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