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ec291872 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <string.h> | |
23 | #include <unistd.h> | |
24 | ||
ec291872 LP |
25 | #include "util.h" |
26 | #include "mkdir.h" | |
27 | ||
28 | int main(int argc, char *argv[]) { | |
29 | ||
ec291872 LP |
30 | int i; |
31 | const char *seat = NULL; | |
32 | char **new_argv; | |
aaeef058 | 33 | _cleanup_free_ char *path = NULL; |
ec291872 | 34 | int r; |
aaeef058 | 35 | _cleanup_fclose_ FILE *f = NULL; |
ec291872 | 36 | |
aaeef058 LP |
37 | /* This binary will go away as soon as X natively takes the |
38 | * arguments in question as command line parameters, instead | |
39 | * of requiring them in the configuration file. */ | |
ec291872 LP |
40 | |
41 | /* If this file is removed, don't forget to remove the code | |
42 | * that invokes this in gdm and other display managers. */ | |
43 | ||
44 | for (i = 1; i < argc; i++) | |
45 | if (streq(argv[i], "-seat")) | |
46 | seat = argv[i+1]; | |
47 | ||
48 | if (isempty(seat) || streq(seat, "seat0")) { | |
49 | argv[0] = (char*) X_SERVER; | |
50 | execv(X_SERVER, argv); | |
51 | log_error("Failed to execute real X server: %m"); | |
52 | goto fail; | |
53 | } | |
54 | ||
ec291872 LP |
55 | r = mkdir_safe_label("/run/systemd/multi-session-x", 0755, 0, 0); |
56 | if (r < 0) { | |
57 | log_error("Failed to create directory: %s", strerror(-r)); | |
58 | goto fail; | |
59 | } | |
60 | ||
61 | path = strappend("/run/systemd/multi-session-x/", seat); | |
62 | if (!path) { | |
63 | log_oom(); | |
64 | goto fail; | |
65 | } | |
66 | ||
67 | f = fopen(path, "we"); | |
68 | if (!f) { | |
69 | log_error("Failed to write configuration file: %m"); | |
70 | goto fail; | |
71 | } | |
72 | ||
73 | fprintf(f, | |
ec291872 LP |
74 | "Section \"ServerFlags\"\n" |
75 | " Option \"AutoAddDevices\" \"True\"\n" | |
76 | " Option \"AllowEmptyInput\" \"True\"\n" | |
77 | " Option \"DontVTSwitch\" \"True\"\n" | |
78 | "EndSection\n" | |
79 | "Section \"InputClass\"\n" | |
80 | " Identifier \"Force Input Devices to Seat\"\n" | |
81 | " Option \"GrabDevice\" \"True\"\n" | |
e57d4fa3 | 82 | "EndSection\n"); |
ec291872 LP |
83 | |
84 | fflush(f); | |
85 | ||
86 | if (ferror(f)) { | |
87 | log_error("Failed to write configuration file: %m"); | |
88 | goto fail; | |
89 | } | |
90 | ||
91 | fclose(f); | |
92 | f = NULL; | |
93 | ||
aaeef058 | 94 | new_argv = newa(char*, argc + 3 + 1); |
ec291872 LP |
95 | memcpy(new_argv, argv, sizeof(char*) * (argc + 2 + 1)); |
96 | ||
97 | new_argv[0] = (char*) X_SERVER; | |
98 | new_argv[argc+0] = (char*) "-config"; | |
99 | new_argv[argc+1] = path; | |
100 | new_argv[argc+2] = (char*) "-sharevts"; | |
101 | new_argv[argc+3] = NULL; | |
102 | ||
ec291872 LP |
103 | execv(X_SERVER, new_argv); |
104 | log_error("Failed to execute real X server: %m"); | |
105 | ||
106 | fail: | |
ec291872 LP |
107 | return EXIT_FAILURE; |
108 | } |