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working/rd
Author | SHA1 | Date | |
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0d479fee8c | ||
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f4afa306d2 | ||
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2cec76f748 | ||
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792e23d481 | ||
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4f1f1d71a6 | ||
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d26f497a9c | ||
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7a624c4d86 | ||
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64a463738b | ||
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8d9d0fc097 | ||
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f9986a5787 |
@ -135,6 +135,10 @@ void guac_rdpdr_fs_process_set_rename_info(guac_rdp_common_svc* svc,
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wStream* output_stream;
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wStream* output_stream;
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char destination_path[GUAC_RDP_FS_MAX_PATH];
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char destination_path[GUAC_RDP_FS_MAX_PATH];
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/* Check stream size prior to reading. */
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if (Stream_GetRemainingLength(input_stream) < 6)
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return;
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/* Read structure */
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/* Read structure */
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Stream_Seek_UINT8(input_stream); /* ReplaceIfExists */
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Stream_Seek_UINT8(input_stream); /* ReplaceIfExists */
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Stream_Seek_UINT8(input_stream); /* RootDirectory */
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Stream_Seek_UINT8(input_stream); /* RootDirectory */
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@ -48,6 +48,10 @@ void guac_rdpdr_fs_process_create(guac_rdp_common_svc* svc,
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int create_disposition, create_options, path_length;
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int create_disposition, create_options, path_length;
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char path[GUAC_RDP_FS_MAX_PATH];
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char path[GUAC_RDP_FS_MAX_PATH];
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/* Check remaining stream data prior to reading. */
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if (Stream_GetRemainingLength(input_stream) < 32)
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return;
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/* Read "create" information */
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/* Read "create" information */
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Stream_Read_UINT32(input_stream, desired_access);
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Stream_Read_UINT32(input_stream, desired_access);
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Stream_Seek_UINT64(input_stream); /* allocation size */
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Stream_Seek_UINT64(input_stream); /* allocation size */
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@ -123,6 +127,10 @@ void guac_rdpdr_fs_process_read(guac_rdp_common_svc* svc,
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wStream* output_stream;
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wStream* output_stream;
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/* Check remaining bytes before reading stream. */
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if (Stream_GetRemainingLength(input_stream) < 12)
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return;
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/* Read packet */
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/* Read packet */
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Stream_Read_UINT32(input_stream, length);
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Stream_Read_UINT32(input_stream, length);
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Stream_Read_UINT64(input_stream, offset);
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Stream_Read_UINT64(input_stream, offset);
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@ -172,6 +180,10 @@ void guac_rdpdr_fs_process_write(guac_rdp_common_svc* svc,
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wStream* output_stream;
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wStream* output_stream;
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/* Check remaining length. */
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if (Stream_GetRemainingLength(input_stream) < 32)
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return;
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/* Read packet */
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/* Read packet */
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Stream_Read_UINT32(input_stream, length);
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Stream_Read_UINT32(input_stream, length);
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Stream_Read_UINT64(input_stream, offset);
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Stream_Read_UINT64(input_stream, offset);
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@ -244,6 +256,10 @@ void guac_rdpdr_fs_process_volume_info(guac_rdp_common_svc* svc,
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int fs_information_class;
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int fs_information_class;
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/* Check remaining length */
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT32(input_stream, fs_information_class);
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/* Dispatch to appropriate class-specific handler */
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/* Dispatch to appropriate class-specific handler */
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@ -282,6 +298,10 @@ void guac_rdpdr_fs_process_file_info(guac_rdp_common_svc* svc,
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int fs_information_class;
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int fs_information_class;
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/* Check remaining length */
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT32(input_stream, fs_information_class);
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/* Dispatch to appropriate class-specific handler */
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/* Dispatch to appropriate class-specific handler */
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@ -328,6 +348,10 @@ void guac_rdpdr_fs_process_set_file_info(guac_rdp_common_svc* svc,
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int fs_information_class;
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int fs_information_class;
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int length;
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int length;
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/* Check remaining length */
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if (Stream_GetRemainingLength(input_stream) < 32)
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return;
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT32(input_stream, length); /* Length */
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Stream_Read_UINT32(input_stream, length); /* Length */
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Stream_Seek(input_stream, 24); /* Padding */
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Stream_Seek(input_stream, 24); /* Padding */
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@ -406,6 +430,9 @@ void guac_rdpdr_fs_process_query_directory(guac_rdp_common_svc* svc,
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if (file == NULL)
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if (file == NULL)
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return;
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return;
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if (Stream_GetRemainingLength(input_stream) < 9)
