safe_send
return safe_send(fd, &ch, 1);
return safe_send(rfb->clientfd, msgbuf, p - msgbuf);
len = safe_send(rfb->clientfd, protover, strlen(protover));
len = safe_send(rfb->clientfd, &security_type, sizeof(security_type));
len = safe_send(rfb->clientfd, buf, 4);
len = safe_send(rfb->clientfd, buf, 12);
len = safe_send(rfb->clientfd, buf, 4);
len = safe_send(rfb->clientfd, buf, 20);
len = safe_send(rfb->clientfd, p, line_len);
safe_send(rfb->clientfd, &msg_type, sizeof(msg_type));
static ssize_t safe_send(int s, const void *msg, int len);