citadel/citadel_ipc.c

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