billr@saab.CNA.TEK.COM (Bill Randle) (07/30/90)
Submitted-by: James Aspnes <asp@cs.cmu.edu>
Posting-number: Volume 11, Issue 12
Archive-name: tinymud2/Part08
Supersedes: tinymud: Volume 8, Issue 80-83
#! /bin/sh
# This is a shell archive. Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file". To overwrite existing
# files, type "sh file -c". You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g.. If this archive is complete, you
# will see the following message at the end:
# "End of archive 8 (of 10)."
# Contents: conc.c dump.c extract.c minimal.db oldinterface.c
# Wrapped by billr@saab on Fri Jul 27 15:27:49 1990
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'conc.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'conc.c'\"
else
echo shar: Extracting \"'conc.c'\" \(11809 characters\)
sed "s/^X//" >'conc.c' <<'END_OF_FILE'
X/* tinyMUD port concentrator by Robert Hood */
X/* Revision 2.0 */
X
X#include <stdio.h>
X#include <signal.h>
X#include <sys/param.h>
X#include <sys/types.h>
X#include <sys/socket.h>
X#include <netinet/in.h>
X#include <sys/time.h>
X#include <sys/errno.h>
X#include <fcntl.h>
X#include <netdb.h>
X#include "config.h"
X
Xvoid queue_message(int port, char *data, int len);
Xvoid writelog(const char *fmt,...);
X
X#define BUFLEN 65536
X#define CONC_MESSAGE "[ Connected to the TinyMUD port concentrator ]\n"
X#define PANIC_MESSAGE "\nGoing Down - Bye!\n"
X
Xstruct message
X{
X char *data;
X short len;
X struct message *next;
X};
X
Xstruct conc_list
X{
X char status;
X
X /*
X * Status: 0 = Not connected 1 = Connected 2 = Disconnecting (waiting till
X * queue is empty)
X */
X struct message *first, *last;
X} *clist;
X
Xint mud_sock;
Xint sock;
Xint pid;
X
Xint port = TINYPORT;
Xint intport = INTERNAL_PORT;
Xint clvl = 1;
X
Xmain(argc, argv)
X int argc;
X char *argv[];
X{
X int l;
X
X if (argc > 1)
X port = atoi(argv[1]);
X if (argc > 2)
X intport = atoi(argv[2]);
X if (argc > 3)
X clvl = atoi(argv[3]);
X
X signal(SIGPIPE, SIG_IGN); /* Ignore I/O signals */
X for (l = 3; l < NOFILE; ++l) /* Close all files from last process */
X close(l); /* except stdin, stdout, stderr */
X pid = 1;
X connect_mud(); /* Connect to interface.c */
X setup(); /* Setup listen port */
X mainloop(); /* main loop */
X}
X
Xconnect_mud()
X{
X int temp;
X struct sockaddr_in sin;
X
X mud_sock = 0;
X while (mud_sock == 0)
X {
X mud_sock = socket(AF_INET, SOCK_STREAM, 0);
X if (mud_sock < 0)
X {
X perror("socket");
X mud_sock = 0;
X } else
X {
X temp = 1;
X setsockopt(mud_sock, SOL_SOCKET, SO_REUSEADDR, (char *)&temp, sizeof(temp));
X sin.sin_family = AF_INET;
X sin.sin_port = htons(intport);
X sin.sin_addr.s_addr = htonl(0x7F000001);
X temp = connect(mud_sock, (struct sockaddr *) & sin, sizeof(sin));
X if (temp < 0)
X {
X perror("connect");
X close(mud_sock);
X mud_sock = 0;
X }
X }
X if (mud_sock == 0)
X {
X sleep(1);
X fputs("retrying....\n", stderr);
X }
X }
X if (fcntl(mud_sock, F_SETFL, FNDELAY) == -1)
X {
X perror("make_nonblocking: fcntl");
X }
X if (fcntl(mud_sock, F_SETFD, 1) == -1)
X {
X perror("close on execve: fcntl");
X }
X#ifdef DEBUG
X fputs("connected!\n", stderr);
X#endif
X}
X
Xsetup()
X{
X int temp;
X struct sockaddr_in sin;
X
X sock = socket(AF_INET, SOCK_STREAM, 0);
X if (sock < 1)
X {
X perror("socket");
X exit(-1);
X }
X temp = 1;
X setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&temp, sizeof(temp));
X sin.sin_family = AF_INET;
X sin.sin_port = htons(port);
X sin.sin_addr.s_addr = htonl(INADDR_ANY);
X
X temp = bind(sock, (struct sockaddr *) & sin, sizeof(sin));
X if (temp < 0)
X {
X perror("bind");
X exit(1);
X }
X temp = listen(sock, 5);
X if (temp < 0)
X {
X perror("listen");
X exit(1);
X }
X}
X
Xmainloop()
X{
X int found, newsock, lastsock, len, loop;
X int accepting, current = 0;
X int temp;
X struct timeval tv;
X struct sockaddr_in sin;
X struct hostent *hent;
X fd_set in, out;
X char *data;
X char *buf, header[4];
X struct conc_list *cptr;
X struct message *tmsg;
X short templen;
X char *mainbuf, *outbuf;
X int mainlen, outlen;
X int command;
X int hlen;
X char *hostnm;
X
X /* Allocate huge buffer */
X data = (char *)malloc(65536);
X /* Allocate array, one for each possible socket */
X clist = (struct conc_list *) malloc(sizeof(struct conc_list) * NOFILE);
X /* Allocate I/O buffers for main I/O socket */
X mainbuf = (char *)malloc(BUFLEN);
X mainlen = 0;
X outbuf = (char *)malloc(BUFLEN);
X outlen = 0;
X if (!data || !clist || !mainbuf || !outbuf)
X {
X perror("malloc");
X exit(1);
X }
X /* Init array */
X for (loop = 0; loop < NOFILE; ++loop)
X {
X cptr = &(clist[loop]);
X cptr->status = 0;
X cptr->first = 0;
X cptr->last = 0;
X }
X
X /*
X * Accept connections flag ON accepting = 1; /* lastsock for select()
X */
X lastsock = sock + 1;
X /* mud_sock has already been established */
X clist[mud_sock].status = 1;
X /* Special port # for control messages */
X clist[0].status = 1;
X while (1)
X {
X if (pid < 0)
X {
X pid = vfork();
X }
X if (pid == 0)
X {
X char pstr[32], istr[32], cstr[32];
X sprintf(pstr, "%d", port);
X sprintf(istr, "%d", intport);
X sprintf(cstr, "%d", clvl + 1);
X execlp("concentrate", "conc", pstr, istr, cstr, 0);
X writelog("CONC %d:ACK!!!!!! exec failed! Exiting...\n", clvl);
X exit(1);
X /* Gee...now what? Should I try again? */
X }
X /* zero out port selector masks */
X FD_ZERO(&in);
X FD_ZERO(&out);
X
X /* set apropriate bit masks for I/O */
X if (accepting)
X FD_SET(sock, &in);
X for (loop = 1; loop < NOFILE; ++loop)
X {
X cptr = &(clist[loop]);
X if (cptr->status)
X {
X FD_SET(loop, &in);
X if (cptr->first)
X FD_SET(loop, &out);
X }
X }
X if (outlen > 0)
X FD_SET(loop, &out);
X
X /* timeout for select */
X tv.tv_sec = 1000;
X tv.tv_usec = 0;
X
X /* look for ports waiting for I/O */
X found = select(lastsock, &in, &out, (fd_set *) 0, &tv);
X /* None found, skip the rest... */
X if (found < 0)
X continue;
