Copyright 2011 Lennart Poettering
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
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 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.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <string.h>
#include <unistd.h>
-#include <libudev.h>
-
#include "util.h"
#include "mkdir.h"
int main(int argc, char *argv[]) {
- struct udev *udev = NULL;
- struct udev_enumerate *enumerator = NULL;
- struct udev_list_entry *first, *item;
int i;
const char *seat = NULL;
char **new_argv;
- char *path = NULL, *device_node = NULL;
+ _cleanup_free_ char *path = NULL;
int r;
- FILE *f = NULL;
-
- /* This binary will go away as soon as X natively supports
- * display enumeration with udev in a way that covers both PCI
- * and USB. */
+ _cleanup_fclose_ FILE *f = NULL;
- /* This will simply determine the fb device id of the graphics
- * device assigned to a seat and write a configuration file
- * from it and then spawn the real X server. */
+ /* This binary will go away as soon as X natively takes the
+ * arguments in question as command line parameters, instead
+ * of requiring them in the configuration file. */
/* If this file is removed, don't forget to remove the code
* that invokes this in gdm and other display managers. */
goto fail;
}
- udev = udev_new();
- if (!udev) {
- log_error("Failed to allocate udev environment.");
- goto fail;
- }
-
- enumerator = udev_enumerate_new(udev);
- if (!enumerator) {
- log_error("Failed to allocate udev enumerator.");
- goto fail;
- }
-
- udev_enumerate_add_match_subsystem(enumerator, "graphics");
- udev_enumerate_add_match_tag(enumerator, seat);
-
- r = udev_enumerate_scan_devices(enumerator);
- if (r < 0) {
- log_error("Failed to enumerate devices.");
- goto fail;
- }
-
- first = udev_enumerate_get_list_entry(enumerator);
- udev_list_entry_foreach(item, first) {
- struct udev_device *d;
- const char *dn;
-
- d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item));
- if (!d)
- continue;
-
- dn = udev_device_get_devnode(d);
-
- if (dn) {
- device_node = strdup(dn);
- if (!device_node) {
- udev_device_unref(d);
- log_error("Out of memory.");
- goto fail;
- }
- }
-
- udev_device_unref(d);
-
- if (device_node)
- break;
- }
-
- if (!device_node) {
- log_error("Failed to find device node for seat %s.", seat);
- goto fail;
- }
-
- r = safe_mkdir("/run/systemd/multi-session-x", 0755, 0, 0);
+ r = mkdir_safe_label("/run/systemd/multi-session-x", 0755, 0, 0);
if (r < 0) {
log_error("Failed to create directory: %s", strerror(-r));
goto fail;
path = strappend("/run/systemd/multi-session-x/", seat);
if (!path) {
- log_error("Out of memory");
+ log_oom();
goto fail;
}
}
fprintf(f,
- "Section \"Device\"\n"
- " Identifier \"udev\"\n"
- " Driver \"fbdev\"\n"
- " Option \"fbdev\" \"%s\"\n"
- "EndSection\n"
"Section \"ServerFlags\"\n"
" Option \"AutoAddDevices\" \"True\"\n"
" Option \"AllowEmptyInput\" \"True\"\n"
"Section \"InputClass\"\n"
" Identifier \"Force Input Devices to Seat\"\n"
" Option \"GrabDevice\" \"True\"\n"
- "EndSection\n",
- device_node);
+ "EndSection\n");
fflush(f);
fclose(f);
f = NULL;
- new_argv = alloca(sizeof(char*) * (argc + 3 + 1));
+ new_argv = newa(char*, argc + 3 + 1);
memcpy(new_argv, argv, sizeof(char*) * (argc + 2 + 1));
new_argv[0] = (char*) X_SERVER;
new_argv[argc+2] = (char*) "-sharevts";
new_argv[argc+3] = NULL;
- udev_enumerate_unref(enumerator);
- enumerator = NULL;
-
- udev_unref(udev);
- udev = NULL;
-
- free(device_node);
- device_node = NULL;
-
execv(X_SERVER, new_argv);
log_error("Failed to execute real X server: %m");
fail:
- if (enumerator)
- udev_enumerate_unref(enumerator);
-
- if (udev)
- udev_unref(udev);
-
- free(path);
- free(device_node);
-
- if (f)
- fclose(f);
-
return EXIT_FAILURE;
}