Imported from ../bash-3.2.48.tar.gz.

array.c

@@ -120,7 +120,6 @@ ARRAY	*a;
 	return(a1);
 }
 
-#ifdef INCLUDE_UNUSED
 /*
  * Make and return a new array composed of the elements in array A from
  * S to E, inclusive.
@@ -141,13 +140,12 @@ ARRAY_ELEMENT	*s, *e;
 	for (p = s, i = 0; p != e; p = element_forw(p), i++) {
 		n = array_create_element (element_index(p), element_value(p));
 		ADD_BEFORE(a->head, n);
-		mi = element_index(ae);
+		mi = element_index(n);
 	}
 	a->num_elements = i;
 	a->max_index = mi;
 	return a;
 }
-#endif
 
 /*
  * Walk the array, calling FUNC once for each element, with the array
@@ -300,6 +298,23 @@ ARRAY	*array;
 	return array;
 }
 
+ARRAY	*
+array_quote_escapes(array)
+ARRAY	*array;
+{
+	ARRAY_ELEMENT	*a;
+	char	*t;
+
+	if (array == 0 || array_head(array) == 0 || array_empty(array))
+		return (ARRAY *)NULL;
+	for (a = element_forw(array->head); a != array->head; a = element_forw(a)) {
+		t = quote_escapes (a->value);
+		FREE(a->value);
+		a->value = t;
+	}
+	return array;
+}
+
 /*
  * Return a string whose elements are the members of array A beginning at
  * index START and spanning NELEM members.  Null elements are counted.
@@ -311,9 +326,10 @@ ARRAY	*a;
 arrayind_t	start, nelem;
 int	starsub, quoted;
 {
+	ARRAY		*a2;
 	ARRAY_ELEMENT	*h, *p;
 	arrayind_t	i;
-	char		*ifs, sep[2];
+	char		*ifs, sep[2], *t;
 
 	p = a ? array_head (a) : 0;
 	if (p == 0 || array_empty (a) || start > array_max_index(a))
@@ -336,6 +352,13 @@ int	starsub, quoted;
 	for (i = 0, h = p; p != a->head && i < nelem; i++, p = element_forw(p))
 		;
 
+	a2 = array_slice(a, h, p);
+
+	if (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT))
+		array_quote(a2);
+	else
+		array_quote_escapes(a2);
+
 	if (starsub && (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT))) {
 		ifs = getifs();
 		sep[0] = ifs ? *ifs : '\0';
@@ -343,7 +366,10 @@ int	starsub, quoted;
 		sep[0] = ' ';
 	sep[1] = '\0';
 
-	return (array_to_string_internal (h, p, sep, quoted));
+	t = array_to_string (a2, sep, 0);
+	array_dispose(a2);
+
+	return t;
 }
 
 char *
@@ -367,7 +393,9 @@ int	mflags;
 	}
 
 	if (mflags & MATCH_QUOTED)
-		array_quote (a2);
+		array_quote(a2);
+	else
+		array_quote_escapes(a2);
 	if (mflags & MATCH_STARSUB) {
 		ifs = getifs();
 		sifs[0] = ifs ? *ifs : '\0';
@@ -655,7 +683,7 @@ int	quoted;
 		is = inttostr (element_index(ae), indstr, sizeof(indstr));
 		valstr = element_value (ae) ? sh_double_quote (element_value(ae))
 					    : (char *)NULL;
-		elen = STRLEN (indstr) + 8 + STRLEN (valstr);
+		elen = STRLEN (is) + 8 + STRLEN (valstr);
 		RESIZE_MALLOCED_BUFFER (result, rlen, (elen + 1), rsize, rsize);
 
 		result[rlen++] = '[';

array.h

@@ -55,6 +55,7 @@ extern int	array_rshift __P((ARRAY *, int, char *));
 extern ARRAY_ELEMENT *array_unshift_element __P((ARRAY *));
 extern int	array_shift_element __P((ARRAY *, char *));
 extern ARRAY	*array_quote __P((ARRAY *));
+extern ARRAY	*array_quote_escapes __P((ARRAY *));
 
 extern char	*array_subrange __P((ARRAY *, arrayind_t, arrayind_t, int, int));
 extern char	*array_patsub __P((ARRAY *, char *, char *, int));

arrayfunc.c

@@ -618,6 +618,8 @@ array_expand_index (s, len)
   if (expok == 0)
     {
       last_command_exit_value = EXECUTION_FAILURE;
+
+      top_level_cleanup ();      
       jump_to_top_level (DISCARD);
     }
   return val;
@@ -720,7 +722,7 @@ array_value_internal (s, quoted, allow_all, rtype)
   if (ALL_ELEMENT_SUB (t[0]) && t[1] == ']')
     {
       if (rtype)
-	*rtype = 1;
+	*rtype = (t[0] == '*') ? 1 : 2;
       if (allow_all == 0)
 	{
 	  err_badarraysub (s);

bashhist.c

@@ -80,6 +80,7 @@ static struct ignorevar histignore =
    list.  This is different than the user-controlled behaviour; this
    becomes zero when we read lines from a file, for example. */
 int remember_on_history = 1;
+int enable_history_list = 1;	/* value for `set -o history' */
 
 /* The number of lines that Bash has added to this history session.  The
    difference between the number of the top element in the history list
@@ -234,7 +235,7 @@ bash_history_reinit (interact)
   history_expansion = interact != 0;
   history_expansion_inhibited = 1;
 #endif
-  remember_on_history = interact != 0;
+  remember_on_history = enable_history_list = interact != 0;
   history_inhibit_expansion_function = bash_history_inhibit_expansion;
 }
 

bashhist.h

@@ -31,6 +31,9 @@
 #define HC_IGNBOTH	(HC_IGNSPACE|HC_IGNDUPS)
 
 extern int remember_on_history;
+extern int enable_history_list;		/* value for `set -o history' */
+extern int literal_history;		/* controlled by `shopt lithist' */
+extern int force_append_history;
 extern int history_lines_this_session;
 extern int history_lines_in_file;
 extern int history_expansion;

bashline.c

@@ -2357,7 +2357,7 @@ bash_directory_completion_hook (dirname)
   if (should_expand_dirname)  
     {
       new_dirname = savestring (local_dirname);
-      wl = expand_prompt_string (new_dirname, 0);	/* does the right thing */
+      wl = expand_prompt_string (new_dirname, 0, W_NOCOMSUB);	/* does the right thing */
       if (wl)
 	{
 	  *dirname = string_list (wl);

builtins/common.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -131,6 +131,7 @@ no_args (list)
   if (list)
     {
       builtin_error (_("too many arguments"));
+      top_level_cleanup ();
       jump_to_top_level (DISCARD);
     }
 }
@@ -395,7 +396,10 @@ get_numeric_arg (list, fatal)
 	  if (fatal)
 	    throw_to_top_level ();
 	  else
-	    jump_to_top_level (DISCARD);
+	    {
+	      top_level_cleanup ();
+	      jump_to_top_level (DISCARD);
+	    }
 	}
       no_args (list->next);
     }
@@ -475,7 +479,11 @@ get_working_directory (for_whom)
 
   if (the_current_working_directory == 0)
     {
+#if defined (GETCWD_BROKEN)
+      the_current_working_directory = getcwd (0, PATH_MAX);
+#else
       the_current_working_directory = getcwd (0, 0);
+#endif
       if (the_current_working_directory == 0)
 	{
 	  fprintf (stderr, _("%s: error retrieving current directory: %s: %s\n"),

builtins/evalstring.c

@@ -67,6 +67,14 @@ int parse_and_execute_level = 0;
 
 static int cat_file __P((REDIRECT *));
 
+#if defined (HISTORY)
+static void
+set_history_remembering ()
+{
+  remember_on_history = enable_history_list;
+}
+#endif
+
 /* How to force parse_and_execute () to clean up after itself. */
 void
 parse_and_execute_cleanup ()
@@ -115,7 +123,10 @@ parse_and_execute (string, from_file, flags)
   lreset = flags & SEVAL_RESETLINE;
 
 #if defined (HISTORY)
-  unwind_protect_int (remember_on_history);	/* can be used in scripts */
+  if (parse_and_execute_level == 0)
+    add_unwind_protect (set_history_remembering, (char *)NULL);
+  else
+    unwind_protect_int (remember_on_history);	/* can be used in scripts */
 #  if defined (BANG_HISTORY)
   if (interactive_shell)
     {
@@ -237,6 +248,7 @@ parse_and_execute (string, from_file, flags)
 	       *   parse_and_execute has not been called recursively AND
 	       *   we're not running a trap AND
 	       *   we have parsed the full command (string == '\0') AND
+	       *   we're not going to run the exit trap AND
 	       *   we have a simple command without redirections AND
 	       *   the command is not being timed AND
 	       *   the command's return status is not being inverted
@@ -247,7 +259,8 @@ parse_and_execute (string, from_file, flags)
 		  running_trap == 0 &&
 		  *bash_input.location.string == '\0' &&
 		  command->type == cm_simple &&
-		  !command->redirects && !command->value.Simple->redirects &&
+		  signal_is_trapped (EXIT_TRAP) == 0 &&
+		  command->redirects == 0 && command->value.Simple->redirects == 0 &&
 		  ((command->flags & CMD_TIME_PIPELINE) == 0) &&
 		  ((command->flags & CMD_INVERT_RETURN) == 0))
 		{

builtins/printf.def

@@ -1,7 +1,7 @@
 This file is printf.def, from which is created printf.c.
 It implements the builtin "printf" in Bash.
 
-Copyright (C) 1997-2005 Free Software Foundation, Inc.
+Copyright (C) 1997-2007 Free Software Foundation, Inc.
 
