crc.c File Reference

#include <stdio.h>
#include "str.h"
#include "ut.h"
#include "crc.h"

Go to the source code of this file.

Defines
#define	OK   0
#define	ERROR   (-1)
#define	UPDC32(ch, crc)   (crc_32_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))
#define	UPDCIT(ch, crc)   (ccitt_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))
#define	UPDC16(ch, crc)   (crc_16_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))
Functions
unsigned short	crcitt_string_ex (char *s, int len, register unsigned short ccitt)
unsigned short	crcitt_string (char *s, int len)
void	crcitt_string_array (char *dst, str src[], int size)
int	crc32file (char *name)
Variables
unsigned long int	crc_32_tab []
unsigned short int	ccitt_tab []
unsigned short int	crc_16_tab []

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Define Documentation

#define ERROR   (-1)

Definition at line 37 of file crc.c.

#define OK   0

Definition at line 36 of file crc.c.

#define UPDC16 (  ch, crc   )     (crc_16_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))

Definition at line 40 of file crc.c. Referenced by crc32file().

#define UPDC32 (  ch, crc   )     (crc_32_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))

Definition at line 38 of file crc.c. Referenced by crc32file().

#define UPDCIT (  ch, crc   )     (ccitt_tab[((crc) ^ (ch)) & 0xff] ^ ((crc) >> 8))

Definition at line 39 of file crc.c. Referenced by crc32file(), crcitt_string_array(), and crcitt_string_ex().

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Function Documentation

int crc32file (  char *  name  )

Definition at line 255 of file crc.c. References UPDC16, UPDC32, and UPDCIT.

unsigned short crcitt_string (  char *  s, int  len )

Definition at line 217 of file crc.c. References crcitt_string_ex(), len, and s. Referenced by mod_init().

void crcitt_string_array (  char *  dst, str  src[], int  size )

Definition at line 222 of file crc.c. References int2reverse_hex(), L_CRIT, len, _str::len, LOG, _str::s, str, str_len, and UPDCIT. Referenced by calc_crc_suffix(), and generate_fromtag().

unsigned short crcitt_string_ex (  char *  s, int  len, register unsigned short  ccitt )

Definition at line 208 of file crc.c. References len, s, and UPDCIT. Referenced by crcitt_string(), rr_get_avp_cookies(), and rr_set_avp_cookies().

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Variable Documentation

unsigned short int ccitt_tab[]

Definition at line 138 of file crc.c. Referenced by new_hash().

unsigned short int crc_16_tab[]

Definition at line 173 of file crc.c. Referenced by new_hash().

unsigned long int crc_32_tab[]

Definition at line 92 of file crc.c.

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