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return;
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/* Read main header */
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/* Read main header */
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT32(input_stream, fs_information_class);
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Stream_Read_UINT8(input_stream, initial_query);
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Stream_Read_UINT8(input_stream, initial_query);
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@ -414,6 +441,9 @@ void guac_rdpdr_fs_process_query_directory(guac_rdp_common_svc* svc,
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/* If this is the first query, the path is included after padding */
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/* If this is the first query, the path is included after padding */
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if (initial_query) {
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if (initial_query) {
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if (Stream_GetRemainingLength(input_stream) < 23)
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return;
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Stream_Seek(input_stream, 23); /* Padding */
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Stream_Seek(input_stream, 23); /* Padding */
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/* Convert path to UTF-8 */
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/* Convert path to UTF-8 */
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@ -212,6 +212,9 @@ void guac_rdpdr_process_server_announce(guac_rdp_common_svc* svc,
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unsigned int major, minor, client_id;
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unsigned int major, minor, client_id;
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if (Stream_GetRemainingLength(input_stream) < 8)
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return;
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Stream_Read_UINT16(input_stream, major);
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Stream_Read_UINT16(input_stream, major);
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Stream_Read_UINT16(input_stream, minor);
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Stream_Read_UINT16(input_stream, minor);
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Stream_Read_UINT32(input_stream, client_id);
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Stream_Read_UINT32(input_stream, client_id);
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@ -243,6 +246,9 @@ void guac_rdpdr_process_device_reply(guac_rdp_common_svc* svc,
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unsigned int device_id, ntstatus;
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unsigned int device_id, ntstatus;
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int severity, c, n, facility, code;
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int severity, c, n, facility, code;
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if (Stream_GetRemainingLength(input_stream) < 8)
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return;
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Stream_Read_UINT32(input_stream, device_id);
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Stream_Read_UINT32(input_stream, device_id);
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Stream_Read_UINT32(input_stream, ntstatus);
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Stream_Read_UINT32(input_stream, ntstatus);
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@ -278,6 +284,9 @@ void guac_rdpdr_process_device_iorequest(guac_rdp_common_svc* svc,
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guac_rdpdr* rdpdr = (guac_rdpdr*) svc->data;
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guac_rdpdr* rdpdr = (guac_rdpdr*) svc->data;
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guac_rdpdr_iorequest iorequest;
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guac_rdpdr_iorequest iorequest;
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if (Stream_GetRemainingLength(input_stream) < 20)
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return;
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/* Read header */
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/* Read header */
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Stream_Read_UINT32(input_stream, iorequest.device_id);
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Stream_Read_UINT32(input_stream, iorequest.device_id);
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Stream_Read_UINT32(input_stream, iorequest.file_id);
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Stream_Read_UINT32(input_stream, iorequest.file_id);
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@ -306,6 +315,9 @@ void guac_rdpdr_process_server_capability(guac_rdp_common_svc* svc,
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int count;
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int count;
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int i;
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int i;
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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/* Read header */
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/* Read header */
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Stream_Read_UINT16(input_stream, count);
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Stream_Read_UINT16(input_stream, count);
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Stream_Seek(input_stream, 2);
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Stream_Seek(input_stream, 2);
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@ -316,9 +328,15 @@ void guac_rdpdr_process_server_capability(guac_rdp_common_svc* svc,
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int type;
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int type;
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int length;
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int length;
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if (Stream_GetRemainingLength(input_stream) < 4)
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break;
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Stream_Read_UINT16(input_stream, type);
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Stream_Read_UINT16(input_stream, type);
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Stream_Read_UINT16(input_stream, length);
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Stream_Read_UINT16(input_stream, length);
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if (Stream_GetRemainingLength(input_stream) < (length - 4))
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break;
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/* Ignore all for now */
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/* Ignore all for now */
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guac_client_log(svc->client, GUAC_LOG_DEBUG, "Ignoring server capability set type=0x%04x, length=%i", type, length);
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guac_client_log(svc->client, GUAC_LOG_DEBUG, "Ignoring server capability set type=0x%04x, length=%i", type, length);
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Stream_Seek(input_stream, length - 4);
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Stream_Seek(input_stream, length - 4);
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@ -67,6 +67,9 @@ void guac_rdpdr_process_print_job_write(guac_rdp_common_svc* svc,
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int length;
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int length;
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int status;
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int status;
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if (Stream_GetRemainingLength(input_stream) < 32)
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return;
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/* Read buffer of print data */
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/* Read buffer of print data */
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Stream_Read_UINT32(input_stream, length);
