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dup.2 (108028) dup.2 (108087)
1.\" Copyright (c) 1980, 1991, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

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25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)dup.2 8.1 (Berkeley) 6/4/93
1.\" Copyright (c) 1980, 1991, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

--- 16 unchanged lines hidden (view full) ---

25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)dup.2 8.1 (Berkeley) 6/4/93
33.\" $FreeBSD: head/lib/libc/sys/dup.2 108028 2002-12-18 09:22:32Z ru $
33.\" $FreeBSD: head/lib/libc/sys/dup.2 108087 2002-12-19 09:40:28Z ru $
34.\"
35.Dd June 4, 1993
36.Dt DUP 2
37.Os
38.Sh NAME
39.Nm dup ,
40.Nm dup2
41.Nd duplicate an existing file descriptor

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125.Sh ERRORS
126The
127.Fn dup
128and
129.Fn dup2
130system calls fail if:
131.Bl -tag -width Er
132.It Bq Er EBADF
34.\"
35.Dd June 4, 1993
36.Dt DUP 2
37.Os
38.Sh NAME
39.Nm dup ,
40.Nm dup2
41.Nd duplicate an existing file descriptor

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125.Sh ERRORS
126The
127.Fn dup
128and
129.Fn dup2
130system calls fail if:
131.Bl -tag -width Er
132.It Bq Er EBADF
133.Fa Oldd
133The
134.Fa oldd
134or
135.Fa newd
135or
136.Fa newd
137argument
136is not a valid active descriptor
137.It Bq Er EMFILE
138Too many descriptors are active.
139.El
140.Sh SEE ALSO
141.Xr accept 2 ,
142.Xr close 2 ,
143.Xr fcntl 2 ,

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138is not a valid active descriptor
139.It Bq Er EMFILE
140Too many descriptors are active.
141.El
142.Sh SEE ALSO
143.Xr accept 2 ,
144.Xr close 2 ,
145.Xr fcntl 2 ,

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