/* ARGSUSED */
int
intrflush(WINDOW *w, bool bf)
{
PTERMIOS(_prog)->c_lflag &= ~NOFLSH;
if (!bf)
PTERMIOS(_prog)->c_lflag |= NOFLSH;
return (__m_tty_set_prog_mode());
}
/* ARGSUSED */
int
meta(WINDOW *w, bool bf)
{
PTERMIOS(_prog)->c_cflag &= ~CSIZE;
PTERMIOS(_prog)->c_cflag |= bf ? CS8 : CS7;
if (__m_tty_set_prog_mode() == ERR)
return (ERR);
__m_screen->_flags &= ~S_USE_META;
if (bf) {
if (meta_on != NULL)
(void) TPUTS(meta_on, 1, __m_outc);
__m_screen->_flags |= S_USE_META;
} else if (meta_off != NULL) {
(void) TPUTS(meta_off, 1, __m_outc);
}
return (OK);
}
char
killchar(void)
{
char ch;
/*
* Refer to _shell instead of _prog, since _shell will
* correctly reflect the user's prefered settings, whereas
* _prog may not have been initialised if both input and
* output have been redirected.
*/
ch = (char)PTERMIOS(_shell)->c_cc[VKILL];
return (ch);
}
/*
* Restore the termios settings.
*/
int
__m_tty_set(struct termios *tp)
{
int fd;
int rval;
if (cur_term->_flags & __TERM_ISATTY_OUT) {
fd = cur_term->_ofd;
} else if (cur_term->_flags & __TERM_ISATTY_IN) {
fd = cur_term->_ifd;
} else {
return (OK);
}
if (memcmp(tp, &cur_term->_actual, sizeof (struct termios)) == 0)
return (OK);
*PTERMIOS(_actual) = *tp;
rval = tcsetattr(fd, TCSADRAIN, tp) == 0 ? OK : ERR;
return (rval);
}
int
reset_shell_mode(void)
{
return (__m_tty_set(PTERMIOS(_shell)));
}
int
def_prog_mode(void)
{
return (__m_tty_get(PTERMIOS(_prog)));
}
int
def_shell_mode(void)
{
return (__m_tty_get(PTERMIOS(_shell)));
}
int
__m_tty_set_prog_mode(void)
{
return (__m_tty_set(PTERMIOS(_prog)));
}
/*
* Set up terminal.
*
* Reads in the terminfo database pointed to by $TERMINFO env. var.
* for the given terminal, but does not set up the output virtualization
* structues used by CURSES. If the terminal name pointer is NULL,
* the $TERM env. var. is used for the terminal. All output is to
* the given file descriptor which is initialized for output.
*
* On error, if errret != NULL then setupterm() returns OK
* or ERR and stores a status value in the integer pointed to by
* errret. A status of 1 is normal, 0 means the terminal could
* not be found, and -1 means the terminfo database could not be
* found. If errret == NULL then setupterm() prints an error
* message upon and exit().
*
* On success, cur_term set to a terminfo structure and OK returned.
*/
int
__m_setupterm(char *termname, int ifd, int ofd, int *err_return)
{
int err_code = 1;
TERMINAL *old_term;
const char *err_msg;
/*
* It is possible to call setupterm() for multiple terminals,
* in which case we have to be able to restore cur_term in
* case of error.
