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/* $OpenBSD: terminal.c,v 1.14 2017/01/21 08:22:57 krw Exp $ */
/* $NetBSD: terminal.c,v 1.2 1997/10/10 16:34:05 lukem Exp $ */
/*
* Copyright (c) 1983-2003, Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* + Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* + Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* + Neither the name of the University of California, San Francisco nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/select.h>
#include <err.h>
#include <stdarg.h>
#include <syslog.h>
#include <string.h>
#include "conf.h"
#include "hunt.h"
#include "server.h"
#define TERM_WIDTH 80 /* Assume terminals are 80-char wide */
/*
* cgoto:
* Move the cursor to the given position on the given player's
* terminal.
*/
void
cgoto(PLAYER *pp, int y, int x)
{
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
cgoto(pp, y, x);
for (pp = Monitor; pp < End_monitor; pp++)
cgoto(pp, y, x);
return;
}
if (x == pp->p_curx && y == pp->p_cury)
return;
sendcom(pp, MOVE, y, x);
pp->p_cury = y;
pp->p_curx = x;
}
/*
* outch:
* Put out a single character.
*/
void
outch(PLAYER *pp, char ch)
{
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
outch(pp, ch);
for (pp = Monitor; pp < End_monitor; pp++)
outch(pp, ch);
return;
}
if (++pp->p_curx >= TERM_WIDTH) {
pp->p_curx = 0;
pp->p_cury++;
}
(void) putc(ch, pp->p_output);
}
/*
* outstr:
* Put out a string of the given length.
*/
void
outstr(PLAYER *pp, char *str, int len)
{
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
outstr(pp, str, len);
for (pp = Monitor; pp < End_monitor; pp++)
outstr(pp, str, len);
return;
}
pp->p_curx += len;
pp->p_cury += (pp->p_curx / TERM_WIDTH);
pp->p_curx %= TERM_WIDTH;
while (len--)
(void) putc(*str++, pp->p_output);
}
/*
* outat:
* draw a string at a location on the client.
* Cursor doesn't move if the location is invalid
*/
void
outyx(PLAYER *pp, int y, int x, const char *fmt, ...)
{
va_list ap;
char buf[BUFSIZ];
int len;
va_start(ap, fmt);
len = vsnprintf(buf, sizeof(buf), fmt, ap);
va_end(ap);
if (len == -1)
len = 0;
if (len >= (int)sizeof(buf))
len = sizeof(buf) - 1;
if (y >= 0 && x >= 0)
cgoto(pp, y, x);
if (len > 0)
outstr(pp, buf, len);
}
/*
* clrscr:
* Clear the screen, and reset the current position on the screen.
*/
void
clrscr(PLAYER *pp)
{
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
clrscr(pp);
for (pp = Monitor; pp < End_monitor; pp++)
clrscr(pp);
return;
}
sendcom(pp, CLEAR);
pp->p_cury = 0;
pp->p_curx = 0;
}
/*
* ce:
* Clear to the end of the line
*/
void
ce(PLAYER *pp)
{
sendcom(pp, CLRTOEOL);
}
/*
* sendcom:
* Send a command to the given user
*/
void
sendcom(PLAYER *pp, int command, ...)
{
va_list ap;
char buf[3];
int len = 0;
va_start(ap, command);
buf[len++] = command;
switch (command & 0377) {
case MOVE:
buf[len++] = va_arg(ap, int);
buf[len++] = va_arg(ap, int);
break;
case ADDCH:
case READY:
case ENDWIN:
buf[len++] = va_arg(ap, int);
break;
}
va_end(ap);
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
fwrite(buf, sizeof buf[0], len, pp->p_output);
for (pp = Monitor; pp < End_monitor; pp++)
fwrite(buf, sizeof buf[0], len, pp->p_output);
return;
} else
fwrite(buf, sizeof buf[0], len, pp->p_output);
}
/*
* sync:
* Flush the output buffer to the player
*/
void
flush(PLAYER *pp)
{
if (pp == ALL_PLAYERS) {
for (pp = Player; pp < End_player; pp++)
fflush(pp->p_output);
for (pp = Monitor; pp < End_monitor; pp++)
fflush(pp->p_output);
} else
fflush(pp->p_output);
}
void
logx(int prio, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
if (conf_syslog)
vsyslog(prio, fmt, ap);
else if (conf_logerr)
/* if (prio < LOG_NOTICE) */
vwarnx(fmt, ap);
va_end(ap);
}
void
logit(int prio, const char *fmt, ...)
{
va_list ap;
char fmtm[1024];
va_start(ap, fmt);
if (conf_syslog) {
strlcpy(fmtm, fmt, sizeof fmtm);
strlcat(fmtm, ": %m", sizeof fmtm);
vsyslog(prio, fmtm, ap);
} else if (conf_logerr)
/* if (prio < LOG_NOTICE) */
vwarn(fmt, ap);
va_end(ap);
}
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