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
  54 #include "md5.h"
  55
  56 #define IFEXPERT if (userflags&US_EXPERT)
  57 #define IFNEXPERT if ((userflags&US_EXPERT)==0)
  58 #define IFAIDE if (axlevel>=6)
  59 #define IFNAIDE if (axlevel<6)
  60
  61 struct march *march = NULL;
  62
  63 /* globals associated with the client program */
  64 char temp[PATH_MAX];            /* Name of general-purpose temp file */
  65 char temp2[PATH_MAX];           /* Name of general-purpose temp file */
  66 char tempdir[PATH_MAX];         /* Name of general-purpose temp directory */
  67 char editor_paths[MAX_EDITORS][SIZ];    /* paths to external editors */
  68 char printcmd[SIZ];             /* print command */
  69 int editor_pid = (-1);
  70 char fullname[USERNAME_SIZE];
  71 int screenwidth;
  72 int screenheight;
  73 unsigned room_flags;
  74 char room_name[ROOMNAMELEN];
  75 char *uglist[UGLISTLEN]; /* size of the ungoto list */
  76 long uglistlsn[UGLISTLEN]; /* current read position for all the ungoto's. Not going to make any friends with this one. */
  77 int uglistsize = 0;
  78 char is_mail = 0;               /* nonzero when we're in a mail room */
  79 char axlevel = 0;               /* access level */
  80 char is_room_aide = 0;          /* boolean flag, 1 if room aide */
  81 int timescalled;
  82 int posted;
  83 unsigned userflags;
  84 long usernum = 0L;              /* user number */
  85 time_t lastcall = 0L;           /* Date/time of previous login */
  86 char newnow;
  87 long highest_msg_read;          /* used for <A>bandon room cmd */
  88 long maxmsgnum;                 /* used for <G>oto */
  89 char sigcaught = 0;
  90 char have_xterm = 0;            /* are we running on an xterm? */
  91 char rc_username[USERNAME_SIZE];
  92 char rc_password[32];
  93 char hostbuf[SIZ];
  94 char portbuf[SIZ];
  95 char rc_floor_mode;
  96 char floor_mode;
  97 char curr_floor = 0;            /* number of current floor */
  98 char floorlist[128][SIZ];       /* names of floors */
  99 int termn8 = 0;                 /* Set to nonzero to cause a logoff */
 100 int secure;                     /* Set to nonzero when wire is encrypted */
 101 int can_do_msg4 = 0;            /* Set to nonzero if the server can handle MSG4 commands */
 102
 103 extern char express_msgs;       /* express messages waiting! */
 104 extern int rc_ansi_color;       /* ansi color value from citadel.rc */
 105 extern int next_lazy_cmd;
 106
 107 CtdlIPC *ipc_for_signal_handlers;       /* KLUDGE cover your eyes */
 108
 109 /*
 110  * here is our 'clean up gracefully and exit' routine
 111  */
 112 void logoff(CtdlIPC *ipc, int code)
 113 {
 114         int lp;
 115
 116         if (editor_pid > 0) {   /* kill the editor if it's running */
 117                 kill(editor_pid, SIGHUP);
 118         }
 119
 120         /* Free the ungoto list */
 121         for (lp = 0; lp < uglistsize; lp++) {
 122                 free(uglist[lp]);
 123         }
 124
 125 /* Shut down the server connection ... but not if the logoff code is 3,
 126  * because that means we're exiting because we already lost the server.
 127  */
 128         if (code != 3) {
 129                 CtdlIPCQuit(ipc);
 130         }
 131
 132 /*
 133  * now clean up various things
 134  */
 135         screen_delete();
 136
 137         unlink(temp);
 138         unlink(temp2);
 139         nukedir(tempdir);
 140
 141         /* Violently kill off any child processes if Citadel is
 142          * the login shell.
 143          */
 144         if (getppid() == 1) {
 145                 kill(0 - getpgrp(), SIGTERM);
 146                 sleep(1);
 147                 kill(0 - getpgrp(), SIGKILL);
 148         }
 149         color(ORIGINAL_PAIR);   /* Restore the old color settings */
 150         sttybbs(SB_RESTORE);    /* return the old terminal settings */
 151         exit(code);             /* exit with the proper exit code */
 152 }
 153
 154
 155
 156 /*
 157  * signal catching function for hangups...
 158  */
 159 void dropcarr(int signum)
 160 {
 161         logoff(NULL, 3);        /* No IPC when server's already gone! */
 162 }
 163
 164
 165
 166 /*
 167  * catch SIGCONT to reset terminal modes when were are put back into the
 168  * foreground.
 169  */
 170 void catch_sigcont(int signum)
 171 {
 172         sttybbs(SB_LAST);
 173         signal(SIGCONT, catch_sigcont);
 174 }
 175
 176
 177 /* general purpose routines */
 178
 179 /* display a file */
 180 void formout(CtdlIPC *ipc, char *name)
 181 {
 182         int r;                  /* IPC return code */
 183         char buf[SIZ];
 184         char *text = NULL;
 185
 186         r = CtdlIPCSystemMessage(ipc, name, &text, buf);
 187         if (r / 100 != 1) {
 188                 scr_printf("%s\n", buf);
 189                 return;
 190         }
 191         if (text) {
 192                 fmout(screenwidth, NULL, text, NULL,
 193                       ((userflags & US_PAGINATOR) ? 1 : 0),
 194                       screenheight, 1, 1);
 195                 free(text);
 196         }
 197 }
 198
 199
 200 void userlist(CtdlIPC *ipc, char *patn)
 201 {
 202         char buf[SIZ];
 203         char fl[SIZ];
 204         struct tm *tmbuf;
 205         time_t lc;
 206         int r;                          /* IPC response code */
 207         char *listing = NULL;
 208
 209         r = CtdlIPCUserListing(ipc, &listing, buf);
 210         if (r / 100 != 1) {
 211                 pprintf("%s\n", buf);
 212                 return;
 213         }
 214
 215         pprintf("       User Name           Num  L  LastCall  Calls Posts\n");
 216         pprintf("------------------------- ----- - ---------- ----- -----\n");
 217         while (strlen(listing) > 0) {
 218                 extract_token(buf, listing, 0, '\n');
 219                 remove_token(listing, 0, '\n');
 220
 221                 if (sigcaught == 0) {
 222                     extract(fl, buf, 0);
 223                     if (pattern(fl, patn) >= 0) {
 224                         pprintf("%-25s ", fl);
 225                         pprintf("%5ld %d ", extract_long(buf, 2),
 226                                extract_int(buf, 1));
 227                         lc = extract_long(buf, 3);
 228                         tmbuf = (struct tm *) localtime(&lc);
 229                         pprintf("%02d/%02d/%04d ",
 230                                (tmbuf->tm_mon + 1),
 231                                tmbuf->tm_mday,
 232                                (tmbuf->tm_year + 1900));
 233                         pprintf("%5ld %5ld\n", extract_long(buf, 4), extract_long(buf, 5));
 234                     }
 235
 236                 }
 237         }
 238         free(listing);
 239         pprintf("\n");
 240 }
 241
 242
 243 /*
 244  * grab assorted info about the user...
 245  */
 246 void load_user_info(char *params)
 247 {
 248         extract(fullname, params, 0);
 249         axlevel = extract_int(params, 1);
 250         timescalled = extract_int(params, 2);
 251         posted = extract_int(params, 3);
 252         userflags = extract_int(params, 4);
 253         usernum = extract_long(params, 5);
 254         lastcall = extract_long(params, 6);
 255 }
 256
 257
 258 /*
 259  * Remove a room from the march list.  'floornum' is ignored unless
 260  * 'roomname' is set to _FLOOR_, in which case all rooms on the requested
 261  * floor will be removed from the march list.
