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  1.   f12
  2.   bash40-013
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			     BASH PATCH REPORT
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			     =================
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Bash-Release:	4.0
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Patch-ID:	bash40-013
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Bug-Reported-by:	jidanni@jidanni.org
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Bug-Reference-ID:
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Bug-Reference-URL:	http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=519165
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Bug-Description:
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Though references to $@ when there are no positional parameters will now
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cause the shell to exit if the `errexit' option has been enabled, constructs
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such as ${@:-foo} should not cause an exit.
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Patch:
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*** ../bash-4.0-patched/subst.c	2009-03-08 21:24:39.000000000 -0400
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--- subst.c	2009-03-14 19:04:10.000000000 -0400
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***************
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*** 86,89 ****
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--- 86,90 ----
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  /* Flags for the `pflags' argument to param_expand() */
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  #define PF_NOCOMSUB	0x01	/* Do not perform command substitution */
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+ #define PF_IGNUNBOUND	0x02	/* ignore unbound vars even if -u set */
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  /* These defs make it easier to use the editor. */
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***************
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*** 264,268 ****
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  static int chk_arithsub __P((const char *, int));
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! static WORD_DESC *parameter_brace_expand_word __P((char *, int, int));
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  static WORD_DESC *parameter_brace_expand_indir __P((char *, int, int, int *, int *));
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  static WORD_DESC *parameter_brace_expand_rhs __P((char *, char *, int, int, int *, int *));
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--- 265,269 ----
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  static int chk_arithsub __P((const char *, int));
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! static WORD_DESC *parameter_brace_expand_word __P((char *, int, int, int));
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  static WORD_DESC *parameter_brace_expand_indir __P((char *, int, int, int *, int *));
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  static WORD_DESC *parameter_brace_expand_rhs __P((char *, char *, int, int, int *, int *));
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***************
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*** 5196,5202 ****
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     NAME was found inside of a double-quoted expression. */
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  static WORD_DESC *
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! parameter_brace_expand_word (name, var_is_special, quoted)
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       char *name;
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!      int var_is_special, quoted;
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  {
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    WORD_DESC *ret;
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--- 5197,5203 ----
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     NAME was found inside of a double-quoted expression. */
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  static WORD_DESC *
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! parameter_brace_expand_word (name, var_is_special, quoted, pflags)
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       char *name;
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!      int var_is_special, quoted, pflags;
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  {
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    WORD_DESC *ret;
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***************
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*** 5230,5234 ****
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        ret = param_expand (tt, &sindex, quoted, (int *)NULL, (int *)NULL,
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! 			  (int *)NULL, (int *)NULL, 0);
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        free (tt);
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      }
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--- 5231,5235 ----
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        ret = param_expand (tt, &sindex, quoted, (int *)NULL, (int *)NULL,
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! 			  (int *)NULL, (int *)NULL, pflags);
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        free (tt);
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      }
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***************
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*** 5291,5295 ****
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    WORD_DESC *w;
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!   w = parameter_brace_expand_word (name, var_is_special, quoted);
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    t = w->word;
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    /* Have to dequote here if necessary */
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--- 5292,5296 ----
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    WORD_DESC *w;
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!   w = parameter_brace_expand_word (name, var_is_special, quoted, PF_IGNUNBOUND);
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    t = w->word;
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    /* Have to dequote here if necessary */
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***************
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*** 5308,5312 ****
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      return (WORD_DESC *)NULL;
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!   w = parameter_brace_expand_word (t, SPECIAL_VAR(t, 0), quoted);
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    free (t);
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--- 5309,5313 ----
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      return (WORD_DESC *)NULL;
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!   w = parameter_brace_expand_word (t, SPECIAL_VAR(t, 0), quoted, 0);
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    free (t);
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***************
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*** 6659,6663 ****
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      tdesc = parameter_brace_expand_indir (name + 1, var_is_special, quoted, quoted_dollar_atp, contains_dollar_at);
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    else
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!     tdesc = parameter_brace_expand_word (name, var_is_special, quoted);
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    if (tdesc)
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--- 6660,6664 ----
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      tdesc = parameter_brace_expand_indir (name + 1, var_is_special, quoted, quoted_dollar_atp, contains_dollar_at);
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    else
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!     tdesc = parameter_brace_expand_word (name, var_is_special, quoted, PF_IGNUNBOUND);
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    if (tdesc)
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***************
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*** 6990,6994 ****
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        list = list_rest_of_args ();
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!       if (list == 0 && unbound_vars_is_error)
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  	{
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  	  uerror[0] = '$';
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--- 6991,6995 ----
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        list = list_rest_of_args ();
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!       if (list == 0 && unbound_vars_is_error && (pflags & PF_IGNUNBOUND) == 0)
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  	{
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  	  uerror[0] = '$';
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***************
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*** 7052,7056 ****
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        list = list_rest_of_args ();
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!       if (list == 0 && unbound_vars_is_error)
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  	{
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  	  uerror[0] = '$';
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--- 7053,7057 ----
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        list = list_rest_of_args ();
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!       if (list == 0 && unbound_vars_is_error && (pflags & PF_IGNUNBOUND) == 0)
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  	{
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  	  uerror[0] = '$';
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*** ../bash-4.0/patchlevel.h	2009-01-04 14:32:40.000000000 -0500
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--- patchlevel.h	2009-02-22 16:11:31.000000000 -0500
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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 12
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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 13
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  #endif /* _PATCHLEVEL_H_ */

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