This code sends and recv s txt file perfectly but cannot do it to otehr formats like .exe or .img. Please help me with these as I need to use htonl or htons?? Take a look!!
Here is the server side recv function ::
if (socket_type != SOCK_DGRAM)
{
fi = fopen (final,"wb");
retval = recv(msgsock, recv_buf, strlen(recv_buf), 0);
/*recv_buf[retval] = '\0';
fprintf (fi,"%s",recv_buf);*/
int i;
i=atoi(recv_buf);
char *q;
q=(char *)malloc(i*sizeof(char));
retval = recv(msgsock, q, strlen(q), 0);
//printf ("%s",q);
fwrite(q,i,1,fi);
fclose(fi);
}
else
{
retval = recvfrom(msgsock,recv_buf, sizeof(recv_buf), 0, (struct sockaddr *)&from, &fromlen);
printf("Server: Received datagram from %s\n", inet_ntoa(from.sin_addr));
printf ("SOCK_DGRAM");
}
if (retval == SOCKET_ERROR)
{
fprintf(stderr,"Server: recv() failed: error %d\n", WSAGetLastError());
closesocket(msgsock);
//continue;
}
else
printf("Server: recv() is OK.\n");
if (retval == 0)
{
printf("Server: Client closed connection.\n");
closesocket(msgsock);
//continue;
}
printf("Server: Received %d bytes, data from client\n", retval);
The client side sending function :::
void send_command()
{
int bytesent;
FILE *file_out;
//file_out = fopen(file_path,"rb");
char str_all[100000];//flag [30]="end";
///////////////////////getsize//////////////
char fsize[5];
int filesize;
file_out = fopen(file_path, "rb");
fseek(file_out, 0, SEEK_END);
filesize = ftell(file_out);
rewind (file_out);
itoa (filesize,fsize,10);
/////////////////////////////////////////////
send (ConnectSocket, fsize, strlen (fsize), 0);
char *r = (char *)malloc (filesize * sizeof(char));
fread(r,filesize,1,file_out);
bytesent = send( ConnectSocket, r, strlen(r), 0 );
printf("\nClient: Bytes sent: %ld\n", bytesent);
fclose (file_out);
/*while (fscanf(file_out,"%s",&str_all) != EOF)
{
bytesent = send( ConnectSocket, str_all, strlen(str_all), 0 );
printf("\nClient: Bytes sent: %ld\n", bytesent);
//Sleep(500);
}*/
/*printf("%s",flag);
send( ConnectSocket, flag, strlen(flag), 0 );*/
WSACleanup();
//return 0;
}