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Merge pull request #14 from DomiStyle/keycode-hack
Keycode hack
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,230 @@ | ||
| // from https://github.com/anchor/idrac-kvm-keyboard-fix | ||
| /* | ||
| * Shared library hack to translate evdev keycodes to old style keycodes. | ||
| */ | ||
| #include <stdio.h> | ||
| #include <unistd.h> | ||
| #include <dlfcn.h> | ||
| #include <X11/Xlib.h> | ||
| #include <X11/keysym.h> | ||
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| static int (*real_XNextEvent)(Display *, XEvent *) = NULL; | ||
| static KeyCode (*real_XKeysymToKeycode)(Display *, KeySym) = NULL; | ||
| static KeySym (*sym_XKeycodeToKeysym)(Display *, KeyCode, int) = NULL; | ||
| static int hack_initialised = 0; | ||
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| #define DEBUG 0 | ||
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| #ifdef DEBUG | ||
| static FILE *fd = NULL; | ||
| #endif | ||
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| static void | ||
| hack_init(void) | ||
| { | ||
| void *h; | ||
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| h = dlopen("libX11.so", RTLD_LAZY); | ||
| if (h == NULL) { | ||
| h = dlopen("libX11.so.6", RTLD_LAZY); | ||
| if (h == NULL) { | ||
| fprintf(stderr, "Unable to open libX11\n"); | ||
| _exit(1); | ||
| } | ||
| } | ||
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| real_XNextEvent = dlsym(h, "XNextEvent"); | ||
| if (real_XNextEvent == NULL) { | ||
| fprintf(stderr, "Unable to find symbol\n"); | ||
| _exit(1); | ||
| } | ||
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| real_XKeysymToKeycode = dlsym(h, "XKeysymToKeycode"); | ||
| if (real_XKeysymToKeycode == NULL) { | ||
| fprintf(stderr, "Unable to find symbol\n"); | ||
| _exit(1); | ||
| } | ||
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| sym_XKeycodeToKeysym = dlsym(h, "XKeycodeToKeysym"); | ||
| if (sym_XKeycodeToKeysym == NULL) { | ||
| fprintf(stderr, "Unable to find symbol\n"); | ||
| _exit(1); | ||
| } | ||
|
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| #ifdef DEBUG | ||
| if (fd == NULL) { | ||
| fd = fopen("/tmp/keycode-log", "a"); | ||
| if (fd == NULL) | ||
| fprintf(stderr, "Unable to open key-log\n"); | ||
| } | ||
| #endif | ||
|
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| hack_initialised = 1; | ||
| } | ||
|
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| int | ||
| XNextEvent(Display *display, XEvent *event) | ||
| { | ||
| int r; | ||
|
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| if (!hack_initialised) | ||
| hack_init(); | ||
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| r = real_XNextEvent(display, event); | ||
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| if (event->type == KeyPress || event->type == KeyRelease) { | ||
| XKeyEvent *keyevent; | ||
| KeySym keysym; | ||
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| keyevent = (XKeyEvent *)event; | ||
| #ifdef DEBUG | ||
| fprintf(fd, "KeyEvent: %d\n", keyevent->keycode); | ||
| fflush(fd); | ||
| #endif | ||
|
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| /* mangle keycodes */ | ||
| keysym = sym_XKeycodeToKeysym(display, keyevent->keycode, 0); | ||
| switch (keysym) { | ||
| /* Modifiers */ | ||
| case XK_Shift_R: keyevent->keycode = 62; break; | ||
| case XK_Shift_L: keyevent->keycode = 50; break; | ||
| case XK_Control_L: keyevent->keycode = 37; break; | ||
| case XK_Control_R: keyevent->keycode = 105; break; | ||
| case XK_Alt_L: keyevent->keycode = 64; break; | ||
| case XK_Alt_R: keyevent->keycode = 108; break; | ||
| case XK_Super_R: keyevent->keycode = 143; break; | ||
| case XK_Caps_Lock: keyevent->keycode = 66; break; | ||
| case XK_Num_Lock: keyevent->keycode = 77; break; | ||
|
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| /* Extended keyboard navigation keys */ | ||
| case XK_Home: keyevent->keycode = 110; break; | ||
| case XK_End: keyevent->keycode = 115; break; | ||
| case XK_Prior: keyevent->keycode = 112; break; | ||
| case XK_Next: keyevent->keycode = 117; break; | ||
| case XK_Delete: keyevent->keycode = 119; break; | ||
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| /* Numeric keypad keys */ | ||
| case XK_KP_Equal: keyevent->keycode = 125; break; | ||
| case XK_KP_Divide: keyevent->keycode = 106; break; | ||
| case XK_KP_Multiply: keyevent->keycode = 63; break; | ||
| case XK_KP_Subtract: keyevent->keycode = 82; break; | ||
| case XK_KP_Add: keyevent->keycode = 86; break; | ||
| case XK_KP_Enter: keyevent->keycode = 104; break; | ||
| case XK_KP_Decimal: keyevent->keycode = 91; break; | ||
| case XK_KP_0: keyevent->keycode = 90; break; | ||
| case XK_KP_1: keyevent->keycode = 87; break; | ||
| case XK_KP_2: keyevent->keycode = 88; break; | ||
| case XK_KP_3: keyevent->keycode = 89; break; | ||
| case XK_KP_4: keyevent->keycode = 83; break; | ||
| case XK_KP_5: keyevent->keycode = 84; break; | ||
| case XK_KP_6: keyevent->keycode = 85; break; | ||
