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Bash 3.0 Official Patch 7


From: Chet Ramey
Subject: Bash 3.0 Official Patch 7
Date: Wed, 8 Sep 2004 15:50:03 -0400 (EDT)

                             BASH PATCH REPORT
                             =================

Bash-Release: 3.0
Patch-ID: bash30-007

Bug-Reported-by: Oliver Kiddle <address@hidden>
                 Tim Waugh <address@hidden>
Bug-Reference-ID: <address@hidden>
                  <address@hidden>
Bug-Reference-URL: 
http://lists.gnu.org/archive/html/bug-bash/2004-07/msg00313.html
                   
http://lists.gnu.org/archive/html/bug-bash/2004-08/msg00056.html

Bug-Description:

Two bugs:

How does it decide what characters are allowed. The following really
looks like a bug to me:
$ echo {<C4>..D}
That's accepted and produces output that seems to wrap round to ^A and
then goes up to D. Note that I'm using an ISO-8859-1 locale. If that
works at all, it should surely descend.

This short script:

var=baz
echo foo{bar,${var}.}
echo foo{bar,${var}}

gives the following output with bash-3.0:

./test: line 2: foo${var.}: bad substitution
foobar} foobaz

Patch:

*** ../bash-3.0/braces.c        Thu Dec  4 11:09:52 2003
--- braces.c    Wed Aug  4 14:34:33 2004
***************
*** 341,346 ****
    if (lhs_t == ST_CHAR)
      {
!       lhs_v = lhs[0];
!       rhs_v = rhs[0];
      }
    else
--- 341,346 ----
    if (lhs_t == ST_CHAR)
      {
!       lhs_v = (unsigned char)lhs[0];
!       rhs_v = (unsigned char)rhs[0];
      }
    else
***************
*** 403,406 ****
--- 403,407 ----
          pass_next = 1;
          i++;
+         level++;
          continue;
        }

*** ../bash-3.0/patchlevel.h    Wed Aug 22 08:05:39 2001
--- patchlevel.h        Thu Sep  2 15:04:32 2004
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 6
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 7
  
  #endif /* _PATCHLEVEL_H_ */




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