Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PR/6156: Stefan Grefen: nlist returns bogus value if symbol is multiply 

defined in object
This commit is contained in:
christos 2003-04-20 21:08:11 +00:00
parent 953de79cde
commit e8c0c9df50
1 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
lib/libc/gen/nlist_aout.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: nlist_aout.c,v 1.13 2002/11/11 19:26:49 thorpej Exp $ */
/* $NetBSD: nlist_aout.c,v 1.14 2003/04/20 21:08:11 christos Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
@ -39,7 +39,7 @@
#if 0
static char sccsid[] = "@(#)nlist.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: nlist_aout.c,v 1.13 2002/11/11 19:26:49 thorpej Exp $");
__RCSID("$NetBSD: nlist_aout.c,v 1.14 2003/04/20 21:08:11 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@ -54,6 +54,7 @@ __RCSID("$NetBSD: nlist_aout.c,v 1.13 2002/11/11 19:26:49 thorpej Exp $");
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <a.out.h> /* for 'struct nlist' declaration */
#include "nlist_private.h"
@ -72,6 +73,7 @@ __fdnlist_aout(fd, list)
struct nlist nbuf[1024];
struct exec exec;
struct stat st;
char *scoreboard, *scored;
_DIAGASSERT(fd != -1);
_DIAGASSERT(list != NULL);
@ -120,6 +122,9 @@ __fdnlist_aout(fd, list)
}
if (lseek(fd, symoff, SEEK_SET) == -1)
return (-1);
if ((scoreboard = alloca((size_t)nent)) == NULL)
return (-1);
(void)memset(scoreboard, 0, (size_t)nent);
while (symsize > 0) {
cc = MIN(symsize, sizeof(nbuf));
@ -131,13 +136,16 @@ __fdnlist_aout(fd, list)
if (soff == 0 || (s->n_type & N_STAB) != 0)
continue;
for (p = list; !ISLAST(p); p++)
if (!strcmp(&strtab[(size_t)soff],
for (p = list, scored = scoreboard; !ISLAST(p);
p++, scored++)
if (*scored == 0 &&
!strcmp(&strtab[(size_t)soff],
p->n_un.n_name)) {
p->n_value = s->n_value;
p->n_type = s->n_type;
p->n_desc = s->n_desc;
p->n_other = s->n_other;
*scored = 1;
if (--nent <= 0)
break;
}