Problems with downloading a file with devkitPro (Wii) - c++

Question

i found this code online that should download a file to my usb plugged into my wii, however, i found it only works with http or www domains, which means i cant download a file from my github.io website. i really could not find any useful examples or documentation. is there any good documentation or examples i could use to my advantage?
my code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <gccore.h>
#include <wiiuse/wpad.h>
#include <fat.h>
#include <network.h>
#define textPos(x, y) printf("\x1b[%d;%dH", y, x)
static void *xfb = NULL;
static GXRModeObj *rmode = NULL;
void initText();
void loop();
bool init_network();
int main(int argc, char **argv)
{
struct sockaddr_in sin;
struct hostent *dns;
VIDEO_Init();
WPAD_Init();
initText();
bool init = init_network();
char host[64] = "jawa2401.github.io";
textPos(1, 1);
printf("Network: %d\n", init);
s32 sock = net_socket(AF_INET, SOCK_STREAM, 0);
printf("Socket: %d\n", sock);
dns = net_gethostbyname(host);
printf("Dedicated Nameservers: %d\n", sizeof(dns->h_addr_list));
int f = fatInitDefault();
memcpy(&sin.sin_addr.s_addr, dns->h_addr, dns->h_length);
sin.sin_family = AF_INET;
sin.sin_port = htons(80);
printf("Setting up sockaddr_in...\n");
s32 c = net_connect(sock, (struct sockaddr *)&sin, sizeof(sin));
printf("Connecting: %d\n", c);
int size = 0x800;
char reponse[size];
char requete[128];
sprintf(requete, "GET /robots.txt HTTP/1.1\r\nHost: %s\r\nAccept: */*\r\n", host);
printf("Sending GET Request: %s\n", requete);
s32 r = net_send(sock, requete, sizeof(requete), 0);
printf("GET Request Returned: %d\n", r);
printf("Preparing for FAT write: %d\n", f);
printf("memset");
memset(reponse, 0, size);
s32 rec = net_recv(sock, reponse, size, 8);
printf("Receiving: %d\n", rec);
FILE *za = fopen("/resp.dat", "wb");
printf("Writing file.... (fat -> %d)\n", f);
int fw = fwrite(reponse, sizeof(u8), sizeof(reponse), za);
fclose(za);
printf("File written: %d", fw);
loop();
return 0;
}
void initText()
{
rmode = VIDEO_GetPreferredMode(NULL);
xfb = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));
console_init(xfb, 20, 20, rmode->fbWidth, rmode->xfbHeight, rmode->fbWidth * VI_DISPLAY_PIX_SZ);
VIDEO_Configure(rmode);
VIDEO_SetNextFramebuffer(xfb);
VIDEO_SetBlack(FALSE);
VIDEO_Flush();
VIDEO_WaitVSync();
if (rmode->viTVMode & VI_NON_INTERLACE)
VIDEO_WaitVSync();
}
void loop()
{
while (1)
{
WPAD_ScanPads();
u32 pressed = WPAD_ButtonsDown(0);
if (pressed & WPAD_BUTTON_HOME)
break;
VIDEO_WaitVSync();
}
}
bool init_network()
{
bool ok = false;
for (int i = 0; i < 50 && !ok; i++)
if (net_init() >= 0)
ok = true;
return ok;
}