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Migrate hashing functions to C.

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Mahlon E. Smith 2017-05-12 16:17:41 -07:00
parent 7339802f34
commit c99bdfe747
10 changed files with 287 additions and 39 deletions
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ext/ezmlm/hash/hash.h Normal file
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#include <ruby.h>
static VALUE rb_mEzmlm;
static VALUE rb_cEZHash;
#ifndef SURF_H
#define SURF_H
#define ROTATE(x,b) (((x) << (b)) | ((x) >> (32 - (b))))
#define MUSH(i,b) x = t[i] += (((x ^ seed[i]) + sum) ^ ROTATE(x,b));
typedef struct {
unsigned int seed[32];
unsigned int sum[8];
unsigned int out[8];
unsigned int in[12];
int todo;
} surfpcs;
static const unsigned int littleendian[8] = {
0x03020100, 0x07060504, 0x0b0a0908, 0x0f0e0d0c,
0x13121110, 0x17161514, 0x1b1a1918, 0x1f1e1d1c
} ;
#define end ((unsigned char *) &littleendian)
#define data ((unsigned char *) s->in)
#define outdata ((unsigned char *) s->out)
extern void surf( unsigned int out[8], const unsigned int in[12], const unsigned int seed[32] );
extern void surfpcs_init( surfpcs *s, const unsigned int k[32] );
extern void surfpcs_add( surfpcs *s, const char *x,unsigned int n );
extern void surfpcs_addlc( surfpcs *s, const char *x,unsigned int n );
extern void surfpcs_out( surfpcs *s, unsigned char h[32] );
#endif
#ifndef SUBHASH_H
#define SUBHASH_H
unsigned int subhashs(const char *s);
unsigned int subhashb(const char *s,long len);
#define subhashsa(SA) subhashb((SA)->s,(SA)->len)
#endif