ncurses 5.0

[ncurses.git] / ncurses / tinfo / lib_kernel.c

diff --git a/ncurses/tinfo/lib_kernel.c b/ncurses/tinfo/lib_kernel.c
new file mode 100644 (file)
index 0000000..3c8c88e
--- /dev/null
+++ b/ncurses/tinfo/lib_kernel.c
@@ -0,0 +1,130 @@
+/****************************************************************************
+ * Copyright (c) 1998 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ ****************************************************************************/
+
+
+/*
+ *     lib_kernel.c
+ *
+ *     Misc. low-level routines:
+ *             erasechar()
+ *             killchar()
+ *             flushinp()
+ *
+ * The baudrate() and delay_output() functions could logically live here,
+ * but are in other modules to reduce the static-link size of programs
+ * that use only these facilities.
+ */
+
+#include <curses.priv.h>
+#include <term.h>      /* cur_term */
+
+MODULE_ID("$Id: lib_kernel.c,v 1.19 1998/12/20 00:18:45 tom Exp $")
+
+/*
+ *     erasechar()
+ *
+ *     Return erase character as given in cur_term->Ottyb.
+ *
+ */
+
+char
+erasechar(void)
+{
+       T((T_CALLED("erasechar()")));
+
+       if (cur_term != 0) {
+#ifdef TERMIOS
+               returnCode(cur_term->Ottyb.c_cc[VERASE]);
+#else
+               returnCode(cur_term->Ottyb.sg_erase);
+#endif
+       }
+       returnCode(ERR);
+}
+
+
+
+/*
+ *     killchar()
+ *
+ *     Return kill character as given in cur_term->Ottyb.
+ *
+ */
+
+char
+killchar(void)
+{
+       T((T_CALLED("killchar()")));
+
+       if (cur_term != 0) {
+#ifdef TERMIOS
+               returnCode(cur_term->Ottyb.c_cc[VKILL]);
+#else
+               returnCode(cur_term->Ottyb.sg_kill);
+#endif
+       }
+       returnCode(ERR);
+}
+
+
+
+/*
+ *     flushinp()
+ *
+ *     Flush any input on cur_term->Filedes
+ *
+ */
+
+int flushinp(void)
+{
+       T((T_CALLED("flushinp()")));
+
+       if (cur_term != 0) {
+#ifdef TERMIOS
+               tcflush(cur_term->Filedes, TCIFLUSH);
+#else
+               errno = 0;
+               do {
+                   ioctl(cur_term->Filedes, TIOCFLUSH, 0);
+               } while
+                   (errno == EINTR);
+#endif
+               if (SP) {
+                       SP->_fifohead = -1;
+                       SP->_fifotail = 0;
+                       SP->_fifopeek = 0;
+               }
+               returnCode(OK);
+       }
+       returnCode(ERR);
+}