*** empty log message ***
This commit is contained in:
jwalz
454
sys/vms/vmsmain.c
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454
sys/vms/vmsmain.c
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/* SCCS Id: @(#)vmsmain.c 3.3 2001/07/27 */
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/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
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/* NetHack may be freely redistributed. See license for details. */
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/* main.c - VMS NetHack */
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#include "hack.h"
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#include "dlb.h"
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#include <signal.h>
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static void NDECL(whoami);
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static void FDECL(process_options, (int, char **));
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static void NDECL(byebye);
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#ifndef SAVE_ON_FATAL_ERROR
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# ifndef __DECC
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# define vms_handler_type int
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# else
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# define vms_handler_type unsigned int
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# endif
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extern void FDECL(VAXC$ESTABLISH, (vms_handler_type (*)(genericptr_t,genericptr_t)));
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static vms_handler_type FDECL(vms_handler, (genericptr_t,genericptr_t));
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#include <ssdef.h> /* system service status codes */
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#endif
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static void NDECL(wd_message);
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#ifdef WIZARD
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static boolean wiz_error_flag = FALSE;
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#endif
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int
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main(argc,argv)
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int argc;
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char *argv[];
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{
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register int fd;
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#ifdef CHDIR
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register char *dir;
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#endif
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#ifdef SECURE /* this should be the very first code executed */
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privoff();
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fflush((FILE *)0); /* force stdio to init itself */
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privon();
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#endif
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atexit(byebye);
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hname = argv[0];
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hname = vms_basename(hname); /* name used in 'usage' type messages */
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hackpid = getpid();
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(void) umask(0);
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choose_windows(DEFAULT_WINDOW_SYS);
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#ifdef CHDIR /* otherwise no chdir() */
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/*
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* See if we must change directory to the playground.
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* (Perhaps hack is installed with privs and playground is
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* inaccessible for the player.)
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* The logical name HACKDIR is overridden by a
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* -d command line option (must be the first option given)
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*/
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dir = nh_getenv("NETHACKDIR");
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if (!dir) dir = nh_getenv("HACKDIR");
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#endif
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if(argc > 1) {
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#ifdef CHDIR
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if (!strncmp(argv[1], "-d", 2) && argv[1][2] != 'e') {
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/* avoid matching "-dec" for DECgraphics; since the man page
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* says -d directory, hope nobody's using -desomething_else
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*/
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argc--;
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argv++;
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dir = argv[0]+2;
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if(*dir == '=' || *dir == ':') dir++;
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if(!*dir && argc > 1) {
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argc--;
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argv++;
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dir = argv[0];
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}
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if(!*dir)
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error("Flag -d must be followed by a directory name.");
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}
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if (argc > 1)
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#endif /* CHDIR */
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/*
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* Now we know the directory containing 'record' and
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* may do a prscore().
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*/
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if (!strncmp(argv[1], "-s", 2)) {
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#ifdef CHDIR
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chdirx(dir, FALSE);
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#endif
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prscore(argc, argv);
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exit(EXIT_SUCCESS);
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}
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}
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#ifdef CHDIR
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/* move to the playground directory; 'termcap' might be found there */
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chdirx(dir, TRUE);
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#endif
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#ifdef SECURE
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/* disable installed privs while loading nethack.cnf and termcap,
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and also while initializing terminal [$assign("TT:")]. */
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privoff();
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#endif
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initoptions();
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init_nhwindows(&argc, argv);
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whoami();
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#ifdef SECURE
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privon();
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#endif
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/*
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* It seems you really want to play.
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*/
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u.uhp = 1; /* prevent RIP on early quits */
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#ifndef SAVE_ON_FATAL_ERROR
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/* used to clear hangup stuff while still giving standard traceback */
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VAXC$ESTABLISH(vms_handler);
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#endif
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(void) signal(SIGHUP, (SIG_RET_TYPE) hangup);
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process_options(argc, argv); /* command line options */
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#ifdef WIZARD
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if (wizard)
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Strcpy(plname, "wizard");
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else
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#endif
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if (!*plname || !strncmpi(plname, "games", 4) ||
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!strcmpi(plname, "nethack"))
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askname();
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plnamesuffix(); /* strip suffix from name; calls askname() */
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/* again if suffix was whole name */
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/* accepts any suffix */
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#ifdef WIZARD
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if(!wizard) {
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#endif
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/*
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* check for multiple games under the same name
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* (if !locknum) or check max nr of players (otherwise)
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*/
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(void) signal(SIGQUIT,SIG_IGN);
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(void) signal(SIGINT,SIG_IGN);
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if(!locknum)
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Sprintf(lock, "_%u%s", (unsigned)getuid(), plname);
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getlock();
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#ifdef WIZARD
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} else {
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Sprintf(lock, "_%u%s", (unsigned)getuid(), plname);
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getlock();
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}
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#endif /* WIZARD */
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dlb_init(); /* must be before newgame() */
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/*
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* Initialization of the boundaries of the mazes
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* Both boundaries have to be even.