X /* New connection? */
X if (accepting && FD_ISSET(sock, &in))
X {
X len = sizeof(sin);
X newsock = accept(sock, (struct sockaddr *) & sin, &len);
X /* This limits the # of connections per concentrator */
X if (newsock >= (NOFILE - 5))
X {
X close(sock);
X accepting = 0;
X pid = -1;
X }
X if (newsock >= lastsock)
X lastsock = newsock + 1;
X cptr = &(clist[newsock]);
X cptr->status = 1;
X cptr->first = 0;
X cptr->last = 0;
X /* set to non-blocking mode */
X if (fcntl(newsock, F_SETFL, FNDELAY) == -1)
X {
X perror("make_nonblocking: fcntl");
X }
X /* set to close on execv */
X if (fcntl(newsock, F_SETFD, 1) == -1)
X {
X perror("close on execv: fcntl");
X }
X temp = 1;
X if (setsockopt(newsock, SOL_SOCKET, SO_KEEPALIVE, (char *)&temp,
X sizeof(temp)) < 0)
X {
X perror("keepalive setsockopt");
X }
X queue_message(newsock, CONC_MESSAGE, sizeof(CONC_MESSAGE) - 1);
X /* build control code for connect */
X data[0] = 0;
X data[1] = 1; /* connect */
X data[2] = newsock;
X bcopy(&(sin.sin_addr.s_addr), data + 3, 4);
X hent = gethostbyaddr(&(sin.sin_addr.s_addr),
X sizeof(sin.sin_addr.s_addr), AF_INET);
X if (hent)
X strcpy(data + 7, hent->h_name);
X else
X strcpy(data + 7, inet_ntoa(sin.sin_addr.s_addr));
X queue_message(mud_sock, data, 7 + strlen(data + 7));
X#ifdef DEBUG
X writelog("CONC %d: USER CONNECT: sock %d, host %s\n", clvl,
X newsock, data + 7);
X#endif
X }
X /* recieve data from ports */
X for (loop = 0; loop < NOFILE; ++loop)
X {
X cptr = &(clist[loop]);
X if (cptr->status && FD_ISSET(loop, &in))
X {
X if (loop == 0)
X {
X } else
X if (loop == mud_sock)
X {
X if (mainlen < BUFLEN)
X {
X len = recv(loop, mainbuf + mainlen,
X BUFLEN - mainlen, 0);
X if (len <= 0)
X {
X /* This is quite useless, but what else am I supposed to do? */
X writelog("CONC %d: Lost Connection\n", clvl);
X panic();
X }
X mainlen += len;
X }
X while (mainlen > 2)
X {
X bcopy(mainbuf, &templen, 2);
X if (mainlen >= (templen + 2))
X {
X queue_message(*(mainbuf + 2), mainbuf + 3,
X templen - 1);
X mainlen = mainlen - templen - 2;
X bcopy(mainbuf + templen + 2, mainbuf, mainlen);
X } else
X break;
X }
X } else
X {
X /* data + 1 so we can add port later w/o a bcopy */
X len = recv(loop, data + 1, 65530, 0);
X if (len == 0)
X {
X disconnect(loop);
X } else
X if (len < 0)
X {
X /* Hmm..... */
X writelog("CONC %d: recv: %s\n", clvl, strerror(errno));
X } else
X {
X /* Add the port # to the data, and send it to interface.c */
X data[0] = loop;
X queue_message(mud_sock, data, len + 1);
X }
X }
X }
X }
X /* Handle output */
X for (loop = 0; loop < NOFILE; ++loop)
X {
X cptr = &(clist[loop]);
X if ((loop == 0) && (cptr->first))
X {
X command = *(cptr->first->data);
X switch (command)
X {
X case 2: /* disconnect */
X if (clist[*(cptr->first->data + 1)].status)
X clist[*(cptr->first->data + 1)].status = 2;
X else
X writelog("CONC %d: Recieved dissconnect for unknown user\n", clvl);
X break;
X default:
X writelog("CONC %d: Recieved unknown command %d\n", clvl, command);
X break;
X }
X free(cptr->first->data);
X tmsg = cptr->first;
X cptr->first = cptr->first->next;
X free(tmsg);
X if (!cptr->first)
X cptr->last = 0;
X } else
X if ((loop == mud_sock) && FD_ISSET(mud_sock, &out) &&
X ((cptr->first) || (outlen > 0)))
X {
X while ((cptr->first) &&
X ((BUFLEN - outlen) > (cptr->first->len + 2)))
X {
X templen = cptr->first->len;
X bcopy(&(templen), outbuf + outlen, 2);
X bcopy(cptr->first->data, outbuf + outlen + 2, templen);
X outlen += templen + 2;
X free(cptr->first->data);
X tmsg = cptr->first;
X cptr->first = cptr->first->next;
X free(tmsg);
X if (!cptr->first)
X cptr->last = 0;
X }
X
X if (outlen)
X {
X len = send(mud_sock, outbuf, outlen, 0);
X if (len > 0)
X {
X outlen -= len;
X bcopy(outbuf + len, outbuf, outlen);
X }
X else
X {
X panic();
X }
X }
X } else
X if (FD_ISSET(loop, &out) && (cptr->first))
X {
X len = send(loop, cptr->first->data, cptr->first->len, 0);
X free(cptr->first->data);
X tmsg = cptr->first;
X cptr->first = cptr->first->next;
X free(tmsg);
X if (!cptr->first)
X cptr->last = 0;
X }
X /* Test for pending disconnect */
X else
X if ((cptr->status == 2) && (cptr->first == 0))
X {
X cptr->status = 0;
X shutdown(loop, 0);
X close(loop);
X }
X }
X /* Test for emptyness */
X if (!accepting)
X {
X for (loop = mud_sock + 1; loop < NOFILE; ++loop)
X if (clist[loop].status)
X break;
X if (loop == NOFILE)
X exit(0);
X }
X }
X}
X
X/* Properly disconnect a user */
Xdisconnect(user)
X int user;
X{
X char header[4];
X
X /* make control message for disconnect */
X header[0] = 0;
X header[1] = 2; /* disconnect code */
X header[2] = user;
X queue_message(mud_sock, header, 3);
X
X /* shutdown this socket */
X clist[user].status = 0;
X close(user);
X#ifdef DEBUG
X writelog("CONC %d: USER DISCONNECT: %d\n", clvl, user);
X#endif
X}
X
Xvoid queue_message(int port, char *data, int len)
X{
X struct message *ptr;
X
X ptr = (struct message *) malloc(sizeof(struct message));
X ptr->data = (char *)malloc(len);
X ptr->len = len;
X bcopy(data, ptr->data, len);
X ptr->next = 0;
X if (clist[port].last == 0)
X clist[port].first = ptr;
X else
X (clist[port].last)->next = ptr;
X clist[port].last = ptr;
X}
X
X/* Kill off all connections quickly */
Xpanic()
X{
X int loop;
X
X for (loop = 1; loop < NOFILE; ++loop)
X {
X if (clist[loop].status)
X {
X send(loop, PANIC_MESSAGE, sizeof(PANIC_MESSAGE), 0);
X shutdown(loop, 0);
X close(loop);
X }
X }
X exit(1);
X}
X
X/* Modified to send stuff to the main server for logging */
Xvoid writelog(const char *fmt,...)
X{
X va_list list;
X struct tm *tm;
X long t;
X char buffer[2048];
X
X va_start(list, fmt);
X vsprintf(buffer + 2, fmt, list);
X buffer[0] = 0;
X buffer[1] = 4; /* remote log command */
X queue_message(mud_sock, buffer, strlen(buffer + 2) + 2);
X va_end(list);
X}
END_OF_FILE
if test 11809 -ne `wc -c <'conc.c'`; then
echo shar: \"'conc.c'\" unpacked with wrong size!
