|
close(save);
|
|
} else
|
|
clnt_destroy(ypb->dom_client);
|
|
}
|
|
|
|
ypb->dom_client = NULL;
|
|
ypb->dom_socket = -1;
|
|
ypb->dom_vers = -1;
|
|
}
|
|
|
|
int
|
|
yp_bind(dom)
|
|
char *dom;
|
|
{
|
|
return _yp_dobind(dom, NULL);
|
|
}
|
|
|
|
void
|
|
yp_unbind(dom)
|
|
char *dom;
|
|
{
|
|
struct dom_binding *ypb, *ypbp;
|
|
|
|
ypbp = NULL;
|
|
for(ypb=_ypbindlist; ypb; ypb=ypb->dom_pnext) {
|
|
if( strcmp(dom, ypb->dom_domain) == 0) {
|
|
_yp_unbind(ypb);
|
|
if(ypbp)
|
|
ypbp->dom_pnext = ypb->dom_pnext;
|
|
else
|
|
_ypbindlist = ypb->dom_pnext;
|
|
free(ypb);
|
|
return;
|
|
}
|
|
ypbp = ypb;
|
|
}
|
|
return;
|
|
}
|
|
|
|
int
|
|
yp_match(indomain, inmap, inkey, inkeylen, outval, outvallen)
|
|
char *indomain;
|
|
char *inmap;
|
|
const char *inkey;
|
|
int inkeylen;
|
|
char **outval;
|
|
int *outvallen;
|
|
{
|
|
struct dom_binding *ysd;
|
|
struct ypresp_val yprv;
|
|
struct timeval tv;
|
|
struct ypreq_key yprk;
|
|
int r;
|
|
|
|
*outval = NULL;
|
|
*outvallen = 0;
|
|
|
|
/* Sanity check */
|
|
|
|
if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
|
|
inmap == NULL || !strlen(inmap) ||
|
|
indomain == NULL || !strlen(indomain))
|
|
return YPERR_BADARGS;
|
|
|
|
#ifdef YPMATCHCACHE
|
|
if( !strcmp(_yp_domain, indomain) && ypmatch_find(inmap, inkey,
|
|
inkeylen, &yprv.val.valdat_val, &yprv.val.valdat_len)) {
|
|
*outvallen = yprv.val.valdat_len;
|
|
*outval = (char *)malloc(*outvallen+1);
|
|
bcopy(yprv.val.valdat_val, *outval, *outvallen);
|
|
(*outval)[*outvallen] = '\0';
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
yprk.domain = indomain;
|
|
yprk.map = inmap;
|
|
yprk.key.keydat_val = (char *)inkey;
|
|
yprk.key.keydat_len = inkeylen;
|
|
|
|
bzero((char *)&yprv, sizeof yprv);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_MATCH,
|
|
xdr_ypreq_key, &yprk, xdr_ypresp_val, &yprv, tv);
|
|
if(r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_match: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
|
|
if( !(r=ypprot_err(yprv.stat)) ) {
|
|
*outvallen = yprv.val.valdat_len;
|
|
*outval = (char *)malloc(*outvallen+1);
|
|
bcopy(yprv.val.valdat_val, *outval, *outvallen);
|
|
(*outval)[*outvallen] = '\0';
|
|
#ifdef YPMATCHCACHE
|
|
if( strcmp(_yp_domain, indomain)==0 )
|
|
ypmatch_add(inmap, inkey, inkeylen, *outval, *outvallen);
|
|
#endif
|
|
}
|
|
|
|
xdr_free(xdr_ypresp_val, (char *)&yprv);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
yp_get_default_domain(domp)
|
|
char **domp;
|
|
{
|
|
*domp = NULL;
|
|
if(_yp_domain[0] == '\0')
|
|
if( getdomainname(_yp_domain, sizeof _yp_domain))
|
|
return YPERR_NODOM;
|
|
*domp = _yp_domain;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
yp_first(indomain, inmap, outkey, outkeylen, outval, outvallen)
|
|
char *indomain;
|
|
char *inmap;
|
|
char **outkey;
|
|
int *outkeylen;
|
|
char **outval;
|
|
int *outvallen;
|
|
{
|
|
struct ypresp_key_val yprkv;
|
|
struct ypreq_nokey yprnk;
|
|
struct dom_binding *ysd;
|
|
struct timeval tv;
|
|
int r;
|
|
|
|
/* Sanity check */
|
|
|
|
