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/* $Id: ip4atos.c,v 1.3 2003/04/03 18:05:22 mjt Exp $
* ip4atos() converts binary IP4 address into textual printable
* dotted-quad form.
*/
#include "ip4addr.h"
/* helper routine for ip4atos() */
static char *oct(char *s, unsigned char o, char e) {
if (o >= 100) {
*s++ = o / 100 + '0', o %= 100;
*s++ = o / 10 + '0', o %= 10;
}
else if (o >= 10)
*s++ = o / 10 + '0', o %= 10;
*s++ = o + '0';
*s++ = e;
return s;
}
/* return printable representation of ip4addr like inet_ntoa() */
const char *ip4atos(ip4addr_t a) {
static char buf[16];
oct(oct(oct(oct(buf,
(a >> 24) & 0xff, '.'),
(a >> 16) & 0xff, '.'),
(a >> 8) & 0xff, '.'),
a & 0xff, '\0');
return buf;
}
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