/*      $NetBSD: blocklist.c,v 1.4 2025/02/11 17:48:30 christos Exp $   */

/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#ifdef HAVE_SYS_CDEFS_H
#include <sys/cdefs.h>
#endif
__RCSID("$NetBSD: blocklist.c,v 1.4 2025/02/11 17:48:30 christos Exp $");

#include <stdio.h>
#include <bl.h>

#include <stdarg.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <syslog.h>

int
blocklist_sa(int action, int rfd, const struct sockaddr *sa, socklen_t salen,
   const char *msg)
{
       struct blocklist *bl;
       int rv;
       if ((bl = blocklist_open()) == NULL)
               return -1;
       rv = blocklist_sa_r(bl, action, rfd, sa, salen, msg);
       blocklist_close(bl);
       return rv;
}

int
blocklist_sa_r(struct blocklist *bl, int action, int rfd,
       const struct sockaddr *sa, socklen_t slen, const char *msg)
{
       bl_type_t internal_action;

       /* internal values are not the same as user application values */
       switch (action) {
       case BLOCKLIST_AUTH_FAIL:
               internal_action = BL_ADD;
               break;
       case BLOCKLIST_AUTH_OK:
               internal_action = BL_DELETE;
               break;
       case BLOCKLIST_ABUSIVE_BEHAVIOR:
               internal_action = BL_ABUSE;
               break;
       case BLOCKLIST_BAD_USER:
               internal_action = BL_BADUSER;
               break;
       default:
               internal_action = BL_INVALID;
               break;
       }
       return bl_send(bl, internal_action, rfd, sa, slen, msg);
}

int
blocklist(int action, int rfd, const char *msg)
{
       return blocklist_sa(action, rfd, NULL, 0, msg);
}

int
blocklist_r(struct blocklist *bl, int action, int rfd, const char *msg)
{
       return blocklist_sa_r(bl, action, rfd, NULL, 0, msg);
}

struct blocklist *
blocklist_open(void) {
       return bl_create(false, NULL, vsyslog_r);
}

struct blocklist *
blocklist_open2(
   void (*logger)(int, struct syslog_data *, const char *, va_list))
{
       return bl_create(false, NULL, logger);
}

void
blocklist_close(struct blocklist *bl)
{
       bl_destroy(bl);
}