ncurses 5.9 - patch 20120721
[ncurses.git] / ncurses / tinfo / lib_setup.c
index e4edd04fa9f3569d8d7da4a74b8104f1d994b5d1..eb0bffb1654a6c0dc0325469d674f197cac63615 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -37,6 +37,7 @@
  * Terminal setup routines common to termcap and terminfo:
  *
  *             use_env(bool)
+ *             use_tioctl(bool)
  *             setupterm(char *, int, int *)
  */
 
@@ -47,7 +48,7 @@
 #include <locale.h>
 #endif
 
-MODULE_ID("$Id: lib_setup.c,v 1.139 2011/08/05 21:56:40 tom Exp $")
+MODULE_ID("$Id: lib_setup.c,v 1.148 2012/07/21 18:05:41 tom Exp $")
 
 /****************************************************************************
  *
@@ -231,6 +232,21 @@ NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f)
     returnVoid;
 }
 
+NCURSES_EXPORT(void)
+NCURSES_SP_NAME(use_tioctl) (NCURSES_SP_DCLx bool f)
+{
+    T((T_CALLED("use_tioctl(%p,%d)"), (void *) SP_PARM, (int) f));
+#if NCURSES_SP_FUNCS
+    START_TRACE();
+    if (IsPreScreen(SP_PARM)) {
+       SP_PARM->_use_tioctl = f;
+    }
+#else
+    _nc_prescreen.use_tioctl = f;
+#endif
+    returnVoid;
+}
+
 #if NCURSES_SP_FUNCS
 NCURSES_EXPORT(void)
 use_env(bool f)
@@ -240,6 +256,15 @@ use_env(bool f)
     _nc_prescreen.use_env = f;
     returnVoid;
 }
+
+NCURSES_EXPORT(void)
+use_tioctl(bool f)
+{
+    T((T_CALLED("use_tioctl(%d)"), (int) f));
+    START_TRACE();
+    _nc_prescreen.use_tioctl = f;
+    returnVoid;
+}
 #endif
 
 NCURSES_EXPORT(void)
@@ -279,7 +304,7 @@ _nc_get_screensize(SCREEN *sp,
     *linep = (int) lines;
     *colp = (int) columns;
 
-    if (_nc_prescreen.use_env) {
+    if (_nc_prescreen.use_env || _nc_prescreen.use_tioctl) {
        int value;
 
 #ifdef __EMX__
@@ -287,7 +312,9 @@ _nc_get_screensize(SCREEN *sp,
            int screendata[2];
            _scrsize(screendata);
            *colp = screendata[0];
-           *linep = screendata[1];
+           *linep = ((sp != 0 && sp->_filtered)
+                     ? 1
+                     : screendata[1]);
            T(("EMX screen size: environment LINES = %d COLUMNS = %d",
               *linep, *colp));
        }
@@ -313,19 +340,33 @@ _nc_get_screensize(SCREEN *sp,
        }
 #endif /* HAVE_SIZECHANGE */
 
-       /*
-        * Finally, look for environment variables.
-        *
-        * Solaris lets users override either dimension with an environment
-        * variable.
-        */
-       if ((value = _nc_getenv_num("LINES")) > 0) {
-           *linep = value;
-           T(("screen size: environment LINES = %d", *linep));
-       }
-       if ((value = _nc_getenv_num("COLUMNS")) > 0) {
-           *colp = value;
-           T(("screen size: environment COLUMNS = %d", *colp));
+       if (_nc_prescreen.use_env) {
+           if (_nc_prescreen.use_tioctl) {
+               /*
+                * If environment variables are used, update them.
+                */
+               if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) {
+                   _nc_setenv_num("LINES", *linep);
+               }
+               if (_nc_getenv_num("COLUMNS") > 0) {
+                   _nc_setenv_num("COLUMNS", *colp);
+               }
+           }
+
+           /*
+            * Finally, look for environment variables.
+            *
+            * Solaris lets users override either dimension with an environment
+            * variable.
+            */
+           if ((value = _nc_getenv_num("LINES")) > 0) {
+               *linep = value;
+               T(("screen size: environment LINES = %d", *linep));
+           }
+           if ((value = _nc_getenv_num("COLUMNS")) > 0) {
+               *colp = value;
+               T(("screen size: environment COLUMNS = %d", *colp));
+           }
        }
 
