1 #include "stdinc.h"
2 #include "dat.h"
3 #include "fns.h"
4 
5 u8int zeroscore[VtScoreSize];
6 
7 /* Call this function to force linking of score.o for zeroscore on OS X */
8 void needzeroscore(void) { }
9 
10 void
11 scoremem(u8int *score, u8int *buf, int n)
12 {
13 	DigestState s;
14 
15 	memset(&s, 0, sizeof s);
16 	sha1(buf, n, score, &s);
17 }
18 
19 static int
20 hexv(int c)
21 {
22 	if(c >= '0' && c <= '9')
23 		return c - '0';
24 	if(c >= 'a' && c <= 'f')
25 		return c - 'a' + 10;
26 	if(c >= 'A' && c <= 'F')
27 		return c - 'A' + 10;
28 	return -1;
29 }
30 
31 int
32 strscore(char *s, u8int *score)
33 {
34 	int i, c, d;
35 
36 	for(i = 0; i < VtScoreSize; i++){
37 		c = hexv(s[2 * i]);
38 		if(c < 0)
39 			return -1;
40 		d = hexv(s[2 * i + 1]);
41 		if(d < 0)
42 			return -1;
43 		score[i] = (c << 4) + d;
44 	}
45 	return s[2 * i] == '\0';
46 }