2 * Dolda Connect - Modular multiuser Direct Connect-style client
3 * Copyright (C) 2004 Fredrik Tolf (fredrik@dolda2000.com)
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <netinet/in.h>
27 #include <arpa/inet.h>
45 #include "sysevents.h"
50 * The Direct Connect protocol is extremely ugly. Thus, this code must
51 * also be a bit ugly in certain places. Please forgive me. =/
53 * This also means that there might be some pieces of the code that
54 * look completely illogical to you, and you think that you may make
55 * them much neater/better. However, in many cases it might just be
56 * that it's required to cope with some oddity of the protocol, such
57 * as the amazingly ugly delayed key response in the peer protocol.
60 /* I assume this is the correct character set to use for DC,
61 * considering it was developed without i18n support under Windows */
62 #define DCCHARSET "windows-1252"
64 #ifdef DCPP_MASQUERADE
66 * I honestly don't want to pretend being a client that I'm not, but
67 * there are so many hubs that simply do not accept any clients
68 * outside their whitelists, for no obvious reasons, so I feel that I
69 * am left with little choice. Anyhow, as long as I actually support
70 * all the features that my faked DC++ version does, there should be
71 * very little harm done.
74 #define DCIDTAGV "0.674"
75 #define DCIDFULL "DC++ 0.674"
77 #define DCIDTAG "Dolda"
78 #define DCIDTAGV VERSION
79 #define DCIDFULL "DoldaConnect " VERSION
94 void (*handler)(struct socket *sk, void *data, char *cmd, char *args);
100 struct qcommand *next;
107 size_t inbufdata, inbufsize;
108 struct qcommand *queue;
116 struct dcexppeer *next, *prev;
119 struct timer *expire;
124 struct dcpeer *next, *prev;
128 size_t inbufdata, inbufsize;
129 size_t curread, totalsize;
131 struct qcommand *queue;
132 struct transfer *transfer;
134 int ptclose; /* Close after transfer is complete */
135 int accepted; /* If false, we connected, otherwise, we accepted */
137 int direction; /* Using the constants from transfer.h */
139 int hascurpos, notthl;
140 struct tigertreehash tth;
148 static struct fnet dcnet;
149 static struct transferiface dctransfer;
150 static struct socket *udpsock = NULL;
151 static struct socket *tcpsock = NULL;
152 static struct dcpeer *peers = NULL;
154 static struct dcexppeer *expected = NULL;
155 static char *hmlistname = NULL;
156 static char *xmllistname = NULL;
157 static char *xmlbz2listname = NULL;
159 static void peerconnect(struct socket *sk, int err, struct fnetnode *fn);
160 static void freedcpeer(struct dcpeer *peer);
161 static void transread(struct socket *sk, struct dcpeer *peer);
162 static void transerr(struct socket *sk, int err, struct dcpeer *peer);
163 static void transwrite(struct socket *sk, struct dcpeer *peer);
164 static void updatehmlist(void);
165 static void updatexmllist(void);
166 static void updatexmlbz2list(void);
167 static void requestfile(struct dcpeer *peer);
169 static int reservedchar(unsigned char c)
171 return((c == 0) || (c == 5) || (c == 124) || (c == 96) || (c == 126) || (c == 36));
174 /* Oh, how I despise having to do this... */
175 static char *dcmakekey(char *lock)
181 buf = smalloc(strlen(lock));
184 for(i = 0; lock[i]; i++)
186 buf[i] = lock[i] ^ save;
187 buf[i] = ((buf[i] & 0x0F) << 4) | ((buf[i] & 0xF0) >> 4);
189 if((i != 0) && reservedchar(buf[i]))
194 buf[0] ^= buf[i - 1];
195 if(reservedchar(buf[0]))
199 key = smalloc(len + 1);
201 for(i = 0; lock[i] != 0; i++)
203 if(reservedchar(buf[i]))
204 offset += sprintf(key + offset, "/%%DCN%03i%%/", buf[i]);
206 key[offset++] = buf[i];
213 static char *pathnmdc2adc(char *path)
216 size_t retsize, retdata;
218 if(!strcmp(path, "files.xml") || !strcmp(path, "files.xml.bz2") || !strcmp(path, "MyList.DcLst"))
219 return(sstrdup(path));
221 retsize = retdata = 0;
228 addtobuf(ret, *path);
234 static int isdchash(struct hash *hash)
236 if(wcscmp(hash->algo, L"TTH"))
243 static int supports(struct dcpeer *peer, char *cap)
247 if(peer->supports == NULL)
249 for(p = peer->supports; *p != NULL; p++)
251 if(!strcasecmp(*p, cap))
257 static void endcompress(struct dcpeer *peer)
259 if(peer->compress == CPRS_ZLIB)
261 deflateEnd(peer->cprsdata);
262 free(peer->cprsdata);
264 peer->compress = CPRS_NONE;
267 static void initcompress(struct dcpeer *peer, int algo)
272 peer->compress = algo;
273 if(algo == CPRS_ZLIB)
275 peer->cprsdata = smalloc(sizeof(z_stream));
276 memset(peer->cprsdata, 0, sizeof(z_stream));
277 if((ret = deflateInit(peer->cprsdata, 3)) != Z_OK)
279 flog(LOG_CRIT, "Aiya! zlib refuses to init (%i)!", ret);
285 static void unquote(wchar_t *in)
289 for(p = in; *p != L'\0'; p++)
293 for(p2 = p + 1; (*p2 != L'\0') && (*p2 != L';') && (*p2 != L'&'); p2++);
300 if(!wcscmp(p + 1, L"amp"))
303 } else if(p[1] == L'#') {
304 nc = ucptowc(wcstol(p + 2, NULL, 10));
313 memmove(p + 1, p2 + 1, (wcslen(p2 + 1) + 1) * sizeof(wchar_t));
318 static void freeexppeer(struct dcexppeer *ep)
321 ep->next->prev = ep->prev;
323 ep->prev->next = ep->next;
328 if(ep->expire != NULL)
329 canceltimer(ep->expire);
333 static void exppeerexpire(int cancelled, struct dcexppeer *ep)
340 static struct dcexppeer *expectpeer(char *nick, struct fnetnode *fn)
342 struct dcexppeer *ep;
344 ep = smalloc(sizeof(*ep));
345 ep->nick = sstrdup(nick);
346 getfnetnode(ep->fn = fn);
347 ep->expire = timercallback(ntime() + 300, (void (*)(int, void *))exppeerexpire, ep);
356 static struct qcommand *newqcmd(struct qcommand **queue, char *string)
358 struct qcommand *new;
360 while(*queue != NULL)
361 queue = &(*queue)->next;
362 new = smalloc(sizeof(*new));
363 new->string = sstrdup(string);
369 static struct qcommand *ulqcmd(struct qcommand **queue)
371 struct qcommand *qcmd;
373 if((qcmd = *queue) == NULL)
379 static void freeqcmd(struct qcommand *qcmd)
385 static void hubrecvchat(struct socket *sk, struct fnetnode *fn, char *from, char *string)
387 wchar_t *chat, *wfrom, *wpeer;
389 struct fnetpeer *peer;
391 end = string + strlen(string);
392 while((p = strchr(string, 13)) != NULL)
393 memmove(p, p + 1, (end-- - p));
396 if((strlen(string) > strlen(from) + 2) && (*string == '<') && !memcmp(string + 1, from, strlen(from)) && (*(string + strlen(from) + 1) == '>'))
397 string += strlen(from) + 2;
398 if((wfrom = icmbstowcs(from, DCCHARSET)) == NULL)
400 wpeer = swcsdup(wfrom);
406 for(p = string + 1; *p; p++)
408 if((*p == ' ') || (*p == '>'))
416 if((wpeer = icmbstowcs(string + 1, DCCHARSET)) == NULL)
422 wpeer = swcsdup(L"");
424 if((chat = icmbstowcs(string, DCCHARSET)) == NULL)
434 if((peer = fnetfindpeer(fn, wfrom)) == NULL) /* Assume public chat */
435 fnethandlechat(fn, 1, wfrom, wpeer, chat);
437 fnethandlechat(fn, 0, wfrom, wpeer, chat);
439 fnethandlechat(fn, 1, L"", wpeer, chat);
447 static void sendadc(struct socket *sk, char *arg)
450 size_t bufsize, bufdata;
453 bufsize = bufdata = 0;
459 bufcat(buf, "\\s", 2);
460 } else if(*arg == '\n') {
461 bufcat(buf, "\\n", 2);
462 } else if(*arg == '\\') {
463 bufcat(buf, "\\\\", 2);
468 sockqueue(sk, buf, bufdata);
472 static void sendadcf(struct socket *sk, char *arg, ...)
