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authorgreg@kroah.com <greg@kroah.com>2004-10-13 21:25:11 -0700
committerGreg KH <gregkh@suse.de>2005-04-26 21:47:44 -0700
commitc850706e84e3a86484ca806f898f3c0672dae4cd (patch)
tree910d6c0a53b80dcff19f8ba8355f82393c7ae573 /udev-remove.c
parentfa7aa5ecbb4af0c027c250d0ed4e1c16a0b3fd80 (diff)
[PATCH] rename files to have '_' instead of '-' in them.
We should be consistent in our madness...
Diffstat (limited to 'udev-remove.c')
-rw-r--r--udev-remove.c190
1 files changed, 0 insertions, 190 deletions
diff --git a/udev-remove.c b/udev-remove.c
deleted file mode 100644
index 7ad7c2402a..0000000000
--- a/udev-remove.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * udev-remove.c
- *
- * Userspace devfs
- *
- * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
- *
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation version 2 of the License.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "udev.h"
-#include "udev_lib.h"
-#include "udev_version.h"
-#include "logging.h"
-#include "namedev.h"
-#include "udevdb.h"
-
-static int delete_path(char *path)
-{
- char *pos;
- int retval;
-
- pos = strrchr(path, '/');
- while (1) {
- *pos = '\0';
- pos = strrchr(path, '/');
-
- /* don't remove the last one */
- if ((pos == path) || (pos == NULL))
- break;
-
- /* remove if empty */
- retval = rmdir(path);
- if (errno == ENOENT)
- retval = 0;
- if (retval) {
- if (errno == ENOTEMPTY)
- return 0;
- dbg("rmdir(%s) failed with error '%s'",
- path, strerror(errno));
- break;
- }
- dbg("removed '%s'", path);
- }
- return 0;
-}
-
-/** Remove all permissions on the device node, before
- * unlinking it. This fixes a security issue.
- * If the user created a hard-link to the device node,
- * he can't use it any longer, because he lost permission
- * to do so.
- */
-static int secure_unlink(const char *filename)
-{
- int retval;
-
- retval = chown(filename, 0, 0);
- if (retval) {
- dbg("chown(%s, 0, 0) failed with error '%s'",
- filename, strerror(errno));
- /* We continue nevertheless.
- * I think it's very unlikely for chown
- * to fail here, if the file exists.
- */
- }
- retval = chmod(filename, 0000);
- if (retval) {
- dbg("chmod(%s, 0000) failed with error '%s'",
- filename, strerror(errno));
- /* We continue nevertheless. */
- }
- retval = unlink(filename);
- if (errno == ENOENT)
- retval = 0;
- if (retval) {
- dbg("unlink(%s) failed with error '%s'",
- filename, strerror(errno));
- }
- return retval;
-}
-
-static int delete_node(struct udevice *dev)
-{
- char filename[NAME_SIZE];
- char linkname[NAME_SIZE];
- char partitionname[NAME_SIZE];
- int retval;
- int i;
- char *pos;
- int len;
-
- strfieldcpy(filename, udev_root);
- strfieldcat(filename, dev->name);
-
- info("removing device node '%s'", filename);
- retval = secure_unlink(filename);
- if (retval)
- return retval;
-
- /* remove partition nodes */
- if (dev->partitions > 0) {
- info("removing partitions '%s[1-%i]'", filename, dev->partitions);
- for (i = 1; i <= dev->partitions; i++) {
- strfieldcpy(partitionname, filename);
- strintcat(partitionname, i);
- secure_unlink(partitionname);
- }
- }
-
- /* remove subdirectories */
- if (strchr(dev->name, '/'))
- delete_path(filename);
-
- foreach_strpart(dev->symlink, " ", pos, len) {
- strfieldcpymax(linkname, pos, len+1);
- strfieldcpy(filename, udev_root);
- strfieldcat(filename, linkname);
-
- dbg("unlinking symlink '%s'", filename);
- retval = unlink(filename);
- if (errno == ENOENT)
- retval = 0;
- if (retval) {
- dbg("unlink(%s) failed with error '%s'",
- filename, strerror(errno));
- return retval;
- }
- if (strchr(dev->symlink, '/')) {
- delete_path(filename);
- }
- }
-
- return retval;
-}
-
-/*
- * Look up the sysfs path in the database to see if we have named this device
- * something different from the kernel name. If we have, us it. If not, use
- * the default kernel name for lack of anything else to know to do.
- */
-int udev_remove_device(const char *path, const char *subsystem)
-{
- struct udevice dev;
- char *temp;
- int retval;
-
- memset(&dev, 0x00, sizeof(dev));
-
- retval = udevdb_get_dev(path, &dev);
- if (retval != 0) {
- dbg("'%s' not found in database, falling back on default name", path);
- temp = strrchr(path, '/');
- if (temp == NULL)
- return -ENODEV;
- strfieldcpy(dev.name, &temp[1]);
- }
- dbg("name='%s'", dev.name);
-
- dev.type = get_device_type(path, subsystem);
- dev_d_send(&dev, subsystem, path);
- udevdb_delete_dev(path);
-
- if (dev.type == 'b' || dev.type == 'c')
- retval = delete_node(&dev);
- else if (dev.type == 'n')
- retval = 0;
-
- return retval;
-}