fi
# end of 'conc.c'
fi
if test -f 'dump.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'dump.c'\"
else
echo shar: Extracting \"'dump.c'\" \(3229 characters\)
sed "s/^X//" >'dump.c' <<'END_OF_FILE'
X#include "copyright.h"
X
X#include <stdio.h>
X
X#include "db.h"
X
X#ifndef COMPRESS
X#define uncompress(x) (x)
X#else
Xconst char *uncompress(const char *s);
X#endif /* COMPRESS */
X
Xconst char *unparse_object(dbref player, dbref loc);
X
X/* in a dump, you can see everything */
Xint can_link_to(dbref who, object_flag_type what, dbref where)
X{
X return 1;
X}
X
Xint controls(dbref who, dbref what)
X{
X return 1;
X}
X
Xvoid main(int argc, char **argv)
X{
X struct object *o;
X dbref owner;
X dbref thing;
X
X if(argc < 1) {
X fprintf(stderr, "Usage: %s [owner]\n", *argv);
X exit(1);
X }
X
X if(argc >= 2) {
X owner = atol(argv[1]);
X } else {
X owner = NOTHING;
X }
X
X if(db_read(stdin) < 0) {
X fprintf(stderr, "%s: bad input\n", argv[0]);
X exit(5);
X }
X
X for(o = db; o < db+db_top; o++) {
X /* don't show exits separately */
X if((o->flags & TYPE_MASK) == TYPE_EXIT) continue;
X
X /* don't show it if it isn't owned by the right player */
X if(owner != NOTHING && o->owner != owner) continue;
X
X printf("#%d: %s [%s] at %s Pennies: %d Type: ",
X o - db, o->name, db[o->owner].name,
X unparse_object(owner, o->location),
X o->pennies);
X switch(o->flags & TYPE_MASK) {
X case TYPE_ROOM:
X printf("Room");
X break;
X case TYPE_EXIT:
X printf("Exit");
X break;
X case TYPE_THING:
X printf("Thing");
X break;
X case TYPE_PLAYER:
X printf("Player");
X break;
X default:
X printf("***UNKNOWN TYPE***");
X break;
X }
X
X /* handle flags */
X putchar(' ');
X if(o->flags & ~TYPE_MASK) {
X printf("Flags: ");
X if(o->flags & LINK_OK) printf("LINK_OK ");
X if(o->flags & DARK) printf("DARK ");
X if(o->flags & STICKY) printf("STICKY ");
X if(o->flags & WIZARD) printf("WIZARD ");
X if(o->flags & TEMPLE) printf("TEMPLE ");
X#ifdef RESTRICTED_BUILDING
X if(o->flags & BUILDER) printf("BUILDER ");
X#endif /* RESTRICTED_BUILDING */
X }
X putchar('\n');
X
X if(o->key != TRUE_BOOLEXP) printf("KEY: %s\n",
X unparse_boolexp(owner, o->key));
X if(o->description) {
X puts("Description:");
X puts(uncompress(o->description));
X }
X if(o->succ_message) {
X puts("Success Message:");
X puts(uncompress(o->succ_message));
X }
X if(o->fail_message) {
X puts("Fail Message:");
X puts(uncompress(o->fail_message));
X }
X if(o->ofail) {
X puts("Other Fail Message:");
X puts(uncompress(o->ofail));
X }
X if(o->osuccess) {
X puts("Other Success Message:");
X puts(uncompress(o->osuccess));
X }
X if(o->contents != NOTHING) {
X puts("Contents:");
X DOLIST(thing, o->contents) {
X /* dump thing description */
X putchar(' ');
X puts(unparse_object(owner, thing));
X }
X }
X if(o->exits != NOTHING) {
X if((o->flags & TYPE_MASK) == TYPE_ROOM) {
X puts("Exits:");
X DOLIST(thing, o->exits) {
X printf(" %s", unparse_object(owner, thing));
X if(db[thing].key != TRUE_BOOLEXP) {
X printf(" KEY: %s",
X unparse_boolexp(owner, db[thing].key));
X }
X if(db[thing].location != NOTHING) {
X printf(" => %s\n",
X unparse_object(owner, db[thing].location));
X } else {
X puts(" ***OPEN***");
X }
X }
X } else {
X printf("Home: %s\n", unparse_object(owner, o->exits));
X }
X }
X putchar('\n');
X }
X
X exit(0);
X}
END_OF_FILE
if test 3229 -ne `wc -c <'dump.c'`; then
echo shar: \"'dump.c'\" unpacked with wrong size!
fi
# end of 'dump.c'
fi
if test -f 'extract.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'extract.c'\"
else
echo shar: Extracting \"'extract.c'\" \(10634 characters\)
sed "s/^X//" >'extract.c' <<'END_OF_FILE'
X#include "copyright.h"
X
X#include <stdio.h>
X#include <ctype.h>
X#include <sys/param.h>
X
X#include "db.h"
X
Xstatic int include_all = 0; /* include everything unless specified */
Xstatic int keep_players = 0; /* keep all players */
Xstatic int safe_below = 1; /* Keep everything <= safe_below */
Xstatic int safe_above = 2e9; /* Keep everything >= safe_above */
Xstatic int reachable = 0; /* Only keep rooms reachable from #0 */
Xstatic int norecycle = 0; /* Exclude things in recycling center */
Xstatic int inbuild = 0; /* True when in main nuild_trans loop */
Xstatic int recycling_center = 0;/* Room number home("Recycler") */
X
X# define REACH_FLAG 0x40000000
X# define REACHABLE(X) (db[X].flags & REACH_FLAG)
X# define SET_REACHABLE(X) (db[X].flags |= REACH_FLAG)
X
Xstatic dbref included[NCARGS+1];
Xstatic dbref excluded[NCARGS+1];
X
Xstatic dbref *trans; /* translation vector */
X
X#define DEFAULT_LOCATION (0)
X#define DEFAULT_OWNER (1)
X
Xstatic int isok(dbref);
X
X/* returns 1 if object is specifically excluded */
Xstatic int is_excluded(dbref x)
X{
X int i;
X
X if(x == NOTHING) return 0; /* Don't exclude nothing */
X
X /* check that it isn't excluded */
X for(i = 0; excluded[i] != NOTHING; i++) {
X if(excluded[i] == x) return 1; /* always exclude specifics */
X if(excluded[i] == db[x].owner) return 1;
X }
X
X return (0);
X}
X
X/* returns 1 if it is not excluded */
Xstatic int not_excluded(dbref x)
X{
X int i;
X
X if(x == NOTHING) return 1; /* Don't exclude nothing */
X
X /* check that it isn't excluded */
X for(i = 0; excluded[i] != NOTHING; i++) {
X if(excluded[i] == x) return 0; /* always exclude specifics */
X if(excluded[i] == db[x].owner) return 0;
X }
X
X /* if it's an exit, check that its destination is ok */
X if(Typeof(x) == TYPE_EXIT && db[x].location >= 0) {
X return isok(db[x].location);
X } else {
X return 1;
X }
X}
X
X/* returns 1 if it should be included in translation vector */
Xstatic int isok(dbref x)
X{
X int i;
X
X if(x == DEFAULT_OWNER || x == DEFAULT_LOCATION) return 1;
X if(x == NOTHING) return 1;
X
X for(i = 0; included[i] != NOTHING; i++) {
X if(included[i] == x) return 1; /* always get specific ones */
X
X if(reachable && Typeof(x) == TYPE_ROOM && !REACHABLE(x))
X {
X# ifdef DEBUG
X if (inbuild)
X fprintf (stderr, "Excluding %s(%dR), not reachable\n",
X db[x].name, x);
X# endif
X return 0;
X }
X
X if(norecycle && db[x].location == recycling_center) return 0;
X
X if(included[i] == db[x].owner
X || (x <= safe_below || x >= safe_above)
X || keep_players && Typeof(x) == TYPE_PLAYER) {
X return not_excluded(x);
X }
X }
X
X /* not in the list, can only get it if include_all is on */
X /* or it's owned by DEFAULT_OWNER */
X return (include_all && not_excluded(x));
X}
X
Xstatic void build_trans(void)
X{
X dbref i;
X dbref val;
X
X if((trans = (dbref *) malloc(sizeof(dbref) * db_top)) == 0) {
X abort();
X }
X
X inbuild++;
X
X val = 0;
X for(i = 0; i < db_top; i++) {
X if(isok(i)) {
X trans[i] = val++;
X } else {
X trans[i] = NOTHING;
X }
X }
X
X inbuild--;
X}
X
Xstatic dbref translate(dbref x)
X{
X if(x == NOTHING || x == HOME) {
X return(x);
X } else {
X return(trans[x]);
X }
X}
X
X/* TRUE_BOOLEXP means throw this argument out */
X/* even on OR; it's effectively a null boolexp */
X/* NOTE: this doesn't free anything, it just munges it up */
Xstatic struct boolexp *translate_boolexp(struct boolexp *exp)
X{
X struct boolexp *s1;
X struct boolexp *s2;
X
X if(exp == TRUE_BOOLEXP) {
X return TRUE_BOOLEXP;
X } else {
X switch(exp->type) {
