diff options
Diffstat (limited to 'src/login/sysfs-show.c')
| -rw-r--r-- | src/login/sysfs-show.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/src/login/sysfs-show.c b/src/login/sysfs-show.c deleted file mode 100644 index 29785e2f11..0000000000 --- a/src/login/sysfs-show.c +++ /dev/null @@ -1,189 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 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 <errno.h> -#include <string.h> - -#include "libudev.h" - -#include "alloc-util.h" -#include "locale-util.h" -#include "path-util.h" -#include "string-util.h" -#include "sysfs-show.h" -#include "terminal-util.h" -#include "udev-util.h" -#include "util.h" - -static int show_sysfs_one( - struct udev *udev, - const char *seat, - struct udev_list_entry **item, - const char *sub, - const char *prefix, - unsigned n_columns) { - - assert(udev); - assert(seat); - assert(item); - assert(prefix); - - while (*item) { - _cleanup_udev_device_unref_ struct udev_device *d = NULL; - struct udev_list_entry *next, *lookahead; - const char *sn, *name, *sysfs, *subsystem, *sysname; - _cleanup_free_ char *k = NULL, *l = NULL; - bool is_master; - - sysfs = udev_list_entry_get_name(*item); - if (!path_startswith(sysfs, sub)) - return 0; - - d = udev_device_new_from_syspath(udev, sysfs); - if (!d) { - *item = udev_list_entry_get_next(*item); - continue; - } - - sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(sn)) - sn = "seat0"; - - /* Explicitly also check for tag 'seat' here */ - if (!streq(seat, sn) || !udev_device_has_tag(d, "seat")) { - *item = udev_list_entry_get_next(*item); - continue; - } - - is_master = udev_device_has_tag(d, "master-of-seat"); - - name = udev_device_get_sysattr_value(d, "name"); - if (!name) - name = udev_device_get_sysattr_value(d, "id"); - subsystem = udev_device_get_subsystem(d); - sysname = udev_device_get_sysname(d); - - /* Look if there's more coming after this */ - lookahead = next = udev_list_entry_get_next(*item); - while (lookahead) { - const char *lookahead_sysfs; - - lookahead_sysfs = udev_list_entry_get_name(lookahead); - - if (path_startswith(lookahead_sysfs, sub) && - !path_startswith(lookahead_sysfs, sysfs)) { - _cleanup_udev_device_unref_ struct udev_device *lookahead_d = NULL; - - lookahead_d = udev_device_new_from_syspath(udev, lookahead_sysfs); - if (lookahead_d) { - const char *lookahead_sn; - - lookahead_sn = udev_device_get_property_value(d, "ID_SEAT"); - if (isempty(lookahead_sn)) - lookahead_sn = "seat0"; - - if (streq(seat, lookahead_sn) && udev_device_has_tag(lookahead_d, "seat")) - break; - } - } - - lookahead = udev_list_entry_get_next(lookahead); - } - - k = ellipsize(sysfs, n_columns, 20); - if (!k) - return -ENOMEM; - - printf("%s%s%s\n", prefix, special_glyph(lookahead ? TREE_BRANCH : TREE_RIGHT), k); - - if (asprintf(&l, - "%s%s:%s%s%s%s", - is_master ? "[MASTER] " : "", - subsystem, sysname, - name ? " \"" : "", strempty(name), name ? "\"" : "") < 0) - return -ENOMEM; - - free(k); - k = ellipsize(l, n_columns, 70); - if (!k) - return -ENOMEM; - - printf("%s%s%s\n", prefix, lookahead ? special_glyph(TREE_VERTICAL) : " ", k); - - *item = next; - if (*item) { - _cleanup_free_ char *p = NULL; - - p = strappend(prefix, lookahead ? special_glyph(TREE_VERTICAL) : " "); - if (!p) - return -ENOMEM; - - show_sysfs_one(udev, seat, item, sysfs, p, n_columns - 2); - } - } - - return 0; -} - -int show_sysfs(const char *seat, const char *prefix, unsigned n_columns) { - _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL; - _cleanup_udev_unref_ struct udev *udev = NULL; - struct udev_list_entry *first = NULL; - int r; - - if (n_columns <= 0) - n_columns = columns(); - - if (!prefix) - prefix = ""; - - if (isempty(seat)) - seat = "seat0"; - - udev = udev_new(); - if (!udev) - return -ENOMEM; - - e = udev_enumerate_new(udev); - if (!e) - return -ENOMEM; - - if (!streq(seat, "seat0")) - r = udev_enumerate_add_match_tag(e, seat); - else - r = udev_enumerate_add_match_tag(e, "seat"); - if (r < 0) - return r; - - r = udev_enumerate_add_match_is_initialized(e); - if (r < 0) - return r; - - r = udev_enumerate_scan_devices(e); - if (r < 0) - return r; - - first = udev_enumerate_get_list_entry(e); - if (first) - show_sysfs_one(udev, seat, &first, "/", prefix, n_columns); - else - printf("%s%s%s\n", prefix, special_glyph(TREE_RIGHT), "(none)"); - - return r; -} |