 262  */
 263 void remove_march(char *roomname, int floornum)
 264 {
 265         struct march *mptr, *mptr2;
 266
 267         if (march == NULL)
 268                 return;
 269
 270         if ((!strcasecmp(march->march_name, roomname))
 271             || ((!strcasecmp(roomname, "_FLOOR_")) && (march->march_floor == floornum))) {
 272                 mptr = march->next;
 273                 free(march);
 274                 march = mptr;
 275                 return;
 276         }
 277         mptr2 = march;
 278         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 279
 280                 if ((!strcasecmp(mptr->march_name, roomname))
 281                     || ((!strcasecmp(roomname, "_FLOOR_"))
 282                         && (mptr->march_floor == floornum))) {
 283
 284                         mptr2->next = mptr->next;
 285                         free(mptr);
 286                         mptr = mptr2;
 287                 } else {
 288                         mptr2 = mptr;
 289                 }
 290         }
 291 }
 292
 293
 294 /*
 295  * Locate the room on the march list which we most want to go to.  Each room
 296  * is measured given a "weight" of preference based on various factors.
 297  */
 298 char *pop_march(int desired_floor)
 299 {
 300         static char TheRoom[ROOMNAMELEN];
 301         int TheFloor = 0;
 302         int TheOrder = 32767;
 303         int TheWeight = 0;
 304         int weight;
 305         struct march *mptr = NULL;
 306
 307         strcpy(TheRoom, "_BASEROOM_");
 308         if (march == NULL)
 309                 return (TheRoom);
 310
 311         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 312                 weight = 0;
 313                 if ((strcasecmp(mptr->march_name, "_BASEROOM_")))
 314                         weight = weight + 10000;
 315                 if (mptr->march_floor == desired_floor)
 316                         weight = weight + 5000;
 317
 318                 weight = weight + ((128 - (mptr->march_floor)) * 128);
 319                 weight = weight + (128 - (mptr->march_order));
 320
 321                 if (weight > TheWeight) {
 322                         TheWeight = weight;
 323                         strcpy(TheRoom, mptr->march_name);
 324                         TheFloor = mptr->march_floor;
 325                         TheOrder = mptr->march_order;
 326                 }
 327         }
 328         return (TheRoom);
 329 }
 330
 331
 332 /*
 333  * jump directly to a room
 334  */
 335 void dotgoto(CtdlIPC *ipc, char *towhere, int display_name, int fromungoto)
 336 {
 337         char aaa[SIZ], bbb[SIZ];
 338         static long ls = 0L;
 339         int newmailcount = 0;
 340         int partial_match, best_match;
 341         char from_floor;
 342         int ugpos = uglistsize;
 343         int r;                          /* IPC result code */
 344         struct ctdlipcroom *room = NULL;
 345
 346         /* store ungoto information */
 347         if (fromungoto == 0) {
 348                 /* sloppy slide them all down, hey it's the client, who cares. :-) */
 349                 if (uglistsize >= (UGLISTLEN-1)) {
 350                         int lp;
 351                         free (uglist[0]);
 352                         for (lp = 0; lp < (UGLISTLEN-1); lp++) {
 353                                 uglist[lp] = uglist[lp+1];
 354                                 uglistlsn[lp] = uglistlsn[lp+1];
 355                         }
 356                         ugpos--;
 357                 } else {
 358                         uglistsize++;
 359                 }
 360
 361                 uglist[ugpos] = malloc(strlen(room_name)+1);
 362                 strcpy(uglist[ugpos], room_name);
 363                 uglistlsn[ugpos] = ls;
 364         }
 365
 366         /* first try an exact match */
 367         r = CtdlIPCGotoRoom(ipc, towhere, "", &room, aaa);
 368         if (r / 10 == 54) {
 369                 newprompt("Enter room password: ", bbb, 9);
 370                 r = CtdlIPCGotoRoom(ipc, towhere, bbb, &room, aaa);
 371                 if (r / 10 == 54) {
 372                         scr_printf("Wrong password.\n");
 373                         return;
 374                 }
 375         }
 376
 377         /*
 378          * If a match is not found, try a partial match.
 379          * Partial matches anywhere in the string carry a weight of 1,
 380          * left-aligned matches carry a weight of 2.  Pick the room that
 381          * has the highest-weighted match.  Do not match on forgotten
 382          * rooms.
 383          */
 384         if (r / 100 != 2) {
 385                 struct march *march = NULL;
 386
 387                 best_match = 0;
 388                 strcpy(bbb, "");
 389
 390                 r = CtdlIPCKnownRooms(ipc, SubscribedRooms, AllFloors, &march, aaa);
 391                 if (r / 100 == 1) {
 392                         /* Run the roomlist; free the data as we go */
 393                         struct march *mp = march;       /* Current */
 394
 395                         while (mp) {
 396                                 partial_match = 0;
 397                                 if (pattern(mp->march_name, towhere) >= 0) {
 398                                         partial_match = 1;
 399                                 }
 400                                 if (!strncasecmp(mp->march_name, towhere, strlen(towhere))) {
 401                                         partial_match = 2;
 402                                 }
 403                                 if (partial_match > best_match) {
 404                                         strcpy(bbb, mp->march_name);
 405                                         best_match = partial_match;
 406                                 }
 407                                 /* Both pointers are NULL at end of list */
 408                                 march = mp->next;
 409                                 free(mp);
 410                                 mp = march;
 411                         }
 412                 }
 413
 414                 if (strlen(bbb) == 0) {
 415                         scr_printf("No room '%s'.\n", towhere);
 416                         return;
 417                 }
 418                 room = NULL;
 419                 r = CtdlIPCGotoRoom(ipc, bbb, "", &room, aaa);
 420         }
 421         if (r / 100 != 1 && r / 100 != 2) {
 422                 scr_printf("%s\n", aaa);
 423                 return;
 424         }
 425         safestrncpy(room_name, room->RRname, ROOMNAMELEN);
 426         room_flags = room->RRflags;
 427         from_floor = curr_floor;
 428         curr_floor = room->RRfloor;
 429
 430         remove_march(room_name, 0);
 431         if (!strcasecmp(towhere, "_BASEROOM_"))
 432                 remove_march(towhere, 0);
 433         if (!room->RRunread)
 434                 next_lazy_cmd = 5;      /* Don't read new if no new msgs */
 435         if ((from_floor != curr_floor) && (display_name > 0) && (floor_mode == 1)) {
 436                 if (floorlist[(int) curr_floor][0] == 0)
 437                         load_floorlist(ipc);
 438                 scr_printf("(Entering floor: %s)\n", &floorlist[(int) curr_floor][0]);
 439         }
 440         if (display_name == 1) {
 441                 color(BRIGHT_WHITE);
 442                 scr_printf("%s ", room_name);
 443                 color(DIM_WHITE);
 444                 scr_printf("- ");
 445         }
 446         if (display_name != 2) {
 447                 color(BRIGHT_YELLOW);
 448                 scr_printf("%d ", room->RRunread);
 449                 color(DIM_WHITE);
 450                 scr_printf("new of ");
 451                 color(BRIGHT_YELLOW);
 452                 scr_printf("%d ", room->RRtotal);
 453                 color(DIM_WHITE);
 454                 scr_printf("messages.\n");
 455         }
 456         highest_msg_read = room->RRlastread;
 457         maxmsgnum = room->RRhighest;
 458         is_mail = room->RRismailbox;
 459         is_room_aide = room->RRaide;
 460         ls = room->RRlastread;
 461
 462         /* read info file if necessary */
 463         if (room->RRinfoupdated > 0)
 464                 readinfo(ipc);
 465
 466         /* check for newly arrived mail if we can */
 467         newmailcount = room->RRnewmail;
 468         if (newmailcount > 0) {
 469                 color(BRIGHT_RED);
 470                 if (newmailcount == 1) {
 471                         scr_printf("*** A new mail message has arrived.\n");
 472                 }
 473                 else {
 474                         scr_printf("*** %d new mail messages have arrived.\n",
 475                                         newmailcount);
 476                 }
 477                 color(DIM_WHITE);
 478                 if (strlen(rc_gotmail_cmd) > 0) {
 479                         system(rc_gotmail_cmd);
 480                 }
 481         }
 482         status_line(ipc->ServInfo.humannode, ipc->ServInfo.bbs_city,
 483                         room_name, secure, newmailcount);
 484 }
 485
 486 /* Goto next room having unread messages.
