citadel/citadel.c

   1 /*
   2  * $Id$
   3  *
   4  * Main source module for the client program.
   5  */
   6
   7 #include "sysdep.h"
   8 #include <stdlib.h>
   9 #include <unistd.h>
  10 #include <fcntl.h>
  11 #include <stdio.h>
  12 #include <ctype.h>
  13 #include <string.h>
  14
  15 #if TIME_WITH_SYS_TIME
  16 # include <sys/time.h>
  17 # include <time.h>
  18 #else
  19 # if HAVE_SYS_TIME_H
  20 #  include <sys/time.h>
  21 # else
  22 #  include <time.h>
  23 # endif
  24 #endif
  25
  26 #include <limits.h>
  27 #include <sys/types.h>
  28 #include <sys/wait.h>
  29 #include <sys/stat.h>
  30 #include <sys/ioctl.h>
  31 #include <signal.h>
  32 #include <pwd.h>
  33 #include <stdarg.h>
  34 #include <errno.h>
  35
  36 #include "citadel.h"
  37 #include "citadel_ipc.h"
  38 #include "axdefs.h"
  39 #include "routines.h"
  40 #include "routines2.h"
  41 #include "rooms.h"
  42 #include "messages.h"
  43 #include "commands.h"
  44 #include "client_chat.h"
  45 #include "client_passwords.h"
  46 #include "citadel_decls.h"
  47 #include "tools.h"
  48 #include "acconfig.h"
  49 #ifndef HAVE_SNPRINTF
  50 #include "snprintf.h"
  51 #endif
  52 #include "screen.h"
  53 #include "citadel_dirs.h"
  54
  55 #include "md5.h"
  56
  57 #define IFEXPERT if (userflags&US_EXPERT)
  58 #define IFNEXPERT if ((userflags&US_EXPERT)==0)
  59 #define IFAIDE if (axlevel>=6)
  60 #define IFNAIDE if (axlevel<6)
  61
  62 int rordercmp(struct ctdlroomlisting *r1, struct ctdlroomlisting *r2);
  63
  64 struct march *march = NULL;
  65
  66 /* globals associated with the client program */
  67 char temp[PATH_MAX];            /* Name of general-purpose temp file */
  68 char temp2[PATH_MAX];           /* Name of general-purpose temp file */
  69 char tempdir[PATH_MAX];         /* Name of general-purpose temp directory */
  70 char editor_paths[MAX_EDITORS][SIZ];    /* paths to external editors */
  71 char printcmd[SIZ];             /* print command */
  72 int editor_pid = (-1);
  73 char fullname[USERNAME_SIZE];
  74 int screenwidth;
  75 int screenheight;
  76 unsigned room_flags;
  77 char room_name[ROOMNAMELEN];
  78 char *uglist[UGLISTLEN]; /* size of the ungoto list */
  79 long uglistlsn[UGLISTLEN]; /* current read position for all the ungoto's. Not going to make any friends with this one. */
  80 int uglistsize = 0;
  81 char is_mail = 0;               /* nonzero when we're in a mail room */
  82 char axlevel = 0;               /* access level */
  83 char is_room_aide = 0;          /* boolean flag, 1 if room aide */
  84 int timescalled;
  85 int posted;
  86 unsigned userflags;
  87 long usernum = 0L;              /* user number */
  88 time_t lastcall = 0L;           /* Date/time of previous login */
  89 char newnow;
  90 long highest_msg_read;          /* used for <A>bandon room cmd */
  91 long maxmsgnum;                 /* used for <G>oto */
  92 char sigcaught = 0;
  93 char have_xterm = 0;            /* are we running on an xterm? */
  94 char rc_username[USERNAME_SIZE];
  95 char rc_password[32];
  96 char hostbuf[SIZ];
  97 char portbuf[SIZ];
  98 char rc_floor_mode;
  99 char floor_mode;
 100 char curr_floor = 0;            /* number of current floor */
 101 char floorlist[128][SIZ];       /* names of floors */
 102 int termn8 = 0;                 /* Set to nonzero to cause a logoff */
 103 int secure;                     /* Set to nonzero when wire is encrypted */
 104 int can_do_msg4 = 0;            /* Set to nonzero if the server can handle MSG4 commands */
 105
 106 extern char instant_msgs;       /* instant messages waiting! */
 107 extern int rc_ansi_color;       /* ansi color value from citadel.rc */
 108 extern int next_lazy_cmd;
 109
 110 CtdlIPC *ipc_for_signal_handlers;       /* KLUDGE cover your eyes */
 111
 112 /*
 113  * here is our 'clean up gracefully and exit' routine
 114  */
 115 void ctdl_logoff(char *file, int line, CtdlIPC *ipc, int code)
 116 {
 117         int lp;
 118
 119         if (editor_pid > 0) {   /* kill the editor if it's running */
 120                 kill(editor_pid, SIGHUP);
 121         }
 122
 123         /* Free the ungoto list */
 124         for (lp = 0; lp < uglistsize; lp++) {
 125                 free(uglist[lp]);
 126         }
 127
 128 /* Shut down the server connection ... but not if the logoff code is 3,
 129  * because that means we're exiting because we already lost the server.
 130  */
 131         if (code != 3) {
 132                 CtdlIPCQuit(ipc);
 133         }
 134
 135 /*
 136  * now clean up various things
 137  */
 138         screen_delete();
 139
 140         unlink(temp);
 141         unlink(temp2);
 142         nukedir(tempdir);
 143
 144         /* Violently kill off any child processes if Citadel is
 145          * the login shell.
 146          */
 147         if (getppid() == 1) {
 148                 kill(0 - getpgrp(), SIGTERM);
 149                 sleep(1);
 150                 kill(0 - getpgrp(), SIGKILL);
 151         }
 152         color(ORIGINAL_PAIR);   /* Restore the old color settings */
 153         stty_ctdl(SB_RESTORE);  /* return the old terminal settings */
 154         /*
 155          * uncomment the following if you need to know why Citadel exited
 156         printf("*** Exit code %d at %s:%d\n", code, file, line);
 157         sleep(2);
 158          */
 159         exit(code);             /* exit with the proper exit code */
 160 }
 161
 162
 163
 164 /*
 165  * signal catching function for hangups...
 166  */
 167 void dropcarr(int signum)
 168 {
 169         logoff(NULL, 3);        /* No IPC when server's already gone! */
 170 }
 171
 172
 173
 174 /*
 175  * catch SIGCONT to reset terminal modes when were are put back into the
 176  * foreground.
 177  */
 178 void catch_sigcont(int signum)
 179 {
 180         stty_ctdl(SB_LAST);
 181         signal(SIGCONT, catch_sigcont);
 182 }
 183
 184
 185 /* general purpose routines */
 186
 187 /* display a file */
 188 void formout(CtdlIPC *ipc, char *name)
 189 {
 190         int r;                  /* IPC return code */
 191         char buf[SIZ];
 192         char *text = NULL;
 193
 194         r = CtdlIPCSystemMessage(ipc, name, &text, buf);
 195         if (r / 100 != 1) {
 196                 scr_printf("%s\n", buf);
 197                 return;
 198         }
 199         if (text) {
 200                 fmout(screenwidth, NULL, text, NULL,
 201                       ((userflags & US_PAGINATOR) ? 1 : 0),
 202                       screenheight, 1, 1);
 203                 free(text);
 204         }
 205 }
 206
 207
 208 void userlist(CtdlIPC *ipc, char *patn)
 209 {
 210         char buf[SIZ];
 211         char fl[SIZ];
 212         struct tm tmbuf;
 213         time_t lc;
 214         int r;                          /* IPC response code */
 215         char *listing = NULL;
 216
 217         r = CtdlIPCUserListing(ipc, patn, &listing, buf);
 218         if (r / 100 != 1) {
 219                 pprintf("%s\n", buf);
 220                 return;
 221         }
 222
 223         pprintf("       User Name           Num  L  LastCall  Calls Posts\n");
 224         pprintf("------------------------- ----- - ---------- ----- -----\n");
 225         if (listing != NULL) while (strlen(listing) > 0) {
 226                 extract_token(buf, listing, 0, '\n', sizeof buf);
 227                 remove_token(listing, 0, '\n');
 228
 229                 if (sigcaught == 0) {
 230                     extract_token(fl, buf, 0, '|', sizeof fl);
 231                     if (pattern(fl, patn) >= 0) {
 232                         pprintf("%-25s ", fl);
 233                         pprintf("%5ld %d ", extract_long(buf, 2),
 234                                extract_int(buf, 1));
 235                         lc = extract_long(buf, 3);
 236                         localtime_r(&lc, &tmbuf);
 237                         pprintf("%02d/%02d/%04d ",
 238                                (tmbuf.tm_mon + 1),
 239                                tmbuf.tm_mday,
 240                                (tmbuf.tm_year + 1900));
 241                         pprintf("%5ld %5ld\n", extract_long(buf, 4), extract_long(buf, 5));
 242                     }
 243
 244                 }
 245         }
 246         free(listing);
 247         pprintf("\n");
 248 }
 249
 250
 251 /*
 252  * grab assorted info about the user...
