1.\" $NetBSD: fetch.9,v 1.2 1996/01/09 21:59:24 perry Exp $
2.\"
3.\" Copyright (c) 1996 Jason R. Thorpe.
4.\" All rights reserved.
5.\"
6.\" This code is derived from software contributed by Kenneth Stailey.
7.\"
8.\" Redistribution and use in source and binary forms, with or without
9.\" modification, are permitted provided that the following conditions
10.\" are met:
11.\" 1. Redistributions of source code must retain the above copyright
12.\" notice, this list of conditions and the following disclaimer.
13.\" 2. Redistributions in binary form must reproduce the above copyright
14.\" notice, this list of conditions and the following disclaimer in the
15.\" documentation and/or other materials provided with the distribution.
16.\" 3. All advertising materials mentioning features or use of this software
17.\" must display the following acknowledgement:
18.\" This product includes software developed for the NetBSD Project
19.\" by Jason R. Thorpe.
20.\" 4. The name of the author may not be used to endorse or promote products
21.\" derived from this software without specific prior written permission.
22.\"
23.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
30.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33.\" SUCH DAMAGE.
34.\"
| 1.\" $NetBSD: fetch.9,v 1.2 1996/01/09 21:59:24 perry Exp $
2.\"
3.\" Copyright (c) 1996 Jason R. Thorpe.
4.\" All rights reserved.
5.\"
6.\" This code is derived from software contributed by Kenneth Stailey.
7.\"
8.\" Redistribution and use in source and binary forms, with or without
9.\" modification, are permitted provided that the following conditions
10.\" are met:
11.\" 1. Redistributions of source code must retain the above copyright
12.\" notice, this list of conditions and the following disclaimer.
13.\" 2. Redistributions in binary form must reproduce the above copyright
14.\" notice, this list of conditions and the following disclaimer in the
15.\" documentation and/or other materials provided with the distribution.
16.\" 3. All advertising materials mentioning features or use of this software
17.\" must display the following acknowledgement:
18.\" This product includes software developed for the NetBSD Project
19.\" by Jason R. Thorpe.
20.\" 4. The name of the author may not be used to endorse or promote products
21.\" derived from this software without specific prior written permission.
22.\"
23.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
28.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
29.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
30.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33.\" SUCH DAMAGE.
34.\"
|
35.Dd Jan 7, 1996
36.Dt FETCH 9
37.Os FreeBSD
38.Sh NAME
39.Nm fetch ,
40.Nm fubyte ,
41.Nm fusword ,
42.Nm fuswintr ,
43.Nm fuword
44.Nd fetch data from user-space
45.Sh SYNOPSIS
46.Fd #include <sys/types.h>
47.Fd #include <sys/time.h>
48.Fd #include <sys/systm.h>
49.Fd #include <sys/resourcevar.h>
50.Ft int
51.Fn fubyte "const void *base"
52.Ft int
53.Fn fusword "void *base"
54.Ft int
55.Fn fuswintr "void *base"
56.Ft long
57.Fn fuword "const void *base"
58.Sh DESCRIPTION
59The
60.Nm
61functions are designed to copy small amounts of data from user-space.
62.Pp
63The
64.Nm
65routines provide the following functionality:
66.Bl -tag -width "fuswintr()"
67.It Fn fubyte
68Fetches a byte of data from the user-space address
69.Pa base .
70.It Fn fusword
71Fetches a short word of data from the user-space address
72.Pa base .
73.It Fn fuswintr
74Fetches a short word of data from the user-space address
75.Pa base .
76This function is safe to call during an interrupt context.
77.It Fn fuword
78Fetches a word of data from the user-space address
79.Pa base .
80.El
81.Sh RETURN VALUES
82The
83.Nm
84functions return the data fetched or -1 on failure.
85.Sh SEE ALSO
86.Xr copy 9 ,
87.Xr store 9 .
| 37.Dd Jan 7, 1996
38.Dt FETCH 9
39.Os FreeBSD
40.Sh NAME
41.Nm fetch ,
42.Nm fubyte ,
43.Nm fusword ,
44.Nm fuswintr ,
45.Nm fuword
46.Nd fetch data from user-space
47.Sh SYNOPSIS
48.Fd #include <sys/types.h>
49.Fd #include <sys/time.h>
50.Fd #include <sys/systm.h>
51.Fd #include <sys/resourcevar.h>
52.Ft int
53.Fn fubyte "const void *base"
54.Ft int
55.Fn fusword "void *base"
56.Ft int
57.Fn fuswintr "void *base"
58.Ft long
59.Fn fuword "const void *base"
60.Sh DESCRIPTION
61The
62.Nm
63functions are designed to copy small amounts of data from user-space.
64.Pp
65The
66.Nm
67routines provide the following functionality:
68.Bl -tag -width "fuswintr()"
69.It Fn fubyte
70Fetches a byte of data from the user-space address
71.Pa base .
72.It Fn fusword
73Fetches a short word of data from the user-space address
74.Pa base .
75.It Fn fuswintr
76Fetches a short word of data from the user-space address
77.Pa base .
78This function is safe to call during an interrupt context.
79.It Fn fuword
80Fetches a word of data from the user-space address
81.Pa base .
82.El
83.Sh RETURN VALUES
84The
85.Nm
86functions return the data fetched or -1 on failure.
87.Sh SEE ALSO
88.Xr copy 9 ,
89.Xr store 9 .
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