UDP Trial

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <malloc.h>
#include <ogcsys.h>
#include <gccore.h>
#include <network.h>
#include <debug.h>
#include <errno.h>
#include <wiiuse/wpad.h>

static void *xfb = NULL;
static GXRModeObj *rmode = NULL;

void *initialise();
void *httpd (void *arg);

static  lwp_t httd_handle = (lwp_t)NULL;

//---------------------------------------------------------------------------------
int main(int argc, char **argv) {
//---------------------------------------------------------------------------------
    s32 ret;

    char localip[16] = {0};
    char gateway[16] = {0};
    char netmask[16] = {0};

    xfb = initialise();

    printf ("\nlibogc network demo\n");
    printf("Configuring network ...\n");

    // Configure the network interface
    ret = if_config ( localip, netmask, gateway, TRUE);
    if (ret>=0) {
        printf ("network configured, ip: %s, gw: %s, mask %s\n", localip, gateway, netmask);

        LWP_CreateThread(   &httd_handle,   /* thread handle */
                            httpd,          /* code */
                            localip,        /* arg pointer for thread */
                            NULL,           /* stack base */
                            16*1024,        /* stack size */
                            50              /* thread priority */ );
    } else {
        printf ("network configuration failed!\n");
    }

    while(1) {

        VIDEO_WaitVSync();
        WPAD_ScanPads();

        int buttonsDown = WPAD_ButtonsDown(0);

        if (buttonsDown & WPAD_BUTTON_HOME) {
            exit(0);
        }
    }

    return 0;
}

#define SRV_IP "192.168.1.130"
#define BUFLEN 512
#define NPACK 10
#define PORT 9930

//---------------------------------------------------------------------------------
void *httpd (void *arg) {
//---------------------------------------------------------------------------------

    s32 sock;
    struct sockaddr_in si_other;
    int  i, slen=sizeof(si_other);
    char buf[BUFLEN];

    sock = net_socket (AF_INET, SOCK_DGRAM, IPPROTO_IP);

    if (sock == INVALID_SOCKET) {
            printf ("Cannot create a socket!\n");
        } else {
        memset((char *) &si_other, 0, sizeof(si_other));
        si_other.sin_family = AF_INET;
        si_other.sin_port = htons(PORT);
        si_other.sin_len = 8;
        if ((si_other.sin_addr.s_addr = inet_addr(SRV_IP)) == 0) {
            fprintf(stderr, "inet_aton() failed\n");
        }else{
            for (i=0; i<NPACK; i++) {
                printf("Sending packet %d\n", i);
                sprintf(buf, "This is packet %d\n", i);
                int n;
                if((n = net_sendto(sock, buf, BUFLEN, 0, &si_other, 8)) < 0)
                    printf("Failed. %d.",n);
            }
            net_close (sock);
        }
    }
    return NULL;
}

//---------------------------------------------------------------------------------
void *initialise() {
//---------------------------------------------------------------------------------

    void *framebuffer;

    VIDEO_Init();
    WPAD_Init();

    rmode = VIDEO_GetPreferredMode(NULL);
    framebuffer = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
    console_init(framebuffer,20,20,rmode->fbWidth,rmode->xfbHeight,rmode->fbWidth*VI_DISPLAY_PIX_SZ);

    VIDEO_Configure(rmode);
    VIDEO_SetNextFramebuffer(framebuffer);
    VIDEO_SetBlack(FALSE);
    VIDEO_Flush();
    VIDEO_WaitVSync();
    if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync();

    return framebuffer;

}