 487  * We want to skip over rooms that the user has already been to, and take the
 488  * user back to the lobby when done.  The room we end up in is placed in
 489  * newroom - which is set to 0 (the lobby) initially.
 490  */
 491 void gotonext(CtdlIPC *ipc)
 492 {
 493         char buf[SIZ];
 494         struct march *mptr, *mptr2;
 495         char next_room[ROOMNAMELEN];
 496         int r;                          /* IPC response code */
 497
 498         /* Check to see if the march-mode list is already allocated.
 499          * If it is, pop the first room off the list and go there.
 500          */
 501         if (march == NULL) {
 502                 r = CtdlIPCKnownRooms(ipc, SubscribedRoomsWithNewMessages,
 503                                         AllFloors, &march, buf);
 504
 505 /* add _BASEROOM_ to the end of the march list, so the user will end up
 506  * in the system base room (usually the Lobby>) at the end of the loop
 507  */
 508                 mptr = (struct march *) malloc(sizeof(struct march));
 509                 mptr->next = NULL;
 510                 strcpy(mptr->march_name, "_BASEROOM_");
 511                 if (march == NULL) {
 512                         march = mptr;
 513                 } else {
 514                         mptr2 = march;
 515                         while (mptr2->next != NULL)
 516                                 mptr2 = mptr2->next;
 517                         mptr2->next = mptr;
 518                 }
 519 /*
 520  * ...and remove the room we're currently in, so a <G>oto doesn't make us
 521  * walk around in circles
 522  */
 523                 remove_march(room_name, 0);
 524         }
 525         if (march != NULL) {
 526                 strcpy(next_room, pop_march(curr_floor));
 527         } else {
 528                 strcpy(next_room, "_BASEROOM_");
 529         }
 530         remove_march(next_room, 0);
 531         dotgoto(ipc, next_room, 1, 0);
 532 }
 533
 534 /*
 535  * forget all rooms on a given floor
 536  */
 537 void forget_all_rooms_on(CtdlIPC *ipc, int ffloor)
 538 {
 539         char buf[SIZ];
 540         struct march *flist, *fptr;
 541         struct ctdlipcroom *room;       /* Ignored */
 542         int r;                          /* IPC response code */
 543
 544         scr_printf("Forgetting all rooms on %s...\r", &floorlist[ffloor][0]);
 545         scr_flush();
 546         remove_march("_FLOOR_", ffloor);
 547         r = CtdlIPCKnownRooms(ipc, AllAccessibleRooms, ffloor, &flist, buf);
 548         if (r / 100 != 1) {
 549                 scr_printf("%-72s\n", buf);
 550                 return;
 551         }
 552         while (flist) {
 553                 r = CtdlIPCGotoRoom(ipc, flist->march_name, "", &room, buf);
 554                 if (r / 100 == 2) {
 555                         r = CtdlIPCForgetRoom(ipc, buf);
 556                 }
 557                 fptr = flist;
 558                 flist = flist->next;
 559                 free(fptr);
 560         }
 561         scr_printf("%-72s\r", "");
 562 }
 563
 564
 565 /*
 566  * routine called by gotofloor() to move to a new room on a new floor
 567  */
 568 void gf_toroom(CtdlIPC *ipc, char *towhere, int mode)
 569 {
 570         int floor_being_left;
 571
 572         floor_being_left = curr_floor;
 573
 574         if (mode == GF_GOTO) {  /* <;G>oto mode */
 575                 updatels(ipc);
 576                 dotgoto(ipc, towhere, 1, 0);
 577         }
 578         if (mode == GF_SKIP) {  /* <;S>kip mode */
 579                 dotgoto(ipc, towhere, 1, 0);
 580                 remove_march("_FLOOR_", floor_being_left);
 581         }
 582         if (mode == GF_ZAP) {   /* <;Z>ap mode */
 583                 dotgoto(ipc, towhere, 1, 0);
 584                 remove_march("_FLOOR_", floor_being_left);
 585                 forget_all_rooms_on(ipc, floor_being_left);
 586         }
 587 }
 588
 589
 590 /*
 591  * go to a new floor
 592  */
 593 void gotofloor(CtdlIPC *ipc, char *towhere, int mode)
 594 {
 595         int a, tofloor;
 596         int r;          /* IPC response code */
 597         struct march *mptr;
 598         char buf[SIZ], targ[SIZ];
 599
 600         if (floorlist[0][0] == 0)
 601                 load_floorlist(ipc);
 602         tofloor = (-1);
 603         for (a = 0; a < 128; ++a)
 604                 if (!strcasecmp(&floorlist[a][0], towhere))
 605                         tofloor = a;
 606
 607         if (tofloor < 0) {
 608                 for (a = 0; a < 128; ++a) {
 609                         if (!strncasecmp(&floorlist[a][0], towhere, strlen(towhere))) {
 610                                 tofloor = a;
 611                         }
 612                 }
 613         }
 614         if (tofloor < 0) {
 615                 for (a = 0; a < 128; ++a)
 616                         if (pattern(towhere, &floorlist[a][0]) > 0)
 617                                 tofloor = a;
 618         }
 619         if (tofloor < 0) {
 620                 scr_printf("No floor '%s'.\n", towhere);
 621                 return;
 622         }
 623         for (mptr = march; mptr != NULL; mptr = mptr->next) {
 624                 if ((mptr->march_floor) == tofloor)
 625                         gf_toroom(ipc, mptr->march_name, mode);
 626                 return;
 627         }
 628
 629         strcpy(targ, "");
 630         mptr = NULL;
 631         r = CtdlIPCKnownRooms(ipc, AllAccessibleRooms, tofloor, &mptr, buf);
 632         if (r / 100 == 1) {
 633                 struct march *tmp = mptr;
 634
 635                 /* TODO: room order is being ignored? */
 636                 if (mptr)
 637                         strncpy(targ, mptr->march_name, ROOMNAMELEN);
 638                 while (mptr) {
 639                         tmp = mptr->next;
 640                         free(mptr);
 641                         mptr = tmp;
 642                 }
 643         }
 644         if (strlen(targ) > 0) {
 645                 gf_toroom(ipc, targ, mode);
 646         } else {
 647                 scr_printf("There are no rooms on '%s'.\n", &floorlist[tofloor][0]);
 648         }
 649 }
 650
 651
 652 /*
 653  * forget all rooms on current floor
 654  */
 655 void forget_this_floor(CtdlIPC *ipc)
 656 {
 657
 658         if (curr_floor == 0) {
 659                 scr_printf("Can't forget this floor.\n");
 660                 return;
 661         }
 662         if (floorlist[0][0] == 0)
 663                 load_floorlist(ipc);
 664         scr_printf("Are you sure you want to forget all rooms on %s? ",
 665                &floorlist[(int) curr_floor][0]);
 666         if (yesno() == 0)
 667                 return;
 668
 669         gf_toroom(ipc, "_BASEROOM_", GF_ZAP);
 670 }
 671
 672
 673 /*
 674  * Figure out the physical screen dimensions, if we can
 675  * WARNING:  this is now called from a signal handler!
