citadel/utillib/citadel_ipc.c

   1 /* $Id$
   2  *
   3  * Copyright (c) 1987-2009 by the citadel.org team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include "sysdep.h"
  21 #if TIME_WITH_SYS_TIME
  22 # include <sys/time.h>
  23 # include <time.h>
  24 #else
  25 # if HAVE_SYS_TIME_H
  26 #  include <sys/time.h>
  27 # else
  28 #  include <time.h>
  29 # endif
  30 #endif
  31 #include <unistd.h>
  32 #include <stdio.h>
  33 #include <sys/types.h>
  34 #include <string.h>
  35 #ifdef HAVE_MALLOC_H
  36 #include <malloc.h>
  37 #endif
  38 #include <stdlib.h>
  39 #include <ctype.h>
  40 #include <sys/socket.h>
  41 #include <arpa/inet.h>
  42 #include <netinet/in.h>
  43 #include <netdb.h>
  44 #include <sys/un.h>
  45 #include <errno.h>
  46 #ifdef THREADED_CLIENT
  47 #include <pthread.h>
  48 #endif
  49 #include <libcitadel.h>
  50 #include "citadel.h"
  51 #include "citadel_ipc.h"
  52 #include "citadel_decls.h"
  53 #include "citadel_dirs.h"
  54 #ifdef THREADED_CLIENT
  55 pthread_mutex_t rwlock;
  56 #endif
  57
  58 #ifdef HAVE_OPENSSL
  59 static SSL_CTX *ssl_ctx;
  60 char arg_encrypt;
  61 char rc_encrypt;
  62 #ifdef THREADED_CLIENT
  63 pthread_mutex_t **Critters;                     /* Things that need locking */
  64 #endif /* THREADED_CLIENT */
  65
  66 #endif /* HAVE_OPENSSL */
  67
  68 #ifndef INADDR_NONE
  69 #define INADDR_NONE 0xffffffff
  70 #endif
  71
  72 static void (*status_hook)(char *s) = NULL;
  73
  74 void setCryptoStatusHook(void (*hook)(char *s)) {
  75         status_hook = hook;
  76 }
  77
  78 void CtdlIPC_SetNetworkStatusCallback(CtdlIPC *ipc, void (*hook)(int state)) {
  79         ipc->network_status_cb = hook;
  80 }
  81
  82
  83 char instant_msgs = 0;
  84
  85
  86 static void serv_read(CtdlIPC *ipc, char *buf, unsigned int bytes);
  87 static void serv_write(CtdlIPC *ipc, const char *buf, unsigned int nbytes);
  88 #ifdef HAVE_OPENSSL
  89 static void serv_read_ssl(CtdlIPC *ipc, char *buf, unsigned int bytes);
  90 static void serv_write_ssl(CtdlIPC *ipc, const char *buf, unsigned int nbytes);
  91 static void endtls(SSL *ssl);
  92 #ifdef THREADED_CLIENT
  93 static unsigned long id_callback(void);
  94 #endif /* THREADED_CLIENT */
  95 #endif /* HAVE_OPENSSL */
  96 static void CtdlIPC_getline(CtdlIPC* ipc, char *buf);
  97 static void CtdlIPC_putline(CtdlIPC *ipc, const char *buf);
  98
  99
 100
 101 const char *svn_revision(void);
 102
 103 /*
 104  * Does nothing.  The server should always return 200.
 105  */
 106 int CtdlIPCNoop(CtdlIPC *ipc)
 107 {
 108         char aaa[128];
 109
 110         return CtdlIPCGenericCommand(ipc, "NOOP", NULL, 0, NULL, NULL, aaa);
 111 }
 112
 113
 114 /*
 115  * Does nothing interesting.  The server should always return 200
 116  * along with your string.
 117  */
 118 int CtdlIPCEcho(CtdlIPC *ipc, const char *arg, char *cret)
 119 {
 120         register int ret;
 121         char *aaa;
 122
 123         if (!arg) return -2;
 124         if (!cret) return -2;
 125
 126         aaa = (char *)malloc((size_t)(strlen(arg) + 6));
 127         if (!aaa) return -1;
 128
 129         sprintf(aaa, "ECHO %s", arg);
 130         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 131         free(aaa);
 132         return ret;
 133 }
 134
 135
 136 /*
 137  * Asks the server to close the connecction.
 138  * Should always return 200.
 139  */
 140 int CtdlIPCQuit(CtdlIPC *ipc)
 141 {
 142         register int ret = 221;         /* Default to successful quit */
 143         char aaa[SIZ];
 144
 145         CtdlIPC_lock(ipc);
 146         if (ipc->sock > -1) {
 147                 CtdlIPC_putline(ipc, "QUIT");
 148                 CtdlIPC_getline(ipc, aaa);
 149                 ret = atoi(aaa);
 150         }
 151 #ifdef HAVE_OPENSSL
 152         if (ipc->ssl)
 153                 SSL_shutdown(ipc->ssl);
 154         ipc->ssl = NULL;
 155 #endif
 156         if (ipc->sock)
 157                 shutdown(ipc->sock, 2); /* Close connection; we're dead */
 158         ipc->sock = -1;
 159         CtdlIPC_unlock(ipc);
 160         return ret;
 161 }
 162
 163
 164 /*
 165  * Asks the server to log out.  Should always return 200, even if no user
 166  * was logged in.  The user will not be logged in after this!
 167  */
 168 int CtdlIPCLogout(CtdlIPC *ipc)
 169 {
 170         register int ret;
 171         char aaa[SIZ];
 172
 173         CtdlIPC_lock(ipc);
 174         CtdlIPC_putline(ipc, "LOUT");
 175         CtdlIPC_getline(ipc, aaa);
 176         ret = atoi(aaa);
 177         CtdlIPC_unlock(ipc);
 178         return ret;
 179 }
 180
 181
 182 /*
 183  * First stage of authentication - pass the username.  Returns 300 if the
 184  * username is able to log in, with the username correctly spelled in cret.
 185  * Returns various 500 error codes if the user doesn't exist, etc.
 186  */
 187 int CtdlIPCTryLogin(CtdlIPC *ipc, const char *username, char *cret)
 188 {
 189         register int ret;
 190         char *aaa;
 191
 192         if (!username) return -2;
 193         if (!cret) return -2;
 194
 195         aaa = (char *)malloc((size_t)(strlen(username) + 6));
 196         if (!aaa) return -1;
 197
 198         sprintf(aaa, "USER %s", username);
 199         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 200         free(aaa);
 201         return ret;
 202 }
 203
 204
 205 /*
 206  * Second stage of authentication - provide password.  The server returns
 207  * 200 and several arguments in cret relating to the user's account.
 208  */
 209 int CtdlIPCTryPassword(CtdlIPC *ipc, const char *passwd, char *cret)
 210 {
 211         register int ret;
 212         char *aaa;
 213
 214         if (!passwd) return -2;
 215         if (!cret) return -2;
 216
 217         aaa = (char *)malloc((size_t)(strlen(passwd) + 6));
 218         if (!aaa) return -1;
 219
 220         sprintf(aaa, "PASS %s", passwd);
 221         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 222         free(aaa);
 223         return ret;
 224 }
 225
 226
 227 /*
 228  * Second stage of authentication - provide password.  The server returns
 229  * 200 and several arguments in cret relating to the user's account.
 230  */
 231 int CtdlIPCTryApopPassword(CtdlIPC *ipc, const char *response, char *cret)
 232 {
 233         register int ret;
 234         char *aaa;
 235
 236         if (!response) return -2;
 237         if (!cret) return -2;
 238
 239         aaa = (char *)malloc((size_t)(strlen(response) + 6));
 240         if (!aaa) return -1;
 241
 242         sprintf(aaa, "PAS2 %s", response);
 243         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 244         free(aaa);
 245         return ret;
 246 }
 247
 248
 249 /*
 250  * Create a new user.  This returns 200 plus the same arguments as TryPassword
 251  * if selfservice is nonzero, unless there was a problem creating the account.
 252  * If selfservice is zero, creates a new user but does not log out the existing
 253  * user - intended for use by system administrators to create accounts on
 254  * behalf of other users.
 255  */
 256 int CtdlIPCCreateUser(CtdlIPC *ipc, const char *username, int selfservice, char *cret)
 257 {
 258         register int ret;
 259         char *aaa;
 260
 261         if (!username) return -2;
 262         if (!cret) return -2;
 263
 264         aaa = (char *)malloc((size_t)(strlen(username) + 6));
 265         if (!aaa) return -1;
 266
 267         sprintf(aaa, "%s %s", selfservice ? "NEWU" : "CREU",  username);
 268         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 269         free(aaa);
 270         return ret;
 271 }
 272
 273
 274 /*
 275  * Changes the user's password.  Returns 200 if changed, errors otherwise.
 276  */
 277 int CtdlIPCChangePassword(CtdlIPC *ipc, const char *passwd, char *cret)
 278 {
 279         register int ret;
 280         char *aaa;
 281
 282         if (!passwd) return -2;
 283         if (!cret) return -2;
 284
 285         aaa = (char *)malloc((size_t)(strlen(passwd) + 6));
 286         if (!aaa) return -1;
 287
 288         sprintf(aaa, "SETP %s", passwd);
 289         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 290         free(aaa);
 291         return ret;
 292 }
 293
 294
 295 /* LKRN */
 296 /* Caller must free the march list */
 297 /* Room types are defined in enum RoomList; keep these in sync! */
 298 /* floor is -1 for all, or floornum */
 299 int CtdlIPCKnownRooms(CtdlIPC *ipc, enum RoomList which, int floor, struct march **listing, char *cret)
 300 {
 301         register int ret;
 302         struct march *march = NULL;
 303         static char *proto[] =
 304                 {"LKRA", "LKRN", "LKRO", "LZRM", "LRMS", "LPRM" };
 305         char aaa[SIZ];
 306         char *bbb = NULL;
 307         size_t bbb_len;
 308
 309         if (!listing) return -2;
 310         if (*listing) return -2;        /* Free the listing first */
 311         if (!cret) return -2;
 312         /* if (which < 0 || which > 4) return -2; */
 313         if (floor < -1) return -2;      /* Can't validate upper bound, sorry */
 314
 315         sprintf(aaa, "%s %d", proto[which], floor);
 316         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, &bbb, &bbb_len, cret);
 317         if (ret / 100 == 1) {
 318                 struct march *mptr;
 319
 320                 while (bbb && strlen(bbb)) {
 321                         int a;
 322
 323                         extract_token(aaa, bbb, 0, '\n', sizeof aaa);
 324                         a = strlen(aaa);
 325                         memmove(bbb, bbb + a + 1, strlen(bbb) - a);
 326                         mptr = (struct march *) malloc(sizeof (struct march));
 327                         if (mptr) {
 328                                 mptr->next = NULL;
 329                                 extract_token(mptr->march_name, aaa, 0, '|', sizeof mptr->march_name);
 330                                 mptr->march_flags = (unsigned int) extract_int(aaa, 1);
 331                                 mptr->march_floor = (char) extract_int(aaa, 2);
 332                                 mptr->march_order = (char) extract_int(aaa, 3);
 333                                 mptr->march_flags2 = (unsigned int) extract_int(aaa, 4);
 334                                 mptr->march_access = (char) extract_int(aaa, 5);
 335                                 if (march == NULL)
 336                                         march = mptr;
 337                                 else {
 338                                         struct march *mptr2;
 339
 340                                         mptr2 = march;
 341                                         while (mptr2->next != NULL)
 342                                                 mptr2 = mptr2->next;
 343                                         mptr2->next = mptr;
 344                                 }
 345                         }
 346                 }
 347         }
 348         *listing = march;
 349         if (bbb) free(bbb);
 350         return ret;
 351 }
 352
 353
 354 /* GETU */
 355 /* Caller must free the struct ctdluser; caller may pass an existing one */
 356 int CtdlIPCGetConfig(CtdlIPC *ipc, struct ctdluser **uret, char *cret)
 357 {
 358         register int ret;
 359
 360         if (!cret) return -2;
 361         if (!uret) return -2;
 362         if (!*uret) *uret = (struct ctdluser *)calloc(1, sizeof (struct ctdluser));
 363         if (!*uret) return -1;
 364
 365         ret = CtdlIPCGenericCommand(ipc, "GETU", NULL, 0, NULL, NULL, cret);
 366         if (ret / 100 == 2) {
 367                 uret[0]->USscreenwidth = extract_int(cret, 0);
 368                 uret[0]->USscreenheight = extract_int(cret, 1);
 369                 uret[0]->flags = extract_int(cret, 2);
 370         }
 371         return ret;
 372 }
 373
 374
 375 /* SETU */
 376 int CtdlIPCSetConfig(CtdlIPC *ipc, struct ctdluser *uret, char *cret)
 377 {
 378         char aaa[48];
 379
 380         if (!uret) return -2;
 381         if (!cret) return -2;
 382
 383         sprintf(aaa, "SETU %d|%d|%d",
 384                         uret->USscreenwidth, uret->USscreenheight,
 385                         uret->flags);
 386         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 387 }
 388
 389
 390 /* RENU */
 391 int CtdlIPCRenameUser(CtdlIPC *ipc, char *oldname, char *newname, char *cret)
 392 {
 393         register int ret;
 394         char cmd[256];
 395
 396         if (!oldname) return -2;
 397         if (!newname) return -2;
 398         if (!cret) return -2;
 399
 400         snprintf(cmd, sizeof cmd, "RENU %s|%s", oldname, newname);
 401         ret = CtdlIPCGenericCommand(ipc, cmd, NULL, 0, NULL, NULL, cret);
 402         return ret;
 403 }
 404
 405
 406 /* GOTO */
 407 int CtdlIPCGotoRoom(CtdlIPC *ipc, const char *room, const char *passwd,
 408                 struct ctdlipcroom **rret, char *cret)
 409 {
 410         register int ret;
 411         char *aaa;
 412
 413         if (!cret) return -2;
 414         if (!rret) return -2;
 415         if (!*rret) *rret = (struct ctdlipcroom *)calloc(1, sizeof (struct ctdlipcroom));
 416         if (!*rret) return -1;
 417
 418         if (passwd) {
 419                 aaa = (char *)malloc(strlen(room) + strlen(passwd) + 7);
 420                 if (!aaa) {
 421                         free(*rret);
 422                         return -1;
 423                 }
 424                 sprintf(aaa, "GOTO %s|%s", room, passwd);
 425         } else {
 426                 aaa = (char *)malloc(strlen(room) + 6);
 427                 if (!aaa) {
 428                         free(*rret);
 429                         return -1;
 430                 }
 431                 sprintf(aaa, "GOTO %s", room);
 432         }
 433         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 434         if (ret / 100 == 2) {
 435                 extract_token(rret[0]->RRname, cret, 0, '|', sizeof rret[0]->RRname);
 436                 rret[0]->RRunread = extract_long(cret, 1);
 437                 rret[0]->RRtotal = extract_long(cret, 2);
 438                 rret[0]->RRinfoupdated = extract_int(cret, 3);
 439                 rret[0]->RRflags = extract_int(cret, 4);
 440                 rret[0]->RRhighest = extract_long(cret, 5);
 441                 rret[0]->RRlastread = extract_long(cret, 6);
 442                 rret[0]->RRismailbox = extract_int(cret, 7);
 443                 rret[0]->RRaide = extract_int(cret, 8);
 444                 rret[0]->RRnewmail = extract_long(cret, 9);
 445                 rret[0]->RRfloor = extract_int(cret, 10);
 446                 rret[0]->RRcurrentview = extract_int(cret, 11);
 447                 rret[0]->RRdefaultview = extract_int(cret, 12);
 448                 /* position 13 is a trash folder flag ... irrelevant in this client */
 449                 rret[0]->RRflags2 = extract_int(cret, 14);
 450         } else {
 451                 free(*rret);
 452                 *rret = NULL;
 453         }
 454         free(aaa);
 455         return ret;
 456 }
 457
 458
 459 /* MSGS */
 460 /* which is 0 = all, 1 = old, 2 = new, 3 = last, 4 = first, 5 = gt, 6 = lt */
 461 /* whicharg is number of messages, applies to last, first, gt, lt */
 462 int CtdlIPCGetMessages(CtdlIPC *ipc, enum MessageList which, int whicharg,
 463                 const char *mtemplate, unsigned long **mret, char *cret)
 464 {
 465         register int ret;
 466         register unsigned long count = 0;
 467         static char *proto[] =
 468                 { "ALL", "OLD", "NEW", "LAST", "FIRST", "GT", "LT" };
 469         char aaa[33];
 470         char *bbb = NULL;
 471         size_t bbb_len;
 472
 473         if (!cret) return -2;
 474         if (!mret) return -2;
 475         if (*mret) return -2;
 476         if (which < 0 || which > 6) return -2;
 477
 478         if (which <= 2)
 479                 sprintf(aaa, "MSGS %s||%d", proto[which],
 480                                 (mtemplate) ? 1 : 0);
 481         else
 482                 sprintf(aaa, "MSGS %s|%d|%d", proto[which], whicharg,
 483                                 (mtemplate) ? 1 : 0);
 484         if (mtemplate) count = strlen(mtemplate);
 485         ret = CtdlIPCGenericCommand(ipc, aaa, mtemplate, count, &bbb, &bbb_len, cret);
 486         if (ret / 100 != 1)
 487                 return ret;
 488         count = 0;
