143 lines
4.0 KiB
C
143 lines
4.0 KiB
C
/* $NetBSD: info_ndbm.c,v 1.4 2005/04/23 18:38:18 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997-2005 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgment:
|
|
* 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.
|
|
*
|
|
*
|
|
* Id: info_ndbm.c,v 1.9 2005/01/03 20:56:45 ezk Exp
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Get info from NDBM map
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif /* HAVE_CONFIG_H */
|
|
#include <am_defs.h>
|
|
#include <amd.h>
|
|
|
|
/* 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(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(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];
|
|
|
|
strlcpy(dbfilename, map, sizeof(dbfilename));
|
|
strlcat(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(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];
|
|
|
|
strlcpy(dbfilename, map, sizeof(dbfilename));
|
|
strlcat(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();
|
|
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);
|
|
}
|