X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Ftinfo_driver.c;h=ac4f5ad9457935946219adccd97ee845b2bba943;hp=8e2f74f50c7580383c7df0a07a126ac1bd384e0d;hb=173dd870810c8b85baa31f9a272d15f96a8f9ff4;hpb=cc0205ede8ab81605ec83e7f1ac9ec33e9328a40;ds=sidebyside

diff --git a/ncurses/tinfo/tinfo_driver.c b/ncurses/tinfo/tinfo_driver.c
index 8e2f74f5..ac4f5ad9 100644
--- a/ncurses/tinfo/tinfo_driver.c
+++ b/ncurses/tinfo/tinfo_driver.c
@@ -50,7 +50,7 @@
 # endif
 #endif
 
-MODULE_ID("$Id: tinfo_driver.c,v 1.19 2012/06/30 22:01:10 tom Exp $")
+MODULE_ID("$Id: tinfo_driver.c,v 1.23 2012/07/22 00:45:34 tom Exp $")
 
 /*
  * SCO defines TIOCGSIZE and the corresponding struct.  Other systems (SunOS,
@@ -342,14 +342,18 @@ drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
 {
     SCREEN *sp;
     bool useEnv = TRUE;
+    bool useTioctl = TRUE;
 
     AssertTCB();
     sp = TCB->csp;		/* can be null here */
 
     if (sp) {
 	useEnv = sp->_use_env;
-    } else
+	useTioctl = sp->_use_tioctl;
+    } else {
 	useEnv = _nc_prescreen.use_env;
+	useTioctl = _nc_prescreen.use_tioctl;
+    }
 
     /* figure out the size of the screen */
     T(("screen size: terminfo lines = %d columns = %d", lines, columns));
@@ -357,7 +361,7 @@ drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
     *linep = (int) lines;
     *colp = (int) columns;
 
-    if (useEnv) {
+    if (useEnv || useTioctl) {
 	int value;
 
 #ifdef __EMX__
@@ -365,7 +369,9 @@ drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
 	    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));
 	}
@@ -394,19 +400,33 @@ drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
 	}
 #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 (useEnv) {
+	    if (useTioctl) {
+		/*
+		 * 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 */