d5fef735aa8c1926ec184d6cb11b5f2b9c1aeff8
[become] / src / tx.h
1 /* -*-c-*-
2 *
3 * $Id: tx.h,v 1.2 1997/08/04 10:24:26 mdw Exp $
4 *
5 * Transfer for keys and other large integers
6 *
7 * (c) 1997 Mark Wooding
8 */
9
10 /*----- Licensing notice --------------------------------------------------*
11 *
12 * This file is part of `become'
13 *
14 * `Become' is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * `Become' is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with `become'; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28
29 /*----- Revision history --------------------------------------------------*
30 *
31 * $Log: tx.h,v $
32 * Revision 1.2 1997/08/04 10:24:26 mdw
33 * Sources placed under CVS control.
34 *
35 * Revision 1.1 1997/07/21 13:47:43 mdw
36 * Initial revision
37 *
38 */
39
40 #ifndef TX_H
41 #define TX_H
42
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46
47 /*----- Required headers --------------------------------------------------*/
48
49 #include <stddef.h>
50
51 /*----- Functions provided ------------------------------------------------*/
52
53 /* --- @tx_getBits@ --- *
54 *
55 * Arguments: @unsigned char *k@ = pointer to key array to unpack into
56 * @size_t sz@ = number of bits to read (elements in array)
57 * @FILE *fp@ = stream to read from
58 *
59 * Returns: ---
60 *
61 * Use: Reads a number of bits into an array. The least significant
62 * bits of the final word are cleared to zero.
63 */
64
65 extern void tx_getBits(unsigned char */*k*/, size_t /*sz*/, FILE */*fp*/);
66
67 /* --- @tx_putBits@ --- *
68 *
69 * Arguments: @unsigned char *k@ = pointer to key block
70 * @size_t sz@ = number of bits to write
71 * @FILE *fp@ = pointer to stream to write on
72 *
73 * Returns: ---
74 *
75 * Use: Complements @tx_getBits@ above. Writes a number of bits
76 * to a file in an easy-to-read and transportable format (hex!)
77 */
78
79 extern void tx_putBits(unsigned char */*k*/, size_t /*sz*/, FILE */*fp*/);
80
81 /*----- That's all, folks -------------------------------------------------*/
82
83 #ifdef __cplusplus
84 }
85 #endif
86
87 #endif