/* flags.c - flag manipulation routines */
#include "autoconf.h"
#include "copyright.h"
#ifndef lint
static char RCSid[] = "$Id: flags.c,v 1.8 1995/03/21 00:00:19 ambar Exp $";
USE(RCSid);
#endif
#include "externs.h"
#include "command.h"
#include "flags.h"
#include "alloc.h"
#ifndef STANDALONE
/* ---------------------------------------------------------------------------
* fh_any: set or clear indicated bit, no security checking
*/
int
fh_any(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (fflags & FLAG_EXT) {
if (reset)
s_Flags2(target, Flags2(target) & ~flag);
else
s_Flags2(target, Flags2(target) | flag);
} else {
if (reset)
s_Flags(target, Flags(target) & ~flag);
else
s_Flags(target, Flags(target) | flag);
}
return 1;
}
/* ---------------------------------------------------------------------------
* fh_god: only GOD may set or clear the bit
*/
int
fh_god(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (!God(player))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_wiz: only WIZARDS (or GOD) may set or clear the bit
*/
int
fh_wiz(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (!Wizard(player) & !God(player))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_inherit: only players may set or clear this bit.
*/
int
fh_inherit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (!Inherits(player))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_wiz_bit: Only GOD may set/clear this bit on others.
*/
int
fh_wiz_bit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (!God(player))
return 0;
if (God(target) && reset) {
notify(player, "You cannot make yourself mortal.");
return 0;
}
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_player_bit: Can set and reset this on everything but players.
*/
int fh_player_bit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (isPlayer(target))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_dark_bit: manipulate the dark bit. Nonwizards may not set on players.
*/
int
fh_dark_bit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (!reset && isPlayer(target) &&
(!Wizard(player) && !God(player)))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_going_bit: manipulate the going bit. Non-gods may only clear on rooms.
*/
int
fh_going_bit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
if (isRoom(target) && Going(target) && reset) {
notify(player, "Your room has been spared from destruction.");
return (fh_any(target, player, flag, fflags, reset));
}
if (!God(player))
return 0;
return (fh_any(target, player, flag, fflags, reset));
}
/* ---------------------------------------------------------------------------
* fh_hear_bit: set or clear bits that affect hearing.
*/
int
fh_hear_bit(target, player, flag, fflags, reset)
dbref target, player;
FLAG flag;
int fflags, reset;
{
int could_hear;
could_hear = Hearer(target);
fh_any(target, player, flag, fflags, reset);
handle_ears(target, could_hear, Hearer(target));
return 1;
}
FLAGENT gen_flags[] =
{
