Files
nethack/sys/unix/unixmain.c
nethack.rankin 43f72cc357 yet more wizard mode handling (trunk only)
Reorganize the recent wizard mode control:  move set_playmode() from
xxxmain.c to the core, and have it call new authorize_wizard_mode() to do
the port-specific part.  If the set_playmode() call during startup doesn't
result in running in wizard mode (either because not allowed or user
didn't request it), it will be called again during restore if the save
file is from a wizard mode game.

     For ports which check character name for authorization, players will
have to use `nethack -u whatever -D' (or options for name and playmode) to
restore a wizard mode save file if WIZARD has been changed from "wizard".
plname[] from a wizard mode saved game will always have that value, so if
it's not the right one players will need to get authorized by the startup
code before loading the save file.
2007-02-17 05:25:36 +00:00

575 lines
14 KiB
C

/* SCCS Id: @(#)unixmain.c 3.5 2007/02/14 */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
/* main.c - Unix NetHack */
#include "hack.h"
#include "dlb.h"
#include <sys/stat.h>
#include <signal.h>
#include <pwd.h>
#ifndef O_RDONLY
#include <fcntl.h>
#endif
#if !defined(_BULL_SOURCE) && !defined(__sgi) && !defined(_M_UNIX)
# if !defined(SUNOS4) && !(defined(ULTRIX) && defined(__GNUC__))
# if defined(POSIX_TYPES) || defined(SVR4) || defined(HPUX)
extern struct passwd *FDECL(getpwuid,(uid_t));
# else
extern struct passwd *FDECL(getpwuid,(int));
# endif
# endif
#endif
extern struct passwd *FDECL(getpwnam,(const char *));
#ifdef CHDIR
static void FDECL(chdirx, (const char *,BOOLEAN_P));
#endif /* CHDIR */
static boolean NDECL(whoami);
static void FDECL(process_options, (int, char **));
#ifdef _M_UNIX
extern void NDECL(check_sco_console);
extern void NDECL(init_sco_cons);
#endif
#ifdef __linux__
extern void NDECL(check_linux_console);
extern void NDECL(init_linux_cons);
#endif
static void NDECL(wd_message);
static boolean wiz_error_flag = FALSE;
int
main(argc,argv)
int argc;
char *argv[];
{
register int fd;
#ifdef CHDIR
register char *dir;
#endif
boolean exact_username;
boolean resuming = FALSE; /* assume new game */
#if defined(__APPLE__)
/* special hack to change working directory to a resource fork when
running from finder --sam */
#define MAC_PATH_VALUE ".app/Contents/MacOS/"
char mac_cwd[1024], *mac_exe = argv[0], *mac_tmp;
int arg0_len = strlen(mac_exe), mac_tmp_len, mac_lhs_len=0;
getcwd(mac_cwd, 1024);
if(mac_exe[0] == '/' && !strcmp(mac_cwd, "/")) {
if((mac_exe = strrchr(mac_exe, '/')))
mac_exe++;
else
mac_exe = argv[0];
mac_tmp_len = (strlen(mac_exe) * 2) + strlen(MAC_PATH_VALUE);
if(mac_tmp_len <= arg0_len) {
mac_tmp = malloc(mac_tmp_len + 1);
sprintf(mac_tmp, "%s%s%s", mac_exe, MAC_PATH_VALUE, mac_exe);
if(!strcmp(argv[0] + (arg0_len - mac_tmp_len), mac_tmp)) {
mac_lhs_len = (arg0_len - mac_tmp_len) + strlen(mac_exe) + 5;
if(mac_lhs_len > mac_tmp_len - 1)
mac_tmp = realloc(mac_tmp, mac_lhs_len);
strncpy(mac_tmp, argv[0], mac_lhs_len);
mac_tmp[mac_lhs_len] = '\0';
chdir(mac_tmp);
}
free(mac_tmp);
}
}
#endif
hname = argv[0];
hackpid = getpid();
(void) umask(0777 & ~FCMASK);
choose_windows(DEFAULT_WINDOW_SYS);
#ifdef CHDIR /* otherwise no chdir() */
/*
* See if we must change directory to the playground.
* (Perhaps hack runs suid and playground is inaccessible
* for the player.)
