eabe072496
and introduced a transport.h header. * Fixed the blocking mode to only change behavior not the actual underlying socket mode so we now always work with non-blocking sockets. This also introduces a new rule of thumb in libssh2 code: we don't call the external function calls internally. We use the internal (non-blocking) ones! * libssh2_channel_receive_window_adjust2 was added and libssh2_channel_receive_window_adjust is now deprecated * Introduced "local" header files with prototypes etc for different parts instead of cramming everything into libssh2_priv.h. channel.h is the first.
81 lines
3.1 KiB
C
81 lines
3.1 KiB
C
#ifndef __LIBSSH2_TRANSPORT_H
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#define __LIBSSH2_TRANSPORT_H
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/* Copyright (C) 2007 The Written Word, Inc. All rights reserved.
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* Copyright (C) 2009 by Daniel Stenberg
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* Author: Daniel Stenberg <daniel@haxx.se>
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*
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* Redistribution and use in source and binary forms,
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* with or without modification, are permitted provided
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* that the following conditions are met:
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*
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* Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* Neither the name of the copyright holder nor the names
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* of any other contributors may be used to endorse or
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* promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file handles reading and writing to the SECSH transport layer. RFC4253.
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*/
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#include "libssh2_priv.h"
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/*
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* libssh2_transport_write
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*
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* Send a packet, encrypting it and adding a MAC code if necessary
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* Returns 0 on success, non-zero on failure.
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*
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* Returns PACKET_EAGAIN if it would block - and if it does so, you should
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* call this function again as soon as it is likely that more data can be
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* sent, and this function should then be called with the same argument set
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* (same data pointer and same data_len) until zero or failure is returned.
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*
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* NOTE: this function does not verify that 'data_len' is less than ~35000
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* which is what all implementations should support at least as packet size.
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* (RFC4253 section 6.1)
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*/
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int _libssh2_transport_write(LIBSSH2_SESSION * session, unsigned char *data,
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unsigned long data_len);
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/*
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* _libssh2_transport_read
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*
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* Collect a packet into the input brigade block only controls whether or not
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* to wait for a packet to start.
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*
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* Returns packet type added to input brigade (PACKET_NONE if nothing added),
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* or PACKET_FAIL on failure and PACKET_EAGAIN if it couldn't process a full
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* packet.
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*/
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/*
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* This function reads the binary stream as specified in chapter 6 of RFC4253
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* "The Secure Shell (SSH) Transport Layer Protocol"
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*/
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libssh2pack_t _libssh2_transport_read(LIBSSH2_SESSION * session);
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#endif /* __LIBSSH2_TRANSPORT_H */
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