 This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -49,6 +49,12 @@ $END
 #  define INT_MIN		(-2147483647-1)
 #endif
 
+#if defined (PREFER_STDARG)
+#  include <stdarg.h>
+#else
+#  include <varargs.h>
+#endif
+
 #include <stdio.h>
 #include <chartypes.h>
 
@@ -64,6 +70,10 @@ $END
 #include "bashgetopt.h"
 #include "common.h"
 
+#if defined (PRI_MACROS_BROKEN)
+#  undef PRIdMAX
+#endif
+
 #if !defined (PRIdMAX)
 #  if HAVE_LONG_LONG
 #    define PRIdMAX	"lld"
@@ -151,6 +161,10 @@ extern int errno;
 #define SKIP1 "#'-+ 0"
 #define LENMODS "hjlLtz"
 
+#ifndef HAVE_ASPRINTF
+extern int asprintf __P((char **, const char *, ...)) __attribute__((__format__ (printf, 2, 3)));
+#endif
+
 static void printf_erange __P((char *));
 static int printstr __P((char *, char *, int, int, int));
 static int tescape __P((char *, char *, int *));

builtins/read.def

@@ -127,14 +127,14 @@ read_builtin (list)
      WORD_LIST *list;
 {
   register char *varname;
-  int size, i, nr, pass_next, saw_escape, eof, opt, retval, code;
+  int size, i, nr, pass_next, saw_escape, eof, opt, retval, code, print_ps2;
-  int input_is_tty, input_is_pipe, unbuffered_read;
+  int input_is_tty, input_is_pipe, unbuffered_read, skip_ctlesc, skip_ctlnul;
   int raw, edit, nchars, silent, have_timeout, fd;
   unsigned int tmout;
   intmax_t intval;
   char c;
   char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname;
-  char *e, *t, *t1;
+  char *e, *t, *t1, *ps2, *tofree;
   struct stat tsb;
   SHELL_VAR *var;
 #if defined (ARRAY_VARS)
@@ -148,6 +148,7 @@ read_builtin (list)
   USE_VAR(size);
   USE_VAR(i);
   USE_VAR(pass_next);
+  USE_VAR(print_ps2);
   USE_VAR(saw_escape);
   USE_VAR(input_is_pipe);
 /*  USE_VAR(raw); */
@@ -163,6 +164,7 @@ read_builtin (list)
   USE_VAR(rlind);
 #endif
   USE_VAR(list);
+  USE_VAR(ps2);
 
   i = 0;		/* Index into the string that we are reading. */
   raw = edit = 0;	/* Not reading raw input by default. */
@@ -386,7 +388,8 @@ read_builtin (list)
   setmode (0, O_TEXT);
 #endif
 
-  for (eof = retval = 0;;)
+  ps2 = 0;
+  for (print_ps2 = eof = retval = 0;;)
     {
 #if defined (READLINE)
       if (edit)
@@ -412,6 +415,15 @@ read_builtin (list)
 	{
 #endif
 
+      if (print_ps2)
+	{
+	  if (ps2 == 0)
+	    ps2 = get_string_value ("PS2");
+	  fprintf (stderr, "%s", ps2 ? ps2 : "");
+	  fflush (stderr);
+	  print_ps2 = 0;
+	}
+
       if (unbuffered_read)
 	retval = zread (fd, &c, 1);
       else
@@ -440,7 +452,11 @@ read_builtin (list)
 	{
 	  pass_next = 0;
 	  if (c == '\n')
-	    i--;		/* back up over the CTLESC */
+	    {
+	      i--;		/* back up over the CTLESC */
+	      if (interactive && input_is_tty && raw == 0)
+		print_ps2 = 1;
+	    }
 	  else
 	    goto add_char;
 	  continue;
@@ -658,12 +674,13 @@ add_char:
 #else
   /* Check whether or not the number of fields is exactly the same as the
      number of variables. */
+  tofree = NULL;
   if (*input_string)
     {
       t1 = input_string;
       t = get_word_from_string (&input_string, ifs_chars, &e);
       if (*input_string == 0)
-	input_string = t;
+	tofree = input_string = t;
       else
 	input_string = strip_trailing_ifs_whitespace (t1, ifs_chars, saw_escape);
     }
@@ -678,6 +695,8 @@ add_char:
   else
     var = bind_read_variable (list->word->word, input_string);
   stupidly_hack_special_variables (list->word->word);
+  FREE (tofree);
+
   if (var)
     VUNSETATTR (var, att_invisible);
   xfree (orig_input_string);

builtins/set.def

@@ -189,7 +189,7 @@ struct {
   { "histexpand", 'H', (int *)NULL, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL  },
 #endif /* BANG_HISTORY */
 #if defined (HISTORY)
-  { "history",   '\0', &remember_on_history, bash_set_history, (setopt_get_func_t *)NULL },
+  { "history",   '\0', &enable_history_list, bash_set_history, (setopt_get_func_t *)NULL },
 #endif
   { "ignoreeof", '\0', &ignoreeof, set_ignoreeof, (setopt_get_func_t *)NULL },
   { "interactive-comments", '\0', &interactive_comments, (setopt_set_func_t *)NULL, (setopt_get_func_t *)NULL },
@@ -381,13 +381,17 @@ bash_set_history (on_or_off, option_name)
 {
   if (on_or_off == FLAG_ON)
     {
+      enable_history_list = 1;
       bash_history_enable ();
       if (history_lines_this_session == 0)
 	load_history ();
     }
   else
-    bash_history_disable ();
+    {
-  return (1 - remember_on_history);
+      enable_history_list = 0;
+      bash_history_disable ();
+    }
+  return (1 - enable_history_list);
 }
 #endif
 
@@ -565,7 +569,7 @@ void
 reset_shell_options ()
 {
 #if defined (HISTORY)
-  remember_on_history = 1;
+  remember_on_history = enable_history_list = 1;
 #endif
   ignoreeof = 0;
 }

builtins/shopt.def

@@ -101,11 +101,14 @@ static void shopt_error __P((char *));
 
 static int set_shellopts_after_change __P((int));
 
+static int set_compatibility_level __P((int));
+
 #if defined (RESTRICTED_SHELL)
 static int set_restricted_shell __P((int));
 #endif
 
 static int shopt_login_shell;
+static int shopt_compat31;
 
 typedef int shopt_set_func_t __P((int));
 
@@ -121,6 +124,7 @@ static struct {
 #if defined (HISTORY)
   { "cmdhist", &command_oriented_history, (shopt_set_func_t *)NULL },
 #endif
+  { "compat31", &shopt_compat31, set_compatibility_level },
   { "dotglob", &glob_dot_filenames, (shopt_set_func_t *)NULL },
   { "execfail", &no_exit_on_failed_exec, (shopt_set_func_t *)NULL },
   { "expand_aliases", &expand_aliases, (shopt_set_func_t *)NULL },
@@ -459,6 +463,18 @@ set_shellopts_after_change (mode)
   return (0);
 }
 
+static int
+set_compatibility_level (mode)
+     int mode;
+{
+  /* Need to change logic here as we add more compatibility levels */
+  if (shopt_compat31)
+    shell_compatibility_level = 31;
+  else
+    shell_compatibility_level = 32;
+  return 0;
+}
+
 #if defined (RESTRICTED_SHELL)
 /* Don't allow the value of restricted_shell to be modified. */
 

config-bot.h

@@ -1,7 +1,7 @@
 /* config-bot.h */
 /* modify settings or make new ones based on what autoconf tells us. */
 
-/* Copyright (C) 1989-2002 Free Software Foundation, Inc.
+/* Copyright (C) 1989-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -70,9 +70,11 @@
 #  define TERMIOS_MISSING
 #endif
 
-/* If we have a getcwd(3), but it calls popen(), #undef HAVE_GETCWD so
+/* If we have a getcwd(3), but one that does not dynamically allocate memory,
-   the replacement in getcwd.c will be built. */
+   #undef HAVE_GETCWD so the replacement in getcwd.c will be built.  We do
-#if defined (HAVE_GETCWD) && defined (GETCWD_BROKEN)
+   not do this on Solaris, because their implementation of loopback mounts
+   breaks the traditional file system assumptions that getcwd uses. */
+#if defined (HAVE_GETCWD) && defined (GETCWD_BROKEN) && !defined (SOLARIS)
 #  undef HAVE_GETCWD
 #endif
 

config.h.in

@@ -1,6 +1,6 @@
 /* config.h -- Configuration file for bash. */
 
-/* Copyright (C) 1987-2006 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -413,6 +413,8 @@
 
 #undef HAVE_DECL_STRTOLD
 
+#undef PRI_MACROS_BROKEN
+
 #undef STRTOLD_BROKEN
 
 /* Define if WCONTINUED is defined in system headers, but rejected by waitpid */
@@ -1006,6 +1008,9 @@
 /* Define if you have the `dcgettext' function. */
 #undef HAVE_DCGETTEXT
 
+/* Define if you have the `localeconv' function. */
+#undef HAVE_LOCALECONV
+
 /* Define if your system has a working `malloc' function. */
 /* #undef HAVE_MALLOC */
 

configure

@@ -4871,7 +4871,7 @@ _ACEOF
 		# static version specified as -llibname to override the
 		# dynamic version
 		case "${host_os}" in
-		darwin8*)	READLINE_LIB='${READLINE_LIBRARY}' ;;
+		darwin[89]*)	READLINE_LIB='${READLINE_LIBRARY}' ;;
 		*)		READLINE_LIB=-lreadline ;;
 		esac
 	fi
@@ -27316,7 +27316,8 @@ sco3.2v5*)	LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DPATH_MAX=1024" ;;
 sco3.2v4*)	LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DPATH_MAX=1024" ;;
 sco3.2*)	LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
 sunos4*)	LOCAL_CFLAGS=-DSunOS4 ;;
-solaris2.5*)	LOCAL_CFLAGS=-DSunOS5 ;;
+solaris2.5*)	LOCAL_CFLAGS="-DSunOS5 -DSOLARIS" ;;
+solaris2*)	LOCAL_CFLAGS=-DSOLARIS ;;
 lynxos*)	LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 linux*)		LOCAL_LDFLAGS=-rdynamic		 # allow dynamic loading
 		case "`uname -r`" in

configure.in

@@ -5,7 +5,7 @@ dnl report bugs to chet@po.cwru.edu
 dnl
 dnl Process this file with autoconf to produce a configure script.
 
-# Copyright (C) 1987-2006 Free Software Foundation, Inc.
+# Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -518,7 +518,7 @@ if test $opt_readline = yes; then
 		# static version specified as -llibname to override the
 		# dynamic version
 		case "${host_os}" in
-		darwin8*)	READLINE_LIB='${READLINE_LIBRARY}' ;;
+		darwin[[89]]*)	READLINE_LIB='${READLINE_LIBRARY}' ;;
 		*)		READLINE_LIB=-lreadline ;;
 		esac
 	fi
@@ -991,7 +991,8 @@ sco3.2v5*)	LOCAL_CFLAGS="-b elf -DWAITPID_BROKEN -DPATH_MAX=1024" ;;
 sco3.2v4*)	LOCAL_CFLAGS="-DMUST_UNBLOCK_CHLD -DPATH_MAX=1024" ;;
 sco3.2*)	LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
 sunos4*)	LOCAL_CFLAGS=-DSunOS4 ;;
-solaris2.5*)	LOCAL_CFLAGS=-DSunOS5 ;;
+solaris2.5*)	LOCAL_CFLAGS="-DSunOS5 -DSOLARIS" ;;
+solaris2*)	LOCAL_CFLAGS=-DSOLARIS ;;
 lynxos*)	LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
 linux*)		LOCAL_LDFLAGS=-rdynamic		 # allow dynamic loading
 		case "`uname -r`" in

doc/bash.1

@@ -7977,6 +7977,12 @@ attempts to save all lines of a multiple-line
 command in the same history entry.  This allows
 easy re-editing of multi-line commands.
 .TP 8
+.B compat31
+If set,
+.B bash
+changes its behavior to that of version 3.1 with respect to quoted
+arguments to the conditional command's =~ operator.
+.TP 8
 .B dotglob
 If set, 
 .B bash

doc/bashref.texi

@@ -3598,6 +3598,11 @@ attempts to save all lines of a multiple-line
 command in the same history entry.  This allows
 easy re-editing of multi-line commands.
 
