mirror of
https://github.com/irungentoo/toxcore.git
synced 2024-03-22 13:30:51 +08:00
refactor: extract each case in handle packet in messenger
This commit is contained in:
Green Sky
parent
306693aba3
commit
d3819b23b3
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@ -1 +1 @@
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d59fb1fec8d9a8ed4eabd956cfe43bfca70e444420b61ab575b8cb194c409d6e /usr/local/bin/tox-bootstrapd
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d2f8e02aeb249b0a22d4a7dee087d5f1301385587cb528e9ae055a6ceb2c4567 /usr/local/bin/tox-bootstrapd
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@ -1837,7 +1837,7 @@ int m_send_custom_lossy_packet(const Messenger *m, int32_t friendnumber, const u
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}
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non_null(1, 3) nullable(5)
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static int handle_custom_lossless_packet(void *object, int friend_num, const uint8_t *packet, uint16_t length,
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static int m_handle_custom_lossless_packet(void *object, int friend_num, const uint8_t *packet, uint16_t length,
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void *userdata)
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{
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Messenger *m = (Messenger *)object;
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@ -1854,7 +1854,7 @@ static int handle_custom_lossless_packet(void *object, int friend_num, const uin
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m->lossless_packethandler(m, friend_num, packet[0], packet, length, userdata);
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}
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return 1;
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return 0;
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}
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void custom_lossless_packet_registerhandler(Messenger *m, m_friend_lossless_packet_cb *lossless_packethandler)
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@ -1922,6 +1922,7 @@ static void check_friend_request_timed_out(Messenger *m, uint32_t i, uint64_t t,
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}
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}
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non_null(1) nullable(4)
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static int m_handle_status(void *object, int i, bool status, void *userdata)
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{
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Messenger *m = (Messenger *)object;
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@ -1937,6 +1938,313 @@ static int m_handle_status(void *object, int i, bool status, void *userdata)
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_offline(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length == 0) {
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set_friend_status(m, i, FRIEND_CONFIRMED, userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_nickname(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length > MAX_NAME_LENGTH) {
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return 0;
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}
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, data_terminated, data_length + 1);
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memcpy(data_terminated, data, data_length);
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data_terminated[data_length] = 0;
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/* inform of namechange before we overwrite the old name */
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if (m->friend_namechange != nullptr) {
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m->friend_namechange(m, i, data_terminated, data_length, userdata);
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}
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memcpy(m->friendlist[i].name, data_terminated, data_length);
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m->friendlist[i].name_length = data_length;
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_statusmessage(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length > MAX_STATUSMESSAGE_LENGTH) {
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return 0;
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}
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, data_terminated, data_length + 1);
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memcpy(data_terminated, data, data_length);
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data_terminated[data_length] = 0;
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if (m->friend_statusmessagechange != nullptr) {
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m->friend_statusmessagechange(m, i, data_terminated, data_length, userdata);
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}
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set_friend_statusmessage(m, i, data_terminated, data_length);
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_userstatus(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length != 1) {
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return 0;
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}
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const Userstatus status = (Userstatus)data[0];
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if (status >= USERSTATUS_INVALID) {
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return 0;
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}
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if (m->friend_userstatuschange != nullptr) {
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m->friend_userstatuschange(m, i, status, userdata);
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}
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set_friend_userstatus(m, i, status);
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_typing(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length != 1) {
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return 0;
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}
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const bool typing = data[0] != 0;
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set_friend_typing(m, i, typing);
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if (m->friend_typingchange != nullptr) {
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m->friend_typingchange(m, i, typing, userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(6)
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static int m_handle_packet_message(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, const Message_Type message_type, void *userdata)
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{
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if (data_length == 0) {
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return 0;
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}
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const uint8_t *message = data;
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const uint16_t message_length = data_length;
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, message_terminated, message_length + 1);
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memcpy(message_terminated, message, message_length);
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message_terminated[message_length] = 0;
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if (m->friend_message != nullptr) {
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m->friend_message(m, i, message_type, message_terminated, message_length, userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_invite_conference(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length == 0) {
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return 0;
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}
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if (m->conference_invite != nullptr) {
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m->conference_invite(m, i, data, data_length, userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_file_sendrequest(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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const unsigned int head_length = 1 + sizeof(uint32_t) + sizeof(uint64_t) + FILE_ID_LENGTH;
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if (data_length < head_length) {
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return 0;
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}
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const uint8_t filenumber = data[0];
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#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
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if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
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return 0;
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}
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#endif
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uint64_t filesize;
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uint32_t file_type;
