ocaml/otherlibs/unix/strofaddr.c

75 lines
2.5 KiB
C

/**************************************************************************/
/* */
/* OCaml */
/* */
/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
/* */
/* Copyright 1996 Institut National de Recherche en Informatique et */
/* en Automatique. */
/* */
/* All rights reserved. This file is distributed under the terms of */
/* the GNU Lesser General Public License version 2.1, with the */
/* special exception on linking described in the file LICENSE. */
/* */
/**************************************************************************/
#include <caml/mlvalues.h>
#include <caml/alloc.h>
#include <caml/fail.h>
#include "unixsupport.h"
#ifdef HAS_SOCKETS
#include "socketaddr.h"
CAMLprim value unix_string_of_inet_addr(value a)
{
char * res;
#ifdef HAS_IPV6
#ifdef _WIN32
char buffer[64];
union sock_addr_union sa;
int len;
int retcode;
if (caml_string_length(a) == 16) {
memset(&sa.s_inet6, 0, sizeof(struct sockaddr_in6));
sa.s_inet6.sin6_family = AF_INET6;
sa.s_inet6.sin6_addr = GET_INET6_ADDR(a);
len = sizeof(struct sockaddr_in6);
} else {
memset(&sa.s_inet, 0, sizeof(struct sockaddr_in));
sa.s_inet.sin_family = AF_INET;
sa.s_inet.sin_addr = GET_INET_ADDR(a);
len = sizeof(struct sockaddr_in);
}
retcode = getnameinfo
(&sa.s_gen, len, buffer, sizeof(buffer), NULL, 0, NI_NUMERICHOST);
if (retcode != 0)
res = NULL;
else
res = buffer;
#else
char buffer[64];
if (caml_string_length(a) == 16)
res = (char *)
inet_ntop(AF_INET6, (const void *) &GET_INET6_ADDR(a),
buffer, sizeof(buffer));
else
res = (char *)
inet_ntop(AF_INET, (const void *) &GET_INET_ADDR(a),
buffer, sizeof(buffer));
#endif
#else
res = inet_ntoa(GET_INET_ADDR(a));
#endif
if (res == NULL) uerror("string_of_inet_addr", Nothing);
return caml_copy_string(res);
}
#else
CAMLprim value unix_string_of_inet_addr(value a)
{ caml_invalid_argument("string_of_inet_addr not implemented"); }
#endif