if (indomain == NULL || !strlen(indomain) ||
|
|
inmap == NULL || !strlen(inmap))
|
|
return YPERR_BADARGS;
|
|
|
|
*outkey = *outval = NULL;
|
|
*outkeylen = *outvallen = 0;
|
|
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
yprnk.domain = indomain;
|
|
yprnk.map = inmap;
|
|
bzero((char *)&yprkv, sizeof yprkv);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_FIRST,
|
|
xdr_ypreq_nokey, &yprnk, xdr_ypresp_key_val, &yprkv, tv);
|
|
if(r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_first: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
if( !(r=ypprot_err(yprkv.stat)) ) {
|
|
*outkeylen = yprkv.key.keydat_len;
|
|
*outkey = (char *)malloc(*outkeylen+1);
|
|
bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
|
|
(*outkey)[*outkeylen] = '\0';
|
|
*outvallen = yprkv.val.valdat_len;
|
|
*outval = (char *)malloc(*outvallen+1);
|
|
bcopy(yprkv.val.valdat_val, *outval, *outvallen);
|
|
(*outval)[*outvallen] = '\0';
|
|
}
|
|
|
|
xdr_free(xdr_ypresp_key_val, (char *)&yprkv);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
yp_next(indomain, inmap, inkey, inkeylen, outkey, outkeylen, outval, outvallen)
|
|
char *indomain;
|
|
char *inmap;
|
|
char *inkey;
|
|
int inkeylen;
|
|
char **outkey;
|
|
int *outkeylen;
|
|
char **outval;
|
|
int *outvallen;
|
|
{
|
|
struct ypresp_key_val yprkv;
|
|
struct ypreq_key yprk;
|
|
struct dom_binding *ysd;
|
|
struct timeval tv;
|
|
int r;
|
|
|
|
/* Sanity check */
|
|
|
|
if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
|
|
inmap == NULL || !strlen(inmap) ||
|
|
indomain == NULL || !strlen(indomain))
|
|
return YPERR_BADARGS;
|
|
|
|
*outkey = *outval = NULL;
|
|
*outkeylen = *outvallen = 0;
|
|
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
yprk.domain = indomain;
|
|
yprk.map = inmap;
|
|
yprk.key.keydat_val = inkey;
|
|
yprk.key.keydat_len = inkeylen;
|
|
bzero((char *)&yprkv, sizeof yprkv);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_NEXT,
|
|
xdr_ypreq_key, &yprk, xdr_ypresp_key_val, &yprkv, tv);
|
|
if(r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_next: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
if( !(r=ypprot_err(yprkv.stat)) ) {
|
|
*outkeylen = yprkv.key.keydat_len;
|
|
*outkey = (char *)malloc(*outkeylen+1);
|
|
bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
|
|
(*outkey)[*outkeylen] = '\0';
|
|
*outvallen = yprkv.val.valdat_len;
|
|
*outval = (char *)malloc(*outvallen+1);
|
|
bcopy(yprkv.val.valdat_val, *outval, *outvallen);
|
|
(*outval)[*outvallen] = '\0';
|
|
}
|
|
|
|
xdr_free(xdr_ypresp_key_val, (char *)&yprkv);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
yp_all(indomain, inmap, incallback)
|
|
char *indomain;
|
|
char *inmap;
|
|
struct ypall_callback *incallback;
|
|
{
|
|
struct ypreq_nokey yprnk;
|
|
struct dom_binding *ysd;
|
|
struct timeval tv;
|
|
struct sockaddr_in clnt_sin;
|
|
CLIENT *clnt;
|
|
u_long status, savstat;
|
|
int clnt_sock;
|
|
|
|
/* Sanity check */
|
|
|
|
if (indomain == NULL || !strlen(indomain) ||
|
|
inmap == NULL || !strlen(inmap))
|
|
