+/*
+ * Copyright (c) 1983 Regents of the University of California,
+ * All rights reserved. Redistribution permitted subject to
+ * the terms of the Berkeley Software License Agreement.
+ */
+
#ifndef lint
-static char *sccsid = "@(#)pl_1.c 2.6 84/01/27";
+static char *sccsid = "@(#)pl_1.c 2.10 85/04/23";
#endif
#include "player.h"
#include <sys/types.h>
#include <sys/wait.h>
-int choke(), child();
-
-static char hasdriver;
-
-/*ARGSUSED*/
-main(argc, argv)
-int argc;
-char **argv;
-{
- char nodrive = 0, randomize = 0, debug = 0;
- extern char _sobuf[];
-
- setbuf(stdout, _sobuf);
- isplayer = 1;
-
- while (*++argv && **argv == '-')
- switch (*++*argv) {
- case 'd':
- nodrive = 1;
- break;
- case 'D':
- debug++;
- break;
- case 'x':
- randomize = 1;
- break;
- default:
- printf("Unknown flag '%s'\n",*argv);
- break;
- }
- if (*argv)
- game = atoi(*argv);
- else
- game = -1;
- initialize(nodrive, randomize, debug);
- Signal("Aye aye, Sir", (struct ship *)0);
- play();
-}
-
-initialize(nodriver, randomize, debug)
-char randomize, nodriver, debug;
-{
- register struct File *fp;
- register struct ship *sp;
- char captain[80];
- char message[60];
- int load;
- register int n;
- char *nameptr;
- int nat[NNATION];
-
- (void) srand(getpid());
-
- if (game < 0) {
- (void) puts("Choose a scenario:\n");
- (void) puts("\n\tNUMBER\tSHIPS\tIN PLAY\tTITLE");
- for (n = 0; n < NSCENE; n++) {
- /* ( */
- printf("\t%d):\t%d\t%s\t%s\n", n, scene[n].vessels,
- sync_exists(n) ? "YES" : "no",
- scene[n].name);
- }
-reprint:
- printf("\nScenario number? ");
- (void) fflush(stdout);
- (void) scanf("%d", &game);
- while (getchar() != '\n')
- ;
- }
- if (game < 0 || game >= NSCENE) {
- (void) puts("Very funny.");
- exit(1);
- }
- cc = &scene[game];
- ls = SHIP(cc->vessels);
-
- for (n = 0; n < NNATION; n++)
- nat[n] = 0;
- foreachship(sp) {
- sp->file = (struct File *) calloc(1, sizeof (struct File));
- if (sp->file == NULL) {
- (void) puts("OUT OF MEMORY");
- exit(0);
- }
- sp->file->index = sp - SHIP(0);
- sp->file->stern = nat[sp->nationality]++;
- sp->file->dir = sp->shipdir;
- sp->file->row = sp->shiprow;
- sp->file->col = sp->shipcol;
- }
- windspeed = cc->windspeed;
- winddir = cc->winddir;
-
- (void) signal(SIGHUP, choke);
- (void) signal(SIGINT, choke);
- (void) signal(SIGQUIT, choke);
-
- hasdriver = sync_exists(game);
- if (sync_open() < 0) {
- perror("sail: syncfile");
- exit(1);
- }
-
- if (hasdriver) {
- (void) puts("Synchronizing with the other players...");
- (void) fflush(stdout);
- Sync();
- }
- for (;;) {
- foreachship(sp)
- if (sp->file->captain[0] == 0 && !sp->file->struck
- && sp->file->captured == 0)
- break;
- if (sp >= ls) {
- (void) puts("All ships taken in that scenario.");
- foreachship(sp)
- free((char *)sp->file);
- sync_close(0);
- people = 0;
- goto reprint;
- }
- if (randomize) {
- player = sp - SHIP(0);
- } else {
- printf("%s\n\n", cc->name);
- foreachship(sp)
- printf(" %2d: %-10s %-15s (%-2d pts) %s\n",
- sp->file->index,
- countryname[sp->nationality],
- sp->shipname,
- sp->specs->pts,
- saywhat(sp, 1));
- printf("\nWhich ship (0-%d)? ", cc->vessels-1);
- (void) fflush(stdout);
- if (scanf("%d", &player) != 1 || player < 0
- || player >= cc->vessels) {
- while (getchar() != '\n')
- ;
- (void) puts("Say what?");
- player = -1;
- } else
- while (getchar() != '\n')
- ;
- }
- if (player < 0)
- continue;
- Sync();
- fp = SHIP(player)->file;
- if (fp->captain[0] || fp->struck || fp->captured != 0)
- (void) puts("That ship is taken.");
- else
- break;
- }
-
- ms = SHIP(player);
- mf = ms->file;
- mc = ms->specs;
-
- Write(W_BEGIN, ms, 0, 0, 0, 0, 0);
- Sync();
-
- (void) signal(SIGCHLD, child);
- if (!hasdriver && !nodriver) {
- char num[10];
- (void) sprintf(num, "%d", game);
- switch (fork()) {
- case 0:
- execl(DRIVER1, DRIVERNAME, num, 0);
- execl(DRIVER2, DRIVERNAME, num, 0);
- execl(DRIVER3, DRIVERNAME, num, 0);
- perror(DRIVERNAME);
- exit(1);
- break;
