• FrankLike (30/30) Apr 05 2019 Hi,everyone,
• FrankLike (27/28) Apr 05 2019 Do you have some better code than this?

FrankLike <1150015857 qq.com> writes:

Hi,everyone,

How to test that the IP port is reachable?

In C,you can do this like that, what should I do in D?

/* C Code*/
https://blog.csdn.net/zhangyingchuang/article/details/51957552

#include <stdio.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>    /* inet(3) functions */

#define bool int
#define false 0
#define true 1

bool checkIPandPort(const char* ip, const char* port) {
    struct sockaddr_in addr;
    int fd = socket(AF_INET, SOCK_STREAM, 0);

    memset(&addr, 0, sizeof(addr));
    addr.sin_family = AF_INET;
    addr.sin_port = htons(atoi(port));
    addr.sin_addr.s_addr = inet_addr(ip);

    if (connect(fd, (struct sockaddr *) &addr, sizeof(struct 
sockaddr)) < 0) {
        printf("connect error \n");
        return false;
    }
    return true;
}
----------------------------------------------------------
But how to do it in D?
Thanks.

FrankLike <1150015857 qq.com> writes:

On Saturday, 6 April 2019 at 03:24:04 UTC, FrankLike wrote:
 Hi,everyone,...

Do you have some better code than this?
----------------------------------------------------------------
import std.stdio;
import std.socket;

void main()
{
	testIPPort();
}
bool testIPPort()
{
	try
	{
		auto results = 
getAddressInfo("127.0.0.1",AddressInfoFlags.NUMERICHOST);
		auto sock = new Socket(results[0]);
		auto address = getAddress("127.0.0.1",8080);
		sock.connect(address[0]);
		writeln(address," connect ok");
		return true;
	}
	catch(SocketException e)
	{	return false;
	}
}
---------------------------------------
Thanks.