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*/
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x_maze_max = COLNO-1;
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if (x_maze_max % 2)
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x_maze_max--;
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y_maze_max = ROWNO-1;
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if (y_maze_max % 2)
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y_maze_max--;
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/*
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* Initialize the vision system. This must be before mklev() on a
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* new game or before a level restore on a saved game.
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*/
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vision_init();
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display_gamewindows();
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if ((fd = restore_saved_game()) >= 0) {
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#ifdef WIZARD
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/* Since wizard is actually flags.debug, restoring might
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* overwrite it.
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*/
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boolean remember_wiz_mode = wizard;
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#endif
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const char *fq_save = fqname(SAVEF, SAVEPREFIX, 0);
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(void) chmod(fq_save,0); /* disallow parallel restores */
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(void) signal(SIGINT, (SIG_RET_TYPE) done1);
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#ifdef NEWS
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if(iflags.news) {
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display_file(NEWS, FALSE);
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iflags.news = FALSE; /* in case dorecover() fails */
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}
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#endif
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pline("Restoring save file...");
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mark_synch(); /* flush output */
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if(!dorecover(fd))
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goto not_recovered;
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#ifdef WIZARD
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if(!wizard && remember_wiz_mode) wizard = TRUE;
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#endif
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check_special_room(FALSE);
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wd_message();
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if (discover || wizard) {
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if (yn("Do you want to keep the save file?") == 'n')
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(void) delete_savefile();
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else
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(void) chmod(fq_save,FCMASK); /* back to readable */
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}
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flags.move = 0;
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} else {
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not_recovered:
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player_selection();
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newgame();
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wd_message();
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flags.move = 0;
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set_wear();
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(void) pickup(1);
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}
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moveloop();
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exit(EXIT_SUCCESS);
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/*NOTREACHED*/
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return(0);
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}
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static void
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process_options(argc, argv)
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int argc;
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char *argv[];
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{
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int i;
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/*
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* Process options.
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*/
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while(argc > 1 && argv[1][0] == '-'){
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argv++;
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argc--;
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switch(argv[0][1]){
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case 'D':
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#ifdef WIZARD
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if(!strcmpi(nh_getenv("USER"), WIZARD_NAME)) {
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wizard = TRUE;
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break;
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}
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/* otherwise fall thru to discover */
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wiz_error_flag = TRUE;
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#endif /* WIZARD */
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case 'X':
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case 'x':
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discover = TRUE;
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break;
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#ifdef NEWS
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case 'n':
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iflags.news = FALSE;
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break;
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#endif
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case 'u':
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if(argv[0][2])
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(void) strncpy(plname, argv[0]+2, sizeof(plname)-1);
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else if(argc > 1) {
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argc--;
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argv++;
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(void) strncpy(plname, argv[0], sizeof(plname)-1);
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} else
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raw_print("Player name expected after -u");
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break;
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case 'I':
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case 'i':
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if (!strncmpi(argv[0]+1, "IBM", 3))
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switch_graphics(IBM_GRAPHICS);
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break;
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/* case 'D': */
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case 'd':
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if (!strncmpi(argv[0]+1, "DEC", 3))
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switch_graphics(DEC_GRAPHICS);
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break;
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case 'p': /* profession (role) */
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if (argv[0][2]) {
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if ((i = str2role(&argv[0][2])) >= 0)
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flags.initrole = i;
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} else if (argc > 1) {
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argc--;
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argv++;
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if ((i = str2role(argv[0])) >= 0)
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flags.initrole = i;
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}
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break;
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case 'r': /* race */
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if (argv[0][2]) {
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if ((i = str2race(&argv[0][2])) >= 0)
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flags.initrace = i;
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} else if (argc > 1) {
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argc--;
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argv++;
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if ((i = str2race(argv[0])) >= 0)
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flags.initrace = i;
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}
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break;
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case '@':
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flags.randomall = 1;
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break;
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default:
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if ((i = str2role(&argv[0][1])) >= 0) {
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flags.initrole = i;
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break;
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}
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/* else raw_printf("Unknown option: %s", *argv); */
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}
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}
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if(argc > 1)
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locknum = atoi(argv[1]);
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#ifdef MAX_NR_OF_PLAYERS
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if(!locknum || locknum > MAX_NR_OF_PLAYERS)
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locknum = MAX_NR_OF_PLAYERS;
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#endif
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}
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#ifdef CHDIR
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void
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chdirx(dir, wr)
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const char *dir;
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boolean wr;
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{
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# ifndef HACKDIR
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static const char *defdir = ".";
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# else
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static const char *defdir = HACKDIR;
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if(dir == (const char *)0)
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dir = defdir;
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else if (wr && !same_dir(HACKDIR, dir))
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/* If we're playing anywhere other than HACKDIR, turn off any
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privs we may have been installed with. */
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privoff();
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# endif
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if(dir && chdir(dir) < 0) {
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perror(dir);
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error("Cannot chdir to %s.", dir);
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}
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/* warn the player if we can't write the record file */
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if (wr) check_recordfile(dir);
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defdir = dir;
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}
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#endif /* CHDIR */
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static void
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whoami()
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{
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/*
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* Who am i? Algorithm: 1. Use name as specified in NETHACKOPTIONS
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* 2. Use lowercase of $USER (if 1. fails)
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* The resulting name is overridden by command line options.
