tinyproxy/src/sock.h
rofl0r f6d4da5d81 do hostname resolution only when it is absolutely necessary for ACL check
tinyproxy used to do a full hostname resolution whenever a new client
connection happened, which could cause very long delays (as reported in #198).

there's only a single place/scenario that actually requires a hostname, and
that is when an Allow/Deny rule exists for a hostname or domain, rather than
a raw IP address. since it is very likely this feature is not very widely used,
it makes absolute sense to only do the costly resolution when it is unavoidable.
2019-12-21 00:43:45 +00:00

49 lines
1.6 KiB
C

/* tinyproxy - A fast light-weight HTTP proxy
* Copyright (C) 1998 Steven Young <sdyoung@miranda.org>
* Copyright (C) 1999, 2004 Robert James Kaes <rjkaes@users.sourceforge.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/* See 'sock.c' for detailed information. */
#ifndef TINYPROXY_SOCK_H
#define TINYPROXY_SOCK_H
/* The IP length is set to 48, since IPv6 can be that long */
#define IP_LENGTH 48
#define HOSTNAME_LENGTH 1024
#define MAXLINE (1024 * 4)
#include "common.h"
#include "vector.h"
union sockaddr_union {
struct sockaddr_in v4;
struct sockaddr_in6 v6;
};
extern int opensock (const char *host, int port, const char *bind_to);
extern int listen_sock (const char *addr, uint16_t port, vector_t listen_fds);
extern int socket_nonblocking (int sock);
extern int socket_blocking (int sock);
extern int getsock_ip (int fd, char *ipaddr);
extern void getpeer_information (union sockaddr_union *addr, char *ipaddr, size_t ipaddr_len);
#endif