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vconsole: upload font to /dev/tty1 and copy it to all allocated VTs

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This commit is contained in:
Kay Sievers 2013-01-15 02:25:56 +01:00
parent 554d1298b8
commit dd04aac97f
1 changed files with 60 additions and 14 deletions
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74
src/vconsole/vconsole-setup.c
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@ -33,6 +33,7 @@
#include <sys/wait.h>
#include <linux/tiocl.h>
#include <linux/kd.h>
#include <linux/vt.h>
#include "util.h"
#include "log.h"
@ -84,7 +85,7 @@ static int enable_utf8(int fd) {
return r;
}
static int load_keymap(const char *vc, const char *map, const char *map_toggle, bool utf8, pid_t *_pid) {
static int keymap_load(const char *vc, const char *map, const char *map_toggle, bool utf8, pid_t *_pid) {
const char *args[8];
int i = 0;
pid_t pid;
@ -119,7 +120,7 @@ static int load_keymap(const char *vc, const char *map, const char *map_toggle,
return 0;
}
static int load_font(const char *vc, const char *font, const char *map, const char *unimap, pid_t *_pid) {
static int font_load(const char *vc, const char *font, const char *map, const char *unimap, pid_t *_pid) {
const char *args[9];
int i = 0;
pid_t pid;
@ -157,6 +158,50 @@ static int load_font(const char *vc, const char *font, const char *map, const ch
return 0;
}
static void font_copy_to_all_vts(int fd, int from_vt) {
struct vt_stat vts;
unsigned short bits;
int i;
int r;
/* get 16 bit mask of used VT numbers */
zero(vts);
r = ioctl(fd, VT_GETSTATE, &vts);
if (r < 0)
return;
bits = vts.v_state;
for (i = 1; i <= 16; i++) {
char vtname[16];
int vtfd;
struct console_font_op cfo;
bool used;
/* skip unused VTs */
used = bits & 1;
bits >>= 1;
if (!used)
continue;
if (i == from_vt)
continue;
snprintf(vtname , sizeof(vtname), "/dev/tty%i", i);
vtfd = open_terminal(vtname, O_RDWR|O_CLOEXEC);
if (vtfd < 0)
continue;
/* copy font from from_vt to this VT */
zero(cfo);
cfo.op = KD_FONT_OP_COPY;
/* the index numbers seem to start at 0 for tty1 */
cfo.height = from_vt - 1;
ioctl(vtfd, KDFONTOP, &cfo);
close_nointr_nofail(vtfd);
}
}
int main(int argc, char **argv) {
const char *vc;
char *vc_keymap = NULL;
@ -166,8 +211,9 @@ int main(int argc, char **argv) {
char *vc_font_unimap = NULL;
int fd = -1;
bool utf8;
int r = EXIT_FAILURE;
pid_t font_pid = 0, keymap_pid = 0;
int font_copy_from_vt = 0;
int r = EXIT_FAILURE;
log_set_target(LOG_TARGET_AUTO);
log_parse_environment();
@ -177,8 +223,10 @@ int main(int argc, char **argv) {
if (argv[1])
vc = argv[1];
else
vc = "/dev/tty0";
else {
vc = "/dev/tty1";
font_copy_from_vt = 1;
}
fd = open_terminal(vc, O_RDWR|O_CLOEXEC);
if (fd < 0) {
@ -223,27 +271,25 @@ int main(int argc, char **argv) {
log_warning("Failed to read /etc/vconsole.conf: %s", strerror(-r));
}
if (r <= 0) {
}
r = EXIT_FAILURE;
if (utf8)
enable_utf8(fd);
else
disable_utf8(fd);
if (load_keymap(vc, vc_keymap, vc_keymap_toggle, utf8, &keymap_pid) >= 0 &&
load_font(vc, vc_font, vc_font_map, vc_font_unimap, &font_pid) >= 0)
r = EXIT_FAILURE;
if (keymap_load(vc, vc_keymap, vc_keymap_toggle, utf8, &keymap_pid) >= 0 &&
font_load(vc, vc_font, vc_font_map, vc_font_unimap, &font_pid) >= 0)
r = EXIT_SUCCESS;
finish:
if (keymap_pid > 0)
wait_for_terminate_and_warn(KBD_LOADKEYS, keymap_pid);
if (font_pid > 0)
if (font_pid > 0) {
wait_for_terminate_and_warn(KBD_SETFONT, font_pid);
if (font_copy_from_vt > 0)
font_copy_to_all_vts(fd, font_copy_from_vt);
}
free(vc_keymap);
free(vc_font);