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Stream_Read_UINT32(input_stream, length);
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Stream_Seek(input_stream, 8); /* Offset */
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Stream_Seek(input_stream, 8); /* Offset */
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@ -38,6 +38,9 @@ void guac_rdpdr_process_receive(guac_rdp_common_svc* svc,
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int component;
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int component;
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int packet_id;
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int packet_id;
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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/* Read header */
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/* Read header */
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Stream_Read_UINT16(input_stream, component);
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Stream_Read_UINT16(input_stream, component);
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Stream_Read_UINT16(input_stream, packet_id);
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Stream_Read_UINT16(input_stream, packet_id);
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@ -50,6 +50,9 @@ void guac_rdpsnd_formats_handler(guac_rdp_common_svc* svc,
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/* Reset own format count */
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/* Reset own format count */
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rdpsnd->format_count = 0;
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rdpsnd->format_count = 0;
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if (Stream_GetRemainingLength(input_stream) < 20)
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return;
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/* Format header */
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/* Format header */
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Stream_Seek(input_stream, 14);
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Stream_Seek(input_stream, 14);
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Stream_Read_UINT16(input_stream, server_format_count);
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Stream_Read_UINT16(input_stream, server_format_count);
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@ -96,6 +99,9 @@ void guac_rdpsnd_formats_handler(guac_rdp_common_svc* svc,
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/* Remember position in stream */
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/* Remember position in stream */
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Stream_GetPointer(input_stream, format_start);
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Stream_GetPointer(input_stream, format_start);
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if (Stream_GetRemainingLength(input_stream) < 18)
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return;
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/* Read format */
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/* Read format */
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Stream_Read_UINT16(input_stream, format_tag);
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Stream_Read_UINT16(input_stream, format_tag);
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Stream_Read_UINT16(input_stream, channels);
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Stream_Read_UINT16(input_stream, channels);
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@ -106,6 +112,10 @@ void guac_rdpsnd_formats_handler(guac_rdp_common_svc* svc,
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/* Skip past extra data */
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/* Skip past extra data */
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Stream_Read_UINT16(input_stream, body_size);
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Stream_Read_UINT16(input_stream, body_size);
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if (Stream_GetRemainingLength(input_stream) < body_size)
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return;
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Stream_Seek(input_stream, body_size);
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Stream_Seek(input_stream, body_size);
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/* If PCM, accept */
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/* If PCM, accept */
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@ -205,6 +215,9 @@ void guac_rdpsnd_training_handler(guac_rdp_common_svc* svc,
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guac_rdpsnd* rdpsnd = (guac_rdpsnd*) svc->data;
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guac_rdpsnd* rdpsnd = (guac_rdpsnd*) svc->data;
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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/* Read timestamp and data size */
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/* Read timestamp and data size */
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Stream_Read_UINT16(input_stream, rdpsnd->server_timestamp);
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Stream_Read_UINT16(input_stream, rdpsnd->server_timestamp);
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Stream_Read_UINT16(input_stream, data_size);
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Stream_Read_UINT16(input_stream, data_size);
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@ -232,6 +245,9 @@ void guac_rdpsnd_wave_info_handler(guac_rdp_common_svc* svc,
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
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guac_audio_stream* audio = rdp_client->audio;
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guac_audio_stream* audio = rdp_client->audio;
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if (Stream_GetRemainingLength(input_stream) < 12)
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return;
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/* Read wave information */
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/* Read wave information */
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Stream_Read_UINT16(input_stream, rdpsnd->server_timestamp);
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Stream_Read_UINT16(input_stream, rdpsnd->server_timestamp);
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Stream_Read_UINT16(input_stream, format);
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Stream_Read_UINT16(input_stream, format);
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@ -35,11 +35,23 @@ void guac_rdpsnd_process_receive(guac_rdp_common_svc* svc,
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guac_rdpsnd* rdpsnd = (guac_rdpsnd*) svc->data;
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guac_rdpsnd* rdpsnd = (guac_rdpsnd*) svc->data;
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guac_rdpsnd_pdu_header header;
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guac_rdpsnd_pdu_header header;
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/* Check that we at least have a header. */
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if (Stream_GetRemainingLength(input_stream) < 4)
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return;
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/* Read RDPSND PDU header */
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/* Read RDPSND PDU header */
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Stream_Read_UINT8(input_stream, header.message_type);
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Stream_Read_UINT8(input_stream, header.message_type);
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Stream_Seek_UINT8(input_stream);
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Stream_Seek_UINT8(input_stream);
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Stream_Read_UINT16(input_stream, header.body_size);
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Stream_Read_UINT16(input_stream, header.body_size);
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if (Stream_GetRemainingLength(input_stream) < header.body_size) {
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guac_client_log(svc->client, GUAC_LOG_DEBUG, "Not enough bytes in stream."
