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Annotation of src/usr.bin/ssh/buffer.h, Revision 1.16

1.16    ! deraadt     1: /* $OpenBSD: buffer.h,v 1.15 2006/04/16 00:48:52 djm Exp $ */
1.11      stevesk     2:
1.1       deraadt     3: /*
1.2       deraadt     4:  * Author: Tatu Ylonen <ylo@cs.hut.fi>
                      5:  * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
                      6:  *                    All rights reserved
                      7:  * Code for manipulating FIFO buffers.
1.4       markus      8:  *
1.6       deraadt     9:  * As far as I am concerned, the code I have written for this software
                     10:  * can be used freely for any purpose.  Any derived versions of this
                     11:  * software must be clearly marked as such, and if the derived work is
                     12:  * incompatible with the protocol description in the RFC file, it must be
                     13:  * called by a name other than "ssh" or "Secure Shell".
1.2       deraadt    14:  */
1.1       deraadt    15:
                     16: #ifndef BUFFER_H
                     17: #define BUFFER_H
                     18:
1.2       deraadt    19: typedef struct {
1.10      stevesk    20:        u_char  *buf;           /* Buffer for data. */
1.9       markus     21:        u_int    alloc;         /* Number of bytes allocated for data. */
                     22:        u_int    offset;        /* Offset of first byte containing data. */
                     23:        u_int    end;           /* Offset of last byte containing data. */
1.2       deraadt    24: }       Buffer;
1.13      markus     25:
1.9       markus     26: void    buffer_init(Buffer *);
                     27: void    buffer_clear(Buffer *);
                     28: void    buffer_free(Buffer *);
1.1       deraadt    29:
1.9       markus     30: u_int   buffer_len(Buffer *);
1.10      stevesk    31: void   *buffer_ptr(Buffer *);
1.9       markus     32:
1.10      stevesk    33: void    buffer_append(Buffer *, const void *, u_int);
                     34: void   *buffer_append_space(Buffer *, u_int);
1.15      djm        35:
                     36: int     buffer_check_alloc(Buffer *, u_int);
1.9       markus     37:
1.10      stevesk    38: void    buffer_get(Buffer *, void *, u_int);
1.9       markus     39:
                     40: void    buffer_consume(Buffer *, u_int);
                     41: void    buffer_consume_end(Buffer *, u_int);
                     42:
                     43: void     buffer_dump(Buffer *);
1.12      djm        44:
                     45: int     buffer_get_ret(Buffer *, void *, u_int);
                     46: int     buffer_consume_ret(Buffer *, u_int);
                     47: int     buffer_consume_end_ret(Buffer *, u_int);
1.16    ! deraadt    48:
        !            49: #include <openssl/bn.h>
        !            50:
        !            51: void    buffer_put_bignum(Buffer *, const BIGNUM *);
        !            52: void    buffer_put_bignum2(Buffer *, const BIGNUM *);
        !            53: void   buffer_get_bignum(Buffer *, BIGNUM *);
        !            54: void   buffer_get_bignum2(Buffer *, BIGNUM *);
        !            55:
        !            56: u_short        buffer_get_short(Buffer *);
        !            57: void   buffer_put_short(Buffer *, u_short);
        !            58:
        !            59: u_int  buffer_get_int(Buffer *);
        !            60: void    buffer_put_int(Buffer *, u_int);
        !            61:
        !            62: u_int64_t buffer_get_int64(Buffer *);
        !            63: void   buffer_put_int64(Buffer *, u_int64_t);
        !            64:
        !            65: int     buffer_get_char(Buffer *);
        !            66: void    buffer_put_char(Buffer *, int);
        !            67:
        !            68: void   *buffer_get_string(Buffer *, u_int *);
        !            69: void    buffer_put_string(Buffer *, const void *, u_int);
        !            70: void   buffer_put_cstring(Buffer *, const char *);
        !            71:
        !            72: #define buffer_skip_string(b) \
        !            73:     do { u_int l = buffer_get_int(b); buffer_consume(b, l); } while (0)
        !            74:
        !            75: int    buffer_put_bignum_ret(Buffer *, const BIGNUM *);
        !            76: int    buffer_get_bignum_ret(Buffer *, BIGNUM *);
        !            77: int    buffer_put_bignum2_ret(Buffer *, const BIGNUM *);
        !            78: int    buffer_get_bignum2_ret(Buffer *, BIGNUM *);
        !            79: int    buffer_get_short_ret(u_short *, Buffer *);
        !            80: int    buffer_get_int_ret(u_int *, Buffer *);
        !            81: int    buffer_get_int64_ret(u_int64_t *, Buffer *);
        !            82: void   *buffer_get_string_ret(Buffer *, u_int *);
        !            83: int    buffer_get_char_ret(char *, Buffer *);
1.1       deraadt    84:
1.2       deraadt    85: #endif                         /* BUFFER_H */