X case BOOLEXP_NOT:
X s1 = translate_boolexp(exp->sub1);
X if(s1 == TRUE_BOOLEXP) {
X return TRUE_BOOLEXP;
X } else {
X exp->sub1 = s1;
X return exp;
X }
X /* break; */
X case BOOLEXP_AND:
X case BOOLEXP_OR:
X s1 = translate_boolexp(exp->sub1);
X s2 = translate_boolexp(exp->sub2);
X if(s1 == TRUE_BOOLEXP && s2 == TRUE_BOOLEXP) {
X /* nothing left */
X return TRUE_BOOLEXP;
X } else if(s1 == TRUE_BOOLEXP && s2 != TRUE_BOOLEXP) {
X /* s2 is all that is left */
X return s2;
X } else if(s1 != TRUE_BOOLEXP && s2 == TRUE_BOOLEXP) {
X /* s1 is all that is left */
X return s1;
X } else {
X exp->sub1 = s1;
X exp->sub2 = s2;
X return exp;
X }
X /* break; */
X case BOOLEXP_CONST:
X exp->thing = translate(exp->thing);
X if(exp->thing == NOTHING) {
X return TRUE_BOOLEXP;
X } else {
X return exp;
X }
X /* break; */
X default:
X abort(); /* bad boolexp type, we lose */
X return TRUE_BOOLEXP;
X }
X }
X}
X
Xstatic int ok(dbref x)
X{
X if(x == NOTHING || x == HOME) {
X return 1;
X } else {
X return trans[x] != NOTHING;
X }
X}
X
Xstatic void check_bad_exits(dbref x)
X{
X dbref e;
X
X if(Typeof(x) == TYPE_ROOM && !isok(x)) {
X /* mark all exits as excluded */
X DOLIST(e, db[x].exits) {
X trans[e] = NOTHING;
X }
X }
X}
X
Xstatic void check_owner(dbref x)
X{
X if(ok(x) && !ok(db[x].owner)) {
X db[x].owner = DEFAULT_OWNER;
X }
X}
X
Xstatic void check_location(dbref x)
X{
X dbref loc;
X dbref newloc;
X
X if(ok(x) && (Typeof(x) == TYPE_THING || Typeof(x) == TYPE_PLAYER)
X && !ok(loc = db[x].location)) {
X /* move it to home or DEFAULT_LOCATION */
X if(ok(db[x].exits)) {
X newloc = db[x].exits; /* home */
X } else {
X newloc = DEFAULT_LOCATION;
X }
X db[loc].contents = remove_first(db[loc].contents, x);
X PUSH(x, db[newloc].contents);
X db[x].location = newloc;
X }
X}
X
Xstatic void check_next(dbref x)
X{
X dbref next;
X
X if(ok(x)) {
X while(!ok(next = db[x].next)) db[x].next = db[next].next;
X }
X}
X
Xstatic void check_contents(dbref x)
X{
X dbref c;
X
X if(ok(x)) {
X while(!ok(c = db[x].contents)) db[x].contents = db[c].next;
X }
X}
X
X/* also updates home */
X/* MUST BE CALLED AFTER check_owner! */
Xstatic void check_exits(dbref x)
X{
X dbref e;
X
X if(ok(x) && !ok(e = db[x].exits)) {
X switch(Typeof(x)) {
X case TYPE_ROOM:
X while(!ok(e = db[x].exits)) db[x].exits = db[e].next;
X break;
X case TYPE_PLAYER:
X case TYPE_THING:
X if(ok(db[db[x].owner].exits)) {
X /* set it to owner's home */
X db[x].exits = db[db[x].owner].exits; /* home */
X } else {
X /* set it to DEFAULT_LOCATION */
X db[x].exits = DEFAULT_LOCATION; /* home */
X }
X break;
X }
X }
X}
X
Xstatic void do_write(void)
X{
X dbref i;
X dbref kludge;
X
X /* this is braindamaged */
X /* we have to rebuild the translation map */
X /* because part of it may have gotten nuked in check_bad_exits */
X for(i = 0, kludge = 0; i < db_top; i++) {
X if(trans[i] != NOTHING) trans[i] = kludge++;
X }
X
X for(i = 0; i < db_top; i++) {
X if(ok(i)) {
X /* translate all object pointers */
X db[i].location = translate(db[i].location);
X db[i].contents = translate(db[i].contents);
X db[i].exits = translate(db[i].exits);
X db[i].next = translate(db[i].next);
X db[i].key = translate_boolexp(db[i].key);
X db[i].owner = translate(db[i].owner);
X
X /* write it out */
X printf("#%d\n", translate(i));
X db_write_object(stdout, i);
X }
X }
X puts("***END OF DUMP***");
X}
X
Xint reach_lvl = 0;
X
Xmake_reachable (dbref x)
X{ dbref e, r;
X int i;
X
X if (Typeof(x) != TYPE_ROOM || is_excluded(x)) return;
X
X reach_lvl++;
X
X SET_REACHABLE(x);
X
X#ifdef DEBUG
X for (i=0; i<reach_lvl; i++ ) fputc (' ', stderr);
X fprintf (stderr, "Set %s(%dR) reachable.\n", db[x].name, x);
X#endif
X
X DOLIST(e, db[x].exits) {
X r = db[e].location;
X
X if (r < 0) continue;
X if (is_excluded(r)) continue;
X if (is_excluded(e)) continue;
X if (!REACHABLE(r)) make_reachable(r);
X }
X
X reach_lvl--;
X}
X
Xvoid main(int argc, char **argv)
X{
X dbref i;
X int top_in;
X int top_ex;
X char *arg0;
X
X top_in = 0;
X top_ex = 0;
X
X /* Load database */
X if(db_read(stdin) < 0) {
X fputs("Database load failed!\n", stderr);
X exit(1);
X }
X
X fputs("Done loading database...\n", stderr);
X
X
X /* now parse args */
X arg0 = *argv;
X for (argv++, argc--; argc > 0; argv++, argc--) {
X if (isdigit (**argv) || **argv == '-' && isdigit ((*argv)[1])) {
X i = atol(*argv);
X } else if (**argv == '+' && isdigit ((*argv)[1])) {
X i = atol(*argv+1);
X } else if (**argv == 'b' && isdigit ((*argv)[1])) {
X safe_below = atol(*argv+1);
X fprintf (stderr, "Including all objects %d and below\n",
X safe_below);
X } else if (**argv == 'a' && isdigit ((*argv)[1])) {
X safe_above = atol(*argv+1);
X fprintf (stderr, "Including all objects %d and above\n",
X safe_above);
X } else if (!strcmp(*argv, "all")) {
X include_all = 1;
X } else if (!strcmp(*argv, "reachable")) {
X reachable = 1;
X } else if (!strcmp(*argv, "players")) {
X keep_players = 1;
X } else if (!strcmp(*argv, "norecycle")) {
X norecycle = 1;
X } else if (**argv == '-' &&
X (i = lookup_player (*argv+1)) != 0) {
X fprintf (stderr, "Excluding player %s(%d)\n",
X db[i].name, i);
X i = -i;
X } else if (**argv != '-' &&
X (i = lookup_player (*argv)) != NOTHING) {
X fprintf (stderr, "Including player %s(%d)\n",
X db[i].name, i);
X } else {
X fprintf(stderr, "%s: bogus argument %s\n", arg0, *argv);
X continue;
X }
X
X if(i < 0) {
X excluded[top_ex++] = -i;
X } else {
X included[top_in++] = i;
X }
X }
X
X /* Terminate */
X included[top_in++] = NOTHING;
X excluded[top_ex++] = NOTHING;
X
X /* Check for reachability from DEFAULT_LOCATION */
X if (reachable)
X { make_reachable (DEFAULT_LOCATION);
X fputs ("Done marking reachability...\n", stderr);
X }
X
X /* Find recycler */
X if (norecycle && ((i = lookup_player (RECYCLER)) != NOTHING))
X { recycling_center = db[i].exits;
X if (recycling_center == DEFAULT_LOCATION) norecycle = 0;
X else
X { fprintf (stderr, "Excluding all players in %s(%d)\n",
X db[recycling_center].name, recycling_center);
X }
X }
X
X /* Build translation table */
X build_trans();
X fputs("Done building translation table...\n", stderr);
X
X /* Scan everything */
X for(i = 0; i < db_top; i++) check_bad_exits(i);
X fputs("Done checking bad exits...\n", stderr);
X
X for(i = 0; i < db_top; i++) check_owner(i);
X fputs("Done checking owners...\n", stderr);
X
X for(i = 0; i < db_top; i++) check_location(i);
X fputs("Done checking locations...\n", stderr);
X
X for(i = 0; i < db_top; i++) check_next(i);
X fputs("Done checking next pointers...\n", stderr);
X
X for(i = 0; i < db_top; i++) check_contents(i);
X fputs("Done checking contents...\n", stderr);
X
X for(i = 0; i < db_top; i++) check_exits(i);
X fputs("Done checking homes and exits...\n", stderr);
X
X do_write();
X fputs("Done.\n", stderr);
X
X exit(0);
X}
END_OF_FILE
if test 10634 -ne `wc -c <'extract.c'`; then
echo shar: \"'extract.c'\" unpacked with wrong size!
fi
# end of 'extract.c'
fi
if test -f 'minimal.db' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'minimal.db'\"
else
echo shar: Extracting \"'minimal.db'\" \(197 characters\)
sed "s/^X//" >'minimal.db' <<'END_OF_FILE'
X#0
XRoom Zero
XYou are in Room Zero. It's very dark here.