 253  */
 254 void load_user_info(char *params)
 255 {
 256         extract_token(fullname, params, 0, '|', sizeof fullname);
 257         axlevel = extract_int(params, 1);
 258         timescalled = extract_int(params, 2);
 259         posted = extract_int(params, 3);
 260         userflags = extract_int(params, 4);
 261         usernum = extract_long(params, 5);
 262         lastcall = extract_long(params, 6);
 263 }
 264
 265
 266 /*
 267  * Remove a room from the march list.  'floornum' is ignored unless
 268  * 'roomname' is set to _FLOOR_, in which case all rooms on the requested
 269  * floor will be removed from the march list.
 270  */
 271 void remove_march(char *roomname, int floornum)
 272 {
 273         struct march *mptr, *mptr2;
 274
 275         if (march == NULL)
 276                 return;
 277
 278         if ((!strcasecmp(march->march_name, roomname))
 279             || ((!strcasecmp(roomname, "_FLOOR_")) && (march->march_floor == floornum))) {
 280                 mptr = march->next;
 281                 free(march);
 282                 march = mptr;
 283                 return;
 284         }
 285         mptr2 = march;
 286         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 287
 288                 if ((!strcasecmp(mptr->march_name, roomname))
 289                     || ((!strcasecmp(roomname, "_FLOOR_"))
 290                         && (mptr->march_floor == floornum))) {
 291
 292                         mptr2->next = mptr->next;
 293                         free(mptr);
 294                         mptr = mptr2;
 295                 } else {
 296                         mptr2 = mptr;
 297                 }
 298         }
 299 }
 300
 301
 302 /*
 303  * Locate the room on the march list which we most want to go to.  Each room
 304  * is measured given a "weight" of preference based on various factors.
 305  */
 306 char *pop_march(int desired_floor, struct march *_march)
 307 {
 308         static char TheRoom[ROOMNAMELEN];
 309         int TheFloor = 0;
 310         int TheOrder = 32767;
 311         int TheWeight = 0;
 312         int weight;
 313         struct march *mptr = NULL;
 314
 315         strcpy(TheRoom, "_BASEROOM_");
 316         if (_march == NULL)
 317                 return (TheRoom);
 318
 319         for (mptr = _march; mptr != NULL; mptr = mptr->next) {
 320                 weight = 0;
 321                 if ((strcasecmp(mptr->march_name, "_BASEROOM_")))
 322                         weight = weight + 10000;
 323                 if (mptr->march_floor == desired_floor)
 324                         weight = weight + 5000;
 325
 326                 weight = weight + ((128 - (mptr->march_floor)) * 128);
 327                 weight = weight + (128 - (mptr->march_order));
 328
 329                 if (weight > TheWeight) {
 330                         TheWeight = weight;
 331                         strcpy(TheRoom, mptr->march_name);
 332                         TheFloor = mptr->march_floor;
 333                         TheOrder = mptr->march_order;
 334                 }
 335         }
 336         return (TheRoom);
 337 }
 338
 339
 340 /*
 341  * jump directly to a room
 342  */
 343 void dotgoto(CtdlIPC *ipc, char *towhere, int display_name, int fromungoto)
 344 {
 345         char aaa[SIZ], bbb[SIZ];
 346         static long ls = 0L;
 347         int newmailcount = 0;
 348         int partial_match, best_match;
 349         char from_floor;
 350         int ugpos = uglistsize;
 351         int r;                          /* IPC result code */
 352         struct ctdlipcroom *room = NULL;
 353
 354         /* store ungoto information */
 355         if (fromungoto == 0) {
 356                 /* sloppy slide them all down, hey it's the client, who cares. :-) */
 357                 if (uglistsize >= (UGLISTLEN-1)) {
 358                         int lp;
 359                         free (uglist[0]);
 360                         for (lp = 0; lp < (UGLISTLEN-1); lp++) {
 361                                 uglist[lp] = uglist[lp+1];
 362                                 uglistlsn[lp] = uglistlsn[lp+1];
 363                         }
 364                         ugpos--;
 365                 } else {
 366                         uglistsize++;
 367                 }
 368
 369                 uglist[ugpos] = malloc(strlen(room_name)+1);
 370                 strcpy(uglist[ugpos], room_name);
 371                 uglistlsn[ugpos] = ls;
 372         }
 373
 374         /* first try an exact match */
 375         r = CtdlIPCGotoRoom(ipc, towhere, "", &room, aaa);
 376         if (r / 10 == 54) {
 377                 newprompt("Enter room password: ", bbb, 9);
 378                 r = CtdlIPCGotoRoom(ipc, towhere, bbb, &room, aaa);
 379                 if (r / 10 == 54) {
 380                         scr_printf("Wrong password.\n");
 381                         return;
 382                 }
 383         }
 384
 385         /*
 386          * If a match is not found, try a partial match.
 387          * Partial matches anywhere in the string carry a weight of 1,
 388          * left-aligned matches carry a weight of 2.  Pick the room that
 389          * has the highest-weighted match.  Do not match on forgotten
 390          * rooms.
 391          */
 392         if (r / 100 != 2) {
 393                 struct march *march = NULL;
 394
 395                 best_match = 0;
 396                 strcpy(bbb, "");
 397
 398                 r = CtdlIPCKnownRooms(ipc, SubscribedRooms, AllFloors, &march, aaa);
 399                 if (r / 100 == 1) {
 400                         /* Run the roomlist; free the data as we go */
 401                         struct march *mp = march;       /* Current */
 402
 403                         while (mp) {
 404                                 partial_match = 0;
 405                                 if (pattern(mp->march_name, towhere) >= 0) {
 406                                         partial_match = 1;
 407                                 }
 408                                 if (!strncasecmp(mp->march_name, towhere, strlen(towhere))) {
 409                                         partial_match = 2;
 410                                 }
 411                                 if (partial_match > best_match) {
 412                                         strcpy(bbb, mp->march_name);
 413                                         best_match = partial_match;
 414                                 }
 415                                 /* Both pointers are NULL at end of list */
 416                                 march = mp->next;
 417                                 free(mp);
 418                                 mp = march;
 419                         }
 420                 }
 421
 422                 if (strlen(bbb) == 0) {
 423                         scr_printf("No room '%s'.\n", towhere);
 424                         return;
 425                 }
 426                 room = NULL;
 427                 r = CtdlIPCGotoRoom(ipc, bbb, "", &room, aaa);
 428         }
 429         if (r / 100 != 1 && r / 100 != 2) {
 430                 scr_printf("%s\n", aaa);
 431                 return;
 432         }
 433         safestrncpy(room_name, room->RRname, ROOMNAMELEN);
 434         room_flags = room->RRflags;
 435         from_floor = curr_floor;
 436         curr_floor = room->RRfloor;
 437
 438         remove_march(room_name, 0);
 439         if (!strcasecmp(towhere, "_BASEROOM_"))
 440                 remove_march(towhere, 0);
 441         if (!room->RRunread)
 442                 next_lazy_cmd = 5;      /* Don't read new if no new msgs */
 443         if ((from_floor != curr_floor) && (display_name > 0) && (floor_mode == 1)) {
 444                 if (floorlist[(int) curr_floor][0] == 0)
 445                         load_floorlist(ipc);
 446                 scr_printf("(Entering floor: %s)\n", &floorlist[(int) curr_floor][0]);
 447         }
 448         if (display_name == 1) {
 449                 color(BRIGHT_WHITE);
 450                 scr_printf("%s ", room_name);
 451                 color(DIM_WHITE);
 452                 scr_printf("- ");
 453         }
 454         if (display_name != 2) {
 455                 color(BRIGHT_YELLOW);
 456                 scr_printf("%d ", room->RRunread);
 457                 color(DIM_WHITE);
 458                 scr_printf("new of ");
 459                 color(BRIGHT_YELLOW);
 460                 scr_printf("%d ", room->RRtotal);
 461                 color(DIM_WHITE);
 462                 scr_printf("messages.\n");
 463         }
 464         highest_msg_read = room->RRlastread;
 465         maxmsgnum = room->RRhighest;
 466         is_mail = room->RRismailbox;
 467         is_room_aide = room->RRaide;
 468         ls = room->RRlastread;
 469
 470         /* read info file if necessary */
 471         if (room->RRinfoupdated > 0)
 472                 readinfo(ipc);
 473
 474         /* check for newly arrived mail if we can */
 475         newmailcount = room->RRnewmail;
 476         if (newmailcount > 0) {
 477                 color(BRIGHT_RED);
 478                 if (newmailcount == 1) {
 479                         scr_printf("*** A new mail message has arrived.\n");
 480                 }
 481                 else {
 482                         scr_printf("*** %d new mail messages have arrived.\n",
 483                                         newmailcount);
 484                 }
 485                 color(DIM_WHITE);
 486                 if (strlen(rc_gotmail_cmd) > 0) {
 487                         system(rc_gotmail_cmd);
 488                 }
 489         }
 490         status_line(ipc->ServInfo.humannode, ipc->ServInfo.site_location,
 491                         room_name, secure, newmailcount);
 492 }
 493
 494 /* Goto next room having unread messages.
 495  * We want to skip over rooms that the user has already been to, and take the
 496  * user back to the lobby when done.  The room we end up in is placed in
 497  * newroom - which is set to 0 (the lobby) initially.
 498  */
 499 void gotonext(CtdlIPC *ipc)
 500 {
 501         char buf[SIZ];
 502         struct march *mptr, *mptr2;
 503         char next_room[ROOMNAMELEN];
 504         int r;                          /* IPC response code */
 505
 506         /* Check to see if the march-mode list is already allocated.
 507          * If it is, pop the first room off the list and go there.
