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334 B

#include "scan.h"
#include "ip4.h"
unsigned int scan_ip4(const char *s,char ip[4])
unsigned int len;
unsigned long u;
int i;
len = 0;
for (i=0; i<4; ++i) {
register unsigned int j;
if (!j) return 0;
ip[i]=u; s+=j;
if (i<3 && *s!='.') return 0; ++s;
return len-1;