/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ /*** This file is part of systemd. Copyright 2011 Lennart Poettering systemd is free software; you can redistribute it and/or modify it 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 Lesser General Public License for more details. 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 "util.h" #include "mkdir.h" int main(int argc, char *argv[]) { int i; const char *seat = NULL; char **new_argv; _cleanup_free_ char *path = NULL; int r; _cleanup_fclose_ FILE *f = NULL; /* 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. */ for (i = 1; i < argc; i++) if (streq(argv[i], "-seat")) seat = argv[i+1]; if (isempty(seat) || streq(seat, "seat0")) { argv[0] = (char*) X_SERVER; execv(X_SERVER, argv); log_error("Failed to execute real X server: %m"); goto fail; } 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_oom(); goto fail; } f = fopen(path, "we"); if (!f) { log_error("Failed to write configuration file: %m"); goto fail; } fprintf(f, "Section \"ServerFlags\"\n" " Option \"AutoAddDevices\" \"True\"\n" " Option \"AllowEmptyInput\" \"True\"\n" " Option \"DontVTSwitch\" \"True\"\n" "EndSection\n" "Section \"InputClass\"\n" " Identifier \"Force Input Devices to Seat\"\n" " Option \"GrabDevice\" \"True\"\n" "EndSection\n"); fflush(f); if (ferror(f)) { log_error("Failed to write configuration file: %m"); goto fail; } fclose(f); f = NULL; 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+0] = (char*) "-config"; new_argv[argc+1] = path; new_argv[argc+2] = (char*) "-sharevts"; new_argv[argc+3] = NULL; execv(X_SERVER, new_argv); log_error("Failed to execute real X server: %m"); fail: return EXIT_FAILURE; }