/*
* term_ALDL_scroll: should be used for scrolling if the term has AL and DL
* by setting the term_scroll function to it
*/
static int
term_ALDL_scroll(int line1, int line2, int n)
{
int i;
if (n > 0)
{
term_move_cursor(0, line1);
for (i = 0; i < n; i++)
tputs_x(DL);
term_move_cursor(0, line2 - n + 1);
for (i = 0; i < n; i++)
tputs_x(AL);
}
else if (n < 0)
{
n = -n;
term_move_cursor(0, line2-n+1);
for (i = 0; i < n; i++)
tputs_x(DL);
term_move_cursor(0, line1);
for (i = 0; i < n; i++)
tputs_x(AL);
}
return (0);
}
/*
* term_CS_scroll: should be used if the terminal has the CS capability by
* setting term_scroll equal to it
*/
static int
term_CS_scroll(int line1, int line2, int n)
{
int i;
u_char *thing;
if (n > 0)
thing = UP(SF ? SF : NL);
else if (n < 0)
{
if (SR)
thing = UP(SR);
else
return 1;
}
else
return 0;
tputs_x(tgoto(CS, line2, line1)); /* shouldn't do this each time */
if (n < 0)
{
term_move_cursor(0, line1);
n = -n;
}
else
term_move_cursor(0, line2);
for (i = 0; i < n; i++)
tputs_x(CP(thing));
tputs_x(tgoto(CS, get_li() - 1, 0)); /* shouldn't do this each time */
return (0);
}
/*
* term_IMEI_insert: should be used for character inserts if the term has IM
* and EI by setting term_insert to it
*/
static int
term_IMEI_insert(u_int c)
{
tputs_x(IM);
putchar_x(c);
tputs_x(EI);
return (0);
}
/*
* term_reset: sets terminal attributed back to what they were before the
* program started
*/
void
term_reset(void)
{
tcsetattr(tty_des, TCSADRAIN, &oldb);
if (CS)
tputs_x(tgoto(CS, get_li() - 1, 0));
if (!use_termcap_enterexit() && TE)
tputs_x(TE);
term_move_cursor(0, get_li() - 1);
term_reset_flag = 1;
term_flush();
}
/*
* term_IC_insert: should be used for character inserts if the term has IC by
* setting term_insert to it.
*/
static int
term_IC_insert(u_int c)
{
tputs_x(IC);
putchar_x(c);
return (0);
}
void
term_beep(void)
{
tputs_x(BL);
Screen *screen = get_current_screen();
fflush(screen ? screen_get_fpout(screen) : stdout);
}
/*
* term_cont: sets the terminal back to IRCII stuff when it is restarted
* after a SIGSTOP. Somewhere, this must be used in a signal() call
*/
void
term_cont(int signo)
{
tcsetattr(tty_des, TCSADRAIN, &newb);
if (!use_termcap_enterexit() && TI)
tputs_x(TI);
on_signal_occurred(signo);
}
/*
* term_param_ALDL_scroll: Uses the parameterized version of AL and DL
*/
static int
term_param_ALDL_scroll(int line1, int line2, int n)
{
if (n > 0)
{
term_move_cursor(0, line1);
tputs_x(tgoto(DL, n, n));
term_move_cursor(0, line2 - n + 1);
tputs_x(tgoto(AL, n, n));
}
else if (n < 0)
{
n = -n;
term_move_cursor(0, line2-n+1);
tputs_x(tgoto(DL, n, n));
term_move_cursor(0, line1);
tputs_x(tgoto(AL, n, n));
}
return (0);
}
void
term_standout_off(void)
{
tputs_x(SE);
}
void
term_standout_on(void)
{
tputs_x(SO);
}
void
term_underline_off(void)
{
tputs_x(UE);
}
void
term_bold_off(void)
{
tputs_x(ME);
}
void
term_cr(void)
{
tputs_x(CR);
}
/* term_CE_clear_to_eol(): the clear to eol function, right? */
static int
term_CE_clear_to_eol(void)
{
tputs_x(CE);
return (0);
}
/*
* term_init: does all terminal initialization... reads termcap info, sets
* the terminal to CBREAK, no ECHO mode. Chooses the best of the terminal
* attributes to use .. for the version of this function that is called for
* wserv, we set the termial to RAW, no ECHO, so that all the signals are
* ignored.. fixes quite a few problems... -phone, jan 1993..
