156 lines
4.3 KiB
C
156 lines
4.3 KiB
C
/*
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* Copyright (c) 1996
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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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* $Id: yp_dbupdate.c,v 1.1 1996/12/26 06:00:13 wpaul Exp $
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*/
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#include <sys/fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <limits.h>
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#include <db.h>
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#include <unistd.h>
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struct dom_binding {};
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#include <rpcsvc/ypclnt.h>
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#include <rpcsvc/ypupdate_prot.h>
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#include "ypxfr_extern.h"
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#include "ypupdated_extern.h"
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#ifndef lint
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static const char rcsid[] = "$Id: yp_dbupdate.c,v 1.1 1996/12/26 06:00:13 wpaul Exp $";
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#endif
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static int yp_domake(map, domain)
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char *map;
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char *domain;
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{
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int pid;
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switch((pid = fork())) {
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case 0:
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execlp(MAP_UPDATE_PATH, MAP_UPDATE, map, domain, NULL);
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yp_error("couldn't exec map update process: %s",
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strerror(errno));
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exit(1);
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break;
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case -1:
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yp_error("fork() failed: %s", strerror(errno));
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return(YPERR_YPERR);
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break;
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default:
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children++;
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break;
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}
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return(0);
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}
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int ypmap_update(netname, map, op, keylen, keyval, datlen, datval)
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char *netname;
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char *map;
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unsigned int op;
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unsigned int keylen;
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char *keyval;
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unsigned int datlen;
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char *datval;
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{
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DB *dbp;
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DBT key = { NULL, 0 }, data = { NULL, 0 };
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char *yp_last = "YP_LAST_MODIFIED";
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char yplastbuf[YPMAXRECORD];
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char *domptr;
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int rval = 0;
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if ((domptr = strchr(netname, '@')) == NULL)
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return(ERR_ACCESS);
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domptr++;
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dbp = yp_open_db_rw(domptr, map, O_RDWR);
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if (dbp == NULL)
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return(ERR_DBASE);
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key.data = keyval;
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key.size = keylen;
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data.data = datval;
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data.size = datlen;
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switch(op) {
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case YPOP_DELETE: /* delete this entry */
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rval = yp_del_record(dbp, &key);
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if (rval == YP_TRUE)
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rval = 0;
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break;
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case YPOP_INSERT: /* add, do not change */
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rval = yp_put_record(dbp, &key, &data, 0);
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if (rval == YP_TRUE)
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rval = 0;
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break;
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case YPOP_STORE: /* add, or change */
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rval = yp_put_record(dbp, &key, &data, 1);
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if (rval == YP_TRUE)
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rval = 0;
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break;
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case YPOP_CHANGE: /* change, do not add */
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if (yp_get_record(domptr, map, &key, &data, 0) != YP_TRUE) {
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rval = ERR_KEY;
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break;
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}
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rval = yp_put_record(dbp, &key, &data, 1);
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if (rval == YP_TRUE)
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rval = 0;
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break;
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default:
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yp_error("unknown update command: (%d)", op);
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}
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if (rval) {
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(void)(dbp->close)(dbp);
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return(rval);
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}
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snprintf(yplastbuf, sizeof(yplastbuf), "%lu", time(NULL));
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key.data = yp_last;
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key.size = strlen(yp_last);
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data.data = (char *)&yplastbuf;
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data.size = strlen(yplastbuf);
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if (yp_put_record(dbp, &key, &data, 1) != YP_TRUE) {
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yp_error("failed to update timestamp in %s/%s", domptr, map);
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(void)(dbp->close)(dbp);
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return(ERR_DBASE);
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}
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(void)(dbp->close)(dbp);
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return(yp_domake(map, domptr));
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}
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