        /* if we can't get dynamic info about the size, use static */
@@ -399,8 +440,11 @@ _nc_update_screensize(SCREEN *sp)
      */
     if (sp != 0
        && sp->_resize != 0) {
-       if ((new_lines != old_lines) || (new_cols != old_cols))
+       if ((new_lines != old_lines) || (new_cols != old_cols)) {
            sp->_resize(NCURSES_SP_ARGx new_lines, new_cols);
+       } else if (sp->_sig_winch && (sp->_ungetch != 0)) {
+           sp->_ungetch(SP_PARM, KEY_RESIZE);  /* so application can know this */
+       }
        sp->_sig_winch = FALSE;
     }
 }
@@ -412,22 +456,6 @@ _nc_update_screensize(SCREEN *sp)
  *
  ****************************************************************************/
 
-#define ret_error(code, fmt, arg)      if (errret) {\
-                                           *errret = code;\
-                                           returnCode(ERR);\
-                                       } else {\
-                                           fprintf(stderr, fmt, arg);\
-                                           exit(EXIT_FAILURE);\
-                                       }
-
-#define ret_error0(code, msg)          if (errret) {\
-                                           *errret = code;\
-                                           returnCode(ERR);\
-                                       } else {\
-                                           fprintf(stderr, msg);\
-                                           exit(EXIT_FAILURE);\
-                                       }
-
 #if USE_DATABASE || USE_TERMCAP
 /*
  * Return 1 if entry found, 0 if not found, -1 if database not accessible,
@@ -465,7 +493,7 @@ _nc_setup_tinfo(const char *const tn, TERMTYPE *const tp)
 **     and substitute it in for the prototype given in 'command_character'.
 */
 void
-_nc_tinfo_cmdch(TERMINAL * termp, char proto)
+_nc_tinfo_cmdch(TERMINAL * termp, int proto)
 {
     unsigned i;
     char CC;
@@ -480,7 +508,7 @@ _nc_tinfo_cmdch(TERMINAL * termp, char proto)
        CC = *tmp;
        for_each_string(i, &(termp->type)) {
            for (tmp = termp->type.Strings[i]; tmp && *tmp; tmp++) {
-               if (*tmp == proto)
+               if (UChar(*tmp) == proto)
                    *tmp = CC;
            }
        }
@@ -576,7 +604,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
                 NCURSES_CONST char *tname,
                 int Filedes,
                 int *errret,
-                bool reuse)
+                int reuse)
 {
 #ifdef USE_TERM_DRIVER
     TERMINAL_CONTROL_BLOCK *TCB = 0;
@@ -682,7 +710,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
            const TERMTYPE *fallback = _nc_fallback(tname);
 
            if (fallback) {
-               termp->type = *fallback;
+               _nc_copy_termtype(&(termp->type), fallback);
                status = TGETENT_YES;
            }
        }
@@ -692,11 +720,11 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
            if (status == TGETENT_ERR) {
                ret_error0(status, "terminals database is inaccessible\n");
            } else if (status == TGETENT_NO) {
-               ret_error(status, "'%s': unknown terminal type.\n", tname);
+               ret_error1(status, "unknown terminal type.\n", tname);
            }
        }
 #if !USE_REENTRANT
-       strncpy(ttytype, termp->type.term_names, NAMESIZE - 1);
+       strncpy(ttytype, termp->type.term_names, (size_t) (NAMESIZE - 1));
        ttytype[NAMESIZE - 1] = '\0';
 #endif
 
@@ -706,7 +734,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
        set_curterm(termp);
 
        if (command_character)
-           _nc_tinfo_cmdch(termp, *command_character);
+           _nc_tinfo_cmdch(termp, UChar(*command_character));
 
        /*
         * If an application calls setupterm() rather than initscr() or
@@ -740,10 +768,19 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
 
 #ifndef USE_TERM_DRIVER
     if (generic_type) {
-       ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname);
-    }
-    if (hard_copy) {
-       ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname);
+       /*
+        * BSD 4.3's termcap contains mis-typed "gn" for wy99.  Do a sanity
+        * check before giving up.
+        */
+       if ((VALID_STRING(cursor_address)
+            || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home)))
+           && VALID_STRING(clear_screen)) {
+           ret_error1(TGETENT_YES, "terminal is not really generic.\n", tname);
+       } else {
+           ret_error1(TGETENT_NO, "I need something more specific.\n", tname);
+       }
+    } else if (hard_copy) {
+       ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", tname);
     }
 #endif
     returnCode(code);
@@ -796,7 +833,7 @@ NCURSES_EXPORT(int)
 _nc_setupterm(NCURSES_CONST char *tname,
              int Filedes,
              int *errret,
-             bool reuse)
+             int reuse)
 {
     int res;
     TERMINAL *termp;