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#include "scan.h"
#include "ip4.h"
unsigned int ip4_scan(const char *s,char ip[4])
{
unsigned int i;
unsigned int len;
unsigned long u;
len = 0;
i = scan_ulong(s,&u); if (!i) return 0; ip[0] = u; s += i; len += i;
if (*s != '.') return 0; ++s; ++len;
i = scan_ulong(s,&u); if (!i) return 0; ip[1] = u; s += i; len += i;
if (*s != '.') return 0; ++s; ++len;
i = scan_ulong(s,&u); if (!i) return 0; ip[2] = u; s += i; len += i;
if (*s != '.') return 0; ++s; ++len;
i = scan_ulong(s,&u); if (!i) return 0; ip[3] = u; s += i; len += i;
return len;
}