+@item compat31
+If set, Bash
+changes its behavior to that of version 3.1 with respect to quoted
+arguments to the conditional command's =~ operator.
+
 @item dotglob
 If set, Bash includes filenames beginning with a `.' in
 the results of filename expansion.

execute_cmd.c

@@ -1,6 +1,6 @@
 /* execute_cmd.c -- Execute a COMMAND structure. */
 
-/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -501,8 +501,15 @@ execute_command_internal (command, asynchronous, pipe_in, pipe_out,
   volatile int last_pid;
   volatile int save_line_number;
 
+#if 0
   if (command == 0 || breaking || continuing || read_but_dont_execute)
     return (EXECUTION_SUCCESS);
+#else
+  if (breaking || continuing)
+    return (last_command_exit_value);
+  if (command == 0 || read_but_dont_execute)
+    return (EXECUTION_SUCCESS);
+#endif
 
   QUIT;
   run_pending_traps ();
@@ -614,7 +621,7 @@ execute_command_internal (command, asynchronous, pipe_in, pipe_out,
       cleanup_redirects (redirection_undo_list);
       redirection_undo_list = (REDIRECT *)NULL;
       dispose_exec_redirects ();
-      return (EXECUTION_FAILURE);
+      return (last_command_exit_value = EXECUTION_FAILURE);
     }
 
   if (redirection_undo_list)
@@ -2546,7 +2553,8 @@ execute_cond_node (cond)
       arg1 = cond_expand_word (cond->left->op, 0);
       if (arg1 == 0)
 	arg1 = nullstr;
-      arg2 = cond_expand_word (cond->right->op, patmatch||rmatch);
+      arg2 = cond_expand_word (cond->right->op,
+			       (rmatch && shell_compatibility_level > 31) ? 2 : (patmatch ? 1 : 0));
       if (arg2 == 0)
 	arg2 = nullstr;
 
@@ -3050,6 +3058,11 @@ execute_simple_command (simple_command, pipe_in, pipe_out, async, fds_to_close)
   if (command_line == 0)
     command_line = savestring (the_printed_command_except_trap);
 
+#if defined (PROCESS_SUBSTITUTION)
+  if ((subshell_environment & SUBSHELL_COMSUB) && (simple_command->flags & CMD_NO_FORK) && fifos_pending() > 0)
+    simple_command->flags &= ~CMD_NO_FORK;
+#endif
+
   execute_disk_command (words, simple_command->redirects, command_line,
 			pipe_in, pipe_out, async, fds_to_close,
 			simple_command->flags);
@@ -3875,6 +3888,8 @@ initialize_subshell ()
     shell_variables = shell_variables->down;
 
   clear_unwind_protect_list (0);
+  /* XXX -- are there other things we should be resetting here? */
+  parse_and_execute_level = 0;		/* nothing left to restore it */
 
   /* We're no longer inside a shell function. */
   variable_context = return_catch_flag = 0;

expr.c

@@ -286,6 +286,8 @@ expr_unwind ()
       free (expr_stack[expr_depth]);
     }
   free (expr_stack[expr_depth]);	/* free the allocated EXPR_CONTEXT */
+
+  noeval = 0;	/* XXX */
 }
 
 static void
@@ -319,6 +321,7 @@ evalexp (expr, validp)
   procenv_t oevalbuf;
 
   val = 0;
+  noeval = 0;
 
   FASTCOPY (evalbuf, oevalbuf, sizeof (evalbuf));
 
@@ -517,7 +520,8 @@ expcond ()
  	  set_noeval = 1;
 	  noeval++;
  	}
-      val2 = explor ();
+
+      val2 = expcond ();
       if (set_noeval)
 	noeval--;
       rval = cval ? val1 : val2;
@@ -929,6 +933,7 @@ expr_streval (tok, e)
       if (interactive_shell)
 	{
 	  expr_unwind ();
+	  top_level_cleanup ();
 	  jump_to_top_level (DISCARD);
 	}
       else

findcmd.c

@@ -308,7 +308,7 @@ search_for_command (pathname)
   if (hashed_file && (posixly_correct || check_hashed_filenames))
     {
       st = file_status (hashed_file);
-      if ((st ^ (FS_EXISTS | FS_EXECABLE)) != 0)
+      if ((st & (FS_EXISTS|FS_EXECABLE)) != (FS_EXISTS|FS_EXECABLE))
 	{
 	  phash_remove (pathname);
 	  free (hashed_file);

jobs.c

@@ -250,6 +250,7 @@ static int job_exit_status __P((int));
 static int job_exit_signal __P((int));
 static int set_job_status_and_cleanup __P((int));
 
+static WAIT job_signal_status __P((int));
 static WAIT raw_job_exit_status __P((int));
 
 static void notify_of_job_status __P((void));
@@ -783,11 +784,13 @@ reset_job_indices ()
   if (jobs[js.j_firstj] == 0)
     {
       old = js.j_firstj++;
+      if (old >= js.j_jobslots)
+	old = js.j_jobslots - 1;
       while (js.j_firstj != old)
 	{
 	  if (js.j_firstj >= js.j_jobslots)
 	    js.j_firstj = 0;
-	  if (jobs[js.j_firstj])
+	  if (jobs[js.j_firstj] || js.j_firstj == old)	/* needed if old == 0 */
 	    break;
 	  js.j_firstj++;
 	}
@@ -797,11 +800,13 @@ reset_job_indices ()
   if (jobs[js.j_lastj] == 0)
     {
       old = js.j_lastj--;
+      if (old < 0)
+	old = 0;
       while (js.j_lastj != old)
 	{
 	  if (js.j_lastj < 0)
 	    js.j_lastj = js.j_jobslots - 1;
-	  if (jobs[js.j_lastj])
+	  if (jobs[js.j_lastj] || js.j_lastj == old)	/* needed if old == js.j_jobslots */
 	    break;
 	  js.j_lastj--;
 	}
@@ -963,7 +968,11 @@ compact_jobs_list (flags)
   reap_dead_jobs ();
   realloc_jobs_list ();
 
-  return (js.j_lastj);
+#ifdef DEBUG
+  itrace("compact_jobs_list: returning %d", (js.j_lastj || jobs[js.j_lastj]) ? js.j_lastj + 1 : 0);
+#endif
+
+  return ((js.j_lastj || jobs[js.j_lastj]) ? js.j_lastj + 1 : 0);
 }
 
 /* Delete the job at INDEX from the job list.  Must be called
@@ -984,8 +993,6 @@ delete_job (job_index, dflags)
   temp = jobs[job_index];
   if (temp == 0)
     return;
-  if (job_index == js.j_current || job_index == js.j_previous)
-    reset_current ();
 
   if ((dflags & DEL_NOBGPID) == 0)
     {
@@ -1028,6 +1035,9 @@ delete_job (job_index, dflags)
     js.j_firstj = js.j_lastj = 0;
   else if (jobs[js.j_firstj] == 0 || jobs[js.j_lastj] == 0)
     reset_job_indices ();
+
+  if (job_index == js.j_current || job_index == js.j_previous)
+    reset_current ();
 }
 
 /* Must be called with SIGCHLD blocked. */
@@ -2210,6 +2220,26 @@ process_exit_status (status)
     return (EXECUTION_SUCCESS);
 }
 
+static WAIT
+job_signal_status (job)
+     int job;
+{
+  register PROCESS *p;
+  WAIT s;
+
+  p = jobs[job]->pipe;
+  do
+    {
+      s = p->status;
+      if (WIFSIGNALED(s) || WIFSTOPPED(s))
+	break;
+      p = p->next;
+    }
+  while (p != jobs[job]->pipe);
+
+  return s;
+}
+  
 /* Return the exit status of the last process in the pipeline for job JOB.
    This is the exit status of the entire job. */
 static WAIT
@@ -2292,11 +2322,14 @@ wait_for (pid)
      to finish.  We don't want the shell to exit if an interrupt is
      received, only if one of the jobs run is killed via SIGINT.  If
      job control is not set, the job will be run in the same pgrp as
-     the shell, and the shell will see any signals the job gets. */
+     the shell, and the shell will see any signals the job gets.  In
+     fact, we want this set every time the waiting shell and the waited-
+     for process are in the same process group, including command
+     substitution. */
 
   /* This is possibly a race condition -- should it go in stop_pipeline? */
   wait_sigint_received = 0;
-  if (job_control == 0)
+  if (job_control == 0 || (subshell_environment&SUBSHELL_COMSUB))
     {
       old_sigint_handler = set_signal_handler (SIGINT, wait_sigint_handler);
       if (old_sigint_handler == SIG_IGN)
@@ -2442,15 +2475,7 @@ if (job == NO_JOB)
 	     to a signal.  We might want to change this later to just check
 	     the last process in the pipeline.  If no process exits due to a
 	     signal, S is left as the status of the last job in the pipeline. */
-	  p = jobs[job]->pipe;
+	  s = job_signal_status (job);
-	  do
-	    {
-	      s = p->status;
-	      if (WIFSIGNALED(s) || WIFSTOPPED(s))
-		break;
-	      p = p->next;
-	    }
-	  while (p != jobs[job]->pipe);
 
 	  if (WIFSIGNALED (s) || WIFSTOPPED (s))
 	    {
@@ -2484,6 +2509,24 @@ if (job == NO_JOB)
 		}
 	    }
 	}
+      else if ((subshell_environment & SUBSHELL_COMSUB) && wait_sigint_received)
+	{
+	  /* If waiting for a job in a subshell started to do command
+	     substitution, simulate getting and being killed by the SIGINT to
+	     pass the status back to our parent. */
+	  s = job_signal_status (job);
+	
+	  if (WIFSIGNALED (s) && WTERMSIG (s) == SIGINT && signal_is_trapped (SIGINT) == 0)
+	    {
+	      UNBLOCK_CHILD (oset);
+	      restore_sigint_handler ();
+	      old_sigint_handler = set_signal_handler (SIGINT, SIG_DFL);
+	      if (old_sigint_handler == SIG_IGN)
+		restore_sigint_handler ();
+	      else
+		kill (getpid (), SIGINT);
+	    }
+	}
 
