2 This file is part of systemd.
4 Copyright 2010 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
23 #if 0 /// elogind needs the systems udev header
29 #include "alloc-util.h"
30 #include "locale-util.h"
31 #include "path-util.h"
32 #include "string-util.h"
33 #include "sysfs-show.h"
34 #include "terminal-util.h"
35 #include "udev-util.h"
38 static int show_sysfs_one(
41 struct udev_list_entry **item,
52 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
53 struct udev_list_entry *next, *lookahead;
54 const char *sn, *name, *sysfs, *subsystem, *sysname;
55 _cleanup_free_ char *k = NULL, *l = NULL;
58 sysfs = udev_list_entry_get_name(*item);
59 if (!path_startswith(sysfs, sub))
62 d = udev_device_new_from_syspath(udev, sysfs);
64 *item = udev_list_entry_get_next(*item);
68 sn = udev_device_get_property_value(d, "ID_SEAT");
72 /* Explicitly also check for tag 'seat' here */
73 if (!streq(seat, sn) || !udev_device_has_tag(d, "seat")) {
74 *item = udev_list_entry_get_next(*item);
78 is_master = udev_device_has_tag(d, "master-of-seat");
80 name = udev_device_get_sysattr_value(d, "name");
82 name = udev_device_get_sysattr_value(d, "id");
83 subsystem = udev_device_get_subsystem(d);
84 sysname = udev_device_get_sysname(d);
86 /* Look if there's more coming after this */
87 lookahead = next = udev_list_entry_get_next(*item);
89 const char *lookahead_sysfs;
91 lookahead_sysfs = udev_list_entry_get_name(lookahead);
93 if (path_startswith(lookahead_sysfs, sub) &&
94 !path_startswith(lookahead_sysfs, sysfs)) {
95 _cleanup_udev_device_unref_ struct udev_device *lookahead_d = NULL;
97 lookahead_d = udev_device_new_from_syspath(udev, lookahead_sysfs);
99 const char *lookahead_sn;
101 lookahead_sn = udev_device_get_property_value(d, "ID_SEAT");
102 if (isempty(lookahead_sn))
103 lookahead_sn = "seat0";
105 if (streq(seat, lookahead_sn) && udev_device_has_tag(lookahead_d, "seat"))
110 lookahead = udev_list_entry_get_next(lookahead);
113 k = ellipsize(sysfs, n_columns, 20);
117 printf("%s%s%s\n", prefix, special_glyph(lookahead ? TREE_BRANCH : TREE_RIGHT), k);
121 is_master ? "[MASTER] " : "",
123 name ? " \"" : "", strempty(name), name ? "\"" : "") < 0)
127 k = ellipsize(l, n_columns, 70);
131 printf("%s%s%s\n", prefix, lookahead ? special_glyph(TREE_VERTICAL) : " ", k);
135 _cleanup_free_ char *p = NULL;
137 p = strappend(prefix, lookahead ? special_glyph(TREE_VERTICAL) : " ");
141 show_sysfs_one(udev, seat, item, sysfs, p, n_columns - 2);
148 int show_sysfs(const char *seat, const char *prefix, unsigned n_columns) {
149 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
150 _cleanup_udev_unref_ struct udev *udev = NULL;
151 struct udev_list_entry *first = NULL;
155 n_columns = columns();
167 e = udev_enumerate_new(udev);
171 if (!streq(seat, "seat0"))
172 r = udev_enumerate_add_match_tag(e, seat);
174 r = udev_enumerate_add_match_tag(e, "seat");
178 r = udev_enumerate_add_match_is_initialized(e);
182 r = udev_enumerate_scan_devices(e);
186 first = udev_enumerate_get_list_entry(e);
188 show_sysfs_one(udev, seat, &first, "/", prefix, n_columns);
190 printf("%s%s%s\n", prefix, special_glyph(TREE_RIGHT), "(none)");