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/* $OpenBSD: map.c,v 1.6 2009/05/13 21:20:55 jacekm Exp $ */
/*
* Copyright (c) 2008 Gilles Chehade <gilles@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <db.h>
#include <errno.h>
#include <event.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "smtpd.h"
struct map *
map_findbyname(struct smtpd *env, const char *name)
{
struct map *m;
TAILQ_FOREACH(m, env->sc_maps, m_entry) {
if (strcmp(m->m_name, name) == 0)
break;
}
return (m);
}
struct map *
map_find(struct smtpd *env, objid_t id)
{
struct map *m;
TAILQ_FOREACH(m, env->sc_maps, m_entry) {
if (m->m_id == id)
break;
}
return (m);
}
char *
map_dblookup(struct smtpd *env, char *mapname, char *keyname)
{
int ret;
DBT key;
DBT val;
DB *db;
struct map *map;
char *result = NULL;
map = map_findbyname(env, mapname);
if (map == NULL)
return NULL;
if (map->m_src != S_DB) {
log_warn("invalid map type for map \"%s\"", mapname);
return NULL;
}
db = dbopen(map->m_config, O_RDONLY, 0600, DB_HASH, NULL);
if (db == NULL) {
log_warn("map_dblookup: can't open %s", map->m_config);
return NULL;
}
key.data = keyname;
key.size = strlen(key.data) + 1;
if ((ret = db->get(db, &key, &val, 0)) == -1) {
log_warn("map_dblookup: map '%s'", mapname);
db->close(db);
return NULL;
}
if (ret == 0) {
result = calloc(val.size, 1);
if (result == NULL)
fatal("calloc");
(void)strlcpy(result, val.data, val.size);
}
db->close(db);
return ret == 0 ? result : NULL;
}
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