 489         *mret = (unsigned long *)calloc(1, sizeof(unsigned long));
 490         if (!*mret)
 491                 return -1;
 492         while (bbb && strlen(bbb)) {
 493                 extract_token(aaa, bbb, 0, '\n', sizeof aaa);
 494                 remove_token(bbb, 0, '\n');
 495                 *mret = (unsigned long *)realloc(*mret, (size_t)((count + 2) *
 496                                         sizeof (unsigned long)));
 497                 if (*mret) {
 498                         (*mret)[count++] = atol(aaa);
 499                         (*mret)[count] = 0L;
 500                 } else {
 501                         break;
 502                 }
 503         }
 504         if (bbb) free(bbb);
 505         return ret;
 506 }
 507
 508
 509 /* MSG0, MSG2 */
 510 int CtdlIPCGetSingleMessage(CtdlIPC *ipc, long msgnum, int headers, int as_mime,
 511                 struct ctdlipcmessage **mret, char *cret)
 512 {
 513         register int ret;
 514         char aaa[SIZ];
 515         char *bbb = NULL;
 516         size_t bbb_len;
 517         int multipart_hunting = 0;
 518         char multipart_prefix[128];
 519         char encoding[256];
 520
 521         if (!cret) return -1;
 522         if (!mret) return -1;
 523         if (!*mret) *mret = (struct ctdlipcmessage *)calloc(1, sizeof (struct ctdlipcmessage));
 524         if (!*mret) return -1;
 525         if (!msgnum) return -1;
 526
 527         strcpy(encoding, "");
 528         strcpy(mret[0]->content_type, "");
 529         sprintf(aaa, "MSG%d %ld|%d", as_mime, msgnum, headers);
 530         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, &bbb, &bbb_len, cret);
 531         if (ret / 100 == 1) {
 532                 if (as_mime != 2) {
 533                         strcpy(mret[0]->mime_chosen, "1");      /* Default chosen-part is "1" */
 534                         while (strlen(bbb) > 4 && bbb[4] == '=') {
 535                                 extract_token(aaa, bbb, 0, '\n', sizeof aaa);
 536                                 remove_token(bbb, 0, '\n');
 537
 538                                 if (!strncasecmp(aaa, "nhdr=yes", 8))
 539                                         mret[0]->nhdr = 1;
 540                                 else if (!strncasecmp(aaa, "from=", 5))
 541                                         safestrncpy(mret[0]->author, &aaa[5], SIZ);
 542                                 else if (!strncasecmp(aaa, "type=", 5))
 543                                         mret[0]->type = atoi(&aaa[5]);
 544                                 else if (!strncasecmp(aaa, "msgn=", 5))
 545                                         safestrncpy(mret[0]->msgid, &aaa[5], SIZ);
 546                                 else if (!strncasecmp(aaa, "subj=", 5))
 547                                         safestrncpy(mret[0]->subject, &aaa[5], SIZ);
 548                                 else if (!strncasecmp(aaa, "rfca=", 5))
 549                                         safestrncpy(mret[0]->email, &aaa[5], SIZ);
 550                                 else if (!strncasecmp(aaa, "hnod=", 5))
 551                                         safestrncpy(mret[0]->hnod, &aaa[5], SIZ);
 552                                 else if (!strncasecmp(aaa, "room=", 5))
 553                                         safestrncpy(mret[0]->room, &aaa[5], SIZ);
 554                                 else if (!strncasecmp(aaa, "node=", 5))
 555                                         safestrncpy(mret[0]->node, &aaa[5], SIZ);
 556                                 else if (!strncasecmp(aaa, "rcpt=", 5))
 557                                         safestrncpy(mret[0]->recipient, &aaa[5], SIZ);
 558                                 else if (!strncasecmp(aaa, "wefw=", 5))
 559                                         safestrncpy(mret[0]->references, &aaa[5], SIZ);
 560                                 else if (!strncasecmp(aaa, "time=", 5))
 561                                         mret[0]->time = atol(&aaa[5]);
 562
 563                                 /* Multipart/alternative prefix & suffix strings help
 564                                  * us to determine which part we want to download.
 565                                  */
 566                                 else if (!strncasecmp(aaa, "pref=", 5)) {
 567                                         extract_token(multipart_prefix, &aaa[5], 1, '|', sizeof multipart_prefix);
 568                                         if (!strcasecmp(multipart_prefix,
 569                                            "multipart/alternative")) {
 570                                                 ++multipart_hunting;
 571                                         }
 572                                 }
 573                                 else if (!strncasecmp(aaa, "suff=", 5)) {
 574                                         extract_token(multipart_prefix, &aaa[5], 1, '|', sizeof multipart_prefix);
 575                                         if (!strcasecmp(multipart_prefix,
 576                                            "multipart/alternative")) {
 577                                                 ++multipart_hunting;
 578                                         }
 579                                 }
 580
 581                                 else if (!strncasecmp(aaa, "part=", 5)) {
 582                                         struct parts *ptr, *chain;
 583
 584                                         ptr = (struct parts *)calloc(1, sizeof (struct parts));
 585                                         if (ptr) {
 586
 587                                                 /* Fill the buffers for the caller */
 588                                                 extract_token(ptr->name, &aaa[5], 0, '|', sizeof ptr->name);
 589                                                 extract_token(ptr->filename, &aaa[5], 1, '|', sizeof ptr->filename);
 590                                                 extract_token(ptr->number, &aaa[5], 2, '|', sizeof ptr->number);
 591                                                 extract_token(ptr->disposition, &aaa[5], 3, '|', sizeof ptr->disposition);
 592                                                 extract_token(ptr->mimetype, &aaa[5], 4, '|', sizeof ptr->mimetype);
 593                                                 ptr->length = extract_long(&aaa[5], 5);
 594                                                 if (!mret[0]->attachments)
 595                                                         mret[0]->attachments = ptr;
 596                                                 else {
 597                                                         chain = mret[0]->attachments;
 598                                                         while (chain->next)
 599                                                                 chain = chain->next;
 600                                                         chain->next = ptr;
 601                                                 }
 602
 603                                                 /* Now handle multipart/alternative */
 604                                                 if (multipart_hunting > 0) {
 605                                                         if ( (!strcasecmp(ptr->mimetype,
 606                                                              "text/plain"))
 607                                                            || (!strcasecmp(ptr->mimetype,
 608                                                               "text/html")) ) {
 609                                                                 strcpy(mret[0]->mime_chosen,
 610                                                                         ptr->number);
 611                                                         }
 612                                                 }
 613
 614                                         }
 615                                 }
 616                         }
 617                         /* Eliminate "text\n" */
 618                         remove_token(bbb, 0, '\n');
 619
 620                         /* If doing a MIME thing, pull out the extra headers */
 621                         if (as_mime == 4) {
 622                                 do {
 623                                         if (!strncasecmp(bbb, "Content-type:", 13)) {
 624                                                 extract_token(mret[0]->content_type, bbb, 0, '\n', sizeof mret[0]->content_type);
 625                                                 strcpy(mret[0]->content_type, &mret[0]->content_type[13]);
 626                                                 striplt(mret[0]->content_type);
 627
 628                                                 /* strip out ";charset=" portion.  FIXME do something with
 629                                                  * the charset (like... convert it) instead of just throwing
 630                                                  * it away
 631                                                  */
 632                                                 if (strstr(mret[0]->content_type, ";") != NULL) {
 633                                                         strcpy(strstr(mret[0]->content_type, ";"), "");
 634                                                 }
 635
 636                                         }
 637                                         if (!strncasecmp(bbb, "X-Citadel-MSG4-Partnum:", 23)) {
 638                                                 extract_token(mret[0]->mime_chosen, bbb, 0, '\n', sizeof mret[0]->mime_chosen);
 639                                                 strcpy(mret[0]->mime_chosen, &mret[0]->mime_chosen[23]);
 640                                                 striplt(mret[0]->mime_chosen);
 641                                         }
 642                                         if (!strncasecmp(bbb, "Content-transfer-encoding:", 26)) {
 643                                                 extract_token(encoding, bbb, 0, '\n', sizeof encoding);
 644                                                 strcpy(encoding, &encoding[26]);
 645                                                 striplt(encoding);
 646                                         }
 647                                         remove_token(bbb, 0, '\n');
 648                                 } while ((bbb[0] != 0) && (bbb[0] != '\n'));
 649                                 remove_token(bbb, 0, '\n');
 650                         }
 651
 652
 653                 }
 654                 if (strlen(bbb)) {
 655
 656                         if ( (!strcasecmp(encoding, "base64")) || (!strcasecmp(encoding, "quoted-printable")) ) {
 657                                 char *ccc = NULL;
 658                                 int bytes_decoded = 0;
 659                                 ccc = malloc(strlen(bbb) + 32768);
 660                                 if (!strcasecmp(encoding, "base64")) {
 661                                         bytes_decoded = CtdlDecodeBase64(ccc, bbb, strlen(bbb));
 662                                 }
 663                                 else if (!strcasecmp(encoding, "quoted-printable")) {
 664                                         bytes_decoded = CtdlDecodeQuotedPrintable(ccc, bbb, strlen(bbb));
 665                                 }
 666                                 ccc[bytes_decoded] = 0;
 667                                 free(bbb);
 668                                 bbb = ccc;
 669                         }
 670
 671                         /* FIXME: Strip trailing whitespace */
 672                         bbb = (char *)realloc(bbb, (size_t)(strlen(bbb) + 1));
 673
 674                 } else {
 675                         bbb = (char *)realloc(bbb, 1);
 676                         *bbb = '\0';
 677                 }
 678                 mret[0]->text = bbb;
 679         }
 680         return ret;
 681 }
 682
 683
 684 /* WHOK */
 685 int CtdlIPCWhoKnowsRoom(CtdlIPC *ipc, char **listing, char *cret)
 686 {
 687         register int ret;
 688         size_t bytes;
 689
 690         if (!cret) return -2;
 691         if (!listing) return -2;
 692         if (*listing) return -2;
 693
 694         ret = CtdlIPCGenericCommand(ipc, "WHOK", NULL, 0, listing, &bytes, cret);
 695         return ret;
 696 }
 697
 698
 699 /* INFO */
 700 int CtdlIPCServerInfo(CtdlIPC *ipc, char *cret)
 701 {
 702         register int ret;
 703         size_t bytes;
 704         char *listing = NULL;
 705         char buf[SIZ];
 706
 707         if (!cret) return -2;
 708
 709         ret = CtdlIPCGenericCommand(ipc, "INFO", NULL, 0, &listing, &bytes, cret);
 710         if (ret / 100 == 1) {
 711                 int line = 0;
 712
 713                 while (*listing && strlen(listing)) {
 714                         extract_token(buf, listing, 0, '\n', sizeof buf);
 715                         remove_token(listing, 0, '\n');
 716                         switch (line++) {
 717                         case 0:         ipc->ServInfo.pid = atoi(buf);
 718                                         break;
 719                         case 1:         strcpy(ipc->ServInfo.nodename,buf);
 720                                         break;
 721                         case 2:         strcpy(ipc->ServInfo.humannode,buf);
 722                                         break;
 723                         case 3:         strcpy(ipc->ServInfo.fqdn,buf);
 724                                         break;
 725                         case 4:         strcpy(ipc->ServInfo.software,buf);
 726                                         break;
 727                         case 5:         ipc->ServInfo.rev_level = atoi(buf);
 728                                         break;
 729                         case 6:         strcpy(ipc->ServInfo.site_location,buf);
 730                                         break;
 731                         case 7:         strcpy(ipc->ServInfo.sysadm,buf);
 732                                         break;
 733                         case 9:         strcpy(ipc->ServInfo.moreprompt,buf);
 734                                         break;
 735                         case 10:        ipc->ServInfo.ok_floors = atoi(buf);
 736                                         break;
 737                         case 11:        ipc->ServInfo.paging_level = atoi(buf);
 738                                         break;
 739                         case 13:        ipc->ServInfo.supports_qnop = atoi(buf);
 740                                         break;
 741                         case 14:        ipc->ServInfo.supports_ldap = atoi(buf);
 742                                         break;
 743                         case 15:        ipc->ServInfo.newuser_disabled = atoi(buf);
 744                                         break;
 745                         case 16:        strcpy(ipc->ServInfo.default_cal_zone, buf);
 746                                         break;
 747                         case 17:        ipc->ServInfo.load_avg = atof(buf);
 748                                         break;
 749                         case 18:        ipc->ServInfo.worker_avg = atof(buf);
 750                                         break;
 751                         case 19:        ipc->ServInfo.thread_count = atoi(buf);
 752                                         break;
 753                         case 20:        ipc->ServInfo.has_sieve = atoi(buf);
 754                                         break;
 755                         case 21:        ipc->ServInfo.fulltext_enabled = atoi(buf);
 756                                         break;
 757                         case 22:        strcpy(ipc->ServInfo.svn_revision, buf);
 758                                         break;
 759                         }
 760                 }
 761
 762         }
 763         if (listing) free(listing);
 764         return ret;
 765 }
 766
 767
 768 /* RDIR */
 769 int CtdlIPCReadDirectory(CtdlIPC *ipc, char **listing, char *cret)
 770 {
 771         register int ret;
 772         size_t bytes;
 773
 774         if (!cret) return -2;
 775         if (!listing) return -2;
 776         if (*listing) return -2;
 777
 778         ret = CtdlIPCGenericCommand(ipc, "RDIR", NULL, 0, listing, &bytes, cret);
 779         return ret;
 780 }
 781
 782
 783 /*
 784  * Set last-read pointer in this room to msgnum, or 0 for HIGHEST.
