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/* $OpenBSD: ecoff_hide.c,v 1.1 2008/08/22 15:18:55 deraadt Exp $ */
/*-
* Copyright (c) 1997 Niklas Hallqvist. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/exec.h>
#ifdef _NLIST_DO_ECOFF
#include <sys/exec_ecoff.h>
#include <string.h>
/* Do we have these symbols in any include file? */
#define scText 1
#define scData 2
#define scBss 3
#define scSData 13
#define scSBss 14
#define scRData 15
#define stNil 0
extern int in_keep_list(char *);
void
ecoff_hide(int fd, char *p)
{
struct ecoff_exechdr *ehdr = (struct ecoff_exechdr *) p;
struct ecoff_symhdr *shdr = (struct ecoff_symhdr *) (p + ehdr->f.f_symptr);
u_int ecnt = shdr->esymMax;
struct ecoff_extsym *esym = (struct ecoff_extsym *) (p + shdr->cbExtOffset);
char *estr = p + shdr->cbSsExtOffset;
int i;
for (i = 0; i < ecnt; i++, esym++)
if ((esym->es_class == scText || esym->es_class == scData ||
esym->es_class == scBss || esym->es_class == scSData ||
esym->es_class == scSBss || esym->es_class == scRData) &&
!in_keep_list(estr + esym->es_strindex))
esym->es_type = stNil;
}
#endif /* _NLIST_DO_ECOFF */
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