17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
54a190493Ssdussud * Common Development and Distribution License (the "License").
64a190493Ssdussud * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*b892d001Svt * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
237c478bd9Sstevel@tonic-gate * Use is subject to license terms.
247c478bd9Sstevel@tonic-gate */
257c478bd9Sstevel@tonic-gate
267c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
277c478bd9Sstevel@tonic-gate /* All Rights Reserved */
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate /*
307c478bd9Sstevel@tonic-gate * Portions of this source code were derived from Berkeley
317c478bd9Sstevel@tonic-gate * under license from the Regents of the University of
327c478bd9Sstevel@tonic-gate * California.
337c478bd9Sstevel@tonic-gate */
347c478bd9Sstevel@tonic-gate
357c478bd9Sstevel@tonic-gate /*
367c478bd9Sstevel@tonic-gate * DESCRIPTION: This file contains various functions used by more than one NIS
377c478bd9Sstevel@tonic-gate * components. A lot of this code started off in ypxfr and then
387c478bd9Sstevel@tonic-gate * got used by other components. Some of it has become a little
397c478bd9Sstevel@tonic-gate * 'quirky' and should probably be re-worked.
407c478bd9Sstevel@tonic-gate */
417c478bd9Sstevel@tonic-gate
427c478bd9Sstevel@tonic-gate #include <unistd.h>
437c478bd9Sstevel@tonic-gate #include <syslog.h>
447c478bd9Sstevel@tonic-gate #include <sys/mman.h>
457c478bd9Sstevel@tonic-gate #include <thread.h>
467c478bd9Sstevel@tonic-gate #include <synch.h>
477c478bd9Sstevel@tonic-gate #include <stdarg.h>
487c478bd9Sstevel@tonic-gate #include <ndbm.h>
497c478bd9Sstevel@tonic-gate #include "../ypsym.h"
507c478bd9Sstevel@tonic-gate #include "../ypdefs.h"
517c478bd9Sstevel@tonic-gate #include "shim.h"
527c478bd9Sstevel@tonic-gate
537c478bd9Sstevel@tonic-gate USE_DBM
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate /*
567c478bd9Sstevel@tonic-gate * Globals
577c478bd9Sstevel@tonic-gate */
587c478bd9Sstevel@tonic-gate
597c478bd9Sstevel@tonic-gate /*
607c478bd9Sstevel@tonic-gate * DESCRIPTION : Utility functions used by everything.
617c478bd9Sstevel@tonic-gate */
627c478bd9Sstevel@tonic-gate bool check_map_existence(char *);
637c478bd9Sstevel@tonic-gate void logprintf2(char *format, ...);
644a190493Ssdussud extern bool ypcheck_map_existence_yptol();
657c478bd9Sstevel@tonic-gate
667c478bd9Sstevel@tonic-gate /*
677c478bd9Sstevel@tonic-gate * This checks to see if the source map files exist, then renames them to the
687c478bd9Sstevel@tonic-gate * target names. This is a boolean function. The file names from.pag and
697c478bd9Sstevel@tonic-gate * from.dir will be changed to to.pag and to.dir in the success case.
707c478bd9Sstevel@tonic-gate *
717c478bd9Sstevel@tonic-gate * Note: If the second of the two renames fails, yprename_map will try to
727c478bd9Sstevel@tonic-gate * un-rename the first pair, and leave the world in the state it was on entry.
737c478bd9Sstevel@tonic-gate * This might fail, too, though...
747c478bd9Sstevel@tonic-gate *
757c478bd9Sstevel@tonic-gate * GIVEN : Name of map to copy from
767c478bd9Sstevel@tonic-gate * Name of map to copy to
777c478bd9Sstevel@tonic-gate * Flag indicating if map is secure.