X-1
X1
X-1
X-1
X-1
X
X
X
Xis briefly visible through the mist.
X1
X0
X0
X
X#1
XOne
XYou see Number One.
X0
X-1
X0
X-1
X-1
X
X
X
X
X1
X0
X19
Xpotrzebie
X***END OF DUMP***
END_OF_FILE
if test 197 -ne `wc -c <'minimal.db'`; then
echo shar: \"'minimal.db'\" unpacked with wrong size!
fi
# end of 'minimal.db'
fi
if test -f 'oldinterface.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'oldinterface.c'\"
else
echo shar: Extracting \"'oldinterface.c'\" \(24677 characters\)
sed "s/^X//" >'oldinterface.c' <<'END_OF_FILE'
X#include "copyright.h"
X
X#include <stdio.h>
X#include <sys/types.h>
X#include <sys/file.h>
X#include <sys/time.h>
X#include <signal.h>
X#include <sys/ioctl.h>
X#include <sys/wait.h>
X#include <fcntl.h>
X#include <sys/errno.h>
X#include <ctype.h>
X#include <sys/socket.h>
X#include <netinet/in.h>
X#include <netdb.h>
X
X#include "db.h"
X#include "interface.h"
X#include "config.h"
X
Xextern int errno;
Xint shutdown_flag = 0;
X
Xstatic const char *connect_fail = "Either that player does not exist, or has a different password.\n";
X#ifndef REGISTRATION
Xstatic const char *create_fail = "Either there is already a player with that name, or that name is illegal.\n";
X#endif REGISTRATION
Xstatic const char *flushed_message = "<Output Flushed>\n";
Xstatic const char *shutdown_message = "Going down - Bye\n";
X
Xstruct text_block {
X int nchars;
X struct text_block *nxt;
X char *start;
X char *buf;
X};
X
Xstruct text_queue {
X struct text_block *head;
X struct text_block **tail;
X};
X
Xstruct descriptor_data {
X int descriptor;
X int connected;
X dbref player;
X char *output_prefix;
X char *output_suffix;
X int output_size;
X struct text_queue output;
X struct text_queue input;
X char *raw_input;
X char *raw_input_at;
X long last_time;
X long connected_at;
X int quota;
X struct sockaddr_in address;
X const char *hostname; /* 5/18/90 - Fuzzy */
X struct descriptor_data *next;
X struct descriptor_data *prev;
X} *descriptor_list = 0;
X
Xstatic int sock;
Xstatic int ndescriptors = 0;
X
Xvoid process_commands(void);
Xvoid shovechars(int port);
Xvoid shutdownsock(struct descriptor_data *d);
Xstruct descriptor_data *initializesock(int s, struct sockaddr_in *a,
X const char *hostname);
Xvoid make_nonblocking(int s);
Xvoid freeqs(struct descriptor_data *d);
Xvoid welcome_user(struct descriptor_data *d);
Xvoid do_motd(dbref);
Xvoid check_connect(struct descriptor_data *d, const char *msg);
Xvoid close_sockets();
Xconst char *addrout (long);
Xvoid dump_users(struct descriptor_data *d, char *user);
Xvoid set_signals(void);
Xstruct descriptor_data *new_connection(int sock);
Xvoid parse_connect (const char *msg, char *command, char *user, char *pass);
Xvoid set_userstring (char **userstring, const char *command);
Xint do_command (struct descriptor_data *d, char *command);
Xchar *strsave (const char *s);
Xint make_socket(int);
Xint queue_string(struct descriptor_data *, const char *);
Xint queue_write(struct descriptor_data *, const char *, int);
Xint process_output(struct descriptor_data *d);
Xint process_input(struct descriptor_data *d);
X#ifdef CONNECT_MESSAGES
Xvoid announce_connect(dbref);
Xvoid announce_disconnect(dbref);
X#endif CONNECT_MESSAGES
Xchar *time_format_1(long);
Xchar *time_format_2(long);
X
X/* Signal handlers */
Xint bailout (int, int, struct sigcontext *);
Xint sigshutdown (int, int, struct sigcontext *);
X#ifdef DETACH
Xint logsynch (int, int, struct sigcontext *);
X#endif DETACH
X
Xchar *logfile = LOG_FILE;
X
X#define MALLOC(result, type, number) do { \
X if (!((result) = (type *) malloc ((number) * sizeof (type)))) \
X panic("Out of memory"); \
X } while (0)
X
X#define FREE(x) (free((void *) x))
X
X#ifndef BOOLEXP_DEBUGGING
Xvoid main(int argc, char **argv)
X{
X if (argc < 3) {
X fprintf(stderr, "Usage: %s infile dumpfile [port [logfile]]\n", *argv);
X exit (1);
X }
X
X if (argc > 4) logfile = argv[4];
X
X set_signals ();
X if (init_game (argv[1], argv[2]) < 0) {
X writelog("INIT: Couldn't load %s!\n", argv[1]);
X exit (2);
X }
X
X /* go do it */
X shovechars (argc >= 4 ? atoi (argv[3]) : TINYPORT);
X close_sockets ();
X dump_database ();
X exit (0);
X}
X#endif /*BOOLEXP_DEBUGGING*/
X
Xvoid set_signals(void)
X{
X#ifdef DETACH
X int i;
X
X if (fork() != 0) exit(0);
X
X for (i=getdtablesize(); i >= 0; i--)
X (void) close(i);
X
X i = open("/dev/tty", O_RDWR, 0);
X if (i != -1) {
X ioctl(i, TIOCNOTTY, 0);
X close(i);
X }
X
X freopen(logfile, "a", stderr);
X setbuf(stderr, NULL);
X#endif DETACH
X
X /* we don't care about SIGPIPE, we notice it in select() and write() */
X signal (SIGPIPE, SIG_IGN);
X
X /* standard termination signals */
X signal (SIGINT, (void (*)) sigshutdown);
X signal (SIGTERM, (void (*)) sigshutdown);
X
X#ifdef DETACH
X /* SIGUSR2 synchronizes the log file */
X signal (SIGUSR2, (void (*)) logsynch);
X#else DETACH
X signal (SIGUSR2, (void (*)) bailout);
X#endif DETACH
X
X /* catch these because we might as well */
X signal (SIGQUIT, (void (*)) bailout);
X signal (SIGILL, (void (*)) bailout);
X signal (SIGTRAP, (void (*)) bailout);
X signal (SIGIOT, (void (*)) bailout);
X signal (SIGEMT, (void (*)) bailout);
X signal (SIGFPE, (void (*)) bailout);
X signal (SIGBUS, (void (*)) bailout);
X signal (SIGSEGV, (void (*)) bailout);
X signal (SIGSYS, (void (*)) bailout);
X signal (SIGXCPU, (void (*)) bailout);
X signal (SIGXFSZ, (void (*)) bailout);
X signal (SIGVTALRM, (void (*)) bailout);
X signal (SIGUSR1, (void (*)) bailout);
X}
X
Xint notify(dbref player, const char *msg)
X{
X struct descriptor_data *d;
X int retval = 0;
X#ifdef COMPRESS
X extern const char *uncompress(const char *);
X
X msg = uncompress(msg);
X#endif /* COMPRESS */
X
X for(d = descriptor_list; d; d = d->next) {
X if (d->connected && d->player == player) {
X queue_string(d, msg);
X queue_write(d, "\n", 1);
X retval = 1;
X }
X }
X return(retval);
X}
X
Xstruct timeval timeval_sub(struct timeval now, struct timeval then)
X{
X now.tv_sec -= then.tv_sec;
X now.tv_usec -= then.tv_usec;
X if (now.tv_usec < 0) {
X now.tv_usec += 1000000;
X now.tv_sec--;
X }
X return now;
X}
X
Xint msec_diff(struct timeval now, struct timeval then)
X{
X return ((now.tv_sec - then.tv_sec) * 1000
X + (now.tv_usec - then.tv_usec) / 1000);
X}
X
Xstruct timeval msec_add(struct timeval t, int x)
X{
X t.tv_sec += x / 1000;