 508          */
 509         if (march == NULL) {
 510                 r = CtdlIPCKnownRooms(ipc, SubscribedRoomsWithNewMessages,
 511                                         AllFloors, &march, buf);
 512
 513 /* add _BASEROOM_ to the end of the march list, so the user will end up
 514  * in the system base room (usually the Lobby>) at the end of the loop
 515  */
 516                 mptr = (struct march *) malloc(sizeof(struct march));
 517                 mptr->next = NULL;
 518                 strcpy(mptr->march_name, "_BASEROOM_");
 519                 if (march == NULL) {
 520                         march = mptr;
 521                 } else {
 522                         mptr2 = march;
 523                         while (mptr2->next != NULL)
 524                                 mptr2 = mptr2->next;
 525                         mptr2->next = mptr;
 526                 }
 527 /*
 528  * ...and remove the room we're currently in, so a <G>oto doesn't make us
 529  * walk around in circles
 530  */
 531                 remove_march(room_name, 0);
 532         }
 533         if (march != NULL) {
 534                 strcpy(next_room, pop_march(curr_floor, march));
 535         } else {
 536                 strcpy(next_room, "_BASEROOM_");
 537         }
 538         remove_march(next_room, 0);
 539         dotgoto(ipc, next_room, 1, 0);
 540 }
 541
 542 /*
 543  * forget all rooms on a given floor
 544  */
 545 void forget_all_rooms_on(CtdlIPC *ipc, int ffloor)
 546 {
 547         char buf[SIZ];
 548         struct march *flist = NULL;
 549         struct march *fptr = NULL;
 550         struct ctdlipcroom *room = NULL;
 551         int r;                          /* IPC response code */
 552
 553         scr_printf("Forgetting all rooms on %s...\n", &floorlist[ffloor][0]);
 554         scr_flush();
 555         remove_march("_FLOOR_", ffloor);
 556         r = CtdlIPCKnownRooms(ipc, AllAccessibleRooms, ffloor, &flist, buf);
 557         if (r / 100 != 1) {
 558                 scr_printf("Error %d: %s\n", r, buf);
 559                 return;
 560         }
 561         while (flist) {
 562                 r = CtdlIPCGotoRoom(ipc, flist->march_name, "", &room, buf);
 563                 if (r / 100 == 2) {
 564                         r = CtdlIPCForgetRoom(ipc, buf);
 565                         if (r / 100 != 2) {
 566                                 scr_printf("Error %d: %s\n", r, buf);
 567                         }
 568
 569                 }
 570                 fptr = flist;
 571                 flist = flist->next;
 572                 free(fptr);
 573         }
 574 }
 575
 576
 577 /*
 578  * routine called by gotofloor() to move to a new room on a new floor
 579  */
 580 void gf_toroom(CtdlIPC *ipc, char *towhere, int mode)
 581 {
 582         int floor_being_left;
 583
 584         floor_being_left = curr_floor;
 585
 586         if (mode == GF_GOTO) {          /* <;G>oto mode */
 587                 updatels(ipc);
 588                 dotgoto(ipc, towhere, 1, 0);
 589         }
 590         else if (mode == GF_SKIP) {     /* <;S>kip mode */
 591                 dotgoto(ipc, towhere, 1, 0);
 592                 remove_march("_FLOOR_", floor_being_left);
 593         }
 594         else if (mode == GF_ZAP) {      /* <;Z>ap mode */
 595                 dotgoto(ipc, towhere, 1, 0);
 596                 remove_march("_FLOOR_", floor_being_left);
 597                 forget_all_rooms_on(ipc, floor_being_left);
 598         }
 599 }
 600
 601
 602 /*
 603  * go to a new floor
 604  */
 605 void gotofloor(CtdlIPC *ipc, char *towhere, int mode)
 606 {
 607         int a, tofloor;
 608         int r;          /* IPC response code */
 609         struct march *mptr;
 610         char buf[SIZ], targ[SIZ];
 611
 612         if (floorlist[0][0] == 0)
 613                 load_floorlist(ipc);
 614         tofloor = (-1);
 615         for (a = 0; a < 128; ++a)
 616                 if (!strcasecmp(&floorlist[a][0], towhere))
 617                         tofloor = a;
 618
 619         if (tofloor < 0) {
 620                 for (a = 0; a < 128; ++a) {
 621                         if (!strncasecmp(&floorlist[a][0], towhere, strlen(towhere))) {
 622                                 tofloor = a;
 623                         }
 624                 }
 625         }
 626         if (tofloor < 0) {
 627                 for (a = 0; a < 128; ++a)
 628                         if (pattern(towhere, &floorlist[a][0]) > 0)
 629                                 tofloor = a;
 630         }
 631         if (tofloor < 0) {
 632                 scr_printf("No floor '%s'.\n", towhere);
 633                 return;
 634         }
 635         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 636                 if ((mptr->march_floor) == tofloor) {
 637                         gf_toroom(ipc, mptr->march_name, mode);
 638                         return;
 639                 }
 640         }
 641
 642         /* Find first known room on the floor */
 643
 644         strcpy(targ, "");
 645         mptr = NULL;
 646         r = CtdlIPCKnownRooms(ipc, SubscribedRooms, tofloor, &mptr, buf);
 647         if (r / 100 == 1) {
 648                 struct march *tmp = mptr;
 649
 650                 /*. . . according to room order */
 651                 if (mptr)
 652             strcpy(targ, pop_march(tofloor, mptr));
 653                 while (mptr) {
 654                         tmp = mptr->next;
 655                         free(mptr);
 656                         mptr = tmp;
 657                 }
 658         }
 659         if (strlen(targ) > 0) {
 660                 gf_toroom(ipc, targ, mode);
 661                 return;
 662         }
 663
 664         /* No known rooms on the floor; unzap the first one then */
 665
 666         strcpy(targ, "");
 667         mptr = NULL;
 668         r = CtdlIPCKnownRooms(ipc, AllAccessibleRooms, tofloor, &mptr, buf);
 669         if (r / 100 == 1) {
 670                 struct march *tmp = mptr;
 671
 672         /*. . . according to room order */
 673                 if (mptr)
 674                         strcpy(targ, pop_march(tofloor, mptr));
 675                 while (mptr) {
 676                         tmp = mptr->next;
 677                         free(mptr);
 678                         mptr = tmp;
 679                 }
 680         }
 681         if (strlen(targ) > 0) {
 682                 gf_toroom(ipc, targ, mode);
 683         } else {
 684                 scr_printf("There are no rooms on '%s'.\n", &floorlist[tofloor][0]);
 685         }
 686 }
 687
 688 /*
 689  * Indexing mechanism for a room list, called by gotoroomstep()
 690  */
 691 void room_tree_list_query(struct ctdlroomlisting *rp, char *findrmname, int findrmslot, char *rmname, int *rmslot, int *rmtotal)
 692 {
 693         char roomname[ROOMNAMELEN];
 694         static int cur_rmslot = 0;
 695
 696         if (rp == NULL) {
 697                 cur_rmslot = 0;
 698                 return;
 699         }
 700
 701         if (rp->lnext != NULL) {
 702                 room_tree_list_query(rp->lnext, findrmname, findrmslot, rmname, rmslot, rmtotal);
 703         }
 704
 705         if (sigcaught == 0) {
 706                 strcpy(roomname, rp->rlname);
 707
 708                 if (rmname != NULL) {
 709                         if (cur_rmslot == findrmslot) {
 710                                 strcpy(rmname, roomname);
 711                         }
 712                 }
 713                 if (rmslot != NULL) {
 714                         if (!strcmp(roomname, findrmname)) {
 715                                 *rmslot = cur_rmslot;
 716                         }
 717                 }
 718                 cur_rmslot++;
 719         }
 720
 721         if (rp->rnext != NULL) {
 722                 room_tree_list_query(rp->rnext, findrmname, findrmslot, rmname, rmslot, rmtotal);
 723         }
 724
 725         if ((rmname == NULL) && (rmslot == NULL))
 726                 free(rp);
 727
 728         if (rmtotal != NULL) {
 729                 *rmtotal = cur_rmslot;
 730         }
 731 }
 732
 733 /*
 734  * step through rooms on current floor
 735  */
 736 void  gotoroomstep(CtdlIPC *ipc, int direction)
 737 {
 738         struct march *listing = NULL;
 739         struct march *mptr;
 740         int r;          /* IPC response code */
 741         char buf[SIZ];
 742         struct ctdlroomlisting *rl = NULL;
 743         struct ctdlroomlisting *rp;
 744         struct ctdlroomlisting *rs;
 745         int list_it;
 746         char rmname[ROOMNAMELEN];
 747         int rmslot;
 748         int rmtotal;
 749
 750         /* Ask the server for a room list */
 751         r = CtdlIPCKnownRooms(ipc, SubscribedRooms, (-1), &listing, buf);
 752         if (r / 100 != 1) {
 753                 listing = NULL;
 754         }
 755
 756         load_floorlist(ipc);
 757
 758         for (mptr = listing; mptr != NULL; mptr = mptr->next) {
 759                 list_it = 1;
 760
 761                 if ( floor_mode
 762                          && (mptr->march_floor != curr_floor))
