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Systemd/src/vconsole-setup.c
Andrey Borzenkov 1de4d79bf5 build-sys: add Mandriva distribution support 
This merges several separate patches that I carry as part of
Mandriva systemd RPM. They touch those parts that are very
unlikely to be changed in near future and do not impose any
functionality change for systemd core. I also think it is
useful for troubleshooting to have real distribution name in
system logs, espicially when someone reports problem upstream.

The patch looks bigger than sum of replaced patches because

- previous patches were applied on top of distro=fedora, now
I need to add all those bits for distro=mandriva as well

- part of patch was done as spec file magic, but it seems more
logical to ship all these bits together
2011-03-08 19:47:36 +01:00

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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Kay Sievers
systemd is free software; you can 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdbool.h>
#include <stdarg.h>
#include <limits.h>
#include <locale.h>
#include <langinfo.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <linux/tiocl.h>
#include <linux/kd.h>
#include "util.h"
#include "log.h"
#include "macro.h"
static bool is_vconsole(int fd) {
unsigned char data[1];
data[0] = TIOCL_GETFGCONSOLE;
return ioctl(fd, TIOCLINUX, data) >= 0;
}
static bool is_locale_utf8(void) {
const char *set;
if (!setlocale(LC_ALL, ""))
return true;
set = nl_langinfo(CODESET);
if (!set)
return true;
return streq(set, "UTF-8");
}
static int disable_utf8(int fd) {
int r = 0, k;
if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
r = -errno;
if (loop_write(fd, "\033%@", 3, false) < 0)
r = -errno;
if ((k = write_one_line_file("/sys/module/vt/parameters/default_utf8", "0")) < 0)
r = k;
if (r < 0)
log_warning("Failed to disable UTF-8: %s", strerror(errno));
return r;
}
static int load_keymap(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;
args[i++] = KBD_LOADKEYS;
args[i++] = "-q";
args[i++] = "-C";
args[i++] = vc;
if (utf8)
args[i++] = "-u";
args[i++] = map;
if (map_toggle)
args[i++] = map_toggle;
args[i++] = NULL;
if ((pid = fork()) < 0) {
log_error("Failed to fork: %m");
return -errno;
} else if (pid == 0) {
execv(args[0], (char **) args);
_exit(EXIT_FAILURE);
}
*_pid = pid;
return 0;
}
static int load_font(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;
args[i++] = KBD_SETFONT;
args[i++] = "-C";
args[i++] = vc;
args[i++] = font;
if (map) {
args[i++] = "-m";
args[i++] = map;
}
if (unimap) {
args[i++] = "-u";
args[i++] = unimap;
}
args[i++] = NULL;
if ((pid = fork()) < 0) {
log_error("Failed to fork: %m");
return -errno;
} else if (pid == 0) {
execv(args[0], (char **) args);
_exit(EXIT_FAILURE);
}
*_pid = pid;
return 0;
}
int main(int argc, char **argv) {
const char *vc;
char *vc_keymap = NULL;
char *vc_keymap_toggle = NULL;
char *vc_font = NULL;
char *vc_font_map = NULL;
char *vc_font_unimap = NULL;
#ifdef TARGET_GENTOO
char *vc_unicode = NULL;
#endif
#ifdef TARGET_MANDRIVA
char *vc_keytable = NULL;
#endif
int fd = -1;
bool utf8;
int r = EXIT_FAILURE;
pid_t font_pid = 0, keymap_pid = 0;
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
log_parse_environment();
log_open();
if (argv[1])
vc = argv[1];
else
vc = "/dev/tty0";
if ((fd = open(vc, O_RDWR|O_CLOEXEC)) < 0) {
log_error("Failed to open %s: %m", vc);
goto finish;
}
if (!is_vconsole(fd)) {
log_error("Device %s is not a virtual console.", vc);
goto finish;
}
utf8 = is_locale_utf8();
if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
#ifdef TARGET_FEDORA
"SYSFONT", &vc_font,
"KEYTABLE", &vc_keymap,
#endif
"vconsole.keymap", &vc_keymap,
"vconsole.keymap.toggle", &vc_keymap_toggle,
"vconsole.font", &vc_font,
"vconsole.font.map", &vc_font_map,
"vconsole.font.unimap", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
}
/* Hmm, nothing set on the kernel cmd line? Then let's
* try /etc/vconsole.conf */
if (r <= 0 &&
(r = parse_env_file("/etc/vconsole.conf", NEWLINE,
"KEYMAP", &vc_keymap,
"KEYMAP_TOGGLE", &vc_keymap_toggle,
"FONT", &vc_font,
"FONT_MAP", &vc_font_map,
"FONT_UNIMAP", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/vconsole.conf: %s", strerror(-r));
}
if (r <= 0) {
#ifdef TARGET_FEDORA
if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
"SYSFONT", &vc_font,
"SYSFONTACM", &vc_font_map,
"UNIMAP", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
"KEYTABLE", &vc_keymap,
"KEYMAP", &vc_keymap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