 785  */
 786 int CtdlIPCSetLastRead(CtdlIPC *ipc, long msgnum, char *cret)
 787 {
 788         register int ret;
 789         char aaa[64];
 790
 791         if (!cret) return -2;
 792
 793         if (msgnum) {
 794                 sprintf(aaa, "SLRP %ld", msgnum);
 795         }
 796         else {
 797                 sprintf(aaa, "SLRP HIGHEST");
 798         }
 799         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 800         return ret;
 801 }
 802
 803
 804 /* INVT */
 805 int CtdlIPCInviteUserToRoom(CtdlIPC *ipc, const char *username, char *cret)
 806 {
 807         register int ret;
 808         char *aaa;
 809
 810         if (!cret) return -2;
 811         if (!username) return -2;
 812
 813         aaa = (char *)malloc(strlen(username) + 6);
 814         if (!aaa) return -1;
 815
 816         sprintf(aaa, "INVT %s", username);
 817         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 818         free(aaa);
 819         return ret;
 820 }
 821
 822
 823 /* KICK */
 824 int CtdlIPCKickoutUserFromRoom(CtdlIPC *ipc, const char *username, char *cret)
 825 {
 826         register int ret;
 827         char *aaa;
 828
 829         if (!cret) return -1;
 830         if (!username) return -1;
 831
 832         aaa = (char *)malloc(strlen(username) + 6);
 833
 834         sprintf(aaa, "KICK %s", username);
 835         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 836         free(aaa);
 837         return ret;
 838 }
 839
 840
 841 /* GETR */
 842 int CtdlIPCGetRoomAttributes(CtdlIPC *ipc, struct ctdlroom **qret, char *cret)
 843 {
 844         register int ret;
 845
 846         if (!cret) return -2;
 847         if (!qret) return -2;
 848         if (!*qret) *qret = (struct ctdlroom *)calloc(1, sizeof (struct ctdlroom));
 849         if (!*qret) return -1;
 850
 851         ret = CtdlIPCGenericCommand(ipc, "GETR", NULL, 0, NULL, NULL, cret);
 852         if (ret / 100 == 2) {
 853                 extract_token(qret[0]->QRname, cret, 0, '|', sizeof qret[0]->QRname);
 854                 extract_token(qret[0]->QRpasswd, cret, 1, '|', sizeof qret[0]->QRpasswd);
 855                 extract_token(qret[0]->QRdirname, cret, 2, '|', sizeof qret[0]->QRdirname);
 856                 qret[0]->QRflags = extract_int(cret, 3);
 857                 qret[0]->QRfloor = extract_int(cret, 4);
 858                 qret[0]->QRorder = extract_int(cret, 5);
 859                 qret[0]->QRdefaultview = extract_int(cret, 6);
 860                 qret[0]->QRflags2 = extract_int(cret, 7);
 861         }
 862         return ret;
 863 }
 864
 865
 866 /* SETR */
 867 /* set forget to kick all users out of room */
 868 int CtdlIPCSetRoomAttributes(CtdlIPC *ipc, int forget, struct ctdlroom *qret, char *cret)
 869 {
 870         register int ret;
 871         char *aaa;
 872
 873         if (!cret) return -2;
 874         if (!qret) return -2;
 875
 876         aaa = (char *)malloc(strlen(qret->QRname) + strlen(qret->QRpasswd) +
 877                         strlen(qret->QRdirname) + 64);
 878         if (!aaa) return -1;
 879
 880         sprintf(aaa, "SETR %s|%s|%s|%d|%d|%d|%d|%d|%d",
 881                         qret->QRname, qret->QRpasswd, qret->QRdirname,
 882                         qret->QRflags, forget, qret->QRfloor, qret->QRorder,
 883                         qret->QRdefaultview, qret->QRflags2);
 884         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 885         free(aaa);
 886         return ret;
 887 }
 888
 889
 890 /* GETA */
 891 int CtdlIPCGetRoomAide(CtdlIPC *ipc, char *cret)
 892 {
 893         if (!cret) return -1;
 894
 895         return CtdlIPCGenericCommand(ipc, "GETA", NULL, 0, NULL, NULL, cret);
 896 }
 897
 898
 899 /* SETA */
 900 int CtdlIPCSetRoomAide(CtdlIPC *ipc, const char *username, char *cret)
 901 {
 902         register int ret;
 903         char *aaa;
 904
 905         if (!cret) return -2;
 906         if (!username) return -2;
 907
 908         aaa = (char *)malloc(strlen(username) + 6);
 909         if (!aaa) return -1;
 910
 911         sprintf(aaa, "SETA %s", username);
 912         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 913         free(aaa);
 914         return ret;
 915 }
 916
 917
 918 /* ENT0 */
 919 int CtdlIPCPostMessage(CtdlIPC *ipc, int flag, int *subject_required,  struct ctdlipcmessage *mr, char *cret)
 920 {
 921         register int ret;
 922         char cmd[SIZ];
 923         char *ptr;
 924
 925         if (!cret) return -2;
 926         if (!mr) return -2;
 927
 928         if (mr->references) {
 929                 for (ptr=mr->references; *ptr != 0; ++ptr) {
 930                         if (*ptr == '|') *ptr = '!';
 931                 }
 932         }
 933
 934         snprintf(cmd, sizeof cmd,
 935                         "ENT0 %d|%s|%d|%d|%s|%s||||||%s|", flag, mr->recipient,
 936                         mr->anonymous, mr->type, mr->subject, mr->author, mr->references);
 937         ret = CtdlIPCGenericCommand(ipc, cmd, mr->text, strlen(mr->text), NULL,
 938                         NULL, cret);
 939         if ((flag == 0) && (subject_required != NULL)) {
 940                 /* Is the server strongly recommending that the user enter a message subject? */
 941                 if ((cret[3] != '\0') && (cret[4] != '\0')) {
 942                         *subject_required = extract_int(&cret[4], 1);
 943                 }
 944
 945
 946         }
 947         return ret;
 948 }
 949
 950
 951 /* RINF */
 952 int CtdlIPCRoomInfo(CtdlIPC *ipc, char **iret, char *cret)
 953 {
 954         size_t bytes;
 955
 956         if (!cret) return -2;
 957         if (!iret) return -2;
 958         if (*iret) return -2;
 959
 960         return CtdlIPCGenericCommand(ipc, "RINF", NULL, 0, iret, &bytes, cret);
 961 }
 962
 963
 964 /* DELE */
 965 int CtdlIPCDeleteMessage(CtdlIPC *ipc, long msgnum, char *cret)
 966 {
 967         char aaa[64];
 968
 969         if (!cret) return -2;
 970         if (!msgnum) return -2;
 971
 972         sprintf(aaa, "DELE %ld", msgnum);
 973         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 974 }
 975
 976
 977 /* MOVE */
 978 int CtdlIPCMoveMessage(CtdlIPC *ipc, int copy, long msgnum, const char *destroom, char *cret)
 979 {
 980         register int ret;
 981         char *aaa;
 982
 983         if (!cret) return -2;
 984         if (!destroom) return -2;
 985         if (!msgnum) return -2;
 986
 987         aaa = (char *)malloc(strlen(destroom) + 28);
 988         if (!aaa) return -1;
 989
 990         sprintf(aaa, "MOVE %ld|%s|%d", msgnum, destroom, copy);
 991         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
 992         free(aaa);
 993         return ret;
 994 }
 995
 996
 997 /* KILL */
 998 int CtdlIPCDeleteRoom(CtdlIPC *ipc, int for_real, char *cret)
 999 {
1000         char aaa[64];
1001
1002         if (!cret) return -2;
1003
1004         sprintf(aaa, "KILL %d", for_real);
1005         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1006 }
1007
1008
1009 /* CRE8 */
1010 int CtdlIPCCreateRoom(CtdlIPC *ipc, int for_real, const char *roomname, int type,
1011                 const char *password, int floor, char *cret)
1012 {
1013         register int ret;
1014         char *aaa;
1015
1016         if (!cret) return -2;
1017         if (!roomname) return -2;
1018
1019         if (password) {
1020                 aaa = (char *)malloc(strlen(roomname) + strlen(password) + 40);
1021                 if (!aaa) return -1;
1022                 sprintf(aaa, "CRE8 %d|%s|%d|%s|%d", for_real, roomname, type,
1023                                 password, floor);
1024         } else {
1025                 aaa = (char *)malloc(strlen(roomname) + 40);
1026                 if (!aaa) return -1;
1027                 sprintf(aaa, "CRE8 %d|%s|%d||%d", for_real, roomname, type,
1028                                 floor);
1029         }
1030         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1031         free(aaa);
1032         return ret;
1033 }
1034
1035
1036 /* FORG */
1037 int CtdlIPCForgetRoom(CtdlIPC *ipc, char *cret)
1038 {
1039         if (!cret) return -2;
1040
1041         return CtdlIPCGenericCommand(ipc, "FORG", NULL, 0, NULL, NULL, cret);
1042 }
1043
1044
1045 /* MESG */
1046 int CtdlIPCSystemMessage(CtdlIPC *ipc, const char *message, char **mret, char *cret)
1047 {
1048         register int ret;
1049         char *aaa;
1050         size_t bytes;
1051
1052         if (!cret) return -2;
1053         if (!mret) return -2;
1054         if (*mret) return -2;
1055         if (!message) return -2;
1056
1057         aaa = (char *)malloc(strlen(message) + 6);
1058         if (!aaa) return -1;
1059
1060         sprintf(aaa, "MESG %s", message);
1061         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, mret, &bytes, cret);
1062         free(aaa);
1063         return ret;
1064 }
1065
1066
1067 /* GNUR */
1068 int CtdlIPCNextUnvalidatedUser(CtdlIPC *ipc, char *cret)
1069 {
1070         if (!cret) return -2;
1071
1072         return CtdlIPCGenericCommand(ipc, "GNUR", NULL, 0, NULL, NULL, cret);
1073 }
1074
1075
1076 /* GREG */
1077 int CtdlIPCGetUserRegistration(CtdlIPC *ipc, const char *username, char **rret, char *cret)
1078 {
1079         register int ret;
1080         char *aaa;
1081         size_t bytes;
1082
1083         if (!cret) return -2;
1084         if (!rret) return -2;
1085         if (*rret) return -2;
1086
1087         if (username)
1088                 aaa = (char *)malloc(strlen(username) + 6);
1089         else
1090                 aaa = (char *)malloc(12);
1091         if (!aaa) return -1;
1092
1093         if (username)
1094                 sprintf(aaa, "GREG %s", username);
1095         else
1096                 sprintf(aaa, "GREG _SELF_");
1097         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, rret, &bytes, cret);
1098         free(aaa);
1099         return ret;
1100 }
1101
1102
1103 /* VALI */
1104 int CtdlIPCValidateUser(CtdlIPC *ipc, const char *username, int axlevel, char *cret)
1105 {
1106         register int ret;
1107         char *aaa;
1108
1109         if (!cret) return -2;
1110         if (!username) return -2;
1111         if (axlevel < AxDeleted || axlevel > AxAideU) return -2;
1112
1113         aaa = (char *)malloc(strlen(username) + 17);
1114         if (!aaa) return -1;
1115
1116         sprintf(aaa, "VALI %s|%d", username, axlevel);
1117         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1118         free(aaa);
1119         return ret;
1120 }
1121
1122
1123 /* EINF */
1124 int CtdlIPCSetRoomInfo(CtdlIPC *ipc, int for_real, const char *info, char *cret)
1125 {
1126         char aaa[64];
1127
1128         if (!cret) return -1;
1129         if (!info) return -1;
1130
1131         sprintf(aaa, "EINF %d", for_real);
1132         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1133 }
1134
1135
1136 /* LIST */
1137 int CtdlIPCUserListing(CtdlIPC *ipc, char *searchstring, char **listing, char *cret)
1138 {
1139         size_t bytes;
1140         char *cmd;
1141         int ret;
1142
1143         if (!cret) return -1;
1144         if (!listing) return -1;
1145         if (*listing) return -1;
1146         if (!searchstring) return -1;
1147
1148         cmd = malloc(strlen(searchstring) + 10);
1149         sprintf(cmd, "LIST %s", searchstring);
1150
1151         ret = CtdlIPCGenericCommand(ipc, cmd, NULL, 0, listing, &bytes, cret);
1152         free(cmd);
1153         return(ret);
1154 }
1155
1156
1157 /* REGI */
1158 int CtdlIPCSetRegistration(CtdlIPC *ipc, const char *info, char *cret)
1159 {
1160         if (!cret) return -1;
1161         if (!info) return -1;
1162
1163         return CtdlIPCGenericCommand(ipc, "REGI", info, strlen(info),
1164                         NULL, NULL, cret);
1165 }
1166
1167
1168 /* CHEK */
1169 int CtdlIPCMiscCheck(CtdlIPC *ipc, struct ctdlipcmisc *chek, char *cret)
1170 {
1171         register int ret;
1172
1173         if (!cret) return -1;
1174         if (!chek) return -1;
1175
1176         ret = CtdlIPCGenericCommand(ipc, "CHEK", NULL, 0, NULL, NULL, cret);
1177         if (ret / 100 == 2) {
1178                 chek->newmail = extract_long(cret, 0);
1179                 chek->needregis = extract_int(cret, 1);
1180                 chek->needvalid = extract_int(cret, 2);