       /* Moved here from set_job_status_and_cleanup, which is in the SIGCHLD
          signal handler path */

lib/readline/complete.c

@@ -428,7 +428,7 @@ get_y_or_n (for_pager)
 	return (1);
       if (c == 'n' || c == 'N' || c == RUBOUT)
 	return (0);
-      if (c == ABORT_CHAR)
+      if (c == ABORT_CHAR || c < 0)
 	_rl_abort_internal ();
       if (for_pager && (c == NEWLINE || c == RETURN))
 	return (2);

lib/readline/display.c

@@ -391,14 +391,14 @@ rl_expand_prompt (prompt)
       t = ++p;
       local_prompt = expand_prompt (p, &prompt_visible_length,
 				       &prompt_last_invisible,
-				       (int *)NULL,
+				       &prompt_invis_chars_first_line,
 				       &prompt_physical_chars);
       c = *t; *t = '\0';
       /* The portion of the prompt string up to and including the
 	 final newline is now null-terminated. */
       local_prompt_prefix = expand_prompt (prompt, &prompt_prefix_length,
 						   (int *)NULL,
-						   &prompt_invis_chars_first_line,
+						   (int *)NULL,
 						   (int *)NULL);
       *t = c;
       local_prompt_len = local_prompt ? strlen (local_prompt) : 0;
@@ -561,6 +561,17 @@ rl_redisplay ()
       wrap_offset = prompt_invis_chars_first_line = 0;
     }
 
+#if defined (HANDLE_MULTIBYTE)
+#define CHECK_INV_LBREAKS() \
+      do { \
+	if (newlines >= (inv_lbsize - 2)) \
+	  { \
+	    inv_lbsize *= 2; \
+	    inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
+	    _rl_wrapped_line = (int *)xrealloc (_rl_wrapped_line, inv_lbsize * sizeof (int)); \
+	  } \
+      } while (0)
+#else
 #define CHECK_INV_LBREAKS() \
       do { \
 	if (newlines >= (inv_lbsize - 2)) \
@@ -569,6 +580,7 @@ rl_redisplay ()
 	    inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
 	  } \
       } while (0)
+#endif /* HANDLE_MULTIBYTE */
 
 #if defined (HANDLE_MULTIBYTE)	  
 #define CHECK_LPOS() \
@@ -898,6 +910,10 @@ rl_redisplay ()
 	     second and subsequent lines start at inv_lbreaks[N], offset by
 	     OFFSET (which has already been calculated above).  */
 
+#define INVIS_FIRST()	(prompt_physical_chars > _rl_screenwidth ? prompt_invis_chars_first_line : wrap_offset)
+#define WRAP_OFFSET(line, offset)  ((line == 0) \
+					? (offset ? INVIS_FIRST() : 0) \
+					: ((line == prompt_last_screen_line) ? wrap_offset-prompt_invis_chars_first_line : 0))
 #define W_OFFSET(line, offset) ((line) == 0 ? offset : 0)
 #define VIS_LLEN(l)	((l) > _rl_vis_botlin ? 0 : (vis_lbreaks[l+1] - vis_lbreaks[l]))
 #define INV_LLEN(l)	(inv_lbreaks[l+1] - inv_lbreaks[l])
@@ -932,7 +948,13 @@ rl_redisplay ()
 		  _rl_last_c_pos != o_cpos &&
 		  _rl_last_c_pos > wrap_offset &&
 		  o_cpos < prompt_last_invisible)
-		_rl_last_c_pos -= wrap_offset;
+		_rl_last_c_pos -= prompt_invis_chars_first_line;	/* XXX - was wrap_offset */
+	      else if (linenum == prompt_last_screen_line && prompt_physical_chars > _rl_screenwidth &&
+			(MB_CUR_MAX > 1 && rl_byte_oriented == 0) &&
+			cpos_adjusted == 0 &&
+			_rl_last_c_pos != o_cpos &&
+			_rl_last_c_pos > (prompt_last_invisible - _rl_screenwidth - prompt_invis_chars_first_line))
+		_rl_last_c_pos -= (wrap_offset-prompt_invis_chars_first_line);
 		  
 	      /* If this is the line with the prompt, we might need to
 		 compensate for invisible characters in the new line. Do
@@ -1036,7 +1058,7 @@ rl_redisplay ()
 		tx = _rl_col_width (&visible_line[pos], 0, nleft) - visible_wrap_offset;
 	      else
 		tx = nleft;
-	      if (_rl_last_c_pos > tx)
+	      if (tx >= 0 && _rl_last_c_pos > tx)
 		{
 	          _rl_backspace (_rl_last_c_pos - tx);	/* XXX */
 	          _rl_last_c_pos = tx;
@@ -1192,7 +1214,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
      int current_line, omax, nmax, inv_botlin;
 {
   register char *ofd, *ols, *oe, *nfd, *nls, *ne;
-  int temp, lendiff, wsatend, od, nd;
+  int temp, lendiff, wsatend, od, nd, twidth, o_cpos;
   int current_invis_chars;
   int col_lendiff, col_temp;
 #if defined (HANDLE_MULTIBYTE)
@@ -1208,7 +1230,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
   if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
     temp = _rl_last_c_pos;
   else
-    temp = _rl_last_c_pos - W_OFFSET(_rl_last_v_pos, visible_wrap_offset);
+    temp = _rl_last_c_pos - WRAP_OFFSET (_rl_last_v_pos, visible_wrap_offset);
   if (temp == _rl_screenwidth && _rl_term_autowrap && !_rl_horizontal_scroll_mode
 	&& _rl_last_v_pos == current_line - 1)
     {
@@ -1453,6 +1475,8 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	_rl_last_c_pos = lendiff;
     }
 
+  o_cpos = _rl_last_c_pos;
+
   /* When this function returns, _rl_last_c_pos is correct, and an absolute
      cursor postion in multibyte mode, but a buffer index when not in a
      multibyte locale. */
@@ -1462,7 +1486,9 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
   /* We need to indicate that the cursor position is correct in the presence of
      invisible characters in the prompt string.  Let's see if setting this when
      we make sure we're at the end of the drawn prompt string works. */
-  if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 && _rl_last_c_pos == prompt_physical_chars)
+  if (current_line == 0 && MB_CUR_MAX > 1 && rl_byte_oriented == 0 && 
+      (_rl_last_c_pos > 0 || o_cpos > 0) &&
+      _rl_last_c_pos == prompt_physical_chars)
     cpos_adjusted = 1;
 #endif
 #endif
@@ -1506,11 +1532,31 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
     {
       /* Non-zero if we're increasing the number of lines. */
       int gl = current_line >= _rl_vis_botlin && inv_botlin > _rl_vis_botlin;
+      /* If col_lendiff is > 0, implying that the new string takes up more
+	 screen real estate than the old, but lendiff is < 0, meaning that it
+	 takes fewer bytes, we need to just output the characters starting
+	 from the first difference.  These will overwrite what is on the
+	 display, so there's no reason to do a smart update.  This can really
+	 only happen in a multibyte environment. */
+      if (lendiff < 0)
+	{
+	  _rl_output_some_chars (nfd, temp);
+	  _rl_last_c_pos += _rl_col_width (nfd, 0, temp);
+	  /* If nfd begins before any invisible characters in the prompt,
+	     adjust _rl_last_c_pos to account for wrap_offset and set
+	     cpos_adjusted to let the caller know. */
+	  if (current_line == 0 && wrap_offset && ((nfd - new) <= prompt_last_invisible))
+	    {
+	      _rl_last_c_pos -= wrap_offset;
+	      cpos_adjusted = 1;
+	    }
+	  return;
+	}
       /* Sometimes it is cheaper to print the characters rather than
 	 use the terminal's capabilities.  If we're growing the number
 	 of lines, make sure we actually cause the new line to wrap
 	 around on auto-wrapping terminals. */
-      if (_rl_terminal_can_insert && ((2 * col_temp) >= col_lendiff || _rl_term_IC) && (!_rl_term_autowrap || !gl))
+      else if (_rl_terminal_can_insert && ((2 * col_temp) >= col_lendiff || _rl_term_IC) && (!_rl_term_autowrap || !gl))
 	{
 	  /* If lendiff > prompt_visible_length and _rl_last_c_pos == 0 and
 	     _rl_horizontal_scroll_mode == 1, inserting the characters with
@@ -1533,11 +1579,16 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	    }
 	  else
 	    {
-	      /* We have horizontal scrolling and we are not inserting at
-		 the end.  We have invisible characters in this line.  This
-		 is a dumb update. */
 	      _rl_output_some_chars (nfd, temp);
 	      _rl_last_c_pos += col_temp;
+	      /* If nfd begins before any invisible characters in the prompt,
+		 adjust _rl_last_c_pos to account for wrap_offset and set
+		 cpos_adjusted to let the caller know. */
+	      if (current_line == 0 && wrap_offset && ((nfd - new) <= prompt_last_invisible))
+		{
+		  _rl_last_c_pos -= wrap_offset;
+		  cpos_adjusted = 1;
+		}
 	      return;
 	    }
 	  /* Copy (new) chars to screen from first diff to last match. */
@@ -1545,15 +1596,15 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	  if ((temp - lendiff) > 0)
 	    {
 	      _rl_output_some_chars (nfd + lendiff, temp - lendiff);
-#if 1
 	     /* XXX -- this bears closer inspection.  Fixes a redisplay bug
 		reported against bash-3.0-alpha by Andreas Schwab involving
 		multibyte characters and prompt strings with invisible
 		characters, but was previously disabled. */
-	      _rl_last_c_pos += _rl_col_width (nfd+lendiff, 0, temp-col_lendiff);
+	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
-#else
+		twidth = _rl_col_width (nfd+lendiff, 0, temp-col_lendiff);
-	      _rl_last_c_pos += _rl_col_width (nfd+lendiff, 0, temp-lendiff);
+	      else
-#endif
+		twidth = temp - lendiff;
+	      _rl_last_c_pos += twidth;
 	    }
 	}
       else
@@ -1586,8 +1637,22 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	  temp = nls - nfd;
 	  if (temp > 0)
 	    {
+	      /* If nfd begins at the prompt, or before the invisible
+		 characters in the prompt, we need to adjust _rl_last_c_pos
+		 in a multibyte locale to account for the wrap offset and
+		 set cpos_adjusted accordingly. */
 	      _rl_output_some_chars (nfd, temp);
-	      _rl_last_c_pos += _rl_col_width (nfd, 0, temp);;
+	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+		{
+                  _rl_last_c_pos += _rl_col_width (nfd, 0, temp);
+                  if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
+		    {
+		      _rl_last_c_pos -= wrap_offset;
+		      cpos_adjusted = 1;
+		    }
+		}
+              else
+                _rl_last_c_pos += temp;
 	    }
 	}
       /* Otherwise, print over the existing material. */
@@ -1595,8 +1660,20 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	{
 	  if (temp > 0)
 	    {
+	      /* If nfd begins at the prompt, or before the invisible
+		 characters in the prompt, we need to adjust _rl_last_c_pos
+		 in a multibyte locale to account for the wrap offset and
+		 set cpos_adjusted accordingly. */
 	      _rl_output_some_chars (nfd, temp);
 	      _rl_last_c_pos += col_temp;		/* XXX */
+	      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+		{
+		  if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
+		    {
+		      _rl_last_c_pos -= wrap_offset;
+		      cpos_adjusted = 1;
+		    }
+		}
 	    }
 	  lendiff = (oe - old) - (ne - new);
 	  if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
@@ -1721,7 +1798,7 @@ _rl_move_cursor_relative (new, data)
   int woff;			/* number of invisible chars on current line */
   int cpos, dpos;		/* current and desired cursor positions */
 
