root/trunk/bash/bash-3.1-fixes-7.patch

doc/bash.1

@@ -6 +6 @@
 .\"     Case Western Reserve University
 .\"     chet@po.cwru.edu
 .\"
-.\"     Last Change: Sat Aug 27 13:28:44 EDT 2005
+.\"     Last Change: Wed Dec 28 19:58:45 EST 2005
 .\"
 .\" bash_builtins, strip all but Built-Ins section
 .if \n(zZ=1 .ig zZ
 .if \n(zY=1 .ig zY
-.TH BASH 1 "2005 Aug 27" "GNU Bash-3.1-beta1"
+.TH BASH 1 "2005 Dec 28" "GNU Bash-3.1"
 .\"
 .\" There's some problem with having a `@'
 .\" in a tagged paragraph with the BSD man macros.
@@ -677 +677 @@
 .B nocasematch
 is enabled, the match is performed without regard to the case
 of alphabetic characters.
-The return value is 0 if the string matches or does not match
-the pattern, respectively, and 1 otherwise.
+The return value is 0 if the string matches (\fB==\fP) or does not match
+(\fB!=\fP) the pattern, and 1 otherwise.
 Any part of the pattern may be quoted to force it to be matched as a
 string.
 .if t .sp 0.5
@@ -807 +807 @@
 as for pathname expansion (see
 .B Pathname Expansion
 below).
+The \fIword\fP is expanded using tilde
+expansion, parameter and variable expansion, arithmetic substituion,
+command substitution, process substitution and quote removal.
+Each \fIpattern\fP examined is expanded using tilde
+expansion, parameter and variable expansion, arithmetic substituion,
+command substitution, and process substitution.
 If the shell option
 .B nocasematch
 is enabled, the match is performed without regard to the case
@@ -8484 +8490 @@
 returns true if any of the arguments are found, false if
 none are found.
 .TP
-\fBulimit\fP [\fB\-SHacdflmnpstuv\fP [\fIlimit\fP]]
+\fBulimit\fP [\fB\-SHacdfilmnpqstuvx\fP [\fIlimit\fP]]
 Provides control over the resources available to the shell and to
 processes started by it, on systems that allow such control.
 The \fB\-H\fP and \fB\-S\fP options specify that the hard or soft limit is
@@ -8523 +8529 @@
 .B \-f
 The maximum size of files created by the shell
 .TP
+.B \-i
+The maximum number of pending signals
+.TP
 .B \-l
 The maximum size that may be locked into memory
 .TP
@@ -8536 +8545 @@
 .B \-p
 The pipe size in 512-byte blocks (this may not be set)
 .TP
+.B \-q
+The maximum number of bytes in POSIX message queues
+.TP
 .B \-s
 The maximum stack size
 .TP
@@ -8547 +8559 @@
 .TP
 .B \-v
 The maximum amount of virtual memory available to the shell
+.TP
+.B \-x
+The maximum number of file locks
 .PD
 .PP
 If

doc/bashref.texi

@@ -961 +961 @@
 (see the description of @code{shopt} in @ref{Bash Builtins})
 is enabled, the match is performed without regard to the case
 of alphabetic characters.
-The return value is 0 if the string matches or does not match
-the pattern, respectively, and 1 otherwise.
+The return value is 0 if the string matches (@samp{==}) or does not
+match (@samp{!=})the pattern, and 1 otherwise.
 Any part of the pattern may be quoted to force it to be matched as a
 string.
 
@@ -2598 +2598 @@
 Builtin commands are necessary to implement functionality impossible
 or inconvenient to obtain with separate utilities.
 
-This section briefly the builtins which Bash inherits from
+This section briefly describes the builtins which Bash inherits from
 the Bourne Shell, as well as the builtin commands which are unique
 to or have been extended in Bash.
 
@@ -3833 +3833 @@
 @item ulimit
 @btindex ulimit
 @example
-ulimit [-acdflmnpstuvSH] [@var{limit}]
+ulimit [-acdfilmnpqstuvxSH] [@var{limit}]
 @end example
 @code{ulimit} provides control over the resources available to processes
 started by the shell, on systems that allow such control.  If an
@@ -3857 +3857 @@
 @item -f
 The maximum size of files created by the shell.
 
+@item -i
+The maximum number of pending signals.
+
 @item -l
 The maximum size that may be locked into memory.
 
@@ -3869 +3872 @@
 @item -p
 The pipe buffer size.
 
+@item -q
+The maximum number of bytes in POSIX message queues.
+
 @item -s
 The maximum stack size.
 
