Add ncurses 6.4

third_party/ncurses/home_terminfo.c

@@ -0,0 +1,67 @@
+/****************************************************************************
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1998-2012,2016 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            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Thomas E. Dickey                                                *
+ ****************************************************************************/
+
+/*
+ *	home_terminfo.c -- return the $HOME/.terminfo string, expanded
+ */
+
+#include "curses.priv.h"
+#include "tic.h"
+
+MODULE_ID("$Id: home_terminfo.c,v 1.17 2020/02/02 23:34:34 tom Exp $")
+
+/* ncurses extension...fall back on user's private directory */
+
+#define MyBuffer _nc_globals.home_terminfo
+
+NCURSES_EXPORT(char *)
+_nc_home_terminfo(void)
+{
+    char *result = 0;
+#if USE_HOME_TERMINFO
+    if (use_terminfo_vars()) {
+
+	if (MyBuffer == 0) {
+	    char *home;
+
+	    if ((home = getenv("HOME")) != 0) {
+		size_t want = (strlen(home) + sizeof(PRIVATE_INFO));
+		TYPE_MALLOC(char, want, MyBuffer);
+		_nc_SPRINTF(MyBuffer, _nc_SLIMIT(want) PRIVATE_INFO, home);
+	    }
+	}
+	result = MyBuffer;
+    }
+#endif
+    return result;
+}