Author: eadler
Date: Thu May 3 16:31:21 2012
New Revision: 234966
URL: http://svn.freebsd.org/changeset/base/234966
Log:
MFC r234131:
Return EBADF instead of EMFILE from dup2 when the second argument is
outside the range of valid file descriptors
PR: kern/164970
Approved by: cperciva (implicit)
Modified:
stable/9/lib/libc/sys/dup.2
stable/9/lib/libc/sys/fcntl.2
Directory Properties:
stable/9/lib/libc/ (props changed)
stable/9/lib/libc/sys/ (props changed)
Modified: stable/9/lib/libc/sys/dup.2
==============================================================================
--- stable/9/lib/libc/sys/dup.2 Thu May 3 16:21:26 2012 (r234965)
+++ stable/9/lib/libc/sys/dup.2 Thu May 3 16:31:21 2012 (r234966)
@@ -128,20 +128,27 @@ indicates the cause of the error.
.Sh ERRORS
The
.Fn dup
-and
-.Fn dup2
-system calls fail if:
+system call fails if:
.Bl -tag -width Er
.It Bq Er EBADF
The
.Fa oldd
-or
-.Fa newd
argument
is not a valid active descriptor
.It Bq Er EMFILE
Too many descriptors are active.
.El
+The
+.Fn dup2
+system call fails if:
+.Bl -tag -width Er
+.It Bq Er EBADF
+The
+.Fa oldd
+argument is not a valid active descriptor or the
+.Fa newd
+argument is negative or exceeds the maximum allowable descriptor number
+.El
.Sh SEE ALSO
.Xr accept 2 ,
.Xr cap_new 2 ,
Modified: stable/9/lib/libc/sys/fcntl.2
==============================================================================
--- stable/9/lib/libc/sys/fcntl.2 Thu May 3 16:21:26 2012
(r234965)
+++ stable/9/lib/libc/sys/fcntl.2 Thu May 3 16:31:21 2012
(r234966)
@@ -539,8 +539,6 @@ The argument
.Fa cmd
is
.Dv F_DUPFD
-or
-.Dv F_DUP2FD
and the maximum number of file descriptors permitted for the
process are already in use,
or no file descriptors greater than or equal to
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