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" Remaining: %d, Body size: %d",
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Stream_GetRemainingLength(input_stream),
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|
header.body_size);
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||||||
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return;
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||||||
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}
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|
||||||
/*
|
/*
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||||||
* If next PDU is SNDWAVE (due to receiving WaveInfo PDU previously),
|
* If next PDU is SNDWAVE (due to receiving WaveInfo PDU previously),
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* ignore the header and parse as a Wave PDU.
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* ignore the header and parse as a Wave PDU.
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@ -116,6 +116,10 @@ static VOID guac_rdp_common_svc_handle_open_event(LPVOID user_param,
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svc->_input_stream = Stream_New(NULL, total_length);
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svc->_input_stream = Stream_New(NULL, total_length);
|
||||||
}
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}
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||||||
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||||||
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/* leave if we don't have a stream. */
|
||||||
|
if (svc->_input_stream == NULL)
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||||||
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return;
|
||||||
|
|
||||||
/* Add chunk to buffer only if sufficient space remains */
|
/* Add chunk to buffer only if sufficient space remains */
|
||||||
if (Stream_EnsureRemainingCapacity(svc->_input_stream, data_length))
|
if (Stream_EnsureRemainingCapacity(svc->_input_stream, data_length))
|
||||||
Stream_Write(svc->_input_stream, data, data_length);
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Stream_Write(svc->_input_stream, data, data_length);
|
||||||
@ -137,6 +141,7 @@ static VOID guac_rdp_common_svc_handle_open_event(LPVOID user_param,
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svc->_receive_handler(svc, svc->_input_stream);
|
svc->_receive_handler(svc, svc->_input_stream);
|
||||||
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|
||||||
Stream_Free(svc->_input_stream, TRUE);
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Stream_Free(svc->_input_stream, TRUE);
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||||||
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svc->_input_stream = NULL;
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||||||
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|
||||||
}
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}
|
||||||
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|
||||||
|
@ -39,6 +39,9 @@
|
|||||||
static void guac_rdp_ai_read_format(wStream* stream,
|
static void guac_rdp_ai_read_format(wStream* stream,
|
||||||
guac_rdp_ai_format* format) {
|
guac_rdp_ai_format* format) {
|
||||||
|
|
||||||
|
if (Stream_GetRemainingLength(stream) < 18)
|
||||||
|
return;
|
||||||
|
|
||||||
/* Read audio format into structure */
|
/* Read audio format into structure */
|
||||||
Stream_Read_UINT16(stream, format->tag); /* wFormatTag */
|
Stream_Read_UINT16(stream, format->tag); /* wFormatTag */
|
||||||
Stream_Read_UINT16(stream, format->channels); /* nChannels */
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Stream_Read_UINT16(stream, format->channels); /* nChannels */
