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/*
* Adopted from mcrcon, Copyright (c) 2012-2020, Tiiffi <tiiffi at gmail>.
* https://github.com/Tiiffi/mcrcon/tree/b02201d689b3032bc681b28f175fd3d83d167293
*/
#include "net.h"
#include "common.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <sysexits.h>
#include <unistd.h>
int net_connect(const char *host, const char *port, int *out)
{
int sd;
struct addrinfo hints;
struct addrinfo *server_info, *p;
memset(&hints, 0, sizeof hints);
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
int ret = getaddrinfo(host, port, &hints, &server_info);
if(ret)
{
fprintf(stderr, _("Cannot resolve host %s: %s.\n"), host, strerror(ret));
return EX_IOERR;
}
for (p = server_info; p != NULL; p = p->ai_next)
{
sd = socket(p->ai_family, p->ai_socktype, p->ai_protocol);
if (sd == -1) continue;
ret = connect(sd, p->ai_addr, p->ai_addrlen);
if(ret == -1)
{
close(sd);
continue;
}
break;
}
if(p == NULL)
{
fprintf(stderr, _("Cannot connect to %s:%s : %s.\n"), host, port, strerror(errno));
freeaddrinfo(server_info);
return EX_IOERR;
}
freeaddrinfo(server_info);
*out = sd;
return 0;
}
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