@@ -3881 +3887 @@
 @item -v
 The maximum amount of virtual memory available to the process.
 
+@item -x
+The maximum number of file locks.
+
 @end table
 
 If @var{limit} is given, it is the new value of the specified resource;
@@ -4089 +4098 @@
 Print shell input lines as they are read.
 
 @item -x
-Print a trace of simple commands, \fBfor\fP commands, \fBcase\fP
-commands, \fBselect\fP commands, and arithmetic \fBfor\fP commands
+Print a trace of simple commands, @code{for} commands, @code{case}
+commands, @code{select} commands, and arithmetic @code{for} commands
 and their arguments or associated word lists after they are
 expanded and before they are executed.  The value of the @env{PS4}
 variable is expanded and the resultant value is printed before

doc/version.texi

@@ -2 +2 @@
 Copyright (C) 1988-2005 Free Software Foundation, Inc.
 @end ignore
 
-@set LASTCHANGE Mon Sep  5 11:47:04 EDT 2005
+@set LASTCHANGE Fri Dec 30 10:50:51 EST 2005
 
-@set EDITION 3.1-beta1
-@set VERSION 3.1-beta1
-@set UPDATED 5 September 2005
-@set UPDATED-MONTH September 2005
+@set EDITION 3.1
+@set VERSION 3.1
+@set UPDATED 30 December 2005
+@set UPDATED-MONTH December 2005

bash-3.1

@@ -619 +619 @@
            * once in the parent and once in each child.  This is where
            * the parent gives it away.
            *
+           * Don't give the terminal away if this shell is an asynchronous
+           * subshell.
+           *
            */
-          if (job_control && newjob->pgrp)
+          if (job_control && newjob->pgrp && (subshell_environment&SUBSHELL_ASYNC) == 0)
             give_terminal_to (newjob->pgrp, 0);
         }
     }
@@ -844 +847 @@
 realloc_jobs_list ()
 {
   sigset_t set, oset;
-  int nsize, i, j;
+  int nsize, i, j, ncur, nprev;
   JOB **nlist;
 
+  ncur = nprev = NO_JOB;
   nsize = ((js.j_njobs + JOB_SLOTS - 1) / JOB_SLOTS);
   nsize *= JOB_SLOTS;
   i = js.j_njobs % JOB_SLOTS;
@@ -854 +858 @@
     nsize += JOB_SLOTS;
 
   BLOCK_CHILD (set, oset);
-  nlist = (JOB **) xmalloc (nsize * sizeof (JOB *));
+  nlist = (js.j_jobslots == nsize) ? jobs : (JOB **) xmalloc (nsize * sizeof (JOB *));
+
   for (i = j = 0; i < js.j_jobslots; i++)
     if (jobs[i])
-      nlist[j++] = jobs[i];
+      {
+        if (i == js.j_current)
+          ncur = j;
+        if (i == js.j_previous)
+          nprev = j;
+        nlist[j++] = jobs[i];
+      }
+
+#if defined (DEBUG)
+  itrace ("realloc_jobs_list: resize jobs list from %d to %d", js.j_jobslots, nsize);
+  itrace ("realloc_jobs_list: j_lastj changed from %d to %d", js.j_lastj, (j > 0) ? j - 1 : 0);
+  itrace ("realloc_jobs_list: j_njobs changed from %d to %d", js.j_njobs, (j > 0) ? j - 1 : 0);
+#endif
 
   js.j_firstj = 0;
-  js.j_lastj = (j > 0) ? j - 1: 0;
+  js.j_lastj = (j > 0) ? j - 1 : 0;
+  js.j_njobs = j;
   js.j_jobslots = nsize;
 
-  free (jobs);
-  jobs = nlist;
+  /* Zero out remaining slots in new jobs list */
+  for ( ; j < nsize; j++)
+    nlist[j] = (JOB *)NULL;
+
+  if (jobs != nlist)
+    {
+      free (jobs);
+      jobs = nlist;
+    }
+
+  if (ncur != NO_JOB)
+    js.j_current = ncur;
+  if (nprev != NO_JOB)
+    js.j_previous = nprev;
+
+  /* Need to reset these */
+  if (js.j_current == NO_JOB || js.j_previous == NO_JOB || js.j_current > js.j_lastj || js.j_previous > js.j_lastj)
+    reset_current ();
+
+#ifdef DEBUG
+  itrace ("realloc_jobs_list: reset js.j_current (%d) and js.j_previous (%d)", js.j_current, js.j_previous);
+#endif
 