-  woff = W_OFFSET (_rl_last_v_pos, wrap_offset);
+  woff = WRAP_OFFSET (_rl_last_v_pos, wrap_offset);
   cpos = _rl_last_c_pos;
 #if defined (HANDLE_MULTIBYTE)
   /* If we have multibyte characters, NEW is indexed by the buffer point in
@@ -1732,7 +1809,14 @@ _rl_move_cursor_relative (new, data)
   if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
     {
       dpos = _rl_col_width (data, 0, new);
-      if (dpos > prompt_last_invisible)		/* XXX - don't use woff here */
+      /* Use NEW when comparing against the last invisible character in the
+	 prompt string, since they're both buffer indices and DPOS is a
+	 desired display position. */
+      if ((new > prompt_last_invisible) ||		/* XXX - don't use woff here */
+	  (prompt_physical_chars > _rl_screenwidth &&
+	   _rl_last_v_pos == prompt_last_screen_line &&
+	   wrap_offset != woff &&
+	   new > (prompt_last_invisible-_rl_screenwidth-wrap_offset)))
 	{
 	  dpos -= woff;
 	  /* Since this will be assigned to _rl_last_c_pos at the end (more
@@ -2380,6 +2464,8 @@ _rl_col_width (str, start, end)
 
   if (end <= start)
     return 0;
+  if (MB_CUR_MAX == 1 || rl_byte_oriented)
+    return (end - start);
 
   memset (&ps, 0, sizeof (mbstate_t));
 

lib/readline/input.c

@@ -133,8 +133,11 @@ rl_get_char (key)
     return (0);
 
   *key = ibuffer[pop_index++];
-
+#if 0
   if (pop_index >= ibuffer_len)
+#else
+  if (pop_index > ibuffer_len)
+#endif
     pop_index = 0;
 
   return (1);
@@ -151,7 +154,7 @@ _rl_unget_char (key)
     {
       pop_index--;
       if (pop_index < 0)
-	pop_index = ibuffer_len - 1;
+	pop_index = ibuffer_len;
       ibuffer[pop_index] = key;
       return (1);
     }
@@ -250,7 +253,8 @@ rl_gather_tyi ()
       while (chars_avail--)
 	{
 	  k = (*rl_getc_function) (rl_instream);
-	  rl_stuff_char (k);
+	  if (rl_stuff_char (k) == 0)
+	    break;			/* some problem; no more room */
 	  if (k == NEWLINE || k == RETURN)
 	    break;
 	}
@@ -373,7 +377,11 @@ rl_stuff_char (key)
       RL_SETSTATE (RL_STATE_INPUTPENDING);
     }
   ibuffer[push_index++] = key;
+#if 0
   if (push_index >= ibuffer_len)
+#else
+  if (push_index > ibuffer_len)
+#endif
     push_index = 0;
 
   return 1;
@@ -513,7 +521,7 @@ _rl_read_mbchar (mbchar, size)
      char *mbchar;
      int size;
 {
-  int mb_len = 0;
+  int mb_len, c;
   size_t mbchar_bytes_length;
   wchar_t wc;
   mbstate_t ps, ps_back;
@@ -521,12 +529,18 @@ _rl_read_mbchar (mbchar, size)
   memset(&ps, 0, sizeof (mbstate_t));
   memset(&ps_back, 0, sizeof (mbstate_t));
 
+  mb_len = 0;  
   while (mb_len < size)
     {
       RL_SETSTATE(RL_STATE_MOREINPUT);
-      mbchar[mb_len++] = rl_read_key ();
+      c = rl_read_key ();
       RL_UNSETSTATE(RL_STATE_MOREINPUT);
 
+      if (c < 0)
+	break;
+
+      mbchar[mb_len++] = c;
+
       mbchar_bytes_length = mbrtowc (&wc, mbchar, mb_len, &ps);
       if (mbchar_bytes_length == (size_t)(-1))
 	break;		/* invalid byte sequence for the current locale */
@@ -564,7 +578,7 @@ _rl_read_mbstring (first, mb, mlen)
 
   c = first;
   memset (mb, 0, mlen);
-  for (i = 0; i < mlen; i++)
+  for (i = 0; c >= 0 && i < mlen; i++)
     {
       mb[i] = (char)c;
       memset (&ps, 0, sizeof (mbstate_t));

lib/readline/isearch.c

@@ -328,7 +328,14 @@ _rl_isearch_dispatch (cxt, c)
 
   f = (rl_command_func_t *)NULL;
 
- /* Translate the keys we do something with to opcodes. */
+  if (c < 0)
+    {
+      cxt->sflags |= SF_FAILED;
+      cxt->history_pos = cxt->last_found_line;
+      return -1;
+    }
+
+  /* Translate the keys we do something with to opcodes. */
   if (c >= 0 && _rl_keymap[c].type == ISFUNC)
     {
       f = _rl_keymap[c].function;

lib/readline/misc.c

@@ -146,6 +146,8 @@ _rl_arg_dispatch (cxt, c)
 	  rl_restore_prompt ();
 	  rl_clear_message ();
 	  RL_UNSETSTATE(RL_STATE_NUMERICARG);
+	  if (key < 0)
+	    return -1;
 	  return (_rl_dispatch (key, _rl_keymap));
 	}
     }

lib/readline/readline.c

@@ -645,6 +645,11 @@ _rl_dispatch_callback (cxt)
   if ((cxt->flags & KSEQ_DISPATCHED) == 0)
     {
       nkey = _rl_subseq_getchar (cxt->okey);
+      if (nkey < 0)
+	{
+	  _rl_abort_internal ();
+	  return -1;
+	}
       r = _rl_dispatch_subseq (nkey, cxt->dmap, cxt->subseq_arg);
       cxt->flags |= KSEQ_DISPATCHED;
     }

lib/readline/text.c

@@ -857,6 +857,9 @@ _rl_insert_next (count)
   c = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
 
+  if (c < 0)
+    return -1;
+
 #if defined (HANDLE_SIGNALS)
   if (RL_ISSTATE (RL_STATE_CALLBACK) == 0)
     _rl_restore_tty_signals ();
@@ -1520,6 +1523,9 @@ _rl_char_search (count, fdir, bdir)
 
   mb_len = _rl_read_mbchar (mbchar, MB_LEN_MAX);
 
+  if (mb_len <= 0)
+    return -1;
+
   if (count < 0)
     return (_rl_char_search_internal (-count, bdir, mbchar, mb_len));
   else
@@ -1536,6 +1542,9 @@ _rl_char_search (count, fdir, bdir)
   c = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
 
+  if (c < 0)
+    return -1;
+
   if (count < 0)
     return (_rl_char_search_internal (-count, bdir, c));
   else

lib/readline/vi_mode.c

@@ -886,6 +886,13 @@ rl_vi_domove (key, nextkey)
   RL_SETSTATE(RL_STATE_MOREINPUT);
   c = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
+
+  if (c < 0)
+    {
+      *nextkey = 0;
+      return -1;
+    }
+
   *nextkey = c;
 
   if (!member (c, vi_motion))
@@ -902,6 +909,11 @@ rl_vi_domove (key, nextkey)
 	  RL_SETSTATE(RL_STATE_MOREINPUT);
 	  c = rl_read_key ();	/* real command */
 	  RL_UNSETSTATE(RL_STATE_MOREINPUT);
+	  if (c < 0)
+	    {
+	      *nextkey = 0;
+	      return -1;
+	    }
 	  *nextkey = c;
 	}
       else if (key == c && (key == 'd' || key == 'y' || key == 'c'))
@@ -1224,14 +1236,22 @@ static int
 _rl_vi_callback_char_search (data)
      _rl_callback_generic_arg *data;
 {
+  int c;
 #if defined (HANDLE_MULTIBYTE)
-  _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
+  c = _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
 #else
   RL_SETSTATE(RL_STATE_MOREINPUT);
-  _rl_vi_last_search_char = rl_read_key ();
+  c = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
 #endif
 
+  if (c <= 0)
+    return -1;
+
+#if !defined (HANDLE_MULTIBYTE)
+  _rl_vi_last_search_char = c;
+#endif
+
   _rl_callback_func = 0;
   _rl_want_redisplay = 1;
 
@@ -1247,6 +1267,7 @@ int
 rl_vi_char_search (count, key)
      int count, key;
 {
+  int c;
 #if defined (HANDLE_MULTIBYTE)
   static char *target;
   static int tlen;
@@ -1293,11 +1314,17 @@ rl_vi_char_search (count, key)
       else
 	{
 #if defined (HANDLE_MULTIBYTE)
-	  _rl_vi_last_search_mblen = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
+	  c = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
+	  if (c <= 0)
+	    return -1;
+	  _rl_vi_last_search_mblen = c;
 #else
 	  RL_SETSTATE(RL_STATE_MOREINPUT);
-	  _rl_vi_last_search_char = rl_read_key ();
+	  c = rl_read_key ();
 	  RL_UNSETSTATE(RL_STATE_MOREINPUT);
+	  if (c < 0)
+	    return -1;
+	  _rl_vi_last_search_char = c;
 #endif
 	}
     }
@@ -1467,6 +1494,9 @@ _rl_vi_callback_getchar (mb, mlen)
   c = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
 
+  if (c < 0)
+    return -1;
+
 #if defined (HANDLE_MULTIBYTE)
   if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
     c = _rl_read_mbstring (c, mb, mlen);
@@ -1485,6 +1515,9 @@ _rl_vi_callback_change_char (data)
 
   _rl_vi_last_replacement = c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
 
+  if (c < 0)
+    return -1;
+
   _rl_callback_func = 0;
   _rl_want_redisplay = 1;
 
@@ -1516,6 +1549,9 @@ rl_vi_change_char (count, key)
   else
     _rl_vi_last_replacement = c = _rl_vi_callback_getchar (mb, MB_LEN_MAX);
 
+  if (c < 0)
+    return -1;
+
   return (_rl_vi_change_char (count, c, mb));
 }
 
@@ -1650,7 +1686,7 @@ _rl_vi_set_mark ()
   ch = rl_read_key ();
   RL_UNSETSTATE(RL_STATE_MOREINPUT);
 
-  if (ch < 'a' || ch > 'z')
+  if (ch < 0 || ch < 'a' || ch > 'z')	/* make test against 0 explicit */
     {
       rl_ding ();
       return -1;
@@ -1702,7 +1738,7 @@ _rl_vi_goto_mark ()
       rl_point = rl_mark;
       return 0;
     }
-  else if (ch < 'a' || ch > 'z')
+  else if (ch < 0 || ch < 'a' || ch > 'z')	/* make test against 0 explicit */
     {
       rl_ding ();
       return -1;

lib/sh/getcwd.c

@@ -251,19 +251,21 @@ getcwd (buf, size)
 