*/
old_term = cur_term;
cur_term = (TERMINAL *) calloc(1, sizeof (*cur_term));
if (cur_term == NULL) {
err_code = -1;
goto error;
}
if (isatty(cur_term->_ifd = ifd))
cur_term->_flags |= __TERM_ISATTY_IN;
if (isatty(cur_term->_ofd = ofd))
cur_term->_flags |= __TERM_ISATTY_OUT;
cur_term->_shell = (void *) calloc(1, sizeof (struct termios));
cur_term->_prog = (void *) calloc(1, sizeof (struct termios));
cur_term->_save = (void *) calloc(1, sizeof (struct termios));
cur_term->_actual = (void *) calloc(1, sizeof (struct termios));
cur_term->_term = NULL;
cur_term->_names = NULL;
cur_term->_str_table = NULL;
(void) def_shell_mode();
(void) def_prog_mode();
(void) __m_tty_get(PTERMIOS(_actual)); /* Synch cached value */
#ifdef ONLCR
if ((PTERMIOS(_prog)->c_oflag & (OPOST | ONLCR)) == (OPOST | ONLCR))
#else
if (PTERMIOS(_prog)->c_oflag & OPOST)
#endif
cur_term->_flags |= __TERM_NL_IS_CRLF;
(void) restartterm(termname, ofd, &err_code);
error:
switch (err_code) {
case -1:
err_msg = e_terminal;
break;
case 0:
err_msg = e_unknown;
break;
case 1:
break;
case 2:
err_msg = e_pathmax;
err_code = -1;
break;
}
if (err_return != NULL) {
*err_return = err_code;
if (err_code == 1) {
err_code = OK;
} else {
err_code = ERR;
free(cur_term);
cur_term = old_term;
}
} else if (err_code != 1) {
(void) fprintf(stderr, err_msg, termname);
exit(1);
}
return (err_code);
}
/*
* Create a new terminal screen. Used if a program is going to be sending
* output to more than one terminal. It returns a SCREEN* for the terminal.
* The parameters are a terminal name, output FILE*, and input FILE*. If
* the terminal name is null then $TERM is used. The program must also
* call endwin() for each terminal being used before exiting from curses.
* If newterm() is called more than once for the same terminal, the first
* terminal referred to must be the last one for which endwin() is called.
*/
SCREEN *
newterm(char *term, FILE *out_fp, FILE *in_fp)
{
WINDOW *w;
t_wide_io *wio;
SCREEN *sp, *osp;
int i, n, y, errret;
/*
* Input stream should be unbuffered so that m_tfgetc() works
* correctly on BSD and SUN systems.
*/
(void) setvbuf(in_fp, (char *) 0, _IONBF, BUFSIZ);
#if 0
/*
* Not sure whether we really want to concern ourselves with the output
* buffer scheme. Might be best to leave it upto the application to
* deal with buffer schemes and when to perform flushes.
*
* MKS Vi uses MKS Curses and so must support the ability to switch in
* and out of Curses mode when switching from Vi to Ex and back.
* Problem is that in Vi mode you would prefer full buffered output to
* give updates a smoother appearance and Ex mode you require line
* buffered in order to see prompts and messages.
*/
(void) setvbuf(out_fp, (char *) 0, _IOLBF, BUFSIZ);
#endif
errno = 0;
if (__m_setupterm(term, fileno(in_fp), fileno(out_fp), &errret)
== ERR) {
switch (errret) {
case -1:
errno = ENOMEM;
break;
case 2:
errno = ENAMETOOLONG;
break;
case 0:
default:
errno = ENOENT;
break;
}
goto error1;
}
if (__m_doupdate_init())
goto error1;
if ((sp = (SCREEN *) calloc(1, sizeof (*sp))) == NULL)
goto error1;
sp->_kfd = -1;
sp->_if = in_fp;
sp->_of = out_fp;
sp->_term = cur_term;
sp->_unget._size = __m_decode_init((t_decode **) &sp->_decode);
/*
* Maximum length of a multbyte key sequence, including
* multibyte characters and terminal function keys.
