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PR/7814: Matthias Scheler: shell does not fork for builtins in backquotes,

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leading to unexpected behaviour. Disable the no-fork optimization for now.
We need to revisit this and keep enough state around to recover from such
changes.
This commit is contained in:
christos 1999-06-26 16:31:47 +00:00
parent b2c4582d6d
commit 02048e84df
1 changed files with 12 additions and 3 deletions
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15
bin/sh/eval.c
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@ -1,4 +1,4 @@
/* $NetBSD: eval.c,v 1.45 1999/02/04 16:17:39 christos Exp $ */
/* $NetBSD: eval.c,v 1.46 1999/06/26 16:31:47 christos Exp $ */
/*-
* Copyright (c) 1993
@ -41,7 +41,7 @@
#if 0
static char sccsid[] = "@(#)eval.c 8.9 (Berkeley) 6/8/95";
#else
__RCSID("$NetBSD: eval.c,v 1.45 1999/02/04 16:17:39 christos Exp $");
__RCSID("$NetBSD: eval.c,v 1.46 1999/06/26 16:31:47 christos Exp $");
#endif
#endif /* not lint */
@ -546,10 +546,19 @@ evalbackcmd(n, result)
exitstatus = 0;
goto out;
}
#ifdef notyet
/*
* For now we disable executing builtins in the same
* context as the shell, because we are not keeping
* enough state to recover from changes that are
* supposed only to affect subshells. eg. echo "`cd /`"
*/
if (n->type == NCMD) {
exitstatus = oexitstatus;
evalcommand(n, EV_BACKCMD, result);
} else {
} else
#endif
{
exitstatus = 0;
if (pipe(pip) < 0)
error("Pipe call failed");