* The environment variable HACKDIR is overridden by a
* -d command line option (must be the first option given)
*/
dir = nh_getenv("NETHACKDIR");
if (!dir) dir = nh_getenv("HACKDIR");
#endif
if(argc > 1) {
#ifdef CHDIR
if (!strncmp(argv[1], "-d", 2) && argv[1][2] != 'e') {
/* avoid matching "-dec" for DECgraphics; since the man page
* says -d directory, hope nobody's using -desomething_else
*/
argc--;
argv++;
dir = argv[0]+2;
if(*dir == '=' || *dir == ':') dir++;
if(!*dir && argc > 1) {
argc--;
argv++;
dir = argv[0];
}
if(!*dir)
error("Flag -d must be followed by a directory name.");
}
if (argc > 1)
#endif /* CHDIR */
/*
* Now we know the directory containing 'record' and
* may do a prscore(). Exclude `-style' - it's a Qt option.
*/
if (!strncmp(argv[1], "-s", 2) && strncmp(argv[1], "-style", 6)) {
#ifdef CHDIR
chdirx(dir,0);
#endif
prscore(argc, argv);
exit(EXIT_SUCCESS);
}
}
/*
* Change directories before we initialize the window system so
* we can find the tile file.
*/
#ifdef CHDIR
chdirx(dir,1);
#endif
#ifdef _M_UNIX
check_sco_console();
#endif
#ifdef __linux__
check_linux_console();
#endif
initoptions();
exact_username = whoami();
/*
* It seems you really want to play.
*/
u.uhp = 1; /* prevent RIP on early quits */
program_state.preserve_locks = 1;
sethanguphandler((SIG_RET_TYPE)hangup);
process_options(argc, argv); /* command line options */
init_nhwindows(&argc, argv); /* now we can set up window system */
#ifdef _M_UNIX
init_sco_cons();
#endif
#ifdef __linux__
init_linux_cons();
#endif
#ifdef DEF_PAGER
if(!(catmore = nh_getenv("HACKPAGER")) && !(catmore = nh_getenv("PAGER")))
catmore = DEF_PAGER;
#endif
#ifdef MAIL
getmailstatus();
#endif
/* wizard mode access is deferred until here */
set_playmode(); /* sets plname to "wizard" for wizard mode */
if(!*plname || !strncmp(plname, "player", 4)
|| !strncmp(plname, "games", 4)) {
askname();
} else if (exact_username) {
/* guard against user names with hyphens in them */
int len = strlen(plname);
/* append the current role, if any, so that last dash is ours */
if (++len < sizeof plname)
(void)strncat(strcat(plname, "-"),
pl_character, sizeof plname - len - 1);
}
plnamesuffix(); /* strip suffix from name; calls askname() */
/* again if suffix was whole name */
/* accepts any suffix */
#ifdef WIZARD
if(!wizard) {
#endif
/*
* check for multiple games under the same name
* (if !locknum) or check max nr of players (otherwise)
*/
(void) signal(SIGQUIT,SIG_IGN);
(void) signal(SIGINT,SIG_IGN);
if(!locknum)
Sprintf(lock, "%d%s", (int)getuid(), plname);
getlock();
#ifdef WIZARD
} else {
Sprintf(lock, "%d%s", (int)getuid(), plname);
getlock();
}
#endif /* WIZARD */
program_state.preserve_locks = 0; /* after getlock() */
dlb_init(); /* must be before newgame() */
/*
* Initialization of the boundaries of the mazes
* Both boundaries have to be even.
*/
x_maze_max = COLNO-1;
if (x_maze_max % 2)
x_maze_max--;
y_maze_max = ROWNO-1;
if (y_maze_max % 2)
y_maze_max--;
/*
* Initialize the vision system. This must be before mklev() on a
* new game or before a level restore on a saved game.
*/
vision_init();
display_gamewindows();
if ((fd = restore_saved_game()) >= 0) {
const char *fq_save = fqname(SAVEF, SAVEPREFIX, 1);
(void) chmod(fq_save,0); /* disallow parallel restores */
(void) signal(SIGINT, (SIG_RET_TYPE) done1);
#ifdef NEWS
if(iflags.news) {
display_file(NEWS, FALSE);
iflags.news = FALSE; /* in case dorecover() fails */
}
#endif
pline("Restoring save file...");
mark_synch(); /* flush output */
if (dorecover(fd)) {
resuming = TRUE; /* not starting new game */
wd_message();
if (discover || wizard) {
if(yn("Do you want to keep the save file?") == 'n')
(void) delete_savefile();
else {
(void) chmod(fq_save,FCMASK); /* back to readable */
nh_compress(fq_save);
}
}
}
}
if (!resuming) {
player_selection();
newgame();
wd_message();
}
moveloop(resuming);
exit(EXIT_SUCCESS);
/*NOTREACHED*/
return(0);
}
static void
process_options(argc, argv)
int argc;
char *argv[];
{
int i;
/*
* Process options.
