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Another lexical fix for here-documents (re: 6e515f1d)

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OpenSUSE patch from:
https://build.opensuse.org/package/view_file/shells/ksh/ksh93-heredoc.dif

src/cmd/ksh93/sh/lex.c: here_copy():
- Do not potentially seek back a zero or negative length.
This commit is contained in:
Martijn Dekker 2021-01-28 06:32:42 +00:00
parent 4604df9ada
commit 674a0c3559
1 changed files with 2 additions and 0 deletions
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2
src/cmd/ksh93/sh/lex.c
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@ -1891,6 +1891,8 @@ static int here_copy(Lex_t *lp,register struct ionod *iop)
sfputc(sp,'\\');
}
}
if(LEN < 1)
LEN = 1;
bufp = fcseek(-LEN);
}
else