478 buf = vsprintf2(arg, args);
486 static char **parseadc(char *args)
489 size_t retbufsize, retbufdata;
491 size_t bufsize, bufdata;
496 retbufsize = retbufdata = bufsize = bufdata = 0;
505 else if(*args != ' ')
509 if((*args == ' ') || (*args == 0))
512 addtobuf(retbuf, buf);
514 bufsize = bufdata = 0;
517 } else if(*args == '\\') {
520 addtobuf(buf, *args);
529 addtobuf(retbuf, NULL);
532 } else if((*args == 's') || (*args == ' ')) {
534 } else if(*args == 'n') {
536 } else if(*args == '\\') {
546 addtobuf(retbuf, NULL);
550 /* Macros useful in command handlers */
551 #define skipspace(s) ({if(((s) = strchr((s), ' ')) == NULL) return; else (s)++;})
552 #define qstr(sk, str) sockqueue(sk, str, strlen(str))
553 #define qstrf(sk, strandargs...) \
556 if((__buf__ = sprintf2(strandargs)) != NULL) { \
557 sockqueue(sk, __buf__, strlen(__buf__)); \
562 static char *tr(char *str, char *trans)
566 for(; *trans; trans += 2)
568 for(p = strchr(str, trans[0]); p != NULL; p = strchr(p, trans[0]))
574 static char *getadcid(struct dcpeer *peer)
580 if(!wcscmp(peer->transfer->path, L"files.xml") || !wcscmp(peer->transfer->path, L"files.xml.bz2") || !wcscmp(peer->transfer->path, L"MyList.DcLst"))
582 if(!isfilelist && (peer->transfer->hash != NULL) && isdchash(peer->transfer->hash) && supports(peer, "tthf"))
584 buf = base32encode(peer->transfer->hash->buf, 24);
585 ret = sprintf2("TTH/%.39s", buf);
588 if((buf = icwcstombs(peer->transfer->path, "UTF-8")) == NULL)
590 ret = pathnmdc2adc(buf);
597 static int trresumecb(struct transfer *transfer, wchar_t *cmd, wchar_t *arg, struct dcpeer *peer)
599 if(!wcscmp(cmd, L"resume"))
603 flog(LOG_WARNING, "filter returned no position for \"resume\" on transfer %i", transfer->id);
606 transfer->curpos = wcstol(arg, NULL, 10);
615 static void sendmynick(struct dcpeer *peer)
619 hub = (peer->fn == NULL)?NULL:(peer->fn->data);
621 qstrf(peer->sk, "$MyNick %s|", icswcstombs(confgetstr("cli", "defnick"), DCCHARSET, "DoldaConnectUser-IN"));
623 qstrf(peer->sk, "$MyNick %s|", hub->nativenick);
626 static void sendpeerlock(struct dcpeer *peer)
628 #ifdef DCPP_MASQUERADE
629 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DCPLUSPLUS0.674ABCABC|");
631 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DOLDA%sABCABCABC|", VERSION);
635 static void sendsupports(struct dcpeer *peer)
637 #ifdef DCPP_MASQUERADE
638 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG |");
640 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG|");
644 static void requestfile(struct dcpeer *peer)
648 if(peer->transfer->size == -1)
650 if((buf = icswcstombs(peer->transfer->path, DCCHARSET, NULL)) == NULL)
652 transferseterror(peer->transfer, TRNSE_NOTFOUND);
656 /* The transfer will be restarted later from
657 * cmd_filelength when it detects that the sizes
659 qstrf(peer->sk, "$Get %s$1|", buf);
662 if((peer->transfer->hash == NULL) && !peer->notthl)
664 if(supports(peer, "adcget") && supports(peer, "tthl"))
666 qstr(peer->sk, "$ADCGET");
667 sendadc(peer->sk, "tthl");
668 if((buf = getadcid(peer)) == NULL)
670 transferseterror(peer->transfer, TRNSE_NOTFOUND);
674 sendadc(peer->sk, buf);
676 sendadc(peer->sk, "0");
677 sendadc(peer->sk, "-1");
684 if(forkfilter(peer->transfer))
686 flog(LOG_WARNING, "could not fork filter for transfer %i: %s", peer->transfer->id, strerror(errno));
690 CBREG(peer->transfer, trans_filterout, (int (*)(struct transfer *, wchar_t *, wchar_t *, void *))trresumecb, NULL, peer);
693 if(supports(peer, "adcget"))
695 qstr(peer->sk, "$ADCGET");
696 sendadc(peer->sk, "file");
697 if((buf = getadcid(peer)) == NULL)
699 transferseterror(peer->transfer, TRNSE_NOTFOUND);
703 sendadc(peer->sk, buf);
705 sendadcf(peer->sk, "%i", peer->transfer->curpos);
706 sendadcf(peer->sk, "%i", peer->transfer->size - peer->transfer->curpos);
708 } else if(supports(peer, "xmlbzlist")) {
709 if((buf = icswcstombs(peer->transfer->path, "UTF-8", NULL)) == NULL)
711 transferseterror(peer->transfer, TRNSE_NOTFOUND);
715 qstrf(peer->sk, "$UGetBlock %i %i %s|", peer->transfer->curpos, peer->transfer->size - peer->transfer->curpos, buf);
717 if((buf = icswcstombs(peer->transfer->path, DCCHARSET, NULL)) == NULL)
719 transferseterror(peer->transfer, TRNSE_NOTFOUND);
723 qstrf(peer->sk, "$Get %s$%i|", buf, peer->transfer->curpos + 1);
727 static void sendmyinfo(struct socket *sk, struct fnetnode *fn)
731 struct fnetnode *cfn;
735 qstrf(sk, "$MyINFO $ALL %s ", hub->nativenick);
736 buf = tr(icswcstombs(confgetstr("dc", "desc"), DCCHARSET, "Charset_conv_failure"), "$_|_");
737 qstrf(sk, "%s", buf);
739 for(cfn = fnetnodes; cfn != NULL; cfn = cfn->next)
741 if((cfn->state == FNN_EST) || (cfn->state == FNN_HS))
744 qstrf(sk, "<%s V:%s,M:%c,H:%i/0/0,S:%i>",
747 (tcpsock == NULL)?'P':'A',
749 confgetint("transfer", "slots")
752 buf = tr(icswcstombs(confgetstr("dc", "speedstring"), DCCHARSET, "Charset_conv_failure"), "$_|_");
753 qstrf(sk, "%s\x01$", buf);
754 buf = tr(icswcstombs(confgetstr("dc", "email"), DCCHARSET, "Charset_conv_failure"), "$_|_");
755 qstrf(sk, "%s$", buf);
756 qstrf(sk, "%llu$|", sharesize);
759 static void hubhandleaction(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
764 if(!strcmp(cmd, "$Lock"))
766 qstrf(sk, "$ValidateNick %s|", hub->nativenick);
767 } else if(!strcmp(cmd, "$Hello")) {
768 if(fn->state == FNN_HS)
770 qstrf(sk, "$Version 1,0091|");
771 qstrf(sk, "$GetNickList|");
773 fnetsetstate(fn, FNN_EST);
775 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
780 static void cmd_lock(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
787 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
789 if((p = strchr(args, ' ')) != NULL)
793 #ifdef DCPP_MASQUERADE
794 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock |");
796 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock|");
799 key = dcmakekey(args);
800 qstrf(sk, "$Key %s|", key);
802 hubhandleaction(sk, fn, cmd, args);
805 static void cmd_hubname(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
811 if(hub->nativename == NULL)
812 free(hub->nativename);
813 hub->nativename = sstrdup(args);
814 buf = icmbstowcs(args, DCCHARSET);
815 fnetsetname(fn, (buf == NULL)?L"Hubname conv error":buf);
818 hubhandleaction(sk, fn, cmd, args);
821 static void cmd_hello(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
827 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
829 if(strcmp(args, hub->nativenick) && (fnetfindpeer(fn, nick) == NULL))
830 fnetaddpeer(fn, nick, nick);
832 hubhandleaction(sk, fn, cmd, args);
835 static void cmd_quit(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
838 struct fnetpeer *peer;
842 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
844 if((peer = fnetfindpeer(fn, nick)) != NULL)
847 hubhandleaction(sk, fn, cmd, args);
850 static void cmd_nicklist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
855 struct fnetpeer *peer, *npeer;
858 for(peer = fn->peers; peer != NULL; peer = peer->next)
859 peer->flags.b.delete = 1;
860 while((p = strstr(args, "$$")) != NULL)
863 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
865 if((peer = fnetfindpeer(fn, buf)) == NULL)
