1994-05-27 05:00:24 +00:00
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.\" Copyright (c) 1980, 1991, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" @(#)nlist.3 8.3 (Berkeley) 4/19/94
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1999-08-28 00:22:10 +00:00
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.\" $FreeBSD$
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1994-05-27 05:00:24 +00:00
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.\"
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.Dd April 19, 1994
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.Dt NLIST 3
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.Os BSD 4
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.Sh NAME
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.Nm nlist
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.Nd retrieve symbol table name list from an executable file
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2000-04-21 09:42:15 +00:00
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.Sh LIBRARY
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.Lb libc
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1994-05-27 05:00:24 +00:00
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.Sh SYNOPSIS
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.Fd #include <nlist.h>
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.Ft int
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.Fn nlist "const char *filename" "struct nlist *nl"
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.Sh DESCRIPTION
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The
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.Fn nlist
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function
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retrieves name list entries from the symbol table of an
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1996-04-08 04:18:31 +00:00
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executable file (see
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.Xr a.out 5 ) .
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1994-05-27 05:00:24 +00:00
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The argument
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.Fa \&nl
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is set to reference the
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beginning of the list.
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The list is preened of binary and invalid data;
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if an entry in the
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name list is valid, the
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.Fa n_type
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and
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.Fa n_value
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for the entry are copied into the list
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referenced by
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.Fa \&nl .
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No other data is copied.
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The last entry in the list is always
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.Dv NULL .
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.Sh RETURN VALUES
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The number of invalid entries is returned if successful; otherwise,
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if the file
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.Fa filename
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does not exist or is not executable, the returned value is \-1.
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.Sh SEE ALSO
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.Xr a.out 5
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.Sh HISTORY
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A
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.Fn nlist
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function appeared in
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.At v6 .
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