Merge pull request #180 from mgorny/evdev-genkeys

Generate correct xfree86 keymaps when evdev is used

genkeymap/Makefile.am

@@ -2,7 +2,7 @@
 bin_PROGRAMS = \
   xrdp-genkeymap
 
-xrdp_genkeymap_SOURCES = genkeymap.c
+xrdp_genkeymap_SOURCES = genkeymap.c evdev-map.c
 
 xrdp_genkeymap_LDADD = \
   -L/usr/X11R6/lib \

genkeymap/evdev-map.c

@@ -0,0 +1,156 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
+/*
+ * evdev-map.c
+ * Copyright (C) Michał Górny 2014 <mgorny@gentoo.org>
+ *
+ * You may redistribute it and/or modify it under the terms of the
+ * GNU General Public License, as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * main.cc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with main.cc.  If not, write to:
+ * The Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor
+ * Boston, MA  02110-1301, USA
+ *
+ * xfree86(base)->evdev keycode mapping
+ */
+
+int xfree86_to_evdev[137-8+1] = {
+    /* MDSW */ 203,
+    /* ESC */ 9,
+    /* AE01 */ 10,
+    /* AE02 */ 11,
+    /* AE03 */ 12,
+    /* AE04 */ 13,
+    /* AE05 */ 14,
+    /* AE06 */ 15,
+    /* AE07 */ 16,
+    /* AE08 */ 17,
+    /* AE09 */ 18,
+    /* AE10 */ 19,
+    /* AE11 */ 20,
+    /* AE12 */ 21,
+    /* BKSP */ 22,
+    /* TAB */ 23,
+    /* AD01 */ 24,
+    /* AD02 */ 25,
+    /* AD03 */ 26,
+    /* AD04 */ 27,
+    /* AD05 */ 28,
+    /* AD06 */ 29,
+    /* AD07 */ 30,
+    /* AD08 */ 31,
+    /* AD09 */ 32,
+    /* AD10 */ 33,
+    /* AD11 */ 34,
+    /* AD12 */ 35,
+    /* RTRN */ 36,
+    /* LCTL */ 37,
+    /* AC01 */ 38,
+    /* AC02 */ 39,
+    /* AC03 */ 40,
+    /* AC04 */ 41,
+    /* AC05 */ 42,
+    /* AC06 */ 43,
+    /* AC07 */ 44,
+    /* AC08 */ 45,
+    /* AC09 */ 46,
+    /* AC10 */ 47,
+    /* AC11 */ 48,
+    /* TLDE */ 49,
+    /* LFSH */ 50,
+    /* BKSL */ 51,
+    /* AB01 */ 52,
+    /* AB02 */ 53,
+    /* AB03 */ 54,
+    /* AB04 */ 55,
+    /* AB05 */ 56,
+    /* AB06 */ 57,
+    /* AB07 */ 58,
+    /* AB08 */ 59,
+    /* AB09 */ 60,
+    /* AB10 */ 61,
+    /* RTSH */ 62,
+    /* KPMU */ 63,
+    /* LALT */ 64,
+    /* SPCE */ 65,
+    /* CAPS */ 66,
+    /* FK01 */ 67,
+    /* FK02 */ 68,
+    /* FK03 */ 69,
+    /* FK04 */ 70,
+    /* FK05 */ 71,
+    /* FK06 */ 72,
+    /* FK07 */ 73,
+    /* FK08 */ 74,
+    /* FK09 */ 75,
+    /* FK10 */ 76,
+    /* NMLK */ 77,
+    /* SCLK */ 78,
+    /* KP7 */ 79,
+    /* KP8 */ 80,
+    /* KP9 */ 81,
+    /* KPSU */ 82,
+    /* KP4 */ 83,
+    /* KP5 */ 84,
+    /* KP6 */ 85,
+    /* KPAD */ 86,
+    /* KP1 */ 87,
+    /* KP2 */ 88,
+    /* KP3 */ 89,
+    /* KP0 */ 90,
+    /* KPDL */ 91,
+    /* SYRQ */ 107,
+    /* II5D */ 0,
+    /* LSGT */ 94,
+    /* FK11 */ 95,
+    /* FK12 */ 96,
+    /* HOME */ 110,
+    /* UP */ 111,
+    /* PGUP */ 112,
+    /* LEFT */ 113,
+    /* II65 */ 0,
+    /* RGHT */ 114,
+    /* END */ 115,
+    /* DOWN */ 116,
+    /* PGDN */ 117,
+    /* INS */ 118,
+    /* DELE */ 119,
+    /* KPEN */ 104,
+    /* RCTL */ 105,
+    /* PAUS */ 127,
+    /* PRSC */ 107,
+    /* KPDV */ 106,
+    /* RALT */ 108,
+    /* BRK */ 419,
+    /* LWIN */ 133,
+    /* RWIN */ 134,
+    /* MENU */ 0,
+    /* FK13 */ 191,
+    /* FK14 */ 192,
+    /* FK15 */ 193,
+    /* FK16 */ 194,
+    /* FK17 */ 195,
+    /* KPDC */ 0,
+    /* LVL3 */ 92,
+    /* ALT */ 204,
+    /* KPEQ */ 125,
+    /* SUPR */ 206,
+    /* HYPR */ 207,
+    /* XFER */ 0,
+    /* I02 */ 0,
+    /* NFER */ 0,
+    /* I04 */ 0,
+    /* AE13 */ 132,
+    /* I06 */ 0,
+    /* I07 */ 0,
+    0,
+    0
+};

genkeymap/genkeymap.c

@@ -37,8 +37,11 @@
 #include <string.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
+#include <X11/XKBlib.h>
 #include <locale.h>
 
+extern int xfree86_to_evdev[137-8];
+
 int main(int argc, char **argv)
 {
     const char *programname;
@@ -57,6 +60,9 @@ int main(int argc, char **argv)
     FILE *outf;
     XKeyPressedEvent e;
     wchar_t wtext[256];
+    XkbDescPtr kbdesc;
+    char *symatom;
+    int is_evdev;
 
     setlocale(LC_CTYPE, "");
     programname = argv[0];
@@ -78,6 +84,30 @@ int main(int argc, char **argv)
         return 1;
     }
 
+    /* check whether evdev is used */
+    kbdesc = XkbAllocKeyboard();
+    if (!kbdesc)
+    {
+        fprintf(stderr, "%s:  unable to allocate keyboard desc\n",
+                programname);
+        XCloseDisplay(dpy);
+        return 1;
+    }
+
+    if (XkbGetNames(dpy, XkbKeycodesNameMask, kbdesc) != Success)
+    {
+        fprintf(stderr, "%s:  unable to obtain keycode name for keyboard\n",
+                programname);
+        XkbFreeKeyboard(kbdesc, 0, True);
+        XCloseDisplay(dpy);
+        return 1;
+    }
+
+    symatom = XGetAtomName(dpy, kbdesc->names->keycodes);
+    is_evdev = !strncmp(symatom, "evdev", 5);
+    XFree(symatom);
+    XkbFreeKeyboard(kbdesc, 0, True);
+
     outf = fopen(outfname, "w");
 
     if (outf == NULL)
@@ -101,7 +131,10 @@ int main(int argc, char **argv)
 
         for (i = 8; i <= 137; i++) /* Keycodes */
         {
-            e.keycode = i;
+            if (is_evdev)
+                e.keycode = xfree86_to_evdev[i-8];
+            else
+                e.keycode = i;
             nbytes = XLookupString(&e, text, 255, &ks, NULL);
             text[nbytes] = 0;
             char_count = mbstowcs(wtext, text, 255);