From c3c05dd884fe74bfdc1537afc8c85aca02ed7ffc Mon Sep 17 00:00:00 2001
From: leitner <leitner>
Date: Thu, 14 Jul 2016 16:47:05 +0000
Subject: [PATCH] use AT_FDCWD instead of -1

---
 mmap/mmap_readat.3 | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mmap/mmap_readat.3 b/mmap/mmap_readat.3
index de48a9f..353f550 100644
--- a/mmap/mmap_readat.3
+++ b/mmap/mmap_readat.3
@@ -10,7 +10,8 @@ mmap_readat opens \fIfilename\fR for reading, maps the whole file into
 memory, closes the file, writes the length of the file to \fIfilesize\fR
 and returns a pointer to the mapped file.
 
-If \fIfilename\fR is a relative path and \fIdirfd\fR is not -1,
+If \fIfilename\fR is a relative path and \fIdirfd\fR is not AT_FDCWD
+(defined in fcntl.h),
 \fIfilename\fR is interpreted relative to \fIdirfd\fR, which must be an
 open directory.