145 lines
4.1 KiB
C
145 lines
4.1 KiB
C
/***********************************************************************/
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/* */
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/* OCaml */
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/* */
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/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
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/* */
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/* Copyright 1996 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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#include <string.h>
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#include <mlvalues.h>
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#include <alloc.h>
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#include <memory.h>
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#include <errno.h>
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#include "unixsupport.h"
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#ifdef HAS_SOCKETS
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#include "socketaddr.h"
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#ifdef _WIN32
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#define EAFNOSUPPORT WSAEAFNOSUPPORT
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#endif
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CAMLexport value alloc_inet_addr(struct in_addr * a)
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{
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value res;
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/* Use a string rather than an abstract block so that it can be
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marshaled safely. Remember that a is in network byte order,
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hence is marshaled in an endian-independent manner. */
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res = alloc_string(4);
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memcpy(String_val(res), a, 4);
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return res;
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}
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#ifdef HAS_IPV6
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CAMLexport value alloc_inet6_addr(struct in6_addr * a)
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{
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value res;
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res = alloc_string(16);
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memcpy(String_val(res), a, 16);
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return res;
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}
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#endif
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void get_sockaddr(value mladr,
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union sock_addr_union * adr /*out*/,
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socklen_param_type * adr_len /*out*/)
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{
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switch(Tag_val(mladr)) {
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#ifndef _WIN32
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case 0: /* ADDR_UNIX */
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{ value path;
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mlsize_t len;
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path = Field(mladr, 0);
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len = string_length(path);
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adr->s_unix.sun_family = AF_UNIX;
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if (len >= sizeof(adr->s_unix.sun_path)) {
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unix_error(ENAMETOOLONG, "", path);
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}
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memmove (adr->s_unix.sun_path, String_val(path), len + 1);
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*adr_len =
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((char *)&(adr->s_unix.sun_path) - (char *)&(adr->s_unix))
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+ len;
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break;
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}
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#endif
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case 1: /* ADDR_INET */
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#ifdef HAS_IPV6
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if (string_length(Field(mladr, 0)) == 16) {
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memset(&adr->s_inet6, 0, sizeof(struct sockaddr_in6));
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adr->s_inet6.sin6_family = AF_INET6;
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adr->s_inet6.sin6_addr = GET_INET6_ADDR(Field(mladr, 0));
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adr->s_inet6.sin6_port = htons(Int_val(Field(mladr, 1)));
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#ifdef SIN6_LEN
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adr->s_inet6.sin6_len = sizeof(struct sockaddr_in6);
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#endif
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*adr_len = sizeof(struct sockaddr_in6);
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break;
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}
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#endif
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memset(&adr->s_inet, 0, sizeof(struct sockaddr_in));
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adr->s_inet.sin_family = AF_INET;
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adr->s_inet.sin_addr = GET_INET_ADDR(Field(mladr, 0));
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adr->s_inet.sin_port = htons(Int_val(Field(mladr, 1)));
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#ifdef SIN6_LEN
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adr->s_inet.sin_len = sizeof(struct sockaddr_in);
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#endif
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*adr_len = sizeof(struct sockaddr_in);
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break;
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}
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}
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value alloc_sockaddr(union sock_addr_union * adr /*in*/,
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socklen_param_type adr_len, int close_on_error)
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{
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value res;
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switch(adr->s_gen.sa_family) {
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#ifndef _WIN32
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case AF_UNIX:
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{ value n = copy_string(adr->s_unix.sun_path);
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Begin_root (n);
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res = alloc_small(1, 0);
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Field(res,0) = n;
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End_roots();
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break;
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}
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#endif
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case AF_INET:
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{ value a = alloc_inet_addr(&adr->s_inet.sin_addr);
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Begin_root (a);
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res = alloc_small(2, 1);
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Field(res,0) = a;
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Field(res,1) = Val_int(ntohs(adr->s_inet.sin_port));
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End_roots();
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break;
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}
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#ifdef HAS_IPV6
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case AF_INET6:
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{ value a = alloc_inet6_addr(&adr->s_inet6.sin6_addr);
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Begin_root (a);
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res = alloc_small(2, 1);
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Field(res,0) = a;
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Field(res,1) = Val_int(ntohs(adr->s_inet6.sin6_port));
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End_roots();
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break;
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}
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#endif
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default:
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if (close_on_error != -1) close (close_on_error);
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unix_error(EAFNOSUPPORT, "", Nothing);
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}
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return res;
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}
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#endif
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