866 peer = fnetaddpeer(fn, buf, buf);
868 peer->flags.b.delete = 0;
870 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
874 for(peer = fn->peers; peer != NULL; peer = npeer)
877 if(peer->flags.b.delete)
880 hubhandleaction(sk, fn, cmd, args);
883 static void cmd_oplist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
888 struct fnetpeer *peer;
891 for(peer = fn->peers; peer != NULL; peer = peer->next)
892 peer->flags.b.op = 0;
893 while((p = strstr(args, "$$")) != NULL)
896 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
898 if((peer = fnetfindpeer(fn, buf)) != NULL)
899 peer->flags.b.op = 1;
904 hubhandleaction(sk, fn, cmd, args);
907 static void cmd_myinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
910 wchar_t *buf, *wp, *wp2;
912 struct fnetpeer *peer;
917 if(strncmp(p, "$ALL ", 5))
920 if((p2 = strchr(p, ' ')) == NULL)
923 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
925 if((peer = fnetfindpeer(fn, buf)) == NULL)
926 peer = fnetaddpeer(fn, buf, buf);
929 if((p2 = strstr(p, "$ $")) == NULL)
932 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
934 if((wcslen(buf) > 0) && (buf[wcslen(buf) - 1] == L'>') && ((wp = wcschr(buf, L'<')) != NULL))
936 buf[wcslen(buf) - 1] = L'\0';
938 if((wp2 = wcschr(wp, L' ')) != NULL)
941 fnetpeersetstr(peer, L"dc-client", wp);
945 if((wp2 = wcschr(wp, L',')) != NULL)
949 swprintf(abuf, 10, L"dc-tag-%lc", wp[0]);
950 fnetpeersetstr(peer, abuf, wp + 2);
952 } while(wp2 != NULL);
955 fnetpeersetstr(peer, L"descr", buf);
958 if((p2 = strchr(p, '$')) == NULL)
961 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
963 fnetpeersetstr(peer, L"dc-speed", buf);
966 if((p2 = strchr(p, '$')) == NULL)
969 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
971 fnetpeersetstr(peer, L"email", buf);
976 fnetpeersetlnum(peer, L"share", strtoll(p, NULL, 10));
977 hubhandleaction(sk, fn, cmd, args);
980 /* I do not implement the fully in that I do not disconnect from the
981 * old hub. I do this since I believe that if the hub owner really
982 * wants to get rid of us, then it is his responsibility to disconnect
984 static void cmd_forcemove(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
987 struct fnetnode *newfn;
991 if(strchr(args, ':') == NULL)
993 args = strcpy(smalloc(strlen(args) + 5), args);
994 strcat(args, ":411");
999 if((newfn = fnetinitconnect(L"dc", args)) != NULL)
1001 linkfnetnode(newfn);
1004 hubhandleaction(sk, fn, cmd, args);
1009 static char *getdcpath(struct sharecache *node, size_t *retlen)
1014 if(node->parent == NULL)
1016 if(node->parent == shareroot)
1018 if((buf = icwcstombs(node->name, DCCHARSET)) == NULL)
1021 *retlen = strlen(buf);
1024 if((buf2 = icwcstombs(node->name, DCCHARSET)) == NULL)
1026 if((buf = getdcpath(node->parent, &len)) == NULL)
1031 len2 = strlen(buf2);
1032 buf = srealloc(buf, len + 1 + len2 + 1);
1034 strcpy(buf + len, buf2);
1035 buf[len + len2] = 0;
1038 *retlen = len + len2;
1044 * This is the main share searching function for Direct Connect
1045 * peers. Feel free to optimize it if you feel the need for it. I
1046 * haven't ever seen it take any noticable CPU time anyway, so I
1047 * haven't felt that need.
1049 * It may feel dubious to just return the directory when all terms are
1050 * satisfied rather than all the files in it, but it really benefits
1051 * everyone: Less cycles used for us, less UDP squelching for active
1052 * searchers, and less bandwidth waste for hubs when serving passive
1055 static void cmd_search(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1060 char *prefix, *infix, *postfix, *buf, *buf2;
1062 struct sockaddr_in addr;
1063 struct sharecache *node;
1064 int minsize, maxsize;
1066 int termnum, satisfied, skipcheck;
1067 int level, tersat[32];
1072 if((p = strchr(args, ' ')) == NULL)
1076 memset(terms, 0, sizeof(terms));
1077 prefix = infix = postfix = NULL;
1081 if(!strncmp(args, "Hub:", 4))
1083 if(!strcmp(cmd, "$MultiSearch"))
1085 if(!strcmp(args + 4, hub->nativenick))
1087 prefix = sprintf2("$SR %s ", hub->nativenick);
1088 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1089 postfix = sprintf2(" (%s)\005%s|", formataddress(fn->sk->remote, fn->sk->remotelen), args + 4);
1093 if((p2 = strchr(args, ':')) == NULL)
1096 addr.sin_family = AF_INET;
1097 if(!inet_aton(args, &addr.sin_addr))
1099 addr.sin_port = htons(atoi(p2));
1100 prefix = sprintf2("$SR %s ", hub->nativenick);
1101 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1102 postfix = sprintf2(" (%s)|", formataddress(fn->sk->remote, fn->sk->remotelen));
1103 netdgramconn(dsk = netdupsock(udpsock), (struct sockaddr *)&addr, sizeof(addr));
1106 minsize = maxsize = -1;
1115 if((*(p++) == 'T') && (minsize == 0))
1122 if((p2 = strchr(p, '?')) == NULL)
1137 if((*p2 == 0) || (*p2 == '$'))
1145 if(!dotth && !strncmp(p, "TTH:", 4))
1148 if((buf = base32decode(p + 4, &buflen)) == NULL)
1152 memcpy(hashtth, buf, 24);
1155 if((terms[termnum] = icmbstowcs(p, DCCHARSET)) != NULL)
1166 node = shareroot->child;
1168 for(i = 0; i < termnum; i++)
1174 if(node->f.b.type == FILE_REG)
1176 if((minsize >= 0) && (node->size < minsize))
1178 if((maxsize >= 0) && (node->size > maxsize))
1181 if(!skipcheck && dotth)
1183 if((node->f.b.type != FILE_REG) || (node->f.b.hastth && memcmp(hashtth, node->hashtth, 24)))
1188 for(i = 0; i < termnum; i++)
1192 if(wcsexists(node->name, terms[i]))
1196 } else if(node->child == NULL) {
1201 if(!skipcheck && (satisfied == termnum))
1203 if((buf = getdcpath(node, NULL)) != NULL)
1205 if(node->f.b.hastth)
1207 buf2 = base32encode(node->hashtth, 24);
1208 qstrf(dsk, "%s%s\005%i%sTTH:%.39s%s", prefix, buf, node->size, infix, buf2, postfix);
1211 qstrf(dsk, "%s%s\005%i%s%s%s", prefix, buf, node->size, infix, hub->nativename, postfix);
1216 if((!skipcheck && (satisfied == termnum)) || (node->child == NULL))
1218 while(node->next == NULL)
1220 if((node = node->parent) == shareroot)
1224 if(node == shareroot)
1226 for(i = 0; i < termnum; i++)
1228 if(tersat[i] >= level)
1241 hubhandleaction(sk, fn, cmd, args);
1252 for(i = 0; (i < 32) && (terms[i] != NULL); i++)
1256 static void cmd_connecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1260 struct socket *newsk;
1261 struct sockaddr_in addr;
1264 if((p = strchr(args, ' ')) == NULL)
1267 if(strcmp(args, hub->nativenick))
1269 addr.sin_family = AF_INET;
1271 if((p = strchr(args, ':')) == NULL)
1274 addr.sin_port = htons(atoi(p));
1275 if(!inet_aton(args, &addr.sin_addr))
1277 newsk = netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn);
1279 hubhandleaction(sk, fn, cmd, args);
1282 static void sendctm(struct socket *sk, char *nick)
1284 struct sockaddr *addr;
1289 if(sockgetremotename(tcpsock, &addr, &addrlen) < 0)
1291 if(addr->sa_family == AF_INET)
1292 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1294 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1298 static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1304 if((p = strchr(args, ' ')) == NULL)
1307 if(strcmp(p, hub->nativenick))
1310 expectpeer(args, fn);
1311 hubhandleaction(sk, fn, cmd, args);
1314 static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1317 struct fnetnode *node;
