/* $NetBSD: info_ndbm.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $ */ /* * Copyright (c) 1997-2014 Erez Zadok * Copyright (c) 1989 Jan-Simon Pendry * Copyright (c) 1989 Imperial College of Science, Technology & Medicine * Copyright (c) 1989 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Jan-Simon Pendry at Imperial College, London. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 THE REGENTS 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. * * * File: am-utils/amd/info_ndbm.c * */ /* * Get info from NDBM map */ #ifdef HAVE_CONFIG_H # include #endif /* HAVE_CONFIG_H */ #include #include #include /* forward declarations */ int ndbm_init(mnt_map *m, char *map, time_t *tp); int ndbm_mtime(mnt_map *m, char *map, time_t *tp); int ndbm_search(mnt_map *m, char *map, char *key, char **pval, time_t *tp); static int search_ndbm(mnt_map *m, DBM *db, char *key, char **val) { datum k, v; k.dptr = key; k.dsize = strlen(key) + 1; v = dbm_fetch(db, k); if (v.dptr) { if (m->cfm && (m->cfm->cfm_flags & CFM_SUN_MAP_SYNTAX)) *val = sun_entry2amd(key, v.dptr); else *val = xstrdup(v.dptr); return 0; } return ENOENT; } int ndbm_search(mnt_map *m, char *map, char *key, char **pval, time_t *tp) { DBM *db; db = dbm_open(map, O_RDONLY, 0); if (db) { struct stat stb; int error; #ifdef DBM_SUFFIX char dbfilename[256]; xstrlcpy(dbfilename, map, sizeof(dbfilename)); xstrlcat(dbfilename, DBM_SUFFIX, sizeof(dbfilename)); error = stat(dbfilename, &stb); #else /* not DBM_SUFFIX */ error = fstat(dbm_pagfno(db), &stb); #endif /* not DBM_SUFFIX */ if (!error && *tp < stb.st_mtime) { *tp = stb.st_mtime; error = -1; } else { error = search_ndbm(m, db, key, pval); } (void) dbm_close(db); return error; } return errno; } int ndbm_init(mnt_map *m, char *map, time_t *tp) { DBM *db; db = dbm_open(map, O_RDONLY, 0); if (db) { struct stat stb; int error; #ifdef DBM_SUFFIX char dbfilename[256]; xstrlcpy(dbfilename, map, sizeof(dbfilename)); xstrlcat(dbfilename, DBM_SUFFIX, sizeof(dbfilename)); error = stat(dbfilename, &stb); #else /* not DBM_SUFFIX */ error = fstat(dbm_pagfno(db), &stb); #endif /* not DBM_SUFFIX */ if (error < 0) *tp = clocktime(NULL); else *tp = stb.st_mtime; dbm_close(db); return 0; } return errno; } int ndbm_mtime(mnt_map *m, char *map, time_t *tp) { return ndbm_init(m,map, tp); }