1181         }
1182         return ret;
1183 }
1184
1185
1186 /* DELF */
1187 int CtdlIPCDeleteFile(CtdlIPC *ipc, const char *filename, char *cret)
1188 {
1189         register int ret;
1190         char *aaa;
1191
1192         if (!cret) return -2;
1193         if (!filename) return -2;
1194
1195         aaa = (char *)malloc(strlen(filename) + 6);
1196         if (!aaa) return -1;
1197
1198         sprintf(aaa, "DELF %s", filename);
1199         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1200         free(aaa);
1201         return ret;
1202 }
1203
1204
1205 /* MOVF */
1206 int CtdlIPCMoveFile(CtdlIPC *ipc, const char *filename, const char *destroom, char *cret)
1207 {
1208         register int ret;
1209         char *aaa;
1210
1211         if (!cret) return -2;
1212         if (!filename) return -2;
1213         if (!destroom) return -2;
1214
1215         aaa = (char *)malloc(strlen(filename) + strlen(destroom) + 7);
1216         if (!aaa) return -1;
1217
1218         sprintf(aaa, "MOVF %s|%s", filename, destroom);
1219         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1220         free(aaa);
1221         return ret;
1222 }
1223
1224
1225 /* RWHO */
1226 int CtdlIPCOnlineUsers(CtdlIPC *ipc, char **listing, time_t *stamp, char *cret)
1227 {
1228         register int ret;
1229         size_t bytes;
1230
1231         if (!cret) return -1;
1232         if (!listing) return -1;
1233         if (*listing) return -1;
1234
1235         *stamp = CtdlIPCServerTime(ipc, cret);
1236         if (!*stamp)
1237                 *stamp = time(NULL);
1238         ret = CtdlIPCGenericCommand(ipc, "RWHO", NULL, 0, listing, &bytes, cret);
1239         return ret;
1240 }
1241
1242
1243 /* OPEN */
1244 int CtdlIPCFileDownload(CtdlIPC *ipc, const char *filename, void **buf,
1245                 size_t resume,
1246                 void (*progress_gauge_callback)
1247                         (CtdlIPC*, unsigned long, unsigned long),
1248                 char *cret)
1249 {
1250         register int ret;
1251         size_t bytes;
1252         time_t last_mod;
1253         char mimetype[SIZ];
1254         char *aaa;
1255
1256         if (!cret) return -2;
1257         if (!filename) return -2;
1258         if (!buf) return -2;
1259         if (*buf) return -2;
1260         if (ipc->downloading) return -2;
1261
1262         aaa = (char *)malloc(strlen(filename) + 6);
1263         if (!aaa) return -1;
1264
1265         sprintf(aaa, "OPEN %s", filename);
1266         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1267         free(aaa);
1268         if (ret / 100 == 2) {
1269                 ipc->downloading = 1;
1270                 bytes = extract_long(cret, 0);
1271                 last_mod = extract_int(cret, 1);
1272                 extract_token(mimetype, cret, 2, '|', sizeof mimetype);
1273
1274                 ret = CtdlIPCReadDownload(ipc, buf, bytes, resume,
1275                                         progress_gauge_callback, cret);
1276                 /*
1277                 ret = CtdlIPCHighSpeedReadDownload(ipc, buf, bytes, resume,
1278                                         progress_gauge_callback, cret);
1279                 */
1280
1281                 ret = CtdlIPCEndDownload(ipc, cret);
1282                 if (ret / 100 == 2)
1283                         sprintf(cret, "%d|%ld|%s|%s", (int)bytes, last_mod,
1284                                         filename, mimetype);
1285         }
1286         return ret;
1287 }
1288
1289
1290 /* OPNA */
1291 int CtdlIPCAttachmentDownload(CtdlIPC *ipc, long msgnum, const char *part,
1292                 void **buf,
1293                 void (*progress_gauge_callback)
1294                         (CtdlIPC*, unsigned long, unsigned long),
1295                 char *cret)
1296 {
1297         register int ret;
1298         size_t bytes;
1299         time_t last_mod;
1300         char filename[SIZ];
1301         char mimetype[SIZ];
1302         char aaa[SIZ];
1303
1304         if (!cret) return -2;
1305         if (!buf) return -2;
1306         if (*buf) return -2;
1307         if (!part) return -2;
1308         if (!msgnum) return -2;
1309         if (ipc->downloading) return -2;
1310
1311         sprintf(aaa, "OPNA %ld|%s", msgnum, part);
1312         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1313         if (ret / 100 == 2) {
1314                 ipc->downloading = 1;
1315                 bytes = extract_long(cret, 0);
1316                 last_mod = extract_int(cret, 1);
1317                 extract_token(filename, cret, 2, '|', sizeof filename);
1318                 extract_token(mimetype, cret, 3, '|', sizeof mimetype);
1319                 /* ret = CtdlIPCReadDownload(ipc, buf, bytes, 0, progress_gauge_callback, cret); */
1320                 ret = CtdlIPCHighSpeedReadDownload(ipc, buf, bytes, 0, progress_gauge_callback, cret);
1321                 ret = CtdlIPCEndDownload(ipc, cret);
1322                 if (ret / 100 == 2)
1323                         sprintf(cret, "%d|%ld|%s|%s", (int)bytes, last_mod,
1324                                         filename, mimetype);
1325         }
1326         return ret;
1327 }
1328
1329
1330 /* OIMG */
1331 int CtdlIPCImageDownload(CtdlIPC *ipc, const char *filename, void **buf,
1332                 void (*progress_gauge_callback)
1333                         (CtdlIPC*, unsigned long, unsigned long),
1334                 char *cret)
1335 {
1336         register int ret;
1337         size_t bytes;
1338         time_t last_mod;
1339         char mimetype[SIZ];
1340         char *aaa;
1341
1342         if (!cret) return -1;
1343         if (!buf) return -1;
1344         if (*buf) return -1;
1345         if (!filename) return -1;
1346         if (ipc->downloading) return -1;
1347
1348         aaa = (char *)malloc(strlen(filename) + 6);
1349         if (!aaa) return -1;
1350
1351         sprintf(aaa, "OIMG %s", filename);
1352         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1353         free(aaa);
1354         if (ret / 100 == 2) {
1355                 ipc->downloading = 1;
1356                 bytes = extract_long(cret, 0);
1357                 last_mod = extract_int(cret, 1);
1358                 extract_token(mimetype, cret, 2, '|', sizeof mimetype);
1359 /*              ret = CtdlIPCReadDownload(ipc, buf, bytes, 0, progress_gauge_callback, cret); */
1360                 ret = CtdlIPCHighSpeedReadDownload(ipc, buf, bytes, 0, progress_gauge_callback, cret);
1361                 ret = CtdlIPCEndDownload(ipc, cret);
1362                 if (ret / 100 == 2)
1363                         sprintf(cret, "%d|%ld|%s|%s", (int)bytes, last_mod,
1364                                         filename, mimetype);
1365         }
1366         return ret;
1367 }
1368
1369
1370 /* UOPN */
1371 int CtdlIPCFileUpload(CtdlIPC *ipc, const char *save_as, const char *comment,
1372                 const char *path,
1373                 void (*progress_gauge_callback)
1374                         (CtdlIPC*, unsigned long, unsigned long),
1375                 char *cret)
1376 {
1377         register int ret;
1378         char *aaa;
1379         FILE *uploadFP;
1380         char MimeTestBuf[64];
1381         const char *MimeType;
1382         long len;
1383
1384         if (!cret) return -1;
1385         if (!save_as) return -1;
1386         if (!comment) return -1;
1387         if (!path) return -1;
1388         if (!*path) return -1;
1389         if (ipc->uploading) return -1;
1390
1391         uploadFP = fopen(path, "r");
1392         if (!uploadFP) return -2;
1393
1394         len = fread(&MimeTestBuf[0], 1, 64, uploadFP);
1395         rewind (uploadFP);
1396         if (len < 0)
1397                 return -3;
1398
1399         MimeType = GuessMimeType(&MimeTestBuf[0], len);
1400         aaa = (char *)malloc(strlen(save_as) + strlen(comment) + 7);
1401         if (!aaa) return -1;
1402
1403         sprintf(aaa, "UOPN %s|%s|%s", save_as, MimeType,  comment);
1404         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1405         free(aaa);
1406         if (ret / 100 == 2) {
1407                 ipc->uploading = 1;
1408                 ret = CtdlIPCWriteUpload(ipc, uploadFP, progress_gauge_callback, cret);
1409                 ret = CtdlIPCEndUpload(ipc, (ret == -2 ? 1 : 0), cret);
1410                 ipc->uploading = 0;
1411         }
1412         return ret;
1413 }
1414
1415
1416 /* UIMG */
1417 int CtdlIPCImageUpload(CtdlIPC *ipc, int for_real, const char *path,
1418                 const char *save_as,
1419                 void (*progress_gauge_callback)
1420                         (CtdlIPC*, unsigned long, unsigned long),
1421                 char *cret)
1422 {
1423         register int ret;
1424         FILE *uploadFP;
1425         char *aaa;
1426         char MimeTestBuf[64];
1427         const char *MimeType;
1428         long len;
1429
1430         if (!cret) return -1;
1431         if (!save_as) return -1;
1432         if (!path && for_real) return -1;
1433         if (!*path && for_real) return -1;
1434         if (ipc->uploading) return -1;
1435
1436         aaa = (char *)malloc(strlen(save_as) + 17);
1437         if (!aaa) return -1;
1438
1439         uploadFP = fopen(path, "r");
1440         if (!uploadFP) return -2;
1441
1442         len = fread(&MimeTestBuf[0], 1, 64, uploadFP);
1443         rewind (uploadFP);
1444         if (len < 0)
1445                 return -3;
1446         MimeType = GuessMimeType(&MimeTestBuf[0], 64);
1447
1448         sprintf(aaa, "UIMG %d|%s|%s", for_real, MimeType, save_as);
1449         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1450         free(aaa);
1451         if (ret / 100 == 2 && for_real) {
1452                 ipc->uploading = 1;
1453                 ret = CtdlIPCWriteUpload(ipc, uploadFP, progress_gauge_callback, cret);
1454                 ret = CtdlIPCEndUpload(ipc, (ret == -2 ? 1 : 0), cret);
1455                 ipc->uploading = 0;
1456         }
1457         return ret;
1458 }
1459
1460
1461 /* QUSR */
1462 int CtdlIPCQueryUsername(CtdlIPC *ipc, const char *username, char *cret)
1463 {
1464         register int ret;
1465         char *aaa;
1466
1467         if (!cret) return -2;
1468         if (!username) return -2;
1469
1470         aaa = (char *)malloc(strlen(username) + 6);
1471         if (!aaa) return -1;
1472
1473         sprintf(aaa, "QUSR %s", username);
1474         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1475         free(aaa);
1476         return ret;
1477 }
1478
1479
1480 /* LFLR */
1481 int CtdlIPCFloorListing(CtdlIPC *ipc, char **listing, char *cret)
1482 {
1483         size_t bytes;
1484
1485         if (!cret) return -2;
1486         if (!listing) return -2;
1487         if (*listing) return -2;
1488
1489         return CtdlIPCGenericCommand(ipc, "LFLR", NULL, 0, listing, &bytes, cret);
1490 }
1491
1492
1493 /* CFLR */
1494 int CtdlIPCCreateFloor(CtdlIPC *ipc, int for_real, const char *name, char *cret)
1495 {
1496         register int ret;
1497         char aaa[SIZ];
1498
1499         if (!cret) return -2;
1500         if (!name) return -2;
1501
1502         sprintf(aaa, "CFLR %s|%d", name, for_real);
1503         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1504         return ret;
1505 }
1506
1507
1508 /* KFLR */
1509 int CtdlIPCDeleteFloor(CtdlIPC *ipc, int for_real, int floornum, char *cret)
1510 {
1511         char aaa[SIZ];
1512
1513         if (!cret) return -1;
1514         if (floornum < 0) return -1;
1515
1516         sprintf(aaa, "KFLR %d|%d", floornum, for_real);
1517         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1518 }
1519
1520
1521 /* EFLR */
1522 int CtdlIPCEditFloor(CtdlIPC *ipc, int floornum, const char *floorname, char *cret)
1523 {
1524         register int ret;
1525         char aaa[SIZ];
1526
1527         if (!cret) return -2;
1528         if (!floorname) return -2;
1529         if (floornum < 0) return -2;
1530
1531         sprintf(aaa, "EFLR %d|%s", floornum, floorname);
1532         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1533         return ret;
1534 }
1535
1536
1537 /*
1538  * IDEN
1539  *
1540  * You only need to fill out hostname, the defaults will be used if any of the
1541  * other fields are not set properly.
