gethostbyname fails always

Hi.. I'm having some problems with some network code, I was wondering if I missed anything. I copied some network init code from examples and posts on this forum, but I'm not sure if I'm initializing correctly, because net_gethostbyname fails always, even when the lookup string is "192.168.1.1". Here's what I have:

RFD_RemoteOps* rfd_tcp_client_create(const char* p_host, int p_port) {

	s32 result = net_init();
	while ( result == -EAGAIN ) {
		printf(".");
		usleep(100000);
		result = net_init();
	}
	printf("\n");
	if ( result < 0 ) {
		printf("net_init Failed with code %i.\n", result );
		return NULL;
	}

	char            localip[16];
	char            gateway[16];
	char            netmask[16];

	s32 ifcfg = if_config ( localip, netmask, gateway, TRUE);
	if (ifcfg>=0) {
		printf ("network configured, ip: %s, gw: %s, mask %s\n", localip, gateway, netmask);
	} else {
		printf("if_config failed with code %i\n", ifcfg);
		return NULL;
	}

	struct hostent *he;
	printf("looking up host %s\n", p_host);
	if ( (he=net_gethostbyname(p_host)) == NULL) {  // get the host info
		printf("gethostbyname failed!\n");
		return NULL;
	}

	[...]
}

net_gethostbyname fails always, and when I print the results from if_config, 'localip' is fine, but the other two ('gateway' and 'netmask') look like garbage.

am I missing anything? is this stuff documented anywhere?

thanks



Edited 1 time(s). Last edit at 06/30/2009 09:30PM by punto.

Are you sure the "p_host" contains the correct value. I've used this function before and it works great. Here's my code, you can see if it works for you.

	char* getipbyname(char *domain)
	{
		struct hostent *host = 0;

		host = net_gethostbyname(domain);

		if(host == NULL) 
                  return 0;

		struct sockaddr_in tmp;

		memcpy(&tmp.sin_addr,host->h_addr_list[0],host->h_length);


		return inet_ntoa(tmp.sin_addr);
	};

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scanff
Are you sure the "p_host" contains the correct value.

I'm printing it, it looks good. I also tried hardcoding the ip on the gethostbyname call, same result.

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scanff
I've used this function before and it works great. Here's my code, you can see if it works for you.

what do you use to initialize the network?

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what do you use to initialize the network?

Pretty much the same as your code.

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I'm printing it, it looks good. I also tried hardcoding the ip on the gethostbyname call, same result.

Give me an example of what your passing it. gethostbyname takes a domain name not an IP, something like "www.yahoo.com"

I think possibly my sample might help you. My project is pretty much dead in the water but at least that code should be a good example for how to use some of the libogc network functionality.

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scanff
gethostbyname takes a domain name not an IP, something like "www.yahoo.com"

yeah, that's the bug actually. gethostbyname is supposed to take ips too (like "192.168.1.1")

Quote
punto

Quote
scanff
gethostbyname takes a domain name not an IP, something like "www.yahoo.com"

yeah, that's the bug actually. gethostbyname is supposed to take ips too (like "192.168.1.1")

I never knew that. I've always used a name. Maybe there is a bug in the network code.

Here's a link to the source code for net_gethostbyname. Maybe you can figure it out from there.

[devkitpro.svn.sourceforge.net]