 763                         list_it = 0;
 764
 765                 if (list_it) {
 766                         rp = malloc(sizeof(struct ctdlroomlisting));
 767                         strncpy(rp->rlname, mptr->march_name, ROOMNAMELEN);
 768                         rp->rlflags = mptr->march_flags;
 769                         rp->rlfloor = mptr->march_floor;
 770                         rp->rlorder = mptr->march_order;
 771                         rp->lnext = NULL;
 772                         rp->rnext = NULL;
 773
 774                         rs = rl;
 775                         if (rl == NULL) {
 776                                 rl = rp;
 777                         } else {
 778                                 while (rp != NULL) {
 779                                         if (rordercmp(rp, rs) < 0) {
 780                                                 if (rs->lnext == NULL) {
 781                                                         rs->lnext = rp;
 782                                                         rp = NULL;
 783                                                 } else {
 784                                                         rs = rs->lnext;
 785                                                 }
 786                                         } else {
 787                                                 if (rs->rnext == NULL) {
 788                                                         rs->rnext = rp;
 789                                                         rp = NULL;
 790                                                 } else {
 791                                                         rs = rs->rnext;
 792                                                 }
 793                                         }
 794                                 }
 795                         }
 796                 }
 797         }
 798
 799         /* Find position of current room */
 800         room_tree_list_query(NULL, NULL, 0, NULL, NULL, NULL);
 801         room_tree_list_query(rl,  room_name, 0, NULL, &rmslot, &rmtotal);
 802
 803         if (direction == 0) { /* Previous room */
 804                 /* If we're at the first room, wrap to the last room */
 805                 if (rmslot == 0) {
 806                         rmslot = rmtotal - 1;
 807                 } else {
 808                         rmslot--;
 809                 }
 810         } else {                 /* Next room */
 811                 /* If we're at the last room, wrap to the first room */
 812                 if (rmslot == rmtotal - 1) {
 813                         rmslot = 0;
 814                 } else {
 815                         rmslot++;
 816                 }
 817         }
 818
 819         /* Get name of next/previous room */
 820         room_tree_list_query(NULL, NULL, 0, NULL, NULL, NULL);
 821         room_tree_list_query(rl,  NULL, rmslot, rmname, NULL, NULL);
 822
 823         /* Free the tree */
 824         room_tree_list_query(rl, NULL, 0, NULL, NULL, NULL);
 825
 826         updatels(ipc);
 827         dotgoto(ipc, rmname, 1, 0);
 828 }
 829
 830
 831 /*
 832  * step through floors on system
 833  */
 834 void  gotofloorstep(CtdlIPC *ipc, int direction)
 835 {
 836         int  tofloor;
 837
 838         if (floorlist[0][0] == 0)
 839                 load_floorlist(ipc);
 840
 841         if (direction == 0) { /* Previous floor */
 842                 if (curr_floor) tofloor = curr_floor - 1;
 843                 else tofloor = 127;
 844
 845                 while (!floorlist[tofloor][0]) tofloor--;
 846         } else {                   /* Next floor */
 847                 if (curr_floor < 127) tofloor = curr_floor + 1;
 848                 else tofloor = 0;
 849
 850                 while (!floorlist[tofloor][0] && tofloor < 127) tofloor++;
 851                 if (!floorlist[tofloor][0])     tofloor = 0;
 852         }
 853         /* ;g works when not in floor mode so . . . */
 854         if (!floor_mode) {
 855                 scr_printf("(%s)\n", floorlist[tofloor] );
 856         }
 857
 858         gotofloor(ipc, floorlist[tofloor], GF_GOTO);
 859 }
 860
 861
 862 /*
 863  * forget all rooms on current floor
 864  */
 865 void forget_this_floor(CtdlIPC *ipc)
 866 {
 867         if (curr_floor == 0) {
 868                 scr_printf("Can't forget this floor.\n");
 869                 return;
 870         }
 871         if (floorlist[0][0] == 0) {
 872                 load_floorlist(ipc);
 873         }
 874         scr_printf("Are you sure you want to forget all rooms on %s? ",
 875                &floorlist[(int) curr_floor][0]);
 876         if (yesno() == 0) {
 877                 return;
 878         }
 879
 880         gf_toroom(ipc, "_BASEROOM_", GF_ZAP);
 881 }
 882
 883
 884 /*
 885  * Figure out the physical screen dimensions, if we can
 886  * WARNING:  this is now called from a signal handler!
 887  */
 888 void check_screen_dims(void)
 889 {
 890 #ifdef TIOCGWINSZ
 891         struct {
 892                 unsigned short height;  /* rows */
 893                 unsigned short width;   /* columns */
 894                 unsigned short xpixels;
 895                 unsigned short ypixels;         /* pixels */
 896         } xwinsz;
 897
 898         if (have_xterm) {       /* dynamically size screen if on an xterm */
 899                 if (ioctl(0, TIOCGWINSZ, &xwinsz) == 0) {
 900                         if (xwinsz.height)
 901                                 screenheight = is_curses_enabled() ? (int)xwinsz.height - 1 : (int) xwinsz.height;
 902                         if (xwinsz.width)
 903                                 screenwidth = (int) xwinsz.width;
 904                 }
 905         }
 906 #endif
 907 }
 908
 909
 910 /*
 911  * set floor mode depending on client, server, and user settings
 912  */
 913 void set_floor_mode(CtdlIPC* ipc)
 914 {
 915         if (ipc->ServInfo.ok_floors == 0) {
 916                 floor_mode = 0; /* Don't use floors if the server */
 917         }
 918         /* doesn't support them!          */
 919         else {
 920                 if (rc_floor_mode == RC_NO) {   /* never use floors */
 921                         floor_mode = 0;
 922                 }
 923                 if (rc_floor_mode == RC_YES) {  /* always use floors */
 924                         floor_mode = 1;
 925                 }
 926                 if (rc_floor_mode == RC_DEFAULT) {      /* user choice */
 927                         floor_mode = ((userflags & US_FLOORS) ? 1 : 0);
 928                 }
 929         }
 930 }
 931
 932 /*
 933  * Set or change the user's password
 934  */
 935 int set_password(CtdlIPC *ipc)
 936 {
 937         char pass1[20];
 938         char pass2[20];
 939         char buf[SIZ];
 940
 941         if (strlen(rc_password) > 0) {
 942                 strcpy(pass1, rc_password);
 943                 strcpy(pass2, rc_password);
 944         } else {
 945                 IFNEXPERT formout(ipc, "changepw");
 946                 newprompt("Enter a new password: ", pass1, -19);
 947                 newprompt("Enter it again to confirm: ", pass2, -19);
 948         }
 949         strproc(pass1);
 950         strproc(pass2);
 951         if (!strcasecmp(pass1, pass2)) {
 952                 CtdlIPCChangePassword(ipc, pass1, buf);
 953                 scr_printf("%s\n", buf);
 954                 offer_to_remember_password(ipc, hostbuf, portbuf, fullname, pass1);
 955                 return (0);
 956         } else {
 957                 scr_printf("*** They don't match... try again.\n");
 958                 return (1);
 959         }
 960 }
 961
 962
 963
 964 /*
 965  * get info about the server we've connected to
 966  */
 967 void get_serv_info(CtdlIPC *ipc, char *supplied_hostname)
 968 {
 969         char buf[SIZ];
 970
 971         CtdlIPCServerInfo(ipc, buf);
 972
 973         /* be nice and identify ourself to the server */
 974         CtdlIPCIdentifySoftware(ipc, SERVER_TYPE, 0, REV_LEVEL,
 975                  (ipc->isLocal ? "local" : CITADEL),
 976                  (supplied_hostname) ? supplied_hostname :
 977                  /* Look up the , in the bible if you're confused */
 978                  (locate_host(ipc, buf), buf), buf);
 979
 980         /* Tell the server what our preferred content formats are */
 981         if ((CtdlIPCSpecifyPreferredFormats(ipc, buf, "text/html|text/plain") / 100 )== 2) {
 982                 can_do_msg4 = 1;
 983         }
 984 }
 985
 986
 987
 988 /*
 989  * Record compare function for SortOnlineUsers()
 990  */
 991 int idlecmp(const void *rec1, const void *rec2) {
 992         time_t i1, i2;
 993
 994         i1 = extract_long(rec1, 5);
 995         i2 = extract_long(rec2, 5);
 996
 997         if (i1 < i2) return(1);
 998         if (i1 > i2) return(-1);
 999         return(0);
1000 }
1001
1002
1003 /*
1004  * Sort the list of online users by idle time.
1005  * This function frees the supplied buffer, and returns a new one
1006  * to the caller.  The caller is responsible for freeing the returned buffer.