   {
     size_t len = pathbuf + pathsize - pathp;
-    if (buf == NULL)
+    if (buf == NULL && size <= 0)
-      {
+      size = len;
-	if (len < (size_t) size)
+
-	  len = size;
+    if ((size_t) size < len)
-	buf = (char *) malloc (len);
-	if (buf == NULL)
-	  goto lose2;
-      }
-    else if ((size_t) size < len)
       {
 	errno = ERANGE;
 	goto lose2;
       }
+    if (buf == NULL)
+      {
+	buf = (char *) malloc (size);
+	if (buf == NULL)
+	  goto lose2;
+      }
+
     (void) memcpy((PTR_T) buf, (PTR_T) pathp, len);
   }
 

lib/sh/snprintf.c

@@ -471,6 +471,8 @@ pow_10(n)
 	  10^x ~= r
  * log_10(200) = 2;
  * log_10(250) = 2;
+ *
+ * NOTE: do not call this with r == 0 -- an infinite loop results.
  */
 static int
 log_10(r)
@@ -576,8 +578,11 @@ numtoa(number, base, precision, fract)
     { 
       integral_part[0] = '0';
       integral_part[1] = '\0';
-      fraction_part[0] = '0';
+      /* The fractional part has to take the precision into account */
-      fraction_part[1] = '\0';
+      for (ch = 0; ch < precision-1; ch++)
+ 	fraction_part[ch] = '0';
+      fraction_part[ch] = '0';
+      fraction_part[ch+1] = '\0';
       if (fract)
 	*fract = fraction_part;
       return integral_part;
@@ -663,7 +668,8 @@ number(p, d, base)
     p->flags &= ~PF_ZEROPAD;
 
   sd = d;	/* signed for ' ' padding in base 10 */
-  flags = (*p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0;
+  flags = 0;
+  flags = (*p->pf == 'x' || *p->pf == 'X' || *p->pf == 'o' || *p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0;
   if (*p->pf == 'X')
     flags |= FL_HEXUPPER;
 
@@ -733,7 +739,7 @@ lnumber(p, d, base)
     p->flags &= ~PF_ZEROPAD;
 
   sd = d;	/* signed for ' ' padding in base 10 */
-  flags = (*p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0;
+  flags = (*p->pf == 'x' || *p->pf == 'X' || *p->pf == 'o' || *p->pf == 'u' || *p->pf == 'U') ? FL_UNSIGNED : 0;
   if (*p->pf == 'X')
     flags |= FL_HEXUPPER;
 
@@ -805,6 +811,7 @@ pointer(p, d)
       PUT_CHAR(*tmp, p);
       tmp++;
     }
+
   PAD_LEFT(p);
 }
 
@@ -972,11 +979,21 @@ floating(p, d)
   if ((p->flags & PF_THOUSANDS) && grouping && (t = groupnum (tmp)))
     tmp = t;
 
+  if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0)
+    {
+      /* smash the trailing zeros unless altform */
+      for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--)
+        tmp2[i] = '\0'; 
+      if (tmp2[0] == '\0')
+	p->precision = 0;
+    }
+
   /* calculate the padding. 1 for the dot */
   p->width = p->width -
 	    ((d > 0. && p->justify == RIGHT) ? 1:0) -
 	    ((p->flags & PF_SPACE) ? 1:0) -
-	    strlen(tmp) - p->precision - 1;
+	    strlen(tmp) - p->precision -
+	    ((p->precision != 0 || (p->flags & PF_ALTFORM)) ? 1 : 0);	/* radix char */
   PAD_RIGHT(p);  
   PUT_PLUS(d, p, 0.);
   PUT_SPACE(d, p, 0.);
@@ -991,11 +1008,6 @@ floating(p, d)
   if (p->precision != 0 || (p->flags & PF_ALTFORM))
     PUT_CHAR(decpoint, p);  /* put the '.' */
 
-  if ((*p->pf == 'g' || *p->pf == 'G') && (p->flags & PF_ALTFORM) == 0)
-    /* smash the trailing zeros unless altform */
-    for (i = strlen(tmp2) - 1; i >= 0 && tmp2[i] == '0'; i--)
-      tmp2[i] = '\0'; 
-
   for (; *tmp2; tmp2++)
     PUT_CHAR(*tmp2, p); /* the fraction */
   
@@ -1011,14 +1023,19 @@ exponent(p, d)
   char *tmp, *tmp2;
   int j, i;
 
-  if (chkinfnan(p, d, 1) || chkinfnan(p, d, 2))
+  if (d != 0 && (chkinfnan(p, d, 1) || chkinfnan(p, d, 2)))
     return;	/* already printed nan or inf */
 
   GETLOCALEDATA(decpoint, thoussep, grouping);
   DEF_PREC(p);
-  j = log_10(d);
+  if (d == 0.)
-  d = d / pow_10(j);  /* get the Mantissa */
+    j = 0;
-  d = ROUND(d, p);		  
+  else
+    {
+      j = log_10(d);
+      d = d / pow_10(j);  /* get the Mantissa */
+      d = ROUND(d, p);		  
+    }
   tmp = dtoa(d, p->precision, &tmp2);
 
   /* 1 for unit, 1 for the '.', 1 for 'e|E',
@@ -1076,6 +1093,7 @@ exponent(p, d)
        PUT_CHAR(*tmp, p);
        tmp++;
      }
+
    PAD_LEFT(p);
 }
 #endif
@@ -1358,7 +1376,7 @@ conv_break:
 		STAR_ARGS(data);
 		DEF_PREC(data);
 		d = GETDOUBLE(data);
-		i = log_10(d);
+		i = (d != 0.) ? log_10(d) : -1;
 		/*
 		 * for '%g|%G' ANSI: use f if exponent
 		 * is in the range or [-4,p] exclusively

parse.y

@@ -1029,6 +1029,7 @@ timespec:	TIME
 #define PST_CMDTOKEN	0x1000		/* command token OK - unused */
 #define PST_COMPASSIGN	0x2000		/* parsing x=(...) compound assignment */
 #define PST_ASSIGNOK	0x4000		/* assignment statement ok in this context */
+#define PST_REGEXP	0x8000		/* parsing an ERE/BRE as a single word */
 
 /* Initial size to allocate for tokens, and the
    amount to grow them by. */
@@ -2591,6 +2592,9 @@ read_token (command)
       return (character);
     }
 
+  if (parser_state & PST_REGEXP)
+    goto tokword;
+
   /* Shell meta-characters. */
   if MBTEST(shellmeta (character) && ((parser_state & PST_DBLPAREN) == 0))
     {
@@ -2698,6 +2702,7 @@ read_token (command)
   if MBTEST(character == '-' && (last_read_token == LESS_AND || last_read_token == GREATER_AND))
     return (character);
 
+tokword:
   /* Okay, if we got this far, we have to read a word.  Read one,
      and then check it against the known ones. */
   result = read_token_word (character);
@@ -2735,7 +2740,7 @@ parse_matched_pair (qc, open, close, lenp, flags)
 /* itrace("parse_matched_pair: open = %c close = %c", open, close); */
   count = 1;
   pass_next_character = backq_backslash = was_dollar = in_comment = 0;
-  check_comment = (flags & P_COMMAND) && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0;
+  check_comment = (flags & P_COMMAND) && qc != '`' && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0;
 
   /* RFLAGS is the set of flags we want to pass to recursive calls. */
   rflags = (qc == '"') ? P_DQUOTE : (flags & P_DQUOTE);
@@ -3202,8 +3207,11 @@ cond_term ()
       if (tok == WORD && test_binop (yylval.word->word))
 	op = yylval.word;
 #if defined (COND_REGEXP)
-      else if (tok == WORD && STREQ (yylval.word->word,"=~"))
+      else if (tok == WORD && STREQ (yylval.word->word, "=~"))
-	op = yylval.word;
+	{
+	  op = yylval.word;
+	  parser_state |= PST_REGEXP;
+	}
 #endif
       else if (tok == '<' || tok == '>')
 	op = make_word_from_token (tok);  /* ( */
@@ -3234,6 +3242,7 @@ cond_term ()
 
       /* rhs */
       tok = read_token (READ);
+      parser_state &= ~PST_REGEXP;
       if (tok == WORD)
 	{
 	  tright = make_cond_node (COND_TERM, yylval.word, (COND_COM *)NULL, (COND_COM *)NULL);
@@ -3367,7 +3376,7 @@ read_token_word (character)
       if (pass_next_character)
 	{
 	  pass_next_character = 0;
-	  goto got_character;
+	  goto got_escaped_character;
 	}
 
       cd = current_delimiter (dstack);
@@ -3419,9 +3428,34 @@ read_token_word (character)
 	  goto next_character;
 	}
 
+#ifdef COND_REGEXP
+      /* When parsing a regexp as a single word inside a conditional command,
+	 we need to special-case characters special to both the shell and
+	 regular expressions.  Right now, that is only '(' and '|'. */ /*)*/
+      if MBTEST((parser_state & PST_REGEXP) && (character == '(' || character == '|'))		/*)*/
+        {
+          if (character == '|')
+            goto got_character;
+
+	  push_delimiter (dstack, character);
+	  ttok = parse_matched_pair (cd, '(', ')', &ttoklen, 0);
+	  pop_delimiter (dstack);
+	  if (ttok == &matched_pair_error)
+	    return -1;		/* Bail immediately. */
+	  RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
+				  token_buffer_size, TOKEN_DEFAULT_GROW_SIZE);
+	  token[token_index++] = character;
+	  strcpy (token + token_index, ttok);
+	  token_index += ttoklen;
+	  FREE (ttok);
+	  dollar_present = all_digit_token = 0;
+	  goto next_character;
+        }
+#endif /* COND_REGEXP */
+
 #ifdef EXTENDED_GLOB
       /* Parse a ksh-style extended pattern matching specification. */
-      if (extended_glob && PATTERN_CHAR (character))
+      if MBTEST(extended_glob && PATTERN_CHAR (character))
 	{
 	  peek_char = shell_getc (1);
 	  if MBTEST(peek_char == '(')		/* ) */
@@ -3616,12 +3650,14 @@ read_token_word (character)
 
     got_character:
 
-      all_digit_token &= DIGIT (character);
-      dollar_present |= character == '$';
-
       if (character == CTLESC || character == CTLNUL)
 	token[token_index++] = CTLESC;
 
+    got_escaped_character:
+
+      all_digit_token &= DIGIT (character);
+      dollar_present |= character == '$';
+
       token[token_index++] = character;
 
