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- /***************************************************************************
- * Copyright (C) 2004, 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007,2008 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * 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)
- */
-
- /* inlining this will help show what fn that is taking time during profiling. */
- static inline void buf_set_u32(uint8_t* buffer, unsigned int first, unsigned int num, uint32_t value)
- {
- if ((num==32) && (first==0))
- {
- buffer[3]=(value >> 24)&0xff;
- buffer[2]=(value >> 16)&0xff;
- buffer[1]=(value >> 8)&0xff;
- buffer[0]=(value >> 0)&0xff;
- } else
- {
- unsigned int i;
-
- for (i=first; i<first+num; i++)
- {
- if (((value >> (i-first))&1) == 1)
- buffer[i/8] |= 1 << (i%8);
- else
- buffer[i/8] &= ~(1 << (i%8));
- }
- }
- }
- static inline uint32_t buf_get_u32(const uint8_t* buffer, unsigned int first, unsigned int num)
- {
- if ((num==32) && (first==0))
- {
- return (((uint32_t)buffer[3]) << 24)|(((uint32_t)buffer[2]) << 16)|(((uint32_t)buffer[1]) << 8)|(((uint32_t)buffer[0]) << 0);
- } else
- {
- uint32_t result = 0;
- unsigned int i;
-
- for (i=first; i<first+num; i++)
- {
- if (((buffer[i/8]>>(i%8))&1) == 1)
- result |= 1 << (i-first);
- }
-
- return result;
- }
- }
-
- extern uint32_t flip_u32(uint32_t value, unsigned int num);
-
- extern int buf_cmp(const uint8_t *buf1, const uint8_t *buf2, int size);
- extern int buf_cmp_mask(const uint8_t *buf1, const uint8_t *buf2, const uint8_t *mask, int size);
- extern uint8_t* buf_cpy(const uint8_t *from, uint8_t *to, int size);
-
- extern uint8_t* buf_set_ones(uint8_t *buf, int count);
- extern uint8_t* buf_set_buf(const uint8_t *src, int src_start, uint8_t *dst, int dst_start, int len);
-
- extern int str_to_buf(const char *str, int len, uint8_t *bin_buf, int buf_size, int radix);
- extern char* buf_to_str(const uint8_t *buf, int size, int radix);
-
- struct scan_field_s;
- extern int buf_to_u32_handler(uint8_t *in_buf, void *priv, struct scan_field_s *field);
-
- #define CEIL(m, n) ((m + n - 1) / n)
-
- /* read a uint32_t from a buffer in target memory endianness */
- static inline uint32_t fast_target_buffer_get_u32(const uint8_t *buffer, int little)
- {
- if (little)
- return le_to_h_u32(buffer);
- else
- return be_to_h_u32(buffer);
- }
-
- #endif /* BINARYBUFFER_H */
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