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const uint16_t filename_length = data_length - head_length;
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if (filename_length > MAX_FILENAME_LENGTH) {
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return 0;
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}
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memcpy(&file_type, data + 1, sizeof(file_type));
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file_type = net_ntohl(file_type);
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net_unpack_u64(data + 1 + sizeof(uint32_t), &filesize);
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struct File_Transfers *ft = &m->friendlist[i].file_receiving[filenumber];
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if (ft->status != FILESTATUS_NONE) {
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return 0;
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}
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ft->status = FILESTATUS_NOT_ACCEPTED;
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ft->size = filesize;
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ft->transferred = 0;
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ft->paused = FILE_PAUSE_NOT;
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memcpy(ft->id, data + 1 + sizeof(uint32_t) + sizeof(uint64_t), FILE_ID_LENGTH);
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VLA(uint8_t, filename_terminated, filename_length + 1);
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const uint8_t *filename = nullptr;
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if (filename_length > 0) {
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/* Force NULL terminate file name. */
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memcpy(filename_terminated, data + head_length, filename_length);
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filename_terminated[filename_length] = 0;
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filename = filename_terminated;
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}
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uint32_t real_filenumber = filenumber;
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real_filenumber += 1;
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real_filenumber <<= 16;
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if (m->file_sendrequest != nullptr) {
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m->file_sendrequest(m, i, real_filenumber, file_type, filesize, filename, filename_length,
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userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_file_control(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length < 3) {
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return 0;
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}
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// On the other side, "outbound" is "inbound", i.e. if they send 1,
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// that means "inbound" on their side, but we call it "outbound"
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// here.
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const bool outbound = data[0] == 1;
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const uint8_t filenumber = data[1];
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const uint8_t control_type = data[2];
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#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
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if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
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return 0;
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}
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#endif
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if (handle_filecontrol(m, i, outbound, filenumber, control_type, data + 3, data_length - 3, userdata) == -1) {
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// TODO(iphydf): Do something different here? Right now, this
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// check is pointless.
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return 0;
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_file_data(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length < 1) {
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return 0;
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}
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const uint8_t filenumber = data[0];
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#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
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if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
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return 0;
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}
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#endif
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struct File_Transfers *ft = &m->friendlist[i].file_receiving[filenumber];
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if (ft->status != FILESTATUS_TRANSFERRING) {
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return 0;
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}
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uint64_t position = ft->transferred;
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uint32_t real_filenumber = filenumber;
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real_filenumber += 1;
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real_filenumber <<= 16;
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uint16_t file_data_length = data_length - 1;
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const uint8_t *file_data;
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if (file_data_length == 0) {
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file_data = nullptr;
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} else {
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file_data = data + 1;
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}
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/* Prevent more data than the filesize from being passed to clients. */
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if ((ft->transferred + file_data_length) > ft->size) {
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file_data_length = ft->size - ft->transferred;
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}
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if (m->file_filedata != nullptr) {
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m->file_filedata(m, i, real_filenumber, position, file_data, file_data_length, userdata);
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}
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ft->transferred += file_data_length;
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if (file_data_length > 0 && (ft->transferred >= ft->size || file_data_length != MAX_FILE_DATA_SIZE)) {
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file_data_length = 0;
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file_data = nullptr;
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position = ft->transferred;
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/* Full file received. */
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if (m->file_filedata != nullptr) {
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m->file_filedata(m, i, real_filenumber, position, file_data, file_data_length, userdata);
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}
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}
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/* Data is zero, filetransfer is over. */
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if (file_data_length == 0) {
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ft->status = FILESTATUS_NONE;
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet_msi(Messenger *m, const int i, const uint8_t *data, const uint16_t data_length, void *userdata)
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{
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if (data_length == 0) {
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return 0;
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}
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if (m->msi_packet != nullptr) {
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m->msi_packet(m, i, data, data_length, m->msi_packet_userdata);
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}
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return 0;
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}
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non_null(1, 3) nullable(5)
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static int m_handle_packet(void *object, int i, const uint8_t *temp, uint16_t len, void *userdata)
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{
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if (len == 0) {
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@ -1958,298 +2266,34 @@ static int m_handle_packet(void *object, int i, const uint8_t *temp, uint16_t le
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}
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switch (packet_id) {