   UNBLOCK_CHILD (oset);
 }
@@ -1655 +1693 @@
              In this case, we don't want to give the terminal to the
              shell's process group (we could be in the middle of a
              pipeline, for example). */
-          if (async_p == 0 && pipeline_pgrp != shell_pgrp)
+          if (async_p == 0 && pipeline_pgrp != shell_pgrp && ((subshell_environment&SUBSHELL_ASYNC) == 0))
             give_terminal_to (pipeline_pgrp, 0);
 
 #if defined (PGRP_PIPE)
@@ -2198 +2236 @@
   /* This is possibly a race condition -- should it go in stop_pipeline? */
   wait_sigint_received = 0;
   if (job_control == 0)
-    old_sigint_handler = set_signal_handler (SIGINT, wait_sigint_handler);
+    {
+      old_sigint_handler = set_signal_handler (SIGINT, wait_sigint_handler);
+      if (old_sigint_handler == SIG_IGN)
+        set_signal_handler (SIGINT, old_sigint_handler);
+    }
 
   termination_state = last_command_exit_value;
 

lib/glob/glob.c

@@ -360 +360 @@
   count = lose = skip = 0;
 
   firstmalloc = 0;
+  nalloca = 0;
 
   /* If PAT is empty, skip the loop, but return one (empty) filename. */
   if (pat == 0 || *pat == '\0')
@@ -546 +547 @@
                 firstmalloc = 0;
               tmplink = lastlink;
             }
+          else
+            tmplink = 0;
           free (lastlink->name);
           lastlink = lastlink->next;
           FREE (tmplink);

lib/glob/sm_loop.c

@@ -638 +638 @@
   CHAR *psub;                   /* pointer to sub-pattern */
   CHAR *pnext;                  /* pointer to next sub-pattern */
   CHAR *srest;                  /* pointer to rest of string */
-  int m1, m2;
+  int m1, m2, xflags;           /* xflags = flags passed to recursive matches */
 
 #if DEBUG_MATCHING
 fprintf(stderr, "extmatch: xc = %c\n", xc);
 fprintf(stderr, "extmatch: s = %s; se = %s\n", s, se);
 fprintf(stderr, "extmatch: p = %s; pe = %s\n", p, pe);
+fprintf(stderr, "extmatch: flags = %d\n", flags);
 #endif
 
   prest = PATSCAN (p + (*p == L('(')), pe, 0); /* ) */
@@ -677 +678 @@
                  string matches the rest of the pattern.  Also handle
                  multiple matches of the pattern. */
               if (m1)
-                m2 = (GMATCH (srest, se, prest, pe, flags) == 0) ||
-                      (s != srest && GMATCH (srest, se, p - 1, pe, flags) == 0);
+                {
+                  /* if srest > s, we are not at start of string */
+                  xflags = (srest > s) ? (flags & ~FNM_PERIOD) : flags;
+                  m2 = (GMATCH (srest, se, prest, pe, xflags) == 0) ||
+                        (s != srest && GMATCH (srest, se, p - 1, pe, xflags) == 0);
+                }
               if (m1 && m2)
                 return (0);
             }
@@ -704 +709 @@
           srest = (prest == pe) ? se : s;
           for ( ; srest <= se; srest++)
             {
+              /* if srest > s, we are not at start of string */
+              xflags = (srest > s) ? (flags & ~FNM_PERIOD) : flags;
               if (GMATCH (s, srest, psub, pnext - 1, flags) == 0 &&
-                  GMATCH (srest, se, prest, pe, flags) == 0)
+                  GMATCH (srest, se, prest, pe, xflags) == 0)
                 return (0);
             }
           if (pnext == prest)
@@ -726 +733 @@
               if (pnext == prest)
                 break;
             }
-          if (m1 == 0 && GMATCH (srest, se, prest, pe, flags) == 0)
+          /* if srest > s, we are not at start of string */
+          xflags = (srest > s) ? (flags & ~FNM_PERIOD) : flags;
+          if (m1 == 0 && GMATCH (srest, se, prest, pe, xflags) == 0)
             return (0);
         }
       return (FNM_NOMATCH);

lib/readline/display.c

@@ -1983 +1983 @@
      int pchar;
 {
   int len;
-  char *pmt;
+  char *pmt, *p;
 
   rl_save_prompt ();
 