787c478bd9Sstevel@tonic-gate */
797c478bd9Sstevel@tonic-gate bool
rename_map(from,to,secure_map)807c478bd9Sstevel@tonic-gate rename_map(from, to, secure_map)
817c478bd9Sstevel@tonic-gate char *from;
827c478bd9Sstevel@tonic-gate char *to;
837c478bd9Sstevel@tonic-gate bool_t secure_map;
847c478bd9Sstevel@tonic-gate {
857c478bd9Sstevel@tonic-gate char fromfile[MAXNAMLEN + 1];
867c478bd9Sstevel@tonic-gate char tofile[MAXNAMLEN + 1];
877c478bd9Sstevel@tonic-gate char savefile[MAXNAMLEN + 1];
887c478bd9Sstevel@tonic-gate
897c478bd9Sstevel@tonic-gate if (!from || !to) {
907c478bd9Sstevel@tonic-gate return (FALSE);
917c478bd9Sstevel@tonic-gate }
927c478bd9Sstevel@tonic-gate
937c478bd9Sstevel@tonic-gate if (!check_map_existence(from)) {
947c478bd9Sstevel@tonic-gate return (FALSE);
957c478bd9Sstevel@tonic-gate }
967c478bd9Sstevel@tonic-gate
977c478bd9Sstevel@tonic-gate (void) strcpy(fromfile, from);
987c478bd9Sstevel@tonic-gate (void) strcat(fromfile, dbm_pag);
997c478bd9Sstevel@tonic-gate (void) strcpy(tofile, to);
1007c478bd9Sstevel@tonic-gate (void) strcat(tofile, dbm_pag);
1017c478bd9Sstevel@tonic-gate
1027c478bd9Sstevel@tonic-gate if (rename(fromfile, tofile)) {
1037c478bd9Sstevel@tonic-gate logprintf2("Can't mv %s to %s.\n", fromfile,
1047c478bd9Sstevel@tonic-gate tofile);
1057c478bd9Sstevel@tonic-gate return (FALSE);
1067c478bd9Sstevel@tonic-gate }
1077c478bd9Sstevel@tonic-gate
1087c478bd9Sstevel@tonic-gate (void) strcpy(savefile, tofile);
1097c478bd9Sstevel@tonic-gate (void) strcpy(fromfile, from);
1107c478bd9Sstevel@tonic-gate (void) strcat(fromfile, dbm_dir);
1117c478bd9Sstevel@tonic-gate (void) strcpy(tofile, to);
1127c478bd9Sstevel@tonic-gate (void) strcat(tofile, dbm_dir);
1137c478bd9Sstevel@tonic-gate
1147c478bd9Sstevel@tonic-gate if (rename(fromfile, tofile)) {
1157c478bd9Sstevel@tonic-gate logprintf2("Can't mv %s to %s.\n", fromfile,
1167c478bd9Sstevel@tonic-gate tofile);
1177c478bd9Sstevel@tonic-gate (void) strcpy(fromfile, from);
1187c478bd9Sstevel@tonic-gate (void) strcat(fromfile, dbm_pag);
1197c478bd9Sstevel@tonic-gate (void) strcpy(tofile, to);
1207c478bd9Sstevel@tonic-gate (void) strcat(tofile, dbm_pag);
1217c478bd9Sstevel@tonic-gate
1227c478bd9Sstevel@tonic-gate if (rename(tofile, fromfile)) {
1237c478bd9Sstevel@tonic-gate logprintf2(
1247c478bd9Sstevel@tonic-gate "Can't recover from rename failure.\n");
1257c478bd9Sstevel@tonic-gate return (FALSE);
1267c478bd9Sstevel@tonic-gate }
1277c478bd9Sstevel@tonic-gate
1287c478bd9Sstevel@tonic-gate return (FALSE);
1297c478bd9Sstevel@tonic-gate }
1307c478bd9Sstevel@tonic-gate
1317c478bd9Sstevel@tonic-gate if (!secure_map) {
1327c478bd9Sstevel@tonic-gate chmod(savefile, 0644);
1337c478bd9Sstevel@tonic-gate chmod(tofile, 0644);
1347c478bd9Sstevel@tonic-gate }
1357c478bd9Sstevel@tonic-gate
1367c478bd9Sstevel@tonic-gate return (TRUE);
1377c478bd9Sstevel@tonic-gate }
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate /*
1407c478bd9Sstevel@tonic-gate * Function : delete_map()
1417c478bd9Sstevel@tonic-gate *
1427c478bd9Sstevel@tonic-gate * Description: Deletes a map
1437c478bd9Sstevel@tonic-gate *
1447c478bd9Sstevel@tonic-gate * Given : Map name
1457c478bd9Sstevel@tonic-gate *
1467c478bd9Sstevel@tonic-gate * Return : TRUE = Map deleted
1477c478bd9Sstevel@tonic-gate * FALSE = Map not completly deleted