1322 for(node = fnetnodes; node != NULL; node = node->next)
1324 if(node->state == FNN_EST)
1327 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1328 hubhandleaction(sk, fn, cmd, args);
1331 static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1338 if((p2 = strchr(p, ' ')) == NULL)
1342 if((p2 = strchr(p, ' ')) == NULL)
1345 if(strcmp(p, "From:"))
1348 if((p2 = strstr(p, " $")) == NULL)
1352 hubrecvchat(fn->sk, fn, p, p2);
1353 hubhandleaction(sk, fn, cmd, args);
1356 static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1360 char *nick, *filename, *hubname;
1364 wchar_t *wnick, *wfile;
1368 if((p2 = strchr(p, ' ')) == NULL)
1373 if((p2 = strchr(p, 5)) == NULL)
1377 if((p2 = strchr(p, ' ')) == NULL)
1382 if((p2 = strchr(p, '/')) == NULL)
1387 if((p2 = strchr(p, 5)) == NULL)
1391 if((p2 = strstr(p, " (")) == NULL)
1394 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
1396 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
1401 sr = newsrchres(&dcnet, wfile, wnick);
1402 if(sr->peernick != NULL)
1404 sr->peernick = swcsdup(wnick);
1409 if(!strncmp(hubname, "TTH:", 4))
1411 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1414 sr->hash = newhash(L"TTH", 24, buf);
1418 getfnetnode(sr->fn = fn);
1421 hubhandleaction(sk, fn, cmd, args);
1424 static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1426 /* Do nothing for now. */
1429 static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1431 struct dcexppeer *expect;
1433 if(peer->nativename != NULL)
1434 free(peer->nativename);
1435 peer->nativename = sstrdup(args);
1436 if(peer->wcsname != NULL)
1437 free(peer->wcsname);
1438 if((peer->wcsname = icmbstowcs(peer->nativename, DCCHARSET)) == NULL)
1445 for(expect = expected; expect != NULL; expect = expect->next)
1447 if(!strcmp(expect->nick, args))
1454 peer->fn = expect->fn;
1455 getfnetnode(peer->fn);
1456 freeexppeer(expect);
1461 static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1465 struct transfer *transfer;
1467 if((p = strchr(args, ' ')) == NULL)
1470 if(!strcmp(args, "Upload"))
1472 if(!strcmp(args, "Download"))
1476 if((peer->transfer == NULL) || (mydir != peer->direction))
1481 if(peer->direction == TRNSD_DOWN)
1484 if(peer->wcsname == NULL)
1489 peer->direction = mydir;
1490 if(peer->direction == TRNSD_UP)
1492 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1494 if((transfer = finddownload(peer->wcsname)) == NULL)
1499 transferattach(transfer, &dctransfer, peer);
1500 transfersetstate(transfer, TRNS_HS);
1502 transfersetnick(transfer, peer->wcsname);
1503 peer->transfer = transfer;
1506 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1507 if(peer->key != NULL)
1508 qstrf(sk, "$Key %s|", peer->key);
1509 if(peer->direction == TRNSD_DOWN)
1514 static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1517 struct transfer *transfer;
1519 if((p = strchr(args, ' ')) == NULL)
1522 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1524 key = dcmakekey(args);
1527 if(peer->wcsname == NULL)
1536 if((transfer = finddownload(peer->wcsname)) == NULL)
1538 peer->direction = TRNSD_UP;
1539 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1541 peer->direction = TRNSD_DOWN;
1542 transferattach(transfer, &dctransfer, peer);
1543 transfersetstate(transfer, TRNS_HS);
1545 transfersetnick(transfer, peer->wcsname);
1546 peer->transfer = transfer;
1547 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1548 qstrf(sk, "$Key %s|", key);
1550 if(peer->key != NULL)
1556 static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1561 static void startdl(struct dcpeer *peer)
1563 peer->state = PEER_TRNS;
1564 transferstartdl(peer->transfer, peer->sk);
1565 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1566 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
1569 static void startul(struct dcpeer *peer)
1571 peer->state = PEER_TRNS;
1572 transferstartul(peer->transfer, peer->sk);
1573 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
1576 static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1580 if(peer->transfer == NULL)
1586 if(peer->transfer->size != size)
1588 transfersetsize(peer->transfer, size);
1593 qstr(peer->sk, "$Send|");
1596 static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1598 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1600 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1601 resettransfer(peer->transfer);
1607 static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1609 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1611 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1612 resettransfer(peer->transfer);
1625 {"MyList.DcLst", &hmlistname, updatehmlist},
1626 {"files.xml", &xmllistname, updatexmllist},
1627 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1631 static int openfilelist(char *name)
1636 for(i = 0; lists[i].name != NULL; i++)
1638 if(!strcmp(name, lists[i].name))
1642 if(lists[i].name == NULL)
1645 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1647 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1650 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1657 static struct sharecache *findbytth(char *tth32)
1661 struct sharecache *node;
1663 if((buf = base32decode(tth32, &buflen)) == NULL)
1670 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1672 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1679 static struct sharecache *resdcpath(char *path, char *charset, char sep)
1681 struct sharecache *node;
1688 if((p2 = strchr(p, sep)) != NULL)
1690 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1697 static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1702 struct sharecache *node;
1703 struct socket *lesk;
1707 if(peer->transfer == NULL)
1712 if((p = strchr(args, '$')) == NULL)
1718 if((offset = (atoi(p) - 1)) < 0)
1723 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1725 qstr(sk, "$Error Could not send file list|");
1728 } else if(fd >= 0) {
1729 if((buf2 = icsmbstowcs(args, DCCHARSET, NULL)) != NULL)
1730 transfersetpath(peer->transfer, buf2);
1736 qstr(sk, "$MaxedOut|");
1740 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1742 qstrf(sk, "$Error File not in share|");
1746 if((fd = opensharecache(node)) < 0)
1748 qstrf(sk, "$Error %s|", strerror(errno));
1752 buf = getfspath(node);
1753 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1754 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1756 transfersetpath(peer->transfer, buf2);
1759 if(fstat(fd, &sb) < 0)
1762 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1763 qstrf(sk, "$Error|");
1767 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1770 qstrf(sk, "$Error Offset out of range|");
1774 lesk = wrapsock(fd);
1775 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1777 qstrf(sk, "$FileLength %i|", peer->transfer->size);
1780 static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1782 if(peer->transfer == NULL)
1787 if(peer->transfer->localend == NULL)
1796 static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1801 size_t arrsize, arrdata;
1803 if(peer->supports != NULL)
1805 for(i = 0; peer->supports[i] != NULL; i++)
1806 free(peer->supports[i]);
1807 free(peer->supports);
