Enable xterm "metaSendsEscape" switch

ChangeLog

@@ -1,3 +1,6 @@
+2017-04-11  Markus Gans  <guru.mail@muenster.de>
+	* Enable xterm "metaSendsEscape" switch
+
 2017-04-09  Markus Gans  <guru.mail@muenster.de>
 	* The Final Cut compiles now also under NetBSD
 	* Rename preprocessor macro names with leading underscore

configure

@@ -18877,7 +18877,6 @@ $as_echo X"$ac_prefix_conf_OUT" |
       rm -f "$ac_prefix_conf_OUT"
       mv $tmp/pconfig.h "$ac_prefix_conf_OUT"
     fi
-    cp conftest.prefix _configs.sed
   else
     as_fn_error $? "input file $ac_prefix_conf_INP does not exist - skip generating $ac_prefix_conf_OUT" "$LINENO" 5
   fi

m4/ax_prefix_config_h.m4

@@ -8,18 +8,14 @@
 #
 # DESCRIPTION
 #
-#   This is a new variant from ac_prefix_config_ this one will use a
+#   Generate an installable config.h.
-#   lowercase-prefix if the config-define was starting with a
-#   lowercase-char, e.g. "#define const", "#define restrict", or "#define
-#   off_t", (and this one can live in another directory, e.g.
-#   testpkg/config.h therefore I decided to move the output-header to be the
-#   first arg)
 #
-#   takes the usual config.h generated header file; looks for each of the
+#   A package should not normally install its config.h as a system header,
-#   generated "#define SOMEDEF" lines, and prefixes the defined name (ie.
+#   but if it must, this macro can be used to avoid namespace pollution by
-#   makes it "#define PREFIX_SOMEDEF". The result is written to the output
+#   making a copy of config.h with a prefix added to all the macro names.
-#   config.header file. The PREFIX is converted to uppercase for the
+#
-#   conversions.
+#   Each "#define SOMEDEF" line of the configuration header has the given
+#   prefix added, in the same case as the first character of the macro name.
 #
 #   Defaults:
 #
@@ -27,9 +23,7 @@
 #     PREFIX = $PACKAGE
 #     ORIG-HEADER, from AM_CONFIG_HEADER(config.h)
 #
-#   Your configure.ac script should contain both macros in this order, and
+#   Your configure.ac script should contain both macros in this order.
-#   unlike the earlier variations of this prefix-macro it is okay to place
-#   the AX_PREFIX_CONFIG_H call before the AC_OUTPUT invokation.
 #
 #   Example:
 #
@@ -42,9 +36,10 @@
 #     AC_OUTPUT(Makefile)                 # creates the "config.h" now
 #                                         # and also mylib/_config.h
 #
-#   if the argument to AX_PREFIX_CONFIG_H would have been omitted then the
+#   If the argument to AX_PREFIX_CONFIG_H would have been omitted then the
-#   default outputfile would have been called simply "testpkg-config.h", but
+#   default output file would have been called simply "testpkg-config.h",
-#   even under the name "mylib/_config.h" it contains prefix-defines like
+#   but even under the name "mylib/_config.h" it contains prefix-defines
+#   like
 #
 #     #ifndef TESTPKG_VERSION
 #     #define TESTPKG_VERSION "0.1.1"
@@ -56,11 +51,10 @@
 #     #define _testpkg_const _const
 #     #endif
 #
-#   and this "mylib/_config.h" can be installed along with other
+#   and this "mylib/_config.h" can be installed along with other header
-#   header-files, which is most convenient when creating a shared library
+#   files, which is most convenient when creating a shared library (that has
-#   (that has some headers) where some functionality is dependent on the
+#   some headers) whose functionality depends on features detected at
-#   OS-features detected at compile-time. No need to invent some
+#   compile-time. No need to invent some "mylib-confdefs.h.in" manually.
-#   "mylib-confdefs.h.in" manually. :-)
 #
 #   Note that some AC_DEFINEs that end up in the config.h file are actually
 #   self-referential - e.g. AC_C_INLINE, AC_C_CONST, and the AC_TYPE_OFF_T
@@ -89,6 +83,7 @@
 #
 # LICENSE
 #
+#   Copyright (c) 2014 Reuben Thomas <rrt@sc3d.org>
 #   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
 #   Copyright (c) 2008 Marten Svantesson
 #   Copyright (c) 2008 Gerald Point <Gerald.Point@labri.fr>
@@ -119,12 +114,12 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 11
+#serial 15
 