1487c478bd9Sstevel@tonic-gate */
1497c478bd9Sstevel@tonic-gate bool
delete_map(name)1507c478bd9Sstevel@tonic-gate delete_map(name)
1517c478bd9Sstevel@tonic-gate char *name;
1527c478bd9Sstevel@tonic-gate {
1537c478bd9Sstevel@tonic-gate char fromfile[MAXNAMLEN + 1];
1547c478bd9Sstevel@tonic-gate
1557c478bd9Sstevel@tonic-gate if (!name) {
1567c478bd9Sstevel@tonic-gate return (FALSE);
1577c478bd9Sstevel@tonic-gate }
1587c478bd9Sstevel@tonic-gate
1597c478bd9Sstevel@tonic-gate if (!check_map_existence(name)) {
1607c478bd9Sstevel@tonic-gate /* Already gone */
1617c478bd9Sstevel@tonic-gate return (TRUE);
1627c478bd9Sstevel@tonic-gate }
1637c478bd9Sstevel@tonic-gate
1647c478bd9Sstevel@tonic-gate (void) strcpy(fromfile, name);
1657c478bd9Sstevel@tonic-gate (void) strcat(fromfile, dbm_pag);
1667c478bd9Sstevel@tonic-gate
1677c478bd9Sstevel@tonic-gate if (unlink(fromfile)) {
1687c478bd9Sstevel@tonic-gate logprintf2("Can't unlink %s.\n", fromfile);
1697c478bd9Sstevel@tonic-gate return (FALSE);
1707c478bd9Sstevel@tonic-gate }
1717c478bd9Sstevel@tonic-gate
1727c478bd9Sstevel@tonic-gate (void) strcpy(fromfile, name);
1737c478bd9Sstevel@tonic-gate (void) strcat(fromfile, dbm_dir);
1747c478bd9Sstevel@tonic-gate
1757c478bd9Sstevel@tonic-gate if (unlink(fromfile)) {
1767c478bd9Sstevel@tonic-gate logprintf2("Can't unlink %s.\n", fromfile);
1777c478bd9Sstevel@tonic-gate return (FALSE);
1787c478bd9Sstevel@tonic-gate }
1797c478bd9Sstevel@tonic-gate
1807c478bd9Sstevel@tonic-gate return (TRUE);
1817c478bd9Sstevel@tonic-gate }
1827c478bd9Sstevel@tonic-gate
1837c478bd9Sstevel@tonic-gate /*
1847c478bd9Sstevel@tonic-gate * This performs an existence check on the dbm data base files <pname>.pag and
1857c478bd9Sstevel@tonic-gate * <pname>.dir.
1867c478bd9Sstevel@tonic-gate */
1877c478bd9Sstevel@tonic-gate bool
check_map_existence(pname)1887c478bd9Sstevel@tonic-gate check_map_existence(pname)
1897c478bd9Sstevel@tonic-gate char *pname;
1907c478bd9Sstevel@tonic-gate {
1917c478bd9Sstevel@tonic-gate char dbfile[MAXNAMLEN + 1];
192*b892d001Svt struct stat64 filestat;
1937c478bd9Sstevel@tonic-gate int len;
1947c478bd9Sstevel@tonic-gate
1957c478bd9Sstevel@tonic-gate if (!pname || ((len = strlen(pname)) == 0) ||
1967c478bd9Sstevel@tonic-gate (len + 5) > (MAXNAMLEN + 1)) {
1977c478bd9Sstevel@tonic-gate return (FALSE);
1987c478bd9Sstevel@tonic-gate }
1997c478bd9Sstevel@tonic-gate
2007c478bd9Sstevel@tonic-gate errno = 0;
2017c478bd9Sstevel@tonic-gate (void) strcpy(dbfile, pname);
2027c478bd9Sstevel@tonic-gate (void) strcat(dbfile, dbm_dir);
2037c478bd9Sstevel@tonic-gate
204*b892d001Svt if (stat64(dbfile, &filestat) != -1) {
2057c478bd9Sstevel@tonic-gate (void) strcpy(dbfile, pname);
2067c478bd9Sstevel@tonic-gate (void) strcat(dbfile, dbm_pag);
2077c478bd9Sstevel@tonic-gate
208*b892d001Svt if (stat64(dbfile, &filestat) != -1) {
2097c478bd9Sstevel@tonic-gate return (TRUE);
2107c478bd9Sstevel@tonic-gate } else {
2117c478bd9Sstevel@tonic-gate
2127c478bd9Sstevel@tonic-gate if (errno != ENOENT) {
2137c478bd9Sstevel@tonic-gate logprintf2(
2147c478bd9Sstevel@tonic-gate "Stat error on map file %s.\n",
2157c478bd9Sstevel@tonic-gate dbfile);
2167c478bd9Sstevel@tonic-gate }
2177c478bd9Sstevel@tonic-gate
2187c478bd9Sstevel@tonic-gate return (FALSE);
2197c478bd9Sstevel@tonic-gate }
