games/hunt/huntd/terminal.c

   1 /*-
   2  * Copyright (c) 1983-2003, Regents of the University of California.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the name of the University of California, San Francisco nor
  15  *    the names of its contributors may be used to endorse or promote
  16  *    products derived from this software without specific prior written
  17  *    permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  20  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  22  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  *
  31  * $OpenBSD: terminal.c,v 1.10 2008/06/20 13:08:44 ragge Exp $
  32  * $NetBSD: terminal.c,v 1.2 1997/10/10 16:34:05 lukem Exp $
  33  * $DragonFly: src/games/hunt/huntd/terminal.c,v 1.2 2008/09/04 16:12:51 swildner Exp $
  34  */
  35
  36 #include <stdarg.h>
  37 #include <syslog.h>
  38 #include <err.h>
  39 #include <string.h>
  40
  41 #include "hunt.h"
  42 #include "server.h"
  43 #include "conf.h"
  44
  45 #define TERM_WIDTH      80      /* Assume terminals are 80-char wide */
  46
  47 /*
  48  * cgoto:
  49  *      Move the cursor to the given position on the given player's
  50  *      terminal.
  51  */
  52 void
  53 cgoto(PLAYER *pp, int y, int x)
  54 {
  55
  56         if (pp == ALL_PLAYERS) {
  57                 for (pp = Player; pp < End_player; pp++)
  58                         cgoto(pp, y, x);
  59                 for (pp = Monitor; pp < End_monitor; pp++)
  60                         cgoto(pp, y, x);
  61                 return;
  62         }
  63
  64         if (x == pp->p_curx && y == pp->p_cury)
  65                 return;
  66
  67         sendcom(pp, MOVE, y, x);
  68         pp->p_cury = y;
  69         pp->p_curx = x;
  70 }
  71
  72 /*
  73  * outch:
  74  *      Put out a single character.
  75  */
  76 void
  77 outch(PLAYER *pp, char ch)
  78 {
  79
  80         if (pp == ALL_PLAYERS) {
  81                 for (pp = Player; pp < End_player; pp++)
  82                         outch(pp, ch);
  83                 for (pp = Monitor; pp < End_monitor; pp++)
  84                         outch(pp, ch);
  85                 return;
  86         }
  87
  88         if (++pp->p_curx >= TERM_WIDTH) {
  89                 pp->p_curx = 0;
  90                 pp->p_cury++;
  91         }
  92         (void) putc(ch, pp->p_output);
  93 }
  94
  95 /*
  96  * outstr:
  97  *      Put out a string of the given length.
  98  */
  99 void
 100 outstr(PLAYER *pp, const char *str, int len)
 101 {
 102         if (pp == ALL_PLAYERS) {
 103                 for (pp = Player; pp < End_player; pp++)
 104                         outstr(pp, str, len);
 105                 for (pp = Monitor; pp < End_monitor; pp++)
 106                         outstr(pp, str, len);
 107                 return;
 108         }
 109
 110         pp->p_curx += len;
 111         pp->p_cury += (pp->p_curx / TERM_WIDTH);
 112         pp->p_curx %= TERM_WIDTH;
 113         while (len--)
 114                 (void) putc(*str++, pp->p_output);
 115 }
 116
 117 /*
 118  * outat:
 119  *      draw a string at a location on the client.
 120  *      Cursor doesn't move if the location is invalid
 121  */
 122 void
 123 outyx(PLAYER *pp, int y, int x, const char *fmt, ...)
 124 {
 125         va_list ap;
 126         char buf[BUFSIZ];
 127         int len;
 128
 129         va_start(ap, fmt);
 130         len = vsnprintf(buf, sizeof(buf), fmt, ap);
 131         va_end(ap);
 132         if (len == -1)
 133                 len = 0;
 134         if (len >= (int)sizeof(buf))
 135                 len = sizeof(buf) - 1;
 136         if (y >= 0 && x >= 0)
 137                 cgoto(pp, y, x);
 138         if (len > 0)
 139                 outstr(pp, buf, len);
 140 }
 141
 142 /*
 143  * clrscr:
 144  *      Clear the screen, and reset the current position on the screen.
 145  */
 146 void
 147 clrscr(PLAYER *pp)
 148 {
 149
 150         if (pp == ALL_PLAYERS) {
 151                 for (pp = Player; pp < End_player; pp++)
 152                         clrscr(pp);
 153                 for (pp = Monitor; pp < End_monitor; pp++)
 154                         clrscr(pp);
 155                 return;
 156         }
 157
 158         sendcom(pp, CLEAR);
 159         pp->p_cury = 0;
 160         pp->p_curx = 0;
 161 }
 162
 163 /*
 164  * ce:
 165  *      Clear to the end of the line
 166  */
 167 void
 168 ce(PLAYER *pp)
 169 {
 170         sendcom(pp, CLRTOEOL);
 171 }
 172
 173 /*
 174  * sendcom:
 175  *      Send a command to the given user
 176  */
 177 void
 178 sendcom(PLAYER *pp, int command, ...)
 179 {
 180         va_list ap;
 181         char    buf[3];
 182         int     len = 0;
 183
 184         va_start(ap, command);
 185         buf[len++] = command;
 186         switch (command & 0377) {
 187         case MOVE:
 188                 buf[len++] = va_arg(ap, int);
 189                 buf[len++] = va_arg(ap, int);
 190                 break;
 191         case ADDCH:
 192         case READY:
 193         case ENDWIN:
 194                 buf[len++] = va_arg(ap, int);
 195                 break;
 196         }
 197         va_end(ap);
 198
 199         if (pp == ALL_PLAYERS) {
 200                 for (pp = Player; pp < End_player; pp++)
 201                         fwrite(buf, sizeof buf[0], len, pp->p_output);
 202                 for (pp = Monitor; pp < End_monitor; pp++)
 203                         fwrite(buf, sizeof buf[0], len, pp->p_output);
 204                 return;
 205         } else
 206                 fwrite(buf, sizeof buf[0], len, pp->p_output);
 207 }
 208
 209 /*
 210  * sync:
 211  *      Flush the output buffer to the player
 212  */
 213 void
 214 flush(PLAYER *pp)
 215 {
 216         if (pp == ALL_PLAYERS) {
 217                 for (pp = Player; pp < End_player; pp++)
 218                         fflush(pp->p_output);
 219                 for (pp = Monitor; pp < End_monitor; pp++)
 220                         fflush(pp->p_output);
 221         } else
 222                 fflush(pp->p_output);
 223 }
 224
 225 void
 226 logx(int prio, const char *fmt, ...)
 227 {
 228         va_list ap;
 229
 230         va_start(ap, fmt);
 231         if (conf_syslog)
 232                 vsyslog(prio, fmt, ap);
 233         else if (conf_logerr)
 234         /* if (prio < LOG_NOTICE) */
 235                 vwarnx(fmt, ap);
 236         va_end(ap);
 237 }
 238
 239 void
 240 logit(int prio, const char *fmt, ...)
 241 {
 242         va_list ap;
 243         char fmtm[1024];
 244
 245         va_start(ap, fmt);
 246         if (conf_syslog) {
 247                 strlcpy(fmtm, fmt, sizeof fmtm);
 248                 strlcat(fmtm, ": %m", sizeof fmtm);
 249                 vsyslog(prio, fmtm, ap);
 250         } else if (conf_logerr)
 251         /* if (prio < LOG_NOTICE) */
 252                 vwarn(fmt, ap);
 253         va_end(ap);
 254 }