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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.
33 #include "udev_version.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
))
57 if (errno
== ENOTEMPTY
)
59 dbg("rmdir(%s) failed with error '%s'",
60 path
, strerror(errno
));
63 dbg("removed '%s'", path
);
68 static int delete_node(struct udevice
*dev
)
70 char filename
[NAME_SIZE
];
71 char linkname
[NAME_SIZE
];
72 char partitionname
[NAME_SIZE
];
78 strfieldcpy(filename
, udev_root
);
79 strfieldcat(filename
, dev
->name
);
81 info("removing device node '%s'", filename
);
82 retval
= unlink(filename
);
86 dbg("unlink(%s) failed with error '%s'",
87 filename
, strerror(errno
));
91 /* remove partition nodes */
92 if (dev
->partitions
> 0) {
93 info("removing partitions '%s[1-%i]'", filename
, dev
->partitions
);
94 for (i
= 1; i
<= dev
->partitions
; i
++) {
95 strfieldcpy(partitionname
, filename
);
96 strintcat(partitionname
, i
);
97 unlink(partitionname
);
101 /* remove subdirectories */
102 if (strchr(dev
->name
, '/'))
103 delete_path(filename
);
105 foreach_strpart(dev
->symlink
, " ", pos
, len
) {
106 strfieldcpymax(linkname
, pos
, len
+1);
107 strfieldcpy(filename
, udev_root
);
108 strfieldcat(filename
, linkname
);
110 dbg("unlinking symlink '%s'", filename
);
111 retval
= unlink(filename
);
115 dbg("unlink(%s) failed with error '%s'",
116 filename
, strerror(errno
));
119 if (strchr(dev
->symlink
, '/')) {
120 delete_path(filename
);
128 * Look up the sysfs path in the database to see if we have named this device
129 * something different from the kernel name. If we have, us it. If not, use
130 * the default kernel name for lack of anything else to know to do.
132 int udev_remove_device(char *path
, char *subsystem
)
138 memset(&dev
, 0x00, sizeof(dev
));
140 retval
= udevdb_get_dev(path
, &dev
);
142 dbg("'%s' not found in database, falling back on default name", path
);
143 temp
= strrchr(path
, '/');
146 strfieldcpy(dev
.name
, &temp
[1]);
148 dbg("name='%s'", dev
.name
);
150 dev
.type
= get_device_type(path
, subsystem
);
151 dev_d_send(&dev
, subsystem
);
152 udevdb_delete_dev(path
);
154 if (dev
.type
== 'b' || dev
.type
== 'c')
155 retval
= delete_node(&dev
);
156 else if (dev
.type
== 'n')