external/bsd/blacklist/lib/blacklist.c

   1 /*      $NetBSD: blacklist.c,v 1.5 2015/01/22 16:19:53 christos Exp $   */
   2
   3 /*-
   4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #ifdef HAVE_CONFIG_H
  32 #include "config.h"
  33 #endif
  34
  35 #include <sys/cdefs.h>
  36 __RCSID("$NetBSD: blacklist.c,v 1.5 2015/01/22 16:19:53 christos Exp $");
  37
  38 #include <stdio.h>
  39 #include <bl.h>
  40
  41 #include <stdarg.h>
  42 #include <errno.h>
  43 #include <string.h>
  44 #include <stdlib.h>
  45 #include <syslog.h>
  46
  47 int
  48 blacklist_sa(int action, int rfd, const struct sockaddr *sa, socklen_t salen,
  49     const char *msg)
  50 {
  51         struct blacklist *bl;
  52         int rv;
  53         if ((bl = blacklist_open()) == NULL)
  54                 return -1;
  55         rv = blacklist_sa_r(bl, action, rfd, sa, salen, msg);
  56         blacklist_close(bl);
  57         return rv;
  58 }
  59
  60 int
  61 blacklist_sa_r(struct blacklist *bl, int action, int rfd,
  62         const struct sockaddr *sa, socklen_t slen, const char *msg)
  63 {
  64         return bl_send(bl, action ? BL_ADD : BL_DELETE, rfd, sa, slen, msg);
  65 }
  66
  67 int
  68 blacklist(int action, int rfd, const char *msg)
  69 {
  70         return blacklist_sa(action, rfd, NULL, 0, msg);
  71 }
  72
  73 int
  74 blacklist_r(struct blacklist *bl, int action, int rfd, const char *msg)
  75 {
  76         return blacklist_sa_r(bl, action, rfd, NULL, 0, msg);
  77 }
  78
  79 struct blacklist *
  80 blacklist_open(void) {
  81         return bl_create(false, NULL, vsyslog);
  82 }
  83
  84 void
  85 blacklist_close(struct blacklist *bl)
  86 {
  87         bl_destroy(bl);
  88 }