/*
Send a write request to the server.
1. Format message.
2. Send the request using the connection handle.
3. Return the number of bytes sent, or negative on error.
*/
int tftp_send_wrq(struct tftp_conn *tc)
{
int reqlen = TFTP_WRQ_LEN(tc->fname, tc->mode);
struct tftp_wrq *wrq;
if((wrq = malloc(reqlen)) == NULL)
return -1;
wrq->opcode = htons(OPCODE_WRQ);
strcpy (&wrq->req[0], tc->fname);
strcpy (&wrq->req[strlen(tc->fname) + 1], tc->mode);
// Save the message in the msgbuffer
memcpy(tc->msgbuf, wrq, reqlen);
size_t size = sendto(tc->sock, wrq, reqlen, 0, (struct sockaddr *) &tc->peer_addr, tc->addrlen);
printf("SENT WRQ\n");
free(wrq);
print_message((struct tftp_msg *) tc->msgbuf, 0);
return size;
}
/*
Send a write request to the server.
1. Format message.
2. Send the request using the connection handle.
3. Return the number of bytes sent, or negative on error.
*/
int tftp_send_wrq(struct tftp_conn *tc)
{
/* ===ADDED/CHANGED=== */
struct tftp_wrq *wrq;
wrq = malloc(TFTP_WRQ_LEN(tc->fname,tc->mode));
wrq->opcode = htons(OPCODE_WRQ);
int index = snprintf(wrq->req, BLOCK_SIZE, "%s", tc->fname);
index++;
snprintf((wrq->req + index), (BLOCK_SIZE - index - 1), "%s", tc->mode);
int bytes_sent = sendto(tc->sock, wrq, TFTP_WRQ_LEN(tc->fname, tc->mode), 0,
(struct sockaddr *) &(tc->peer_addr), tc->addrlen);
free(wrq);
return bytes_sent;
/* ===END OF ADDED/CHANGED=== */
}
