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Index: stable/11/lib/libc/sys/sendfile.2
===================================================================
--- stable/11/lib/libc/sys/sendfile.2
+++ stable/11/lib/libc/sys/sendfile.2
@@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd January 7, 2016
+.Dd January 25, 2019
.Dt SENDFILE 2
.Os
.Sh NAME
@@ -104,7 +104,7 @@
The least significant 16 bits of
.Fa flags
argument is a bitmap of these values:
-.Bl -tag -offset indent
+.Bl -tag -offset indent -width "SF_USER_READAHEAD"
.It Dv SF_NODISKIO
This flag causes
.Nm
@@ -314,6 +314,12 @@
.It Bq Er EIO
An error occurred while reading from
.Fa fd .
+.It Bq Er ENOTCAPABLE
+The
+.Fa fd
+or the
+.Fa s
+argument has insufficient rights.
.It Bq Er ENOBUFS
The system was unable to allocate an internal buffer.
.It Bq Er ENOTCONN
@@ -375,3 +381,14 @@
.Fx 11
implementation was written by
.An Gleb Smirnoff Aq Mt glebius@FreeBSD.org .
+.Sh BUGS
+The
+.Fn sendfile
+system call will not fail, i.e., return
+.Dv -1
+and set
+.Va errno
+to
+.Er EFAULT ,
+if provided an invalid address for
+.Fa sbytes .

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