| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Null codec implementation |
| 4 | * |
| 5 | * (c) 2009 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 9 | * |
| 10 | * This file is part of the mLib utilities library. |
| 11 | * |
| 12 | * mLib is free software; you can redistribute it and/or modify |
| 13 | * it under the terms of the GNU Library General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of the |
| 15 | * License, or (at your option) any later version. |
| 16 | * |
| 17 | * mLib is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU Library General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU Library General Public |
| 23 | * License along with mLib; if not, write to the Free |
| 24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 25 | * MA 02111-1307, USA. |
| 26 | */ |
| 27 | |
| 28 | /*----- Header files ------------------------------------------------------*/ |
| 29 | |
| 30 | #include <string.h> |
| 31 | |
| 32 | #include "codec.h" |
| 33 | #include "sub.h" |
| 34 | |
| 35 | /*----- Data structures ---------------------------------------------------*/ |
| 36 | |
| 37 | typedef struct null_codec { |
| 38 | codec c; |
| 39 | } null_codec; |
| 40 | |
| 41 | /*----- Main code ---------------------------------------------------------*/ |
| 42 | |
| 43 | static int encdec(codec *c, const void *p, size_t sz, dstr *d) |
| 44 | { DPUTM(d, p, sz); return (0); } |
| 45 | |
| 46 | static void destroy(codec *c) |
| 47 | { null_codec *nc = (null_codec *)c; DESTROY(nc); } |
| 48 | |
| 49 | static const codec_ops ops = { &null_codec_class, encdec, destroy }; |
| 50 | |
| 51 | static codec *encoder(unsigned flags, const char *indent, unsigned maxlen) |
| 52 | { |
| 53 | null_codec *nc = CREATE(null_codec); |
| 54 | nc->c.ops = &ops; |
| 55 | return (&nc->c); |
| 56 | } |
| 57 | |
| 58 | static codec *decoder(unsigned flags) |
| 59 | { |
| 60 | null_codec *nc = CREATE(null_codec); |
| 61 | nc->c.ops = &ops; |
| 62 | return (&nc->c); |
| 63 | } |
| 64 | |
| 65 | const codec_class null_codec_class = { "null", encoder, decoder }; |
| 66 | |
| 67 | /*----- That's all, folks -------------------------------------------------*/ |