| BASH PATCH REPORT |
| ================= |
| |
| Bash-Release: 4.2 |
| Patch-ID: bash42-046 |
| |
| Bug-Reported-by: "Theodoros V. Kalamatianos" <thkala@gmail.com> |
| Bug-Reference-ID: <20140112011131.GE17667@infinity.metashade.com> |
| Bug-Reference-URL: http://lists.gnu.org/archive/html/bug-bash/2014-01/msg00044.html |
| |
| Bug-Description: |
| |
| Bash-4.2 patch 32 introduced a problem with "$@" and arrays expanding empty |
| positional parameters or array elements when using substring expansion, |
| pattern substitution, or case modfication. The empty parameters or array |
| elements are removed instead of expanding to empty strings (""). |
| |
| Patch (apply with `patch -p0'): |
| |
| *** ../bash-4.2-patched/subst.c 2012-12-31 11:52:56.000000000 -0500 |
| --- subst.c 2014-03-31 14:19:56.000000000 -0400 |
| *************** |
| *** 7243,7247 **** |
| ret = alloc_word_desc (); |
| ret->word = temp1; |
| ! if (temp1 && QUOTED_NULL (temp1) && (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))) |
| ret->flags |= W_QUOTED|W_HASQUOTEDNULL; |
| return ret; |
| --- 7243,7253 ---- |
| ret = alloc_word_desc (); |
| ret->word = temp1; |
| ! /* We test quoted_dollar_atp because we want variants with double-quoted |
| ! "$@" to take a different code path. In fact, we make sure at the end |
| ! of expand_word_internal that we're only looking at these flags if |
| ! quoted_dollar_at == 0. */ |
| ! if (temp1 && |
| ! (quoted_dollar_atp == 0 || *quoted_dollar_atp == 0) && |
| ! QUOTED_NULL (temp1) && (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))) |
| ret->flags |= W_QUOTED|W_HASQUOTEDNULL; |
| return ret; |
| *** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010 |
| --- patchlevel.h Thu Feb 24 21:41:34 2011 |
| *************** |
| *** 26,30 **** |
| looks for to find the patch level (for the sccs version string). */ |
| |
| ! #define PATCHLEVEL 45 |
| |
| #endif /* _PATCHLEVEL_H_ */ |
| --- 26,30 ---- |
| looks for to find the patch level (for the sccs version string). */ |
| |
| ! #define PATCHLEVEL 46 |
| |
| #endif /* _PATCHLEVEL_H_ */ |