 676  */
 677 void check_screen_dims(void)
 678 {
 679 #ifdef TIOCGWINSZ
 680         struct {
 681                 unsigned short height;  /* rows */
 682                 unsigned short width;   /* columns */
 683                 unsigned short xpixels;
 684                 unsigned short ypixels;         /* pixels */
 685         } xwinsz;
 686
 687         if (have_xterm) {       /* dynamically size screen if on an xterm */
 688                 if (ioctl(0, TIOCGWINSZ, &xwinsz) == 0) {
 689                         if (xwinsz.height)
 690                                 screenheight = is_curses_enabled() ? (int)xwinsz.height - 1 : (int) xwinsz.height;
 691                         if (xwinsz.width)
 692                                 screenwidth = (int) xwinsz.width;
 693                 }
 694         }
 695 #endif
 696 }
 697
 698
 699 /*
 700  * set floor mode depending on client, server, and user settings
 701  */
 702 void set_floor_mode(CtdlIPC* ipc)
 703 {
 704         if (ipc->ServInfo.ok_floors == 0) {
 705                 floor_mode = 0; /* Don't use floors if the server */
 706         }
 707         /* doesn't support them!          */
 708         else {
 709                 if (rc_floor_mode == RC_NO) {   /* never use floors */
 710                         floor_mode = 0;
 711                 }
 712                 if (rc_floor_mode == RC_YES) {  /* always use floors */
 713                         floor_mode = 1;
 714                 }
 715                 if (rc_floor_mode == RC_DEFAULT) {      /* user choice */
 716                         floor_mode = ((userflags & US_FLOORS) ? 1 : 0);
 717                 }
 718         }
 719 }
 720
 721 /*
 722  * Set or change the user's password
 723  */
 724 int set_password(CtdlIPC *ipc)
 725 {
 726         char pass1[20];
 727         char pass2[20];
 728         char buf[SIZ];
 729
 730         if (strlen(rc_password) > 0) {
 731                 strcpy(pass1, rc_password);
 732                 strcpy(pass2, rc_password);
 733         } else {
 734                 IFNEXPERT formout(ipc, "changepw");
 735                 newprompt("Enter a new password: ", pass1, -19);
 736                 newprompt("Enter it again to confirm: ", pass2, -19);
 737         }
 738         strproc(pass1);
 739         strproc(pass2);
 740         if (!strcasecmp(pass1, pass2)) {
 741                 CtdlIPCChangePassword(ipc, pass1, buf);
 742                 scr_printf("%s\n", buf);
 743                 offer_to_remember_password(ipc, hostbuf, portbuf, fullname, pass1);
 744                 return (0);
 745         } else {
 746                 scr_printf("*** They don't match... try again.\n");
 747                 return (1);
 748         }
 749 }
 750
 751
 752
 753 /*
 754  * get info about the server we've connected to
 755  */
 756 void get_serv_info(CtdlIPC *ipc, char *supplied_hostname)
 757 {
 758         char buf[SIZ];
 759
 760         CtdlIPCServerInfo(ipc, buf);
 761
 762         /* be nice and identify ourself to the server */
 763         CtdlIPCIdentifySoftware(ipc, SERVER_TYPE, 0, REV_LEVEL,
 764                  (ipc->isLocal ? "local" : CITADEL),
 765                  (supplied_hostname) ? supplied_hostname :
 766                  /* Look up the , in the bible if you're confused */
 767                  (locate_host(ipc, buf), buf), buf);
 768
 769         /* Tell the server what our preferred content formats are */
 770         if ((CtdlIPCSpecifyPreferredFormats(ipc, buf, "text/html|text/plain") / 100 )== 2) {
 771                 can_do_msg4 = 1;
 772         }
 773 }
 774
 775
 776
 777 /*
 778  * Record compare function for SortOnlineUsers()
 779  */
 780 int idlecmp(const void *rec1, const void *rec2) {
 781         time_t i1, i2;
 782
 783         i1 = extract_long(rec1, 5);
 784         i2 = extract_long(rec2, 5);
 785
 786         if (i1 < i2) return(1);
 787         if (i1 > i2) return(-1);
 788         return(0);
 789 }
 790
 791
 792 /*
 793  * Sort the list of online users by idle time.
 794  * This function frees the supplied buffer, and returns a new one
 795  * to the caller.  The caller is responsible for freeing the returned buffer.
 796  */
 797 char *SortOnlineUsers(char *listing) {
 798         int rows;
 799         char *sortbuf;
 800         char *retbuf;
 801         char buf[SIZ];
 802         int i;
 803
 804         rows = num_tokens(listing, '\n');
 805         sortbuf = malloc(rows * SIZ);
 806         if (sortbuf == NULL) return(listing);
 807         retbuf = malloc(rows * SIZ);
 808         if (retbuf == NULL) {
 809                 free(sortbuf);
 810                 return(listing);
 811         }
 812
 813         /* Copy the list into a fixed-record-size array for sorting */
 814         for (i=0; i<rows; ++i) {
 815                 memset(buf, 0, SIZ);
 816                 extract_token(buf, listing, i, '\n');
 817                 memcpy(&sortbuf[i*SIZ], buf, SIZ);
 818         }
 819
 820         /* Do the sort */
 821         qsort(sortbuf, rows, SIZ, idlecmp);
 822
 823         /* Copy back to a \n delimited list */
 824         strcpy(retbuf, "");
 825         for (i=0; i<rows; ++i) {
 826                 strcat(retbuf, &sortbuf[i*SIZ]);
 827                 if (i<(rows-1)) strcat(retbuf, "\n");
 828         }
 829         return(retbuf);
 830 }
 831
 832
 833
 834 /*
 835  * Display list of users currently logged on to the server
 836  */
 837 void who_is_online(CtdlIPC *ipc, int longlist)
 838 {
 839         char buf[SIZ], username[SIZ], roomname[SIZ], fromhost[SIZ];
 840         char flags[SIZ];
 841         char actual_user[SIZ], actual_room[SIZ], actual_host[SIZ];
 842         char clientsoft[SIZ];
 843         time_t timenow = 0;
 844         time_t idletime, idlehours, idlemins, idlesecs;
 845         int last_session = (-1);
 846         int skipidle = 0;
 847         char *listing = NULL;
 848         int r;                          /* IPC response code */
 849
 850         if (longlist == 2) {
 851                 longlist = 0;
 852                 skipidle = 1;
 853         }
 854
 855         if (!longlist) {
 856                 color(BRIGHT_WHITE);
 857                 pprintf("           User Name               Room           Idle        From host\n");
 858                 color(DIM_WHITE);
 859                 pprintf("   ------------------------- -------------------- ---- ------------------------\n");
 860         }
 861         r = CtdlIPCOnlineUsers(ipc, &listing, &timenow, buf);
 862         listing = SortOnlineUsers(listing);
 863         if (r / 100 == 1) {
 864                 while (strlen(listing) > 0) {
 865                         int isidle = 0;
 866
 867                         /* Get another line */
 868                         extract_token(buf, listing, 0, '\n');
 869                         remove_token(listing, 0, '\n');
 870
 871                         extract(username, buf, 1);
 872                         extract(roomname, buf, 2);
 873                         extract(fromhost, buf, 3);
 874                         extract(clientsoft, buf, 4);
 875                         extract(flags, buf, 7);
 876
 877                         idletime = timenow - extract_long(buf, 5);
 878                         idlehours = idletime / 3600;
 879                         idlemins = (idletime - (idlehours * 3600)) / 60;
 880                         idlesecs = (idletime - (idlehours * 3600) - (idlemins * 60));
 881
 882                         if (idletime > rc_idle_threshold) {
 883                                 /*
 884                                 while (strlen(roomname) < 20) {
 885                                         strcat(roomname, " ");
 886                                 }
 887                                 strcpy(&roomname[14], "[idle]");
 888                                 */
 889                                 if (skipidle)
 890                                         isidle = 1;
 891                         }
 892
 893                         if (longlist) {
 894                                 extract(actual_user, buf, 8);
 895                                 extract(actual_room, buf, 9);
 896                                 extract(actual_host, buf, 10);
 897
 898                                 pprintf("  Flags: %s\n", flags);
 899                                 pprintf("Session: %d\n", extract_int(buf, 0));
 900                                 pprintf("   Name: %s\n", username);
 901                                 pprintf("In room: %s\n", roomname);
 902                                 pprintf("   Host: %s\n", fromhost);
 903                                 pprintf(" Client: %s\n", clientsoft);
 904                                 pprintf("   Idle: %ld:%02ld:%02ld\n",
 905                                         (long) idlehours,
 906                                         (long) idlemins,
 907                                         (long) idlesecs);
 908
 909                                 if ( (strlen(actual_user)+strlen(actual_room)+strlen(actual_host)) > 0) {
 910                                         pprintf("(really ");
 911                                         if (strlen(actual_user)>0) pprintf("<%s> ", actual_user);
 912                                         if (strlen(actual_room)>0) pprintf("in <%s> ", actual_room);
 913                                         if (strlen(actual_host)>0) pprintf("from <%s> ", actual_host);
 914                                         pprintf(")\n");
 915                                 }
 916                                 pprintf("\n");
 917
 918                         } else {
 919                     if (isidle == 0) {
