mirror of
https://github.com/kdave/btrfs-progs
synced 2025-01-18 03:30:45 +00:00
feb8f56ba2
The current mount detection code in btrfs receive is not quite perfect. For example, suppose /tmp is mounted as a tmpfs. In that case, btrfs receive /tmp2 will find /tmp as the longest mount that matches a prefix of /tmp2 and blow up because it is not a btrfs filesystem, even if /tmp2 is just a directory in / mounted as btrfs. Fix this by replacing the substring check with a dirname recursion to only check the directories in the path of the dir, rather than every substring. Add a new test for this case. Signed-off-by: Boris Burkov <boris@bur.io> Signed-off-by: David Sterba <dsterba@suse.com>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#ifndef __BTRFS_PATH_UTILS_H__
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#define __BTRFS_PATH_UTILS_H__
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#include <sys/types.h>
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char *path_canonicalize_dm_name(const char *ptname);
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char *path_canonicalize(const char *path);
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int arg_copy_path(char *dest, const char *src, int destlen);
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int path_cat_out(char *out, const char *p1, const char *p2);
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int path_cat3_out(char *out, const char *p1, const char *p2, const char *p3);
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char *__strncpy_null(char *dest, const char *src, size_t n);
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/* Helper to always get proper size of the destination string */
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#define strncpy_null(dest, src) __strncpy_null(dest, src, sizeof(dest))
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int path_is_block_device(const char *file);
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int path_is_mount_point(const char *file);
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int path_exists(const char *file);
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int path_is_reg_file(const char *path);
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int path_is_dir(const char *path);
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int is_same_loop_file(const char *a, const char *b);
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int path_is_reg_or_block_device(const char *filename);
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int path_is_in_dir(const char *parent, const char *path);
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int test_issubvolname(const char *name);
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#endif
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