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git.ipfire.org Git - thirdparty/systemd.git/blob - udev-remove.c
6 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation version 2 of the License.
13 * This program 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 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 675 Mass Ave, Cambridge, MA 02139, USA.
32 #include "udev_version.h"
33 #include "udev_dbus.h"
36 #include "libsysfs/libsysfs.h"
38 static int delete_path(char *path
)
43 pos
= strrchr(path
, '/');
46 pos
= strrchr(path
, '/');
48 /* don't remove the last one */
49 if ((pos
== path
) || (pos
== NULL
))
55 if (errno
== ENOTEMPTY
)
57 dbg("rmdir(%s) failed with error '%s'",
58 path
, strerror(errno
));
61 dbg("removed '%s'", path
);
66 static int delete_node(struct udevice
*dev
)
71 strncpy(filename
, udev_root
, sizeof(filename
));
72 strncat(filename
, dev
->name
, sizeof(filename
));
74 dbg("unlinking node '%s'", filename
);
75 retval
= unlink(filename
);
77 dbg("unlink(%s) failed with error '%s'",
78 filename
, strerror(errno
));
82 /* remove subdirectories */
83 if (strchr(dev
->name
, '/'))
84 delete_path(filename
);
87 strncpy(filename
, udev_root
, sizeof(filename
));
88 strncat(filename
, dev
->symlink
, sizeof(filename
));
89 dbg("unlinking symlink '%s'", filename
);
90 retval
= unlink(filename
);
92 dbg("unlink(%s) failed with error '%s'",
93 filename
, strerror(errno
));
96 if (strchr(dev
->symlink
, '/')) {
97 delete_path(filename
);
105 * Look up the sysfs path in the database to see if we have named this device
106 * something different from the kernel name. If we have, us it. If not, use
107 * the default kernel name for lack of anything else to know to do.
109 int udev_remove_device(char *path
, char *subsystem
)
115 dev
= udevdb_get_dev(path
);
117 dbg("'%s' not found in database, falling back on default name", path
);
118 temp
= strrchr(path
, '/');
121 strncpy(name
, &temp
[1], sizeof(name
));
124 dbg("name is '%s'", dev
->name
);
125 udevdb_delete_dev(path
);
127 sysbus_send_remove(name
, path
);
129 return delete_node(dev
);