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When iterating the host list, do not access memory that has just been

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free()'d.  From Matt Beal <beal@umiacs.umd.edu>, PR #2747.
This commit is contained in:
thorpej 1996-09-10 18:48:57 +00:00
parent 2b5e1cd158
commit 65f3b15dc2
1 changed files with 4 additions and 4 deletions
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8
usr.bin/rdist/gram.y
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@ -1,5 +1,5 @@
%{ %{
/* $NetBSD: gram.y,v 1.5 1996/07/12 00:46:24 thorpej Exp $ */ /* $NetBSD: gram.y,v 1.6 1996/09/10 18:48:57 thorpej Exp $ */
/* /*
* Copyright (c) 1983, 1993 * Copyright (c) 1983, 1993
@ -38,7 +38,7 @@
#if 0 #if 0
static char sccsid[] = "@(#)gram.y 8.1 (Berkeley) 6/9/93"; static char sccsid[] = "@(#)gram.y 8.1 (Berkeley) 6/9/93";
#else #else
static char *rcsid = "$NetBSD: gram.y,v 1.5 1996/07/12 00:46:24 thorpej Exp $"; static char *rcsid = "$NetBSD: gram.y,v 1.6 1996/09/10 18:48:57 thorpej Exp $";
#endif #endif
#endif /* not lint */ #endif /* not lint */
@ -373,11 +373,11 @@ insert(label, files, hosts, subcmds)
struct subcmd *subcmds; struct subcmd *subcmds;
{ {
register struct cmd *c, *prev, *nc; register struct cmd *c, *prev, *nc;
register struct namelist *h; register struct namelist *h, *nexth;
files = expand(files, E_VARS|E_SHELL); files = expand(files, E_VARS|E_SHELL);
hosts = expand(hosts, E_ALL); hosts = expand(hosts, E_ALL);
for (h = hosts; h != NULL; free(h), h = h->n_next) { for (h = hosts; h != NULL; nexth = h->n_next, free(h), h = nexth) {
/* /*
* Search command list for an update to the same host. * Search command list for an update to the same host.
*/ */