1007  */
1008 char *SortOnlineUsers(char *listing) {
1009         int rows;
1010         char *sortbuf;
1011         char *retbuf;
1012         char buf[SIZ];
1013         int i;
1014
1015         rows = num_tokens(listing, '\n');
1016         sortbuf = malloc(rows * SIZ);
1017         if (sortbuf == NULL) return(listing);
1018         retbuf = malloc(rows * SIZ);
1019         if (retbuf == NULL) {
1020                 free(sortbuf);
1021                 return(listing);
1022         }
1023
1024         /* Copy the list into a fixed-record-size array for sorting */
1025         for (i=0; i<rows; ++i) {
1026                 memset(buf, 0, SIZ);
1027                 extract_token(buf, listing, i, '\n', sizeof buf);
1028                 memcpy(&sortbuf[i*SIZ], buf, (size_t)SIZ);
1029         }
1030
1031         /* Do the sort */
1032         qsort(sortbuf, rows, SIZ, idlecmp);
1033
1034         /* Copy back to a \n delimited list */
1035         strcpy(retbuf, "");
1036         for (i=0; i<rows; ++i) {
1037                 strcat(retbuf, &sortbuf[i*SIZ]);
1038                 if (i<(rows-1)) strcat(retbuf, "\n");
1039         }
1040         return(retbuf);
1041 }
1042
1043
1044
1045 /*
1046  * Display list of users currently logged on to the server
1047  */
1048 void who_is_online(CtdlIPC *ipc, int longlist)
1049 {
1050         char buf[SIZ], username[SIZ], roomname[SIZ], fromhost[SIZ];
1051         char flags[SIZ];
1052         char actual_user[SIZ], actual_room[SIZ], actual_host[SIZ];
1053         char clientsoft[SIZ];
1054         time_t timenow = 0;
1055         time_t idletime, idlehours, idlemins, idlesecs;
1056         int last_session = (-1);
1057         int skipidle = 0;
1058         char *listing = NULL;
1059         int r;                          /* IPC response code */
1060
1061         if (longlist == 2) {
1062                 longlist = 0;
1063                 skipidle = 1;
1064         }
1065
1066         if (!longlist) {
1067                 color(BRIGHT_WHITE);
1068                 pprintf("           User Name               Room           Idle        From host\n");
1069                 color(DIM_WHITE);
1070                 pprintf("   ------------------------- -------------------- ---- ------------------------\n");
1071         }
1072         r = CtdlIPCOnlineUsers(ipc, &listing, &timenow, buf);
1073         listing = SortOnlineUsers(listing);
1074         if (r / 100 == 1) {
1075                 while (strlen(listing) > 0) {
1076                         int isidle = 0;
1077
1078                         /* Get another line */
1079                         extract_token(buf, listing, 0, '\n', sizeof buf);
1080                         remove_token(listing, 0, '\n');
1081
1082                         extract_token(username, buf, 1, '|', sizeof username);
1083                         extract_token(roomname, buf, 2, '|', sizeof roomname);
1084                         extract_token(fromhost, buf, 3, '|', sizeof fromhost);
1085                         extract_token(clientsoft, buf, 4, '|', sizeof clientsoft);
1086                         extract_token(flags, buf, 7, '|', sizeof flags);
1087
1088                         idletime = timenow - extract_long(buf, 5);
1089                         idlehours = idletime / 3600;
1090                         idlemins = (idletime - (idlehours * 3600)) / 60;
1091                         idlesecs = (idletime - (idlehours * 3600) - (idlemins * 60));
1092
1093                         if (idletime > rc_idle_threshold) {
1094                                 /*
1095                                 while (strlen(roomname) < 20) {
1096                                         strcat(roomname, " ");
1097                                 }
1098                                 strcpy(&roomname[14], "[idle]");
1099                                 */
1100                                 if (skipidle)
1101                                         isidle = 1;
1102                         }
1103
1104                         if (longlist) {
1105                                 extract_token(actual_user, buf, 8, '|', sizeof actual_user);
1106                                 extract_token(actual_room, buf, 9, '|', sizeof actual_room);
1107                                 extract_token(actual_host, buf, 10, '|', sizeof actual_host);
1108
1109                                 pprintf("  Flags: %s\n", flags);
1110                                 pprintf("Session: %d\n", extract_int(buf, 0));
1111                                 pprintf("   Name: %s\n", username);
1112                                 pprintf("In room: %s\n", roomname);
1113                                 pprintf("   Host: %s\n", fromhost);
1114                                 pprintf(" Client: %s\n", clientsoft);
1115                                 pprintf("   Idle: %ld:%02ld:%02ld\n",
1116                                         (long) idlehours,
1117                                         (long) idlemins,
1118                                         (long) idlesecs);
1119
1120                                 if ( (strlen(actual_user)+strlen(actual_room)+strlen(actual_host)) > 0) {
1121                                         pprintf("(really ");
1122                                         if (strlen(actual_user)>0) pprintf("<%s> ", actual_user);
1123                                         if (strlen(actual_room)>0) pprintf("in <%s> ", actual_room);
1124                                         if (strlen(actual_host)>0) pprintf("from <%s> ", actual_host);
1125                                         pprintf(")\n");
1126                                 }
1127                                 pprintf("\n");
1128
1129                         } else {
1130                     if (isidle == 0) {
1131                                 if (extract_int(buf, 0) == last_session) {
1132                                         pprintf("        ");
1133                                 } else {
1134                                         color(BRIGHT_MAGENTA);
1135                                         pprintf("%-3s", flags);
1136                                 }
1137                                 last_session = extract_int(buf, 0);
1138                                 color(BRIGHT_CYAN);
1139                                 pprintf("%-25s ", username);
1140                                 color(BRIGHT_MAGENTA);
1141                                 roomname[20] = 0;
1142                                 pprintf("%-20s ", roomname);
1143                                 if (idletime > rc_idle_threshold) {
1144                                         /* over 1000d, must be gone fishing */
1145                                         if (idlehours > 23999) {
1146                                                 pprintf("fish");
1147                                         /* over 10 days */
1148                                         } else if (idlehours > 239) {
1149                                                 pprintf("%3ldd",
1150                                                         idlehours / 24);
1151                                         /* over 10 hours */
1152                                         } else if (idlehours > 9) {
1153                                                 pprintf("%1ldd%02ld",
1154                                                         idlehours / 24,
1155                                                         idlehours % 24);
1156                                         /* less than 10 hours */
1157                                         } else {
1158                                                 pprintf("%1ld:%02ld",
1159                                                         idlehours, idlemins);
1160                                         }
1161                                 }
1162                                 else {
1163                                         pprintf("    ");
1164                                 }
1165                                 pprintf(" ");
1166                                 color(BRIGHT_CYAN);
1167                                 fromhost[24] = '\0';
1168                                 pprintf("%-24s\n", fromhost);
1169                                 color(DIM_WHITE);
1170                         }
1171                         }
1172                 }
1173         }
1174         free(listing);
1175 }
1176
1177 void enternew(CtdlIPC *ipc, char *desc, char *buf, int maxlen)
1178 {
1179         char bbb[128];
1180         snprintf(bbb, sizeof bbb, "Enter in your new %s: ", desc);
1181         newprompt(bbb, buf, maxlen);
1182 }
1183
1184
1185
1186 int shift(int argc, char **argv, int start, int count) {
1187         int i;
1188
1189         for (i=start; i<(argc-count); ++i) {
1190                 argv[i] = argv[i+count];
1191         }
1192         argc = argc - count;
1193         return argc;
1194 }
1195
1196 static void statusHook(char *s) {
1197         sln_printf(s);
1198         sln_flush();
1199 }
1200
1201 /*
1202  * main
1203  */
1204 int main(int argc, char **argv)
1205 {
1206         int a, b, mcmd;
1207         char aaa[100], bbb[100];/* general purpose variables */
1208         char argbuf[32];        /* command line buf */
1209         char nonce[NONCE_SIZE];
1210         char *telnet_client_host = NULL;
1211         char *sptr, *sptr2;     /* USed to extract the nonce */
1212         char hexstring[MD5_HEXSTRING_SIZE];
1213         int stored_password = 0;
1214         char password[SIZ];
1215         struct ctdlipcmisc chek;
1216         struct ctdluser *myself = NULL;
1217         CtdlIPC* ipc;                   /* Our server connection */
1218         int r;                          /* IPC result code */
1219
1220         int relh=0;
1221         int home=0;
1222         char relhome[PATH_MAX]="";
1223         char ctdldir[PATH_MAX]=CTDLDIR;
1224
1225
1226
1227         calc_dirs_n_files(relh, home, relhome, ctdldir);
1228
1229         setIPCDeathHook(screen_delete);
1230         setIPCErrorPrintf(err_printf);
1231         setCryptoStatusHook(statusHook);
1232
1233         /* Permissions sanity check - don't run citadel setuid/setgid */
1234         if (getuid() != geteuid()) {
1235                 err_printf("Please do not run citadel setuid!\n");
1236                 logoff(NULL, 3);
1237         } else if (getgid() != getegid()) {
1238                 err_printf("Please do not run citadel setgid!\n");
1239                 logoff(NULL, 3);
1240         }
1241
1242         stty_ctdl(SB_SAVE);     /* Store the old terminal parameters */
1243         load_command_set();     /* parse the citadel.rc file */
1244         stty_ctdl(SB_NO_INTR);  /* Install the new ones */
1245         /* signal(SIGHUP, dropcarr);FIXME */    /* Cleanup gracefully if carrier is dropped */
1246         signal(SIGPIPE, dropcarr);      /* Cleanup gracefully if local conn. dropped */
1247         signal(SIGTERM, dropcarr);      /* Cleanup gracefully if terminated */
1248         signal(SIGCONT, catch_sigcont); /* Catch SIGCONT so we can reset terminal */
1249 #ifdef SIGWINCH
1250         signal(SIGWINCH, scr_winch);    /* Window resize signal */
1251 #endif
1252
1253 #ifdef HAVE_OPENSSL
1254         arg_encrypt = RC_DEFAULT;
1255 #endif
1256 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1257         arg_screen = RC_DEFAULT;
1258 #endif
1259
1260         /*
1261          * Handle command line options as if we were called like /bin/login
1262          * (i.e. from in.telnetd)
1263          */
1264         for (a=0; a<argc; ++a) {
1265                 if ((argc > a+1) && (!strcmp(argv[a], "-h")) ) {
1266                         telnet_client_host = argv[a+1];
1267                         argc = shift(argc, argv, a, 2);
1268                 }
1269                 if (!strcmp(argv[a], "-x")) {
1270 #ifdef HAVE_OPENSSL
1271                         arg_encrypt = RC_NO;
1272 #endif
1273                         argc = shift(argc, argv, a, 1);
1274                 }
1275                 if (!strcmp(argv[a], "-X")) {
1276 #ifdef HAVE_OPENSSL
1277                         arg_encrypt = RC_YES;
1278                         argc = shift(argc, argv, a, 1);
1279 #else
1280                         fprintf(stderr, "Not compiled with encryption support");
1281                         return 1;
1282 #endif
1283                 }
1284                 if (!strcmp(argv[a], "-s")) {
1285 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1286                         arg_screen = RC_NO;
1287 #endif
1288                         argc = shift(argc, argv, a, 1);
1289                 }
1290                 if (!strcmp(argv[a], "-S")) {
1291 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1292                         arg_screen = RC_YES;
1293 #endif
1294                         argc = shift(argc, argv, a, 1);
1295                 }
1296                 if (!strcmp(argv[a], "-p")) {
1297                         struct stat st;
1298
1299                         if (chdir(CTDLDIR) < 0) {
1300                                 perror("can't change to " CTDLDIR);
1301                                 logoff(NULL, 3);
1302                         }
1303
1304                         /*
1305                          * Drop privileges if necessary. We stat
1306                          * citadel.config to get the uid/gid since it's
1307                          * guaranteed to have the uid/gid we want.