*/
if (sp->_unget._size < (M_TYPEAHEAD_SIZE + MB_LEN_MAX))
sp->_unget._size = M_TYPEAHEAD_SIZE + MB_LEN_MAX;
sp->_unget._stack = calloc((size_t) sp->_unget._size,
sizeof (*sp->_unget._stack));
if (sp->_unget._stack == NULL)
goto error2;
if ((wio = (t_wide_io *) calloc(1, sizeof (*wio))) == NULL)
goto error2;
/* Setup wide input for XCurses. */
wio->get = (int (*)(void *)) wgetch;
wio->unget = __xc_ungetc;
wio->reset = __xc_clearerr;
wio->iserror = __xc_ferror;
wio->iseof = __xc_feof;
sp->_in = wio;
if (assume_one_line) {
/* Assume only one line. */
lines = 1;
/* Disable capabilities that assume more than one line. */
clear_screen = clr_eos = cursor_up = cursor_down = NULL;
cursor_home = cursor_to_ll = cursor_address = NULL;
row_address = parm_up_cursor = parm_down_cursor = NULL;
/* Re-evaluate the cursor motion costs. */
__m_mvcur_cost();
/* Reset flag for subsequent calls to newterm(). */
assume_one_line = FALSE;
}
if ((sp->_curscr = newwin(lines, columns, 0, 0)) == NULL)
goto error2;
if ((sp->_newscr = newwin(lines, columns, 0, 0)) == NULL)
goto error2;
#if defined(_LP64)
sp->_hash = (unsigned int *) calloc(lines, sizeof (*sp->_hash));
#else
sp->_hash = (unsigned long *) calloc(lines, sizeof (*sp->_hash));
#endif
if (sp->_hash == NULL)
goto error2;
if (0 <= __m_slk_format && __m_slk_init(sp, __m_slk_format) == ERR) {
goto error2;
}
/*
* doupdate() will perform the final screen preparations like
* enter_ca_mode, reset_prog_mode() (to assert the termios
* changes), etc.
*/
sp->_flags |= S_ENDWIN;
#ifdef SIGTSTP
(void) signal(SIGTSTP, tstp);
#endif
/* Assert that __m_screen is set to the new terminal. */
osp = set_term(sp);
/* Disable echo in tty driver, Curses does software echo. */
PTERMIOS(_prog)->c_lflag &= ~ECHO;
/* Enable mappnig of cr -> nl on input and nl -> crlf on output. */
PTERMIOS(_prog)->c_iflag |= ICRNL;
PTERMIOS(_prog)->c_oflag |= OPOST;
#ifdef ONLCR
PTERMIOS(_prog)->c_oflag |= ONLCR;
#endif
cur_term->_flags |= __TERM_NL_IS_CRLF;
#ifdef TAB0
/* Use real tabs. */
PTERMIOS(_prog)->c_oflag &= ~(TAB1|TAB2|TAB3);
#endif
/*
* Default to 'cbreak' mode as per
* test /tset/CAPIxcurses/fcbreak/fcbreak1{4}
*/
cur_term->_flags &= ~__TERM_HALF_DELAY;
/*
* Default to 'idcok' mode as per
* test /tset/CAPIxcurses/fidcok/fidcok1{3}
*/
__m_screen->_flags |= S_INS_DEL_CHAR;
PTERMIOS(_prog)->c_cc[VMIN] = 1;
PTERMIOS(_prog)->c_cc[VTIME] = 0;
PTERMIOS(_prog)->c_lflag &= ~ICANON;
(void) __m_tty_set_prog_mode();
(void) __m_set_echo(1);
(void) typeahead(fileno(in_fp));
(void) __m_slk_clear(1);
n = rip.top - rip.bottom;
if (stdscr == NULL) {
stdscr = newwin(lines - n, 0, rip.top, 0);
if (stdscr == NULL)
goto error3;
}
/*
* Create and initialise ripped off line windows.
* It is the application's responsiblity to free the
* windows when the application terminates.
*/
for (i = 0; i < n; ++i) {
if (rip.line[i].created)
continue;
y = rip.line[i].dy;
if (y < 0)
y += lines;
w = newwin(1, 0, y, 0);
if (rip.line[i].init != (int (*)(WINDOW *, int)) 0)
(void) (*rip.line[i].init)(w, columns);
rip.line[i].created = 1;
}
LINES = stdscr->_maxy = sp->_curscr->_maxy - n;
return (sp);
error3:
(void) set_term(osp);
error2:
delscreen(sp);
error1:
return (NULL);
}
void
noqiflush(void)
{
PTERMIOS(_prog)->c_lflag |= NOFLSH;
(void) __m_tty_set_prog_mode();
}
int
resetty(void)
{
return (__m_tty_set(PTERMIOS(_save)));
}
int
savetty(void)
{
return (__m_tty_get(PTERMIOS(_save)));
}