*/
void
term_init(void)
{
#ifndef STTY_ONLY
char bp[TGETENT_BUFSIZ],
*term,
*ptr;
if ((term = getenv("TERM")) == NULL)
{
fprintf(stderr, "irc: No TERM variable set!\n");
fprintf(stderr,"irc: You may still run irc by using the -d switch\n");
exit(1);
}
if (tgetent(bp, term) < 1)
{
fprintf(stderr, "irc: No termcap entry for %s.\n", term);
fprintf(stderr,"irc: You may still run irc by using the -d switch\n");
exit(1);
}
if ((co = tgetnum("co")) == -1)
co = 80;
if ((li = tgetnum("li")) == -1)
li = 24;
ptr = termcap;
/*
* Thanks to Max Bell ([email protected]) for info about TVI
* terminals and the sg terminal capability
*/
SG = tgetnum("sg");
CM = tgetstr("cm", &ptr);
CL = tgetstr("cl", &ptr);
if ((CM == NULL) ||
(CL == NULL))
{
fprintf(stderr, "This terminal does not have the necessary "
"capabilities to run IRCII\n"
"in full screen mode. You may still run "
"irc by using the -d switch\n");
exit(1);
}
if ((CR = tgetstr("cr", &ptr)) == NULL)
CR = "\r";
if ((NL = tgetstr("nl", &ptr)) == NULL)
NL = "\n";
if ((CE = tgetstr("ce", &ptr)) != NULL)
term_clear_to_eol_func = term_CE_clear_to_eol;
else
term_clear_to_eol_func = term_null_function;
TE = tgetstr("te", &ptr);
if (!use_termcap_enterexit() && TE && (TI = tgetstr("ti", &ptr)) != NULL )
tputs_x(TI);
else
TE = TI = NULL;
/* if ((ND = tgetstr("nd", &ptr)) || (ND = tgetstr("kr", &ptr))) */
if ((ND = tgetstr("nd", &ptr)) != NULL)
term_cursor_right_func = term_ND_cursor_right;
else
term_cursor_right_func = term_null_function;
/* if ((LE = tgetstr("le", &ptr)) || (LE = tgetstr("kl", &ptr))) */
if ((LE = tgetstr("le", &ptr)) != NULL)
term_cursor_left_func = term_LE_cursor_left;
else if (tgetflag("bs"))
term_cursor_left_func = term_BS_cursor_left;
else
term_cursor_left_func = term_null_function;
SF = tgetstr("sf", &ptr);
SR = tgetstr("sr", &ptr);
if ((CS = tgetstr("cs", &ptr)) != NULL)
term_scroll_func = term_CS_scroll;
else if ((AL = tgetstr("AL", &ptr)) && (DL = tgetstr("DL", &ptr)))
term_scroll_func = term_param_ALDL_scroll;
else if ((AL = tgetstr("al", &ptr)) && (DL = tgetstr("dl", &ptr)))
term_scroll_func = term_ALDL_scroll;
else
term_scroll_func = (int (*)(int, int, int)) term_null_function;
if ((IC = tgetstr("ic", &ptr)) != NULL)
term_insert_func = term_IC_insert;
else
{
if ((IM = tgetstr("im", &ptr)) && (EI = tgetstr("ei", &ptr)))
term_insert_func = term_IMEI_insert;
else
term_insert_func = (int (*)(u_int)) term_null_function;
}
if ((DC = tgetstr("dc", &ptr)) != NULL)
term_delete_func = term_DC_delete;
else
term_delete_func = term_null_function;
SO = tgetstr("so", &ptr);
SE = tgetstr("se", &ptr);
if ((SO == NULL) || (SE == NULL))
{
SO = CP(empty_string());
SE = CP(empty_string());
}
US = tgetstr("us", &ptr);
UE = tgetstr("ue", &ptr);
if ((US == NULL) || (UE == NULL))