{"ABODE", ABODE, 'A',
FLAG_EXT, 0, fh_any},
{"BUILDER", BUILDER, 'B',
FLAG_EXT, 0, fh_wiz},
{"CHOWN_OK", CHOWN_OK, 'C',
0, 0, fh_any},
{"DARK", DARK, 'D',
0, 0, fh_dark_bit},
{"FLOATING", FLOATING, 'F',
FLAG_EXT, 0, fh_any},
{"GOING", GOING, 'G',
0, CA_NO_DECOMP, fh_going_bit},
{"HAVEN", HAVEN, 'H',
0, 0, fh_any},
{"INHERIT", INHERIT, 'I',
0, 0, fh_inherit},
{"JUMP_OK", JUMP_OK, 'J',
0, 0, fh_any},
{"KEY", KEY, 'K',
FLAG_EXT, 0, fh_any},
{"LINK_OK", LINK_OK, 'L',
0, 0, fh_any},
{"MONITOR", MONITOR, 'M',
0, 0, fh_hear_bit},
{"NOSPOOF", NOSPOOF, 'N',
0, CA_WIZARD, fh_any},
{"OPAQUE", OPAQUE, 'O',
0, 0, fh_any},
{"QUIET", QUIET, 'Q',
0, 0, fh_any},
{"STICKY", STICKY, 'S',
0, 0, fh_any},
{"TRACE", TRACE, 'T',
0, 0, fh_any},
{"UNFINDABLE", UNFINDABLE, 'U',
FLAG_EXT, 0, fh_any},
{"VISUAL", VISUAL, 'V',
0, 0, fh_any},
{"WIZARD", WIZARD, 'W',
0, 0, fh_wiz_bit},
{"ANSI", ANSI, 'X',
FLAG_EXT, 0, fh_any},
{"PARENT_OK", PARENT_OK, 'Y',
FLAG_EXT, 0, fh_any},
{"ZONE", ZONE_PARENT, 'Z',
FLAG_EXT, 0, fh_any},
{"AUDIBLE", HEARTHRU, 'a',
0, 0, fh_hear_bit},
{"BOUNCE", BOUNCE, 'b',
FLAG_EXT, 0, fh_any},
{"CONNECTED", CONNECTED, 'c',
FLAG_EXT, CA_NO_DECOMP, fh_god},
{"DESTROY_OK", DESTROY_OK, 'd',
0, 0, fh_any},
{"ENTER_OK", ENTER_OK, 'e',
0, 0, fh_any},
{"HALTED", HALT, 'h',
0, 0, fh_any},
{"IMMORTAL", IMMORTAL, 'i',
0, 0, fh_wiz},
{"TICKLER", TICKLER, 'k',
FLAG_EXT, 0, fh_god},
{"LIGHT", LIGHT, 'l',
FLAG_EXT, 0, fh_any},
{"MYOPIC", MYOPIC, 'm',
0, 0, fh_any},
{"PUPPET", PUPPET, 'p',
0, 0, fh_hear_bit},
{"TERSE", TERSE, 'q',
0, 0, fh_any},
{"ROBOT", ROBOT, 'r',
0, 0, fh_player_bit},
{"SAFE", SAFE, 's',
0, 0, fh_any},
{"TRANSPARENT", SEETHRU, 't',
0, 0, fh_any},
{"SUSPECT", SUSPECT, 'u',
FLAG_EXT, CA_WIZARD, fh_wiz},
{"VERBOSE", VERBOSE, 'v',
0, 0, fh_any},
{"SLAVE", SLAVE, 'x',
FLAG_EXT, CA_WIZARD, fh_wiz},
{"CONTROL_OK", CONTROL_OK, 'z',
0, 0, fh_any},
{"COMMANDS", HAS_COMMANDS, '$',
FLAG_EXT, 0, fh_any},
{"NOBLEED", NOBLEED, '-',
FLAG_EXT, 0, fh_any},
{"STOP", STOP_MATCH, '!',
FLAG_EXT, 0, fh_wiz},
{"HAS_STARTUP", HAS_STARTUP, '+',
0, CA_GOD | CA_NO_DECOMP, fh_god},
{"HAS_FORWARDLIST", HAS_FWDLIST, '&',
FLAG_EXT, CA_GOD | CA_NO_DECOMP, fh_god},
{"HAS_LISTEN", HAS_LISTEN, '@',
FLAG_EXT, CA_GOD | CA_NO_DECOMP, fh_god},
#ifdef PUEBLO_SUPPORT
{"HTML", HTML, 'w',
FLAG_EXT, 0, fh_any},
#endif /* PUEBLO_SUPPORT */
{NULL, 0, ' ',
0, 0, NULL}};
#endif /* STANDALONE */
OBJENT object_types[8] =
{
{"ROOM", 'R', CA_PUBLIC, OF_CONTENTS | OF_EXITS | OF_DROPTO | OF_HOME},
{"THING", ' ', CA_PUBLIC, OF_CONTENTS | OF_LOCATION | OF_EXITS | OF_HOME},
{"EXIT", 'E', CA_PUBLIC, 0},
{"PLAYER", 'P', CA_PUBLIC,
OF_CONTENTS | OF_LOCATION | OF_EXITS | OF_HOME | OF_OWNER},
{"TYPE4", '?', CA_PUBLIC,
OF_CONTENTS | OF_LOCATION | OF_EXITS | OF_HOME | OF_OWNER},
{"TYPE5", '+', CA_GOD, 0},
{"TYPE6", '-', CA_GOD, 0},
{"GARBAGE", '*', CA_GOD, 0}};
#ifndef STANDALONE
/* ---------------------------------------------------------------------------
* init_flagtab: initialize flag hash tables.
