plugins/netutils.h

   1 /******************************************************************************
   2 *
   3 * Nagios plugins net utilities include file
   4 *
   5 * License: GPL
   6 * Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)
   7 *
   8 * Last Modified: $Date$
   9 *
  10 * Description:
  11 *
  12 * This file contains common include files and function definitions
  13 * used in many of the plugins.
  14 *
  15 * License Information:
  16 *
  17 * This program is free software; you can redistribute it and/or modify
  18 * it under the terms of the GNU General Public License as published by
  19 * the Free Software Foundation; either version 2 of the License, or
  20 * (at your option) any later version.
  21 *
  22 * This program is distributed in the hope that it will be useful,
  23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25 * GNU General Public License for more details.
  26 *
  27 * You should have received a copy of the GNU General Public License
  28 * along with this program; if not, write to the Free Software
  29 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30 *
  31 * $Id$
  32 *
  33 ******************************************************************************/
  34
  35 #ifndef _NETUTILS_H_
  36 #define _NETUTILS_H_
  37
  38 #include "common.h"
  39 #include "utils.h"
  40 #include <netinet/in.h>
  41 #include <arpa/inet.h>
  42 #include "getaddrinfo.h"
  43
  44 #ifdef HAVE_SYS_UN_H
  45 # include <sys/un.h>
  46 # ifndef UNIX_PATH_MAX
  47    /* linux uses this, on sun it's hard-coded at 108 without a define */
  48 #  define UNIX_PATH_MAX 108
  49 # endif /* UNIX_PATH_MAX */
  50 #endif /* HAVE_SYS_UN_H */
  51
  52 RETSIGTYPE socket_timeout_alarm_handler (int) __attribute__((noreturn));
  53
  54 /* process_request and wrapper macros */
  55 #define process_tcp_request(addr, port, sbuf, rbuf, rsize) \
  56         process_request(addr, port, IPPROTO_TCP, sbuf, rbuf, rsize)
  57 #define process_udp_request(addr, port, sbuf, rbuf, rsize) \
  58         process_request(addr, port, IPPROTO_UDP, sbuf, rbuf, rsize)
  59 int process_tcp_request2 (const char *address, int port,
  60   const char *sbuffer, char *rbuffer, int rsize);
  61 int process_request (const char *address, int port, int proto,
  62   const char *sbuffer, char *rbuffer, int rsize);
  63
  64 /* my_connect and wrapper macros */
  65 #define my_tcp_connect(addr, port, s) np_net_connect(addr, port, s, IPPROTO_TCP)
  66 #define my_udp_connect(addr, port, s) np_net_connect(addr, port, s, IPPROTO_UDP)
  67 int np_net_connect(const char *address, int port, int *sd, int proto);
  68
  69 /* send_request and wrapper macros */
  70 #define send_tcp_request(s, sbuf, rbuf, rsize) \
  71         send_request(s, IPPROTO_TCP, sbuf, rbuf, rsize)
  72 #define send_udp_request(s, sbuf, rbuf, rsize) \
  73         send_request(s, IPPROTO_UDP, sbuf, rbuf, rsize)
  74 int send_request (int sd, int proto, const char *send_buffer, char *recv_buffer, int recv_size);
  75
  76
  77 /* "is_*" wrapper macros and functions */
  78 int is_host (const char *);
  79 int is_addr (const char *);
  80 int resolve_host_or_addr (const char *, int);
  81 void host_or_die(const char *str);
  82 #define is_inet_addr(addr) resolve_host_or_addr(addr, AF_INET)
  83 #ifdef USE_IPV6
  84 #  define is_inet6_addr(addr) resolve_host_or_addr(addr, AF_INET6)
  85 #  define is_hostname(addr) resolve_host_or_addr(addr, address_family)
  86 #else
  87 #  define is_hostname(addr) resolve_host_or_addr(addr, AF_INET)
  88 #endif
  89
  90 extern unsigned int socket_timeout;
  91 extern int econn_refuse_state;
  92 extern int was_refused;
  93 extern int address_family;
  94
  95 /* SSL-Related functionality */
  96 #ifdef HAVE_SSL
  97 /* maybe this could be merged with the above np_net_connect, via some flags */
  98 int np_net_ssl_init(int sd);
  99 void np_net_ssl_cleanup();
 100 int np_net_ssl_write(const void *buf, int num);
 101 int np_net_ssl_read(void *buf, int num);
 102 int np_net_ssl_check_cert(int days_till_exp);
 103 #endif /* HAVE_SSL */
 104
 105 #endif /* _NETUTILS_H_ */