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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: mptext-file.c,v 1.3 2004/04/08 01:36:15 mdw Exp $ |
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4 | * |
5 | * Reading and writing large integers on files |
6 | * |
7 | * (c) 1999 Straylight/Edgeware |
8 | */ |
9 | |
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10 | /*----- Licensing notice --------------------------------------------------* |
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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. |
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18 | * |
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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. |
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23 | * |
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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 | |
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30 | /*----- Header files ------------------------------------------------------*/ |
31 | |
32 | #include <stdio.h> |
33 | |
34 | #include "mptext.h" |
35 | |
36 | /*----- Main code ---------------------------------------------------------*/ |
37 | |
38 | /* --- Operations table --- */ |
39 | |
40 | static int get(void *p) { FILE *fp = p; return getc(fp); } |
41 | |
42 | static void unget(int ch, void *p) { FILE *fp = p; ungetc(ch, fp); } |
43 | |
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44 | static int put(const char *s, size_t sz, void *p) |
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45 | { |
46 | FILE *fp = p; |
47 | return (fwrite(s, 1, sz, fp) != sz); |
48 | } |
49 | |
50 | const mptext_ops mptext_fileops = { get, unget, put }; |
51 | |
52 | /* --- Convenience functions --- */ |
53 | |
54 | mp *mp_readfile(mp *m, FILE *fp, int radix) |
55 | { |
56 | return mp_read(m, radix, &mptext_fileops, fp); |
57 | } |
58 | |
59 | int mp_writefile(mp *m, FILE *fp, int radix) |
60 | { |
61 | return mp_write(m, radix, &mptext_fileops, fp); |
62 | } |
63 | |
64 | /*----- That's all, folks -------------------------------------------------*/ |