X t.tv_usec += (x % 1000) * 1000;
X if (t.tv_usec >= 1000000) {
X t.tv_sec += t.tv_usec / 1000000;
X t.tv_usec = t.tv_usec % 1000000;
X }
X return t;
X}
X
Xstruct timeval update_quotas(struct timeval last, struct timeval current)
X{
X int nslices;
X struct descriptor_data *d;
X
X nslices = msec_diff (current, last) / COMMAND_TIME_MSEC;
X
X if (nslices > 0) {
X for (d = descriptor_list; d; d = d -> next) {
X d -> quota += COMMANDS_PER_TIME * nslices;
X if (d -> quota > COMMAND_BURST_SIZE)
X d -> quota = COMMAND_BURST_SIZE;
X }
X }
X return msec_add (last, nslices * COMMAND_TIME_MSEC);
X}
X
Xvoid shovechars(int port)
X{
X fd_set input_set, output_set;
X long now;
X struct timeval last_slice, current_time;
X struct timeval next_slice;
X struct timeval timeout, slice_timeout;
X int maxd;
X struct descriptor_data *d, *dnext;
X struct descriptor_data *newd;
X int avail_descriptors;
X
X sock = make_socket (port);
X maxd = sock+1;
X gettimeofday(&last_slice, (struct timezone *) 0);
X
X avail_descriptors = getdtablesize() - 4;
X
X while (shutdown_flag == 0) {
X gettimeofday(¤t_time, (struct timezone *) 0);
X last_slice = update_quotas (last_slice, current_time);
X
X process_commands();
X
X if (shutdown_flag)
X break;
X timeout.tv_sec = 1000;
X timeout.tv_usec = 0;
X next_slice = msec_add (last_slice, COMMAND_TIME_MSEC);
X slice_timeout = timeval_sub (next_slice, current_time);
X
X FD_ZERO (&input_set);
X FD_ZERO (&output_set);
X if (ndescriptors < avail_descriptors)
X FD_SET (sock, &input_set);
X for (d = descriptor_list; d; d=d->next) {
X if (d->input.head)
X timeout = slice_timeout;
X else
X FD_SET (d->descriptor, &input_set);
X if (d->output.head)
X FD_SET (d->descriptor, &output_set);
X }
X
X if (select (maxd, &input_set, &output_set,
X (fd_set *) 0, &timeout) < 0) {
X if (errno != EINTR) {
X perror ("select");
X return;
X }
X } else {
X (void) time (&now);
X if (FD_ISSET (sock, &input_set)) {
X if (!(newd = new_connection (sock))) {
X if (errno
X && errno != EINTR
X && errno != EMFILE
X && errno != ENFILE) {
X perror ("new_connection");
X return;
X }
X } else {
X if (newd->descriptor >= maxd)
X maxd = newd->descriptor + 1;
X }
X }
X for (d = descriptor_list; d; d = dnext) {
X dnext = d->next;
X if (FD_ISSET (d->descriptor, &input_set)) {
X d->last_time = now;
X if (!process_input (d)) {
X shutdownsock (d);
X continue;
X }
X }
X if (FD_ISSET (d->descriptor, &output_set)) {
X if (!process_output (d)) {
X shutdownsock (d);
X }
X }
X }
X }
X }
X}
X
Xstatic char hostname[128];
X
Xstruct descriptor_data *new_connection(int sock)
X{
X int newsock;
X struct sockaddr_in addr;
X int addr_len;
X
X addr_len = sizeof (addr);
X newsock = accept (sock, (struct sockaddr *) & addr, &addr_len);
X if (newsock < 0) {
X return 0;
X#ifdef LOCKOUT
X } else if(forbidden_site(ntohl(addr.sin_addr.s_addr))) {
X writelog("REFUSED CONNECTION from %s(%d) on descriptor %d\n",
X addrout(addr.sin_addr.s_addr),
X ntohs(addr.sin_port), newsock);
X shutdown(newsock, 2);
X close(newsock);
X errno = 0;
X return 0;
X#endif /* LOCKOUT */
X } else {
X strcpy (hostname, addrout (addr.sin_addr.s_addr));
X#ifdef NOISY_LOG
X writelog("ACCEPT from %s(%d) on descriptor %d\n",
X hostname,
X ntohs (addr.sin_port), newsock);
X#endif NOISY_LOG
X return initializesock (newsock, &addr, hostname);
X }
X}
X
Xconst char *addrout(long a)
X{
X /* New version: returns host names, not octets. Uses gethostbyaddr. */
X extern char *inet_ntoa(long);
X
X#ifdef HOST_NAME
X struct hostent *he;
X
X he = gethostbyaddr(&a,sizeof(a),AF_INET);
X if (he) return he->h_name;
X else return inet_ntoa(a);
X#else
X return inet_ntoa(a);
X#endif HOST_NAME
X}
X
X
Xvoid clearstrings(struct descriptor_data *d)
X{
X if (d->output_prefix) {
X FREE(d->output_prefix);
X d->output_prefix = 0;
X }
X if (d->output_suffix) {
X FREE(d->output_suffix);
X d->output_suffix = 0;
X }
X}
X
Xvoid shutdownsock(struct descriptor_data *d)
X{
X if (d->connected) {
X writelog("DISCONNECT player %s(%d) %d %s\n",
X db[d->player].name, d->player, d->descriptor, d->hostname);
X#ifdef CONNECT_MESSAGES
X announce_disconnect(d->player);
X#endif CONNECT_MESSAGES
X } else {
X writelog("DISCONNECT descriptor %d never connected\n",
X d->descriptor);
X }
X clearstrings (d);
X shutdown (d->descriptor, 2);
X close (d->descriptor);
X freeqs (d);
X if (d->prev) d->prev->next = d->next; else descriptor_list = d->next;
X if (d->next) d->next->prev = d->prev;
X FREE (d);
X ndescriptors--;
X}
X
Xstruct descriptor_data *initializesock(int s, struct sockaddr_in *a,
X const char *hostname)
X{
X struct descriptor_data *d;
X
X ndescriptors++;
X MALLOC(d, struct descriptor_data, 1);
X d->descriptor = s;
X d->connected = 0;
X make_nonblocking (s);
X d->output_prefix = 0;
X d->output_suffix = 0;
X d->output_size = 0;
X d->output.head = 0;
X d->output.tail = &d->output.head;
X d->input.head = 0;
X d->input.tail = &d->input.head;
X d->raw_input = 0;
X d->raw_input_at = 0;
X d->quota = COMMAND_BURST_SIZE;
X d->last_time = 0;
X d->address = *a; /* added 5/3/90 SCG */
X d->hostname = alloc_string(hostname);
X if (descriptor_list)
X descriptor_list->prev = d;
X d->next = descriptor_list;
X d->prev = NULL;
X descriptor_list = d;
X
X welcome_user (d);
X return d;
X}
X
Xint make_socket(int port)
X{
X int s;
X struct sockaddr_in server;
X int opt;
X
X s = socket (AF_INET, SOCK_STREAM, 0);
X if (s < 0) {
X perror ("creating stream socket");
X exit (3);
X }
X opt = 1;
X if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR,
X (char *) &opt, sizeof (opt)) < 0) {
X perror ("setsockopt");
X exit (1);
X }
X server.sin_family = AF_INET;
X server.sin_addr.s_addr = INADDR_ANY;
X server.sin_port = htons (port);
X if (bind (s, (struct sockaddr *) & server, sizeof (server))) {
X perror ("binding stream socket");
X close (s);
X exit (4);
X }
X listen (s, 5);
X return s;
X}
X
Xstruct text_block *make_text_block(const char *s, int n)
X{
X struct text_block *p;
X
X MALLOC(p, struct text_block, 1);
X MALLOC(p->buf, char, n);
X bcopy (s, p->buf, n);
X p->nchars = n;
X p->start = p->buf;
X p->nxt = 0;
X return p;
X}
X
Xvoid free_text_block (struct text_block *t)
X{
X FREE (t->buf);
X FREE ((char *) t);
X}
X
Xvoid add_to_queue(struct text_queue *q, const char *b, int n)
X{
X struct text_block *p;
X
X if (n == 0) return;
X
