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31 lines
1.2 KiB
Go
31 lines
1.2 KiB
Go
package fuse
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// There is very little commonality in extended attribute errors
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// across platforms.
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//
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// getxattr return value for "extended attribute does not exist" is
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// ENODATA on Linux and apparently at least NetBSD. There may be a
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// #define ENOATTR on Linux too, but the value is ENODATA in the
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// actual syscalls. FreeBSD and OpenBSD have no ENODATA, only ENOATTR.
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// ENOATTR is not in any of the standards, ENODATA exists but is only
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// used for STREAMs.
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//
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// Each platform will define it a errNoXattr constant, and this file
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// will enforce that it implements the right interfaces and hide the
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// implementation.
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//
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// http://mail-index.netbsd.org/tech-kern/2012/04/30/msg013090.html
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// http://mail-index.netbsd.org/tech-kern/2012/04/30/msg013097.html
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// http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
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// http://www.freebsd.org/cgi/man.cgi?query=extattr_get_file&sektion=2
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// http://nixdoc.net/man-pages/openbsd/man2/extattr_get_file.2.html
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// ErrNoXattr is a platform-independent error value meaning the
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// extended attribute was not found. It can be used to respond to
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// GetxattrRequest and such.
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const ErrNoXattr = errNoXattr
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var _ error = ErrNoXattr
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var _ Errno = ErrNoXattr
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var _ ErrorNumber = ErrNoXattr
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