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, fetchingtthl, 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");
679 peer->fetchingtthl = 1;
685 if(forkfilter(peer->transfer))
687 flog(LOG_WARNING, "could not fork filter for transfer %i: %s", peer->transfer->id, strerror(errno));
691 CBREG(peer->transfer, trans_filterout, (int (*)(struct transfer *, wchar_t *, wchar_t *, void *))trresumecb, NULL, peer);
694 if(supports(peer, "adcget"))
696 qstr(peer->sk, "$ADCGET");
697 sendadc(peer->sk, "file");
698 if((buf = getadcid(peer)) == NULL)
700 transferseterror(peer->transfer, TRNSE_NOTFOUND);
704 sendadc(peer->sk, buf);
706 sendadcf(peer->sk, "%i", peer->transfer->curpos);
707 sendadcf(peer->sk, "%i", peer->transfer->size - peer->transfer->curpos);
709 } else if(supports(peer, "xmlbzlist")) {
710 if((buf = icswcstombs(peer->transfer->path, "UTF-8", NULL)) == NULL)
712 transferseterror(peer->transfer, TRNSE_NOTFOUND);
716 qstrf(peer->sk, "$UGetBlock %i %i %s|", peer->transfer->curpos, peer->transfer->size - peer->transfer->curpos, buf);
718 if((buf = icswcstombs(peer->transfer->path, DCCHARSET, NULL)) == NULL)
720 transferseterror(peer->transfer, TRNSE_NOTFOUND);
724 qstrf(peer->sk, "$Get %s$%i|", buf, peer->transfer->curpos + 1);
728 static void sendmyinfo(struct socket *sk, struct fnetnode *fn)
732 struct fnetnode *cfn;
736 qstrf(sk, "$MyINFO $ALL %s ", hub->nativenick);
737 buf = tr(icswcstombs(confgetstr("dc", "desc"), DCCHARSET, "Charset_conv_failure"), "$_|_");
738 qstrf(sk, "%s", buf);
740 for(cfn = fnetnodes; cfn != NULL; cfn = cfn->next)
742 if((cfn->state == FNN_EST) || (cfn->state == FNN_HS))
744 if(cfn->regstatus == FNNS_OP)
746 else if(cfn->regstatus == FNNS_REG)
752 qstrf(sk, "<%s V:%s,M:%c,H:%i/%i/%i,S:%i>",
755 (tcpsock == NULL)?'P':'A',
757 confgetint("transfer", "slots")
760 buf = tr(icswcstombs(confgetstr("dc", "speedstring"), DCCHARSET, "Charset_conv_failure"), "$_|_");
761 qstrf(sk, "%s\x01$", buf);
762 buf = tr(icswcstombs(confgetstr("dc", "email"), DCCHARSET, "Charset_conv_failure"), "$_|_");
763 qstrf(sk, "%s$", buf);
764 qstrf(sk, "%llu$|", sharesize);
767 static void hubhandleaction(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
772 if(!strcmp(cmd, "$Lock"))
774 qstrf(sk, "$ValidateNick %s|", hub->nativenick);
775 } else if(!strcmp(cmd, "$Hello")) {
776 if(fn->state == FNN_HS)
778 qstrf(sk, "$Version 1,0091|");
779 qstrf(sk, "$GetNickList|");
781 fnetsetstate(fn, FNN_EST);
783 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
788 static void cmd_lock(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
795 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
797 if((p = strchr(args, ' ')) != NULL)
801 #ifdef DCPP_MASQUERADE
802 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock |");
804 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock|");
807 key = dcmakekey(args);
808 qstrf(sk, "$Key %s|", key);
810 hubhandleaction(sk, fn, cmd, args);
813 static void cmd_hubname(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
819 if(hub->nativename == NULL)
820 free(hub->nativename);
821 hub->nativename = sstrdup(args);
822 buf = icmbstowcs(args, DCCHARSET);
823 fnetsetname(fn, (buf == NULL)?L"Hubname conv error":buf);
826 hubhandleaction(sk, fn, cmd, args);
829 static void cmd_hello(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
835 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
837 if(strcmp(args, hub->nativenick) && (fnetfindpeer(fn, nick) == NULL))
838 fnetaddpeer(fn, nick, nick);
840 hubhandleaction(sk, fn, cmd, args);
843 static void cmd_quit(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
846 struct fnetpeer *peer;