- case -1:
- perror("fork");
- leave(LEAVE_QUIT);
- break;
- default:
- hasdriver++;
- }
- }
-
- printf("Your ship is the %s, a %d gun %s (%s crew).\n",
- ms->shipname, mc->guns, classname[mc->class],
- qualname[mc->qual]);
- if ((nameptr = (char *) getenv("SAILNAME")) && *nameptr)
- (void) strncpy(captain, nameptr, sizeof captain);
- else {
- (void) printf("Your name, Captain? ");
- (void) fflush(stdout);
- (void) gets(captain);
- if (!*captain)
- (void) strcpy(captain, "no name");
- }
- captain[sizeof captain - 1] = '\0';
- Write(W_CAPTAIN, ms, 1, (int)captain, 0, 0, 0);
- for (n = 0; n < 2; n++) {
- char buf[10];
-
- printf("\nInitial broadside %s (grape, chain, round, double): ",
- n ? "right" : "left");
- (void) fflush(stdout);
- (void) scanf("%s", buf);
- switch (*buf) {
- case 'g':
- load = L_GRAPE;
- break;
- case 'c':
- load = L_CHAIN;
- break;
- case 'r':
- load = L_ROUND;
- break;
- case 'd':
- load = L_DOUBLE;
- break;
- default:
- load = L_ROUND;
- }
- if (n) {
- mf->loadR = load;
- mf->readyR = R_LOADED|R_INITIAL;
- } else {
- mf->loadL = load;
- mf->readyL = R_LOADED|R_INITIAL;
- }
- }
-
- initscreen();
- blockalarm();
- draw_board();
- unblockalarm();
- (void) sprintf(message, "Captain %s assuming command", captain);
- Write(W_SIGNAL, ms, 1, (int)message, 0, 0, 0);
- newturn();
-}
-
/*
* If we get here before a ship is chosen, then ms == 0 and
* we don't want to update the score file, or do any Write's either.
* We can assume the sync file is already created and may need
* to be removed.
+ * Of course, we don't do any more Sync()'s if we got here
+ * because of a Sync() failure.
*/
leave(conditions)
int conditions;
{
- FILE *fp;
- int persons;
- float net;
- register int n;
- struct logs log[10], temp;
-
(void) signal(SIGHUP, SIG_IGN);
(void) signal(SIGINT, SIG_IGN);
(void) signal(SIGQUIT, SIG_IGN);
(struct ship *)0);
break;
case LEAVE_DRIVER:
- /* don't clear 'hasdriver' here */
Signal("The driver died.", (struct ship *)0);
break;
+ case LEAVE_SYNC:
+ Signal("Synchronization error.", (struct ship *)0);
+ break;
default:
Signal("A funny thing happened (%d).",
(struct ship *)0, conditions);
printf("The driver died.\n");
break;
case LEAVE_FORK:
- hasdriver = 0;
- printf("Can't fork.\n");
+ perror("fork");
+ break;
+ case LEAVE_SYNC:
+ printf("Synchronization error\n.");
break;
default:
printf("A funny thing happened (%d).\n",
}
if (ms != 0) {
- if (fp = fopen(LOGFILE, "r+")) {
- net = (float)mf->points / mc->pts;
- persons = getw(fp);
- n = fread((char *)log, sizeof(struct logs), 10, fp);
- for (; n < 10; n++)
- log[n].l_name[0]
- = log[n].l_uid
- = log[n].l_shipnum
- = log[n].l_gamenum
- = log[n].l_netpoints = 0;
- rewind(fp);
- if (persons < 0)
- (void) putw(1, fp);
- else
- (void) putw(persons + 1, fp);
- for (n = 0; n < 10; n++)
- if (net > (float) log[n].l_netpoints / scene[log[n].l_gamenum].ship[log[n].l_shipnum].specs->pts) {
- (void) fwrite((char *)log,
- sizeof (struct logs), n, fp);
- (void) strcpy(temp.l_name, mf->captain);
- temp.l_uid = getuid();
- temp.l_shipnum = player;
- temp.l_gamenum = game;
- temp.l_netpoints = mf->points;
- (void) fwrite((char *)&temp,
- sizeof temp, 1, fp);
- (void) fwrite((char *)&log[n],
- sizeof (struct logs), 9-n, fp);
- break;
- }
- (void) fclose(fp);
+ log(ms);
+ if (conditions != LEAVE_SYNC) {
+ makesignal(ms, "Captain %s relinquishing.",
+ (struct ship *)0, mf->captain);
+ Write(W_END, ms, 0, 0, 0, 0, 0);
+ (void) Sync();
}
- makesignal(ms, "Captain %s relinquishing.", (struct ship *)0,
- mf->captain);
- Write(W_END, ms, 0, 0, 0, 0, 0);
- Sync();
}
sync_close(!hasdriver);
cleanupscreen();
(void) signal(SIGCHLD, SIG_IGN);
do {
- pid = wait3(&status, WNOHANG|WUNTRACED, (struct rusage *)0);
+ pid = wait3(&status, WNOHANG, (struct rusage *)0);
if (pid < 0 || pid > 0 && !WIFSTOPPED(status))
- leave(LEAVE_DRIVER);
- } while (pid != 0);
+ hasdriver = 0;
+ } while (pid > 0);
(void) signal(SIGCHLD, child);
}