1542  */
1543 int CtdlIPCIdentifySoftware(CtdlIPC *ipc, int developerid, int clientid,
1544                 int revision, const char *software_name, const char *hostname,
1545                 char *cret)
1546 {
1547         register int ret;
1548         char *aaa;
1549
1550         if (developerid < 0 || clientid < 0 || revision < 0 ||
1551             !software_name) {
1552                 developerid = 8;
1553                 clientid = 0;
1554                 revision = REV_LEVEL - 600;
1555                 software_name = "Citadel (libcitadel)";
1556         }
1557         if (!hostname) return -2;
1558
1559         aaa = (char *)malloc(strlen(software_name) + strlen(hostname) + 29);
1560         if (!aaa) return -1;
1561
1562         sprintf(aaa, "IDEN %d|%d|%d|%s|%s", developerid, clientid,
1563                         revision, software_name, hostname);
1564         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1565         free(aaa);
1566         return ret;
1567 }
1568
1569
1570 /* SEXP */
1571 int CtdlIPCSendInstantMessage(CtdlIPC *ipc, const char *username, const char *text,
1572                 char *cret)
1573 {
1574         register int ret;
1575         char *aaa;
1576
1577         if (!cret) return -2;
1578         if (!username) return -2;
1579
1580         aaa = (char *)malloc(strlen(username) + 8);
1581         if (!aaa) return -1;
1582
1583         if (text) {
1584                 sprintf(aaa, "SEXP %s|-", username);
1585                 ret = CtdlIPCGenericCommand(ipc, aaa, text, strlen(text),
1586                                 NULL, NULL, cret);
1587         } else {
1588                 sprintf(aaa, "SEXP %s||", username);
1589                 ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1590         }
1591         free(aaa);
1592         return ret;
1593 }
1594
1595
1596 /* GEXP */
1597 int CtdlIPCGetInstantMessage(CtdlIPC *ipc, char **listing, char *cret)
1598 {
1599         size_t bytes;
1600
1601         if (!cret) return -2;
1602         if (!listing) return -2;
1603         if (*listing) return -2;
1604
1605         return CtdlIPCGenericCommand(ipc, "GEXP", NULL, 0, listing, &bytes, cret);
1606 }
1607
1608
1609 /* DEXP */
1610 /* mode is 0 = enable, 1 = disable, 2 = status */
1611 int CtdlIPCEnableInstantMessageReceipt(CtdlIPC *ipc, int mode, char *cret)
1612 {
1613         char aaa[64];
1614
1615         if (!cret) return -2;
1616
1617         sprintf(aaa, "DEXP %d", mode);
1618         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1619 }
1620
1621
1622 /* EBIO */
1623 int CtdlIPCSetBio(CtdlIPC *ipc, char *bio, char *cret)
1624 {
1625         if (!cret) return -2;
1626         if (!bio) return -2;
1627
1628         return CtdlIPCGenericCommand(ipc, "EBIO", bio, strlen(bio),
1629                         NULL, NULL, cret);
1630 }
1631
1632
1633 /* RBIO */
1634 int CtdlIPCGetBio(CtdlIPC *ipc, const char *username, char **listing, char *cret)
1635 {
1636         register int ret;
1637         size_t bytes;
1638         char *aaa;
1639
1640         if (!cret) return -2;
1641         if (!username) return -2;
1642         if (!listing) return -2;
1643         if (*listing) return -2;
1644
1645         aaa = (char *)malloc(strlen(username) + 6);
1646         if (!aaa) return -1;
1647
1648         sprintf(aaa, "RBIO %s", username);
1649         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, listing, &bytes, cret);
1650         free(aaa);
1651         return ret;
1652 }
1653
1654
1655 /* LBIO */
1656 int CtdlIPCListUsersWithBios(CtdlIPC *ipc, char **listing, char *cret)
1657 {
1658         size_t bytes;
1659
1660         if (!cret) return -2;
1661         if (!listing) return -2;
1662         if (*listing) return -2;
1663
1664         return CtdlIPCGenericCommand(ipc, "LBIO", NULL, 0, listing, &bytes, cret);
1665 }
1666
1667
1668 /* STEL */
1669 int CtdlIPCStealthMode(CtdlIPC *ipc, int mode, char *cret)
1670 {
1671         char aaa[64];
1672
1673         if (!cret) return -1;
1674
1675         sprintf(aaa, "STEL %d", mode ? 1 : 0);
1676         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1677 }
1678
1679
1680 /* TERM */
1681 int CtdlIPCTerminateSession(CtdlIPC *ipc, int sid, char *cret)
1682 {
1683         char aaa[64];
1684
1685         if (!cret) return -1;
1686
1687         sprintf(aaa, "TERM %d", sid);
1688         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1689 }
1690
1691
1692 /* DOWN */
1693 int CtdlIPCTerminateServerNow(CtdlIPC *ipc, char *cret)
1694 {
1695         if (!cret) return -1;
1696
1697         return CtdlIPCGenericCommand(ipc, "DOWN", NULL, 0, NULL, NULL, cret);
1698 }
1699
1700
1701 /* SCDN */
1702 int CtdlIPCTerminateServerScheduled(CtdlIPC *ipc, int mode, char *cret)
1703 {
1704         char aaa[16];
1705
1706         if (!cret) return -1;
1707
1708         sprintf(aaa, "SCDN %d", mode ? 1 : 0);
1709         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1710 }
1711
1712
1713 /* EMSG */
1714 int CtdlIPCEnterSystemMessage(CtdlIPC *ipc, const char *filename, const char *text,
1715                 char *cret)
1716 {
1717         register int ret;
1718         char *aaa;
1719
1720         if (!cret) return -2;
1721         if (!text) return -2;
1722         if (!filename) return -2;
1723
1724         aaa = (char *)malloc(strlen(filename) + 6);
1725         if (!aaa) return -1;
1726
1727         sprintf(aaa, "EMSG %s", filename);
1728         ret = CtdlIPCGenericCommand(ipc, aaa, text, strlen(text), NULL, NULL, cret);
1729         free(aaa);
1730         return ret;
1731 }
1732
1733
1734 /* HCHG */
1735 int CtdlIPCChangeHostname(CtdlIPC *ipc, const char *hostname, char *cret)
1736 {
1737         register int ret;
1738         char *aaa;
1739
1740         if (!cret) return -2;
1741         if (!hostname) return -2;
1742
1743         aaa = (char *)malloc(strlen(hostname) + 6);
1744         if (!aaa) return -1;
1745
1746         sprintf(aaa, "HCHG %s", hostname);
1747         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1748         free(aaa);
1749         return ret;
1750 }
1751
1752
1753 /* RCHG */
1754 int CtdlIPCChangeRoomname(CtdlIPC *ipc, const char *roomname, char *cret)
1755 {
1756         register int ret;
1757         char *aaa;
1758
1759         if (!cret) return -2;
1760         if (!roomname) return -2;
1761
1762         aaa = (char *)malloc(strlen(roomname) + 6);
1763         if (!aaa) return -1;
1764
1765         sprintf(aaa, "RCHG %s", roomname);
1766         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1767         free(aaa);
1768         return ret;
1769 }
1770
1771
1772 /* UCHG */
1773 int CtdlIPCChangeUsername(CtdlIPC *ipc, const char *username, char *cret)
1774 {
1775         register int ret;
1776         char *aaa;
1777
1778         if (!cret) return -2;
1779         if (!username) return -2;
1780
1781         aaa = (char *)malloc(strlen(username) + 6);
1782         if (!aaa) return -1;
1783
1784         sprintf(aaa, "UCHG %s", username);
1785         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1786         free(aaa);
1787         return ret;
1788 }
1789
1790
1791 /* TIME */
1792 /* This function returns the actual server time reported, or 0 if error */
1793 time_t CtdlIPCServerTime(CtdlIPC *ipc, char *cret)
1794 {
1795         register time_t tret;
1796         register int ret;
1797
1798         ret = CtdlIPCGenericCommand(ipc, "TIME", NULL, 0, NULL, NULL, cret);
1799         if (ret / 100 == 2) {
1800                 tret = extract_long(cret, 0);
1801         } else {
1802                 tret = 0L;
1803         }
1804         return tret;
1805 }
1806
1807
1808 /* AGUP */
1809 int CtdlIPCAideGetUserParameters(CtdlIPC *ipc, const char *who,
1810                                  struct ctdluser **uret, char *cret)
1811 {
1812         register int ret;
1813         char aaa[SIZ];
1814
1815         if (!cret) return -2;
1816         if (!uret) return -2;
1817         if (!*uret) *uret = (struct ctdluser *)calloc(1, sizeof(struct ctdluser));
1818         if (!*uret) return -1;
1819
1820         sprintf(aaa, "AGUP %s", who);
1821         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1822
1823         if (ret / 100 == 2) {
1824                 extract_token(uret[0]->fullname, cret, 0, '|', sizeof uret[0]->fullname);
1825                 extract_token(uret[0]->password, cret, 1, '|', sizeof uret[0]->password);
1826                 uret[0]->flags = extract_int(cret, 2);
1827                 uret[0]->timescalled = extract_long(cret, 3);
1828                 uret[0]->posted = extract_long(cret, 4);
1829                 uret[0]->axlevel = extract_int(cret, 5);
1830                 uret[0]->usernum = extract_long(cret, 6);
1831                 uret[0]->lastcall = extract_long(cret, 7);
1832                 uret[0]->USuserpurge = extract_int(cret, 8);
1833         }
1834         return ret;
1835 }
1836
1837
1838 /* ASUP */
1839 int CtdlIPCAideSetUserParameters(CtdlIPC *ipc, const struct ctdluser *uret, char *cret)
1840 {
1841         register int ret;
1842         char *aaa;
1843
1844         if (!cret) return -2;
1845         if (!uret) return -2;
1846
1847         aaa = (char *)malloc(strlen(uret->fullname) + strlen(uret->password) + 84);
1848         if (!aaa) return -1;
1849
1850         sprintf(aaa, "ASUP %s|%s|%d|%ld|%ld|%d|%ld|%ld|%d",
1851                         uret->fullname, uret->password, uret->flags,
1852                         uret->timescalled, uret->posted, uret->axlevel,
1853                         uret->usernum, uret->lastcall, uret->USuserpurge);
1854         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1855         free(aaa);
1856         return ret;
1857 }
1858
1859
1860 /* GPEX */
1861 /* which is 0 = room, 1 = floor, 2 = site, 3 = default for mailboxes */
1862 /* caller must free the struct ExpirePolicy */
1863 int CtdlIPCGetMessageExpirationPolicy(CtdlIPC *ipc, GPEXWhichPolicy which,
1864                 struct ExpirePolicy **policy, char *cret)
1865 {
1866         static char *proto[] = {
1867                 strof(roompolicy),
1868                 strof(floorpolicy),
1869                 strof(sitepolicy),
1870                 strof(mailboxespolicy)
1871         };
1872         char cmd[256];
1873         register int ret;
1874
1875         if (!cret) return -2;
1876         if (!policy) return -2;
1877         if (!*policy) *policy = (struct ExpirePolicy *)calloc(1, sizeof(struct ExpirePolicy));
1878         if (!*policy) return -1;
1879         if (which < 0 || which > 3) return -2;
1880
1881         sprintf(cmd, "GPEX %s", proto[which]);
1882         ret = CtdlIPCGenericCommand(ipc, cmd, NULL, 0, NULL, NULL, cret);
1883         if (ret / 100 == 2) {
1884                 policy[0]->expire_mode = extract_int(cret, 0);
1885                 policy[0]->expire_value = extract_int(cret, 1);
1886         }
1887         return ret;
1888 }
1889
1890
1891 /* SPEX */
1892 /* which is 0 = room, 1 = floor, 2 = site, 3 = default for mailboxes */
1893 /* policy is 0 = inherit, 1 = no purge, 2 = by count, 3 = by age (days) */
1894 int CtdlIPCSetMessageExpirationPolicy(CtdlIPC *ipc, int which,
1895                 struct ExpirePolicy *policy, char *cret)
1896 {
1897         char aaa[38];
1898         char *whichvals[] = { "room", "floor", "site", "mailboxes" };
1899
1900         if (!cret) return -2;
1901         if (which < 0 || which > 3) return -2;
1902         if (!policy) return -2;
1903         if (policy->expire_mode < 0 || policy->expire_mode > 3) return -2;
1904         if (policy->expire_mode >= 2 && policy->expire_value < 1) return -2;
1905
1906         sprintf(aaa, "SPEX %s|%d|%d", whichvals[which],
1907                         policy->expire_mode, policy->expire_value);
1908         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
1909 }
1910
1911
1912 /* CONF GET */
1913 int CtdlIPCGetSystemConfig(CtdlIPC *ipc, char **listing, char *cret)
1914 {
1915         size_t bytes;
1916
1917         if (!cret) return -2;
1918         if (!listing) return -2;
1919         if (*listing) return -2;
1920
1921         return CtdlIPCGenericCommand(ipc, "CONF GET", NULL, 0,
1922                         listing, &bytes, cret);
1923 }
1924
1925
1926 /* CONF SET */
1927 int CtdlIPCSetSystemConfig(CtdlIPC *ipc, const char *listing, char *cret)
1928 {
1929         if (!cret) return -2;
1930         if (!listing) return -2;
1931
1932         return CtdlIPCGenericCommand(ipc, "CONF SET", listing, strlen(listing),
1933                         NULL, NULL, cret);
1934 }
1935
1936
1937 /* CONF GETSYS */
1938 int CtdlIPCGetSystemConfigByType(CtdlIPC *ipc, const char *mimetype,
1939                 char **listing, char *cret)
1940 {
1941         register int ret;
1942         char *aaa;
1943         size_t bytes;
1944
1945         if (!cret) return -2;
1946         if (!mimetype) return -2;
1947         if (!listing) return -2;
1948         if (*listing) return -2;
1949
1950         aaa = malloc(strlen(mimetype) + 13);
1951         if (!aaa) return -1;
1952         sprintf(aaa, "CONF GETSYS|%s", mimetype);
1953         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0,
1954                         listing, &bytes, cret);
1955     free(aaa);
1956     return ret;
1957 }
1958
1959
1960 /* CONF PUTSYS */
1961 int CtdlIPCSetSystemConfigByType(CtdlIPC *ipc, const char *mimetype,
1962                const char *listing, char *cret)
1963 {
1964     register int ret;
1965         char *aaa;
1966
1967         if (!cret) return -2;
1968         if (!mimetype) return -2;
1969         if (!listing) return -2;
1970
1971         aaa = malloc(strlen(mimetype) + 13);
1972         if (!aaa) return -1;
1973         sprintf(aaa, "CONF PUTSYS|%s", mimetype);
1974         ret = CtdlIPCGenericCommand(ipc, aaa, listing, strlen(listing),
1975                         NULL, NULL, cret);
1976     free(aaa);
1977     return ret;
1978 }
1979
1980
1981 /* GNET */
1982 int CtdlIPCGetRoomNetworkConfig(CtdlIPC *ipc, char **listing, char *cret)
1983 {
1984         size_t bytes;
1985
1986         if (!cret) return -2;
1987         if (!listing) return -2;
1988         if (*listing) return -2;
1989
1990         return CtdlIPCGenericCommand(ipc, "GNET", NULL, 0,
1991                         listing, &bytes, cret);
1992 }
1993
1994
1995 /* SNET */
1996 int CtdlIPCSetRoomNetworkConfig(CtdlIPC *ipc, const char *listing, char *cret)
1997 {
1998         if (!cret) return -2;
1999         if (!listing) return -2;
2000
2001         return CtdlIPCGenericCommand(ipc, "SNET", listing, strlen(listing),
2002                         NULL, NULL, cret);
2003 }
2004
2005
2006 /* REQT */
2007 int CtdlIPCRequestClientLogout(CtdlIPC *ipc, int session, char *cret)
2008 {
2009         char aaa[64];
2010
2011         if (!cret) return -2;
2012         if (session < 0) return -2;
2013
2014         sprintf(aaa, "REQT %d", session);
2015         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
2016 }
2017
2018
2019 /* SEEN */
2020 int CtdlIPCSetMessageSeen(CtdlIPC *ipc, long msgnum, int seen, char *cret)
2021 {
2022         char aaa[27];
2023
2024         if (!cret) return -2;
2025         if (msgnum < 0) return -2;
2026
2027         sprintf(aaa, "SEEN %ld|%d", msgnum, seen ? 1 : 0);
2028         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
2029 }
2030
2031
2032 /* STLS */
2033 int CtdlIPCStartEncryption(CtdlIPC *ipc, char *cret)
2034 {
2035         int a;
2036         int r;
2037         char buf[SIZ];
2038
2039 #ifdef HAVE_OPENSSL
2040         SSL *temp_ssl;
2041
2042         /* New SSL object */
2043         temp_ssl = SSL_new(ssl_ctx);
2044         if (!temp_ssl) {
2045                 error_printf("SSL_new failed: %s\n",
2046                                 ERR_reason_error_string(ERR_get_error()));