return YPERR_BADARGS;
|
|
|
|
again:
|
|
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
/* YPPROC_ALL manufactures its own channel to ypserv using TCP */
|
|
|
|
clnt_sock = RPC_ANYSOCK;
|
|
clnt_sin = ysd->dom_server_addr;
|
|
clnt_sin.sin_port = 0;
|
|
clnt = clnttcp_create(&clnt_sin, YPPROG, YPVERS, &clnt_sock, 0, 0);
|
|
if(clnt==NULL) {
|
|
printf("clnttcp_create failed\n");
|
|
return YPERR_PMAP;
|
|
}
|
|
|
|
yprnk.domain = indomain;
|
|
yprnk.map = inmap;
|
|
ypresp_allfn = incallback->foreach;
|
|
ypresp_data = (void *)incallback->data;
|
|
|
|
if (clnt_call(clnt, YPPROC_ALL,
|
|
xdr_ypreq_nokey, &yprnk,
|
|
xdr_ypresp_all_seq, &status, tv) != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_next: clnt_call");
|
|
clnt_destroy(clnt);
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
|
|
clnt_destroy(clnt);
|
|
savstat = status;
|
|
xdr_free(xdr_ypresp_all_seq, (char *)&status); /* not really needed... */
|
|
if(savstat != YP_NOMORE)
|
|
return ypprot_err(savstat);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
yp_order(indomain, inmap, outorder)
|
|
char *indomain;
|
|
char *inmap;
|
|
int *outorder;
|
|
{
|
|
struct dom_binding *ysd;
|
|
struct ypresp_order ypro;
|
|
struct ypreq_nokey yprnk;
|
|
struct timeval tv;
|
|
int r;
|
|
|
|
/* Sanity check */
|
|
|
|
if (indomain == NULL || !strlen(indomain) ||
|
|
inmap == NULL || !strlen(inmap))
|
|
return YPERR_BADARGS;
|
|
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
yprnk.domain = indomain;
|
|
yprnk.map = inmap;
|
|
|
|
bzero((char *)(char *)&ypro, sizeof ypro);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_ORDER,
|
|
xdr_ypreq_nokey, &yprnk, xdr_ypresp_order, &ypro, tv);
|
|
|
|
/*
|
|
* NIS+ in YP compat mode doesn't support the YPPROC_ORDER
|
|
* procedure.
|
|
*/
|
|
if (r == RPC_PROCUNAVAIL) {
|
|
return(YPERR_YPERR);
|
|
}
|
|
|
|
if(r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_order: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
|
|
if( !(r=ypprot_err(ypro.stat)) ) {
|
|
*outorder = ypro.ordernum;
|
|
}
|
|
|
|
xdr_free(xdr_ypresp_order, (char *)&ypro);
|
|
return (r);
|
|
}
|
|
|
|
int
|
|
yp_master(indomain, inmap, outname)
|
|
char *indomain;
|
|
char *inmap;
|
|
char **outname;
|
|
{
|
|
struct dom_binding *ysd;
|
|
struct ypresp_master yprm;
|
|
struct ypreq_nokey yprnk;
|
|
struct timeval tv;
|
|
int r;
|
|
|
|
/* Sanity check */
|
|
|
|
if (indomain == NULL || !strlen(indomain) ||
|
|
inmap == NULL || !strlen(inmap))
|
|
return YPERR_BADARGS;
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
yprnk.domain = indomain;
|
|
yprnk.map = inmap;
|
|
|
|
bzero((char *)&yprm, sizeof yprm);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_MASTER,
|
|
xdr_ypreq_nokey, &yprnk, xdr_ypresp_master, &yprm, tv);
|
|
if(r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_master: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
|
|
if( !(r=ypprot_err(yprm.stat)) ) {
|
|
*outname = (char *)strdup(yprm.peer);
|
|
}
|
|
|
|
xdr_free(xdr_ypresp_master, (char *)&yprm);
|
|
return (r);