1810 arrsize = arrdata = 0;
1814 if((p2 = strchr(p, ' ')) != NULL)
1818 addtobuf(arr, sstrdup(p));
1819 } while((p = p2) != NULL);
1820 addtobuf(arr, NULL);
1821 peer->supports = arr;
1824 static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1828 int start, numbytes;
1829 char *charset, *buf;
1831 struct sharecache *node;
1833 struct socket *lesk;
1835 if(peer->transfer == NULL)
1841 if((p2 = strchr(p, ' ')) == NULL)
1849 if((p2 = strchr(p, ' ')) == NULL)
1857 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
1860 charset = DCCHARSET;
1861 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
1862 initcompress(peer, CPRS_ZLIB);
1863 if(((fd = openfilelist(p)) < 0) && (errno != 0))
1865 qstr(sk, "$Error Could not send file list|");
1867 } else if(fd >= 0) {
1868 if((buf2 = icsmbstowcs(args, charset, NULL)) != NULL)
1869 transfersetpath(peer->transfer, buf2);
1875 qstr(sk, "$MaxedOut|");
1878 if((node = resdcpath(p, charset, '\\')) == NULL)
1880 qstr(sk, "$Error File not in cache|");
1883 if((fd = opensharecache(node)) < 0)
1885 qstrf(sk, "$Error %s|", strerror(errno));
1888 buf = getfspath(node);
1889 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1890 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1892 transfersetpath(peer->transfer, buf2);
1895 if(fstat(fd, &sb) < 0)
1898 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1899 qstr(sk, "$Error|");
1902 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
1905 qstr(sk, "$Error Offset out of range|");
1908 if((numbytes < 0) || (start + numbytes > sb.st_size))
1909 numbytes = sb.st_size - start;
1910 lesk = wrapsock(fd);
1911 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
1913 qstrf(sk, "$Sending %i|", numbytes);
1917 static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1921 int start, numbytes;
1922 struct sharecache *node;
1924 struct socket *lesk;
1928 if(peer->transfer == NULL)
1933 if((argv = parseadc(args)) == NULL)
1938 if(parrlen(argv) < 4)
1943 start = atoi(argv[2]);
1944 numbytes = atoi(argv[3]);
1947 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
1949 qstr(sk, "$Error Could not send file list|");
1951 } else if(fd >= 0) {
1952 if((wbuf = icsmbstowcs(argv[1], "UTF-8", NULL)) != NULL)
1953 transfersetpath(peer->transfer, wbuf);
1959 qstr(sk, "$MaxedOut|");
1962 if(!strncmp(argv[1], "TTH/", 4))
1964 if((node = findbytth(argv[1] + 4)) == NULL)
1966 qstr(sk, "$Error File not in cache|");
1970 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
1972 qstr(sk, "$Error File not in cache|");
1976 if((fd = opensharecache(node)) < 0)
1978 qstrf(sk, "$Error %s|", strerror(errno));
1981 buf = getfspath(node);
1982 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
1983 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1985 transfersetpath(peer->transfer, wbuf);
1988 if(!strcmp(argv[0], "file"))
1990 for(i = 4; argv[i] != NULL; i++)
1992 if(!strcmp(argv[i], "ZL1"))
1993 initcompress(peer, CPRS_ZLIB);
1995 if(fstat(fd, &sb) < 0)
1997 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1998 qstr(sk, "$Error|");
2001 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2003 qstr(sk, "$Error Offset out of range|");
2006 if((numbytes < 0) || (start + numbytes > sb.st_size))
2007 numbytes = sb.st_size - start;
2008 lesk = wrapsock(fd);
2009 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2012 qstr(sk, "$ADCSND");
2013 sendadc(sk, "file");
2014 sendadc(sk, argv[1]);
2015 sendadcf(sk, "%i", start);
2016 sendadcf(sk, "%i", numbytes);
2017 if(peer->compress == CPRS_ZLIB)
2021 } else if(!strcmp(argv[0], "tthl")) {
2023 * XXX: Implement full TTHL support.
2025 * In the meantime, this is better than nothing, since it at
2026 * least allows fetching of the TTH root if it isn't already
2031 qstr(sk, "$Error no TTHL data for virtual files|");
2034 qstr(sk, "$ADCSND");
2035 sendadc(sk, "tthl");
2036 sendadc(sk, argv[1]);
2040 sockqueue(sk, node->hashtth, 24);
2042 qstr(sk, "$Error Namespace not implemented|");
2052 static void handletthl(struct dcpeer *peer)
2056 while(peer->inbufdata >= 24)
2058 pushtigertree(&peer->tth, peer->inbuf);
2059 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
2060 peer->curread += 24;
2062 if(peer->curread >= peer->totalsize)
2064 peer->state = PEER_CMD;
2065 synctigertree(&peer->tth);
2066 restigertree(&peer->tth, buf);
2067 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2072 static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2075 int start, numbytes;
2077 if(peer->transfer == NULL)
2082 if((argv = parseadc(args)) == NULL)
2087 if(parrlen(argv) < 4)
2092 start = atoi(argv[2]);
2093 numbytes = atoi(argv[3]);
2094 if(!strcmp(argv[0], "tthl"))
2096 if((start != 0) || (numbytes % 24 != 0))
2098 /* Weird. Bail out. */
2102 peer->state = PEER_TTHL;
2103 peer->totalsize = numbytes;
2105 inittigertree(&peer->tth);
2107 } else if(!strcmp(argv[0], "file")) {
2108 if(start != peer->transfer->curpos)
2113 if(start + numbytes != peer->transfer->size)
2115 transfersetsize(peer->transfer, start + numbytes);
2120 if(peer->inbufdata > 0)
2122 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2123 peer->inbufdata = 0;
2124 transread(sk, peer);
2127 /* We certainly didn't request this...*/
2136 static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2140 if(peer->transfer == NULL)
2145 numbytes = atoi(args);
2146 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2148 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2153 if(peer->inbufdata > 0)
2155 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2156 peer->inbufdata = 0;
2157 transread(sk, peer);
2163 static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2168 hubhandleaction(sk, fn, cmd, args);
2172 static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2178 static int hubreqconn(struct fnetpeer *peer)
2183 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2188 if((hub = peer->fn->data) == NULL)
2193 if((mbsnick = icwcstombs(peer->id, DCCHARSET)) == NULL)
2194 return(1); /* Shouldn't happen, of course, but who knows... */
2197 sendctm(peer->fn->sk, mbsnick);
2198 expectpeer(mbsnick, peer->fn);
2200 qstrf(peer->fn->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
2206 static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2209 char *mbsstring, *mbsto;
2212 if((mbsto = icwcstombs(to, DCCHARSET)) == NULL)
2217 if((mbsstring = icwcstombs(string, DCCHARSET)) == NULL)
2222 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2229 if(strchr(mbsstring, '|') != NULL)
2240 qstrf(fn->sk, "<%s> %s|", hub->nativenick, mbsstring);
2242 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2245 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2252 static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2254 int minl, maxl, minr, maxr, retmin, retmax;
2259 findsizelimit(sexpr->l, &minl, &maxl);
2260 findsizelimit(sexpr->r, &minr, &maxr);
2261 retmin = (minl > minr)?minl:minr;
2262 if((maxl != -1) && (maxr != -1))
2263 retmax = (maxl < maxr)?maxl:maxr;
2272 findsizelimit(sexpr->l, &minl, &maxl);
2273 findsizelimit(sexpr->r, &minr, &maxr);
2274 retmin = (minl < minr)?minl:minr;
2275 if((maxl == -1) || (maxr == -1))