2047                 return -2;
2048         }
2049         /* Pointless flag waving */
2050 #if SSLEAY_VERSION_NUMBER >= 0x0922
2051         SSL_set_session_id_context(temp_ssl, (const unsigned char*) "Citadel SID", 14);
2052 #endif
2053
2054         if (!access(EGD_POOL, F_OK))
2055                 RAND_egd(EGD_POOL);
2056
2057         if (!RAND_status()) {
2058                 error_printf("PRNG not properly seeded\n");
2059                 return -2;
2060         }
2061
2062         /* Associate network connection with SSL object */
2063         if (SSL_set_fd(temp_ssl, ipc->sock) < 1) {
2064                 error_printf("SSL_set_fd failed: %s\n",
2065                                 ERR_reason_error_string(ERR_get_error()));
2066                 return -2;
2067         }
2068
2069         if (status_hook != NULL)
2070                 status_hook("Requesting encryption...\r");
2071
2072         /* Ready to start SSL/TLS */
2073         /* Old code
2074         CtdlIPC_putline(ipc, "STLS");
2075         CtdlIPC_getline(ipc, buf);
2076         if (buf[0] != '2') {
2077                 error_printf("Server can't start TLS: %s\n", buf);
2078                 return 0;
2079         }
2080         */
2081         r = CtdlIPCGenericCommand(ipc,
2082                                   "STLS", NULL, 0, NULL, NULL, cret);
2083         if (r / 100 != 2) {
2084                 error_printf("Server can't start TLS: %s\n", buf);
2085                 endtls(temp_ssl);
2086                 return r;
2087         }
2088
2089         /* Do SSL/TLS handshake */
2090         if ((a = SSL_connect(temp_ssl)) < 1) {
2091                 error_printf("SSL_connect failed: %s\n",
2092                                 ERR_reason_error_string(ERR_get_error()));
2093                 endtls(temp_ssl);
2094                 return -2;
2095         }
2096         ipc->ssl = temp_ssl;
2097
2098         BIO_set_close(ipc->ssl->rbio, BIO_NOCLOSE);
2099         {
2100                 int bits, alg_bits;
2101
2102                 bits = SSL_CIPHER_get_bits(SSL_get_current_cipher(ipc->ssl), &alg_bits);
2103                 error_printf("Encrypting with %s cipher %s (%d of %d bits)\n",
2104                                 SSL_CIPHER_get_version(SSL_get_current_cipher(ipc->ssl)),
2105                                 SSL_CIPHER_get_name(SSL_get_current_cipher(ipc->ssl)),
2106                                 bits, alg_bits);
2107         }
2108         return r;
2109 #else
2110         return 0;
2111 #endif /* HAVE_OPENSSL */
2112 }
2113
2114
2115 #ifdef HAVE_OPENSSL
2116 static void endtls(SSL *ssl)
2117 {
2118         if (ssl) {
2119                 SSL_shutdown(ssl);
2120                 SSL_free(ssl);
2121         }
2122 }
2123 #endif
2124
2125
2126 /* QDIR */
2127 int CtdlIPCDirectoryLookup(CtdlIPC *ipc, const char *address, char *cret)
2128 {
2129     register int ret;
2130         char *aaa;
2131
2132         if (!address) return -2;
2133         if (!cret) return -2;
2134
2135         aaa = (char *)malloc(strlen(address) + 6);
2136         if (!aaa) return -1;
2137
2138         sprintf(aaa, "QDIR %s", address);
2139         ret = CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
2140     free(aaa);
2141     return ret;
2142 }
2143
2144
2145 /* IPGM */
2146 int CtdlIPCInternalProgram(CtdlIPC *ipc, int secret, char *cret)
2147 {
2148         char aaa[30];
2149
2150         if (!cret) return -2;
2151         sprintf(aaa, "IPGM %d", secret);
2152         return CtdlIPCGenericCommand(ipc, aaa, NULL, 0, NULL, NULL, cret);
2153 }
2154
2155
2156 /* FSCK */
2157 int CtdlIPCMessageBaseCheck(CtdlIPC *ipc, char **mret, char *cret)
2158 {
2159         size_t size = 0;
2160
2161         if (!cret) return -2;
2162         if (!mret) return -2;
2163         if (*mret) return -2;
2164
2165         return CtdlIPCGenericCommand(ipc, "FSCK", NULL, 0, mret, &size, cret);
2166 }
2167
2168
2169 /*
2170  * Not implemented:
2171  *
2172  * CHAT
2173  * ETLS
2174  * EXPI
2175  * GTLS
2176  * IGAB
2177  * MSG3
2178  * MSG4
2179  * NDOP
2180  * NETP
2181  * NUOP
2182  * SMTP
2183  */
2184
2185
2186 /* ************************************************************************** */
2187 /*             Stuff below this line is not for public consumption            */
2188 /* ************************************************************************** */
2189
2190
2191 INLINE void CtdlIPC_lock(CtdlIPC *ipc)
2192 {
2193         if (ipc->network_status_cb) ipc->network_status_cb(1);
2194 #ifdef THREADED_CLIENT
2195         pthread_mutex_lock(&(ipc->mutex));
2196 #endif
2197 }
2198
2199
2200 INLINE void CtdlIPC_unlock(CtdlIPC *ipc)
2201 {
2202 #ifdef THREADED_CLIENT
2203         pthread_mutex_unlock(&(ipc->mutex));
2204 #endif
2205         if (ipc->network_status_cb) ipc->network_status_cb(0);
2206 }
2207
2208
2209 /* Read a listing from the server up to 000.  Append to dest if it exists */
2210 char *CtdlIPCReadListing(CtdlIPC *ipc, char *dest)
2211 {
2212         size_t length = 0;
2213         size_t linelength;
2214         char *ret = NULL;
2215         char aaa[SIZ];
2216
2217         ret = dest;
2218         if (ret != NULL) {
2219                 length = strlen(ret);
2220         } else {
2221                 length = 0;
2222         }
2223
2224         while (CtdlIPC_getline(ipc, aaa), strcmp(aaa, "000")) {
2225                 linelength = strlen(aaa);
2226                 ret = (char *)realloc(ret, (size_t)(length + linelength + 2));
2227                 if (ret) {
2228                         strcpy(&ret[length], aaa);
2229                         length += linelength;
2230                         strcpy(&ret[length++], "\n");
2231                 }
2232         }
2233
2234         return(ret);
2235 }
2236
2237
2238 /* Send a listing to the server; generate the ending 000. */
2239 int CtdlIPCSendListing(CtdlIPC *ipc, const char *listing)
2240 {
2241         char *text;
2242
2243         text = (char *)malloc(strlen(listing) + 6);
2244         if (text) {
2245                 strcpy(text, listing);
2246                 while (text[strlen(text) - 1] == '\n')
2247                         text[strlen(text) - 1] = '\0';
2248                 strcat(text, "\n000");
2249                 CtdlIPC_putline(ipc, text);
2250                 free(text);
2251                 text = NULL;
2252         } else {
2253                 /* Malloc failed but we are committed to send */
2254                 /* This may result in extra blanks at the bottom */
2255                 CtdlIPC_putline(ipc, text);
2256                 CtdlIPC_putline(ipc, "000");
2257         }
2258         return 0;
2259 }
2260
2261
2262 /* Partial read of file from server */
2263 size_t CtdlIPCPartialRead(CtdlIPC *ipc, void **buf, size_t offset, size_t bytes, char *cret)
2264 {
2265         register size_t len = 0;
2266         char aaa[SIZ];
2267
2268         if (!buf) return 0;
2269         if (!cret) return 0;
2270         if (bytes < 1) return 0;
2271
2272         CtdlIPC_lock(ipc);
2273         sprintf(aaa, "READ %d|%d", (int)offset, (int)bytes);
2274         CtdlIPC_putline(ipc, aaa);
2275         CtdlIPC_getline(ipc, aaa);
2276         if (aaa[0] != '6')
2277                 strcpy(cret, &aaa[4]);
2278         else {
2279                 len = extract_long(&aaa[4], 0);
2280                 *buf = (void *)realloc(*buf, (size_t)(offset + len));
2281                 if (*buf) {
2282                         /* I know what I'm doing */
2283                         serv_read(ipc, ((char *)(*buf) + offset), len);
2284                 } else {
2285                         /* We have to read regardless */
2286                         serv_read(ipc, aaa, len);
2287                         len = 0;
2288                 }
2289         }
2290         CtdlIPC_unlock(ipc);
2291         return len;
2292 }
2293
2294
2295 /* CLOS */
2296 int CtdlIPCEndDownload(CtdlIPC *ipc, char *cret)
2297 {
2298         register int ret;
2299
2300         if (!cret) return -2;
2301         if (!ipc->downloading) return -2;
2302
2303         ret = CtdlIPCGenericCommand(ipc, "CLOS", NULL, 0, NULL, NULL, cret);
2304         if (ret / 100 == 2)
2305                 ipc->downloading = 0;
2306         return ret;
2307 }
2308
2309
2310 /* MSGP */
2311 int CtdlIPCSpecifyPreferredFormats(CtdlIPC *ipc, char *cret, char *formats) {
2312         register int ret;
2313         char cmd[SIZ];
2314
2315         snprintf(cmd, sizeof cmd, "MSGP %s", formats);
2316         ret = CtdlIPCGenericCommand(ipc, cmd, NULL, 0, NULL, NULL, cret);
2317         return ret;
2318 }
2319
2320
2321
2322 /* READ */
2323 int CtdlIPCReadDownload(CtdlIPC *ipc, void **buf, size_t bytes, size_t resume,
2324                 void (*progress_gauge_callback)
2325                         (CtdlIPC*, unsigned long, unsigned long),
2326                char *cret)
2327 {
2328         register size_t len;
2329
2330         if (!cret) return -1;
2331         if (!buf) return -1;
2332         if (*buf) return -1;
2333         if (!ipc->downloading) return -1;
2334
2335         len = resume;
2336         if (progress_gauge_callback)
2337                 progress_gauge_callback(ipc, len, bytes);
2338         while (len < bytes) {
2339                 register size_t block;
2340
2341                 block = CtdlIPCPartialRead(ipc, buf, len, 4096, cret);
2342                 if (block == 0) {
2343                         free(*buf);
2344                         return 0;
2345                 }
2346                 len += block;
2347                 if (progress_gauge_callback)
2348                         progress_gauge_callback(ipc, len, bytes);
2349         }
2350         return len;
2351 }
2352
2353 /* READ - pipelined */
2354 int CtdlIPCHighSpeedReadDownload(CtdlIPC *ipc, void **buf, size_t bytes,
2355                size_t resume,
2356                 void (*progress_gauge_callback)
2357                         (CtdlIPC*, unsigned long, unsigned long),
2358                char *cret)
2359 {
2360         register size_t len;
2361         register int calls;     /* How many calls in the pipeline */
2362         register int i;         /* iterator */
2363         char aaa[4096];
2364
2365         if (!cret) return -1;
2366         if (!buf) return -1;
2367         if (*buf) return -1;
2368         if (!ipc->downloading) return -1;
2369
2370         *buf = (void *)realloc(*buf, bytes - resume);
2371         if (!*buf) return -1;
2372
2373         len = 0;
2374         CtdlIPC_lock(ipc);
2375         if (progress_gauge_callback)
2376                 progress_gauge_callback(ipc, len, bytes);
2377
2378         /* How many calls will be in the pipeline? */
2379         calls = (bytes - resume) / 4096;
2380         if ((bytes - resume) % 4096) calls++;
2381
2382         /* Send all requests at once */
2383         for (i = 0; i < calls; i++) {
2384                 sprintf(aaa, "READ %d|4096", (int)(i * 4096 + resume) );
2385                 CtdlIPC_putline(ipc, aaa);
2386         }
2387
2388         /* Receive all responses at once */
2389         for (i = 0; i < calls; i++) {
2390                 CtdlIPC_getline(ipc, aaa);
2391                 if (aaa[0] != '6')
2392                         strcpy(cret, &aaa[4]);
2393                 else {
2394                         len = extract_long(&aaa[4], 0);
2395                         /* I know what I'm doing */
2396                         serv_read(ipc, ((char *)(*buf) + (i * 4096)), len);
2397                 }
2398                 if (progress_gauge_callback)
2399                         progress_gauge_callback(ipc, i * 4096 + len, bytes);
2400         }
2401         CtdlIPC_unlock(ipc);
2402         return len;
2403 }
2404
2405
2406 /* UCLS */
2407 int CtdlIPCEndUpload(CtdlIPC *ipc, int discard, char *cret)
2408 {
2409         register int ret;
2410         char cmd[8];
2411
2412         if (!cret) return -1;
2413         if (!ipc->uploading) return -1;
2414
2415         sprintf(cmd, "UCLS %d", discard ? 0 : 1);
2416         ret = CtdlIPCGenericCommand(ipc, cmd, NULL, 0, NULL, NULL, cret);
2417         ipc->uploading = 0;
2418         return ret;
2419 }
2420
2421
2422 /* WRIT */
2423 int CtdlIPCWriteUpload(CtdlIPC *ipc, FILE *uploadFP,
2424                 void (*progress_gauge_callback)
2425                         (CtdlIPC*, unsigned long, unsigned long),
2426                 char *cret)
2427 {
2428         register int ret = -1;
2429         register size_t offset = 0;
2430         size_t bytes;
2431         char aaa[SIZ];
2432         char buf[4096];
2433         FILE *fd = uploadFP;
2434         int ferr;
2435
2436         if (!cret) return -1;
2437
2438         fseek(fd, 0L, SEEK_END);
2439         bytes = ftell(fd);
2440         rewind(fd);
2441
2442         if (progress_gauge_callback)
2443                 progress_gauge_callback(ipc, 0, bytes);
2444
2445         while (offset < bytes) {
2446                 register size_t to_write;
2447
2448                 /* Read some data in */
2449                 to_write = fread(buf, 1, 4096, fd);
2450                 if (!to_write) {
2451                         if (feof(fd) || ferror(fd)) break;
2452                 }
2453                 sprintf(aaa, "WRIT %d", (int)to_write);
2454                 CtdlIPC_putline(ipc, aaa);
2455                 CtdlIPC_getline(ipc, aaa);
2456                 strcpy(cret, &aaa[4]);
2457                 ret = atoi(aaa);
2458                 if (aaa[0] == '7') {
2459                         to_write = extract_long(&aaa[4], 0);
2460
2461                         serv_write(ipc, buf, to_write);
2462                         offset += to_write;
2463                         if (progress_gauge_callback)
2464                                 progress_gauge_callback(ipc, offset, bytes);
2465                         /* Detect short reads and back up if needed */
2466                         /* offset will never be negative anyway */
2467                         fseek(fd, (signed)offset, SEEK_SET);
2468                 } else {
2469                         break;
2470                 }
2471         }
2472         if (progress_gauge_callback)
2473                 progress_gauge_callback(ipc, 1, 1);
2474         ferr = ferror(fd);
2475         fclose(fd);
2476         return (!ferr ? ret : -2);
2477 }
2478
2479
2480 /*
2481  * Generic command method.  This method should handle any server command
2482  * except for CHAT.  It takes the following arguments:
2483  *
2484  * ipc                  The server to speak with
2485  * command              Preformatted command to send to server
2486  * to_send              A text or binary file to send to server
2487  *                      (only sent if server requests it)
2488  * bytes_to_send        The number of bytes in to_send (required if
2489  *                      sending binary, optional if sending listing)
2490  * to_receive           Pointer to a NULL pointer, if the server
2491  *                      sends text or binary we will allocate memory
2492  *                      for the file and stuff it here
2493  * bytes_to_receive     If a file is received, we will store its
2494  *                      byte count here
2495  * proto_response       The protocol response.  Caller must provide
2496  *                      this buffer and ensure that it is at least
2497  *                      128 bytes in length.
2498  *
2499  * This function returns a number equal to the protocol response number,
2500  * -1 if an internal error occurred, -2 if caller provided bad values,
2501  * or 0 - the protocol response number if bad values were found during
2502  * the protocol exchange.
2503  * It stores the protocol response string (minus the number) in
2504  * protocol_response as described above.  Some commands send additional
2505  * data in this string.
