]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/tinfo/lib_setup.c
ncurses 6.0 - patch 20150725
[ncurses.git] / ncurses / tinfo / lib_setup.c
index 378fd940d04fcf7fdecfe5bcd83c655993a830a0..0a0a1f5badb50acade9f406776c5a5708c82509b 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2014,2015 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            *
  * Terminal setup routines common to termcap and terminfo:
  *
  *             use_env(bool)
+ *             use_tioctl(bool)
  *             setupterm(char *, int, int *)
  */
 
 #include <curses.priv.h>
 #include <tic.h>               /* for MAX_NAME_SIZE */
 
-#if SVR4_TERMIO && !defined(_POSIX_SOURCE)
-#define _POSIX_SOURCE
-#endif
-
 #if HAVE_LOCALE_H
 #include <locale.h>
 #endif
 
-MODULE_ID("$Id: lib_setup.c,v 1.132 2010/12/20 00:26:35 tom Exp $")
+MODULE_ID("$Id: lib_setup.c,v 1.164 2015/06/27 18:10:55 tom Exp $")
 
 /****************************************************************************
  *
@@ -225,6 +222,7 @@ NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f)
 {
     T((T_CALLED("use_env(%p,%d)"), (void *) SP_PARM, (int) f));
 #if NCURSES_SP_FUNCS
+    START_TRACE();
     if (IsPreScreen(SP_PARM)) {
        SP_PARM->_use_env = f;
     }
@@ -234,14 +232,39 @@ 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)
 {
     T((T_CALLED("use_env(%d)"), (int) f));
+    START_TRACE();
     _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)
@@ -260,7 +283,7 @@ _nc_get_screensize(SCREEN *sp,
     TCB = (TERMINAL_CONTROL_BLOCK *) termp;
 
     my_tabsize = TCB->info.tabsize;
-    TCB->drv->size(TCB, linep, colp);
+    TCB->drv->td_size(TCB, linep, colp);
 
 #if USE_REENTRANT
     if (sp != 0) {
@@ -281,7 +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__
@@ -289,14 +312,16 @@ _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));
        }
 #endif
 #if HAVE_SIZECHANGE
        /* try asking the OS */
-       if (isatty(cur_term->Filedes)) {
+       if (NC_ISATTY(cur_term->Filedes)) {
            STRUCT_WINSIZE size;
 
            errno = 0;
@@ -315,19 +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 */
@@ -384,7 +423,7 @@ _nc_update_screensize(SCREEN *sp)
 
     assert(sp != 0);
 
-    CallDriver_2(sp, getsize, &old_lines, &old_cols);
+    CallDriver_2(sp, td_getsize, &old_lines, &old_cols);
 
 #else
     TERMINAL *termp = cur_term;
@@ -399,10 +438,12 @@ _nc_update_screensize(SCREEN *sp)
      * We're doing it this way because those functions belong to the upper
      * ncurses library, while this resides in the lower terminfo library.
      */
-    if (sp != 0
-       && sp->_resize != 0) {
-       if ((new_lines != old_lines) || (new_cols != old_cols))
+    if (sp != 0 && sp->_resize != 0) {
+       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;
     }
 }
@@ -414,23 +455,7 @@ _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
+#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP
 /*
  * Return 1 if entry found, 0 if not found, -1 if database not accessible,
  * just like tgetent().
@@ -467,7 +492,7 @@ _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;
@@ -481,8 +506,8 @@ _nc_tinfo_cmdch(TERMINAL * termp, char proto)
     if ((tmp = getenv("CC")) != 0 && strlen(tmp) == 1) {
        CC = *tmp;
        for_each_string(i, &(termp->type)) {
-           for (tmp = termp->type.Strings[i]; *tmp; tmp++) {
-               if (*tmp == proto)
+           for (tmp = termp->type.Strings[i]; tmp && *tmp; tmp++) {
+               if (UChar(*tmp) == proto)
                    *tmp = CC;
            }
        }
@@ -520,7 +545,9 @@ NCURSES_EXPORT(int)
 _nc_unicode_locale(void)
 {
     int result = 0;
-#if HAVE_LANGINFO_CODESET
+#if defined(__MINGW32__) && USE_WIDEC_SUPPORT
+    result = 1;
+#elif HAVE_LANGINFO_CODESET
     char *env = nl_langinfo(CODESET);
     result = !strcmp(env, "UTF-8");
     T(("_nc_unicode_locale(%s) ->%d", env, result));
@@ -546,25 +573,32 @@ _nc_unicode_locale(void)
 NCURSES_EXPORT(int)
 _nc_locale_breaks_acs(TERMINAL * termp)
 {
-    char *env;
+    const char *env_name = "NCURSES_NO_UTF8_ACS";
+    const char *env;
+    int value;
+    int result = 0;
 
