1 files changed, 131 insertions, 0 deletions
diff --git a/lib/libcurses/lib_getstr.c b/lib/libcurses/lib_getstr.c
new file mode 100644
index 00000000000..5f4dbcd2b7c
--- /dev/null
+++ b/lib/libcurses/lib_getstr.c
@@ -0,0 +1,131 @@
+
+/***************************************************************************
+*                            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.       *
+*                                                                          *
+***************************************************************************/
+
+
+/*
+**	lib_getstr.c
+**
+**	The routine wgetstr().
+**
+*/
+
+#include "curses.priv.h"
+#include "unctrl.h"
+#include <string.h>
+
+int wgetnstr(WINDOW *win, char *str, int maxlen)
+{
+bool	oldnl, oldecho, oldraw, oldcbreak, oldkeypad;
+char	erasec;
+char	killc;
+char	*oldstr;
+int ch;
+  
+	T(("wgetnstr(%p,%p, %d) called", win, str, maxlen));
+
+	oldnl = SP->_nl;
+	oldecho = SP->_echo;
+	oldraw = SP->_raw;
+	oldcbreak = SP->_cbreak;
+	oldkeypad = win->_use_keypad;
+	nl();
+	noecho();
+	noraw();
+	cbreak();
+	keypad(win, TRUE);
+
+	erasec = erasechar();
+	killc = killchar();
+
+	oldstr = str;
+
+	if (is_wintouched(win) || (win->_flags & _HASMOVED))
+		wrefresh(win);
+
+	while ((ch = wgetch(win)) != ERR) {
+	        /*
+		 * Some terminals (the Wyse-50 is the most common) generate
+		 * a \n from the down-arrow key.  With this logic, it's the
+		 * user's choice whether to set kcud=\n for wgetch();
+		 * terminating *getstr() with \n should work either way.
+		 */
+		if (ch == '\n' || ch == '\r' || ch == KEY_DOWN)
+			break;
+	   	if (ch == erasec || ch == KEY_LEFT || ch == KEY_BACKSPACE) {
+			if (str > oldstr) {
+		    		str--;
+		    		if (oldecho == TRUE)
+			    		_nc_backspace(win);
+			}
+	 	} else if (ch == killc) {
+			while (str > oldstr) {
+			    	str--;
+		    		if (oldecho == TRUE)
+		    			_nc_backspace(win);
+			}
+		} else if (ch >= KEY_MIN
+			   || (maxlen >= 0 && str - oldstr >= maxlen)) {
+		    beep();
+		} else {
+			if (oldecho == TRUE) {
+			        char	*glyph = unctrl(ch);
+
+				mvwaddstr(curscr, win->_begy + win->_cury,
+				  	win->_begx + win->_curx, glyph);
+				waddstr(win, glyph);
+				_nc_outstr(glyph);
+				SP->_curscol += strlen(glyph);
+			} 
+			*str++ = ch;
+	   	}
+	}
+
+    	win->_curx = 0;
+	win->_flags &= ~_NEED_WRAP;
+    	if (win->_cury < win->_maxy)
+       		win->_cury++;
+	wrefresh(win);
+
+	if (oldnl == FALSE)
+	    nonl();
+
+	if (oldecho == TRUE)
+	    echo();
+
+	if (oldraw == TRUE)
+	    raw();
+
+	if (oldcbreak == FALSE)
+	    nocbreak();
+
+	if (oldkeypad == FALSE)
+		keypad(win, FALSE);
+
+	if (ch == ERR) {
+		*str = '\0';
+		return ERR;
+	}
+	*str = '\0';
+
+	T(("wgetnstr returns \"%s\"", _nc_visbuf(oldstr)));
+
+	return(OK);
+}