X p = make_text_block (b, n);
X p->nxt = 0;
X *q->tail = p;
X q->tail = &p->nxt;
X}
X
Xint flush_queue(struct text_queue *q, int n)
X{
X struct text_block *p;
X int really_flushed = 0;
X
X n += strlen(flushed_message);
X
X while (n > 0 && (p = q->head)) {
X n -= p->nchars;
X really_flushed += p->nchars;
X q->head = p->nxt;
X free_text_block (p);
X }
X p = make_text_block(flushed_message, strlen(flushed_message));
X p->nxt = q->head;
X q->head = p;
X if (!p->nxt)
X q->tail = &p->nxt;
X really_flushed -= p->nchars;
X return really_flushed;
X}
X
Xint queue_write(struct descriptor_data *d, const char *b, int n)
X{
X int space;
X
X space = MAX_OUTPUT - d->output_size - n;
X if (space < 0)
X d->output_size -= flush_queue(&d->output, -space);
X add_to_queue (&d->output, b, n);
X d->output_size += n;
X return n;
X}
X
Xint queue_string(struct descriptor_data *d, const char *s)
X{
X return queue_write (d, s, strlen (s));
X}
X
Xint process_output(struct descriptor_data *d)
X{
X struct text_block **qp, *cur;
X int cnt;
X
X for (qp = &d->output.head; cur = *qp;) {
X cnt = write (d->descriptor, cur -> start, cur -> nchars);
X if (cnt < 0) {
X if (errno == EWOULDBLOCK)
X return 1;
X return 0;
X }
X d->output_size -= cnt;
X if (cnt == cur -> nchars) {
X if (!cur -> nxt)
X d->output.tail = qp;
X *qp = cur -> nxt;
X free_text_block (cur);
X continue; /* do not adv ptr */
X }
X cur -> nchars -= cnt;
X cur -> start += cnt;
X break;
X }
X return 1;
X}
X
Xvoid make_nonblocking(int s)
X{
X if (fcntl (s, F_SETFL, FNDELAY) == -1) {
X perror ("make_nonblocking: fcntl");
X panic ("FNDELAY fcntl failed");
X }
X}
X
Xvoid freeqs(struct descriptor_data *d)
X{
X struct text_block *cur, *next;
X
X cur = d->output.head;
X while (cur) {
X next = cur -> nxt;
X free_text_block (cur);
X cur = next;
X }
X d->output.head = 0;
X d->output.tail = &d->output.head;
X
X cur = d->input.head;
X while (cur) {
X next = cur -> nxt;
X free_text_block (cur);
X cur = next;
X }
X d->input.head = 0;
X d->input.tail = &d->input.head;
X
X if (d->raw_input)
X FREE (d->raw_input);
X d->raw_input = 0;
X d->raw_input_at = 0;
X}
X
Xvoid welcome_user(struct descriptor_data *d)
X{
X queue_string (d, WELCOME_MESSAGE);
X# ifdef CONNECT_FILE
X do_connect_msg(d, CONNECT_FILE);
X# endif
X}
X
Xvoid goodbye_user(struct descriptor_data *d)
X{
X write (d->descriptor, LEAVE_MESSAGE, strlen (LEAVE_MESSAGE));
X}
X
Xchar *strsave (const char *s)
X{
X char *p;
X
X MALLOC (p, char, strlen(s) + 1);
X
X if (p)
X strcpy (p, s);
X return p;
X}
X
Xvoid save_command (struct descriptor_data *d, const char *command)
X{
X add_to_queue (&d->input, command, strlen(command)+1);
X}
X
Xint process_input (struct descriptor_data *d)
X{
X char buf[1024];
X int got;
X char *p, *pend, *q, *qend;
X
X got = read (d->descriptor, buf, sizeof buf);
X if (got <= 0)
X return 0;
X if (!d->raw_input) {
X MALLOC(d->raw_input,char,MAX_COMMAND_LEN);
X d->raw_input_at = d->raw_input;
X }
X p = d->raw_input_at;
X pend = d->raw_input + MAX_COMMAND_LEN - 1;
X for (q=buf, qend = buf + got; q < qend; q++) {
X if (*q == '\n') {
X *p = '\0';
X if (p > d->raw_input)
X save_command (d, d->raw_input);
X p = d->raw_input;
X } else if (p < pend && isascii (*q) && isprint (*q)) {
X *p++ = *q;
X }
X }
X if(p > d->raw_input) {
X d->raw_input_at = p;
X } else {
X FREE(d->raw_input);
X d->raw_input = 0;
X d->raw_input_at = 0;
X }
X return 1;
X}
X
Xvoid set_userstring (char **userstring, const char *command)
X{
X if (*userstring) {
X FREE(*userstring);
X *userstring = 0;
X }
X while (*command && isascii (*command) && isspace (*command))
X command++;
X if (*command)
X *userstring = strsave (command);
X}
X
Xvoid process_commands(void)
X{
X int nprocessed;
X struct descriptor_data *d, *dnext;
X struct text_block *t;
X
X do {
X nprocessed = 0;
X for (d = descriptor_list; d; d = dnext) {
X dnext = d->next;
X if (d -> quota > 0 && (t = d -> input.head)) {
X d -> quota--;
X nprocessed++;
X if (!do_command (d, t -> start)) {
X shutdownsock (d);
X } else {
X d -> input.head = t -> nxt;
X if (!d -> input.head)
X d -> input.tail = &d -> input.head;
X free_text_block (t);
X }
X }
X }
X } while (nprocessed > 0);
X}
X
Xint do_command (struct descriptor_data *d, char *command)
X{
X if (!strcmp (command, QUIT_COMMAND)) {
X goodbye_user (d);
X return 0;
X } else if (!strncmp (command, WHO_COMMAND, strlen(WHO_COMMAND))) {
X if (d->output_prefix) {
X queue_string (d, d->output_prefix);
X queue_write (d, "\n", 1);
X }
X dump_users (d, command + strlen(WHO_COMMAND));
X if (d->output_suffix) {
X queue_string (d, d->output_suffix);
X queue_write (d, "\n", 1);
X }
X } else if (d->connected &&
X !strncmp (command, PREFIX_COMMAND, strlen (PREFIX_COMMAND))) {
X#ifdef ROBOT_MODE
X if (!Robot(d->player)) {
X#ifndef TINKER
X notify(d->player,
X "Only robots can use OUTPUTPREFIX; contact a Wizard.");
X#else TINKER
X notify(d->player,
X "Only robots can use OUTPUTPREFIX; contact a Tinker.");
X#endif TINKER
X return 1;
X }
X if (!d->connected) return 1;
X#endif ROBOT_MODE
X set_userstring (&d->output_prefix, command+strlen(PREFIX_COMMAND));
X } else if (d->connected &&
X !strncmp (command, SUFFIX_COMMAND, strlen (SUFFIX_COMMAND))) {
X#ifdef ROBOT_MODE
X if (!Robot(d->player)) {
X#ifndef TINKER
X notify(d->player,
X "Only robots can use OUTPUTSUFFIX; contact a Wizard.");
X#else TINKER
X notify(d->player,
X "Only robots can use OUTPUTSUFFIX; contact a Tinker.");
X#endif TINKER
X return 1;
X }
X#endif ROBOT_MODE
X set_userstring (&d->output_suffix, command+strlen(SUFFIX_COMMAND));
X } else {
X if (d->connected) {
X if (d->output_prefix) {
X queue_string (d, d->output_prefix);
X queue_write (d, "\n", 1);
X }
X process_command (d->player, command);
X if (d->output_suffix) {
X queue_string (d, d->output_suffix);
X queue_write (d, "\n", 1);
X }
X } else {
X check_connect (d, command);
X }
X }
X return 1;
X}
X
Xvoid check_connect (struct descriptor_data *d, const char *msg)
X{
X char command[MAX_COMMAND_LEN];
X char user[MAX_COMMAND_LEN];
X char password[MAX_COMMAND_LEN];
X dbref player;
X
X parse_connect (msg, command, user, password);
X
X if (!strncmp (command, "co", 2)) {
X player = connect_player (user, password);
X if (player == NOTHING) {
X queue_string (d, connect_fail);
X writelog("FAILED CONNECT %s on %d %s\n",
X user, d->descriptor, d->hostname);
