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fc12f35ab1
* m4/fcntl.m4 (gl_FUNC_FCNTL): Also catch Haiku errno bug. * lib/fcntl.c (rpl_fcntl) [F_DUPFD]: Work around Haiku losing cloexec bit on duplication. * doc/posix-functions/fcntl.texi (fcntl): Document the bug. Signed-off-by: Eric Blake <eblake@redhat.com>
42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
@node fcntl
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@section @code{fcntl}
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@findex fcntl
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fcntl.html}
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Gnulib module: fcntl
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Portability problems fixed by Gnulib:
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@itemize
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@item
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This function does not support @code{F_DUPFD_CLOEXEC} on some
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platforms:
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MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, AIX 5.1, HP-UX 11,
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IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.7.1, mingw, Interix 3.5,
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BeOS.
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Note that the gnulib replacement code is functional but not atomic.
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@item
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The @code{F_DUPFD} action of this function does not reject
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out-of-range targets properly on some platforms:
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Cygwin 1.5.x, Haiku.
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@item
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The @code{F_DUPFD} action of this function mistakenly clears
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FD_CLOEXEC on the source descriptor on some platforms:
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Haiku.
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@item
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This function is missing on some platforms:
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mingw.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@item
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The replacement function does not support @code{F_SETFD},
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@code{F_GETFL}, @code{F_SETFL}, @code{F_GETOWN}, @code{F_SETOWN},
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@code{F_GETLK}, @code{F_SETLK}, and @code{F_SETLKW} on some platforms:
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mingw
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@end itemize
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