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dup2
POSIX specification:
http://www.opengroup.org/onlinepubs/9699919799/functions/dup2.html
Gnulib module: dup2 or dup2-obsolete
Portability problems fixed by either Gnulib module dup2
or dup2-obsolete
:
EINVAL
when duplicating an fd to itself:
Android.
FD_CLOEXEC
flag when duplicating an fd
to itself on some platforms:
Haiku.
dup2 (1, 1)
on some platforms:
Cygwin 1.5.x.
-EBADF
instead of -1
on some platforms:
Linux releases between July 2008 and May 2009 (versions 2.6.27 to 2.6.29).
EMFILE
instead of EBADF
for
large targets, which interferes with using
dup2(fd,fd)==fd)
as the minimal EBADF
filter:
AIX 7.1, FreeBSD 6.1, Cygwin 1.5.
Portability problems fixed by Gnulib module dup2-obsolete
:
Portability problems not fixed by Gnulib: