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BASH PATCH REPORT
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=================
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Bash-Release: 4.2
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Patch-ID: bash42-036
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Bug-Reported-by: gregrwm <backuppc-users@whitleymott.net>
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Bug-Reference-ID: <CAD+dB9B4JG+qUwZBQUwiQmVt0j6NDn=DDTxr9R+nkA8DL4KLJA@mail.gmail.com>
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Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2012-05/msg00108.html
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Bug-Description:
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Bash-4.2 produces incorrect word splitting results when expanding
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double-quoted $@ in the same string as and adjacent to other variable
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expansions. The $@ should be split, the other expansions should not.
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Patch (apply with `patch -p0'):
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*** ../bash-4.2-patched/subst.c 2012-05-02 12:02:33.000000000 -0400
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--- subst.c 2012-07-08 21:19:32.000000000 -0400
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***************
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*** 7923,7927 ****
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/* State flags */
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int had_quoted_null;
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! int has_dollar_at;
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int tflag;
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int pflags; /* flags passed to param_expand */
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--- 7923,7927 ----
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/* State flags */
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int had_quoted_null;
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! int has_dollar_at, temp_has_dollar_at;
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int tflag;
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int pflags; /* flags passed to param_expand */
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***************
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*** 8128,8138 ****
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*expanded_something = 1;
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! has_dollar_at = 0;
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pflags = (word->flags & W_NOCOMSUB) ? PF_NOCOMSUB : 0;
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if (word->flags & W_NOSPLIT2)
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pflags |= PF_NOSPLIT2;
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tword = param_expand (string, &sindex, quoted, expanded_something,
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! &has_dollar_at, "ed_dollar_at,
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&had_quoted_null, pflags);
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if (tword == &expand_wdesc_error || tword == &expand_wdesc_fatal)
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--- 8128,8139 ----
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*expanded_something = 1;
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! temp_has_dollar_at = 0;
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pflags = (word->flags & W_NOCOMSUB) ? PF_NOCOMSUB : 0;
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if (word->flags & W_NOSPLIT2)
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pflags |= PF_NOSPLIT2;
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tword = param_expand (string, &sindex, quoted, expanded_something,
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! &temp_has_dollar_at, "ed_dollar_at,
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&had_quoted_null, pflags);
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+ has_dollar_at += temp_has_dollar_at;
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if (tword == &expand_wdesc_error || tword == &expand_wdesc_fatal)
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***************
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*** 8275,8281 ****
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temp = (char *)NULL;
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! has_dollar_at = 0;
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/* Need to get W_HASQUOTEDNULL flag through this function. */
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! list = expand_word_internal (tword, Q_DOUBLE_QUOTES, 0, &has_dollar_at, (int *)NULL);
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if (list == &expand_word_error || list == &expand_word_fatal)
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--- 8276,8283 ----
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temp = (char *)NULL;
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! temp_has_dollar_at = 0; /* XXX */
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/* Need to get W_HASQUOTEDNULL flag through this function. */
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! list = expand_word_internal (tword, Q_DOUBLE_QUOTES, 0, &temp_has_dollar_at, (int *)NULL);
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! has_dollar_at += temp_has_dollar_at;
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if (list == &expand_word_error || list == &expand_word_fatal)
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*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010
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--- patchlevel.h Thu Feb 24 21:41:34 2011
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***************
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*** 26,30 ****
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 35
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#endif /* _PATCHLEVEL_H_ */
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--- 26,30 ----
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 36
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#endif /* _PATCHLEVEL_H_ */
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