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loopbreaker and fixes

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This commit is contained in:
mbattista 2021-04-12 14:16:57 +00:00
parent 9386cbb2e2
commit 7f226842df
1 changed files with 26 additions and 5 deletions
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31
server/internal/xorg/xorg.c
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@ -30,6 +30,7 @@ void insertItem(unsigned long value, KeyCode keycode) {
void deleteItem(unsigned long value) { void deleteItem(unsigned long value) {
node *myNode = head, *previous = NULL; node *myNode = head, *previous = NULL;
int i = 0;
while (myNode) { while (myNode) {
if (myNode->number == value) { if (myNode->number == value) {
@ -44,11 +45,17 @@ void deleteItem(unsigned long value) {
previous = myNode; previous = myNode;
myNode = myNode->next; myNode = myNode->next;
if (i++ > 120) {
// this should lead to a panic
printf("loop over limit");
break;
}
} }
} }
node *searchItemNode(unsigned long value) { node *searchItemNode(unsigned long value) {
node *searchNode = head; node *searchNode = head;
int i = 0;
while (searchNode) { while (searchNode) {
if (searchNode->number == value) { if (searchNode->number == value) {
@ -56,6 +63,12 @@ node *searchItemNode(unsigned long value) {
} }
searchNode = searchNode->next; searchNode = searchNode->next;
if (i++ > 120) {
// this should lead to a panic
printf("loop over limit");
break;
}
} }
return NULL; return NULL;
@ -151,24 +164,27 @@ void XButton(unsigned int button, int down) {
} }
} }
KeyCode XkbKeysymToKeycode(KeySym keysym) { KeyCode XkbKeysymToKeycode(Display *dpy, KeySym keysym) {
XkbDescPtr xkb; XkbDescPtr xkb;
XkbStateRec state; XkbStateRec state;
unsigned int mods;
unsigned keycode; unsigned keycode;
Display *dpy = getXDisplay();
xkb = XkbGetMap(dpy, XkbAllComponentsMask, XkbUseCoreKbd); xkb = XkbGetMap(dpy, XkbAllComponentsMask, XkbUseCoreKbd);
if (!xkb) if (!xkb)
return 0; return 0;
XkbGetState(dpy, XkbUseCoreKbd, &state); XkbGetState(dpy, XkbUseCoreKbd, &state);
// XkbStateFieldFromRec() doesn't work properly because
// state.lookup_mods isn't properly updated, so we do this manually
mods = XkbBuildCoreState(XkbStateMods(&state), state.group);
for (keycode = xkb->min_key_code; for (keycode = xkb->min_key_code;
keycode <= xkb->max_key_code; keycode <= xkb->max_key_code;
keycode++) { keycode++) {
KeySym cursym; KeySym cursym;
unsigned int mods; unsigned int out_mods;
XkbTranslateKeyCode(xkb, keycode, state.compat_state, &mods, &cursym); XkbTranslateKeyCode(xkb, keycode, mods, &out_mods, &cursym);
if (cursym == keysym) if (cursym == keysym)
break; break;
} }
@ -178,6 +194,11 @@ KeyCode XkbKeysymToKeycode(KeySym keysym) {
XkbFreeKeyboard(xkb, XkbAllComponentsMask, True); XkbFreeKeyboard(xkb, XkbAllComponentsMask, True);
// Shift+Tab is usually ISO_Left_Tab, but RFB hides this fact. Do
// another attempt if we failed the initial lookup
if ((keycode == 0) && (keysym == XK_Tab) && (mods & ShiftMask))
return XkbKeysymToKeycode(dpy, XK_ISO_Left_Tab);
return keycode; return keycode;
} }
@ -201,7 +222,7 @@ void XKey(unsigned long key, int down) {
} }
} }
code = XkbKeysymToKeycode(key); code = XkbKeysymToKeycode(display, key);
if (!code) { if (!code) {
int min, max, numcodes; int min, max, numcodes;
XDisplayKeycodes(display, &min, &max); XDisplayKeycodes(display, &min, &max);