diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/dup2.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/dup2.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/dup2.c b/REORG.TODO/sysdeps/mach/hurd/dup2.c new file mode 100644 index 0000000000..fb8498876d --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/dup2.c @@ -0,0 +1,35 @@ +/* Copyright (C) 1991-2017 Free Software Foundation, Inc. + + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <unistd.h> + +/* Duplicate FD to FD2, closing the old FD2 and making FD2 be + open on the same file as FD is. Return FD2 or -1. */ +int +__dup2 (int fd, int fd2) +{ + int flags = 0; + + if (fd2 == fd) + /* See the comment in dup3. */ + flags = -1; + + return __dup3 (fd, fd2, flags); +} +libc_hidden_def (__dup2) +weak_alias (__dup2, dup2) |