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ash: parser: Fix old-style command substitution here-document crash

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Upstream commit:

    Date: Fri, 29 Mar 2019 13:49:59 +0800
    parser: Fix old-style command substitution here-document crash

    ... This is caused by the recent change to
    save/restore here-docment list around command substitutions.  In
    doing so we must finish existing here-documents prior to restoring
    the old here-document list.  This is done for new-style command
    substitutions but not for old-style.

    This patch fixes it by doing it for both.

    Fixes: 51e2d88d6e51 ("parser: Save/restore here-documents in...")
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2020-02-22 16:39:27 +01:00
parent e4a0612efd
commit 9a1a659707
1 changed files with 1 additions and 1 deletions
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2
shell/ash.c
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@ -12877,9 +12877,9 @@ parsebackq: {
if (readtoken() != TRP)
raise_error_unexpected_syntax(TRP);
setinputstring(nullstr);
parseheredoc();
}
parseheredoc();
heredoclist = saveheredoclist;
(*nlpp)->n = n;