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* If everything fails, or if the resulting name is some generic
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* account like "games" then eventually we'll ask him.
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* Note that we trust the user here; it is possible to play under
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* somebody else's name.
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*/
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register char *s;
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if (!*plname && (s = nh_getenv("USER")))
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(void) lcase(strncpy(plname, s, sizeof(plname)-1));
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}
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static void
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byebye()
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{
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/* Different versions of both VAX C and GNU C use different return types
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for signal functions. Return type 'int' along with the explicit casts
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below satisfy the most combinations of compiler vs <signal.h>.
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*/
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int (*hup)();
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#ifdef SHELL
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extern unsigned long dosh_pid, mail_pid;
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extern unsigned long FDECL(sys$delprc,(unsigned long *,const genericptr_t));
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/* clean up any subprocess we've spawned that may still be hanging around */
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if (dosh_pid) (void) sys$delprc(&dosh_pid, 0), dosh_pid = 0;
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if (mail_pid) (void) sys$delprc(&mail_pid, 0), mail_pid = 0;
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#endif
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/* SIGHUP doesn't seem to do anything on VMS, so we fudge it here... */
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hup = (int(*)()) signal(SIGHUP, SIG_IGN);
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if (!program_state.exiting++ &&
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hup != (int(*)()) SIG_DFL && hup != (int(*)()) SIG_IGN)
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(void) (*hup)();
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#ifdef CHDIR
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(void) chdir(getenv("PATH"));
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#endif
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}
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#ifndef SAVE_ON_FATAL_ERROR
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/* Condition handler to prevent byebye's hangup simulation
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from saving the game after a fatal error has occurred. */
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/*ARGSUSED*/
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static vms_handler_type /* should be `unsigned long', but the -*/
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vms_handler(sigargs, mechargs) /*+ prototype in <signal.h> is screwed */
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genericptr_t sigargs, mechargs; /* [0] is argc, [1..argc] are the real args */
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{
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unsigned long condition = ((unsigned long *)sigargs)[1];
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if (condition == SS$_ACCVIO /* access violation */
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|| (condition >= SS$_ASTFLT && condition <= SS$_TBIT)
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|| (condition >= SS$_ARTRES && condition <= SS$_INHCHME)) {
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program_state.done_hup = TRUE; /* pretend hangup has been attempted */
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# if defined(WIZARD) && !defined(BETA)
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if (wizard)
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# endif /*WIZARD && !BETA*/
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# if defined(WIZARD) || defined(BETA)
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abort(); /* enter the debugger */
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# endif /*WIZARD || BETA*/
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}
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return SS$_RESIGNAL;
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}
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#endif
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#ifdef PORT_HELP
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void
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port_help()
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{
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/*
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* Display VMS-specific help. Just show contents of the helpfile
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* named by PORT_HELP.
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*/
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display_file(PORT_HELP, TRUE);
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}
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#endif /* PORT_HELP */
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static void
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wd_message()
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{
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#ifdef WIZARD
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if (wiz_error_flag) {
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pline("Only user \"%s\" may access debug (wizard) mode.",
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WIZARD_NAME);
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pline("Entering discovery mode instead.");
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} else
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#endif
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if (discover)
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You("are in non-scoring discovery mode.");
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}
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/*vmsmain.c*/
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Reference in New Issue
Block a user