ikarus/src/ikarus-getaddrinfo.c

70 lines
2.0 KiB
C

/*
* Ikarus Scheme -- A compiler for R6RS Scheme.
* Copyright (C) 2006,2007,2008 Abdulaziz Ghuloum
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#if (!HAVE_GETADDRINFO)
#include "ikarus-getaddrinfo.h"
#include <netdb.h>
#include <sys/socket.h>
#include <cygwin/in.h>
#include <string.h>
#include <stdio.h>
int
getaddrinfo(const char *hostname, const char* servname,
const struct addrinfo* hints, struct addrinfo** res){
/* hints not used */
struct servent* sent = getservbyname(servname, "tcp");
if (sent == 0) return -1;
struct hostent* hent = gethostbyname(hostname);
if (!hent){
return -1;
}
struct addrinfo* r = malloc(sizeof(struct addrinfo));
if(r == 0) return -1;
r->ai_family = hent->h_addrtype;
r->ai_socktype = SOCK_STREAM;
r->ai_protocol = 0;
r->ai_addrlen = sizeof(struct sockaddr_in);
r->ai_addr = malloc(r->ai_addrlen);
if (r->ai_addr == 0){
free(r);
return -1;
}
struct sockaddr_in* sa_in = (struct sockaddr_in *)r->ai_addr;
memset(sa_in, 0, sizeof(struct sockaddr_in));
sa_in->sin_family = PF_INET;
sa_in->sin_port = sent->s_port;
struct in_addr** ap = (struct in_addr **)hent->h_addr_list;
memcpy(&sa_in->sin_addr, *ap, sizeof(struct in_addr));
r->ai_next = NULL;
*res = r;
return 0;
}
void
freeaddrinfo(struct addrinfo *ai){
free(ai->ai_addr);
free(ai);
}
#endif