76 lines
2.8 KiB
C
76 lines
2.8 KiB
C
/* $OpenBSD: util.h,v 1.3 2002/05/23 10:22:14 deraadt Exp $ */
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/*
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* Copyright (c) 1996-2001
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* Obtuse Systems Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the Obtuse Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL OBTUSE SYSTEMS CORPORATION OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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struct proxy_channel {
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int pc_to_fd, pc_from_fd;
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int pc_alive;
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int pc_nextbyte;
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int pc_flags;
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int pc_length;
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int pc_size;
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struct sockaddr_in pc_from_sa, pc_to_sa;
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int (*pc_filter)( void ** databuf, int datalen);
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char *pc_buffer;
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};
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struct csiob {
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int fd;
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int line_buffer_size, io_buffer_size, io_buffer_len, next_byte;
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unsigned char *io_buffer, *line_buffer;
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struct sockaddr_in sa, real_sa;
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char *who;
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char alive, got_eof, data_available;
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int send_oob_flags;
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};
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extern int telnet_getline(struct csiob *iobp,
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struct csiob *telnet_passthrough);
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extern int pf_get_proxy_env(int fd, struct sockaddr_in *server_sa_ptr,
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struct sockaddr_in *client_sa_ptr);
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extern int ipf_get_proxy_env(int fd, struct sockaddr_in *server_sa_ptr,
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struct sockaddr_in *client_sa_ptr);
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#if 0
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extern int ipf_tconnect(const char *extif, const int fd,
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const struct sockaddr *sock, socklen_t socklen);
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#endif
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extern int get_backchannel_socket(int type, int min_port, int max_port,
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int start_port, int direction, struct sockaddr_in *sap);
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extern int xfer_data(const char *what_read, int from_fd, int to_fd,
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struct in_addr from, struct in_addr to);
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extern char *ProgName;
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