2506  */
2507 int CtdlIPCGenericCommand(CtdlIPC *ipc,
2508                 const char *command, const char *to_send,
2509                 size_t bytes_to_send, char **to_receive,
2510                 size_t *bytes_to_receive, char *proto_response)
2511 {
2512         char buf[SIZ];
2513         register int ret;
2514         int watch_ssl = 0;
2515
2516         if (!command) return -2;
2517         if (!proto_response) return -2;
2518
2519 #ifdef HAVE_OPENSSL
2520         if (ipc->ssl) watch_ssl = 1;
2521 #endif
2522
2523         CtdlIPC_lock(ipc);
2524         CtdlIPC_putline(ipc, command);
2525         while (1) {
2526                 CtdlIPC_getline(ipc, proto_response);
2527                 if (proto_response[3] == '*')
2528                         instant_msgs = 1;
2529                 ret = atoi(proto_response);
2530                 strcpy(proto_response, &proto_response[4]);
2531                 switch (ret / 100) {
2532                 default:                        /* Unknown, punt */
2533                 case 2:                         /* OK */
2534                 case 3:                         /* MORE_DATA */
2535                 case 5:                         /* ERROR */
2536                         /* Don't need to do anything */
2537                         break;
2538                 case 1:                         /* LISTING_FOLLOWS */
2539                         if (to_receive && !*to_receive && bytes_to_receive) {
2540                                 *to_receive = CtdlIPCReadListing(ipc, NULL);
2541                         } else { /* Drain */
2542                                 while (CtdlIPC_getline(ipc, buf), strcmp(buf, "000")) ;
2543                                 ret = -ret;
2544                         }
2545                         break;
2546                 case 4:                         /* SEND_LISTING */
2547                         if (to_send) {
2548                                 CtdlIPCSendListing(ipc, to_send);
2549                         } else {
2550                                 /* No listing given, fake it */
2551                                 CtdlIPC_putline(ipc, "000");
2552                                 ret = -ret;
2553                         }
2554                         break;
2555                 case 6:                         /* BINARY_FOLLOWS */
2556                         if (to_receive && !*to_receive && bytes_to_receive) {
2557                                 *bytes_to_receive =
2558                                         extract_long(proto_response, 0);
2559                                 *to_receive = (char *)
2560                                         malloc((size_t)*bytes_to_receive);
2561                                 if (!*to_receive) {
2562                                         ret = -1;
2563                                 } else {
2564                                         serv_read(ipc, *to_receive,
2565                                                         *bytes_to_receive);
2566                                 }
2567                         } else {
2568                                 /* Drain */
2569                                 size_t drain;
2570
2571                                 drain = extract_long(proto_response, 0);
2572                                 while (drain > SIZ) {
2573                                         serv_read(ipc, buf, SIZ);
2574                                         drain -= SIZ;
2575                                 }
2576                                 serv_read(ipc, buf, drain);
2577                                 ret = -ret;
2578                         }
2579                         break;
2580                 case 7:                         /* SEND_BINARY */
2581                         if (to_send && bytes_to_send) {
2582                                 serv_write(ipc, to_send, bytes_to_send);
2583                         } else if (bytes_to_send) {
2584                                 /* Fake it, send nulls */
2585                                 size_t fake;
2586
2587                                 fake = bytes_to_send;
2588                                 memset(buf, '\0', SIZ);
2589                                 while (fake > SIZ) {
2590                                         serv_write(ipc, buf, SIZ);
2591                                         fake -= SIZ;
2592                                 }
2593                                 serv_write(ipc, buf, fake);
2594                                 ret = -ret;
2595                         } /* else who knows?  DANGER WILL ROBINSON */
2596                         break;
2597                 case 8:                         /* START_CHAT_MODE */
2598                         if (!strncasecmp(command, "CHAT", 4)) {
2599                                 /* Don't call chatmode with generic! */
2600                                 CtdlIPC_putline(ipc, "/quit");
2601                                 ret = -ret;
2602                         } else {
2603                                 /* In this mode we send then receive listing */
2604                                 if (to_send) {
2605                                         CtdlIPCSendListing(ipc, to_send);
2606                                 } else {
2607                                         /* No listing given, fake it */
2608                                         CtdlIPC_putline(ipc, "000");
2609                                         ret = -ret;
2610                                 }
2611                                 if (to_receive && !*to_receive
2612                                                 && bytes_to_receive) {
2613                                         *to_receive = CtdlIPCReadListing(ipc, NULL);
2614                                 } else { /* Drain */
2615                                         while (CtdlIPC_getline(ipc, buf),
2616                                                         strcmp(buf, "000")) ;
2617                                         ret = -ret;
2618                                 }
2619                         }
2620                         break;
2621                 case 9:                         /* ASYNC_MSG */
2622                         /* CtdlIPCDoAsync(ret, proto_response); */
2623                         free(CtdlIPCReadListing(ipc, NULL));    /* STUB FIXME */
2624                         break;
2625                 }
2626                 if (ret / 100 != 9)
2627                         break;
2628         }
2629         CtdlIPC_unlock(ipc);
2630         return ret;
2631 }
2632
2633
2634 static int connectsock(char *host, char *service, char *protocol, int defaultPort)
2635 {
2636         struct hostent *phe;
2637         struct servent *pse;
2638         struct protoent *ppe;
2639         struct sockaddr_in sin;
2640         int s, type;
2641
2642         memset(&sin, 0, sizeof(sin));
2643         sin.sin_family = AF_INET;
2644
2645         pse = getservbyname(service, protocol);
2646         if (pse != NULL) {
2647                 sin.sin_port = pse->s_port;
2648         }
2649         else if (atoi(service) > 0) {
2650                 sin.sin_port = htons(atoi(service));
2651         }
2652         else {
2653                 sin.sin_port = htons(defaultPort);
2654         }
2655         phe = gethostbyname(host);
2656         if (phe) {
2657                 memcpy(&sin.sin_addr, phe->h_addr, phe->h_length);
2658         } else if ((sin.sin_addr.s_addr = inet_addr(host)) == INADDR_NONE) {
2659                 return -1;
2660         }
2661         if ((ppe = getprotobyname(protocol)) == 0) {
2662                 return -1;
2663         }
2664         if (!strcmp(protocol, "udp")) {
2665                 type = SOCK_DGRAM;
2666         } else {
2667                 type = SOCK_STREAM;
2668         }
2669
2670         s = socket(PF_INET, type, ppe->p_proto);
2671         if (s < 0) {
2672                 return -1;
2673         }
2674
2675         if (connect(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
2676                 close(s);
2677                 return -1;
2678         }
2679
2680         return (s);
2681 }
2682
2683 static int uds_connectsock(int *isLocal, char *sockpath)
2684 {
2685         struct sockaddr_un addr;
2686         int s;
2687
2688         memset(&addr, 0, sizeof(addr));
2689         addr.sun_family = AF_UNIX;
2690         safestrncpy(addr.sun_path, sockpath, sizeof addr.sun_path);
2691
2692         s = socket(AF_UNIX, SOCK_STREAM, 0);
2693         if (s < 0) {
2694                 return -1;
2695         }
2696
2697         if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2698                 close(s);
2699                 return -1;
2700         }
2701
2702         *isLocal = 1;
2703         return s;
2704 }
2705
2706
2707 /*
2708  * input binary data from socket
2709  */
2710 static void serv_read(CtdlIPC *ipc, char *buf, unsigned int bytes)
2711 {
2712         unsigned int len, rlen;
2713
2714 #if defined(HAVE_OPENSSL)
2715         if (ipc->ssl) {
2716                 serv_read_ssl(ipc, buf, bytes);
2717                 return;
2718         }
2719 #endif
2720         len = 0;
2721         while (len < bytes) {
2722                 rlen = read(ipc->sock, &buf[len], bytes - len);
2723                 if (rlen < 1) {
2724                         connection_died(ipc, 0);
2725                         return;
2726                 }
2727                 len += rlen;
2728         }
2729 }
2730
2731
2732 /*
2733  * send binary to server
2734  */
2735 void serv_write(CtdlIPC *ipc, const char *buf, unsigned int nbytes)
2736 {
2737         unsigned int bytes_written = 0;
2738         int retval;
2739
2740 #if defined(HAVE_OPENSSL)
2741         if (ipc->ssl) {
2742                 serv_write_ssl(ipc, buf, nbytes);
2743                 return;
2744         }
2745 #endif
2746         while (bytes_written < nbytes) {
2747                 retval = write(ipc->sock, &buf[bytes_written],
2748                                nbytes - bytes_written);
2749                 if (retval < 1) {
2750                         connection_died(ipc, 0);
2751                         return;
2752                 }
2753                 bytes_written += retval;
2754         }
2755 }
2756
2757
2758 #ifdef HAVE_OPENSSL
2759 /*
2760  * input binary data from encrypted connection
2761  */
2762 static void serv_read_ssl(CtdlIPC* ipc, char *buf, unsigned int bytes)
2763 {
2764         int len, rlen;
2765         char junk[1];
2766
2767         len = 0;
2768         while (len < bytes) {
2769                 if (SSL_want_read(ipc->ssl)) {
2770                         if ((SSL_write(ipc->ssl, junk, 0)) < 1) {
2771                                 error_printf("SSL_write in serv_read:\n");
2772                                 ERR_print_errors_fp(stderr);
2773                         }
2774                 }
2775                 rlen = SSL_read(ipc->ssl, &buf[len], bytes - len);
2776                 if (rlen < 1) {
2777                         long errval;
2778
2779                         errval = SSL_get_error(ipc->ssl, rlen);
2780                         if (errval == SSL_ERROR_WANT_READ ||
2781                                         errval == SSL_ERROR_WANT_WRITE) {
2782                                 sleep(1);
2783                                 continue;
2784                         }
2785 /***
2786  Not sure why we'd want to handle these error codes any differently,
2787  but this definitely isn't the way to handle them.  Someone must have
2788  naively assumed that we could fall back to unencrypted communications,
2789  but all it does is just recursively blow the stack.
2790                         if (errval == SSL_ERROR_ZERO_RETURN ||
2791                                         errval == SSL_ERROR_SSL) {
2792                                 serv_read(ipc, &buf[len], bytes - len);
2793                                 return;
2794                         }
2795  ***/
2796                         error_printf("SSL_read in serv_read: %s\n",
2797                                         ERR_reason_error_string(ERR_peek_error()));
2798                         connection_died(ipc, 1);
2799                         return;
2800                 }
2801                 len += rlen;
2802         }
2803 }
2804
2805
2806 /*
2807  * send binary to server encrypted
2808  */
2809 static void serv_write_ssl(CtdlIPC *ipc, const char *buf, unsigned int nbytes)
2810 {
2811         unsigned int bytes_written = 0;
2812         int retval;
2813         char junk[1];
2814
2815         while (bytes_written < nbytes) {
2816                 if (SSL_want_write(ipc->ssl)) {
2817                         if ((SSL_read(ipc->ssl, junk, 0)) < 1) {
2818                                 error_printf("SSL_read in serv_write:\n");
2819                                 ERR_print_errors_fp(stderr);
2820                         }
2821                 }
2822                 retval = SSL_write(ipc->ssl, &buf[bytes_written],
2823                                 nbytes - bytes_written);
2824                 if (retval < 1) {
2825                         long errval;
2826
2827                         errval = SSL_get_error(ipc->ssl, retval);
2828                         if (errval == SSL_ERROR_WANT_READ ||
2829                                         errval == SSL_ERROR_WANT_WRITE) {
2830                                 sleep(1);
2831                                 continue;
2832                         }
2833                         if (errval == SSL_ERROR_ZERO_RETURN ||
2834                                         errval == SSL_ERROR_SSL) {
2835                                 serv_write(ipc, &buf[bytes_written],
2836                                                 nbytes - bytes_written);
2837                                 return;
2838                         }
2839                         error_printf("SSL_write in serv_write: %s\n",
2840                                         ERR_reason_error_string(ERR_peek_error()));
2841                         connection_died(ipc, 1);
2842                         return;
2843                 }
2844                 bytes_written += retval;
2845         }
2846 }
2847
2848
2849 #ifdef THREADED_CLIENT
2850 static void ssl_lock(int mode, int n, const char *file, int line)
2851 {
2852         if (mode & CRYPTO_LOCK)
2853                 pthread_mutex_lock(Critters[n]);
2854         else
2855                 pthread_mutex_unlock(Critters[n]);
2856 }
2857 #endif /* THREADED_CLIENT */
2858
2859
2860 static void CtdlIPC_init_OpenSSL(void)
2861 {
2862         int a;
2863         SSL_METHOD *ssl_method;
2864         DH *dh;
2865
2866         /* already done init */
2867         if (ssl_ctx) {
2868                 return;
2869         }
2870
2871         /* Get started */
2872         a = 0;
2873         ssl_ctx = NULL;
2874         dh = NULL;
2875         SSL_load_error_strings();
2876         SSLeay_add_ssl_algorithms();
2877
2878         /* Set up the SSL context in which we will oeprate */
2879         ssl_method = SSLv23_client_method();
2880         ssl_ctx = SSL_CTX_new(ssl_method);
2881         if (!ssl_ctx) {
2882                 error_printf("SSL_CTX_new failed: %s\n",
2883                                 ERR_reason_error_string(ERR_get_error()));
2884                 return;
2885         }
2886         /* Any reasonable cipher we can get */
2887         if (!(SSL_CTX_set_cipher_list(ssl_ctx, CIT_CIPHERS))) {
2888                 error_printf("No ciphers available for encryption\n");
2889                 return;
2890         }
2891         SSL_CTX_set_session_cache_mode(ssl_ctx, SSL_SESS_CACHE_BOTH);
2892
2893         /* Load DH parameters into the context */
2894         dh = DH_new();
2895         if (!dh) {
2896                 error_printf("Can't allocate a DH object: %s\n",
2897                                 ERR_reason_error_string(ERR_get_error()));
2898                 return;
2899         }
2900         if (!(BN_hex2bn(&(dh->p), DH_P))) {
2901                 error_printf("Can't assign DH_P: %s\n",
