Install ncurses as -lcurses and <curses.h>

Install BSD curses library as -locurses and <ocurses.h>

1 files changed, 322 insertions, 0 deletions

diff --git a/lib/libcurses/lib_raw.c b/lib/libcurses/lib_raw.c
new file mode 100644
index 00000000000..1971f9651bf
--- /dev/null
+++ b/lib/libcurses/lib_raw.c
@@ -0,0 +1,322 @@
+
+/***************************************************************************
+*                            COPYRIGHT NOTICE                              *
+****************************************************************************
+*                ncurses is copyright (C) 1992-1995                        *
+*                          Zeyd M. Ben-Halim                               *
+*                          zmbenhal@netcom.com                             *
+*                          Eric S. Raymond                                 *
+*                          esr@snark.thyrsus.com                           *
+*                                                                          *
+*        Permission is hereby granted to reproduce and distribute ncurses  *
+*        by any means and for any fee, whether alone or as part of a       *
+*        larger distribution, in source or in binary form, PROVIDED        *
+*        this notice is included with any such distribution, and is not    *
+*        removed from any of its header files. Mention of ncurses in any   *
+*        applications linked with it is highly appreciated.                *
+*                                                                          *
+*        ncurses comes AS IS with no warranty, implied or expressed.       *
+*                                                                          *
+***************************************************************************/
+
+
+/*
+ *	raw.c
+ *
+ *	Routines:
+ *		raw()
+ *		echo()
+ *		nl()
+ *		cbreak()
+ *		noraw()
+ *		noecho()
+ *		nonl()
+ *		nocbreak()
+ *		qiflush()
+ *		noqiflush()
+ *		intrflush()
+ *
+ */
+
+#include "curses.priv.h"
+#include "term.h"	/* cur_term */
+
+/* 
+ * COOKED_INPUT defines the collection of input mode bits to be
+ * cleared when entering raw mode, then re-set by noraw().  
+ *
+ * We used to clear ISTRIP and INPCK when going to raw mode.  Keith
+ * Bostic says that's wrong, because those are hardware bits that the
+ * user has to get right in his/her initial environment -- he says
+ * curses can't do any good by clearing these, and may do harm.  In
+ * 1995's world of 8N1 connections over error-correcting modems, all
+ * the parity-check stuff is pretty nearly irrelevant anyway.
+ *
+ * What's supposed to happen when noraw() executes has never been very
+ * well-defined.  Yes, it should reset ISIG/ICANON/OPOST (historical
+ * practice is for it to attempt to take the driver back to cooked
+ * mode, rather going to some half-baked cbreak-like intermediate
+ * level).
+ *
+ * We make a design choice here to turn off CR/LF translation a la BSD
+ * when raw() is enabled, on the theory that a programmer requesting
+ * raw() ideally wants an 8-bit data stream that's been messed with as
+ * little as possible.  The man pages document this.
+ *
+ * We originally opted for the simplest way to handle noraw(); just set all
+ * the flags we cleared.  Unfortunately, having noraw() set IGNCR
+ * turned out to be too painful.  So raw() now clears the COOKED_INPUT
+ * flags, but also clears (ICRNL|INLCR|IGNCR) which noraw() doesn't
+ * restore.
+ *
+ * Unfortunately, this means noraw() may still force some COOKED_INPUT
+ * flags on that the user had initially cleared via stty.  It'll all
+ * come out in the wash when endwin() restores the user's original
+ * input bits (we hope...)
+ *
+ */
+#define COOKED_INPUT	(IXON|IGNBRK|BRKINT|PARMRK)
+
+int raw(void)
+{
+	T(("raw() called"));
+
+	SP->_raw = TRUE;
+	SP->_cbreak = TRUE;
+
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag &= ~(ICANON|ISIG|IEXTEN);
