9e30c5c2b1
Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
55 lines
1.6 KiB
Diff
55 lines
1.6 KiB
Diff
From 518bc50ae42540574bba360225c8a65b56b79148 Mon Sep 17 00:00:00 2001
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From: Jonas Bonn <jonas@southpole.se>
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Date: Tue, 6 Sep 2011 10:30:40 +0200
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Subject: [PATCH 3/8] Add dup3 syscall
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Signed-off-by: Jonas Bonn <jonas@southpole.se>
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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include/unistd.h | 4 ++++
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libc/sysdeps/linux/common/dup3.c | 17 +++++++++++++++++
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2 files changed, 21 insertions(+)
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create mode 100644 libc/sysdeps/linux/common/dup3.c
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diff --git a/include/unistd.h b/include/unistd.h
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index 1b2fd4d..f7d070b 100644
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--- a/include/unistd.h
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+++ b/include/unistd.h
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@@ -513,6 +513,10 @@ extern int dup (int __fd) __THROW __wur;
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extern int dup2 (int __fd, int __fd2) __THROW;
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libc_hidden_proto(dup2)
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+/* Duplicate FD to FD2, closing FD2 and making it open on the same file. */
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+extern int dup3 (int __fd, int __fd2, int __flags) __THROW;
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+libc_hidden_proto(dup3)
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+
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/* NULL-terminated array of "NAME=VALUE" environment variables. */
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extern char **__environ;
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#ifdef __USE_GNU
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diff --git a/libc/sysdeps/linux/common/dup3.c b/libc/sysdeps/linux/common/dup3.c
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new file mode 100644
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index 0000000..7b57438
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--- /dev/null
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+++ b/libc/sysdeps/linux/common/dup3.c
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@@ -0,0 +1,17 @@
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+/* vi: set sw=4 ts=4: */
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+/*
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+ * dup3() for uClibc
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+ *
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+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
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+ *
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+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
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+ */
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+
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+#include <sys/syscall.h>
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+#include <unistd.h>
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+
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+
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+#ifdef __NR_dup3
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+_syscall3(int, dup3, int, oldfd, int, newfd, int, flags)
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+libc_hidden_def(dup3)
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+#endif
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--
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1.8.1.2
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