|
||||||
@ -49,7 +52,8 @@ static void guac_rdp_ai_read_format(wStream* stream,
|
|||||||
Stream_Read_UINT16(stream, format->data_size); /* cbSize */
|
Stream_Read_UINT16(stream, format->data_size); /* cbSize */
|
||||||
|
|
||||||
/* Read arbitrary data block (if applicable) */
|
/* Read arbitrary data block (if applicable) */
|
||||||
if (format->data_size != 0) {
|
if (format->data_size != 0
|
||||||
|
&& Stream_GetRemainingLength(stream) >= format->data_size) {
|
||||||
format->data = Stream_Pointer(stream); /* data */
|
format->data = Stream_Pointer(stream); /* data */
|
||||||
Stream_Seek(stream, format->data_size);
|
Stream_Seek(stream, format->data_size);
|
||||||
}
|
}
|
||||||
@ -232,6 +236,12 @@ static void guac_rdp_ai_send_formatchange(IWTSVirtualChannel* channel,
|
|||||||
void guac_rdp_ai_process_version(guac_client* client,
|
void guac_rdp_ai_process_version(guac_client* client,
|
||||||
IWTSVirtualChannel* channel, wStream* stream) {
|
IWTSVirtualChannel* channel, wStream* stream) {
|
||||||
|
|
||||||
|
if (Stream_GetRemainingLength(stream) < 4) {
|
||||||
|
guac_client_log(client, GUAC_LOG_WARNING,
|
||||||
|
"Invalid value provided for AUDIO_INPUT version.");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
UINT32 version;
|
UINT32 version;
|
||||||
Stream_Read_UINT32(stream, version);
|
Stream_Read_UINT32(stream, version);
|
||||||
|
|
||||||
@ -258,10 +268,13 @@ void guac_rdp_ai_process_formats(guac_client* client,
|
|||||||
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
|
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
|
||||||
guac_rdp_audio_buffer* audio_buffer = rdp_client->audio_input;
|
guac_rdp_audio_buffer* audio_buffer = rdp_client->audio_input;
|
||||||
|
|
||||||
|
if (Stream_GetRemainingLength(stream) < 8)
|
||||||
|
return;
|
||||||
|
|
||||||
UINT32 num_formats;
|
UINT32 num_formats;
|
||||||
Stream_Read_UINT32(stream, num_formats); /* NumFormats */
|
Stream_Read_UINT32(stream, num_formats); /* NumFormats */
|
||||||
Stream_Seek_UINT32(stream); /* cbSizeFormatsPacket (MUST BE IGNORED) */
|
Stream_Seek_UINT32(stream); /* cbSizeFormatsPacket (MUST BE IGNORED) */
|
||||||
|
|
||||||
UINT32 index;
|
UINT32 index;
|
||||||
for (index = 0; index < num_formats; index++) {
|
for (index = 0; index < num_formats; index++) {
|
||||||
|
|
||||||
@ -306,6 +319,9 @@ void guac_rdp_ai_process_open(guac_client* client,
|
|||||||
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
|
guac_rdp_client* rdp_client = (guac_rdp_client*) client->data;
|
||||||
guac_rdp_audio_buffer* audio_buffer = rdp_client->audio_input;
|
guac_rdp_audio_buffer* audio_buffer = rdp_client->audio_input;
|
||||||
|
|
||||||
|
if (Stream_GetRemainingLength(stream) < 8)
|
||||||
|
return;
|
||||||
|
|
||||||
UINT32 packet_frames;
|
UINT32 packet_frames;
|
||||||
UINT32 initial_format;
|
UINT32 initial_format;
|
||||||
|
|
||||||
|
@ -52,10 +52,13 @@
|
|||||||
static void guac_rdp_ai_handle_data(guac_client* client,
|
static void guac_rdp_ai_handle_data(guac_client* client,
|
||||||
IWTSVirtualChannel* channel, wStream* stream) {
|
IWTSVirtualChannel* channel, wStream* stream) {
|
||||||
|
|
||||||
|
if (Stream_GetRemainingLength(stream) < 1)
|
||||||
|
return;
|
||||||
|
|
||||||
/* Read message ID from received PDU */
|
/* Read message ID from received PDU */
|
||||||
BYTE message_id;
|
BYTE message_id;
|
||||||
Stream_Read_UINT8(stream, message_id);
|
Stream_Read_UINT8(stream, message_id);
|
||||||
|
|
||||||
/* Invoke appropriate message processor based on ID */
|
/* Invoke appropriate message processor based on ID */
|
||||||
switch (message_id) {
|
switch (message_id) {
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user