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[Bash-announce] Bash-3.2 Official Patch 22


From: Chet Ramey
Subject: [Bash-announce] Bash-3.2 Official Patch 22
Date: Fri, 24 Aug 2007 15:37:13 -0400

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

Bash-Release: 3.2
Patch-ID: bash32-022

Bug-Reported-by:        Chet Ramey <address@hidden>
Bug-Reference-ID:
Bug-Reference-URL:

Bug-Description:

POSIX specifies that the `read' builtin invoked from an interative shell
must prompt with $PS2 when a line is continued using a backslash while
reading from a terminal.

Patch:

*** ../bash-3.2-patched/builtins/read.def       Tue Sep 19 08:45:48 2006
--- builtins/read.def   Thu May 24 16:03:30 2007
***************
*** 128,133 ****
  {
    register char *varname;
!   int size, i, nr, pass_next, saw_escape, eof, opt, retval, code;
!   int input_is_tty, input_is_pipe, unbuffered_read;
    int raw, edit, nchars, silent, have_timeout, fd;
    unsigned int tmout;
--- 131,136 ----
  {
    register char *varname;
!   int size, i, nr, pass_next, saw_escape, eof, opt, retval, code, print_ps2;
!   int input_is_tty, input_is_pipe, unbuffered_read, skip_ctlesc, skip_ctlnul;
    int raw, edit, nchars, silent, have_timeout, fd;
    unsigned int tmout;
***************
*** 135,139 ****
    char c;
    char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname;
!   char *e, *t, *t1;
    struct stat tsb;
    SHELL_VAR *var;
--- 138,142 ----
    char c;
    char *input_string, *orig_input_string, *ifs_chars, *prompt, *arrayname;
!   char *e, *t, *t1, *ps2;
    struct stat tsb;
    SHELL_VAR *var;
***************
*** 149,152 ****
--- 152,156 ----
    USE_VAR(i);
    USE_VAR(pass_next);
+   USE_VAR(print_ps2);
    USE_VAR(saw_escape);
    USE_VAR(input_is_pipe);
***************
*** 164,167 ****
--- 168,172 ----
  #endif
    USE_VAR(list);
+   USE_VAR(ps2);
  
    i = 0;              /* Index into the string that we are reading. */
***************
*** 387,391 ****
  #endif
  
!   for (eof = retval = 0;;)
      {
  #if defined (READLINE)
--- 394,399 ----
  #endif
  
!   ps2 = 0;
!   for (print_ps2 = eof = retval = 0;;)
      {
  #if defined (READLINE)
***************
*** 413,416 ****
--- 421,433 ----
  #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);
***************
*** 441,445 ****
          pass_next = 0;
          if (c == '\n')
!           i--;                /* back up over the CTLESC */
          else
            goto add_char;
--- 458,466 ----
          pass_next = 0;
          if (c == '\n')
!           {
!             i--;              /* back up over the CTLESC */
!             if (interactive && input_is_tty && raw == 0)
!               print_ps2 = 1;
!           }
          else
            goto add_char;
*** ../bash-3.2/patchlevel.h    Thu Apr 13 08:31:04 2006
--- patchlevel.h        Mon Oct 16 14:22:54 2006
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 21
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 22
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                       Live Strong.  No day but today.
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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