src/env.c

/*
 *   stunnel       TLS offloading and load-balancing proxy
 *   Copyright (C) 1998-2015 Michal Trojnara <Michal.Trojnara@mirt.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, see <http://www.gnu.org/licenses>.
 *
 *   Linking stunnel statically or dynamically with other modules is making
 *   a combined work based on stunnel. Thus, the terms and conditions of
 *   the GNU General Public License cover the whole combination.
 *
 *   In addition, as a special exception, the copyright holder of stunnel
 *   gives you permission to combine stunnel with free software programs or
 *   libraries that are released under the GNU LGPL and with code included
 *   in the standard release of OpenSSL under the OpenSSL License (or
 *   modified versions of such code, with unchanged license). You may copy
 *   and distribute such a system following the terms of the GNU GPL for
 *   stunnel and the licenses of the other code concerned.
 *
 *   Note that people who make modified versions of stunnel are not obligated
 *   to grant this special exception for their modified versions; it is their
 *   choice whether to do so. The GNU General Public License gives permission
 *   to release a modified version without this exception; this exception
 *   also makes it possible to release a modified version which carries
 *   forward this exception.
 */

/* getpeername() can't be declared in the following includes */
#define getpeername no_getpeername
#include <sys/types.h>
#include <sys/socket.h> /* for AF_INET */
#include <netinet/in.h>
#include <arpa/inet.h>  /* for inet_addr() */
#include <stdlib.h>     /* for getenv() */
#ifdef __BEOS__
#include <be/bone/arpa/inet.h> /* for AF_INET */
#include <be/bone/sys/socket.h> /* for AF_INET */
#else
#include <sys/socket.h> /* for AF_INET */
#endif
#undef getpeername

int getpeername(int s, struct sockaddr_in *name, int *len) {
    char *value;

    (void)s; /* skip warning about unused parameter */
    (void)len; /* skip warning about unused parameter */
    name->sin_family=AF_INET;
    if((value=getenv("REMOTE_HOST")))
        name->sin_addr.s_addr=inet_addr(value);
    else
        name->sin_addr.s_addr=htonl(INADDR_ANY);
    if((value=getenv("REMOTE_PORT")))
        name->sin_port=htons((uint16_t)atoi(value));
    else
        name->sin_port=htons(0); /* dynamic port allocation */
    return 0;
}

/* end of env.c */