2278 retmax = (maxl > maxr)?maxl:maxr;
2281 findsizelimit(sexpr->l, &minl, &maxl);
2282 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2286 } else if((minl == 0) && (maxl != -1)) {
2289 } else if((minl != 0) && (maxl == -1)) {
2292 } else { /* This would yield two seperate intervals, which DC cannot handle */
2298 retmax = sexpr->d.n - 1;
2301 retmin = sexpr->d.n;
2302 retmax = sexpr->d.n;
2305 retmin = sexpr->d.n + 1;
2319 static struct hash *findsehash(struct sexpr *sexpr)
2321 struct hash *h1, *h2;
2326 if((h1 = findsehash(sexpr->l)) != NULL)
2328 if((h1 = findsehash(sexpr->r)) != NULL)
2332 h1 = findsehash(sexpr->l);
2333 h2 = findsehash(sexpr->r);
2338 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2339 return(sexpr->d.hash);
2346 static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2349 struct wcslist *list, *cur;
2350 char *sstr, *buf, *p;
2351 size_t sstrsize, sstrdata;
2352 struct sockaddr *name;
2354 int minsize, maxsize;
2358 if((fn->state != FNN_EST) || (fn->sk == NULL) || (fn->sk->state != SOCK_EST))
2360 list = findsexprstrs(srch->sexpr);
2361 findsizelimit(srch->sexpr, &minsize, &maxsize);
2362 hash = findsehash(srch->sexpr);
2363 if((minsize != 0) && (maxsize != -1))
2365 /* Choose either minsize or maxsize by trying to determine
2366 * which choice will be most restrictive. The result can be
2367 * approximative at best anyway, so don't try too hard... */
2368 if((50000000 - maxsize) > (minsize - 50000000))
2374 sstrsize = sstrdata = 0;
2375 if((hash != NULL) && (hash->len == 24))
2377 /* Prioritize hash searches above all else */
2378 bufcat(sstr, "F?T?0?9?TTH:", 12);
2379 buf = base32encode(hash->buf, hash->len);
2381 bufcat(sstr, buf, 39);
2386 sizebuf2(sstr, sstrdata + 32, 1);
2387 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
2388 } else if(maxsize != -1) {
2389 sizebuf2(sstr, sstrdata + 32, 1);
2390 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
2392 bufcat(sstr, "F?F?0?1?", 8);
2396 for(cur = list; cur != NULL; cur = cur->next)
2398 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2400 /* Can't find anything anyway if the search expression
2401 * requires characters outside DC's charset. There's
2402 * nothing technically wrong with the search itself,
2403 * however, so return success. This should be
2404 * considered as an optimization. */
2411 addtobuf(sstr, '$');
2413 * It probably doesn't hurt if buf contains any extra
2414 * dollar signs - it will just result in extra search
2415 * terms, and the extraneous results will be filtered by
2416 * the search layer anyway. It hurts if it contains any
2417 * pipes, though, so let's sell them for money.
2419 for(p = buf; *p; p++)
2424 bufcat(sstr, buf, strlen(buf));
2428 /* Will match all files... :-/ */
2429 addtobuf(sstr, '.');
2435 if(sockgetremotename(udpsock, &name, &namelen) < 0)
2437 flog(LOG_WARNING, "cannot get address of UDP socket");
2439 qstrf(fn->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
2443 qstrf(fn->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
2447 fn->lastsrch = time(NULL);
2455 #define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
2456 struct command hubcmds[] =
2458 {"$Lock", cc(cmd_lock)},
2459 {"$HubName", cc(cmd_hubname)},
2460 {"$Hello", cc(cmd_hello)},
2461 {"$Quit", cc(cmd_quit)},
2462 {"$NickList", cc(cmd_nicklist)},
2463 {"$OpList", cc(cmd_oplist)},
2464 {"$MyINFO", cc(cmd_myinfo)},
2465 {"$ForceMove", cc(cmd_forcemove)},
2466 {"$Search", cc(cmd_search)},
2467 {"$MultiSearch", cc(cmd_search)},
2468 {"$ConnectToMe", cc(cmd_connecttome)},
2469 {"$RevConnectToMe", cc(cmd_revconnecttome)},
2470 {"$GetNetInfo", cc(cmd_getnetinfo)},
2471 {"$To:", cc(cmd_to)},
2472 {"$SR", cc(cmd_sr)},
2473 {"$UserCommand", cc(cmd_usercommand)},
2477 struct command peercmds[] =
2479 {"$MyNick", cc(cmd_mynick)},
2480 {"$Lock", cc(cmd_peerlock)},
2481 {"$Direction", cc(cmd_direction)},
2482 {"$Key", cc(cmd_key)},
2483 {"$FileLength", cc(cmd_filelength)},
2484 {"$Error", cc(cmd_error)},
2485 {"$MaxedOut", cc(cmd_maxedout)},
2486 {"$Get", cc(cmd_get)},
2487 {"$Send", cc(cmd_send)},
2488 {"$Supports", cc(cmd_supports)},
2489 {"$GetBlock", cc(cmd_getblock)},
2490 {"$UGetBlock", cc(cmd_getblock)},
2491 {"$GetZBlock", cc(cmd_getblock)},
2492 {"$UGetZBlock", cc(cmd_getblock)},
2493 {"$ADCGET", cc(cmd_adcget)},
2494 {"$ADCSND", cc(cmd_adcsnd), 1},
2495 {"$Sending", cc(cmd_sending), 1},
2500 static void dctransdetach(struct transfer *transfer, struct dcpeer *peer)
2502 CBUNREG(transfer, trans_filterout, peer);
2505 peer->transfer = NULL;
2509 static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2517 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2519 if(sockqueuesize(peer->sk) < 65536)
2521 if((buf = transfergetdata(transfer, &bufsize)) != NULL)
2523 if(peer->compress == CPRS_NONE)
2525 sockqueue(peer->sk, buf, bufsize);
2526 } else if(peer->compress == CPRS_ZLIB) {
2527 cstr = peer->cprsdata;
2528 cstr->next_in = buf;
2529 cstr->avail_in = bufsize;
2530 while(cstr->avail_in > 0)
2532 cstr->next_out = outbuf;
2533 cstr->avail_out = sizeof(outbuf);
2534 if((ret = deflate(cstr, 0)) != Z_OK)
2536 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2540 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2545 if(peer->state == PEER_SYNC)
2547 if(peer->compress == CPRS_ZLIB)
2549 cstr = peer->cprsdata;
2550 cstr->next_in = NULL;
2554 cstr->next_out = outbuf;
2555 cstr->avail_out = sizeof(outbuf);
2556 ret = deflate(cstr, Z_FINISH);
2557 if((ret != Z_OK) && (ret != Z_STREAM_END))
2559 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2563 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2564 } while(ret != Z_STREAM_END);
2570 peer->state = PEER_CMD;
2572 transfersetstate(transfer, TRNS_HS);
2573 socksettos(peer->sk, confgetint("fnet", "fnptos"));
2574 peer->sk->writecb = NULL;
2581 static void dctransendofdata(struct transfer *transfer, struct dcpeer *peer)
2583 peer->state = PEER_SYNC;
2584 dctransgotdata(transfer, peer);
2587 static void dcwantdata(struct transfer *transfer, struct dcpeer *peer)
2589 if(transferdatasize(transfer) < 65536)
2590 peer->sk->ignread = 0;
2593 static void transread(struct socket *sk, struct dcpeer *peer)
2597 struct transfer *transfer;
2599 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
2601 if(peer->transfer == NULL)
2607 transferputdata(peer->transfer, buf, bufsize);
2609 if(peer->transfer->curpos >= peer->transfer->size)
2611 transfer = peer->transfer;
2612 transferdetach(transfer);
2613 transferendofdata(transfer);
2616 if(transferdatasize(peer->transfer) > 65535)
2620 static void transerr(struct socket *sk, int err, struct dcpeer *peer)
2622 struct transfer *transfer;
2624 if((transfer = peer->transfer) == NULL)
2629 transferdetach(transfer);
2630 transferendofdata(transfer);
2633 static void transwrite(struct socket *sk, struct dcpeer *peer)
2635 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
2637 if(peer->transfer == NULL)
2642 dctransgotdata(peer->transfer, peer);
2645 static void udpread(struct socket *sk, void *data)
2647 char *buf, *p, *p2, *hashbuf;
2648 size_t buflen, hashlen;
2649 char *nick, *filename, *hubname;
