From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 src/linux/preadv2.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/linux/preadv2.c

(limited to 'src/linux/preadv2.c')

diff --git a/src/linux/preadv2.c b/src/linux/preadv2.c
new file mode 100644
index 0000000..5e7ab70
--- /dev/null
+++ b/src/linux/preadv2.c
@@ -0,0 +1,17 @@
+#define _GNU_SOURCE
+#include <sys/uio.h>
+#include <unistd.h>
+#include "syscall.h"
+
+ssize_t preadv2(int fd, const struct iovec *iov, int count, off_t ofs, int flags)
+{
+#ifdef SYS_preadv
+	if (!flags) {
+		if (ofs==-1) return readv(fd, iov, count);
+		return syscall_cp(SYS_preadv, fd, iov, count,
+			(long)(ofs), (long)(ofs>>32));
+	}
+#endif
+	return syscall_cp(SYS_preadv2, fd, iov, count,
+		(long)(ofs), (long)(ofs>>32), flags);
+}
-- 
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