2207c478bd9Sstevel@tonic-gate
2217c478bd9Sstevel@tonic-gate } else {
2227c478bd9Sstevel@tonic-gate
2237c478bd9Sstevel@tonic-gate if (errno != ENOENT) {
2247c478bd9Sstevel@tonic-gate logprintf2(
2257c478bd9Sstevel@tonic-gate "Stat error on map file %s.\n",
2267c478bd9Sstevel@tonic-gate dbfile);
2277c478bd9Sstevel@tonic-gate }
2287c478bd9Sstevel@tonic-gate
2297c478bd9Sstevel@tonic-gate return (FALSE);
2307c478bd9Sstevel@tonic-gate }
2317c478bd9Sstevel@tonic-gate }
2327c478bd9Sstevel@tonic-gate
2337c478bd9Sstevel@tonic-gate /*
2347c478bd9Sstevel@tonic-gate * FUNCTION : logprintf2()
2357c478bd9Sstevel@tonic-gate *
2367c478bd9Sstevel@tonic-gate * DESCRIPTION: The functions in this file were oringinaly shared between
2377c478bd9Sstevel@tonic-gate * ypxfr and ypserv. On error they called logprintf().
2387c478bd9Sstevel@tonic-gate * Unfortunatly this had been implemented differently in the two
2397c478bd9Sstevel@tonic-gate * sources and not at all in some of the NIS components required
2407c478bd9Sstevel@tonic-gate * for N2L.
2417c478bd9Sstevel@tonic-gate *
2427c478bd9Sstevel@tonic-gate * This function is simplified version of logprinf() as/when
2437c478bd9Sstevel@tonic-gate * possible the other error calls should be migrated to use this
2447c478bd9Sstevel@tonic-gate * common version. If a common set of functionality can be found
2457c478bd9Sstevel@tonic-gate * this versions should be modified to support it.
2467c478bd9Sstevel@tonic-gate */
2477c478bd9Sstevel@tonic-gate void
logprintf2(char * format,...)2487c478bd9Sstevel@tonic-gate logprintf2(char *format, ...)
2497c478bd9Sstevel@tonic-gate {
2507c478bd9Sstevel@tonic-gate va_list ap;
2517c478bd9Sstevel@tonic-gate
2527c478bd9Sstevel@tonic-gate va_start(ap, format);
2537c478bd9Sstevel@tonic-gate
2547c478bd9Sstevel@tonic-gate syslog(LOG_ERR, format, ap);
2557c478bd9Sstevel@tonic-gate
2567c478bd9Sstevel@tonic-gate va_end(ap);
2577c478bd9Sstevel@tonic-gate }
2587c478bd9Sstevel@tonic-gate
2597c478bd9Sstevel@tonic-gate /*
2607c478bd9Sstevel@tonic-gate * This performs an existence check on the dbm data base files <name>.pag and
2617c478bd9Sstevel@tonic-gate * <name>.dir. pname is a ptr to the filename. This should be an absolute
2627c478bd9Sstevel@tonic-gate * path.
2637c478bd9Sstevel@tonic-gate * Returns TRUE if the map exists and is accessable; else FALSE.
2647c478bd9Sstevel@tonic-gate *
2657c478bd9Sstevel@tonic-gate * Note: The file name should be a "base" form, without a file "extension" of
2667c478bd9Sstevel@tonic-gate * .dir or .pag appended. See ypmkfilename for a function which will generate
2677c478bd9Sstevel@tonic-gate * the name correctly. Errors in the stat call will be reported at this level,
2687c478bd9Sstevel@tonic-gate * however, the non-existence of a file is not considered an error, and so will
2697c478bd9Sstevel@tonic-gate * not be reported.
2704a190493Ssdussud *
2714a190493Ssdussud * Calls ypcheck_map_existence_yptol() defined in
2724a190493Ssdussud * usr/src/lib/libnisdb/yptol/shim_ancil.c
2737c478bd9Sstevel@tonic-gate */
2747c478bd9Sstevel@tonic-gate bool
ypcheck_map_existence(char * pname)2757c478bd9Sstevel@tonic-gate ypcheck_map_existence(char *pname)
2767c478bd9Sstevel@tonic-gate {
2774a190493Ssdussud return (ypcheck_map_existence_yptol(pname));
2787c478bd9Sstevel@tonic-gate }
279