 920                                 if (extract_int(buf, 0) == last_session) {
 921                                         pprintf("        ");
 922                                 } else {
 923                                         color(BRIGHT_MAGENTA);
 924                                         pprintf("%-3s", flags);
 925                                 }
 926                                 last_session = extract_int(buf, 0);
 927                                 color(BRIGHT_CYAN);
 928                                 pprintf("%-25s ", username);
 929                                 color(BRIGHT_MAGENTA);
 930                                 roomname[20] = 0;
 931                                 pprintf("%-20s ", roomname);
 932                                 if (idletime > rc_idle_threshold) {
 933                                         /* over 1000d, must be gone fishing */
 934                                         if (idlehours > 23999) {
 935                                                 pprintf("fish");
 936                                         /* over 10 days */
 937                                         } else if (idlehours > 239) {
 938                                                 pprintf("%3ldd",
 939                                                         idlehours / 24);
 940                                         /* over 10 hours */
 941                                         } else if (idlehours > 9) {
 942                                                 pprintf("%1ldd%02ld",
 943                                                         idlehours / 24,
 944                                                         idlehours % 24);
 945                                         /* less than 10 hours */
 946                                         } else {
 947                                                 pprintf("%1ld:%02ld",
 948                                                         idlehours, idlemins);
 949                                         }
 950                                 }
 951                                 else {
 952                                         pprintf("    ");
 953                                 }
 954                                 pprintf(" ");
 955                                 color(BRIGHT_CYAN);
 956                                 fromhost[24] = '\0';
 957                                 pprintf("%-24s\n", fromhost);
 958                                 color(DIM_WHITE);
 959                         }
 960                         }
 961                 }
 962         }
 963         free(listing);
 964 }
 965
 966 void enternew(CtdlIPC *ipc, char *desc, char *buf, int maxlen)
 967 {
 968         char bbb[128];
 969         snprintf(bbb, sizeof bbb, "Enter in your new %s: ", desc);
 970         newprompt(bbb, buf, maxlen);
 971 }
 972
 973
 974
 975 int shift(int argc, char **argv, int start, int count) {
 976         int i;
 977
 978         for (i=start; i<(argc-count); ++i) {
 979                 argv[i] = argv[i+count];
 980         }
 981         argc = argc - count;
 982         return argc;
 983 }
 984
 985 static void statusHook(char *s) {
 986         sln_printf(s);
 987         sln_flush();
 988 }
 989
 990 /*
 991  * main
 992  */
 993 int main(int argc, char **argv)
 994 {
 995         int a, b, mcmd;
 996         char aaa[100], bbb[100];/* general purpose variables */
 997         char argbuf[32];        /* command line buf */
 998         char nonce[NONCE_SIZE];
 999         char *telnet_client_host = NULL;
1000         char *sptr, *sptr2;     /* USed to extract the nonce */
1001         char hexstring[MD5_HEXSTRING_SIZE];
1002         int stored_password = 0;
1003         char password[SIZ];
1004         struct ctdlipcmisc chek;
1005         struct ctdluser *myself = NULL;
1006         CtdlIPC* ipc;                   /* Our server connection */
1007         int r;                          /* IPC result code */
1008
1009         setIPCDeathHook(screen_delete);
1010         setIPCErrorPrintf(err_printf);
1011         setCryptoStatusHook(statusHook);
1012
1013         /* Permissions sanity check - don't run citadel setuid/setgid */
1014         if (getuid() != geteuid()) {
1015                 err_printf("Please do not run citadel setuid!\n");
1016                 logoff(NULL, 3);
1017         } else if (getgid() != getegid()) {
1018                 err_printf("Please do not run citadel setgid!\n");
1019                 logoff(NULL, 3);
1020         }
1021
1022         sttybbs(SB_SAVE);       /* Store the old terminal parameters */
1023         load_command_set();     /* parse the citadel.rc file */
1024         sttybbs(SB_NO_INTR);    /* Install the new ones */
1025         signal(SIGHUP, dropcarr);       /* Cleanup gracefully if carrier is dropped */
1026         signal(SIGPIPE, dropcarr);      /* Cleanup gracefully if local conn. dropped */
1027         signal(SIGTERM, dropcarr);      /* Cleanup gracefully if terminated */
1028         signal(SIGCONT, catch_sigcont); /* Catch SIGCONT so we can reset terminal */
1029 #ifdef SIGWINCH
1030         signal(SIGWINCH, scr_winch);    /* Window resize signal */
1031 #endif
1032
1033 #ifdef HAVE_OPENSSL
1034         arg_encrypt = RC_DEFAULT;
1035 #endif
1036 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1037         arg_screen = RC_DEFAULT;
1038 #endif
1039
1040         /*
1041          * Handle command line options as if we were called like /bin/login
1042          * (i.e. from in.telnetd)
1043          */
1044         for (a=0; a<argc; ++a) {
1045                 if ((argc > a+1) && (!strcmp(argv[a], "-h")) ) {
1046                         telnet_client_host = argv[a+1];
1047                         argc = shift(argc, argv, a, 2);
1048                 }
1049                 if (!strcmp(argv[a], "-x")) {
1050 #ifdef HAVE_OPENSSL
1051                         arg_encrypt = RC_NO;
1052 #endif
1053                         argc = shift(argc, argv, a, 1);
1054                 }
1055                 if (!strcmp(argv[a], "-X")) {
1056 #ifdef HAVE_OPENSSL
1057                         arg_encrypt = RC_YES;
1058                         argc = shift(argc, argv, a, 1);
1059 #else
1060                         fprintf(stderr, "Not compiled with encryption support");
1061                         return 1;
1062 #endif
1063                 }
1064                 if (!strcmp(argv[a], "-s")) {
1065 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1066                         arg_screen = RC_NO;
1067 #endif
1068                         argc = shift(argc, argv, a, 1);
1069                 }
1070                 if (!strcmp(argv[a], "-S")) {
1071 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1072                         arg_screen = RC_YES;
1073 #endif
1074                         argc = shift(argc, argv, a, 1);
1075                 }
1076                 if (!strcmp(argv[a], "-p")) {
1077                         struct stat st;
1078
1079                         if (chdir(BBSDIR) < 0) {
1080                                 perror("can't change to " BBSDIR);
1081                                 logoff(NULL, 3);
1082                         }
1083
1084                         /*
1085                          * Drop privileges if necessary. We stat
1086                          * citadel.config to get the uid/gid since it's
1087                          * guaranteed to have the uid/gid we want.
1088                          */
1089                         if (!getuid() || !getgid()) {
1090                                 if (stat(BBSDIR "/citadel.config", &st) < 0) {
1091                                         perror("couldn't stat citadel.config");
1092                                         logoff(NULL, 3);
1093                                 }
1094                                 if (!getgid() && (setgid(st.st_gid) < 0)) {
1095                                         perror("couldn't change gid");
1096                                         logoff(NULL, 3);
1097                                 }
1098                                 if (!getuid() && (setuid(st.st_uid) < 0)) {
1099                                         perror("couldn't change uid");
1100                                         logoff(NULL, 3);
1101                                 }
1102                                 /*
1103                                   scr_printf("Privileges changed to uid %d gid %d\n",
1104                                   getuid(), getgid());
1105                                 */
1106                         }
1107                         argc = shift(argc, argv, a, 1);
1108                 }
1109         }
1110
1111         screen_new();
1112
1113 #ifdef __CYGWIN__
1114         newprompt("Connect to (return for local server): ", hostbuf, 64);
1115 #endif
1116
1117         sln_printf("Attaching to server... \r");
1118         sln_flush();
1119         ipc = CtdlIPC_new(argc, argv, hostbuf, portbuf);
1120         if (!ipc) {
1121                 screen_delete();
1122                 error_printf("Can't connect: %s\n", strerror(errno));
1123                 logoff(NULL, 3);
1124         }
1125 #if defined(HAVE_CURSES_H) && !defined(DISABLE_CURSES)
1126         CtdlIPC_SetNetworkStatusCallback(ipc, wait_indicator);
1127 #endif
1128         ipc_for_signal_handlers = ipc;  /* KLUDGE cover your eyes */
1129
1130         CtdlIPC_getline(ipc, aaa);
1131         if (aaa[0] != '2') {
1132                 scr_printf("%s\n", &aaa[4]);
1133                 logoff(ipc, atoi(aaa));
1134         }
1135
1136         /* If there is a [nonce] at the end, put the nonce in <nonce>, else nonce
1137          * is zeroized.