 AC_DEFUN([AX_PREFIX_CONFIG_H],[dnl
 AC_PREREQ([2.62])
 AC_BEFORE([AC_CONFIG_HEADERS],[$0])dnl
-AC_CONFIG_COMMANDS([ifelse($1,,$PACKAGE-config.h,$1)],[dnl
+AC_CONFIG_COMMANDS(m4_default([$1], [$PACKAGE-config.h]),[dnl
 AS_VAR_PUSHDEF([_OUT],[ac_prefix_conf_OUT])dnl
 AS_VAR_PUSHDEF([_DEF],[ac_prefix_conf_DEF])dnl
 AS_VAR_PUSHDEF([_PKG],[ac_prefix_conf_PKG])dnl
@@ -133,12 +128,12 @@ AS_VAR_PUSHDEF([_UPP],[ac_prefix_conf_UPP])dnl
 AS_VAR_PUSHDEF([_INP],[ac_prefix_conf_INP])dnl
 m4_pushdef([_script],[conftest.prefix])dnl
 m4_pushdef([_symbol],[m4_cr_Letters[]m4_cr_digits[]_])dnl
-_OUT=`echo ifelse($1, , $PACKAGE-config.h, $1)`
+_OUT=`echo m4_default([$1], [$PACKAGE-config.h])`
 _DEF=`echo _$_OUT | sed -e "y:m4_cr_letters:m4_cr_LETTERS[]:" -e "s/@<:@^m4_cr_Letters@:>@/_/g"`
-_PKG=`echo ifelse($2, , $PACKAGE, $2)`
+_PKG=`echo m4_default([$2], [$PACKAGE])`
 _LOW=`echo _$_PKG | sed -e "y:m4_cr_LETTERS-:m4_cr_letters[]_:"`
 _UPP=`echo $_PKG | sed -e "y:m4_cr_letters-:m4_cr_LETTERS[]_:"  -e "/^@<:@m4_cr_digits@:>@/s/^/_/"`
-_INP=`echo "ifelse($3,,,$3)" | sed -e 's/ *//'`
+_INP=`echo "$3" | sed -e 's/ *//'`
 if test ".$_INP" = "."; then
    for ac_file in : $CONFIG_HEADERS; do test "_$ac_file" = _: && continue
      case "$ac_file" in
@@ -192,7 +187,6 @@ else
       rm -f "$_OUT"
       mv $tmp/pconfig.h "$_OUT"
     fi
-    cp _script _configs.sed
   else
     AC_MSG_ERROR([input file $_INP does not exist - skip generating $_OUT])
   fi

src/foptimove.cpp

@@ -727,7 +727,7 @@ int FOptiMove::repeatedAppend (capability& o, int count, char* dst)
 
       while ( count-- > 0 )
       {
-        std::strcpy (dst, o.cap);
+        std::strncpy (dst, o.cap, src_len + 1);
         dst += src_len;
       }
     }
@@ -757,7 +757,9 @@ int FOptiMove::relativeMove ( char*& move
     if ( F_row_address.cap )
     {
       if ( move )
-        std::strcpy (move, tparm(F_row_address.cap, to_y, 0, 0, 0, 0, 0, 0, 0, 0));
+        std::strncpy ( move
+                     , tparm(F_row_address.cap, to_y, 0, 0, 0, 0, 0, 0, 0, 0)
+                     , sizeof(move_buf) - 1 );
 
       vtime = F_row_address.duration;
     }
@@ -769,7 +771,9 @@ int FOptiMove::relativeMove ( char*& move
       if ( F_parm_down_cursor.cap && F_parm_down_cursor.duration < vtime )
       {
         if ( move )
-          std::strcpy (move, tparm(F_parm_down_cursor.cap, num, 0, 0, 0, 0, 0, 0, 0, 0));
+          std::strncpy ( move
+                       , tparm(F_parm_down_cursor.cap, num, 0, 0, 0, 0, 0, 0, 0, 0)
+                       , sizeof(move_buf) - 1 );
 
         vtime = F_parm_down_cursor.duration;
       }
@@ -789,7 +793,9 @@ int FOptiMove::relativeMove ( char*& move
       if ( F_parm_up_cursor.cap && F_parm_up_cursor.duration < vtime )
       {
         if ( move )
-          std::strcpy (move, tparm(F_parm_up_cursor.cap, num, 0, 0, 0, 0, 0, 0, 0, 0));
+          std::strncpy ( move
+                       , tparm(F_parm_up_cursor.cap, num, 0, 0, 0, 0, 0, 0, 0, 0)
+                       , sizeof(move_buf) - 1 );
 
         vtime = F_parm_up_cursor.duration;
       }
@@ -865,7 +871,7 @@ int FOptiMove::relativeMove ( char*& move
 
         if ( htime_r < htime )
         {
-          std::strcpy (hmove, str);
+          std::strncpy (hmove, str, sizeof(move_buf) - 1);
           htime = htime_r;
         }
 
