/*

 * Copyright (c) 1996,1999 by Internet Software Consortium.

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS

 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE

 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL

 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR

 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS

 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS

 * SOFTWARE.

 */

#include <sys/types.h>

#include <sys/socket.h>

#include <netinet/in.h>

#include <arpa/inet.h>

#include <errno.h>

#include <stdio.h>

#include <string.h>

#ifdef SPRINTF_CHAR

# define SPRINTF(x) strlen(sprintf/**/x)

#else

# define SPRINTF(x) ((size_t)sprintf x)

#endif

/*

 * char *

 * inet_neta(src, dst, size)

 *	format a u_long network number into presentation format.

 * return:

 *	pointer to dst, or NULL if an error occurred (check errno).

 * note:

 *	format of ``src'' is as for inet_network().

 * author:

 *	Paul Vixie (ISC), July 1996

 */

char *

inet_neta (uint32_t src, char *dst, size_t size)

{

	char *odst = dst;

	char *tp;

	while (src & 0xffffffff) {

		u_char b = (src & 0xff000000) >> 24;

		src <<= 8;

		if (b) {

			if (size < sizeof "255.")

				goto emsgsize;

			tp = dst;

			dst += SPRINTF((dst, "%u", b));

			if (src != 0L) {

				*dst++ = '.';

				*dst = '\0';

			}

			size -= (size_t)(dst - tp);

		}

	}

	if (dst == odst) {

		if (size < sizeof "0.0.0.0")

			goto emsgsize;

		strcpy(dst, "0.0.0.0");

	}

	return (odst);

 emsgsize:

	__set_errno (EMSGSIZE);

	return (NULL);

}