*/
while(argc > 1 && argv[1][0] == '-'){
argv++;
argc--;
switch(argv[0][1]){
case 'D':
wizard = TRUE, discover = FALSE;
break;
case 'X':
discover = TRUE, wizard = FALSE;
break;
#ifdef NEWS
case 'n':
iflags.news = FALSE;
break;
#endif
case 'u':
if(argv[0][2])
(void) strncpy(plname, argv[0]+2, sizeof(plname)-1);
else if(argc > 1) {
argc--;
argv++;
(void) strncpy(plname, argv[0], sizeof(plname)-1);
} else
raw_print("Player name expected after -u");
break;
case 'I':
case 'i':
if (!strncmpi(argv[0]+1, "IBM", 3)) {
#ifdef LOADSYMSETS
load_symset("IBMGraphics", PRIMARY);
load_symset("RogueIBM", ROGUESET);
switch_symbols(TRUE);
#endif
}
break;
/* case 'D': */
case 'd':
if (!strncmpi(argv[0]+1, "DEC", 3)) {
#ifdef LOADSYMSETS
load_symset("DECGraphics", PRIMARY);
switch_symbols(TRUE);
#endif
}
break;
case 'p': /* profession (role) */
if (argv[0][2]) {
if ((i = str2role(&argv[0][2])) >= 0)
flags.initrole = i;
} else if (argc > 1) {
argc--;
argv++;
if ((i = str2role(argv[0])) >= 0)
flags.initrole = i;
}
break;
case 'r': /* race */
if (argv[0][2]) {
if ((i = str2race(&argv[0][2])) >= 0)
flags.initrace = i;
} else if (argc > 1) {
argc--;
argv++;
if ((i = str2race(argv[0])) >= 0)
flags.initrace = i;
}
break;
case 'w': /* windowtype */
choose_windows(&argv[0][2]);
break;
case '@':
flags.randomall = 1;
break;
default:
if ((i = str2role(&argv[0][1])) >= 0) {
flags.initrole = i;
break;
}
/* else raw_printf("Unknown option: %s", *argv); */
}
}
if(argc > 1)
locknum = atoi(argv[1]);
#ifdef MAX_NR_OF_PLAYERS
if(!locknum || locknum > MAX_NR_OF_PLAYERS)
locknum = MAX_NR_OF_PLAYERS;
#endif
}
#ifdef CHDIR
static void
chdirx(dir, wr)
const char *dir;
boolean wr;
{
if (dir /* User specified directory? */
# ifdef HACKDIR
&& strcmp(dir, HACKDIR) /* and not the default? */
# endif
) {
# ifdef SECURE
(void) setgid(getgid());
(void) setuid(getuid()); /* Ron Wessels */
# endif
} else {
/* non-default data files is a sign that scores may not be
* compatible, or perhaps that a binary not fitting this
* system's layout is being used.
*/
# ifdef VAR_PLAYGROUND
int len = strlen(VAR_PLAYGROUND);
fqn_prefix[SCOREPREFIX] = (char *)alloc(len+2);
Strcpy(fqn_prefix[SCOREPREFIX], VAR_PLAYGROUND);
if (fqn_prefix[SCOREPREFIX][len-1] != '/') {
fqn_prefix[SCOREPREFIX][len] = '/';
fqn_prefix[SCOREPREFIX][len+1] = '\0';
}
# endif
}
# ifdef HACKDIR
if (dir == (const char *)0)
dir = HACKDIR;
# endif
if (dir && chdir(dir) < 0) {
perror(dir);
error("Cannot chdir to %s.", dir);
}
/* warn the player if we can't write the record file */
/* perhaps we should also test whether . is writable */
/* unfortunately the access system-call is worthless */
if (wr) {
# ifdef VAR_PLAYGROUND
fqn_prefix[LEVELPREFIX] = fqn_prefix[SCOREPREFIX];
fqn_prefix[SAVEPREFIX] = fqn_prefix[SCOREPREFIX];
fqn_prefix[BONESPREFIX] = fqn_prefix[SCOREPREFIX];
fqn_prefix[LOCKPREFIX] = fqn_prefix[SCOREPREFIX];
fqn_prefix[TROUBLEPREFIX] = fqn_prefix[SCOREPREFIX];
# endif
check_recordfile(dir);
}
}
#endif /* CHDIR */
static boolean
whoami() {
/*
* Who am i? Algorithm: 1. Use name as specified in NETHACKOPTIONS
* 2. Use $USER or $LOGNAME (if 1. fails)
* 3. Use getlogin() (if 2. fails)
* The resulting name is overridden by command line options.