1308                          */
1309                         if (!getuid() || !getgid()) {
1310                                 if (stat(file_citadel_config, &st) < 0) {
1311                                         perror("couldn't stat citadel.config");
1312                                         logoff(NULL, 3);
1313                                 }
1314                                 if (!getgid() && (setgid(st.st_gid) < 0)) {
1315                                         perror("couldn't change gid");
1316                                         logoff(NULL, 3);
1317                                 }
1318                                 if (!getuid() && (setuid(st.st_uid) < 0)) {
1319                                         perror("couldn't change uid");
1320                                         logoff(NULL, 3);
1321                                 }
1322                                 /*
1323                                   scr_printf("Privileges changed to uid %d gid %d\n",
1324                                   getuid(), getgid());
1325                                 */
1326                         }
1327                         argc = shift(argc, argv, a, 1);
1328                 }
1329         }
1330
1331
1332         screen_new();
1333
1334 #ifdef __CYGWIN__
1335         newprompt("Connect to (return for local server): ", hostbuf, 64);
1336 #endif
1337
1338         sln_printf("Attaching to server... \r");
1339         sln_flush();
1340         ipc = CtdlIPC_new(argc, argv, hostbuf, portbuf);
1341         if (!ipc) {
1342                 screen_delete();
1343                 error_printf("Can't connect: %s\n", strerror(errno));
1344                 logoff(NULL, 3);
1345         }
1346 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1347         CtdlIPC_SetNetworkStatusCallback(ipc, wait_indicator);
1348 #endif
1349         ipc_for_signal_handlers = ipc;  /* KLUDGE cover your eyes */
1350
1351         CtdlIPC_chat_recv(ipc, aaa);
1352         if (aaa[0] != '2') {
1353                 scr_printf("%s\n", &aaa[4]);
1354                 logoff(ipc, atoi(aaa));
1355         }
1356
1357         /* If there is a [nonce] at the end, put the nonce in <nonce>, else nonce
1358          * is zeroized.
1359          */
1360
1361         if ((sptr = strchr(aaa, '<')) == NULL)
1362                 {
1363                         nonce[0] = '\0';
1364                 }
1365         else
1366                 {
1367                         if ((sptr2 = strchr(sptr, '>')) == NULL)
1368                                 {
1369                                         nonce[0] = '\0';
1370                                 }
1371                         else
1372                                 {
1373                                         sptr2++;
1374                                         *sptr2 = '\0';
1375                                         strncpy(nonce, sptr, (size_t)NONCE_SIZE);
1376                                 }
1377                 }
1378
1379 #ifdef HAVE_OPENSSL
1380         /* Evaluate encryption preferences */
1381         if (arg_encrypt != RC_NO && rc_encrypt != RC_NO) {
1382                 if (!ipc->isLocal || arg_encrypt == RC_YES || rc_encrypt == RC_YES) {
1383                         secure = (CtdlIPCStartEncryption(ipc, aaa) / 100 == 2) ? 1 : 0;
1384                         if (!secure)
1385                                 error_printf("Can't encrypt: %s\n", aaa);
1386                 }
1387         }
1388 #endif
1389
1390         get_serv_info(ipc, telnet_client_host);
1391         scr_printf("%-24s\n%s\n%s\n", ipc->ServInfo.software, ipc->ServInfo.humannode,
1392                    ipc->ServInfo.site_location);
1393         scr_flush();
1394
1395         status_line(ipc->ServInfo.humannode, ipc->ServInfo.site_location, NULL,
1396                     secure, -1);
1397
1398         screenwidth = 80;       /* default screen dimensions */
1399         screenheight = 24;
1400
1401         scr_printf(" pause    next    stop\n");
1402         scr_printf(" ctrl-s  ctrl-o  ctrl-c\n\n");
1403         formout(ipc, "hello");  /* print the opening greeting */
1404         scr_printf("\n");
1405
1406  GSTA:  /* See if we have a username and password on disk */
1407         if (rc_remember_passwords) {
1408                 get_stored_password(hostbuf, portbuf, fullname, password);
1409                 if (strlen(fullname) > 0) {
1410                         r = CtdlIPCTryLogin(ipc, fullname, aaa);
1411                         if (r / 100 == 3) {
1412                                 if (*nonce) {
1413                                         r = CtdlIPCTryApopPassword(ipc, make_apop_string(password, nonce, hexstring, sizeof hexstring), aaa);
1414                                 } else {
1415                                         r = CtdlIPCTryPassword(ipc, password, aaa);
1416                                 }
1417                         }
1418
1419                         if (r / 100 == 2) {
1420                                 load_user_info(aaa);
1421                                 stored_password = 1;
1422                                 goto PWOK;
1423                         } else {
1424                                 set_stored_password(hostbuf, portbuf, "", "");
1425                         }
1426                 }
1427         }
1428
1429         termn8 = 0;
1430         newnow = 0;
1431         do {
1432                 if (strlen(rc_username) > 0) {
1433                         strcpy(fullname, rc_username);
1434                 } else {
1435                         newprompt("Enter your name: ", fullname, 29);
1436                 }
1437                 strproc(fullname);
1438                 if (!strcasecmp(fullname, "new")) {     /* just in case */
1439                         scr_printf("Please enter the name you wish to log in with.\n");
1440                 }
1441         } while (
1442                  (!strcasecmp(fullname, "bbs"))
1443                  || (!strcasecmp(fullname, "new"))
1444                  || (strlen(fullname) == 0));
1445
1446         if (!strcasecmp(fullname, "off")) {
1447                 mcmd = 29;
1448                 goto TERMN8;
1449         }
1450         /* sign on to the server */
1451         r = CtdlIPCTryLogin(ipc, fullname, aaa);
1452         if (r / 100 != 3)
1453                 goto NEWUSR;
1454
1455         /* password authentication */
1456         if (strlen(rc_password) > 0) {
1457                 strcpy(password, rc_password);
1458         } else {
1459                 newprompt("\rPlease enter your password: ", password, -19);
1460         }
1461         strproc(password);
1462
1463         if (*nonce) {
1464                 r = CtdlIPCTryApopPassword(ipc, make_apop_string(password, nonce, hexstring, sizeof hexstring), aaa);
1465         } else {
1466                 r = CtdlIPCTryPassword(ipc, password, aaa);
1467         }
1468
1469         if (r / 100 == 2) {
1470                 load_user_info(aaa);
1471                 offer_to_remember_password(ipc, hostbuf, portbuf,
1472                                            fullname, password);
1473                 goto PWOK;
1474         }
1475         scr_printf("<< wrong password >>\n");
1476         if (strlen(rc_password) > 0)
1477                 logoff(ipc, 2);
1478         goto GSTA;
1479
1480 NEWUSR: if (strlen(rc_password) == 0) {
1481                 scr_printf("'%s' not found.\n", fullname);
1482                 scr_printf("Type 'off' if you would like to exit.\n");
1483                 if (ipc->ServInfo.newuser_disabled == 1) {
1484                         goto GSTA;
1485                 }
1486                 scr_printf("Do you want to create a new user account called '%s'? ",
1487                         fullname);
1488                 if (yesno() == 0) {
1489                         goto GSTA;
1490                 }
1491         }
1492
1493         r = CtdlIPCCreateUser(ipc, fullname, 1, aaa);
1494         if (r / 100 != 2) {
1495                 scr_printf("%s\n", aaa);
1496                 goto GSTA;
1497         }
1498         load_user_info(aaa);
1499
1500         while (set_password(ipc) != 0);
1501         newnow = 1;
1502
1503         enter_config(ipc, 1);
1504
1505  PWOK:
1506         /* Switch color support on or off if we're in user mode */
1507         if (rc_ansi_color == 3) {
1508                 if (userflags & US_COLOR)
1509                         enable_color = 1;
1510                 else
1511                         enable_color = 0;
1512         }
1513
1514         color(BRIGHT_WHITE);
1515         scr_printf("\n%s\nAccess level: %d (%s)\n"
1516                    "User #%ld / Login #%d",
1517                    fullname, axlevel, axdefs[(int) axlevel],
1518                    usernum, timescalled);
1519         if (lastcall > 0L) {
1520                 scr_printf(" / Last login: %s",
1521                            asctime(localtime(&lastcall)));
1522         }
1523         scr_printf("\n");
1524
1525         r = CtdlIPCMiscCheck(ipc, &chek, aaa);
1526         if (r / 100 == 2) {
1527                 b = chek.newmail;
1528                 if (b > 0) {
1529                         color(BRIGHT_RED);
1530                         if (b == 1)
1531                                 scr_printf("*** You have a new private message in Mail>\n");
1532                         if (b > 1)
1533                                 scr_printf("*** You have %d new private messages in Mail>\n", b);
1534                         color(DIM_WHITE);
1535                         if (strlen(rc_gotmail_cmd) > 0) {
1536                                 system(rc_gotmail_cmd);
1537                         }
1538                 }
1539                 if ((axlevel >= 6) && (chek.needvalid > 0)) {
1540                         scr_printf("*** Users need validation\n");
1541                 }
1542                 if (chek.needregis > 0) {
1543                         scr_printf("*** Please register.\n");
1544                         formout(ipc, "register");
1545                         entregis(ipc);
1546                 }
1547         }
1548         /* Make up some temporary filenames for use in various parts of the
1549          * program.  Don't mess with these once they've been set, because we
1550          * will be unlinking them later on in the program and we don't
1551          * want to delete something that we didn't create. */
1552         CtdlMakeTempFileName(temp, sizeof temp);
1553         CtdlMakeTempFileName(temp2, sizeof temp2);
1554         CtdlMakeTempFileName(tempdir, sizeof tempdir);
1555
1556         /* Get screen dimensions.  First we go to a default of 80x24.  Then
1557          * we try to get the user's actual screen dimensions off the server.
