mirror of
https://github.com/kdave/btrfs-progs
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502e2a3510
Currently, users wishing to manage Btrfs filesystems programatically have to shell out to btrfs-progs and parse the output. This isn't ideal. The goal of libbtrfsutil is to provide a library version of as many of the operations of btrfs-progs as possible and to migrate btrfs-progs to use it. Rather than simply refactoring the existing btrfs-progs code, the code has to be written from scratch for a couple of reasons: * A lot of the btrfs-progs code was not designed with a nice library API in mind in terms of reusability, naming, and error reporting. * libbtrfsutil is licensed under the LGPL, whereas btrfs-progs is under the GPL, which makes it dubious to directly copy or move the code. Eventually, most of the low-level btrfs-progs code should either live in libbtrfsutil or the shared kernel/userspace filesystem code, and btrfs-progs will just be the CLI wrapper. This first commit just includes the build system changes, license, README, and error reporting helper. Signed-off-by: Omar Sandoval <osandov@fb.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
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* Copyright (C) 2018 Facebook
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*
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* This file is part of libbtrfsutil.
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*
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* libbtrfsutil is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libbtrfsutil 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
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef BTRFS_UTIL_INTERNAL_H
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#define BTRFS_UTIL_INTERNAL_H
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#include <asm/byteorder.h>
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#include "btrfsutil.h"
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#define PUBLIC __attribute__((visibility("default")))
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#define le16_to_cpu __le16_to_cpu
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#define le32_to_cpu __le32_to_cpu
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#define le64_to_cpu __le64_to_cpu
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#define SAVE_ERRNO_AND_CLOSE(fd) do { \
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int saved_errno = errno; \
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\
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close(fd); \
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errno = saved_errno; \
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} while (0)
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#endif /* BTRFS_UTIL_INTERNAL_H */
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