1138          */
1139
1140         if ((sptr = strchr(aaa, '<')) == NULL)
1141                 {
1142                         nonce[0] = '\0';
1143                 }
1144         else
1145                 {
1146                         if ((sptr2 = strchr(sptr, '>')) == NULL)
1147                                 {
1148                                         nonce[0] = '\0';
1149                                 }
1150                         else
1151                                 {
1152                                         sptr2++;
1153                                         *sptr2 = '\0';
1154                                         strncpy(nonce, sptr, NONCE_SIZE);
1155                                 }
1156                 }
1157
1158 #ifdef HAVE_OPENSSL
1159         /* Evaluate encryption preferences */
1160         if (arg_encrypt != RC_NO && rc_encrypt != RC_NO) {
1161                 if (!ipc->isLocal || arg_encrypt == RC_YES || rc_encrypt == RC_YES) {
1162                         secure = (CtdlIPCStartEncryption(ipc, aaa) / 100 == 2) ? 1 : 0;
1163                         if (!secure)
1164                                 error_printf("Can't encrypt: %s\n", aaa);
1165                 }
1166         }
1167 #endif
1168
1169         get_serv_info(ipc, telnet_client_host);
1170         scr_printf("%-24s\n%s\n%s\n", ipc->ServInfo.software, ipc->ServInfo.humannode,
1171                    ipc->ServInfo.bbs_city);
1172         scr_flush();
1173
1174         status_line(ipc->ServInfo.humannode, ipc->ServInfo.bbs_city, NULL,
1175                     secure, -1);
1176
1177         screenwidth = 80;       /* default screen dimensions */
1178         screenheight = 24;
1179
1180         scr_printf(" pause    next    stop\n");
1181         scr_printf(" ctrl-s  ctrl-o  ctrl-c\n\n");
1182         formout(ipc, "hello");  /* print the opening greeting */
1183         scr_printf("\n");
1184
1185  GSTA:  /* See if we have a username and password on disk */
1186         if (rc_remember_passwords) {
1187                 get_stored_password(hostbuf, portbuf, fullname, password);
1188                 if (strlen(fullname) > 0) {
1189                         r = CtdlIPCTryLogin(ipc, fullname, aaa);
1190                         if (r / 100 == 3) {
1191                                 if (*nonce) {
1192                                         r = CtdlIPCTryApopPassword(ipc, make_apop_string(password, nonce, hexstring, sizeof hexstring), aaa);
1193                                 } else {
1194                                         r = CtdlIPCTryPassword(ipc, password, aaa);
1195                                 }
1196                         }
1197
1198                         if (r / 100 == 2) {
1199                                 load_user_info(aaa);
1200                                 stored_password = 1;
1201                                 goto PWOK;
1202                         } else {
1203                                 set_stored_password(hostbuf, portbuf, "", "");
1204                         }
1205                 }
1206         }
1207
1208         termn8 = 0;
1209         newnow = 0;
1210         do {
1211                 if (strlen(rc_username) > 0) {
1212                         strcpy(fullname, rc_username);
1213                 } else {
1214                         newprompt("Enter your name: ", fullname, 29);
1215                 }
1216                 strproc(fullname);
1217                 if (!strcasecmp(fullname, "new")) {     /* just in case */
1218                         scr_printf("Please enter the name you wish to log in with.\n");
1219                 }
1220         } while (
1221                  (!strcasecmp(fullname, "bbs"))
1222                  || (!strcasecmp(fullname, "new"))
1223                  || (strlen(fullname) == 0));
1224
1225         if (!strcasecmp(fullname, "off")) {
1226                 mcmd = 29;
1227                 goto TERMN8;
1228         }
1229         /* sign on to the server */
1230         r = CtdlIPCTryLogin(ipc, fullname, aaa);
1231         if (r / 100 != 3)
1232                 goto NEWUSR;
1233
1234         /* password authentication */
1235         if (strlen(rc_password) > 0) {
1236                 strcpy(password, rc_password);
1237         } else {
1238                 newprompt("\rPlease enter your password: ", password, -19);
1239         }
1240         strproc(password);
1241
1242         if (*nonce) {
1243                 r = CtdlIPCTryApopPassword(ipc, make_apop_string(password, nonce, hexstring, sizeof hexstring), aaa);
1244         } else {
1245                 r = CtdlIPCTryPassword(ipc, password, aaa);
1246         }
1247
1248         if (r / 100 == 2) {
1249                 load_user_info(aaa);
1250                 offer_to_remember_password(ipc, hostbuf, portbuf,
1251                                            fullname, password);
1252                 goto PWOK;
1253         }
1254         scr_printf("<< wrong password >>\n");
1255         if (strlen(rc_password) > 0)
1256                 logoff(ipc, 2);
1257         goto GSTA;
1258
1259 NEWUSR: if (strlen(rc_password) == 0) {
1260                 scr_printf("'%s' not found.\n"
1261                         "Do you want to create a new account with this name? ",
1262                         fullname);
1263                 if (yesno() == 0)
1264                         goto GSTA;
1265         }
1266
1267         r = CtdlIPCCreateUser(ipc, fullname, 1, aaa);
1268         if (r / 100 != 2) {
1269                 scr_printf("%s\n", aaa);
1270                 goto GSTA;
1271         }
1272         load_user_info(aaa);
1273
1274         while (set_password(ipc) != 0);
1275         newnow = 1;
1276
1277         enter_config(ipc, 1);
1278
1279  PWOK:
1280         /* Switch color support on or off if we're in user mode */
1281         if (rc_ansi_color == 3) {
1282                 if (userflags & US_COLOR)
1283                         enable_color = 1;
1284                 else
1285                         enable_color = 0;
1286         }
1287
1288         color(BRIGHT_WHITE);
1289         scr_printf("\n%s\nAccess level: %d (%s)\n"
1290                    "User #%ld / Login #%d",
1291                    fullname, axlevel, axdefs[(int) axlevel],
1292                    usernum, timescalled);
1293         if (lastcall > 0L) {
1294                 scr_printf(" / Last login: %s",
1295                            asctime(localtime(&lastcall)));
1296         }
1297         scr_printf("\n");
1298
1299         r = CtdlIPCMiscCheck(ipc, &chek, aaa);
1300         if (r / 100 == 2) {
1301                 b = chek.newmail;
1302                 if (b > 0) {
1303                         color(BRIGHT_RED);
1304                         if (b == 1)
1305                                 scr_printf("*** You have a new private message in Mail>\n");
1306                         if (b > 1)
1307                                 scr_printf("*** You have %d new private messages in Mail>\n", b);
1308                         color(DIM_WHITE);
1309                         if (strlen(rc_gotmail_cmd) > 0) {
1310                                 system(rc_gotmail_cmd);
1311                         }
1312                 }
1313                 if ((axlevel >= 6) && (chek.needvalid > 0)) {
1314                         scr_printf("*** Users need validation\n");
1315                 }
1316                 if (chek.needregis > 0) {
1317                         scr_printf("*** Please register.\n");
1318                         formout(ipc, "register");
1319                         entregis(ipc);
1320                 }
1321         }
1322         /* Make up some temporary filenames for use in various parts of the
1323          * program.  Don't mess with these once they've been set, because we
1324          * will be unlinking them later on in the program and we don't
1325          * want to delete something that we didn't create. */
1326         snprintf(temp, sizeof temp, tmpnam(NULL));
1327         snprintf(temp2, sizeof temp2, tmpnam(NULL));
1328         snprintf(tempdir, sizeof tempdir, tmpnam(NULL));
1329
1330         /* Get screen dimensions.  First we go to a default of 80x24.  Then
1331          * we try to get the user's actual screen dimensions off the server.