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case PACKET_ID_OFFLINE: {
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if (data_length > 0) {
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break;
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}
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set_friend_status(m, i, FRIEND_CONFIRMED, userdata);
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break;
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}
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case PACKET_ID_NICKNAME: {
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if (data_length > MAX_NAME_LENGTH) {
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break;
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}
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, data_terminated, data_length + 1);
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memcpy(data_terminated, data, data_length);
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data_terminated[data_length] = 0;
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/* inform of namechange before we overwrite the old name */
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if (m->friend_namechange != nullptr) {
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m->friend_namechange(m, i, data_terminated, data_length, userdata);
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}
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memcpy(m->friendlist[i].name, data_terminated, data_length);
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m->friendlist[i].name_length = data_length;
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break;
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}
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case PACKET_ID_STATUSMESSAGE: {
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if (data_length > MAX_STATUSMESSAGE_LENGTH) {
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break;
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}
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, data_terminated, data_length + 1);
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memcpy(data_terminated, data, data_length);
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data_terminated[data_length] = 0;
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if (m->friend_statusmessagechange != nullptr) {
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m->friend_statusmessagechange(m, i, data_terminated, data_length, userdata);
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}
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set_friend_statusmessage(m, i, data_terminated, data_length);
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break;
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}
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case PACKET_ID_USERSTATUS: {
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if (data_length != 1) {
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break;
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}
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const Userstatus status = (Userstatus)data[0];
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if (status >= USERSTATUS_INVALID) {
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break;
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}
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if (m->friend_userstatuschange != nullptr) {
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m->friend_userstatuschange(m, i, status, userdata);
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}
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set_friend_userstatus(m, i, status);
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break;
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}
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case PACKET_ID_TYPING: {
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if (data_length != 1) {
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break;
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}
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const bool typing = data[0] != 0;
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set_friend_typing(m, i, typing);
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if (m->friend_typingchange != nullptr) {
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m->friend_typingchange(m, i, typing, userdata);
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}
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break;
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}
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case PACKET_ID_MESSAGE: // fall-through
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case PACKET_ID_ACTION: {
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if (data_length == 0) {
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break;
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}
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const uint8_t *message = data;
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const uint16_t message_length = data_length;
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/* Make sure the NULL terminator is present. */
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VLA(uint8_t, message_terminated, message_length + 1);
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memcpy(message_terminated, message, message_length);
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message_terminated[message_length] = 0;
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const uint8_t type = packet_id - PACKET_ID_MESSAGE;
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if (m->friend_message != nullptr) {
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m->friend_message(m, i, type, message_terminated, message_length, userdata);
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}
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break;
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}
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case PACKET_ID_INVITE_CONFERENCE: {
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if (data_length == 0) {
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break;
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}
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if (m->conference_invite != nullptr) {
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m->conference_invite(m, i, data, data_length, userdata);
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}
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break;
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}
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case PACKET_ID_FILE_SENDREQUEST: {
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const unsigned int head_length = 1 + sizeof(uint32_t) + sizeof(uint64_t) + FILE_ID_LENGTH;
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if (data_length < head_length) {
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break;
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}
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const uint8_t filenumber = data[0];
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#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
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if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
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break;
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}
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||||
|
||||
#endif
|
||||
|
||||
uint64_t filesize;
|
||||
uint32_t file_type;
|
||||
const uint16_t filename_length = data_length - head_length;
|
||||
|
||||
if (filename_length > MAX_FILENAME_LENGTH) {
|
||||
break;
|
||||
}
|
||||
|
||||
memcpy(&file_type, data + 1, sizeof(file_type));
|
||||
file_type = net_ntohl(file_type);
|
||||
|
||||
net_unpack_u64(data + 1 + sizeof(uint32_t), &filesize);
|
||||
struct File_Transfers *ft = &m->friendlist[i].file_receiving[filenumber];
|
||||
|
||||
if (ft->status != FILESTATUS_NONE) {
|
||||
break;
|
||||
}
|
||||
|
||||
ft->status = FILESTATUS_NOT_ACCEPTED;
|
||||
ft->size = filesize;
|
||||
ft->transferred = 0;
|
||||
ft->paused = FILE_PAUSE_NOT;
|
||||
memcpy(ft->id, data + 1 + sizeof(uint32_t) + sizeof(uint64_t), FILE_ID_LENGTH);
|
||||
|
||||
VLA(uint8_t, filename_terminated, filename_length + 1);
|
||||
const uint8_t *filename = nullptr;
|
||||
|
||||
if (filename_length > 0) {
|
||||
/* Force NULL terminate file name. */
|
||||
memcpy(filename_terminated, data + head_length, filename_length);
|
||||
filename_terminated[filename_length] = 0;
|
||||
filename = filename_terminated;
|
||||
}
|
||||
|
||||
uint32_t real_filenumber = filenumber;
|
||||
real_filenumber += 1;
|
||||
real_filenumber <<= 16;
|
||||
|
||||
if (m->file_sendrequest != nullptr) {
|
||||
m->file_sendrequest(m, i, real_filenumber, file_type, filesize, filename, filename_length,
|
||||
userdata);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case PACKET_ID_FILE_CONTROL: {
|
||||
if (data_length < 3) {
|
||||
break;
|
||||
}
|
||||
|
||||
// On the other side, "outbound" is "inbound", i.e. if they send 1,
|
||||
// that means "inbound" on their side, but we call it "outbound"
|
||||
// here.