|
|
}
|
|
int
|
|
yp_maplist(indomain, outmaplist)
|
|
char *indomain;
|
|
struct ypmaplist **outmaplist;
|
|
{
|
|
struct dom_binding *ysd;
|
|
struct ypresp_maplist ypml;
|
|
struct timeval tv;
|
|
int r;
|
|
|
|
/* Sanity check */
|
|
|
|
if (indomain == NULL || !strlen(indomain))
|
|
return YPERR_BADARGS;
|
|
|
|
again:
|
|
if( _yp_dobind(indomain, &ysd) != 0)
|
|
return YPERR_DOMAIN;
|
|
|
|
tv.tv_sec = _yplib_timeout;
|
|
tv.tv_usec = 0;
|
|
|
|
bzero((char *)&ypml, sizeof ypml);
|
|
|
|
r = clnt_call(ysd->dom_client, YPPROC_MAPLIST,
|
|
xdr_domainname,(char *)&indomain,xdr_ypresp_maplist,&ypml,tv);
|
|
if (r != RPC_SUCCESS) {
|
|
clnt_perror(ysd->dom_client, "yp_maplist: clnt_call");
|
|
_yp_unbind(ysd);
|
|
goto again;
|
|
}
|
|
if( !(r=ypprot_err(ypml.stat)) ) {
|
|
*outmaplist = ypml.maps;
|
|
}
|
|
|
|
/* NO: xdr_free(xdr_ypresp_maplist, &ypml);*/
|
|
return (r);
|
|
}
|
|
|
|
char *
|
|
yperr_string(incode)
|
|
int incode;
|
|
{
|
|
static char err[80];
|
|
|
|
switch(incode) {
|
|
case 0:
|
|
return "Success";
|
|
case YPERR_BADARGS:
|
|
return "Request arguments bad";
|
|
case YPERR_RPC:
|
|
return "RPC failure";
|
|
case YPERR_DOMAIN:
|
|
return "Can't bind to server which serves this domain";
|
|
case YPERR_MAP:
|
|
return "No such map in server's domain";
|
|
case YPERR_KEY:
|
|
return "No such key in map";
|
|
case YPERR_YPERR:
|
|
return "YP server error";
|
|
case YPERR_RESRC:
|
|
return "Local resource allocation failure";
|
|
case YPERR_NOMORE:
|
|
return "No more records in map database";
|
|
case YPERR_PMAP:
|
|
return "Can't communicate with portmapper";
|
|
case YPERR_YPBIND:
|
|
return "Can't communicate with ypbind";
|
|
case YPERR_YPSERV:
|
|
return "Can't communicate with ypserv";
|
|
case YPERR_NODOM:
|
|
return "Local domain name not set";
|
|
case YPERR_BADDB:
|
|
return "Server data base is bad";
|
|
case YPERR_VERS:
|
|
return "YP server version mismatch - server can't supply service.";
|
|
case YPERR_ACCESS:
|
|
return "Access violation";
|
|
case YPERR_BUSY:
|
|
return "Database is busy";
|
|
}
|
|
sprintf(err, "YP unknown error %d\n", incode);
|
|
return err;
|
|
}
|
|
|
|
int
|
|
ypprot_err(incode)
|
|
unsigned int incode;
|
|
{
|
|
switch(incode) {
|
|
case YP_TRUE:
|
|
return 0;
|
|
case YP_FALSE:
|
|
return YPERR_YPBIND;
|
|
case YP_NOMORE:
|
|
return YPERR_NOMORE;
|
|
case YP_NOMAP:
|
|
return YPERR_MAP;
|
|
case YP_NODOM:
|
|
return YPERR_DOMAIN;
|
|
case YP_NOKEY:
|
|
return YPERR_KEY;
|
|
case YP_BADOP:
|
|
return YPERR_YPERR;
|
|
case YP_BADDB:
|
|
return YPERR_BADDB;
|
|
case YP_YPERR:
|
|
return YPERR_YPERR;
|
|
case YP_BADARGS:
|
|
return YPERR_BADARGS;
|
|
case YP_VERS:
|
|
return YPERR_VERS;
|
|
}
|
|
return YPERR_YPERR;
|
|
}
|
|
|
|
int
|
|
_yp_check(dom)
|
|
char **dom;
|
|
{
|
|
char *unused;
|
|
|
|
if( _yp_domain[0]=='\0' )
|
|
if( yp_get_default_domain(&unused) )
|
|
return 0;
|
|
|
|
if(dom)
|
|
*dom = _yp_domain;
|
|
|
|
if( yp_bind(_yp_domain)==0 ) {
|
|
yp_unbind(_yp_domain);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|