/* $Id: inet_pton.c,v 1.2 2002/09/05 22:20:32 stefan Exp $ */
#include <errno.h>
#include <stdio.h>
#include <string.h>

#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif

#if !defined(_WIN32)
#define _POSIX_C_SOURCE 199506L
#define _XOPEN_SOURCE_EXTENDED

#if defined(HAVE_SYS_TYPES_H)
#include <sys/types.h>
#endif
#if defined(HAVE_SYS_SOCKET_H)
#include <sys/socket.h>
#endif
#else
#include <winsock2.h>
#endif

#include "missing.h"

int
inet_pton(int af, const char *src, void *dst)
{
    unsigned int    u[4];
    unsigned char   *p = dst;
    char            ch;
    int             i;

    if (af != AF_INET)
    {
        errno = EAFNOSUPPORT;
        return -1;
    }

    if (sscanf(src, "%3u.%3u.%3u.%3u%c", &u[0], &u[1], &u[2], &u[3],
        &ch) != 4 || u[0] > 255 || u[1] > 255 || u[2] > 255 || u[3] > 255)
    {
        return 0;
    }

    for (i = 0; i < 4; i++)
    {
        p[i] = u[i];
    }

    return 1;
}