2651 struct fnetnode *fn, *myfn;
2654 wchar_t *wnick, *wfile;
2657 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
2659 buf = srealloc(buf, buflen + 1);
2661 if(!strncmp(buf, "$SR ", 4))
2665 if((p2 = strchr(p, ' ')) == NULL)
2673 if((p2 = strchr(p, 5)) == NULL)
2680 if((p2 = strchr(p, ' ')) == NULL)
2688 if((p2 = strchr(p, '/')) == NULL)
2696 if((p2 = strchr(p, 5)) == NULL)
2703 if((p2 = strstr(p, " (")) == NULL)
2709 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
2714 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
2722 if(!strncmp(hubname, "TTH:", 4))
2724 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2727 hash = newhash(L"TTH", 24, hashbuf);
2731 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2733 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
2735 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
2748 sr = newsrchres(&dcnet, wfile, wnick);
2749 if(sr->peernick != NULL)
2751 sr->peernick = swcsdup(wnick);
2757 getfnetnode(sr->fn = myfn);
2766 static void hubread(struct socket *sk, struct fnetnode *fn)
2773 hub = (struct dchub *)fn->data;
2774 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
2776 if(hub->inbufdata > 500000) /* Discard possible malicious data */
2778 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
2779 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
2781 p = hub->inbuf + hub->inbufdata;
2782 hub->inbufdata += datalen;
2783 while((datalen > 0) && ((p = memchr(p, '|', datalen)) != NULL))
2786 newqcmd(&hub->queue, hub->inbuf);
2787 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
2788 datalen = hub->inbufdata;
2793 static void huberr(struct socket *sk, int err, struct fnetnode *fn)
2798 static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
2804 if((buf = icwcstombs(newnick, DCCHARSET)) == NULL)
2806 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
2811 if(hub == NULL) /* Not yet connected */
2816 if(hub->nativenick != NULL)
2817 free(hub->nativenick);
2818 hub->nativenick = buf;
2822 static struct dchub *newdchub(struct fnetnode *fn)
2826 new = smalloc(sizeof(*new));
2827 memset(new, 0, sizeof(*new));
2829 if(hubsetnick(fn, fn->mynick))
2830 fnetsetnick(fn, L"DoldaConnectUser-IN");
2831 /* IN as in Invalid Nick */
2835 static struct dcpeer *newdcpeer(struct socket *sk)
2839 new = smalloc(sizeof(*new));
2840 memset(new, 0, sizeof(*new));
2841 new->transfer = NULL;
2853 static void freedcpeer(struct dcpeer *peer)
2856 struct qcommand *qcmd;
2861 if(peer->next != NULL)
2862 peer->next->prev = peer->prev;
2863 if(peer->prev != NULL)
2864 peer->prev->next = peer->next;
2865 if(peer->transfer != NULL)
2867 if(peer->transfer->dir == TRNSD_UP)
2868 peer->transfer->close = 1;
2869 if(peer->transfer->dir == TRNSD_DOWN)
2870 resettransfer(peer->transfer);
2871 transferdetach(peer->transfer);
2873 if(peer->sk->data == peer)
2874 peer->sk->data = NULL;
2875 peer->sk->readcb = NULL;
2876 peer->sk->writecb = NULL;
2877 peer->sk->errcb = NULL;
2880 if(peer->supports != NULL)
2882 for(i = 0; peer->supports[i] != NULL; i++)
2883 free(peer->supports[i]);
2884 free(peer->supports);
2886 if(peer->inbuf != NULL)
2888 if(peer->key != NULL)
2890 if(peer->wcsname != NULL)
2891 free(peer->wcsname);
2892 if(peer->nativename != NULL)
2893 free(peer->nativename);
2894 if(peer->fn != NULL)
2895 putfnetnode(peer->fn);
2896 while((qcmd = ulqcmd(&peer->queue)) != NULL)
2902 static void hubconnect(struct fnetnode *fn)
2904 fn->sk->readcb = (void (*)(struct socket *, void *))hubread;
2905 fn->sk->errcb = (void (*)(struct socket *, int, void *))huberr;
2907 fn->data = newdchub(fn);
2912 static void hubdestroy(struct fnetnode *fn)
2915 struct qcommand *qcmd;
2917 hub = (struct dchub *)fn->data;
2920 if(fn->sk->data == fn)
2922 fn->sk->data = NULL;
2928 while((qcmd = ulqcmd(&hub->queue)) != NULL)
2930 if(hub->nativename != NULL)
2931 free(hub->nativename);
2932 if(hub->nativenick != NULL)
2933 free(hub->nativenick);
2934 if(hub->inbuf != NULL)
2939 static wchar_t *dcbasename(wchar_t *filename)
2943 if((ret = wcsrchr(filename, L'\\')) != NULL)
2948 static struct transferiface dctransfer =
2950 .detach = (void (*)(struct transfer *, void *))dctransdetach,
2951 .gotdata = (void (*)(struct transfer *, void *))dctransgotdata,
2952 .endofdata = (void (*)(struct transfer *, void *))dctransendofdata,
2953 .wantdata = (void (*)(struct transfer *, void *))dcwantdata
2956 static struct fnet dcnet =
2959 .connect = hubconnect,
2960 .destroy = hubdestroy,
2961 .setnick = hubsetnick,
2962 .reqconn = hubreqconn,
2963 .sendchat = hubsendchat,
2964 .search = hubsearch,
2965 .filebasename = dcbasename
2968 static void peerread(struct socket *sk, struct dcpeer *peer)
2972 struct command *cmd;
2974 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
2976 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
2977 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
2979 peer->inbufdata += datalen;
2980 if(peer->state == PEER_CMD)
2983 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
2986 newqcmd(&peer->queue, peer->inbuf);
2987 for(cmd = peercmds; cmd->handler != NULL; cmd++)
2989 if(!memcmp(peer->inbuf, cmd->name, strlen(cmd->name)) && ((peer->inbuf[strlen(cmd->name)] == ' ') || (peer->inbuf[strlen(cmd->name)] == '|')))
2992 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
2995 peer->state = PEER_STOP;
2999 } else if(peer->state == PEER_TTHL) {
3004 static void peererror(struct socket *sk, int err, struct dcpeer *peer)
3009 static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
3011 struct dcpeer *peer;
3018 peer = newdcpeer(sk);
3021 sk->readcb = (void (*)(struct socket *, void *))peerread;
3022 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3024 socksettos(sk, confgetint("fnet", "fnptos"));
3030 static void peeraccept(struct socket *sk, struct socket *newsk, void *data)
3032 struct dcpeer *peer;
3034 peer = newdcpeer(newsk);
3036 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3037 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3039 socksettos(newsk, confgetint("fnet", "fnptos"));
3042 static void updatehmlist(void)
3044 int i, lev, ic, ret;
3045 struct sharecache *node;
3046 char *buf, *buf2, numbuf[32];
3047 size_t bufsize, bufdata;
3051 buf = smalloc(bufsize = 65536);
3052 node = shareroot->child;
3057 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3059 for(i = 0; i < lev; i++)
3061 bufcat(buf, buf2, strlen(buf2));
3063 if(node->f.b.type == FILE_REG)
3066 sprintf(numbuf, "%i", node->size);
3067 bufcat(buf, numbuf, strlen(numbuf));
3074 if((node->child != NULL) && !ic)
3078 } else if(node->next != NULL) {
3081 while(node->next == NULL)
3084 node = node->parent;
3085 if(node == shareroot)
3088 if(node == shareroot)
3093 if(hmlistname != NULL)
3098 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3099 if((fd = mkstemp(hmlistname)) < 0)
3101 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3106 * I do not want to implement a good Huffman encoder, and it's not
3107 * like Huffman encoding actually yields any impressive results
3108 * for DC file lists anyway, so I'll just output a bogus
3109 * tree. Implement a good encoder if you want to.
