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gnulib/doc/posix-functions/openat.texi
Eric Blake 4c45e93c58 openat: fix openat bugs on Solaris 9
openat(fd,"file/",O_RDONLY) mistakenly succeeded.

* lib/openat.c (rpl_openat): Work around Solaris 9 bug.
* m4/openat.m4 (gl_FUNC_OPENAT): Also replace openat on Solaris.
* modules/openat (Depends-on): Add open.
* m4/fcntl_h.m4 (gl_FCNTL_H_DEFAULTS): Provide new default.
* modules/fcntl-h (Makefile.am): Substitute it.
* lib/fcntl.in.h (openat): Declare replacement.
* doc/posix-functions/openat.texi (openat): Document this.

Signed-off-by: Eric Blake <ebb9@byu.net>
2009-09-19 13:53:27 -06:00

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@node openat
@section @code{openat}
@findex openat
POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/openat.html}
Gnulib module: openat
Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
glibc 2.3.6, MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, OpenBSD 3.8, AIX
5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Cygwin 1.5.x, mingw, Interix 3.5, BeOS.
But the replacement function is not safe to be used in libraries and is not multithread-safe.
@item
This function does not fail when the file name argument ends in a slash
and (without the slash) names a nonexistent file or a file that is not a
directory, on some platforms:
Solaris 9.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@end itemize