+	cur_term->Nttyb.c_iflag &= ~(COOKED_INPUT|ICRNL|INLCR|IGNCR);
+	cur_term->Nttyb.c_oflag &= ~(OPOST);
+	cur_term->Nttyb.c_cc[VMIN] = 1;
+	cur_term->Nttyb.c_cc[VTIME] = 0;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags |= RAW;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+int cbreak(void)
+{
+	T(("cbreak() called"));
+
+	SP->_cbreak = TRUE;
+
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag &= ~ICANON; 
+	cur_term->Nttyb.c_lflag |= ISIG;
+	cur_term->Nttyb.c_cc[VMIN] = 1;
+	cur_term->Nttyb.c_cc[VTIME] = 0;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags |= CBREAK;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+int echo(void)
+{
+	T(("echo() called"));
+
+	SP->_echo = TRUE;
+    
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag |= ECHO;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags |= ECHO;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+
+int nl(void)
+{
+	T(("nl() called"));
+
+	SP->_nl = TRUE;
+
+#ifdef TERMIOS
+	/* the code used to set IXON|IXOFF here, Ghod knows why... */
+	cur_term->Nttyb.c_iflag |= ICRNL;
+	cur_term->Nttyb.c_oflag |= OPOST|ONLCR;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags |= CRMOD;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+
+int qiflush(void)
+{
+	T(("qiflush() called"));
+
+	/*
+	 * Note: this implementation may be wrong.  See the comment under
+	 * intrflush().
+	 */
+
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag &= ~(NOFLSH);
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	return ERR;
+#endif
+}
+
+
+int noraw(void)
+{
+	T(("noraw() called"));
+
+	SP->_raw = FALSE;
+	SP->_cbreak = FALSE;
+
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag |= ISIG|ICANON|IEXTEN;
+	cur_term->Nttyb.c_iflag |= COOKED_INPUT;
+	cur_term->Nttyb.c_oflag |= OPOST;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags &= ~(RAW|CBREAK);
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+
+}
+
+
+int nocbreak(void)
+{
+	T(("nocbreak() called"));
+
+	SP->_cbreak = 0;
+	
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag |= ICANON;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else 
+	cur_term->Nttyb.sg_flags &= ~CBREAK;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+int noecho(void)
+{
+	T(("noecho() called"));
+
+	SP->_echo = FALSE;
+	
+#ifdef TERMIOS
+	/* 
+	 * Turn off ECHONL to avoid having \n still be echoed when
+	 * cooked mode is in effect (that is, ICANON is on).
+	 */
+	cur_term->Nttyb.c_lflag &= ~(ECHO|ECHONL);
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags &= ~ECHO;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+
+int nonl(void)
+{
+	T(("nonl() called"));
+
+	SP->_nl = FALSE;
+	
+#ifdef TERMIOS
+	cur_term->Nttyb.c_iflag &= ~ICRNL;
+	cur_term->Nttyb.c_oflag &= ~ONLCR;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	cur_term->Nttyb.sg_flags &= ~CRMOD;
+	stty(cur_term->Filedes, &cur_term->Nttyb);
+	return OK;
+#endif
+}
+
+int noqiflush(void)
+{
+	T(("noqiflush() called"));
+
+	/*
+	 * Note: this implementation may be wrong.  See the comment under
+	 * intrflush().
+	 */
+
+#ifdef TERMIOS
+	cur_term->Nttyb.c_lflag |= NOFLSH;
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	return ERR;
+#endif
+}
+
+int intrflush(WINDOW *win, bool flag)
+{
+	T(("intrflush() called"));
+
+	/*
+	 * This call does the same thing as the qiflush()/noqiflush()
+	 * pair.  We know for certain that SVr3 intrflush() tweaks the
+	 * NOFLSH bit; on the other hand, the match (in the SVr4 man
+	 * pages) between the language describing NOFLSH in termio(7)
+	 * and the language describing qiflush()/noqiflush() in
+	 * curs_inopts(3x) is too exact to be coincidence.
+	 */
+
+#ifdef TERMIOS
+	if (flag)
+		cur_term->Nttyb.c_lflag &= ~(NOFLSH);
+	else
+		cur_term->Nttyb.c_lflag |= (NOFLSH);
+	if((tcsetattr(cur_term->Filedes, TCSANOW, &cur_term->Nttyb)) == -1)
+		return ERR;
+	else
+		return OK;
+#else
+	return ERR;
+#endif
+}
+