1558          * However, if we're running on an xterm, all this stuff is
1559          * irrelevant because we're going to dynamically size the screen
1560          * during the session.
1561          */
1562         screenwidth = 80;
1563         screenheight = 24;
1564         r = CtdlIPCGetConfig(ipc, &myself, aaa);
1565         if (r == 2) {
1566                 screenwidth = myself->USscreenwidth;
1567                 screenheight = myself->USscreenheight;
1568         }
1569         if (getenv("TERM") != NULL)
1570                 if (!strcmp(getenv("TERM"), "xterm")) {
1571                         have_xterm = 1;
1572                 }
1573 #ifdef TIOCGWINSZ
1574         check_screen_dims();
1575 #endif
1576
1577         set_floor_mode(ipc);
1578
1579         /* Enter the lobby */
1580         dotgoto(ipc, "_BASEROOM_", 1, 0);
1581
1582         /* Main loop for the system... user is logged in. */
1583         uglistsize = 0;
1584
1585         if (newnow == 1)
1586                 readmsgs(ipc, LastMessages, ReadForward, 5);
1587         else
1588                 readmsgs(ipc, NewMessages, ReadForward, 0);
1589
1590         /* MAIN COMMAND LOOP */
1591         do {
1592                 mcmd = getcmd(ipc, argbuf);     /* Get keyboard command */
1593
1594 #ifdef TIOCGWINSZ
1595                 check_screen_dims();            /* if xterm, get screen size */
1596 #endif
1597
1598                 if (termn8 == 0)
1599                         switch (mcmd) {
1600                         case 1:
1601                                 formout(ipc, "help");
1602                                 break;
1603                         case 4:
1604                                 entmsg(ipc, 0, ((userflags & US_EXTEDIT) ? 2 : 0));
1605                                 break;
1606                         case 36:
1607                                 entmsg(ipc, 0, 1);
1608                                 break;
1609                         case 46:
1610                                 entmsg(ipc, 0, 2);
1611                                 break;
1612                         case 78:
1613                                 {
1614                                         /* Only m.author is used */
1615                                         struct ctdlipcmessage m;
1616                                         newprompt("What do you want your username to be? ",
1617                                                 m.author, USERNAME_SIZE - 1);
1618                                         m.text = "";
1619                                         r = CtdlIPCPostMessage(ipc, 2, &m, aaa);
1620                                         if (r / 100 != 2)
1621                                                 scr_printf("%s\n", aaa);
1622                                         else
1623                                                 entmsg(ipc, 0, 0);
1624                                 }
1625                                 break;
1626                         case 5:                         /* <G>oto */
1627                                 updatels(ipc);
1628                                 gotonext(ipc);
1629                                 break;
1630                         case 47:                        /* <A>bandon */
1631                                 if (!rc_alt_semantics) {
1632                                         updatelsa(ipc);
1633                                 }
1634                                 gotonext(ipc);
1635                                 break;
1636                         case 90:                        /* <.A>bandon */
1637                                 if (!rc_alt_semantics)
1638                                         updatelsa(ipc);
1639                                 dotgoto(ipc, argbuf, 0, 0);
1640                                 break;
1641                         case 58:                        /* <M>ail */
1642                                 updatelsa(ipc);
1643                                 dotgoto(ipc, "_MAIL_", 1, 0);
1644                                 break;
1645                         case 20:
1646                                 if (strlen(argbuf) > 0) {
1647                                         updatels(ipc);
1648                                         dotgoto(ipc, argbuf, 0, 0);
1649                                 }
1650                                 break;
1651                         case 52:
1652                                 if (strlen(argbuf) > 0) {
1653                                         if (rc_alt_semantics) {
1654                                                 updatelsa(ipc);
1655                                         }
1656                                         dotgoto(ipc, argbuf, 0, 0);
1657                                 }
1658                                 break;
1659                         case 95: /* what exactly is the numbering scheme supposed to be anyway? --Ford, there isn't one. -IO */
1660                                 dotungoto(ipc, argbuf);
1661                                 break;
1662                         case 10:
1663                                 readmsgs(ipc, AllMessages, ReadForward, 0);
1664                                 break;
1665                         case 9:
1666                                 readmsgs(ipc, LastMessages, ReadForward, 5);
1667                                 break;
1668                         case 13:
1669                                 readmsgs(ipc, NewMessages, ReadForward, 0);
1670                                 break;
1671                         case 11:
1672                                 readmsgs(ipc, AllMessages, ReadReverse, 0);
1673                                 break;
1674                         case 12:
1675                                 readmsgs(ipc, OldMessages, ReadReverse, 0);
1676                                 break;
1677                         case 71:
1678                                 readmsgs(ipc, LastMessages, ReadForward,
1679                                                 atoi(argbuf));
1680                                 break;
1681                         case 7:
1682                                 forget(ipc);
1683                                 break;
1684                         case 18:
1685                                 subshell();
1686                                 break;
1687                         case 38:
1688                                 updatels(ipc);
1689                                 entroom(ipc);
1690                                 break;
1691                         case 22:
1692                                 killroom(ipc);
1693                                 break;
1694                         case 32:
1695                                 userlist(ipc, argbuf);
1696                                 break;
1697                         case 27:
1698                                 invite(ipc);
1699                                 break;
1700                         case 28:
1701                                 kickout(ipc);
1702                                 break;
1703                         case 23:
1704                                 editthisroom(ipc);
1705                                 break;
1706                         case 14:
1707                                 roomdir(ipc);
1708                                 break;
1709                         case 33:
1710                                 download(ipc, 0);
1711                                 break;
1712                         case 34:
1713                                 download(ipc, 1);
1714                                 break;
1715                         case 31:
1716                                 download(ipc, 2);
1717                                 break;
1718                         case 43:
1719                                 download(ipc, 3);
1720                                 break;
1721                         case 45:
1722                                 download(ipc, 4);
1723                                 break;
1724                         case 55:
1725                                 download(ipc, 5);
1726                                 break;
1727                         case 39:
1728                                 upload(ipc, 0);
1729                                 break;
1730                         case 40:
1731                                 upload(ipc, 1);
1732                                 break;
1733                         case 42:
1734                                 upload(ipc, 2);
1735                                 break;
1736                         case 44:
1737                                 upload(ipc, 3);
1738                                 break;
1739                         case 57:
1740                                 cli_upload(ipc);
1741                                 break;
1742                         case 16:
1743                                 ungoto(ipc);
1744                                 break;
1745                         case 24:
1746                                 whoknows(ipc);
1747                                 break;
1748                         case 26:
1749                                 validate(ipc);
1750                                 break;
1751                         case 29:
1752                         case 30:
1753                                 if (!rc_alt_semantics) {
1754                                         updatels(ipc);
1755                                 }
1756                                 termn8 = 1;
1757                                 break;
1758                         case 48:
1759                                 enterinfo(ipc);
1760                                 break;
1761                         case 49:
1762                                 readinfo(ipc);
1763                                 break;
1764                         case 72:
1765                                 cli_image_upload(ipc, "_userpic_");
1766                                 break;
1767                         case 73:
1768                                 cli_image_upload(ipc, "_roompic_");
1769                                 break;
1770
1771                         case 74:
1772                                 snprintf(aaa, sizeof aaa, "_floorpic_|%d", curr_floor);
1773                                 cli_image_upload(ipc, aaa);
1774                                 break;
1775
1776                         case 75:
1777                                 enternew(ipc, "roomname", aaa, 20);
1778                                 r = CtdlIPCChangeRoomname(ipc, aaa, bbb);
1779                                 if (r / 100 != 2)
1780                                         scr_printf("\n%s\n", bbb);
1781                                 break;
1782                         case 76:
1783                                 enternew(ipc, "hostname", aaa, 25);
1784                                 r = CtdlIPCChangeHostname(ipc, aaa, bbb);
1785                                 if (r / 100 != 2)
1786                                         scr_printf("\n%s\n", bbb);
1787                                 break;
1788                         case 77:
1789                                 enternew(ipc, "username", aaa, 32);
1790                                 r = CtdlIPCChangeUsername(ipc, aaa, bbb);
1791                                 if (r / 100 != 2)
1792                                         scr_printf("\n%s\n", bbb);
1793                                 break;
1794
1795                         case 35:
1796                                 set_password(ipc);
1797                                 break;
1798
1799                         case 21:
1800                                 if (argbuf[0] == 0)
1801                                         strcpy(aaa, "?");
1802                                 display_help(ipc, argbuf);
1803                                 break;
1804
1805                         case 41:
1806                                 formout(ipc, "register");
1807                                 entregis(ipc);