1332          * However, if we're running on an xterm, all this stuff is
1333          * irrelevant because we're going to dynamically size the screen
1334          * during the session.
1335          */
1336         screenwidth = 80;
1337         screenheight = 24;
1338         r = CtdlIPCGetConfig(ipc, &myself, aaa);
1339         if (r == 2) {
1340                 screenwidth = myself->USscreenwidth;
1341                 screenheight = myself->USscreenheight;
1342         }
1343         if (getenv("TERM") != NULL)
1344                 if (!strcmp(getenv("TERM"), "xterm")) {
1345                         have_xterm = 1;
1346                 }
1347 #ifdef TIOCGWINSZ
1348         check_screen_dims();
1349 #endif
1350
1351         set_floor_mode(ipc);
1352
1353         /* Enter the lobby */
1354         dotgoto(ipc, "_BASEROOM_", 1, 0);
1355
1356         /* Main loop for the system... user is logged in. */
1357         uglistsize = 0;
1358
1359         if (newnow == 1)
1360                 readmsgs(ipc, LastMessages, ReadForward, 5);
1361         else
1362                 readmsgs(ipc, NewMessages, ReadForward, 0);
1363
1364         /* MAIN COMMAND LOOP */
1365         do {
1366                 mcmd = getcmd(ipc, argbuf);     /* Get keyboard command */
1367
1368 #ifdef TIOCGWINSZ
1369                 check_screen_dims();            /* if xterm, get screen size */
1370 #endif
1371
1372                 if (termn8 == 0)
1373                         switch (mcmd) {
1374                         case 1:
1375                                 formout(ipc, "help");
1376                                 break;
1377                         case 4:
1378                                 entmsg(ipc, 0, 0);
1379                                 break;
1380                         case 36:
1381                                 entmsg(ipc, 0, 1);
1382                                 break;
1383                         case 46:
1384                                 entmsg(ipc, 0, 2);
1385                                 break;
1386                         case 78:
1387                                 newprompt("What do you want your username to be? ", aaa, 32);
1388                                 snprintf(bbb, sizeof bbb, "ENT0 2|0|0|0|%s", aaa);
1389                                 CtdlIPC_putline(ipc, bbb);
1390                                 CtdlIPC_getline(ipc, aaa);
1391                                 if (strncmp("200", aaa, 3))
1392                                         scr_printf("\n%s\n", aaa);
1393                                 else
1394                                         entmsg(ipc, 0, 0);
1395                                 break;
1396                         case 5:                         /* <G>oto */
1397                                 updatels(ipc);
1398                                 gotonext(ipc);
1399                                 break;
1400                         case 47:                        /* <A>bandon */
1401                                 if (!rc_alt_semantics) {
1402                                         updatelsa(ipc);
1403                                 }
1404                                 gotonext(ipc);
1405                                 break;
1406                         case 90:                        /* <.A>bandon */
1407                                 if (!rc_alt_semantics)
1408                                         updatelsa(ipc);
1409                                 dotgoto(ipc, argbuf, 0, 0);
1410                                 break;
1411                         case 58:                        /* <M>ail */
1412                                 updatelsa(ipc);
1413                                 dotgoto(ipc, "_MAIL_", 1, 0);
1414                                 break;
1415                         case 20:
1416                                 if (strlen(argbuf) > 0) {
1417                                         updatels(ipc);
1418                                         dotgoto(ipc, argbuf, 0, 0);
1419                                 }
1420                                 break;
1421                         case 52:
1422                                 if (strlen(argbuf) > 0) {
1423                                         if (rc_alt_semantics) {
1424                                                 updatelsa(ipc);
1425                                         }
1426                                         dotgoto(ipc, argbuf, 0, 0);
1427                                 }
1428                                 break;
1429                         case 95: /* what exactly is the numbering scheme supposed to be anyway? */
1430                                 dotungoto(ipc, argbuf);
1431                                 break;
1432                         case 10:
1433                                 readmsgs(ipc, AllMessages, ReadForward, 0);
1434                                 break;
1435                         case 9:
1436                                 readmsgs(ipc, LastMessages, ReadForward, 5);
1437                                 break;
1438                         case 13:
1439                                 readmsgs(ipc, NewMessages, ReadForward, 0);
1440                                 break;
1441                         case 11:
1442                                 readmsgs(ipc, AllMessages, ReadReverse, 0);
1443                                 break;
1444                         case 12:
1445                                 readmsgs(ipc, OldMessages, ReadReverse, 0);
1446                                 break;
1447                         case 71:
1448                                 readmsgs(ipc, LastMessages, ReadForward,
1449                                                 atoi(argbuf));
1450                                 break;
1451                         case 7:
1452                                 forget(ipc);
1453                                 break;
1454                         case 18:
1455                                 subshell();
1456                                 break;
1457                         case 38:
1458                                 updatels(ipc);
1459                                 entroom(ipc);
1460                                 break;
1461                         case 22:
1462                                 killroom(ipc);
1463                                 break;
1464                         case 32:
1465                                 userlist(ipc, argbuf);
1466                                 break;
1467                         case 27:
1468                                 invite(ipc);
1469                                 break;
1470                         case 28:
1471                                 kickout(ipc);
1472                                 break;
1473                         case 23:
1474                                 editthisroom(ipc);
1475                                 break;
1476                         case 14:
1477                                 roomdir(ipc);
1478                                 break;
1479                         case 33:
1480                                 download(ipc, 0);
1481                                 break;
1482                         case 34:
1483                                 download(ipc, 1);
1484                                 break;
1485                         case 31:
1486                                 download(ipc, 2);
1487                                 break;
1488                         case 43:
1489                                 download(ipc, 3);
1490                                 break;
1491                         case 45:
1492                                 download(ipc, 4);
1493                                 break;
1494                         case 55:
1495                                 download(ipc, 5);
1496                                 break;
1497                         case 39:
1498                                 upload(ipc, 0);
1499                                 break;
1500                         case 40:
1501                                 upload(ipc, 1);
1502                                 break;
1503                         case 42:
1504                                 upload(ipc, 2);
1505                                 break;
1506                         case 44:
1507                                 upload(ipc, 3);
1508                                 break;
1509                         case 57:
1510                                 cli_upload(ipc);
1511                                 break;
1512                         case 16:
1513                                 ungoto(ipc);
1514                                 break;
1515                         case 24:
1516                                 whoknows(ipc);
1517                                 break;
1518                         case 26:
1519                                 validate(ipc);
1520                                 break;
1521                         case 29:
1522                         case 30:
1523                                 if (!rc_alt_semantics) {
1524                                         updatels(ipc);
1525                                 }
1526                                 termn8 = 1;
1527                                 break;
1528                         case 48:
1529                                 enterinfo(ipc);
1530                                 break;
1531                         case 49:
1532                                 readinfo(ipc);
1533                                 break;
1534                         case 72:
1535                                 cli_image_upload(ipc, "_userpic_");
1536                                 break;
1537                         case 73:
1538                                 cli_image_upload(ipc, "_roompic_");
1539                                 break;
1540
1541                         case 74:
1542                                 snprintf(aaa, sizeof aaa, "_floorpic_|%d", curr_floor);
1543                                 cli_image_upload(ipc, aaa);
1544                                 break;
1545
1546                         case 75:
1547                                 enternew(ipc, "roomname", aaa, 20);
1548                                 r = CtdlIPCChangeRoomname(ipc, aaa, bbb);
1549                                 if (r / 100 != 2)
1550                                         scr_printf("\n%s\n", aaa);
1551                                 break;
1552                         case 76:
1553                                 enternew(ipc, "hostname", aaa, 25);
1554                                 r = CtdlIPCChangeHostname(ipc, aaa, bbb);
1555                                 if (r / 100 != 2)
1556                                         scr_printf("\n%s\n", aaa);
1557                                 break;
1558                         case 77:
1559                                 enternew(ipc, "username", aaa, 32);
1560                                 r = CtdlIPCChangeUsername(ipc, aaa, bbb);
1561                                 if (r / 100 != 2)
1562                                         scr_printf("\n%s\n", aaa);
1563                                 break;
1564
1565                         case 35:
1566                                 set_password(ipc);
1567                                 break;
1568
1569                         case 21:
1570                                 if (argbuf[0] == 0)
1571                                         strcpy(aaa, "?");
1572                                 display_help(ipc, argbuf);