*/
void
NDECL(init_flagtab)
{
FLAGENT *fp;
char *nbuf, *np, *bp;
hashinit(&mudstate.flags_htab, 67);
nbuf = alloc_sbuf("init_flagtab");
for (fp = gen_flags; fp->flagname; fp++) {
for (np = nbuf, bp = (char *) fp->flagname; *bp; np++, bp++)
*np = ToLower(*bp);
*np = '\0';
hashadd(nbuf, (int *) fp, &mudstate.flags_htab);
}
free_sbuf(nbuf);
}
/* ---------------------------------------------------------------------------
* display_flags: display available flags.
*/
void
display_flagtab(player)
dbref player;
{
char *buf, *bp;
FLAGENT *fp;
bp = buf = alloc_lbuf("display_flagtab");
safe_str((char *) "Flags:", buf, &bp);
for (fp = gen_flags; fp->flagname; fp++) {
if ((fp->listperm & CA_WIZARD) && !Wizard(player))
continue;
if ((fp->listperm & CA_GOD) && !God(player))
continue;
safe_chr(' ', buf, &bp);
safe_str((char *) fp->flagname, buf, &bp);
safe_chr('(', buf, &bp);
safe_chr(fp->flaglett, buf, &bp);
safe_chr(')', buf, &bp);
}
notify(player, buf);
free_lbuf(buf);
}
FLAGENT *
find_flag(thing, flagname)
dbref thing;
char *flagname;
{
char *cp;
/* Make sure the flag name is valid */
for (cp = flagname; *cp; cp++)
*cp = ToLower(*cp);
return (FLAGENT *) hashfind(flagname, &mudstate.flags_htab);
}
/* ---------------------------------------------------------------------------
* flag_set: Set or clear a specified flag on an object.
*/
void
flag_set(target, player, flag, key)
dbref target, player;
char *flag;
int key;
{
FLAGENT *fp;
int negate, result;
/* Trim spaces, and handle the negation character */
negate = 0;
while (*flag && isspace(*flag))
flag++;
if (*flag == '!') {
negate = 1;
flag++;
}
while (*flag && isspace(*flag))
flag++;
/* Make sure a flag name was specified */
if (*flag == '\0') {
if (negate)
notify(player, "You must specify a flag to clear.");
else
notify(player, "You must specify a flag to set.");
return;
}
fp = find_flag(target, flag);
if (fp == NULL) {
notify(player, "I don't understand that flag.");
return;
}
/* Invoke the flag handler, and print feedback */
result = fp->handler(target, player, fp->flagvalue,
fp->flagflag, negate);
if (!result)
notify(player, "Permission denied.");
else if (!(key & SET_QUIET) && !Quiet(player))
notify(player, (negate ? "Cleared." : "Set."));
return;
}
/* ---------------------------------------------------------------------------
* decode_flags: converts a flags word into corresponding letters.
