1 #include <u.h> 2 #include <libc.h> 3 #include <venti.h> 4 5 int vtparsescore(char * s,char ** prefix,uchar score[VtScoreSize])6vtparsescore(char *s, char **prefix, uchar score[VtScoreSize]) 7 { 8 int i, c; 9 char *buf, *colon; 10 11 if((colon = strchr(s, ':')) != nil) 12 buf = colon+1; 13 else 14 buf = s; 15 16 if(strlen(buf) != 2*VtScoreSize) 17 return -1; 18 19 memset(score, 0, VtScoreSize); 20 for(i=0; i<2*VtScoreSize; i++){ 21 if(buf[i] >= '0' && buf[i] <= '9') 22 c = buf[i] - '0'; 23 else if(buf[i] >= 'a' && buf[i] <= 'z') 24 c = buf[i] - 'a' + 10; 25 else if(buf[i] >= 'A' && buf[i] <= 'Z') 26 c = buf[i] - 'A' + 10; 27 else 28 return -1; 29 30 if((i & 1) == 0) 31 c <<= 4; 32 score[i>>1] |= c; 33 } 34 if(colon){ 35 *colon = 0; 36 if(prefix) 37 *prefix = s; 38 }else{ 39 if(prefix) 40 *prefix = nil; 41 } 42 return 0; 43 } 44