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6ef93da4ca
* m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Don't guess yes on
NetBSD; the test fails on NetBSD 5.0.
* doc/{glibc,posix,pastposix}-{headers,functions}/*.texi: Update info
about NetBSD.
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
@node fstatat
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@section @code{fstatat}
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@findex fstatat
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fstatat.html}
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Gnulib module: openat
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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 is missing on some platforms:
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glibc 2.3.6, MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, OpenBSD 3.8, AIX
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5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin 1.5.x, mingw, Interix 3.5, BeOS.
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But the replacement function is not safe to be used in libraries and is not multithread-safe.
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@item
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On some platforms, @code{fstatat(fd,"file/",buf,flag)} succeeds instead of
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failing with @code{ENOTDIR}.
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Solaris 9.
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@item
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For symlinks, when the argument ends in a slash, some platforms don't
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dereference the argument:
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Solaris 9.
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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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On platforms where @code{off_t} is a 32-bit type, @code{fstatat} may
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not correctly report the size of files or block devices larger than 2
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GB. The fix is to use the @code{AC_SYS_LARGEFILE} macro.
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@item
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On Windows platforms (excluding Cygwin), @code{st_ino} is always 0.
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@item
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On some file systems, @code{st_size} contains bogus information for
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symlinks; use the gnulib module areadlink-with-size for a better way
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to get symlink contents.
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@end itemize
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