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/* Copyright (C) 1995,1996 Robert de Bath <rdebath@cix.compulink.co.uk>

 * This file is part of the Linux-8086 C library and is distributed

 * under the GNU Library General Public License.

 */

#include <string.h>

#include <ctype.h>

#include <netinet/in.h>

#ifdef L_inet_aton

int

inet_aton(cp, inp)

const char *cp;

struct in_addr *inp;

{

  unsigned long addr;

  int value;

  int part;

  if (!inp)

    return 0;

  addr = 0;

  for (part=1;part<=4;part++) {

    if (!isdigit(*cp))

      return 0;

    value = 0;

    while (isdigit(*cp)) {

      value *= 10;

      value += *cp++ - '0';

      if (value > 255)

        return 0;

    }

    if (*cp++ != ((part == 4) ? '\0' : '.'))

      return 0;

    addr <<= 8;

    addr |= value;

  }

  inp->s_addr = htonl(addr);

  return 1;

}

#endif

#ifdef L_inet_addr

unsigned long

inet_addr(cp)

const char *cp;

{

  struct in_addr a;

  if (!inet_aton(cp, &a))

    return -1;

  else

    return a.s_addr;

}

#endif

#ifdef L_inet_ntoa

extern char * itoa(int);

char *

inet_ntoa(in)

struct in_addr in;

{

  static char buf[18];

  unsigned long addr = ntohl(in.s_addr);

  strcpy(buf, itoa((addr >> 24) & 0xff));

  strcat(buf, ".");

  strcat(buf, itoa((addr >> 16) & 0xff));

  strcat(buf, ".");

  strcat(buf, itoa((addr >> 8) & 0xff));

  strcat(buf, ".");

  strcat(buf, itoa(addr & 0xff));

  return buf;

}

#endif