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#include "config.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <linux/kd.h>
#include <linux/keyboard.h>
#include <unistd.h>
#include "keymap.h"
#include "libcommon.h"
#include "contextP.h"
#include "ksyms.h"
static int
defkeys(struct lk_ctx *ctx, int fd, int kbd_mode)
{
struct kbentry ke;
int ct = 0;
int i, j, fail;
if (ctx->flags & LK_FLAG_UNICODE_MODE) {
/* temporarily switch to K_UNICODE while defining keys */
if (ioctl(fd, KDSKBMODE, K_UNICODE)) {
ERR(ctx, _("KDSKBMODE: %s: could not switch to Unicode mode"),
strerror(errno));
goto fail;
}
}
for (i = 0; i < MAX_NR_KEYMAPS; i++) {
int exist = lk_map_exists(ctx, i);
if (exist) {
for (j = 0; j < NR_KEYS; j++) {
if (!lk_key_exists(ctx, i, j))
continue;
int value = lk_get_key(ctx, i, j);
if (value < 0 || value > USHRT_MAX) {
WARN(ctx, _("can not bind key %d to value %d because it is too large"), j, value);
continue;
}
ke.kb_index = (unsigned char) j;
ke.kb_table = (unsigned char) i;
ke.kb_value = (unsigned short) value;
fail = ioctl(fd, KDSKBENT, (unsigned long)&ke);
if (fail) {
if (errno == EPERM) {
ERR(ctx, _("Keymap %d: Permission denied"), i);
j = NR_KEYS;
continue;
}
ERR(ctx, "%s", strerror(errno));
} else
ct++;
INFO(ctx, _("keycode %d, table %d = %d%s"),
j, i, ke.kb_value, fail ? _(" FAILED") : "");
if (fail)
WARN(ctx, _("failed to bind key %d to value %d"),
j, ke.kb_value);
}
} else if ((ctx->keywords & LK_KEYWORD_KEYMAPS) && !exist) {
/* deallocate keymap */
ke.kb_index = 0;
ke.kb_table = (unsigned char) i;
ke.kb_value = K_NOSUCHMAP;
DBG(ctx, _("deallocate keymap %d"), i);
if (ioctl(fd, KDSKBENT, (unsigned long)&ke)) {
if (errno != EINVAL) {
ERR(ctx, _("KDSKBENT: %s: could not deallocate keymap %d"),
strerror(errno), i);
goto fail;
}
/* probably an old kernel */
/* clear keymap by hand */
for (j = 0; j < NR_KEYS; j++) {
ke.kb_index = (unsigned char) j;
ke.kb_table = (unsigned char) i;
ke.kb_value = K_HOLE;
if (ioctl(fd, KDSKBENT, (unsigned long)&ke)) {
if (errno == EINVAL && i >= 16)
break; /* old kernel */
ERR(ctx, _("KDSKBENT: %s: cannot deallocate or clear keymap"),
strerror(errno));
goto fail;
}
}
}
}
}
if ((ctx->flags & LK_FLAG_UNICODE_MODE) && ioctl(fd, KDSKBMODE, kbd_mode)) {
ERR(ctx, _("KDSKBMODE: %s: could not return to original keyboard mode"),
strerror(errno));
goto fail;
}
return ct;
fail:
return -1;
}
static char *
ostr(struct lk_ctx *ctx, char *s)
{
size_t lth = strlen(s);
char *ns0 = malloc(4 * lth + 1);
char *ns = ns0;
if (ns == NULL) {
ERR(ctx, _("out of memory"));
return NULL;
}
while (*s) {
switch (*s) {
case '\n':
*ns++ = '\\';
*ns++ = 'n';
break;
case '\033':
*ns++ = '\\';
*ns++ = '0';
*ns++ = '3';
*ns++ = '3';
break;
default:
*ns++ = *s;
}
s++;
}
*ns = 0;
return ns0;
}
static int
deffuncs(struct lk_ctx *ctx, int fd)
{
unsigned int i;