1573                                 break;
1574
1575                         case 41:
1576                                 formout(ipc, "register");
1577                                 entregis(ipc);
1578                                 break;
1579
1580                         case 15:
1581                                 scr_printf("Are you sure (y/n)? ");
1582                                 if (yesno() == 1) {
1583                                         if (!rc_alt_semantics)
1584                                                 updatels(ipc);
1585                                         a = 0;
1586                                         termn8 = 1;
1587                                 }
1588                                 break;
1589
1590                         case 85:
1591                                 scr_printf("All users will be disconnected!  "
1592                                            "Really terminate the server? ");
1593                                 if (yesno() == 1) {
1594                                         if (!rc_alt_semantics)
1595                                                 updatels(ipc);
1596                                         r = CtdlIPCTerminateServerNow(ipc, aaa);
1597                                         scr_printf("%s\n", aaa);
1598                                         if (r / 100 == 2) {
1599                                                 a = 0;
1600                                                 termn8 = 1;
1601                                         }
1602                                 }
1603                                 break;
1604
1605                         case 86:
1606                                 scr_printf("Do you really want to schedule a "
1607                                            "server shutdown? ");
1608                                 if (yesno() == 1) {
1609                                         r = CtdlIPCTerminateServerScheduled(ipc, 1, aaa);
1610                                         if (r / 100 == 2) {
1611                                                 if (atoi(aaa)) {
1612                                                         scr_printf(
1613                                                                    "The Citadel server will terminate when all users are logged off.\n"
1614                                                                    );
1615                                                 } else {
1616                                                         scr_printf(
1617                                                                    "The Citadel server will not terminate.\n"
1618                                                                    );
1619                                                 }
1620                                         }
1621                                 }
1622                                 break;
1623
1624                         case 87:
1625                                 network_config_management(ipc, "listrecp",
1626                                                           "Message-by-message mailing list recipients");
1627                                 break;
1628
1629                         case 94:
1630                                 network_config_management(ipc, "digestrecp",
1631                                                           "Digest mailing list recipients");
1632                                 break;
1633
1634                         case 89:
1635                                 network_config_management(ipc, "ignet_push_share",
1636                                                           "Nodes with which we share this room");
1637                                 break;
1638
1639                         case 88:
1640                                 do_ignet_configuration(ipc);
1641                                 break;
1642
1643                         case 92:
1644                                 do_filterlist_configuration(ipc);
1645                                 break;
1646
1647                         case 6:
1648                                 if (rc_alt_semantics) {
1649                                         updatelsa(ipc);
1650                                 }
1651                                 gotonext(ipc);
1652                                 break;
1653
1654                         case 3:
1655                                 chatmode(ipc);
1656                                 break;
1657
1658                         case 2:
1659                                 if (ipc->isLocal) {
1660                                         screen_reset();
1661                                         sttybbs(SB_RESTORE);
1662                                         snprintf(aaa, sizeof aaa, "USERNAME=\042%s\042; export USERNAME;"
1663                                                  "exec ./subsystem %ld %d %d", fullname,
1664                                                  usernum, screenwidth, axlevel);
1665                                         ka_system(aaa);
1666                                         sttybbs(SB_NO_INTR);
1667                                         screen_set();
1668                                 } else {
1669                                         scr_printf("*** Can't run doors when server is not local.\n");
1670                                 }
1671                                 break;
1672
1673                         case 17:
1674                                 who_is_online(ipc, 0);
1675                                 break;
1676
1677                         case 79:
1678                                 who_is_online(ipc, 1);
1679                                 break;
1680
1681                         case 91:
1682                                 who_is_online(ipc, 2);
1683                                 break;
1684
1685                         case 80:
1686                                 do_system_configuration(ipc);
1687                                 break;
1688
1689                         case 82:
1690                                 do_internet_configuration(ipc);
1691                                 break;
1692
1693                         case 83:
1694                                 check_message_base(ipc);
1695                                 break;
1696
1697                         case 84:
1698                                 quiet_mode(ipc);
1699                                 break;
1700
1701                         case 93:
1702                                 stealth_mode(ipc);
1703                                 break;
1704
1705                         case 50:
1706                                 enter_config(ipc, 2);
1707                                 break;
1708
1709                         case 37:
1710                                 enter_config(ipc, 0);
1711                                 set_floor_mode(ipc);
1712                                 break;
1713
1714                         case 59:
1715                                 enter_config(ipc, 3);
1716                                 set_floor_mode(ipc);
1717                                 break;
1718
1719                         case 60:
1720                                 gotofloor(ipc, argbuf, GF_GOTO);
1721                                 break;
1722
1723                         case 61:
1724                                 gotofloor(ipc, argbuf, GF_SKIP);
1725                                 break;
1726
1727                         case 62:
1728                                 forget_this_floor(ipc);
1729                                 break;
1730
1731                         case 63:
1732                                 create_floor(ipc);
1733                                 break;
1734
1735                         case 64:
1736                                 edit_floor(ipc);
1737                                 break;
1738
1739                         case 65:
1740                                 kill_floor(ipc);
1741                                 break;
1742
1743                         case 66:
1744                                 enter_bio(ipc);
1745                                 break;
1746
1747                         case 67:
1748                                 read_bio(ipc);
1749                                 break;
1750
1751                         case 25:
1752                                 edituser(ipc);
1753                                 break;
1754
1755                         case 8:
1756                                 knrooms(ipc, floor_mode);
1757                                 scr_printf("\n");
1758                                 break;
1759
1760                         case 68:
1761                                 knrooms(ipc, 2);
1762                                 scr_printf("\n");
1763                                 break;
1764
1765                         case 69:
1766                                 misc_server_cmd(ipc, argbuf);
1767                                 break;
1768
1769                         case 70:
1770                                 edit_system_message(ipc, argbuf);
1771                                 break;
1772
1773                         case 19:
1774                                 listzrooms(ipc);
1775                                 scr_printf("\n");
1776                                 break;
1777
1778                         case 51:
1779                                 deletefile(ipc);
1780                                 break;
1781
1782                         case 53:
1783                                 netsendfile(ipc);
1784                                 break;
1785
1786                         case 54:
1787                                 movefile(ipc);
1788                                 break;
1789
1790                         case 56:
1791                                 page_user(ipc);
1792                                 break;
1793
1794                         default: /* allow some math on the command */
1795                                 /* commands 100... to 100+MAX_EDITORS-1 will
1796                                    call the appropriate editor... in other
1797                                    words, command numbers 100+ will match
1798                                    the citadel.rc keys editor0, editor1, etc.*/
1799                                 if (mcmd >= 100 && mcmd < (100+MAX_EDITORS))
1800                                 {
1801                                         /* entmsg mode >=2 select editor */
1802                                         entmsg(ipc, 0, mcmd - 100 + 2);
1803                                         break;
1804                                 }
1805                         }       /* end switch */
1806         } while (termn8 == 0);
1807
1808 TERMN8: scr_printf("%s logged out.", fullname);
1809         termn8 = 0;
1810         color(ORIGINAL_PAIR);
1811         scr_printf("\n");
1812         while (march != NULL) {
1813                 remove_march(march->march_name, 0);
1814         }
1815         if (mcmd == 30) {
1816                 sln_printf("\n\nType 'off' to disconnect, or next user...\n");
1817         }
1818         CtdlIPCLogout(ipc);
1819         if ((mcmd == 29) || (mcmd == 15)) {
1820                 screen_delete();
1821                 sttybbs(SB_RESTORE);
1822                 formout(ipc, "goodbye");
1823                 logoff(ipc, 0);
1824         }
1825         goto GSTA;
1826
1827 }       /* end main() */