}
if (access("/etc/sysconfig/console/default.kmap", F_OK) >= 0) {
char *t;
if (!(t = strdup("/etc/sysconfig/console/default.kmap"))) {
log_error("Out of memory.");
goto finish;
}
free(vc_keymap);
vc_keymap = t;
}
#elif defined(TARGET_SUSE)
if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
"KEYTABLE", &vc_keymap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/keyboard: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/sysconfig/console", NEWLINE,
"CONSOLE_FONT", &vc_font,
"CONSOLE_SCREENMAP", &vc_font_map,
"CONSOLE_UNICODEMAP", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/console: %s", strerror(-r));
}
#elif defined(TARGET_ARCH)
if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
"KEYMAP", &vc_keymap,
"CONSOLEFONT", &vc_font,
"CONSOLEMAP", &vc_font_map,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
}
#elif defined(TARGET_FRUGALWARE)
if ((r = parse_env_file("/etc/sysconfig/keymap", NEWLINE,
"keymap", &vc_keymap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/keymap: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/sysconfig/font", NEWLINE,
"font", &vc_font,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/font: %s", strerror(-r));
}
#elif defined(TARGET_ALTLINUX)
if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
"KEYTABLE", &vc_keymap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/keyboard: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/sysconfig/consolefont", NEWLINE,
"SYSFONT", &vc_font,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/console: %s", strerror(-r));
}
#elif defined(TARGET_GENTOO)
if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
"unicode", &vc_unicode,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
}
if (vc_unicode) {
int rc_unicode;
if ((rc_unicode = parse_boolean(vc_unicode)) < 0)
log_error("Unknown value for /etc/rc.conf unicode=%s", vc_unicode);
else {
if (rc_unicode && !utf8)
log_warning("/etc/rc.conf wants unicode, but current locale is not UTF-8 capable!");
else if (!rc_unicode && utf8) {
log_debug("/etc/rc.conf does not want unicode, leave it on in kernel but does not apply to vconsole.");
utf8 = false;
}
}
}
/* /etc/conf.d/consolefont comments and gentoo
* documentation mention uppercase, but the actual
* contents are lowercase. the existing
* /etc/init.d/consolefont tries both
*/
if ((r = parse_env_file("/etc/conf.d/consolefont", NEWLINE,
"CONSOLEFONT", &vc_font,
"consolefont", &vc_font,
"consoletranslation", &vc_font_map,
"CONSOLETRANSLATION", &vc_font_map,
"unicodemap", &vc_font_unimap,
"UNICODEMAP", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/conf.d/consolefont: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/conf.d/keymaps", NEWLINE,
"keymap", &vc_keymap,
"KEYMAP", &vc_keymap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/conf.d/keymaps: %s", strerror(-r));
}
#elif defined(TARGET_MANDRIVA)
if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
"SYSFONT", &vc_font,
"SYSFONTACM", &vc_font_map,
"UNIMAP", &vc_font_unimap,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
}
if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
"KEYTABLE", &vc_keytable,
"KEYMAP", &vc_keymap,
"UNIKEYTABLE", &vc_keymap,
"GRP_TOGGLE", &vc_keymap_toggle,
NULL)) < 0) {
if (r != -ENOENT)
log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
}
if (vc_keytable) {
if (vc_keymap)
free(vc_keymap);
if (utf8) {
if (endswith(vc_keytable, ".uni") || strstr(vc_keytable, ".uni."))
vc_keymap = strdup(vc_keytable);
else {
char *s;
if ((s = strstr(vc_keytable, ".map")))
vc_keytable[s-vc_keytable+1] = '\0';
vc_keymap = strappend(vc_keytable, ".uni");
}
} else
vc_keymap = strdup(vc_keytable);
free(vc_keytable);
if (!vc_keymap) {
log_error("Out of memory.");
goto finish;
}
}
if (access("/etc/sysconfig/console/default.kmap", F_OK) >= 0) {
char *t;
if (!(t = strdup("/etc/sysconfig/console/default.kmap"))) {
log_error("Out of memory.");
goto finish;
}
free(vc_keymap);
vc_keymap = t;
}
#endif
}
if (!vc_keymap)
vc_keymap = strdup("us");
if (!vc_font)
vc_font = strdup(DEFAULT_FONT);
if (!vc_keymap || !vc_font) {
log_error("Failed to allocate strings.");
goto finish;
}
if (!utf8)
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_SUCCESS;
finish:
if (keymap_pid > 0)
wait_for_terminate_and_warn(KBD_LOADKEYS, keymap_pid);
if (font_pid > 0)
wait_for_terminate_and_warn(KBD_SETFONT, font_pid);
free(vc_keymap);
free(vc_font);
free(vc_font_map);
free(vc_font_unimap);
if (fd >= 0)
close_nointr_nofail(fd);
return r;
}
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