       RESIZE_MALLOCED_BUFFER (token, token_index, 1, token_buffer_size,
@@ -4330,7 +4366,7 @@ not_escape:
   if (promptvars || posixly_correct)
     {
       last_exit_value = last_command_exit_value;
-      list = expand_prompt_string (result, Q_DOUBLE_QUOTES);
+      list = expand_prompt_string (result, Q_DOUBLE_QUOTES, 0);
       free (result);
       result = string_list (list);
       dispose_words (list);

patchlevel.h

@@ -25,6 +25,6 @@
    regexp `^#define[ 	]*PATCHLEVEL', since that's what support/mkversion.sh
    looks for to find the patch level (for the sccs version string). */
 
-#define PATCHLEVEL 0
+#define PATCHLEVEL 48
 
 #endif /* _PATCHLEVEL_H_ */

pathexp.c

@@ -1,6 +1,6 @@
 /* pathexp.c -- The shell interface to the globbing library. */
 
-/* Copyright (C) 1995-2002 Free Software Foundation, Inc.
+/* Copyright (C) 1995-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -110,6 +110,33 @@ unquoted_glob_pattern_p (string)
   return (0);
 }
 
+/* Return 1 if C is a character that is `special' in a POSIX ERE and needs to
+   be quoted to match itself. */
+static inline int
+ere_char (c)
+     int c;
+{
+  switch (c)
+    {
+    case '.':
+    case '[':
+    case '\\':
+    case '(':
+    case ')':
+    case '*':
+    case '+':
+    case '?':
+    case '{':
+    case '|':
+    case '^':
+    case '$':
+      return 1;
+    default: 
+      return 0;
+    }
+  return (0);
+}
+
 /* PATHNAME can contain characters prefixed by CTLESC; this indicates
    that the character is to be quoted.  We quote it here in the style
    that the glob library recognizes.  If flags includes QGLOB_CVTNULL,
@@ -142,6 +169,8 @@ quote_string_for_globbing (pathname, qflags)
 	{
 	  if ((qflags & QGLOB_FILENAME) && pathname[i+1] == '/')
 	    continue;
+	  if ((qflags & QGLOB_REGEXP) && ere_char (pathname[i+1]) == 0)
+	    continue;
 	  temp[j++] = '\\';
 	  i++;
 	  if (pathname[i] == '\0')

pathexp.h

@@ -1,6 +1,6 @@
 /* pathexp.h -- The shell interface to the globbing library. */
 
-/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -32,6 +32,7 @@ extern char *glob_error_return;
 /* Flag values for quote_string_for_globbing */
 #define QGLOB_CVTNULL	0x01	/* convert QUOTED_NULL strings to '\0' */
 #define QGLOB_FILENAME	0x02	/* do correct quoting for matching filenames */
+#define QGLOB_REGEXP	0x04	/* quote an ERE for regcomp/regexec */
 
 #if defined (EXTENDED_GLOB)
 /* Flags to OR with other flag args to strmatch() to enabled the extended

po/ru.po

@@ -12,7 +12,7 @@ msgstr ""
 "Last-Translator: Evgeniy Dushistov <dushistov@mail.ru>\n"
 "Language-Team: Russian <ru@li.org>\n"
 "MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Type: text/plain; charset=KOI8-R\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=3; plural=(n%10==1 && n%100!=11 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
 

shell.h

@@ -89,6 +89,7 @@ extern int debugging_mode;
 extern int executing, login_shell;
 extern int interactive, interactive_shell;
 extern int startup_state;
+extern int shell_compatibility_level;
 
 /* Structure to pass around that holds a bitmap of file descriptors
    to close, and the size of that structure.  Used in execute_cmd.c. */

sig.c

@@ -350,6 +350,25 @@ reset_terminating_signals ()
 #undef XSIG
 #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
 throw_to_top_level ()

sig.h

@@ -121,6 +121,7 @@ extern sighandler sigint_sighandler __P((int));
 extern void initialize_signals __P((int));
 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__));
 

subst.c

@@ -4,7 +4,7 @@
 /* ``Have a little faith, there's magic in the night.  You ain't a
      beauty, but, hey, you're alright.'' */
 
-/* Copyright (C) 1987-2006 Free Software Foundation, Inc.
+/* Copyright (C) 1987-2007 Free Software Foundation, Inc.
 
    This file is part of GNU Bash, the Bourne Again SHell.
 
@@ -137,7 +137,7 @@ unsigned char ifs_firstc;
 /* Extern functions and variables from different files. */
 extern int last_command_exit_value, last_command_exit_signal;
 extern int subshell_environment;
-extern int subshell_level;
+extern int subshell_level, parse_and_execute_level;
 extern int eof_encountered;
 extern int return_catch_flag, return_catch_value;
 extern pid_t dollar_dollar_pid;
@@ -1278,7 +1278,7 @@ extract_dollar_brace_string (string, sindex, quoted, flags)
     {
       if (no_longjmp_on_fatal_error == 0)
 	{			/* { */
-	  report_error ("bad substitution: no closing `%s' in %s", "}", string);
+	  report_error (_("bad substitution: no closing `%s' in %s"), "}", string);
 	  last_command_exit_value = EXECUTION_FAILURE;
 	  exp_jump_to_top_level (DISCARD);
 	}
@@ -1887,7 +1887,13 @@ string_list_dollar_at (list, quoted)
   sep[1] = '\0';
 #endif
 
+  /* XXX -- why call quote_list if ifs == 0?  we can get away without doing
+     it now that quote_escapes quotes spaces */
+#if 0
   tlist = ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) || (ifs && *ifs == 0))
+#else
+  tlist = (quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES))
+#endif
 		? quote_list (list)
 		: list_quote_escapes (list);
 
@@ -2646,11 +2652,12 @@ remove_backslashes (string)
 
 /* This needs better error handling. */
 /* Expand W for use as an argument to a unary or binary operator in a
-   [[...]] expression.  If SPECIAL is nonzero, this is the rhs argument
+   [[...]] expression.  If SPECIAL is 1, this is the rhs argument
    to the != or == operator, and should be treated as a pattern.  In
-   this case, we quote the string specially for the globbing code.  The
+   this case, we quote the string specially for the globbing code.  If
-   caller is responsible for removing the backslashes if the unquoted
+   SPECIAL is 2, this is an rhs argument for the =~ operator, and should
-   words is needed later. */   
+   be quoted appropriately for regcomp/regexec.  The caller is responsible
+   for removing the backslashes if the unquoted word is needed later. */   
 char *
 cond_expand_word (w, special)
      WORD_DESC *w;
@@ -2658,6 +2665,7 @@ cond_expand_word (w, special)
 {
   char *r, *p;
   WORD_LIST *l;
+  int qflags;
 
   if (w->word == 0 || w->word[0] == '\0')
     return ((char *)NULL);
@@ -2672,8 +2680,11 @@ cond_expand_word (w, special)
 	}
       else
 	{
+	  qflags = QGLOB_CVTNULL;
+	  if (special == 2)
+	    qflags |= QGLOB_REGEXP;
 	  p = string_list (l);
-	  r = quote_string_for_globbing (p, QGLOB_CVTNULL);
+	  r = quote_string_for_globbing (p, qflags);
 	  free (p);
 	}
       dispose_words (l);
@@ -2803,9 +2814,10 @@ expand_string_assignment (string, quoted)
    passed string when an error occurs.  Might want to trap other calls
    to jump_to_top_level here so we don't endlessly loop. */
 WORD_LIST *
-expand_prompt_string (string, quoted)
+expand_prompt_string (string, quoted, wflags)
      char *string;
      int quoted;
+     int wflags;
 {
   WORD_LIST *value;
   WORD_DESC td;
@@ -2813,7 +2825,7 @@ expand_prompt_string (string, quoted)
   if (string == 0 || *string == 0)
     return ((WORD_LIST *)NULL);
 
-  td.flags = 0;
+  td.flags = wflags;
   td.word = savestring (string);
 
   no_longjmp_on_fatal_error = 1;
@@ -2916,7 +2928,12 @@ expand_string (string, quoted)
 
 /* Quote escape characters in string s, but no other characters.  This is
    used to protect CTLESC and CTLNUL in variable values from the rest of
-   the word expansion process after the variable is expanded. */
+   the word expansion process after the variable is expanded.  If IFS is
+   null, we quote spaces as well, just in case we split on spaces later
+   (in the case of unquoted $@, we will eventually attempt to split the
+   entire word on spaces).  Corresponding code exists in dequote_escapes.
+   Even if we don't end up splitting on spaces, quoting spaces is not a
+   problem. */
 char *
 quote_escapes (string)
      char *string;
@@ -2924,17 +2941,19 @@ quote_escapes (string)
   register char *s, *t;
   size_t slen;
   char *result, *send;
+  int quote_spaces;
   DECLARE_MBSTATE; 
 
   slen = strlen (string);
   send = string + slen;
 
+  quote_spaces = (ifs_value && *ifs_value == 0);
   t = result = (char *)xmalloc ((slen * 2) + 1);
   s = string;
 
   while (*s)
     {
-      if (*s == CTLESC || *s == CTLNUL)
+      if (*s == CTLESC || *s == CTLNUL || (quote_spaces && *s == ' '))
 	*t++ = CTLESC;
       COPY_CHAR_P (t, s, send);
     }
@@ -2976,6 +2995,7 @@ dequote_escapes (string)
   register char *s, *t;
   size_t slen;
   char *result, *send;
+  int quote_spaces;
   DECLARE_MBSTATE;
 
   if (string == 0)
@@ -2990,9 +3010,10 @@ dequote_escapes (string)
   if (strchr (string, CTLESC) == 0)
     return (strcpy (result, s));
 
+  quote_spaces = (ifs_value && *ifs_value == 0);
   while (*s)
     {
-      if (*s == CTLESC && (s[1] == CTLESC || s[1] == CTLNUL))
+      if (*s == CTLESC && (s[1] == CTLESC || s[1] == CTLNUL || (quote_spaces && s[1] == ' ')))
 	{
 	  s++;
 	  if (*s == '\0')
@@ -3954,7 +3975,11 @@ parameter_brace_remove_pattern (varname, value, patstr, rtype, quoted)
   if (patspec == RP_LONG_LEFT || patspec == RP_LONG_RIGHT)
     patstr++;
 
-  pattern = getpattern (patstr, quoted, 1);
+  /* Need to pass getpattern newly-allocated memory in case of expansion --
+     the expansion code will free the passed string on an error. */
+  temp1 = savestring (patstr);
+  pattern = getpattern (temp1, quoted, 1);
+  free (temp1);
 
   temp1 = (char *)NULL;		/* shut up gcc */
   switch (vtype)
@@ -4123,6 +4148,12 @@ unlink_fifo_list ()
     nfifo = 0;
 }
 
+int
+fifos_pending ()
+{
+  return nfifo;
+}
+
 static char *
 make_named_pipe ()
 {
@@ -4172,6 +4203,12 @@ add_fifo_list (fd)
   nfds++;
 }
 
