mirror of
git://anongit.mindrot.org/openssh.git
synced 2024-11-25 11:38:10 +08:00
db255cad05
[bufaux.c buffer.h channels.c packet.c packet.h]
avoid extra malloc/copy/free when receiving data over the net;
~10% speedup for localhost-scp; ok djm@
87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* $OpenBSD: buffer.h,v 1.17 2008/05/08 06:59:01 markus Exp $ */
|
|
|
|
/*
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
* All rights reserved
|
|
* Code for manipulating FIFO buffers.
|
|
*
|
|
* As far as I am concerned, the code I have written for this software
|
|
* can be used freely for any purpose. Any derived versions of this
|
|
* software must be clearly marked as such, and if the derived work is
|
|
* incompatible with the protocol description in the RFC file, it must be
|
|
* called by a name other than "ssh" or "Secure Shell".
|
|
*/
|
|
|
|
#ifndef BUFFER_H
|
|
#define BUFFER_H
|
|
|
|
typedef struct {
|
|
u_char *buf; /* Buffer for data. */
|
|
u_int alloc; /* Number of bytes allocated for data. */
|
|
u_int offset; /* Offset of first byte containing data. */
|
|
u_int end; /* Offset of last byte containing data. */
|
|
} Buffer;
|
|
|
|
void buffer_init(Buffer *);
|
|
void buffer_clear(Buffer *);
|
|
void buffer_free(Buffer *);
|
|
|
|
u_int buffer_len(Buffer *);
|
|
void *buffer_ptr(Buffer *);
|
|
|
|
void buffer_append(Buffer *, const void *, u_int);
|
|
void *buffer_append_space(Buffer *, u_int);
|
|
|
|
int buffer_check_alloc(Buffer *, u_int);
|
|
|
|
void buffer_get(Buffer *, void *, u_int);
|
|
|
|
void buffer_consume(Buffer *, u_int);
|
|
void buffer_consume_end(Buffer *, u_int);
|
|
|
|
void buffer_dump(Buffer *);
|
|
|
|
int buffer_get_ret(Buffer *, void *, u_int);
|
|
int buffer_consume_ret(Buffer *, u_int);
|
|
int buffer_consume_end_ret(Buffer *, u_int);
|
|
|
|
#include <openssl/bn.h>
|
|
|
|
void buffer_put_bignum(Buffer *, const BIGNUM *);
|
|
void buffer_put_bignum2(Buffer *, const BIGNUM *);
|
|
void buffer_get_bignum(Buffer *, BIGNUM *);
|
|
void buffer_get_bignum2(Buffer *, BIGNUM *);
|
|
|
|
u_short buffer_get_short(Buffer *);
|
|
void buffer_put_short(Buffer *, u_short);
|
|
|
|
u_int buffer_get_int(Buffer *);
|
|
void buffer_put_int(Buffer *, u_int);
|
|
|
|
u_int64_t buffer_get_int64(Buffer *);
|
|
void buffer_put_int64(Buffer *, u_int64_t);
|
|
|
|
int buffer_get_char(Buffer *);
|
|
void buffer_put_char(Buffer *, int);
|
|
|
|
void *buffer_get_string(Buffer *, u_int *);
|
|
void *buffer_get_string_ptr(Buffer *, u_int *);
|
|
void buffer_put_string(Buffer *, const void *, u_int);
|
|
void buffer_put_cstring(Buffer *, const char *);
|
|
|
|
#define buffer_skip_string(b) \
|
|
do { u_int l = buffer_get_int(b); buffer_consume(b, l); } while (0)
|
|
|
|
int buffer_put_bignum_ret(Buffer *, const BIGNUM *);
|
|
int buffer_get_bignum_ret(Buffer *, BIGNUM *);
|
|
int buffer_put_bignum2_ret(Buffer *, const BIGNUM *);
|
|
int buffer_get_bignum2_ret(Buffer *, BIGNUM *);
|
|
int buffer_get_short_ret(u_short *, Buffer *);
|
|
int buffer_get_int_ret(u_int *, Buffer *);
|
|
int buffer_get_int64_ret(u_int64_t *, Buffer *);
|
|
void *buffer_get_string_ret(Buffer *, u_int *);
|
|
int buffer_get_char_ret(char *, Buffer *);
|
|
|
|
#endif /* BUFFER_H */
|