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Added argument checks for exported input functions.

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This commit is contained in:
Armin Novak 2016-04-13 09:47:48 +02:00
parent 11d113872f
commit 115f59d9b0
1 changed files with 108 additions and 13 deletions
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121
libfreerdp/core/input.c
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@ -69,7 +69,12 @@ static void input_write_synchronize_event(wStream* s, UINT32 flags)
BOOL input_send_synchronize_event(rdpInput* input, UINT32 flags)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_SYNC);
if (!s)
@ -88,7 +93,12 @@ static void input_write_keyboard_event(wStream* s, UINT16 flags, UINT16 code)
BOOL input_send_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_SCANCODE);
if (!s)
@ -108,7 +118,12 @@ BOOL input_send_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 cod
{
wStream* s;
UINT16 keyboardFlags = 0;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
/*
* According to the specification, the slow path Unicode Keyboard Event
@ -138,7 +153,12 @@ void input_write_mouse_event(wStream* s, UINT16 flags, UINT16 x, UINT16 y)
BOOL input_send_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_MOUSE);
if (!s)
@ -157,7 +177,12 @@ static void input_write_extended_mouse_event(wStream* s, UINT16 flags, UINT16 x,
BOOL input_send_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = rdp_client_input_pdu_init(rdp, INPUT_EVENT_MOUSEX);
if (!s)
@ -210,7 +235,12 @@ BOOL input_send_keyboard_pause_event(rdpInput* input)
BOOL input_send_fastpath_synchronize_event(rdpInput* input, UINT32 flags)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
/* The FastPath Synchronization eventFlags has identical values as SlowPath */
s = fastpath_input_pdu_init(rdp->fastpath, (BYTE) flags, FASTPATH_INPUT_EVENT_SYNC);
@ -223,7 +253,12 @@ BOOL input_send_fastpath_keyboard_event(rdpInput* input, UINT16 flags, UINT16 co
{
wStream* s;
BYTE eventFlags = 0;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
eventFlags |= (flags & KBD_FLAGS_RELEASE) ? FASTPATH_INPUT_KBDFLAGS_RELEASE : 0;
eventFlags |= (flags & KBD_FLAGS_EXTENDED) ? FASTPATH_INPUT_KBDFLAGS_EXTENDED : 0;
@ -238,7 +273,12 @@ BOOL input_send_fastpath_unicode_keyboard_event(rdpInput* input, UINT16 flags, U
{
wStream* s;
BYTE eventFlags = 0;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
eventFlags |= (flags & KBD_FLAGS_RELEASE) ? FASTPATH_INPUT_KBDFLAGS_RELEASE : 0;
s = fastpath_input_pdu_init(rdp->fastpath, eventFlags, FASTPATH_INPUT_EVENT_UNICODE);
@ -251,7 +291,12 @@ BOOL input_send_fastpath_unicode_keyboard_event(rdpInput* input, UINT16 flags, U
BOOL input_send_fastpath_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = fastpath_input_pdu_init(rdp->fastpath, 0, FASTPATH_INPUT_EVENT_MOUSE);
if (!s)
@ -263,7 +308,12 @@ BOOL input_send_fastpath_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UI
BOOL input_send_fastpath_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = fastpath_input_pdu_init(rdp->fastpath, 0, FASTPATH_INPUT_EVENT_MOUSEX);
if (!s)
@ -275,8 +325,13 @@ BOOL input_send_fastpath_extended_mouse_event(rdpInput* input, UINT16 flags, UIN
BOOL input_send_fastpath_focus_in_event(rdpInput* input, UINT16 toggleStates)
{
wStream* s;
rdpRdp* rdp = input->context->rdp;
BYTE eventFlags = 0;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = fastpath_input_pdu_init_header(rdp->fastpath);
if (!s)
@ -305,10 +360,15 @@ BOOL input_send_fastpath_keyboard_pause_event(rdpInput* input)
* it sending the following sequence:
*/
wStream* s;
rdpRdp* rdp = input->context->rdp;
const BYTE keyDownEvent = FASTPATH_INPUT_EVENT_SCANCODE << 5;
const BYTE keyUpEvent = (FASTPATH_INPUT_EVENT_SCANCODE << 5)
| FASTPATH_INPUT_KBDFLAGS_RELEASE;
rdpRdp* rdp;
if (!input || !input->context)
return FALSE;
rdp = input->context->rdp;
s = fastpath_input_pdu_init_header(rdp->fastpath);
if (!s)
@ -479,6 +539,9 @@ BOOL input_recv(rdpInput* input, wStream* s)
{
UINT16 i, numberEvents;
if (!input || !s)
return FALSE;
if (Stream_GetRemainingLength(s) < 4)
return FALSE;
@ -500,7 +563,15 @@ BOOL input_recv(rdpInput* input, wStream* s)
BOOL input_register_client_callbacks(rdpInput* input)
{
rdpSettings* settings = input->context->settings;
rdpSettings* settings;
if (!input || !input->context)
return FALSE;
settings = input->context->settings;
if (!settings)
return FALSE;
if (settings->FastPathInput)
{
@ -536,11 +607,17 @@ BOOL input_register_client_callbacks(rdpInput* input)
BOOL freerdp_input_send_synchronize_event(rdpInput* input, UINT32 flags)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->SynchronizeEvent, input, flags);
}
BOOL freerdp_input_send_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->KeyboardEvent, input, flags, code);
}
@ -554,31 +631,49 @@ BOOL freerdp_input_send_keyboard_event_ex(rdpInput* input, BOOL down, UINT32 rdp
BOOL freerdp_input_send_unicode_keyboard_event(rdpInput* input, UINT16 flags, UINT16 code)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->UnicodeKeyboardEvent, input, flags, code);
}
BOOL freerdp_input_send_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->MouseEvent, input, flags, x, y);
}
BOOL freerdp_input_send_extended_mouse_event(rdpInput* input, UINT16 flags, UINT16 x, UINT16 y)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->ExtendedMouseEvent, input, flags, x, y);
}
BOOL freerdp_input_send_focus_in_event(rdpInput* input, UINT16 toggleStates)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->FocusInEvent, input, toggleStates);
}
BOOL freerdp_input_send_keyboard_pause_event(rdpInput* input)
{
if (!input)
return FALSE;
return IFCALLRESULT(TRUE, input->KeyboardPauseEvent, input);
}
int input_process_events(rdpInput* input)
{
if (!input)
return FALSE;
return input_message_queue_process_pending_messages(input);
}