|
||||
const bool outbound = data[0] == 1;
|
||||
uint8_t filenumber = data[1];
|
||||
const uint8_t control_type = data[2];
|
||||
|
||||
#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
|
||||
|
||||
if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
|
||||
break;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
if (handle_filecontrol(m, i, outbound, filenumber, control_type, data + 3, data_length - 3, userdata) == -1) {
|
||||
// TODO(iphydf): Do something different here? Right now, this
|
||||
// check is pointless.
|
||||
break;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case PACKET_ID_FILE_DATA: {
|
||||
if (data_length < 1) {
|
||||
break;
|
||||
}
|
||||
|
||||
uint8_t filenumber = data[0];
|
||||
|
||||
#if UINT8_MAX >= MAX_CONCURRENT_FILE_PIPES
|
||||
|
||||
if (filenumber >= MAX_CONCURRENT_FILE_PIPES) {
|
||||
break;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
struct File_Transfers *ft = &m->friendlist[i].file_receiving[filenumber];
|
||||
|
||||
if (ft->status != FILESTATUS_TRANSFERRING) {
|
||||
break;
|
||||
}
|
||||
|
||||
uint64_t position = ft->transferred;
|
||||
uint32_t real_filenumber = filenumber;
|
||||
real_filenumber += 1;
|
||||
real_filenumber <<= 16;
|
||||
uint16_t file_data_length = data_length - 1;
|
||||
const uint8_t *file_data;
|
||||
|
||||
if (file_data_length == 0) {
|
||||
file_data = nullptr;
|
||||
} else {
|
||||
file_data = data + 1;
|
||||
}
|
||||
|
||||
/* Prevent more data than the filesize from being passed to clients. */
|
||||
if ((ft->transferred + file_data_length) > ft->size) {
|
||||
file_data_length = ft->size - ft->transferred;
|
||||
}
|
||||
|
||||
if (m->file_filedata != nullptr) {
|
||||
m->file_filedata(m, i, real_filenumber, position, file_data, file_data_length, userdata);
|
||||
}
|
||||
|
||||
ft->transferred += file_data_length;
|
||||
|
||||
if (file_data_length > 0 && (ft->transferred >= ft->size || file_data_length != MAX_FILE_DATA_SIZE)) {
|
||||
file_data_length = 0;
|
||||
file_data = nullptr;
|
||||
position = ft->transferred;
|
||||
|
||||
/* Full file received. */
|
||||
if (m->file_filedata != nullptr) {
|
||||
m->file_filedata(m, i, real_filenumber, position, file_data, file_data_length, userdata);
|
||||
}
|
||||
}
|
||||
|
||||
/* Data is zero, filetransfer is over. */
|
||||
if (file_data_length == 0) {
|
||||
ft->status = FILESTATUS_NONE;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case PACKET_ID_MSI: {
|
||||
if (data_length == 0) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (m->msi_packet != nullptr) {
|
||||
m->msi_packet(m, i, data, data_length, m->msi_packet_userdata);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
default: {
|
||||
handle_custom_lossless_packet(object, i, temp, len, userdata);
|
||||
break;
|
||||
}
|
||||
// TODO(Green-Sky): now all return 0 on error AND success, make errors errors?
|
||||
case PACKET_ID_OFFLINE:
|
||||
return m_handle_packet_offline(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_NICKNAME:
|
||||
return m_handle_packet_nickname(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_STATUSMESSAGE:
|
||||
return m_handle_packet_statusmessage(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_USERSTATUS:
|
||||
return m_handle_packet_userstatus(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_TYPING:
|
||||
return m_handle_packet_typing(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_MESSAGE:
|
||||
return m_handle_packet_message(m, i, data, data_length, MESSAGE_NORMAL, userdata);
|
||||
case PACKET_ID_ACTION:
|
||||
return m_handle_packet_message(m, i, data, data_length, MESSAGE_ACTION, userdata);
|
||||
case PACKET_ID_INVITE_CONFERENCE:
|
||||
return m_handle_packet_invite_conference(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_FILE_SENDREQUEST:
|
||||
return m_handle_packet_file_sendrequest(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_FILE_CONTROL:
|
||||
return m_handle_packet_file_control(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_FILE_DATA:
|
||||
return m_handle_packet_file_data(m, i, data, data_length, userdata);
|
||||
case PACKET_ID_MSI:
|
||||
return m_handle_packet_msi(m, i, data, data_length, userdata);
|
||||
}
|
||||
|
||||
return 0;
|
||||
return m_handle_custom_lossless_packet(object, i, temp, len, userdata);
|
||||
}
|
||||
|
||||
non_null(1) nullable(2)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user