-  if (saved_local_prompt == 0)
+  /* We've saved the prompt, and can do anything with the various prompt
+     strings we need before they're restored.  We want the unexpanded
+     portion of the prompt string after any final newline. */
+  p = rl_prompt ? strrchr (rl_prompt, '\n') : 0;
+  if (p == 0)
     {
       len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
       pmt = (char *)xmalloc (len + 2);
@@ -1998 +2002 @@
     }
   else
     {
-      len = *saved_local_prompt ? strlen (saved_local_prompt) : 0;
+      p++;
+      len = strlen (p);
       pmt = (char *)xmalloc (len + 2);
       if (len)
-        strcpy (pmt, saved_local_prompt);
+        strcpy (pmt, p);
       pmt[len] = pchar;
       pmt[len+1] = '\0';
-      local_prompt = savestring (pmt);
-      prompt_last_invisible = saved_last_invisible;
-      prompt_visible_length = saved_visible_length + 1;
-    }
+    }  
 
+  /* will be overwritten by expand_prompt, called from rl_message */
   prompt_physical_chars = saved_physical_chars + 1;
-
   return pmt;
 }
 

lib/readline/readline.c

@@ -282 +282 @@
 {
   FREE (rl_prompt);
   rl_prompt = prompt ? savestring (prompt) : (char *)NULL;
+  rl_display_prompt = rl_prompt ? rl_prompt : "";
 
   rl_visible_prompt_length = rl_expand_prompt (rl_prompt);
   return 0;

lib/readline/terminal.c

@@ -122 +122 @@
 static char *_rl_visible_bell;
 
 /* Non-zero means the terminal can auto-wrap lines. */
-int _rl_term_autowrap;
+int _rl_term_autowrap = -1;
 
 /* Non-zero means that this terminal has a meta key. */
 static int term_has_meta;
@@ -274 +274 @@
 _rl_set_screen_size (rows, cols)
      int rows, cols;
 {
+  if (_rl_term_autowrap == -1)
+    _rl_init_terminal_io (rl_terminal_name);
+
   if (rows > 0)
     _rl_screenheight = rows;
   if (cols > 0)

parse.y

@@ -2716 +2716 @@
 #define P_ALLOWESC      0x02
 #define P_DQUOTE        0x04
 #define P_COMMAND       0x08    /* parsing a command, so look for comments */
+#define P_BACKQUOTE     0x10    /* parsing a backquoted command substitution */
 
 static char matched_pair_error;
 static char *
@@ -2725 +2726 @@
      int *lenp, flags;
 {
   int count, ch, was_dollar, in_comment, check_comment;
-  int pass_next_character, nestlen, ttranslen, start_lineno;
+  int pass_next_character, backq_backslash, nestlen, ttranslen, start_lineno;
   char *ret, *nestret, *ttrans;
   int retind, retsize, rflags;
 
   count = 1;
-  pass_next_character = was_dollar = in_comment = 0;
+  pass_next_character = backq_backslash = was_dollar = in_comment = 0;
   check_comment = (flags & P_COMMAND) && qc != '\'' && qc != '"' && (flags & P_DQUOTE) == 0;
 
   /* RFLAGS is the set of flags we want to pass to recursive calls. */
@@ -2742 +2743 @@
   start_lineno = line_number;
   while (count)
     {
-#if 0
-      ch = shell_getc ((qc != '\'' || (flags & P_ALLOWESC)) && pass_next_character == 0);
-#else
-      ch = shell_getc (qc != '\'' && pass_next_character == 0);
-#endif
+      ch = shell_getc (qc != '\'' && pass_next_character == 0 && backq_backslash == 0);
+
       if (ch == EOF)
         {
           free (ret);
@@ -2771 +2769 @@
           continue;
         }
       /* Not exactly right yet */
-      else if (check_comment && in_comment == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || whitespace (ret[retind -1])))
+      else if MBTEST(check_comment && in_comment == 0 && ch == '#' && (retind == 0 || ret[retind-1] == '\n' || whitespace (ret[retind - 1])))
         in_comment = 1;
 
+      /* last char was backslash inside backquoted command substitution */
+      if (backq_backslash)
+        {
+          backq_backslash = 0;
+          /* Placeholder for adding special characters */
+        }
+
       if (pass_next_character)          /* last char was backslash */
         {
           pass_next_character = 0;
@@ -2814 +2819 @@
         {
           if MBTEST((flags & P_ALLOWESC) && ch == '\\')
             pass_next_character++;
+          else if MBTEST((flags & P_BACKQUOTE) && ch == '\\')
+            backq_backslash++;
           continue;
         }
 
