diff options
Diffstat (limited to 'usr.sbin/rpc.ypupdated/yp_dbupdate.c')
| -rw-r--r-- | usr.sbin/rpc.ypupdated/yp_dbupdate.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/usr.sbin/rpc.ypupdated/yp_dbupdate.c b/usr.sbin/rpc.ypupdated/yp_dbupdate.c new file mode 100644 index 000000000000..af17bf5244ef --- /dev/null +++ b/usr.sbin/rpc.ypupdated/yp_dbupdate.c @@ -0,0 +1,147 @@ +/*- + * SPDX-License-Identifier: BSD-4-Clause + * + * Copyright (c) 1996 + * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Bill Paul. + * 4. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +#include <sys/fcntl.h> + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <limits.h> +#include <db.h> +#include <unistd.h> +#include <rpcsvc/ypclnt.h> +#include <rpcsvc/ypupdate_prot.h> +#include "ypxfr_extern.h" +#include "ypupdated_extern.h" + +static int +yp_domake(char *map, char *domain) +{ + int pid; + + switch ((pid = fork())) { + case 0: + execlp(MAP_UPDATE_PATH, MAP_UPDATE, map, domain, (char *)NULL); + yp_error("couldn't exec map update process: %s", + strerror(errno)); + exit(1); + break; + case -1: + yp_error("fork() failed: %s", strerror(errno)); + return(YPERR_YPERR); + break; + default: + children++; + break; + } + + return(0); +} + +int +ypmap_update(char *netname, char *map, unsigned int op, unsigned int keylen, + char *keyval, unsigned int datlen, char *datval) +{ + DB *dbp; + DBT key = { NULL, 0 }, data = { NULL, 0 }; + char *yp_last = "YP_LAST_MODIFIED"; + char yplastbuf[32]; + char *domptr; + int rval = 0; + + if ((domptr = strchr(netname, '@')) == NULL) + return(ERR_ACCESS); + domptr++; + + + dbp = yp_open_db_rw(domptr, map, O_RDWR); + if (dbp == NULL) + return(ERR_DBASE); + + key.data = keyval; + key.size = keylen; + data.data = datval; + data.size = datlen; + + switch (op) { + case YPOP_DELETE: /* delete this entry */ + rval = yp_del_record(dbp, &key); + if (rval == YP_TRUE) + rval = 0; + break; + case YPOP_INSERT: /* add, do not change */ + rval = yp_put_record(dbp, &key, &data, 0); + if (rval == YP_TRUE) + rval = 0; + break; + case YPOP_STORE: /* add, or change */ + rval = yp_put_record(dbp, &key, &data, 1); + if (rval == YP_TRUE) + rval = 0; + break; + case YPOP_CHANGE: /* change, do not add */ + if (yp_get_record(domptr, map, &key, &data, 0) != YP_TRUE) { + rval = ERR_KEY; + break; + } + rval = yp_put_record(dbp, &key, &data, 1); + if (rval == YP_TRUE) + rval = 0; + break; + default: + yp_error("unknown update command: (%d)", op); + } + + if (rval) { + (void)(dbp->close)(dbp); + return(rval); + } + + snprintf(yplastbuf, sizeof(yplastbuf), "%jd", (intmax_t)time(NULL)); + key.data = yp_last; + key.size = strlen(yp_last); + data.data = (char *)&yplastbuf; + data.size = strlen(yplastbuf); + if (yp_put_record(dbp, &key, &data, 1) != YP_TRUE) { + yp_error("failed to update timestamp in %s/%s", domptr, map); + (void)(dbp->close)(dbp); + return(ERR_DBASE); + } + + (void)(dbp->close)(dbp); + return(yp_domake(map, domptr)); +} |