| case XK_KP_7: keyevent->keycode = 79; break; | ||
| case XK_KP_8: keyevent->keycode = 80; break; | ||
| case XK_KP_9: keyevent->keycode = 81; break; | ||
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| /* top row - function keys */ | ||
| case XK_Escape: keyevent->keycode = 9; break; | ||
| case XK_F1: keyevent->keycode = 67; break; | ||
| case XK_F2: keyevent->keycode = 68; break; | ||
| case XK_F3: keyevent->keycode = 69; break; | ||
| case XK_F4: keyevent->keycode = 70; break; | ||
| case XK_F5: keyevent->keycode = 71; break; | ||
| case XK_F6: keyevent->keycode = 72; break; | ||
| case XK_F7: keyevent->keycode = 73; break; | ||
| case XK_F8: keyevent->keycode = 74; break; | ||
| case XK_F9: keyevent->keycode = 75; break; | ||
| case XK_F10: keyevent->keycode = 76; break; | ||
| case XK_F11: keyevent->keycode = 95; break; | ||
| case XK_F12: keyevent->keycode = 96; break; | ||
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| /* Second row: numeric keys, 12345 */ | ||
| case XK_grave: keyevent->keycode = 49; break; | ||
| case XK_1: keyevent->keycode = 10; break; | ||
| case XK_2: keyevent->keycode = 11; break; | ||
| case XK_3: keyevent->keycode = 12; break; | ||
| case XK_4: keyevent->keycode = 13; break; | ||
| case XK_5: keyevent->keycode = 14; break; | ||
| case XK_6: keyevent->keycode = 15; break; | ||
| case XK_7: keyevent->keycode = 16; break; | ||
| case XK_8: keyevent->keycode = 17; break; | ||
| case XK_9: keyevent->keycode = 18; break; | ||
| case XK_0: keyevent->keycode = 19; break; | ||
| case XK_minus: keyevent->keycode = 20; break; | ||
| case XK_equal: keyevent->keycode = 21; break; | ||
| case XK_BackSpace: keyevent->keycode = 22; break; | ||
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| /* Third row: qwerty */ | ||
| case XK_Tab: keyevent->keycode = 23; break; | ||
| case XK_q: keyevent->keycode = 24; break; | ||
| case XK_w: keyevent->keycode = 25; break; | ||
| case XK_e: keyevent->keycode = 26; break; | ||
| case XK_r: keyevent->keycode = 27; break; | ||
| case XK_t: keyevent->keycode = 28; break; | ||
| case XK_y: keyevent->keycode = 29; break; | ||
| case XK_u: keyevent->keycode = 30; break; | ||
| case XK_i: keyevent->keycode = 31; break; | ||
| case XK_o: keyevent->keycode = 32; break; | ||
| case XK_p: keyevent->keycode = 33; break; | ||
| case XK_bracketleft: keyevent->keycode = 34; break; | ||
| case XK_bracketright: keyevent->keycode = 35; break; | ||
| case XK_backslash: keyevent->keycode = 51; break; | ||
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| /* Fourth row: asdf */ | ||
| case XK_a: keyevent->keycode = 38; break; | ||
| case XK_s: keyevent->keycode = 39; break; | ||
| case XK_d: keyevent->keycode = 40; break; | ||
| case XK_f: keyevent->keycode = 41; break; | ||
| case XK_g: keyevent->keycode = 42; break; | ||
| case XK_h: keyevent->keycode = 43; break; | ||
| case XK_j: keyevent->keycode = 44; break; | ||
| case XK_k: keyevent->keycode = 45; break; | ||
| case XK_l: keyevent->keycode = 46; break; | ||
| case XK_semicolon: keyevent->keycode = 47; break; | ||
| case XK_apostrophe: keyevent->keycode = 48; break; | ||
| case XK_Return: keyevent->keycode = 36; break; | ||
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| /* Fifth row: zxcv */ | ||
| case XK_z: keyevent->keycode = 52; break; | ||
| case XK_x: keyevent->keycode = 53; break; | ||
| case XK_c: keyevent->keycode = 54; break; | ||
| case XK_v: keyevent->keycode = 55; break; | ||
| case XK_b: keyevent->keycode = 56; break; | ||
| case XK_n: keyevent->keycode = 57; break; | ||
| case XK_m: keyevent->keycode = 58; break; | ||
| case XK_comma: keyevent->keycode = 59; break; | ||
| case XK_period: keyevent->keycode = 60; break; | ||
| case XK_slash: keyevent->keycode = 61; break; | ||
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| case XK_space: keyevent->keycode = 65; break; | ||
|
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| /* Arrow keys */ | ||
| case XK_Up: keyevent->keycode = 98; break; | ||
| case XK_Left: keyevent->keycode = 100; break; | ||
| case XK_Right: keyevent->keycode = 102; break; | ||
| case XK_Down: keyevent->keycode = 104; break; | ||
|
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| } | ||
| } | ||
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| return r; | ||
| } | ||
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| #ifdef DEBUG | ||
| KeyCode | ||
| XKeysymToKeycode(Display *display, KeySym keysym) | ||
| { | ||
| KeyCode keycode; | ||
|
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| if (!hack_initialised) | ||
| hack_init(); | ||
|
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| keycode = real_XKeysymToKeycode(display, keysym); | ||
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| fprintf(fd, "XKeysymToKeycode: %d\n", keycode); | ||
| fflush(fd); | ||
|
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| return keycode; | ||
| } | ||
| #endif |
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