*/
char *
decode_flags(player, flagword, flag2word)
dbref player;
FLAG flagword, flag2word;
{
char *buf, *bp;
FLAGENT *fp;
int flagtype;
FLAG fv;
buf = bp = alloc_sbuf("decode_flags");
*bp = '\0';
if (!Good_obj(player)) {
strcpy(buf, "#-2 ERROR");
return buf;
}
flagtype = (flagword & TYPE_MASK);
if (object_types[flagtype].lett != ' ') {
safe_sb_chr(object_types[flagtype].lett, buf, &bp);
}
for (fp = gen_flags; fp->flagname; fp++) {
if (fp->flagflag & FLAG_EXT)
fv = flag2word;
else
fv = flagword;
if (fv & fp->flagvalue) {
if ((fp->listperm & CA_WIZARD) && !Wizard(player))
continue;
if ((fp->listperm & CA_GOD) && !God(player))
continue;
/* don't show CONNECT on dark wizards to mortals */
if ((flagtype == TYPE_PLAYER) &&
(fp->flagvalue == CONNECTED) &&
((flagword & (WIZARD | DARK)) == (WIZARD | DARK)) &&
!Wizard(player))
continue;
safe_sb_chr(fp->flaglett, buf, &bp);
}
}
*bp = '\0';
return buf;
}
/* ---------------------------------------------------------------------------
* has_flag: does object have flag visible to player?
*/
int
has_flag(player, it, flagname)
dbref player, it;
char *flagname;
{
FLAGENT *fp;
FLAG fv;
fp = find_flag(it, flagname);
if (fp == NULL)
return 0;
if (fp->flagflag & FLAG_EXT)
fv = Flags2(it);
else
fv = Flags(it);
if (fv & fp->flagvalue) {
if ((fp->listperm & CA_WIZARD) && !Wizard(player))
return 0;
if ((fp->listperm & CA_GOD) && !God(player))
return 0;
/* don't show CONNECT on dark wizards to mortals */
if (isPlayer(it) &&
(fp->flagflag & FLAG_EXT) && (fp->flagvalue == CONNECTED) &&
((Flags(it) & (WIZARD | DARK)) == (WIZARD | DARK)) &&
!Wizard(player))
return 0;
return 1;
}
return 0;
}
/* ---------------------------------------------------------------------------
* flag_description: Return an mbuf containing the type and flags on thing.
*/
char *
flag_description(player, target)
dbref player, target;
{
char *buff, *bp;
FLAGENT *fp;
int otype;
FLAG fv;
/* Allocate the return buffer */
otype = Typeof(target);
bp = buff = alloc_mbuf("flag_description");
/* Store the header strings and object type */
safe_mb_str((char *) "Type: ", buff, &bp);
safe_mb_str((char *) object_types[otype].name, buff, &bp);
safe_mb_str((char *) " Flags:", buff, &bp);
if (object_types[otype].perm != CA_PUBLIC) {
return buff;
}
/* Store the type-invariant flags */
for (fp = gen_flags; fp->flagname; fp++) {
if (fp->flagflag & FLAG_EXT)
fv = Flags2(target);
else
fv = Flags(target);
if (fv & fp->flagvalue) {
if ((fp->listperm & CA_WIZARD) && !Wizard(player))
continue;
if ((fp->listperm & CA_GOD) && !God(player))
continue;
/* don't show CONNECT on dark wizards to mortals */
if (isPlayer(target) &&
(fp->flagvalue == CONNECTED) &&
((Flags(target) & (WIZARD | DARK)) == (WIZARD | DARK)) &&
!Wizard(player))
continue;
safe_mb_chr(' ', buff, &bp);
safe_mb_str((char *) fp->flagname, buff, &bp);
}
}
return buff;
}
/* ---------------------------------------------------------------------------
* Return an lbuf containing the name and number of an object
*/
char *
unparse_object_numonly(target)
dbref target;
{
char *buf;
buf = alloc_lbuf("unparse_object_numonly");
if (target == NOTHING) {
strcpy(buf, "*NOTHING*");
} else if (target == HOME) {
strcpy(buf, "*HOME*");
} else if (!Good_obj(target)) {
sprintf(buf, "*ILLEGAL*(#%d)", target);
} else {
sprintf(buf, "%s(#%d)", Name(target), target);
}
return buf;
}
/* ---------------------------------------------------------------------------
* Return an lbuf pointing to the object name and possibly the db# and flags
*/
char *
unparse_object(player, target, obey_myopic)
dbref player, target;
int obey_myopic;
{
char *buf, *fp;
int exam;
buf = alloc_lbuf("unparse_object");
if (target == NOTHING) {
strcpy(buf, "*NOTHING*");
} else if (target == HOME) {
strcpy(buf, "*HOME*");
} else if (!Good_obj(target)) {
sprintf(buf, "*ILLEGAL*(#%d)", target);
} else {
if (obey_myopic)
exam = MyopicExam(player, target);
else
exam = Examinable(player, target);
if (exam ||
(Flags(target) & (CHOWN_OK | JUMP_OK | LINK_OK | DESTROY_OK)) ||
(Flags2(target) & ABODE)) {
/* show everything */
fp = unparse_flags(player, target);
sprintf(buf, "%s(#%d%s)", Name(target), target, fp);
free_sbuf(fp);
} else {
/* show only the name. */
strcpy(buf, Name(target));
}
}
return buf;
}
/* ---------------------------------------------------------------------------
* convert_flags: convert a list of flag letters into its bit pattern.
