This loop is supposed to take data from a socket line by line and put it in a buffer. For some reason, when there is no new data to return, recv returns the last couple lines it got. I was able to stop the bug by commenting out the first recv, but then I cant tell how long the next line will be. I know it's not a

while(this->connected){
    memset(buf, '\0', sizeof(buf));
    recv(this->sock, buf, sizeof(buf), MSG_PEEK);           //get length of next message
    ptr = strstr(buf, "\r\n");
    if (ptr == NULL) continue;
    err = recv(this->sock, buf, (ptr-buf), NULL);    //get next message

    printf("--%db\n%s\n", err, buf);

    tok[0] = strtok(buf, " ");
    for(i=1;tok[i-1]!=NULL;i++) tok[i] = strtok(NULL, " ");

//do more stuff
}