-    if ((env = getenv("NCURSES_NO_UTF8_ACS")) != 0) {
-       return atoi(env);
+    T((T_CALLED("_nc_locale_breaks_acs:%d"), result));
+    if (getenv(env_name) != 0) {
+       result = _nc_getenv_num(env_name);
+    } else if ((value = tigetnum("U8")) >= 0) {
+       result = value;         /* use extension feature */
     } else if ((env = getenv("TERM")) != 0) {
-       if (strstr(env, "linux"))
-           return 1;           /* always broken */
-       if (strstr(env, "screen") != 0
-           && ((env = getenv("TERMCAP")) != 0
-               && strstr(env, "screen") != 0)
-           && strstr(env, "hhII00") != 0) {
+       if (strstr(env, "linux")) {
+           result = 1;         /* always broken */
+       } else if (strstr(env, "screen") != 0
+                  && ((env = getenv("TERMCAP")) != 0
+                      && strstr(env, "screen") != 0)
+                  && strstr(env, "hhII00") != 0) {
            if (CONTROL_N(enter_alt_charset_mode) ||
                CONTROL_O(enter_alt_charset_mode) ||
                CONTROL_N(set_attributes) ||
-               CONTROL_O(set_attributes))
-               return 1;
+               CONTROL_O(set_attributes)) {
+               result = 1;
+           }
        }
     }
-    return 0;
+    returnCode(result);
 }
 
 NCURSES_EXPORT(int)
@@ -572,7 +606,7 @@ 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;
@@ -602,7 +636,11 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
     if (tname == 0) {
        tname = getenv("TERM");
        if (tname == 0 || *tname == '\0') {
+#ifdef USE_TERM_DRIVER
+           tname = "unknown";
+#else
            ret_error0(TGETENT_ERR, "TERM environment variable not set.\n");
+#endif
        }
     }
 
@@ -618,7 +656,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
      * Allow output redirection.  This is what SVr3 does.  If stdout is
      * directed to a file, screen updates go to standard error.
      */
-    if (Filedes == STDOUT_FILENO && !isatty(Filedes))
+    if (Filedes == STDOUT_FILENO && !NC_ISATTY(Filedes))
        Filedes = STDERR_FILENO;
 
     /*
@@ -645,9 +683,14 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
        && _nc_name_match(termp->type.term_names, tname, "|")) {
        T(("reusing existing terminal information and mode-settings"));
        code = OK;
+#ifdef USE_TERM_DRIVER
+       TCB = (TERMINAL_CONTROL_BLOCK *) termp;
+#endif
     } else {
 #ifdef USE_TERM_DRIVER
-       termp = (TERMINAL *) typeCalloc(TERMINAL_CONTROL_BLOCK, 1);
+       TERMINAL_CONTROL_BLOCK *my_tcb;
+       my_tcb = typeCalloc(TERMINAL_CONTROL_BLOCK, 1);
+       termp = &(my_tcb->term);
 #else
        termp = typeCalloc(TERMINAL, 1);
 #endif
@@ -663,11 +706,11 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
            termp->Filedes = (short) Filedes;
            termp->_termname = strdup(tname);
        } else {
-           ret_error0(TGETENT_ERR,
+           ret_error0(errret ? *errret : TGETENT_ERR,
                       "Could not find any driver to handle this terminal.\n");
        }
 #else
-#if USE_DATABASE || USE_TERMCAP
+#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP
        status = _nc_setup_tinfo(tname, &termp->type);
 #else
        status = TGETENT_NO;
@@ -678,7 +721,7 @@ 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;
            }
        }
@@ -688,11 +731,11 @@ 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
 
@@ -702,7 +745,7 @@ 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
@@ -710,7 +753,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
         * _nc_setupscreen().  Do it now anyway, so we can initialize the
         * baudrate.
         */
-       if (isatty(Filedes)) {
+       if (NC_ISATTY(Filedes)) {
            def_prog_mode();
            baudrate();
        }
@@ -721,7 +764,7 @@ TINFO_SETUP_TERM(TERMINAL ** tp,
 #ifdef USE_TERM_DRIVER
     *tp = termp;
     NCURSES_SP_NAME(set_curterm) (sp, termp);
-    TCB->drv->init(TCB);
+    TCB->drv->td_init(TCB);
 #else
     sp = SP;
 #endif
@@ -736,10 +779,20 @@ 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 {
+           del_curterm(termp);
+           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);
@@ -792,10 +845,10 @@ NCURSES_EXPORT(int)
 _nc_setupterm(NCURSES_CONST char *tname,
              int Filedes,
              int *errret,
-             bool reuse)
+             int reuse)
 {
     int res;
-    TERMINAL *termp;
+    TERMINAL *termp = 0;
     res = TINFO_SETUP_TERM(&termp, tname, Filedes, errret, reuse);
     if (ERR != res)
        NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN_PRE, termp);
@@ -812,5 +865,6 @@ _nc_setupterm(NCURSES_CONST char *tname,
 NCURSES_EXPORT(int)
 setupterm(NCURSES_CONST char *tname, int Filedes, int *errret)
 {
+    START_TRACE();
     return _nc_setupterm(tname, Filedes, errret, FALSE);
 }