* If everything fails, or if the resulting name is some generic
* account like "games", "play", "player", "hack" then eventually
* we'll ask him.
* Note that we trust the user here; it is possible to play under
* somebody else's name.
*/
#if defined(__APPLE__)
/* Unixisms just confuse the user */
(void) strncpy(plname, "player", sizeof(plname)-1);
#else
register char *s;
if (*plname) return FALSE;
if(/* !*plname && */ (s = nh_getenv("USER")))
(void) strncpy(plname, s, sizeof(plname)-1);
if(!*plname && (s = nh_getenv("LOGNAME")))
(void) strncpy(plname, s, sizeof(plname)-1);
if(!*plname && (s = getlogin()))
(void) strncpy(plname, s, sizeof(plname)-1);
#endif
return TRUE;
}
void
sethanguphandler(handler)
void FDECL((*handler), (int));
{
#ifdef SA_RESTART
/* don't want reads to restart. If SA_RESTART is defined, we know
* sigaction exists and can be used to ensure reads won't restart.
* If it's not defined, assume reads do not restart. If reads restart
* and a signal occurs, the game won't do anything until the read
* succeeds (or the stream returns EOF, which might not happen if
* reading from, say, a window manager). */
struct sigaction sact;
(void) memset((genericptr_t)&sact, 0, sizeof sact);
sact.sa_handler = (SIG_RET_TYPE)handler;
(void) sigaction(SIGHUP, &sact, (struct sigaction *)0);
# ifdef SIGXCPU
(void) sigaction(SIGXCPU, &sact, (struct sigaction *)0);
# endif
#else /* !SA_RESTART */
(void) signal(SIGHUP, (SIG_RET_TYPE)handler);
# ifdef SIGXCPU
(void) signal(SIGXCPU, (SIG_RET_TYPE)handler);
# endif
#endif /* ?SA_RESTART */
}
#ifdef PORT_HELP
void
port_help()
{
/*
* Display unix-specific help. Just show contents of the helpfile
* named by PORT_HELP.
*/
display_file(PORT_HELP, TRUE);
}
#endif
/* for KR1ED config, WIZARD is 0 or 1 and WIZARD_NAME is a string;
for usual config, WIZARD is the string; forcing WIZARD_NAME to match it
eliminates conditional testing for which one to use in string ops */
#ifndef KR1ED
# undef WIZARD_NAME
# define WIZARD_NAME WIZARD
#endif
/* validate wizard mode if player has requested access to it */
boolean
authorize_wizard_mode()
{
#ifdef WIZARD
char *user;
int uid;
struct passwd *pw = (struct passwd *)0;
uid = getuid();
user = getlogin();
if (user) {
pw = getpwnam(user);
if (pw && (pw->pw_uid != uid)) pw = 0;
}
if (pw == 0) {
user = nh_getenv("USER");
if (user) {
pw = getpwnam(user);
if (pw && (pw->pw_uid != uid)) pw = 0;
}
if (pw == 0) {
pw = getpwuid(uid);
}
}
if (pw && !strcmp(pw->pw_name, WIZARD_NAME)) return TRUE;
#endif /* WIZARD */
return FALSE;
}
static void
wd_message()
{
if (wiz_error_flag) {
#ifdef WIZARD
pline("Only user \"%s\" may access debug (wizard) mode.",
WIZARD_NAME);
#else
pline("Debug mode is not available.");
#endif
pline("Entering explore/discovery mode instead.");
wizard = 0, discover = 1; /* (paranoia) */
} else if (discover)
You("are in non-scoring explore/discovery mode.");
}
/*
* Add a slash to any name not ending in /. There must
* be room for the /
*/
void
append_slash(name)
char *name;
{
char *ptr;
if (!*name)
return;
ptr = name + (strlen(name) - 1);
if (*ptr != '/') {
*++ptr = '/';
*++ptr = '\0';
}
return;
}
/*unixmain.c*/