850 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
852 if((peer = fnetfindpeer(fn, nick)) != NULL)
855 hubhandleaction(sk, fn, cmd, args);
858 static void cmd_nicklist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
863 struct fnetpeer *peer, *npeer;
866 for(peer = fn->peers; peer != NULL; peer = peer->next)
867 peer->flags.b.delete = 1;
868 while((p = strstr(args, "$$")) != NULL)
871 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
873 if((peer = fnetfindpeer(fn, buf)) == NULL)
874 peer = fnetaddpeer(fn, buf, buf);
876 peer->flags.b.delete = 0;
878 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
882 for(peer = fn->peers; peer != NULL; peer = npeer)
885 if(peer->flags.b.delete)
888 hubhandleaction(sk, fn, cmd, args);
891 static void cmd_oplist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
896 struct fnetpeer *peer;
899 for(peer = fn->peers; peer != NULL; peer = peer->next)
900 peer->flags.b.op = 0;
901 while((p = strstr(args, "$$")) != NULL)
904 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
906 if((peer = fnetfindpeer(fn, buf)) != NULL)
907 peer->flags.b.op = 1;
912 hubhandleaction(sk, fn, cmd, args);
915 static void cmd_myinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
918 wchar_t *buf, *wp, *wp2;
920 struct fnetpeer *peer;
925 if(strncmp(p, "$ALL ", 5))
928 if((p2 = strchr(p, ' ')) == NULL)
931 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
933 if((peer = fnetfindpeer(fn, buf)) == NULL)
934 peer = fnetaddpeer(fn, buf, buf);
937 if((p2 = strstr(p, "$ $")) == NULL)
940 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
942 if((wcslen(buf) > 0) && (buf[wcslen(buf) - 1] == L'>') && ((wp = wcschr(buf, L'<')) != NULL))
944 buf[wcslen(buf) - 1] = L'\0';
946 if((wp2 = wcschr(wp, L' ')) != NULL)
949 fnetpeersetstr(peer, L"dc-client", wp);
953 if((wp2 = wcschr(wp, L',')) != NULL)
957 swprintf(abuf, 10, L"dc-tag-%lc", wp[0]);
958 fnetpeersetstr(peer, abuf, wp + 2);
960 } while(wp2 != NULL);
963 fnetpeersetstr(peer, L"descr", buf);
966 if((p2 = strchr(p, '$')) == NULL)
969 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
971 fnetpeersetstr(peer, L"dc-speed", buf);
974 if((p2 = strchr(p, '$')) == NULL)
977 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
979 fnetpeersetstr(peer, L"email", buf);
984 fnetpeersetlnum(peer, L"share", strtoll(p, NULL, 10));
985 hubhandleaction(sk, fn, cmd, args);
988 /* I do not implement the fully in that I do not disconnect from the
989 * old hub. I do this since I believe that if the hub owner really
990 * wants to get rid of us, then it is his responsibility to disconnect
992 static void cmd_forcemove(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
995 struct fnetnode *newfn;
999 if(strchr(args, ':') == NULL)
1001 args = strcpy(smalloc(strlen(args) + 5), args);
1002 strcat(args, ":411");
1007 if((newfn = fnetinitconnect(L"dc", args, NULL)) != NULL)
1009 linkfnetnode(newfn);
1012 hubhandleaction(sk, fn, cmd, args);
1017 static char *getdcpath(struct sharecache *node, size_t *retlen)
1022 if(node->parent == NULL)
1024 if(node->parent == shareroot)
1026 if((buf = icwcstombs(node->name, DCCHARSET)) == NULL)
1029 *retlen = strlen(buf);
1032 if((buf2 = icwcstombs(node->name, DCCHARSET)) == NULL)
1034 if((buf = getdcpath(node->parent, &len)) == NULL)
1039 len2 = strlen(buf2);
1040 buf = srealloc(buf, len + 1 + len2 + 1);
1042 strcpy(buf + len, buf2);
1043 buf[len + len2] = 0;
1046 *retlen = len + len2;
1052 * This is the main share searching function for Direct Connect
1053 * peers. Feel free to optimize it if you feel the need for it. I
1054 * haven't ever seen it take any noticable CPU time anyway, so I
1055 * haven't felt that need.
