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/* |
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* Copyright (C) 2004- TeraTerm Project |
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* 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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* |
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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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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef BUFFER_H |
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#define BUFFER_H |
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|
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#include <openssl/bn.h> |
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#include <openssl/ec.h> |
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#include <zlib.h> |
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|
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typedef struct buffer { |
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char *buf; /* �o�b�t�@�������|�C���^�Brealloc()���������������B*/ |
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size_t offset; /* �����������o�����u */ |
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size_t maxlen; /* �o�b�t�@�������T�C�Y */ |
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size_t len; /* �o�b�t�@�����������L�����f�[�^�T�C�Y */ |
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} buffer_t; |
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|
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/* buffer_t.buf ���g���������l (16MB) */ |
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#define BUFFER_SIZE_MAX 0x1000000 |
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/* buffer_t.buf ���g�������������m�������� (32KB) */ |
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#define BUFFER_INCREASE_MARGIN (32*1024) |
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|
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void buffer_clear(buffer_t *buf); |
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buffer_t *buffer_init(void); |
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void buffer_free(buffer_t *buf); |
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void *buffer_append_space(buffer_t * buf, size_t size); |
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int buffer_append(buffer_t *buf, char *ptr, int size); |
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int buffer_append_length(buffer_t *msg, char *ptr, int size); |
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void buffer_put_raw(buffer_t *msg, char *ptr, int size); |
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char *buffer_get_string(char **data_ptr, int *buflen_ptr); |
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void buffer_put_string(buffer_t *msg, char *ptr, int size); |
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void buffer_put_cstring(buffer_t *msg, char *ptr); |
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void buffer_put_char(buffer_t *msg, int value); |
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void buffer_put_padding(buffer_t *msg, int size); |
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void buffer_put_int(buffer_t *msg, int value); |
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int buffer_len(buffer_t *msg); |
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char *buffer_ptr(buffer_t *msg); |
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void buffer_put_bignum(buffer_t *buffer, BIGNUM *value); |
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void buffer_put_bignum2(buffer_t *msg, BIGNUM *value); |
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void buffer_get_bignum2(char **data, BIGNUM *value); |
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void buffer_get_bignum2_msg(buffer_t *msg, BIGNUM *value); |
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void buffer_get_bignum_SECSH(buffer_t *buffer, BIGNUM *value); |
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void buffer_put_ecpoint(buffer_t *msg, const EC_GROUP *curve, const EC_POINT *point); |
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void buffer_get_ecpoint(char **data, const EC_GROUP *curve, EC_POINT *point); |
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void buffer_get_ecpoint_msg(buffer_t *msg, const EC_GROUP *curve, EC_POINT *point); |
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char *buffer_tail_ptr(buffer_t *msg); |
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int buffer_overflow_verify(buffer_t *msg, int len); |
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void buffer_consume(buffer_t *buf, size_t shift_byte); |
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void buffer_consume_end(buffer_t *buf, size_t shift_byte); |
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int buffer_compress(z_stream *zstream, char *payload, int len, buffer_t *compbuf); |
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int buffer_decompress(z_stream *zstream, char *payload, int len, buffer_t *compbuf); |
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int buffer_get_ret(buffer_t *msg, void *buf, size_t len); |
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int buffer_get_int_ret(unsigned int *ret, buffer_t *msg); |
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unsigned int buffer_get_int(buffer_t *msg); |
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int buffer_get_char_ret(char *ret, buffer_t *msg); |
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int buffer_get_char(buffer_t *msg); |
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void buffer_rewind(buffer_t *buf); |
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void *buffer_get_string_msg(buffer_t *msg, int *buflen_ptr); |
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int buffer_remain_len(buffer_t *msg); |
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|
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#endif /* BUFFER_H */ |
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