| From 518bc50ae42540574bba360225c8a65b56b79148 Mon Sep 17 00:00:00 2001 |
| From: Jonas Bonn <jonas@southpole.se> |
| Date: Tue, 6 Sep 2011 10:30:40 +0200 |
| Subject: [PATCH 3/8] Add dup3 syscall |
| |
| Signed-off-by: Jonas Bonn <jonas@southpole.se> |
| Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> |
| --- |
| include/unistd.h | 4 ++++ |
| libc/sysdeps/linux/common/dup3.c | 17 +++++++++++++++++ |
| 2 files changed, 21 insertions(+) |
| create mode 100644 libc/sysdeps/linux/common/dup3.c |
| |
| diff --git a/include/unistd.h b/include/unistd.h |
| index 1b2fd4d..f7d070b 100644 |
| --- a/include/unistd.h |
| +++ b/include/unistd.h |
| @@ -513,6 +513,10 @@ extern int dup (int __fd) __THROW __wur; |
| extern int dup2 (int __fd, int __fd2) __THROW; |
| libc_hidden_proto(dup2) |
| |
| +/* Duplicate FD to FD2, closing FD2 and making it open on the same file. */ |
| +extern int dup3 (int __fd, int __fd2, int __flags) __THROW; |
| +libc_hidden_proto(dup3) |
| + |
| /* NULL-terminated array of "NAME=VALUE" environment variables. */ |
| extern char **__environ; |
| #ifdef __USE_GNU |
| diff --git a/libc/sysdeps/linux/common/dup3.c b/libc/sysdeps/linux/common/dup3.c |
| new file mode 100644 |
| index 0000000..7b57438 |
| --- /dev/null |
| +++ b/libc/sysdeps/linux/common/dup3.c |
| @@ -0,0 +1,17 @@ |
| +/* vi: set sw=4 ts=4: */ |
| +/* |
| + * dup3() for uClibc |
| + * |
| + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| + * |
| + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| + */ |
| + |
| +#include <sys/syscall.h> |
| +#include <unistd.h> |
| + |
| + |
| +#ifdef __NR_dup3 |
| +_syscall3(int, dup3, int, oldfd, int, newfd, int, flags) |
| +libc_hidden_def(dup3) |
| +#endif |
| -- |
| 1.8.1.2 |
| |