citadel/citadel.c

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