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Coverity CID 1228: protect against calling close with negative value.

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This commit is contained in:
christos 2006-03-18 06:29:21 +00:00
parent dcfc467f4d
commit 4d7c6251da
1 changed files with 8 additions and 5 deletions
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13
bin/csh/func.c
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@ -1,4 +1,4 @@
/* $NetBSD: func.c,v 1.30 2005/06/26 19:10:48 christos Exp $ */
/* $NetBSD: func.c,v 1.31 2006/03/18 06:29:21 christos Exp $ */
/*-
* Copyright (c) 1980, 1991, 1993
@ -34,7 +34,7 @@
#if 0
static char sccsid[] = "@(#)func.c 8.1 (Berkeley) 5/31/93";
#else
__RCSID("$NetBSD: func.c,v 1.30 2005/06/26 19:10:48 christos Exp $");
__RCSID("$NetBSD: func.c,v 1.31 2006/03/18 06:29:21 christos Exp $");
#endif
#endif /* not lint */
@ -1418,9 +1418,12 @@ doeval(Char **v, struct command *t)
evalp = oevalp;
doneinp = 0;
didfds = odidfds;
(void)close(SHIN);
(void)close(SHOUT);
(void)close(SHERR);
if (SHIN != -1)
(void)close(SHIN);
if (SHOUT != -1)
(void)close(SHOUT);
if (SHERR != -1)
(void)close(SHERR);
SHIN = dmove(saveIN, oSHIN);
SHOUT = dmove(saveOUT, oSHOUT);
SHERR = dmove(saveERR, oSHERR);