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BASH PATCH REPORT
=================
Bash-Release: 3.2
Patch-ID: bash32-020
Bug-Reported-by: Ian A Watson <WATSON_IAN_A@LILLY.COM>
Bug-Reference-ID: <OFEC551808.69D02C7F-ON8525729A.0045708D-8525729A.0046150B@EliLilly.lilly.com>
Bug-Reference-URL:
Bug-Description:
In some cases of error processing, a jump back to the top-level processing
loop from a builtin command would leave the shell in an inconsistent state.
Patch:
*** ../bash-3.2-patched/sig.c Wed Jan 25 14:57:59 2006
--- bash-3.2/sig.c Sat Mar 10 11:11:30 2007
***************
*** 351,354 ****
--- 351,373 ----
#undef XHANDLER
+ /* Run some of the cleanups that should be performed when we run
+ jump_to_top_level from a builtin command context. XXX - might want to
+ also call reset_parser here. */
+ void
+ top_level_cleanup ()
+ {
+ /* Clean up string parser environment. */
+ while (parse_and_execute_level)
+ parse_and_execute_cleanup ();
+
+ #if defined (PROCESS_SUBSTITUTION)
+ unlink_fifo_list ();
+ #endif /* PROCESS_SUBSTITUTION */
+
+ run_unwind_protects ();
+ loop_level = continuing = breaking = 0;
+ return_catch_flag = 0;
+ }
+
/* What to do when we've been interrupted, and it is safe to handle it. */
void
*** ../bash-3.2-patched/sig.h Wed Jan 25 14:50:27 2006
--- bash-3.2/sig.h Sat Mar 10 11:14:18 2007
***************
*** 122,125 ****
--- 122,126 ----
extern void initialize_terminating_signals __P((void));
extern void reset_terminating_signals __P((void));
+ extern void top_level_cleanup __P((void));
extern void throw_to_top_level __P((void));
extern void jump_to_top_level __P((int)) __attribute__((__noreturn__));
*** ../bash-3.2-patched/builtins/common.c Tue Apr 3 16:47:13 2007
--- bash-3.2/builtins/common.c Mon Apr 30 15:01:33 2007
***************
*** 132,135 ****
--- 132,136 ----
{
builtin_error (_("too many arguments"));
+ top_level_cleanup ();
jump_to_top_level (DISCARD);
}
***************
*** 396,400 ****
throw_to_top_level ();
else
! jump_to_top_level (DISCARD);
}
no_args (list->next);
--- 410,417 ----
throw_to_top_level ();
else
! {
! top_level_cleanup ();
! jump_to_top_level (DISCARD);
! }
}
no_args (list->next);
*** ../bash-3.2-patched/subst.c Tue Apr 3 16:47:19 2007
--- bash-3.2/subst.c Tue Jul 17 09:45:11 2007
***************
*** 1279,1283 ****
if (no_longjmp_on_fatal_error == 0)
{ /* { */
! report_error ("bad substitution: no closing `%s' in %s", "}", string);
last_command_exit_value = EXECUTION_FAILURE;
exp_jump_to_top_level (DISCARD);
--- 1290,1294 ----
if (no_longjmp_on_fatal_error == 0)
{ /* { */
! report_error (_("bad substitution: no closing `%s' in %s"), "}", string);
last_command_exit_value = EXECUTION_FAILURE;
exp_jump_to_top_level (DISCARD);
***************
*** 7662,7665 ****
--- 7706,7711 ----
expand_no_split_dollar_star = 0; /* XXX */
expanding_redir = 0;
+
+ top_level_cleanup (); /* from sig.c */
jump_to_top_level (v);
***************
*** 7880,7884 ****
{
report_error (_("no match: %s"), tlist->word->word);
! jump_to_top_level (DISCARD);
}
else if (allow_null_glob_expansion == 0)
--- 7927,7931 ----
{
report_error (_("no match: %s"), tlist->word->word);
! exp_jump_to_top_level (DISCARD);
}
else if (allow_null_glob_expansion == 0)
*** ../bash-3.2-patched/arrayfunc.c Thu Jul 27 09:37:59 2006
--- bash-3.2/arrayfunc.c Thu May 31 11:55:46 2007
***************
*** 619,622 ****
--- 619,624 ----
{
last_command_exit_value = EXECUTION_FAILURE;
+
+ top_level_cleanup ();
jump_to_top_level (DISCARD);
}
*** ../bash-3.2-patched/expr.c Wed Dec 28 17:47:03 2005
--- bash-3.2/expr.c Tue Apr 24 14:17:59 2007
***************
*** 930,933 ****
--- 930,934 ----
{
expr_unwind ();
+ top_level_cleanup ();
jump_to_top_level (DISCARD);
}
*** ../bash-3.2-patched/variables.c Fri Sep 8 13:33:32 2006
--- bash-3.2/variables.c Tue Jul 17 09:54:59 2007
***************
*** 1822,1830 ****
lval = evalexp (oval, &expok); /* ksh93 seems to do this */
if (expok == 0)
! jump_to_top_level (DISCARD);
}
rval = evalexp (value, &expok);
if (expok == 0)
! jump_to_top_level (DISCARD);
if (flags & ASS_APPEND)
rval += lval;
--- 1855,1869 ----
lval = evalexp (oval, &expok); /* ksh93 seems to do this */
if (expok == 0)
! {
! top_level_cleanup ();
! jump_to_top_level (DISCARD);
! }
}
rval = evalexp (value, &expok);
if (expok == 0)
! {
! top_level_cleanup ();
! jump_to_top_level (DISCARD);
! }
if (flags & ASS_APPEND)
rval += lval;
*** ../bash-3.2/patchlevel.h Thu Apr 13 08:31:04 2006
--- bash-3.2/patchlevel.h Mon Oct 16 14:22:54 2006
***************
*** 26,30 ****
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 19
#endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
looks for to find the patch level (for the sccs version string). */
! #define PATCHLEVEL 20
#endif /* _PATCHLEVEL_H_ */
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