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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"
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
)
73 strncpy(filename
, udev_root
, sizeof(filename
));
74 strncat(filename
, dev
->name
, sizeof(filename
));
76 info("removing device node '%s'", filename
);
77 retval
= unlink(filename
);
79 dbg("unlink(%s) failed with error '%s'",
80 filename
, strerror(errno
));
84 /* remove subdirectories */
85 if (strchr(dev
->name
, '/'))
86 delete_path(filename
);
89 symlinks
= dev
->symlink
;
91 linkname
= strsep(&symlinks
, " ");
95 strncpy(filename
, udev_root
, sizeof(filename
));
96 strncat(filename
, linkname
, sizeof(filename
));
98 dbg("unlinking symlink '%s'", filename
);
99 retval
= unlink(filename
);
101 dbg("unlink(%s) failed with error '%s'",
102 filename
, strerror(errno
));
105 if (strchr(dev
->symlink
, '/')) {
106 delete_path(filename
);
115 * Look up the sysfs path in the database to see if we have named this device
116 * something different from the kernel name. If we have, us it. If not, use
117 * the default kernel name for lack of anything else to know to do.
119 int udev_remove_device(char *path
, char *subsystem
)
125 memset(&dev
, 0, sizeof(dev
));
127 retval
= udevdb_get_dev(path
, &dev
);
129 dbg("'%s' not found in database, falling back on default name", path
);
130 temp
= strrchr(path
, '/');
133 strncpy(dev
.name
, &temp
[1], sizeof(dev
.name
));
136 dbg("name is '%s'", dev
.name
);
137 udevdb_delete_dev(path
);
139 sysbus_send_remove(dev
.name
, path
);
141 retval
= delete_node(&dev
);