* Also set the type qualifier if specified and not already set.
*/
int
convert_flags(player, flaglist, fset, p_type)
dbref player;
char *flaglist;
FLAGSET *fset;
FLAG *p_type;
{
int i, handled;
char *s;
FLAG flag1mask, flag2mask, type;
FLAGENT *fp;
flag1mask = flag2mask = 0;
type = NOTYPE;
for (s = flaglist; *s; s++) {
handled = 0;
/* Check for object type */
for (i = 0; (i <= 7) && !handled; i++) {
if ((object_types[i].lett == *s) &&
!(((object_types[i].perm & CA_WIZARD) &&
!Wizard(player)) ||
((object_types[i].perm & CA_GOD) &&
!God(player)))) {
if ((type != NOTYPE) && (type != i)) {
notify(player,
tprintf("%c: Conflicting type specifications.",
*s));
return 0;
}
type = i;
handled = 1;
}
}
/* Check generic flags */
if (handled)
continue;
for (fp = gen_flags; (fp->flagname) && !handled; fp++) {
if ((fp->flaglett == *s) &&
!(((fp->listperm & CA_WIZARD) &&
!Wizard(player)) ||
((fp->listperm & CA_GOD) &&
!God(player)))) {
if (fp->flagflag & FLAG_EXT)
flag2mask |= fp->flagvalue;
else
flag1mask |= fp->flagvalue;
handled = 1;
}
}
if (!handled) {
notify(player,
tprintf("%c: Flag unknown or not valid for specified object type",
*s));
return 0;
}
}
/* return flags to search for and type */
(*fset).word1 = flag1mask;
(*fset).word2 = flag2mask;
*p_type = type;
return 1;
}
/* ---------------------------------------------------------------------------
* decompile_flags: Produce commands to set flags on target.
*/
void
decompile_flags(player, thing, thingname)
dbref player, thing;
char *thingname;
{
FLAG f1, f2;
FLAGENT *fp;
/* Report generic flags */
f1 = Flags(thing);
f2 = Flags2(thing);
for (fp = gen_flags; fp->flagname; fp++) {
/* Skip if we shouldn't decompile this flag */
if (fp->listperm & CA_NO_DECOMP)
continue;
/* Skip if this flag is not set */
if (fp->flagflag & FLAG_EXT) {
if (!(f2 & fp->flagvalue))
continue;
} else {
if (!(f1 & fp->flagvalue))
continue;
}
/* Skip if we can't see this flag */
if (!check_access(player, fp->listperm))
continue;
/* We made it this far, report this flag */
notify(player, tprintf("@set %s=%s", thingname, fp->flagname));
}
}
/* Guest - is the given dbref one of the Guest characters? */
#ifdef __STDC__
int
Guest(dbref thing)
#else
int
Guest(thing)
dbref thing;
#endif
{
int i;
for (i = 0; i < mudconf.num_guests; i++)
if (Owner(thing) == mudconf.guest_chars[i])
return 1;
return 0;
}
#endif /* STANDALONE */