int ct = 0;
char *ptr, *s;
struct kbsentry kbs;
for (i = 0; i < MAX_NR_FUNC; i++) {
kbs.kb_func = (unsigned char) i;
ptr = lk_array_get_ptr(ctx->func_table, i);
if (ptr) {
strcpy((char *)kbs.kb_string, ptr);
if (ioctl(fd, KDSKBSENT, (unsigned long)&kbs)) {
s = ostr(ctx, (char *)kbs.kb_string);
if (s == NULL)
return -1;
ERR(ctx, _("failed to bind string '%s' to function %s"),
s, get_sym(ctx, KT_FN, kbs.kb_func));
free(s);
} else {
ct++;
}
} else if (ctx->flags & LK_FLAG_CLEAR_STRINGS) {
kbs.kb_string[0] = 0;
if (ioctl(fd, KDSKBSENT, (unsigned long)&kbs)) {
ERR(ctx, _("failed to clear string %s"),
get_sym(ctx, KT_FN, kbs.kb_func));
} else {
ct++;
}
}
}
return ct;
}
static int
defdiacs(struct lk_ctx *ctx, int fd)
{
unsigned int i, j, count;
struct lk_kbdiacr *ptr;
if (ctx->accent_table->count > MAX_DIACR) {
count = MAX_DIACR;
ERR(ctx, _("too many compose definitions"));
} else {
count = (unsigned int) ctx->accent_table->count;
}
#ifdef KDSKBDIACRUC
if (ctx->flags & LK_FLAG_PREFER_UNICODE) {
struct kbdiacrsuc kdu;
kdu.kb_cnt = count;
for (i = 0, j = 0; i < ctx->accent_table->total && j < count; i++) {
ptr = lk_array_get_ptr(ctx->accent_table, i);
if (!ptr)
continue;
kdu.kbdiacruc[j].diacr = ptr->diacr;
kdu.kbdiacruc[j].base = ptr->base;
kdu.kbdiacruc[j].result = ptr->result;
j++;
}
if (ioctl(fd, KDSKBDIACRUC, (unsigned long)&kdu)) {
ERR(ctx, "KDSKBDIACRUC: %s", strerror(errno));
return -1;
}
} else
#endif
{
struct kbdiacrs kd;
kd.kb_cnt = count;
for (i = 0, j = 0; i < ctx->accent_table->total && j < count; i++) {
ptr = lk_array_get_ptr(ctx->accent_table, i);
if (!ptr)
continue;
if (ptr->diacr > UCHAR_MAX ||
ptr->base > UCHAR_MAX ||
ptr->result > UCHAR_MAX) {
ERR(ctx, "unable to load compose definitions because some of them are too large");
return -1;
}
kd.kbdiacr[j].diacr = (unsigned char) ptr->diacr;
kd.kbdiacr[j].base = (unsigned char) ptr->base;
kd.kbdiacr[j].result = (unsigned char) ptr->result;
j++;
}
if (ioctl(fd, KDSKBDIACR, (unsigned long)&kd)) {
ERR(ctx, "KDSKBDIACR: %s", strerror(errno));
return -1;
}
}
return (int) count;
}
int lk_load_keymap(struct lk_ctx *ctx, int fd, int kbd_mode)
{
int keyct, funcct, diacct;
if (lk_add_constants(ctx) < 0)
return -1;
if ((keyct = defkeys(ctx, fd, kbd_mode)) < 0 || (funcct = deffuncs(ctx, fd)) < 0)
return -1;
INFO(ctx, P_("\nChanged %d key", "\nChanged %d keys", (unsigned int) keyct), keyct);
INFO(ctx, P_("Changed %d string", "Changed %d strings", (unsigned int) funcct), funcct);
if (ctx->accent_table->count > 0 || ctx->flags & LK_FLAG_CLEAR_COMPOSE) {
diacct = defdiacs(ctx, fd);
if (diacct < 0)
return -1;
INFO(ctx, P_("Loaded %d compose definition",
"Loaded %d compose definitions", (unsigned int) diacct),
diacct);
} else {
INFO(ctx, _("(No change in compose definitions)"));
}
return 0;
}
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