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Diffstat (limited to 'gnulib/doc/posix-functions/dup2.texi')
| m--------- | gnulib | 0 | ||||
| -rw-r--r-- | gnulib/doc/posix-functions/dup2.texi | 51 |
2 files changed, 51 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/doc/posix-functions/dup2.texi b/gnulib/doc/posix-functions/dup2.texi new file mode 100644 index 0000000..012bb7f --- /dev/null +++ b/gnulib/doc/posix-functions/dup2.texi @@ -0,0 +1,51 @@ +@node dup2 +@section @code{dup2} +@findex dup2 + +POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/dup2.html} + +Gnulib module: dup2 or dup2-obsolete + +Portability problems fixed by either Gnulib module @code{dup2} or @code{dup2-obsolete}: +@itemize +@item +This function always returns 0 for success on some platforms: +mingw, MSVC 9. + +@item +This function can hang when duplicating an fd to itself on some platforms: +mingw, MSVC 9. + +@item +This function crashes when invoked with invalid arguments on some platforms: +MSVC 9. + +@item +This function resets the @code{FD_CLOEXEC} flag when duplicating an fd +to itself on some platforms: +Haiku. + +@item +This function returns 0 for @code{dup2 (1, 1)} on some platforms: +Cygwin 1.5.x. + +@item +This function may return @code{-EBADF} instead of @code{-1} on some platforms: +Linux releases between July 2008 and May 2009 (versions 2.6.27 to 2.6.29). + +@item +This function returns @code{EMFILE} instead of @code{EBADF} for +extremely large targets, which interferes with using +@code{dup2(fd,fd)==fd)} as the minimal @code{EBADF} filter: +FreeBSD 6.1, Cygwin 1.5. +@end itemize + +Portability problems fixed by Gnulib module @code{dup2-obsolete}: +@itemize +@item +This function is missing on some older platforms. +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@end itemize |