3111 write(fd, "HE3\r\0", 5);
3112 write(fd, &bufdata, 4);
3114 write(fd, &ibuf, 2);
3116 for(i = 0; i < 256; i++)
3119 write(fd, &ibuf, 1);
3121 for(i = 0; i < 256; i++)
3123 for(buf2 = buf; bufdata > 0;)
3125 if((ret = write(fd, buf2, bufdata)) < 0)
3127 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3138 static struct xmlent
3145 /* {L'\'', L"""}, Emulate DC++ escaping by omitting this. */
3149 static wchar_t *escapexml(wchar_t *src)
3151 static wchar_t *buf = NULL;;
3154 size_t bufsize, bufdata;
3160 bufsize = bufdata = 0;
3161 for(; *src != L'\0'; src++)
3164 if((c > 0) && (c < 32))
3166 bufcat(buf, L"&#", 2);
3167 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3168 bufcat(buf, nbuf, ret);
3169 addtobuf(buf, L';');
3171 for(ent = entities; ent->ent != NULL; ent++)
3175 bufcat(buf, ent->ent, wcslen(ent->ent));
3179 if(ent->ent == NULL)
3180 addtobuf(buf, *src);
3183 addtobuf(buf, L'\0');
3187 static void updatexmllist(void)
3191 char cidbuf[14], *namebuf;
3193 struct sharecache *node;
3195 if(xmllistname != NULL)
3197 unlink(xmllistname);
3200 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3201 if((fd = mkstemp(xmllistname)) < 0)
3203 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3208 if((fs = fdopen(fd, "w")) == NULL)
3210 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3211 unlink(xmllistname);
3217 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3218 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3219 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3221 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, DCIDFULL);
3223 node = shareroot->child;
3227 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3229 for(i = 0; i < lev; i++)
3231 if(node->child != NULL)
3233 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3238 fprintf(fs, "<File Name=\"%s\" Size=\"%i\"", namebuf, node->size);
3239 if(node->f.b.hastth)
3241 hashbuf = base32encode(node->hashtth, 24);
3242 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3245 fprintf(fs, "/>\r\n");
3247 while(node->next == NULL)
3249 node = node->parent;
3250 if(node == shareroot)
3255 for(i = 0; i < lev; i++)
3257 fprintf(fs, "</Directory>\r\n");
3260 if(node == shareroot)
3266 #ifdef DCPP_MASQUERADE
3267 fprintf(fs, "</FileListing>");
3269 fprintf(fs, "</FileListing>\r\n");
3274 static void updatexmlbz2list(void)
3283 if(xmllistname == NULL)
3285 if((in = fopen(xmllistname, "r")) == NULL)
3287 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3290 if(xmlbz2listname != NULL)
3292 unlink(xmlbz2listname);
3293 free(xmlbz2listname);
3295 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3296 if((fd = mkstemp(xmlbz2listname)) < 0)
3298 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3299 free(xmlbz2listname);
3300 xmlbz2listname = NULL;
3304 if((real = fdopen(fd, "w")) == NULL)
3306 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3308 unlink(xmlbz2listname);
3309 free(xmlbz2listname);
3310 xmlbz2listname = NULL;
3314 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3317 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3319 unlink(xmlbz2listname);
3320 free(xmlbz2listname);
3321 xmlbz2listname = NULL;
3327 bufdata = fread(buf, 1, sizeof(buf), in);
3328 BZ2_bzWrite(&err, out, buf, bufdata);
3331 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3335 static int shareupdate(unsigned long long uusharesize, void *data)
3343 static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3346 struct command *cmd;
3348 if((p = strchr(qcmd->string, ' ')) != NULL)
3350 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3352 if(!strcmp(cmd->name, qcmd->string))
3355 if(cmd->handler != NULL)
3356 cmd->handler(sk, data, qcmd->string, p);
3359 flog(LOG_DEBUG, "Unimplemented DC command: %s \"%s\"", qcmd->string, p?p:"noargs");
3363 static int run(void)
3365 struct fnetnode *fn, *nextfn;
3367 struct dcpeer *peer, *nextpeer;
3368 struct qcommand *qcmd;
3372 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3375 if(fn->fnet != &dcnet)
3377 if(fn->data == NULL)
3379 hub = (struct dchub *)fn->data;
3380 if((qcmd = ulqcmd(&hub->queue)) != NULL)
3382 if(*qcmd->string == '$')
3384 if((fn->sk != NULL) && (fn->sk->state == SOCK_EST))
3385 dispatchcommand(qcmd, hubcmds, fn->sk, fn);
3386 } else if(*qcmd->string != 0) {
3387 hubrecvchat(fn->sk, fn, NULL, qcmd->string);
3394 for(peer = peers; peer != NULL; peer = nextpeer)
3396 nextpeer = peer->next;
3397 if((qcmd = ulqcmd(&peer->queue)) != NULL)
3399 if(*qcmd->string == '$')
3400 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3409 static void preinit(int hup)
3416 static int updateudpport(struct configvar *var, void *uudata)
3418 struct sockaddr_in addr;
3419 struct socket *newsock;
3421 memset(&addr, 0, sizeof(addr));
3422 addr.sin_family = AF_INET;
3423 addr.sin_port = htons(var->val.num);
3424 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3426 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3429 newsock->readcb = udpread;
3436 static int updatetcpport(struct configvar *var, void *uudata)
3438 struct sockaddr_in addr;
3439 struct socket *newsock;
3441 memset(&addr, 0, sizeof(addr));
3442 addr.sin_family = AF_INET;
3443 addr.sin_port = htons(var->val.num);
3444 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3445 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3452 static int init(int hup)
3454 struct sockaddr_in addr;
3458 GCBREG(sharechangecb, shareupdate, NULL);
3463 addr.sin_family = AF_INET;
3464 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3465 addr.sin_port = htons(confgetint("dc", "udpport"));
3466 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3468 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3471 udpsock->readcb = udpread;
3472 addr.sin_port = htons(confgetint("dc", "tcpport"));
3473 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3474 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3475 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3476 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3477 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3482 static void terminate(void)
3484 if(hmlistname != NULL)
3489 if(xmllistname != NULL)
3491 unlink(xmllistname);
3494 if(xmlbz2listname != NULL)
3496 unlink(xmlbz2listname);
3497 free(xmlbz2listname);
3501 static struct configvar myvars[] =
3503 {CONF_VAR_STRING, "desc", {.str = L""}},
3504 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
3505 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
3506 {CONF_VAR_INT, "udpport", {.num = 0}},
3507 {CONF_VAR_INT, "tcpport", {.num = 0}},
3511 static struct module me =
3520 .terminate = terminate,