freebsd-dev/lib/libncurses/lib_instr.c

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/***************************************************************************
* 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_instr.c
**
** The routine winnstr().
**
*/
#include "curses.priv.h"
int winnstr(WINDOW *win, char *str, int n)
{
int i, row, col;
T(("winnstr(%p,%p,%d) called", win, str, n));
getyx(win, row, col);
if (n < 0)
n = win->_maxx - win->_curx + 1;
for (i = 0; i < n;) {
str[i++] = TextOf(win->_line[row][col]);
if (++col > win->_maxx) {
col = 0;
if (++row > win->_maxy)
break;
}
}
str[i] = '\0'; /* SVr4 does not seem to count the null */
return (i);
}