@@ -915,7 +921,7 @@ int FOptiMove::relativeMove ( char*& move
 
         if ( htime_l < htime )
         {
-          std::strcpy (hmove, str);
+          std::strncpy (hmove, str, sizeof(move_buf) - 1);
           htime = htime_l;
         }
 
@@ -928,9 +934,9 @@ int FOptiMove::relativeMove ( char*& move
     if ( move )
     {
       if ( *move )
-        strcat (move, hmove);
+        std::strncat (move, hmove, sizeof(move_buf) - std::strlen(move) - 1);
       else
-        std::strcpy (move, hmove);
+        std::strncpy (move, hmove, sizeof(move_buf) - 1);
     }
   }
 

src/fstring.cpp

@@ -2235,7 +2235,7 @@ inline void FString::_replace (const wchar_t* s)
               << e.what() << std::endl;
     return;
   }*/
-  std::wcscpy (string, s);
+  std::wcsncpy (string, s, bufsize);
 }
 
 //----------------------------------------------------------------------
@@ -2257,7 +2257,7 @@ inline void FString::_insert (uInt pos, uInt len, const wchar_t* s)
       return;
     }
 
-    std::wcscpy (string, s);
+    std::wcsncpy (string, s, bufsize);
     return;
   }
   else

src/fterm.cpp

@@ -55,6 +55,7 @@ bool     FTerm::cygwin_terminal;
 bool     FTerm::mintty_terminal;
 bool     FTerm::linux_terminal;
 bool     FTerm::netbsd_terminal;
+bool     FTerm::openbsd_terminal;
 bool     FTerm::screen_terminal;
 bool     FTerm::tmux_terminal;
 bool     FTerm::pc_charset_console;
@@ -1747,6 +1748,20 @@ char* FTerm::changeAttribute ( char_data*& term_attr
   return opti_attr->changeAttribute (term_attr, next_attr);
 }
 
+//----------------------------------------------------------------------
+void FTerm::xtermMetaSendsESC (bool on)
+{
+  // activate/deactivate the xterm meta key sends escape prefix
+
+  if ( on )
+    putstring (CSI "?1036s"   // save meta key sends escape
+               CSI "?1036h"); // enable meta key sends escape
+  else
+    putstring (CSI "?1036r"); // restore meta key sends escape
+
+  std::fflush(stdout);
+}
+
 //----------------------------------------------------------------------
 void FTerm::xtermMouse (bool on)
 {
@@ -2637,7 +2652,13 @@ char* FTerm::parseSecDA (char*& current_termtype)
 
           case 24: // DEC VT320
             if ( terminal_id_version == 20 )
-              netbsd_terminal = true;  //  NetBSD workstation console
+            {
+              // NetBSD/OpenBSD workstation console
+              if ( std::strncmp(termtype, const_cast<char*>("wsvt25"), 6) == 0 )
+                netbsd_terminal = true;
+              else if ( std::strncmp(termtype, const_cast<char*>("vt220"), 5) == 0 )
+                openbsd_terminal = true;
+            }
             break;
 
           case 41: // DEC VT420
@@ -3501,6 +3522,7 @@ void FTerm::init()
   urxvt_terminal          = \
   mlterm_terminal         = \
   mintty_terminal         = \
+  openbsd_terminal        = \
   screen_terminal         = \
   tmux_terminal           = \
   xterm_default_colors    = false;
@@ -3727,6 +3749,10 @@ void FTerm::init()
     enableXTermMouse();
   }
 
+  // activate meta key sends escape
+  if ( xterm_terminal )
+    xtermMetaSendsESC(true);
+
   // enter 'keyboard_transmit' mode
   if ( tcap[fc::t_keypad_xmit].string )
   {
@@ -3900,9 +3926,14 @@ void FTerm::finish()
 
   resetBeep();
 
+  // disable xterm mouse support
   if ( mouse_support )
     disableXTermMouse();
 
+  // deactivate meta key sends escape
+  if ( xterm_terminal )
+    xtermMetaSendsESC(false);
+
 #ifdef F_HAVE_LIBGPM
 
   if ( gpm_mouse_enabled )

src/fterm.h

@@ -289,6 +289,7 @@ class FTerm
                                          , char_data*& );
    static bool           hasChangedTermSize();
    static void           changeTermSizeFinished();
+   static void           xtermMetaSendsESC (bool);
    static void           xtermMouse (bool);
    static void           enableXTermMouse();
    static void           disableXTermMouse();
@@ -432,6 +433,7 @@ class FTerm
    static bool    mintty_terminal;
    static bool    linux_terminal;
    static bool    netbsd_terminal;
+   static bool    openbsd_terminal;
    static bool    screen_terminal;
    static bool    tmux_terminal;
    static char    termtype[30];