I am trying to develop a homebrew for nds that will need client-server packet transfers. I started using Palib and/or Nflib and I wasn't able to transfer info so (After many tries) I decided to modify the httpget example to find a way to transfer just a few bytes, the problem is that the following code works: #include <nds.h>
#include <dswifi9.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
void tosrv(char* url);
int main(void) {
consoleDemoInit();
if(!Wifi_InitDefault(WFC_CONNECT)) {
iprintf("Failed to connect!");
} else {
iprintf("Connected\n\n");
tosrv("xmultivers.servegame.com"); }
while(1) {
swiWaitForVBlank();
}
return 0;
}
void tosrv(char* url) {
const char * request_text =
" AB\n "
" "
" ";
struct hostent * myhost = gethostbyname( url );
int my_socket;
my_socket = socket( AF_INET, SOCK_STREAM, 0 );
struct sockaddr_in sain;
sain.sin_family = AF_INET;
sain.sin_port = htons(1078);
sain.sin_addr.s_addr= *( (unsigned long *)(myhost->h_addr_list[0]) );
connect( my_socket,(struct sockaddr *)&sain, sizeof(sain) );
send( my_socket, request_text, strlen(request_text), 0 );
iprintf( "Sent\n" );
shutdown(my_socket,0);
closesocket(my_socket);
iprintf ( "Finished\n" );
} But this other one doesn't work. #include <nds.h>
#include <dswifi9.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>
void tosrv(char* url);
int main(void) {
consoleDemoInit();
if(!Wifi_InitDefault(WFC_CONNECT)) {
iprintf("Failed to connect!");
} else {
iprintf("Connected\n\n");
tosrv("xmultivers.servegame.com"); }
while(1) {
swiWaitForVBlank();
}
return 0;
}
void tosrv(char* url) {
const char * request_text = "AB";
struct hostent * myhost = gethostbyname( url );
int my_socket;
my_socket = socket( AF_INET, SOCK_STREAM, 0 );
struct sockaddr_in sain;
sain.sin_family = AF_INET;
sain.sin_port = htons(1078);
sain.sin_addr.s_addr= *( (unsigned long *)(myhost->h_addr_list[0]) );
connect( my_socket,(struct sockaddr *)&sain, sizeof(sain) );
send( my_socket, request_text, strlen(request_text), 0 );
iprintf( "Sent\n" );
shutdown(my_socket,0);
closesocket(my_socket);
iprintf ( "Finished\n" );
} The server is writen in perl and works like a charm, the first code sends the packet (using too many bytes), the second code just opens the socket (the server registers a client connecting but doesn't get the packet). Gethostbyname resolves to a local ip address (by resolving a no-ip dns), I searched info about the minimal bytes that can be send with send() but didn't find any info.