diff options
author | greg@kroah.com <greg@kroah.com> | 2004-10-13 21:25:11 -0700 |
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committer | Greg KH <gregkh@suse.de> | 2005-04-26 21:47:44 -0700 |
commit | c850706e84e3a86484ca806f898f3c0672dae4cd (patch) | |
tree | 910d6c0a53b80dcff19f8ba8355f82393c7ae573 /udev-remove.c | |
parent | fa7aa5ecbb4af0c027c250d0ed4e1c16a0b3fd80 (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.c | 190 |
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; -} |