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Diffstat (limited to 'src/helper/binarybuffer.h')
| -rw-r--r-- | src/helper/binarybuffer.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/helper/binarybuffer.h b/src/helper/binarybuffer.h new file mode 100644 index 00000000..0a688945 --- /dev/null +++ b/src/helper/binarybuffer.h @@ -0,0 +1,48 @@ +/*************************************************************************** + * Copyright (C) 2004, 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * 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., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifndef BINARYBUFFER_H +#define BINARYBUFFER_H + +#include "types.h" + +/* support functions to access arbitrary bits in a byte array + * flip_u32 inverses the bit order inside a 32-bit word (31..0 -> 0..31) + */ + +extern int buf_set_u32(u8* buffer, unsigned int first, unsigned int num, u32 value); +extern u32 buf_get_u32(u8* buffer, unsigned int first, unsigned int num); + +extern u32 flip_u32(u32 value, unsigned int num); + +extern int buf_cmp(u8 *buf1, u8 *buf2, int size); +extern int buf_cmp_mask(u8 *buf1, u8 *buf2, u8 *mask, int size); +extern u8* buf_cpy(u8 *from, u8 *to, int size); + +extern u8* buf_set_ones(u8 *buf, int count); +extern u8* buf_set_buf(u8 *src, int src_start, u8 *dst, int dst_start, int len); + +extern char* buf_to_char(u8 *buf, int size); +extern int char_to_buf(char *buf, int len, u8 *bin_buf, int buf_size); + +extern int buf_to_u32_handler(u8 *in_buf, void *priv); + +#define CEIL(m, n) ((m + n - 1) / n) + +#endif /* BINARYBUFFER_H */ |