1808                                 break;
1809
1810                         case 15:
1811                                 scr_printf("Are you sure (y/n)? ");
1812                                 if (yesno() == 1) {
1813                                         if (!rc_alt_semantics)
1814                                                 updatels(ipc);
1815                                         a = 0;
1816                                         termn8 = 1;
1817                                 }
1818                                 break;
1819
1820                         case 85:
1821                                 scr_printf("All users will be disconnected!  "
1822                                            "Really terminate the server? ");
1823                                 if (yesno() == 1) {
1824                                         if (!rc_alt_semantics)
1825                                                 updatels(ipc);
1826                                         r = CtdlIPCTerminateServerNow(ipc, aaa);
1827                                         scr_printf("%s\n", aaa);
1828                                         if (r / 100 == 2) {
1829                                                 a = 0;
1830                                                 termn8 = 1;
1831                                         }
1832                                 }
1833                                 break;
1834
1835                         case 86:
1836                                 scr_printf("Do you really want to schedule a "
1837                                            "server shutdown? ");
1838                                 if (yesno() == 1) {
1839                                         r = CtdlIPCTerminateServerScheduled(ipc, 1, aaa);
1840                                         if (r / 100 == 2) {
1841                                                 if (atoi(aaa)) {
1842                                                         scr_printf(
1843                                                                    "The Citadel server will terminate when all users are logged off.\n"
1844                                                                    );
1845                                                 } else {
1846                                                         scr_printf(
1847                                                                    "The Citadel server will not terminate.\n"
1848                                                                    );
1849                                                 }
1850                                         }
1851                                 }
1852                                 break;
1853
1854                         case 87:
1855                                 network_config_management(ipc, "listrecp",
1856                                                           "Message-by-message mailing list recipients");
1857                                 break;
1858
1859                         case 94:
1860                                 network_config_management(ipc, "digestrecp",
1861                                                           "Digest mailing list recipients");
1862                                 break;
1863
1864                         case 89:
1865                                 network_config_management(ipc, "ignet_push_share",
1866                                                           "Nodes with which we share this room");
1867                                 break;
1868
1869                         case 88:
1870                                 do_ignet_configuration(ipc);
1871                                 break;
1872
1873                         case 92:
1874                                 do_filterlist_configuration(ipc);
1875                                 break;
1876
1877                         case 6:
1878                                 if (rc_alt_semantics) {
1879                                         updatelsa(ipc);
1880                                 }
1881                                 gotonext(ipc);
1882                                 break;
1883
1884                         case 3:
1885                                 chatmode(ipc);
1886                                 break;
1887
1888                         case 2:
1889                                 if (ipc->isLocal) {
1890                                         screen_reset();
1891                                         stty_ctdl(SB_RESTORE);
1892                                         snprintf(aaa, sizeof aaa, "USERNAME=\042%s\042; export USERNAME;"
1893                                                  "exec ./subsystem %ld %d %d", fullname,
1894                                                  usernum, screenwidth, axlevel);
1895                                         ka_system(aaa);
1896                                         stty_ctdl(SB_NO_INTR);
1897                                         screen_set();
1898                                 } else {
1899                                         scr_printf("*** Can't run doors when server is not local.\n");
1900                                 }
1901                                 break;
1902
1903                         case 17:
1904                                 who_is_online(ipc, 0);
1905                                 break;
1906
1907                         case 79:
1908                                 who_is_online(ipc, 1);
1909                                 break;
1910
1911                         case 91:
1912                                 who_is_online(ipc, 2);
1913                                 break;
1914
1915                         case 80:
1916                                 do_system_configuration(ipc);
1917                                 break;
1918
1919                         case 82:
1920                                 do_internet_configuration(ipc);
1921                                 break;
1922
1923                         case 83:
1924                                 check_message_base(ipc);
1925                                 break;
1926
1927                         case 84:
1928                                 quiet_mode(ipc);
1929                                 break;
1930
1931                         case 93:
1932                                 stealth_mode(ipc);
1933                                 break;
1934
1935                         case 50:
1936                                 enter_config(ipc, 2);
1937                                 break;
1938
1939                         case 37:
1940                                 enter_config(ipc, 0);
1941                                 set_floor_mode(ipc);
1942                                 break;
1943
1944                         case 59:
1945                                 enter_config(ipc, 3);
1946                                 set_floor_mode(ipc);
1947                                 break;
1948
1949                         case 60:
1950                                 gotofloor(ipc, argbuf, GF_GOTO);
1951                                 break;
1952
1953                         case 61:
1954                                 gotofloor(ipc, argbuf, GF_SKIP);
1955                                 break;
1956
1957                         case 62:
1958                                 forget_this_floor(ipc);
1959                                 break;
1960
1961                         case 63:
1962                                 create_floor(ipc);
1963                                 break;
1964
1965                         case 64:
1966                                 edit_floor(ipc);
1967                                 break;
1968
1969                         case 65:
1970                                 kill_floor(ipc);
1971                                 break;
1972
1973                         case 66:
1974                                 enter_bio(ipc);
1975                                 break;
1976
1977                         case 67:
1978                                 read_bio(ipc);
1979                                 break;
1980
1981                         case 25:
1982                                 edituser(ipc, 25);
1983                                 break;
1984
1985                         case 96:
1986                                 edituser(ipc, 96);
1987                                 break;
1988
1989                         case 8:
1990                                 knrooms(ipc, floor_mode);
1991                                 scr_printf("\n");
1992                                 break;
1993
1994                         case 68:
1995                                 knrooms(ipc, 2);
1996                                 scr_printf("\n");
1997                                 break;
1998
1999                         case 69:
2000                                 misc_server_cmd(ipc, argbuf);
2001                                 break;
2002
2003                         case 70:
2004                                 edit_system_message(ipc, argbuf);
2005                                 break;
2006
2007                         case 19:
2008                                 listzrooms(ipc);
2009                                 scr_printf("\n");
2010                                 break;
2011
2012                         case 51:
2013                                 deletefile(ipc);
2014                                 break;
2015
2016                         case 53:
2017                                 netsendfile(ipc);
2018                                 break;
2019
2020                         case 54:
2021                                 movefile(ipc);
2022                                 break;
2023
2024                         case 56:
2025                                 page_user(ipc);
2026                                 break;
2027
2028             case 110:           /* <+> Next room */
2029                  gotoroomstep(ipc, 1);
2030                              break;
2031
2032             case 111:           /* <-> Previous room */
2033                  gotoroomstep(ipc, 0);
2034                              break;
2035
2036                         case 112:           /* <>> Next floor */
2037                  gotofloorstep(ipc, 1);
2038                              break;
2039
2040                         case 113:           /* <<> Previous floor */
2041                  gotofloorstep(ipc, 0);
2042                                  break;
2043
2044                         default: /* allow some math on the command */
2045                                 /* commands 100... to 100+MAX_EDITORS-1 will
2046                                    call the appropriate editor... in other
2047                                    words, command numbers 100+ will match
2048                                    the citadel.rc keys editor0, editor1, etc.*/
2049                                 if (mcmd >= 100 && mcmd < (100+MAX_EDITORS))
2050                                 {
2051                                         /* entmsg mode >=2 select editor */
2052                                         entmsg(ipc, 0, mcmd - 100 + 2);
2053                                         break;
2054                                 }
2055                         }       /* end switch */
2056         } while (termn8 == 0);
2057
2058 TERMN8: scr_printf("%s logged out.", fullname);
2059         termn8 = 0;
2060         color(ORIGINAL_PAIR);
2061         scr_printf("\n");
2062         while (march != NULL) {
2063                 remove_march(march->march_name, 0);
2064         }
2065         if (mcmd == 30) {
2066                 sln_printf("\n\nType 'off' to disconnect, or next user...\n");
2067         }
2068         CtdlIPCLogout(ipc);
2069         if ((mcmd == 29) || (mcmd == 15)) {
2070                 screen_delete();
2071                 stty_ctdl(SB_RESTORE);
2072                 formout(ipc, "goodbye");
2073                 logoff(ipc, 0);
2074         }
2075         goto GSTA;
2076
2077 }       /* end main() */