+int
+fifos_pending ()
+{
+  return 0;	/* used for cleanup; not needed with /dev/fd */
+}
+
 void
 unlink_fifo_list ()
 {
@@ -4456,7 +4493,15 @@ read_comsub (fd, quoted)
       /* Add the character to ISTRING, possibly after resizing it. */
       RESIZE_MALLOCED_BUFFER (istring, istring_index, 2, istring_size, DEFAULT_ARRAY_SIZE);
 
-      if ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) || c == CTLESC || c == CTLNUL)
+      /* This is essentially quote_string inline */
+      if ((quoted & (Q_HERE_DOCUMENT|Q_DOUBLE_QUOTES)) /* || c == CTLESC || c == CTLNUL */)
+	istring[istring_index++] = CTLESC;
+      /* Escape CTLESC and CTLNUL in the output to protect those characters
+	 from the rest of the word expansions (word splitting and globbing.)
+	 This is essentially quote_escapes inline. */
+      else if (c == CTLESC)
+	istring[istring_index++] = CTLESC;
+      else if (c == CTLNUL || (c == ' ' && (ifs_value && *ifs_value == 0)))
 	istring[istring_index++] = CTLESC;
 
       istring[istring_index++] = c;
@@ -4578,7 +4623,8 @@ command_substitute (string, quoted)
 #if defined (JOB_CONTROL)
   set_sigchld_handler ();
   stop_making_children ();
-  pipeline_pgrp = old_pipeline_pgrp;
+  if (pid != 0)
+    pipeline_pgrp = old_pipeline_pgrp;
 #else
   stop_making_children ();
 #endif /* JOB_CONTROL */
@@ -4665,6 +4711,9 @@ command_substitute (string, quoted)
 
       last_command_exit_value = rc;
       rc = run_exit_trap ();
+#if defined (PROCESS_SUBSTITUTION)
+      unlink_fifo_list ();
+#endif
       exit (rc);
     }
   else
@@ -4763,7 +4812,7 @@ array_length_reference (s)
   else
     t = (ind == 0) ? value_cell (var) : (char *)NULL;
 
-  len = STRLEN (t);
+  len = MB_STRLEN (t);
   return (len);
 }
 #endif /* ARRAY_VARS */
@@ -4860,10 +4909,11 @@ parameter_brace_expand_word (name, var_is_special, quoted)
   char *temp, *tt;
   intmax_t arg_index;
   SHELL_VAR *var;
-  int atype;
+  int atype, rflags;
 
   ret = 0;
   temp = 0;
+  rflags = 0;
 
   /* Handle multiple digit arguments, as in ${11}. */  
   if (legal_number (name, &arg_index))
@@ -4896,6 +4946,8 @@ parameter_brace_expand_word (name, var_is_special, quoted)
  	temp = (*temp && (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT)))
  		  ? quote_string (temp)
  		  : quote_escapes (temp);
+      else if (atype == 1 && temp && QUOTED_NULL (temp) && (quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT)))
+	rflags |= W_HASQUOTEDNULL;
     }
 #endif
   else if (var = find_variable (name))
@@ -4923,6 +4975,7 @@ parameter_brace_expand_word (name, var_is_special, quoted)
     {
       ret = alloc_word_desc ();
       ret->word = temp;
+      ret->flags |= rflags;
     }
   return ret;
 }
@@ -5546,12 +5599,16 @@ parameter_brace_substring (varname, value, substr, quoted)
 	 so verify_substring_values just returns the numbers specified and we
 	 rely on array_subrange to understand how to deal with them). */
       tt = array_subrange (array_cell (v), e1, e2, starsub, quoted);
+#if 0
+      /* array_subrange now calls array_quote_escapes as appropriate, so the
+	 caller no longer needs to. */
       if ((quoted & (Q_DOUBLE_QUOTES|Q_HERE_DOCUMENT)) == 0)
 	{
 	  temp = tt ? quote_escapes (tt) : (char *)NULL;
 	  FREE (tt);
 	}
       else
+#endif
 	temp = tt;
       break;
 #endif
@@ -5707,6 +5764,11 @@ parameter_brace_patsub (varname, value, patsub, quoted)
   vtype &= ~VT_STARSUB;
 
   mflags = 0;
+  if (patsub && *patsub == '/')
+    {
+      mflags |= MATCH_GLOBREP;
+      patsub++;
+    }
 
   /* Malloc this because expand_string_if_necessary or one of the expansion
      functions in its call chain may free it on a substitution error. */
@@ -5741,13 +5803,12 @@ parameter_brace_patsub (varname, value, patsub, quoted)
     }
 
   /* ksh93 doesn't allow the match specifier to be a part of the expanded
-     pattern.  This is an extension. */
+     pattern.  This is an extension.  Make sure we don't anchor the pattern
+     at the beginning or end of the string if we're doing global replacement,
+     though. */
   p = pat;
-  if (pat && pat[0] == '/')
+  if (mflags & MATCH_GLOBREP)
-    {
+    mflags |= MATCH_ANY;
-      mflags |= MATCH_GLOBREP|MATCH_ANY;
-      p++;
-    }
   else if (pat && pat[0] == '#')
     {
       mflags |= MATCH_BEG;
@@ -5798,12 +5859,16 @@ parameter_brace_patsub (varname, value, patsub, quoted)
 #if defined (ARRAY_VARS)
     case VT_ARRAYVAR:
       temp = array_patsub (array_cell (v), p, rep, mflags);
+#if 0
+      /* Don't need to do this anymore; array_patsub calls array_quote_escapes
+	 as appropriate before adding the space separators. */
       if (temp && (mflags & MATCH_QUOTED) == 0)
 	{
 	  tt = quote_escapes (temp);
 	  free (temp);
 	  temp = tt;
 	}
+#endif
       break;
 #endif
     }
@@ -7607,6 +7672,10 @@ exp_jump_to_top_level (v)
   expand_no_split_dollar_star = 0;	/* XXX */
   expanding_redir = 0;
 
+  if (parse_and_execute_level == 0)
+    top_level_cleanup ();			/* from sig.c */
+
+
   jump_to_top_level (v);
 }
 
@@ -7824,7 +7893,7 @@ glob_expand_word_list (tlist, eflags)
 	  else if (fail_glob_expansion != 0)
 	    {
 	      report_error (_("no match: %s"), tlist->word->word);
-	      jump_to_top_level (DISCARD);
+	      exp_jump_to_top_level (DISCARD);
 	    }
 	  else if (allow_null_glob_expansion == 0)
 	    {

subst.h

@@ -135,7 +135,7 @@ extern WORD_LIST *expand_string_unsplit __P((char *, int));
 extern WORD_LIST *expand_string_assignment __P((char *, int));
 
 /* Expand a prompt string. */
-extern WORD_LIST *expand_prompt_string __P((char *, int));
+extern WORD_LIST *expand_prompt_string __P((char *, int, int));
 
 /* Expand STRING just as if you were expanding a word.  This also returns
    a list of words.  Note that filename globbing is *NOT* done for word
@@ -222,6 +222,7 @@ extern WORD_LIST *expand_words_shellexp __P((WORD_LIST *));
 extern char *command_substitute __P((char *, int));
 extern char *pat_subst __P((char *, char *, char *, int));
 
+extern int fifos_pending __P((void));
 extern void unlink_fifo_list __P((void));
 
 extern WORD_LIST *list_string_with_quotes __P((char *));

tests/new-exp.right

@@ -430,7 +430,7 @@ Case05---3---A:B:C---
 Case06---1---A B C::---
 Case07---3---A:B:C---
 Case08---3---A:B:C---
-./new-exp.tests: line 506: /${$(($#-1))}: bad substitution
+./new-exp.tests: line 506: ${$(($#-1))}: bad substitution
 argv[1] = <a>
 argv[2] = <b>
 argv[3] = <c>

tests/shopt.right

@@ -6,6 +6,7 @@ shopt -s cdspell
 shopt -u checkhash
 shopt -u checkwinsize
 shopt -s cmdhist
+shopt -u compat31
 shopt -u dotglob
 shopt -u execfail
 shopt -s expand_aliases
@@ -53,6 +54,7 @@ shopt -s sourcepath
 shopt -u cdable_vars
 shopt -u checkhash
 shopt -u checkwinsize
+shopt -u compat31
 shopt -u dotglob
 shopt -u execfail
 shopt -u extdebug
@@ -77,6 +79,7 @@ shopt -u xpg_echo
 cdable_vars    	off
 checkhash      	off
 checkwinsize   	off
+compat31       	off
 dotglob        	off
 execfail       	off
 extdebug       	off

variables.c

@@ -1821,11 +1821,17 @@ make_variable_value (var, value, flags)
 	  oval = value_cell (var);
 	  lval = evalexp (oval, &expok);	/* ksh93 seems to do this */
 	  if (expok == 0)
-	    jump_to_top_level (DISCARD);
+	    {
+	      top_level_cleanup ();
+	      jump_to_top_level (DISCARD);
+	    }
 	}
       rval = evalexp (value, &expok);
       if (expok == 0)
-	jump_to_top_level (DISCARD);
+	{
+	  top_level_cleanup ();
+	  jump_to_top_level (DISCARD);
+	}
       if (flags & ASS_APPEND)
 	rval += lval;
       retval = itos (rval);
@@ -3452,9 +3458,11 @@ push_func_var (data)
       if (shell_variables == global_variables)
 	var->attributes &= ~(att_tempvar|att_propagate);
       else
-        shell_variables->flags |= VC_HASTMPVAR;
+	shell_variables->flags |= VC_HASTMPVAR;
       v->attributes |= var->attributes;
     }
+  else
+    stupidly_hack_special_variables (var->name);	/* XXX */
 
   dispose_variable (var);
 }
@@ -3541,6 +3549,8 @@ push_exported_var (data)
 	var->attributes &= ~att_propagate;
       v->attributes |= var->attributes;
     }
+  else
+    stupidly_hack_special_variables (var->name);	/* XXX */
 
   dispose_variable (var);
 }

version.c

@@ -43,6 +43,9 @@ const char *release_status = (char *)0;
 #endif
 const char *sccs_version = SCCSVERSION;
 
+/* If == 31, shell compatible with bash-3.1, == 32 with bash-3.2, and so on */
+int shell_compatibility_level = 32;
+
 /* Functions for getting, setting, and displaying the shell version. */
 
 /* Forward declarations so we don't have to include externs.h */
@@ -79,5 +82,5 @@ show_shell_version (extended)
 {
   printf ("GNU bash, version %s (%s)\n", shell_version_string (), MACHTYPE);
   if (extended)
-    printf (_("Copyright (C) 2005 Free Software Foundation, Inc.\n"));
+    printf (_("Copyright (C) 2007 Free Software Foundation, Inc.\n"));
 }