diff options
author | Jakub Zawadzki <darkjames-ws@darkjames.pl> | 2013-11-16 09:16:57 +0000 |
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committer | Jakub Zawadzki <darkjames-ws@darkjames.pl> | 2013-11-16 09:16:57 +0000 |
commit | 3b9f6dfab4f4efe1d97450d1d69d1b37f822ad5f (patch) | |
tree | 8e5b80fcfb0adba8be49e4ba7ca51eb624864166 /wsutil | |
parent | 4f78d3c69b4c7356956381c5fe1e7b874ca04654 (diff) |
Move bitswap.[ch] from epan to wsutil.
svn path=/trunk/; revision=53365
Diffstat (limited to 'wsutil')
-rw-r--r-- | wsutil/CMakeLists.txt | 1 | ||||
-rw-r--r-- | wsutil/Makefile.common | 2 | ||||
-rw-r--r-- | wsutil/bitswap.c | 68 | ||||
-rw-r--r-- | wsutil/bitswap.h | 42 |
4 files changed, 113 insertions, 0 deletions
diff --git a/wsutil/CMakeLists.txt b/wsutil/CMakeLists.txt index c107aca54f..a2cc259fa5 100644 --- a/wsutil/CMakeLists.txt +++ b/wsutil/CMakeLists.txt @@ -39,6 +39,7 @@ set(WSUTIL_FILES adler32.c aes.c airpdcap_wep.c + bitswap.c crash_info.c crc10.c crc16.c diff --git a/wsutil/Makefile.common b/wsutil/Makefile.common index 2dd37efe05..4bf9cfa25f 100644 --- a/wsutil/Makefile.common +++ b/wsutil/Makefile.common @@ -32,6 +32,7 @@ LIBWSUTIL_SRC = \ adler32.c \ aes.c \ airpdcap_wep.c \ + bitswap.c \ crash_info.c \ crc6.c \ crc7.c \ @@ -65,6 +66,7 @@ LIBWSUTIL_INCLUDES = \ aes.h \ bits_ctz.h \ bits_count_ones.h \ + bitswap.h \ crash_info.h \ crc6.h \ crc7.h \ diff --git a/wsutil/bitswap.c b/wsutil/bitswap.c new file mode 100644 index 0000000000..bccbecf401 --- /dev/null +++ b/wsutil/bitswap.c @@ -0,0 +1,68 @@ +/* bitswap.c + * Table of bit-swapped values of bytes + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" + +#include <glib.h> + +#include "bitswap.h" + +/* "swaptab[i]" is the value of "i" with the bits reversed. */ +const guint8 +swaptab[256] = +{ + 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, + 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, + 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, + 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, + 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, + 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, + 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, + 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, + 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, + 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, + 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, + 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, + 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, + 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, + 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, + 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, + 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, + 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, + 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, + 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, + 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, + 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, + 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, + 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, + 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, + 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, + 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, + 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, + 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, + 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, + 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, + 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, +}; diff --git a/wsutil/bitswap.h b/wsutil/bitswap.h new file mode 100644 index 0000000000..bbf374b01e --- /dev/null +++ b/wsutil/bitswap.h @@ -0,0 +1,42 @@ +/* bitswap.h + * Macro to bitswap a byte by looking it up in a table + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __BITSWAP_H__ +#define __BITSWAP_H__ + +#include "ws_symbol_export.h" + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +WS_DLL_PUBLIC const guint8 swaptab[256]; + +#define BIT_SWAP(b) (swaptab[b]) + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* bitswap.h */ |