X } else {
X writelog("CONNECTED %s(%d) on %d %s\n",
X db[player].name, player, d->descriptor, d->hostname);
X d->connected = 1;
X d->connected_at = time(NULL);
X d->player = player;
X
X do_motd (player);
X do_look_around (player);
X#ifdef CONNECT_MESSAGES
X announce_connect(player);
X#endif CONNECT_MESSAGES
X }
X } else if (!strncmp (command, "cr", 2)) {
X#ifndef REGISTRATION
X player = create_player (user, password);
X if (player == NOTHING) {
X queue_string (d, create_fail);
X writelog("FAILED CREATE %s on %d %s\n",
X user, d->descriptor, d->hostname);
X } else {
X writelog("CREATED %s(%d) on descriptor %d %s\n",
X db[player].name, player, d->descriptor, d->hostname);
X d->connected = 1;
X d->connected_at = time(NULL);
X d->player = player;
X
X do_motd (player);
X do_look_around (player);
X#ifdef CONNECT_MESSAGES
X announce_connect(player);
X#endif CONNECT_MESSAGES
X }
X#else
X queue_string (d, REGISTER_MESSAGE);
X#endif REGISTRATION
X } else {
X welcome_user (d);
X }
X}
X
Xvoid parse_connect (const char *msg, char *command, char *user, char *pass)
X{
X char *p;
X
X while (*msg && isascii(*msg) && isspace (*msg))
X msg++;
X p = command;
X while (*msg && isascii(*msg) && !isspace (*msg))
X *p++ = *msg++;
X *p = '\0';
X while (*msg && isascii(*msg) && isspace (*msg))
X msg++;
X p = user;
X while (*msg && isascii(*msg) && !isspace (*msg))
X *p++ = *msg++;
X *p = '\0';
X while (*msg && isascii(*msg) && isspace (*msg))
X msg++;
X p = pass;
X while (*msg && isascii(*msg) && !isspace (*msg))
X *p++ = *msg++;
X *p = '\0';
X}
X
Xvoid close_sockets(void)
X{
X struct descriptor_data *d, *dnext;
X
X for (d = descriptor_list; d; d = dnext) {
X dnext = d->next;
X write (d->descriptor, shutdown_message, strlen (shutdown_message));
X if (shutdown (d->descriptor, 2) < 0)
X perror ("shutdown");
X close (d->descriptor);
X }
X close (sock);
X}
X
Xvoid emergency_shutdown(void)
X{
X close_sockets();
X}
X
Xvoid boot_off(dbref player)
X{
X struct descriptor_data *d, *dnext;
X for (d = descriptor_list; d; d = dnext) {
X dnext = d->next;
X if (d->connected && d->player == player) {
X process_output(d);
X shutdownsock(d);
X }
X }
X}
X
Xint bailout (int sig, int code, struct sigcontext *scp)
X{
X long *ptr;
X int i;
X
X writelog("BAILOUT: caught signal %d code %d\n", sig, code);
X ptr = (long *) scp;
X for (i=0; i<sizeof(struct sigcontext); i++)
X writelog(" %08lx\n", *ptr);
X panic("PANIC on spurious signal");
X _exit(7);
X return 0;
X}
X
Xint sigshutdown (int sig, int code, struct sigcontext *scp)
X{
X writelog("SHUTDOWN: on signal %d code %d\n", sig, code);
X shutdown_flag = 1;
X return 0;
X}
X
X#ifdef DETACH
Xint logsynch (int sig, int code, struct sigcontext *scp)
X{
X freopen(logfile, "a", stderr);
X setbuf(stderr, NULL);
X writelog("log file reopened\n");
X return 0;
X}
X#endif DETACH
X
Xvoid dump_users(struct descriptor_data *e, char *user)
X{
X struct descriptor_data *d;
X long now;
X char buf[1024];
X int wizard;
X int reversed, tabular;
X
X while (*user && isspace(*user)) user++;
X if (!*user) user = NULL;
X
X reversed = e->connected && Flag(e->player,REVERSED_WHO);
X tabular = e->connected && Flag(e->player,TABULAR_WHO);
X
X (void) time (&now);
X queue_string(e,
X tabular ? "Player Name On For Idle\n" : "Current Players:\n");
X#ifdef GOD_MODE
X wizard = e->connected && God(e->player);
X#else GOD_MODE
X wizard = e->connected && Wizard(e->player);
X#endif GOD_MODE
X
X d = descriptor_list;
X
X if (reversed)
X while (d && d->next) d = d->next;
X
X while (d) {
X if (d->connected &&
X (!user || string_prefix(db[d->player].name, user))) {
X if (tabular) {
X sprintf(buf,"%-16s %10s %4s",
X db[d->player].name,
X time_format_1(now - d->connected_at),
X time_format_2(now - d->last_time));
X if (wizard)
X sprintf(buf+strlen(buf),
X " %s", d->hostname);
X } else {
X sprintf(buf,
X "%s idle %d seconds",
X db[d->player].name,
X now - d->last_time);
X if (wizard)
X sprintf(buf+strlen(buf),
X " from host %s", d->hostname);
X }
X strcat(buf,"\n");
X queue_string (e, buf);
X }
X if (reversed) d = d->prev; else d = d->next;
X }
X}
X
Xchar *time_format_1(long dt)
X{
X register struct tm *delta;
X static char buf[64];
X
X delta = gmtime(&dt);
X if (delta->tm_yday > 0)
X sprintf(buf, "%dd %02d:%02d",
X delta->tm_yday, delta->tm_hour, delta->tm_min);
X else
X sprintf(buf, "%02d:%02d",
X delta->tm_hour, delta->tm_min);
X return buf;
X}
X
Xchar *time_format_2(long dt)
X{
X register struct tm *delta;
X static char buf[64];
X
X delta = gmtime(&dt);
X if (delta->tm_yday > 0)
X sprintf(buf, "%dd", delta->tm_yday);
X else if (delta->tm_hour > 0)
X sprintf(buf, "%dh", delta->tm_hour);
X else if (delta->tm_min > 0)
X sprintf(buf, "%dm", delta->tm_min);
X else
X sprintf(buf, "%ds", delta->tm_sec);
X return buf;
X}
X
X#ifdef CONNECT_MESSAGES
Xvoid announce_connect(dbref player)
X{
X dbref loc;
X char buf[BUFFER_LEN];
X
X if ((loc = getloc(player)) == NOTHING) return;
X if (Dark(player) || Dark(loc)) return;
X
X sprintf(buf, "%s has connected.", db[player].name);
X
X notify_except(db[loc].contents, player, buf);
X}
X
Xvoid announce_disconnect(dbref player)
X{
X dbref loc;
X char buf[BUFFER_LEN];
X
X if ((loc = getloc(player)) == NOTHING) return;
X if (Dark(player) || Dark(loc)) return;
X
X sprintf(buf, "%s has disconnected.", db[player].name);
X
X notify_except(db[loc].contents, player, buf);
X}
X#endif CONNECT_MESSAGES
Xint do_connect_msg(struct descriptor_data * d, const char *filename)
X{
X FILE *f;
X char buf[BUFFER_LEN];
X char *p;
X
X if ((f = fopen(filename, "r")) == NULL)
X {
X return (0);
X } else
X {
X while (fgets(buf, sizeof buf, f))
X {
X queue_string(d, (char *)buf);
X
X }
X fclose(f);
X return (1);
X }
X}
END_OF_FILE
if test 24677 -ne `wc -c <'oldinterface.c'`; then
echo shar: \"'oldinterface.c'\" unpacked with wrong size!
fi
# end of 'oldinterface.c'
fi
echo shar: End of archive 8 \(of 10\).
cp /dev/null ark8isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 9 10 ; do
if test ! -f ark${I}isdone ; then
MISSING="${MISSING} ${I}"
fi
done
if test "${MISSING}" = "" ; then
echo You have unpacked all 10 archives.
echo ">>> now type 'sh joinspl.sh'"
rm -f ark[1-9]isdone ark[1-9][0-9]isdone
else
echo You still need to unpack the following archives:
echo " " ${MISSING}
fi
## End of shell archive.
exit 0