{
US = CP(empty_string());
UE = CP(empty_string());
}
MD = tgetstr("md", &ptr);
ME = tgetstr("me", &ptr);
if ((MD == NULL) || (ME == NULL))
{
MD = CP(empty_string());
ME = CP(empty_string());
}
if ((BL = tgetstr("bl", &ptr)) == NULL)
BL = "\007";
#endif /* STTY_ONLY */
if (getenv("IRC_DEBUG")|| (tty_des = open("/dev/tty", O_RDWR, 0)) == -1)
tty_des = 0;
tcgetattr(tty_des, &oldb);
newb = oldb;
newb.c_lflag &= ~(ICANON | ECHO); /* set equivalent of
* CBREAK and no ECHO
*/
newb.c_cc[VMIN] = 1; /* read() satified after 1 char */
newb.c_cc[VTIME] = 0; /* No timer */
#ifndef _POSIX_VDISABLE
# define _POSIX_VDISABLE 0
#endif
newb.c_cc[VQUIT] = _POSIX_VDISABLE;
#ifdef VDISCARD
newb.c_cc[VDISCARD] = _POSIX_VDISABLE;
#endif
#ifdef VDSUSP
newb.c_cc[VDSUSP] = _POSIX_VDISABLE;
#endif
#ifdef VSUSP
newb.c_cc[VSUSP] = _POSIX_VDISABLE;
#endif
#ifndef STTY_ONLY
if (!use_flow_control())
newb.c_iflag &= ~IXON; /* No XON/XOFF */
#endif /* STTY_ONLY */
tcsetattr(tty_des, TCSADRAIN, &newb);
}
void
term_clear_screen(void)
{
tputs_x(CL);
}
void
term_move_cursor(int c, int r)
{
tputs_x(tgoto(CM, c, r));
}
/*
* term_DC_delete: should be used for character deletes if the term has DC by
* setting term_delete to it
*/
static int
term_DC_delete(void)
{
tputs_x(DC);
return (0);
}
void
term_newline(void)
{
tputs_x(NL);
}
/* term_ND_cursor_right: got it yet? */
static int
term_ND_cursor_right(void)
{
tputs_x(ND);
return (0);
}
void
term_bold_on(void)
{
tputs_x(MD);
}
/* term_LE_cursor_left: shouldn't you move on to something else? */
static int
term_LE_cursor_left(void)
{
tputs_x(LE);
return (0);
}
void more(FILE *fp) {
struct winsize w;
unsigned short sys_width;
unsigned short sys_height;
char cmdbuf[1];
int cmd;
int n;
int lines;
char *buf;
if (ioctl(STDERR_FILENO, TIOCGWINSZ, &w) == 0) {
if (w.ws_row > 0) {
sys_height = w.ws_row;
}
if (w.ws_col > 0) {
sys_width = w.ws_col;
}
}
if ((buf = readfile(fp->_file, MAX)) == NULL) {
perror("malloc");
return;
}
lines = countlines(buf);
putlines(buf, 0, sys_height - 1);
n = sys_height - 1;
while (n < lines) {
read(tty, cmdbuf, 1);
cmd = cmdchr(*cmdbuf);
if (cmd == CMD_QUIT) {
break;
} else if (cmd == CMD_PNEXT) {
putlines(buf, n, sys_height - 1);
n += sys_height - 1;
} else if (cmd == CMD_LNEXT) {
putline(buf, n++);
} else if (cmd == CMD_PPREV) {
tputs_x(CL);
if (n - (sys_height - 1) * 2 < 0) {
n = 0;
} else {
n -= (sys_height - 1) * 2;
}
putlines(buf, n, sys_height - 1);
n += sys_height - 1;
} else if (cmd == CMD_LPREV) {
if (n - sys_height < 0) {
continue;
}
tputs_x(SC); // save pos
tputs_x(HO); // set home pos
tputs_x(SR); // scroll revrse
putline(buf, n-- - sys_height);
tputs_x(RC); // restore pos
tputs_x(CE); // clr line
}
}
free(buf);
}
void
term_underline_on(void)
{
tputs_x(US);
}