@@ -2898 +2905 @@
         }
       else if MBTEST(qc == '`' && (ch == '"' || ch == '\'') && in_comment == 0)
         {
-          nestret = parse_matched_pair (0, ch, ch, &nestlen, rflags);
+          /* Add P_BACKQUOTE so backslash quotes the next character and
+             shell_getc does the right thing with \<newline>.  We do this for
+             a measure  of backwards compatibility -- it's not strictly the
+             right POSIX thing. */
+          nestret = parse_matched_pair (0, ch, ch, &nestlen, rflags|P_BACKQUOTE);
           goto add_nestret;
         }
       else if MBTEST(was_dollar && (ch == '(' || ch == '{' || ch == '['))       /* ) } ] */
@@ -2907 +2918 @@
           if (open == ch)       /* undo previous increment */
             count--;
           if (ch == '(')                /* ) */
-            nestret = parse_matched_pair (0, '(', ')', &nestlen, rflags);
+            nestret = parse_matched_pair (0, '(', ')', &nestlen, rflags & ~P_DQUOTE);
           else if (ch == '{')           /* } */
             nestret = parse_matched_pair (0, '{', '}', &nestlen, P_FIRSTCLOSE|rflags);
           else if (ch == '[')           /* ] */
@@ -3578 +3589 @@
               FREE (ttok);
               all_digit_token = 0;
               compound_assignment = 1;
-#if 0
+#if 1
               goto next_character;
 #else
               goto got_token;           /* ksh93 seems to do this */
@@ -3695 +3706 @@
       struct builtin *b;
       b = builtin_address_internal (token, 0);
       if (b && (b->flags & ASSIGNMENT_BUILTIN))
-        parser_state |= PST_ASSIGNOK;
+        parser_state |= PST_ASSIGNOK;
+      else if (STREQ (token, "eval") || STREQ (token, "let"))
+        parser_state |= PST_ASSIGNOK;
     }
 
   yylval.word = the_word;
@@ -4686 +4699 @@
      int *retlenp;
 {
   WORD_LIST *wl, *rl;
-  int tok, orig_line_number, orig_token_size;
+  int tok, orig_line_number, orig_token_size, orig_last_token, assignok;
   char *saved_token, *ret;
 
   saved_token = token;
   orig_token_size = token_buffer_size;
   orig_line_number = line_number;
+  orig_last_token = last_read_token;
 
   last_read_token = WORD;       /* WORD to allow reserved words here */
 
   token = (char *)NULL;
   token_buffer_size = 0;
 
+  assignok = parser_state&PST_ASSIGNOK;         /* XXX */
+
   wl = (WORD_LIST *)NULL;       /* ( */
   parser_state |= PST_COMPASSIGN;
 
@@ -4740 +4756 @@
         jump_to_top_level (DISCARD);
     }
 
-  last_read_token = WORD;
+  last_read_token = orig_last_token;            /* XXX - was WORD? */
   if (wl)
     {
       rl = REVERSE_LIST (wl, WORD_LIST *);
@@ -4752 +4768 @@
 
   if (retlenp)
     *retlenp = (ret && *ret) ? strlen (ret) : 0;
+
+  if (assignok)
+    parser_state |= PST_ASSIGNOK;
+
   return ret;
 }
 

patchlevel.h

@@ -25 +25 @@
    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 16
 
 #endif /* _PATCHLEVEL_H_ */

subst.c

@@ -2187 +2187 @@
   if (mklocal && variable_context)
     {
       v = find_variable (name);
-      if (v == 0 || array_p (v) == 0)
+      if (v == 0 || array_p (v) == 0 || v->context != variable_context)
         v = make_local_array_variable (name);
       v = assign_array_var_from_string (v, value, flags);
     }
@@ -6795 +6795 @@
           if (temp && *temp && t_index > 0)
             {
               temp1 = bash_tilde_expand (temp, tflag);
+              if  (temp1 && *temp1 == '~' && STREQ (temp, temp1))
+                {
+                  FREE (temp);
+                  FREE (temp1);
+                  goto add_character;           /* tilde expansion failed */
+                }
               free (temp);
               temp = temp1;
               sindex += t_index;

variables.c

@@ -860 +860 @@
 {
   char val[INT_STRLEN_BOUND(int) + 1], *v;
 
+#if defined (READLINE)
   /* If we are currently assigning to LINES or COLUMNS, don't do anything. */
   if (winsize_assignment)
     return;
+#endif
 
   v = inttostr (lines, val, sizeof (val));
   bind_variable ("LINES", v, 0);