aa1082f2 |
1 | /* -*-c-*- |
2 | * |
3 | * $Id: ghash.h,v 1.1 1999/12/10 23:16:01 mdw Exp $ |
4 | * |
5 | * Generic hash function interface |
6 | * |
7 | * (c) 1999 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of Catacomb. |
13 | * |
14 | * Catacomb is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
18 | * |
19 | * Catacomb 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 Library General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with Catacomb; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: ghash.h,v $ |
33 | * Revision 1.1 1999/12/10 23:16:01 mdw |
34 | * Generic interface. |
35 | * |
36 | */ |
37 | |
38 | #ifndef CATACOMB_GHASH_H |
39 | #define CATACOMB_GHASH_H |
40 | |
41 | #ifdef __cplusplus |
42 | extern "C" { |
43 | #endif |
44 | |
45 | /*----- Header files ------------------------------------------------------*/ |
46 | |
47 | #include <stddef.h> |
48 | |
49 | /*----- Generic hash function interface -----------------------------------*/ |
50 | |
51 | typedef struct gchash_base { |
52 | const char *name; /* Name of the hash function */ |
53 | size_t hashsz; /* Size of output hash */ |
54 | } gchash_base; |
55 | |
56 | typedef struct ghash { |
57 | const struct ghash_ops *ops; /* Pointer to hash operations */ |
58 | } ghash; |
59 | |
60 | typedef struct ghash_ops { |
61 | const gchash_base *b; /* Pointer to basic information */ |
62 | void (*hash)(ghash */*h*/, const void */*p*/, size_t /*sz*/); /* Hash */ |
63 | void (*done)(ghash */*h*/, void */*buf*/); /* Write result */ |
64 | void (*destroy)(ghash */*h*/); /* Destroy hash block */ |
65 | } ghash_ops; |
66 | |
67 | typedef struct gchash { |
68 | gchash_base b; /* Basic bits of information */ |
69 | ghash *(*init)(void); /* Create a new hash instance */ |
70 | } gchash; |
71 | |
72 | /*----- That's all, folks -------------------------------------------------*/ |
73 | |
74 | #ifdef __cplusplus |
75 | } |
76 | #endif |
77 | |
78 | #endif |