2902                                 ERR_reason_error_string(ERR_get_error()));
2903                 DH_free(dh);
2904                 return;
2905         }
2906         if (!(BN_hex2bn(&(dh->g), DH_G))) {
2907                 error_printf("Can't assign DH_G: %s\n",
2908                                 ERR_reason_error_string(ERR_get_error()));
2909                 DH_free(dh);
2910                 return;
2911         }
2912         dh->length = DH_L;
2913         SSL_CTX_set_tmp_dh(ssl_ctx, dh);
2914         DH_free(dh);
2915
2916 #ifdef THREADED_CLIENT
2917         /* OpenSSL requires callbacks for threaded clients */
2918         CRYPTO_set_locking_callback(ssl_lock);
2919         CRYPTO_set_id_callback(id_callback);
2920
2921         /* OpenSSL requires us to do semaphores for threaded clients */
2922         Critters = malloc(CRYPTO_num_locks() * sizeof (pthread_mutex_t *));
2923         if (!Critters) {
2924                 perror("malloc failed");
2925                 exit(1);
2926         } else {
2927                 for (a = 0; a < CRYPTO_num_locks(); a++) {
2928                         Critters[a] = malloc(sizeof (pthread_mutex_t));
2929                         if (!Critters[a]) {
2930                                 perror("malloc failed");
2931                                 exit(1);
2932                         }
2933                         pthread_mutex_init(Critters[a], NULL);
2934                 }
2935         }
2936 #endif /* THREADED_CLIENT */
2937 }
2938
2939
2940
2941 #ifdef THREADED_CLIENT
2942 static unsigned long id_callback(void) {
2943         return (unsigned long)pthread_self();
2944 }
2945 #endif /* THREADED_CLIENT */
2946 #endif /* HAVE_OPENSSL */
2947
2948
2949 int
2950 ReadNetworkChunk(CtdlIPC* ipc)
2951 {
2952         fd_set read_fd;
2953         int tries;
2954         int ret = 0;
2955         int err = 0;
2956         struct timeval tv;
2957         size_t n;
2958
2959         tv.tv_sec = 1;
2960         tv.tv_usec = 1000;
2961         tries = 0;
2962         n = 0;
2963         while (1)
2964         {
2965                 errno=0;
2966                 FD_ZERO(&read_fd);
2967                 FD_SET(ipc->sock, &read_fd);
2968                 ret = select(ipc->sock+1, &read_fd, NULL, NULL,  &tv);
2969
2970 //              fprintf(stderr, "\nselect failed: %d %d %s\n", ret,  err, strerror(err));
2971
2972                 if (ret > 0) {
2973
2974                         *(ipc->BufPtr) = '\0';
2975 //                      n = read(ipc->sock, ipc->BufPtr, ipc->BufSize  - (ipc->BufPtr - ipc->Buf) - 1);
2976                         n = recv(ipc->sock, ipc->BufPtr, ipc->BufSize  - (ipc->BufPtr - ipc->Buf) - 1, 0);
2977                         if (n > 0) {
2978                                 ipc->BufPtr[n]='\0';
2979                                 ipc->BufUsed += n;
2980                                 return n;
2981                         }
2982                         else
2983                                 return n;
2984                 }
2985                 else if (ret < 0) {
2986                         if (!(errno == EINTR || errno == EAGAIN))
2987                                 error_printf( "\nselect failed: %d %s\n", err, strerror(err));
2988                         return -1;
2989                 }/*
2990                 else {
2991                         tries ++;
2992                         if (tries >= 10)
2993                         n = read(ipc->sock, ipc->BufPtr, ipc->BufSize  - (ipc->BufPtr - ipc->Buf) - 1);
2994                         if (n > 0) {
2995                                 ipc->BufPtr[n]='\0';
2996                                 ipc->BufUsed += n;
2997                                 return n;
2998                         }
2999                         else {
3000                                 connection_died(ipc, 0);
3001                                 return -1;
3002                         }
3003                         }*/
3004         }
3005 }
3006
3007 /*
3008  * input string from socket - implemented in terms of serv_read()
3009  */
3010 #ifdef CHUNKED_READ
3011
3012 static void CtdlIPC_getline(CtdlIPC* ipc, char *buf)
3013 {
3014         int i, ntries;
3015         char *aptr, *bptr, *aeptr, *beptr;
3016
3017 //      error_printf("---\n");
3018
3019         beptr = buf + SIZ;
3020 #if defined(HAVE_OPENSSL)
3021         if (ipc->ssl) {
3022
3023                 /* Read one character at a time. */
3024                 for (i = 0;; i++) {
3025                         serv_read(ipc, &buf[i], 1);
3026                         if (buf[i] == '\n' || i == (SIZ-1))
3027                                 break;
3028                 }
3029
3030                 /* If we got a long line, discard characters until the newline. */
3031                 if (i == (SIZ-1))
3032                         while (buf[i] != '\n')
3033                                 serv_read(ipc, &buf[i], 1);
3034
3035                 /* Strip the trailing newline (and carriage return, if present) */
3036                 if (i>=0 && buf[i] == 10) buf[i--] = 0;
3037                 if (i>=0 && buf[i] == 13) buf[i--] = 0;
3038         }
3039         else
3040 #endif
3041         {
3042                 if (ipc->Buf == NULL)
3043                 {
3044                         ipc->BufSize = SIZ;
3045                         ipc->Buf = (char*) malloc(ipc->BufSize + 10);
3046                         *(ipc->Buf) = '\0';
3047                         ipc->BufPtr = ipc->Buf;
3048                 }
3049
3050                 ntries = 0;
3051 //              while ((ipc->BufUsed == 0)||(ntries++ > 10))
3052                 if (ipc->BufUsed == 0)
3053                         ReadNetworkChunk(ipc);
3054
3055 ////            if (ipc->BufUsed != 0) while (1)
3056                 bptr = buf;
3057
3058                 while (1)
3059                 {
3060                         aptr = ipc->BufPtr;
3061                         aeptr = ipc->Buf + ipc->BufSize;
3062                         while ((aptr < aeptr) &&
3063                                (bptr < beptr) &&
3064                                (*aptr != '\0') &&
3065                                (*aptr != '\n'))
3066                                 *(bptr++) = *(aptr++);
3067                         if ((*aptr == '\n') && (aptr < aeptr))
3068                         {
3069                                 /* Terminate it right, remove the line breaks */
3070                                 while ((aptr < aeptr) && ((*aptr == '\n') || (*aptr == '\r')))
3071                                         aptr ++;
3072                                 while ((aptr < aeptr ) && (*(aptr + 1) == '\0') )
3073                                         aptr ++;
3074                                 *(bptr++) = '\0';
3075 //                              fprintf(stderr, "parsing %d %d %d - %d %d %d %s\n", ipc->BufPtr - ipc->Buf, aptr - ipc->BufPtr, ipc->BufUsed , *aptr, *(aptr-1), *(aptr+1), buf);
3076                                 if ((bptr > buf + 1) && (*(bptr-1) == '\r'))
3077                                         *(--bptr) = '\0';
3078
3079                                 /* is there more in the buffer we need to read later? */
3080                                 if (ipc->Buf + ipc->BufUsed > aptr)
3081                                 {
3082                                         ipc->BufPtr = aptr;
3083                                 }
3084                                 else
3085                                 {
3086                                         ipc->BufUsed = 0;
3087                                         ipc->BufPtr = ipc->Buf;
3088                                 }
3089 //                              error_printf("----bla6\n");
3090                                 return;
3091
3092                         }/* should we move our read stuf to the bufferstart so we have more space at the end? */
3093                         else if ((ipc->BufPtr != ipc->Buf) &&
3094                                  (ipc->BufUsed > (ipc->BufSize  - (ipc->BufSize / 4))))
3095                         {
3096                                 size_t NewBufSize = ipc->BufSize * 2;
3097                                 int delta = (ipc->BufPtr - ipc->Buf);
3098                                 char *NewBuf;
3099
3100                                 /* if the line would end after our buffer, we should use a bigger buffer. */
3101                                 NewBuf = (char *)malloc (NewBufSize + 10);
3102                                 memcpy (NewBuf, ipc->BufPtr, ipc->BufUsed - delta);
3103                                 free(ipc->Buf);
3104                                 ipc->Buf = ipc->BufPtr = NewBuf;
3105                                 ipc->BufUsed -= delta;
3106                                 ipc->BufSize = NewBufSize;
3107                         }
3108                         if (ReadNetworkChunk(ipc) <0)
3109                         {
3110 //                              error_printf("----bla\n");
3111                                 return;
3112                         }
3113                 }
3114 ///             error_printf("----bl45761%s\nipc->BufUsed");
3115         }
3116 //      error_printf("----bla1\n");
3117 }
3118
3119 #else   /* CHUNKED_READ */
3120
3121 static void CtdlIPC_getline(CtdlIPC* ipc, char *buf)
3122 {
3123         int i;
3124
3125         /* Read one character at a time. */
3126         for (i = 0;; i++) {
3127                 serv_read(ipc, &buf[i], 1);
3128                 if (buf[i] == '\n' || i == (SIZ-1))
3129                         break;
3130         }
3131
3132         /* If we got a long line, discard characters until the newline. */
3133         if (i == (SIZ-1))
3134                 while (buf[i] != '\n')
3135                         serv_read(ipc, &buf[i], 1);
3136
3137         /* Strip the trailing newline (and carriage return, if present) */
3138         if (i>=0 && buf[i] == 10) buf[i--] = 0;
3139         if (i>=0 && buf[i] == 13) buf[i--] = 0;
3140 }
3141
3142
3143 #endif  /* CHUNKED_READ */
3144
3145
3146 void CtdlIPC_chat_recv(CtdlIPC* ipc, char* buf)
3147 {
3148         CtdlIPC_getline(ipc, buf);
3149 }
3150
3151 /*
3152  * send line to server - implemented in terms of serv_write()
3153  */
3154 static void CtdlIPC_putline(CtdlIPC *ipc, const char *buf)
3155 {
3156         char *cmd = NULL;
3157         int len;
3158
3159         len = strlen(buf);
3160         cmd = malloc(len + 2);
3161         if (!cmd) {
3162                 /* This requires no extra memory */
3163                 serv_write(ipc, buf, len);
3164                 serv_write(ipc, "\n", 1);
3165         } else {
3166                 /* This is network-optimized */
3167                 strncpy(cmd, buf, len);
3168                 strcpy(cmd + len, "\n");
3169                 serv_write(ipc, cmd, len + 1);
3170                 free(cmd);
3171         }
3172
3173         ipc->last_command_sent = time(NULL);
3174 }
3175
3176 void CtdlIPC_chat_send(CtdlIPC* ipc, const char* buf)
3177 {
3178         CtdlIPC_putline(ipc, buf);
3179 }
3180
3181
3182 /*
3183  * attach to server
3184  */
3185 CtdlIPC* CtdlIPC_new(int argc, char **argv, char *hostbuf, char *portbuf)
3186 {
3187         int a;
3188         char cithost[SIZ];
3189         char citport[SIZ];
3190         char sockpath[SIZ];
3191         CtdlIPC* ipc;
3192
3193         ipc = ialloc(CtdlIPC);
3194         if (!ipc) {
3195                 return 0;
3196         }
3197 #if defined(HAVE_OPENSSL)
3198         ipc->ssl = NULL;
3199         CtdlIPC_init_OpenSSL();
3200 #endif
3201 #if defined(HAVE_PTHREAD_H)
3202         pthread_mutex_init(&(ipc->mutex), NULL); /* Default fast mutex */
3203 #endif
3204         ipc->sock = -1;                 /* Not connected */
3205         ipc->isLocal = 0;               /* Not local, of course! */
3206         ipc->downloading = 0;
3207         ipc->uploading = 0;
3208         ipc->last_command_sent = 0L;
3209         ipc->network_status_cb = NULL;
3210         ipc->Buf = NULL;
3211         ipc->BufUsed = 0;
3212         ipc->BufPtr = NULL;
3213
3214         strcpy(cithost, DEFAULT_HOST);  /* default host */
3215         strcpy(citport, DEFAULT_PORT);  /* default port */
3216
3217         /* Allow caller to supply our values (Windows) */
3218         if (hostbuf && strlen(hostbuf) > 0)
3219                 strcpy(cithost, hostbuf);
3220         if (portbuf && strlen(portbuf) > 0)
3221                 strcpy(citport, portbuf);
3222
3223         /* Read host/port from command line if present */
3224         for (a = 0; a < argc; ++a) {
3225                 if (a == 0) {
3226                         /* do nothing */
3227                 } else if (a == 1) {
3228                         strcpy(cithost, argv[a]);
3229                 } else if (a == 2) {
3230                         strcpy(citport, argv[a]);
3231                 } else {
3232                         error_printf("%s: usage: ",argv[0]);
3233                         error_printf("%s [host] [port] ",argv[0]);
3234                         ifree(ipc);
3235                         errno = EINVAL;
3236                         return 0;
3237                 }
3238         }
3239
3240         if ((!strcmp(cithost, "localhost"))
3241            || (!strcmp(cithost, "127.0.0.1"))) {
3242                 ipc->isLocal = 1;
3243         }
3244
3245         /* If we're using a unix domain socket we can do a bunch of stuff */
3246         if (!strcmp(cithost, UDS)) {
3247                 if (!strcasecmp(citport, DEFAULT_PORT)) {
3248                         snprintf(sockpath, sizeof sockpath, file_citadel_socket);
3249                 }
3250                 else {
3251                         snprintf(sockpath, sizeof sockpath, "%s/%s", citport, "citadel.socket");
3252                 }
3253                 ipc->sock = uds_connectsock(&(ipc->isLocal), sockpath);
3254                 if (ipc->sock == -1) {
3255                         ifree(ipc);
3256                         return 0;
3257                 }
3258                 if (hostbuf != NULL) strcpy(hostbuf, cithost);
3259                 if (portbuf != NULL) strcpy(portbuf, sockpath);
3260                 return ipc;
3261         }
3262
3263         ipc->sock = connectsock(cithost, citport, "tcp", 504);
3264         if (ipc->sock == -1) {
3265                 ifree(ipc);
3266                 return 0;
3267         }
3268         if (hostbuf != NULL) strcpy(hostbuf, cithost);
3269         if (portbuf != NULL) strcpy(portbuf, citport);
3270         return ipc;
3271 }
3272
3273
3274 /*
3275  * Disconnect and delete the IPC class (destructor)
3276  */
3277 void CtdlIPC_delete(CtdlIPC* ipc)
3278 {
3279 #ifdef HAVE_OPENSSL
3280         if (ipc->ssl) {
3281                 SSL_shutdown(ipc->ssl);
3282                 SSL_free(ipc->ssl);
3283                 ipc->ssl = NULL;
3284         }
3285 #endif
3286         if (ipc->sock > -1) {
3287                 shutdown(ipc->sock, 2); /* Close it up */
3288                 ipc->sock = -1;
3289         }
3290         if (ipc->Buf != NULL)
3291                 free (ipc->Buf);
3292         ipc->Buf = NULL;
3293         ipc->BufPtr = NULL;
3294         ifree(ipc);
3295 }
3296
3297
3298 /*
3299  * Disconnect and delete the IPC class (destructor)
3300  * Also NULLs out the pointer
3301  */
3302 void CtdlIPC_delete_ptr(CtdlIPC** pipc)
3303 {
3304         CtdlIPC_delete(*pipc);
3305         *pipc = NULL;
3306 }
3307
3308
3309 /*
3310  * return the file descriptor of the server socket so we can select() on it.
3311  *
3312  * FIXME: This is only used in chat mode; eliminate it when chat mode gets
3313  * rewritten...
3314  */
3315 int CtdlIPC_getsockfd(CtdlIPC* ipc)
3316 {
3317         return ipc->sock;
3318 }
3319
3320
3321 /*
3322  * return one character
3323  *
3324  * FIXME: This is only used in chat mode; eliminate it when chat mode gets
3325  * rewritten...
3326  */
3327 char CtdlIPC_get(CtdlIPC* ipc)
3328 {
3329         char buf[2];
3330         char ch;
3331
3332         serv_read(ipc, buf, 1);
3333         ch = (int) buf[0];
3334
3335         return (ch);
3336 }