Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 5 | * |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 6 | * As far as I am concerned, the code I have written for this software |
| 7 | * can be used freely for any purpose. Any derived versions of this |
| 8 | * software must be clearly marked as such, and if the derived work is |
| 9 | * incompatible with the protocol description in the RFC file, it must be |
| 10 | * called by a name other than "ssh" or "Secure Shell". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 11 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 12 | |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 13 | /* RCSID("$OpenBSD: bufaux.h,v 1.12 2001/06/26 06:32:48 itojun Exp $"); */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 14 | |
| 15 | #ifndef BUFAUX_H |
| 16 | #define BUFAUX_H |
| 17 | |
| 18 | #include "buffer.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 19 | #include <openssl/bn.h> |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 20 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 21 | /* |
| 22 | * Stores an BIGNUM in the buffer with a 2-byte msb first bit count, followed |
| 23 | * by (bits+7)/8 bytes of binary data, msb first. |
| 24 | */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 25 | void buffer_put_bignum(Buffer *, BIGNUM *); |
| 26 | void buffer_put_bignum2(Buffer *, BIGNUM *); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 27 | |
| 28 | /* Retrieves an BIGNUM from the buffer. */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 29 | int buffer_get_bignum(Buffer *, BIGNUM *); |
| 30 | int buffer_get_bignum2(Buffer *, BIGNUM *); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 31 | |
| 32 | /* Returns an integer from the buffer (4 bytes, msb first). */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 33 | u_int buffer_get_int(Buffer *); |
Ben Lindstrom | 16a86be | 2001-01-23 16:26:52 +0000 | [diff] [blame] | 34 | #ifdef HAVE_U_INT64_T |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 35 | u_int64_t buffer_get_int64(Buffer *); |
Ben Lindstrom | 16a86be | 2001-01-23 16:26:52 +0000 | [diff] [blame] | 36 | #endif |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 37 | |
| 38 | /* Stores an integer in the buffer in 4 bytes, msb first. */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 39 | void buffer_put_int(Buffer *, u_int); |
Ben Lindstrom | 16a86be | 2001-01-23 16:26:52 +0000 | [diff] [blame] | 40 | #ifdef HAVE_U_INT64_T |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 41 | void buffer_put_int64(Buffer *, u_int64_t); |
Ben Lindstrom | 16a86be | 2001-01-23 16:26:52 +0000 | [diff] [blame] | 42 | #endif |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 43 | |
| 44 | /* Returns a character from the buffer (0 - 255). */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 45 | int buffer_get_char(Buffer *); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 46 | |
| 47 | /* Stores a character in the buffer. */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 48 | void buffer_put_char(Buffer *, int); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 49 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 50 | /* |
| 51 | * Returns an arbitrary binary string from the buffer. The string cannot be |
| 52 | * longer than 256k. The returned value points to memory allocated with |
| 53 | * xmalloc; it is the responsibility of the calling function to free the |
| 54 | * data. If length_ptr is non-NULL, the length of the returned data will be |
| 55 | * stored there. A null character will be automatically appended to the |
| 56 | * returned string, and is not counted in length. |
| 57 | */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 58 | char *buffer_get_string(Buffer *, u_int *); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 59 | |
| 60 | /* Stores and arbitrary binary string in the buffer. */ |
Ben Lindstrom | 16ae3d0 | 2001-07-04 04:02:36 +0000 | [diff] [blame] | 61 | void buffer_put_string(Buffer *, const void *, u_int); |
| 62 | void buffer_put_cstring(Buffer *, const char *); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 63 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 64 | #endif /* BUFAUX_H */ |