Import of readline 4.3.

Non-readline modified files:

src/gdb/ChangeLog src/gdb/defs.h src/gdb/cli/cli-cmds.c
src/gdb/cli/cli-setshow.c src/gdb/tui/ChangeLog
src/gdb/tui/tuiWin.c

In readline directory:

        * compat.c, mbutil.c, misc.c, rlmbutil.h, rltypedefs.h,
        text.c, doc/history.0, doc/history.3, support/wcwidth.c,
        examples/readlinebuf.h, examples/rlcat.c: New files.

        * CHANGELOG, CHANGES, INSTALL,  MANIFEST, Makefile.in, README,
        aclocal.m4, ansi_stdlib.h, bind.c, callback.c, chardefs.h,
        complete.c, config.h.in, configure, configure.in, display.c,
        emacs_keymap.c, funmap.c, histexpand.c, histfile.c, histlib.h,
        history.c, history.h, histsearch.c, input.c, isearch.c,
        keymaps.c, keymaps.h, kill.c, macro.c, nls.c, parens.c,
        posixdir.h, readline.c, readline.h, rlconf.h, rldefs.h,
        rlprivate.h, rlshell.h, rlstdc.h, rltty.c, savestring.c,
        search.c, shell.c, signals.c, terminal.c, tilde.c, tilde.h,
        undo.c, util.c, vi_keymap.c, vi_mode.c, xmalloc.c, xmalloc.h,
        doc/Makefile.in, doc/hist.texinfo, doc/hstech.texinfo,
        doc/hsuser.texinfo, doc/manvers.texinfo, doc/readline.3,
        doc/rlman.texinfo, doc/rltech.texinfo, doc/rluser.texinfo
        doc/rluserman.texinfo, doc/texi2dvi, doc/texi2html,
        shlib/Makefile.in, support/install.sh, support/mkdirs,
        support/mkdist, support/shlib-install, support/shobj-conf,
        examples/Inputrc, examples/Makefile.in, examples/fileman.c,
        examples/histexamp.c, examples/manexamp.c, examples/rl.c,
        examples/rlfe.c, examples/rltest.c, examples/rlversion.c:
        Modified files.

1 files changed, 32 insertions, 11 deletions

diff --git a/readline/shell.c b/readline/shell.c
index b32726c..f1bdc67 100644
--- a/readline/shell.c
+++ b/readline/shell.c
@@ -45,28 +45,49 @@
 #  include <strings.h>
 #endif /* !HAVE_STRING_H */
 
+#if defined (HAVE_LIMITS_H)
+#  include <limits.h>
+#endif
+
 #include <fcntl.h>
 #include <pwd.h>
 
 #include <stdio.h>
 
+#include "rlstdc.h"
 #include "rlshell.h"
 #include "xmalloc.h"
 
 #if !defined (HAVE_GETPW_DECLS)
-extern struct passwd *getpwuid ();
+extern struct passwd *getpwuid PARAMS((uid_t));
 #endif /* !HAVE_GETPW_DECLS */
 
 #ifndef NULL
 #  define NULL 0
 #endif
 
+#ifndef CHAR_BIT
+#  define CHAR_BIT 8
+#endif
+
+/* Nonzero if the integer type T is signed.  */
+#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+
+/* Bound on length of the string representing an integer value of type T.
+   Subtract one for the sign bit if T is signed;
+   302 / 1000 is log10 (2) rounded up;
+   add one for integer division truncation;
+   add one more for a minus sign if t is signed.  */
+#define INT_STRLEN_BOUND(t) \
+  ((sizeof (t) * CHAR_BIT - TYPE_SIGNED (t)) * 302 / 1000 \
+   + 1 + TYPE_SIGNED (t))
+
 /* All of these functions are resolved from bash if we are linking readline
    as part of bash. */
 
 /* Does shell-like quoting using single quotes. */
 char *
-single_quote (string)
+sh_single_quote (string)
      char *string;
 {
   register int c;
@@ -97,24 +118,24 @@ single_quote (string)
 /* Set the environment variables LINES and COLUMNS to lines and cols,
    respectively. */
 void
-set_lines_and_columns (lines, cols)
+sh_set_lines_and_columns (lines, cols)
      int lines, cols;
 {
   char *b;
 
 #if defined (HAVE_PUTENV)
-  b = xmalloc (24);
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("LINES=") + 1);
   sprintf (b, "LINES=%d", lines);
   putenv (b);
-  b = xmalloc (24);
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + sizeof ("COLUMNS=") + 1);
   sprintf (b, "COLUMNS=%d", cols);
   putenv (b);
 #else /* !HAVE_PUTENV */
 #  if defined (HAVE_SETENV)
-  b = xmalloc (8);
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + 1);
   sprintf (b, "%d", lines);
   setenv ("LINES", b, 1);
-  b = xmalloc (8);
+  b = (char *)xmalloc (INT_STRLEN_BOUND (int) + 1);
   sprintf (b, "%d", cols);
   setenv ("COLUMNS", b, 1);
 #  endif /* HAVE_SETENV */
@@ -122,14 +143,14 @@ set_lines_and_columns (lines, cols)
 }
 
 char *
-get_env_value (varname)
-     char *varname;
+sh_get_env_value (varname)
+     const char *varname;
 {
   return ((char *)getenv (varname));
 }
 
 char *
-get_home_dir ()
+sh_get_home_dir ()
 {
   char *home_dir;
   struct passwd *entry;
@@ -148,7 +169,7 @@ get_home_dir ()
 #endif
 
 int
-unset_nodelay_mode (fd)
+sh_unset_nodelay_mode (fd)
      int fd;
 {
   int flags, bflags;