libowfat/scan/scan_xlong.c

14 lines
266 B
C

#include "scan.h"
size_t scan_xlong(const char *src,unsigned long *dest) {
register const char *tmp=src;
register unsigned long l=0;
register unsigned char c;
while ((c=scan_fromhex(*tmp))<16) {
l=(l<<4)+c;
++tmp;
}
*dest=l;
return tmp-src;
}