Import sendfile.h from musl

Copied as is from the official musl git mirror
git://git.musl-libc.org/musl, commit 06d4075a.

Signed-off-by: Mihai Pogonaru <pogonarumihai@gmail.com>
Reviewed-by: Costin Lupu <costin.lupu@cs.pub.ro>

diff --git a/musl-imported/include/sys/sendfile.h b/musl-imported/include/sys/sendfile.h
new file mode 100644 (file)
index 0000000..e7570d8
--- /dev/null
+++ b/musl-imported/include/sys/sendfile.h
@@ -0,0 +1,22 @@
+#ifndef _SYS_SENDFILE_H
+#define _SYS_SENDFILE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <features.h>
+#include <unistd.h>
+
+ssize_t sendfile(int, int, off_t *, size_t);
+
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
+#define sendfile64 sendfile
+#define off64_t off_t
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif