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experimental diff:

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From: Todd C. Miller <Todd.Miller@courtesan.com>
The following ksh diff needs wide testing.  It does the following:
 1) proper error message for bad substitution.
    Before:
        $ echo ${a[@]:foo}
        ksh: : bad substitution
    After:
        $ echo ${a[@]:foo}
        ksh: ${a[@]:foo}: bad substitution
 2) fix a core dump for "echo ${a[@]:?foo}".
 3) fix a use-after-free bug (from otto@)
This commit is contained in:
tg
2004-12-10 22:21:26 +00:00
parent e2c4bce569
commit 8a1afa6087
7 changed files with 42 additions and 40 deletions
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6
lex.c
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@ -1,4 +1,4 @@
/** $MirBSD: lex.c,v 1.7 2004/10/28 11:53:42 tg Exp $ */
/** $MirBSD: lex.c,v 1.8 2004/12/10 22:21:25 tg Exp $ */
/* $OpenBSD: lex.c,v 1.18 2003/08/06 21:08:05 millert Exp $ */
/*
@ -8,7 +8,7 @@
#include "sh.h"
#include <ctype.h>
__RCSID("$MirBSD: lex.c,v 1.7 2004/10/28 11:53:42 tg Exp $");
__RCSID("$MirBSD: lex.c,v 1.8 2004/12/10 22:21:25 tg Exp $");
/* Structure to keep track of the lexing state and the various pieces of info
* needed for each particular state.
@ -1140,7 +1140,7 @@ set_prompt(int to, Source *s)
} else
prompt = str_save(substitute(ps1, 0),
saved_atemp);
quitenv();
quitenv(NULL);
}
#else /* KSH */
prompt = str_val(global("PS1"));