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/*
* Copyright (c) 1989 Jan-Simon Pendry
* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
* Copyright (c) 1989, 1993
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*
* @(#)info_ndbm.c 8.1 (Berkeley) 6/6/93
*
* $Id: info_ndbm.c,v 5.2.2.1 1992/02/09 15:08:31 jsp beta $
*
*/
/*
* Get info from NDBM map
*/
#include "am.h"
#ifdef HAS_NDBM_MAPS
#include <ndbm.h>
#include <fcntl.h>
#include <sys/stat.h>
static int search_ndbm P((DBM *db, char *key, char **val));
static int search_ndbm(db, key, val)
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) {
*val = strdup(v.dptr);
return 0;
}
return ENOENT;
}
int ndbm_search P((mnt_map *m, char *map, char *key, char **pval, time_t *tp));
int ndbm_search(m, map, key, pval, tp)
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;
error = fstat(dbm_pagfno(db), &stb);
if (!error && *tp < stb.st_mtime) {
*tp = stb.st_mtime;
error = -1;
} else {
error = search_ndbm(db, key, pval);
}
(void) dbm_close(db);
return error;
}
return errno;
}
int ndbm_init P((char *map, time_t *tp));
int ndbm_init(map, tp)
char *map;
time_t *tp;
{
DBM *db;
db = dbm_open(map, O_RDONLY, 0);
if (db) {
struct stat stb;
if (fstat(dbm_pagfno(db), &stb) < 0)
*tp = clocktime();
else
*tp = stb.st_mtime;
dbm_close(db);
return 0;
}
return errno;
}
#endif /* HAS_NDBM_MAPS */
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