1057 * It may feel dubious to just return the directory when all terms are
1058 * satisfied rather than all the files in it, but it really benefits
1059 * everyone: Less cycles used for us, less UDP squelching for active
1060 * searchers, and less bandwidth waste for hubs when serving passive
1063 static void cmd_search(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1068 char *prefix, *infix, *postfix, *buf, *buf2;
1070 struct sockaddr_in addr;
1071 struct sharecache *node;
1072 int minsize, maxsize;
1074 int termnum, satisfied, skipcheck;
1075 int level, tersat[32];
1080 if((p = strchr(args, ' ')) == NULL)
1084 memset(terms, 0, sizeof(terms));
1085 prefix = infix = postfix = NULL;
1089 if(!strncmp(args, "Hub:", 4))
1091 if(!strcmp(cmd, "$MultiSearch"))
1093 if(!strcmp(args + 4, hub->nativenick))
1095 prefix = sprintf2("$SR %s ", hub->nativenick);
1096 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1097 postfix = sprintf2(" (%s)\005%s|", formataddress(fn->sk->remote, fn->sk->remotelen), args + 4);
1101 if((p2 = strchr(args, ':')) == NULL)
1104 addr.sin_family = AF_INET;
1105 if(!inet_aton(args, &addr.sin_addr))
1107 addr.sin_port = htons(atoi(p2));
1108 prefix = sprintf2("$SR %s ", hub->nativenick);
1109 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1110 postfix = sprintf2(" (%s)|", formataddress(fn->sk->remote, fn->sk->remotelen));
1111 netdgramconn(dsk = netdupsock(udpsock), (struct sockaddr *)&addr, sizeof(addr));
1114 minsize = maxsize = -1;
1123 if((*(p++) == 'T') && (minsize == 0))
1130 if((p2 = strchr(p, '?')) == NULL)
1145 if((*p2 == 0) || (*p2 == '$'))
1153 if(!dotth && !strncmp(p, "TTH:", 4))
1156 if((buf = base32decode(p + 4, &buflen)) == NULL)
1160 memcpy(hashtth, buf, 24);
1163 if((terms[termnum] = icmbstowcs(p, DCCHARSET)) != NULL)
1174 node = shareroot->child;
1176 for(i = 0; i < termnum; i++)
1182 if(node->f.b.type == FILE_REG)
1184 if((minsize >= 0) && (node->size < minsize))
1186 if((maxsize >= 0) && (node->size > maxsize))
1189 if(!skipcheck && dotth)
1191 if((node->f.b.type != FILE_REG) || (node->f.b.hastth && memcmp(hashtth, node->hashtth, 24)))
1196 for(i = 0; i < termnum; i++)
1200 if(wcsexists(node->name, terms[i]))
1204 } else if(node->child == NULL) {
1209 if(!skipcheck && (satisfied == termnum))
1211 if((buf = getdcpath(node, NULL)) != NULL)
1213 if(node->f.b.hastth)
1215 buf2 = base32encode(node->hashtth, 24);
1216 qstrf(dsk, "%s%s\005%i%sTTH:%.39s%s", prefix, buf, node->size, infix, buf2, postfix);
1219 qstrf(dsk, "%s%s\005%i%s%s%s", prefix, buf, node->size, infix, hub->nativename, postfix);
1224 if((!skipcheck && (satisfied == termnum)) || (node->child == NULL))
1226 while(node->next == NULL)
1228 if((node = node->parent) == shareroot)
1232 if(node == shareroot)
1234 for(i = 0; i < termnum; i++)
1236 if(tersat[i] >= level)
1249 hubhandleaction(sk, fn, cmd, args);
1260 for(i = 0; (i < 32) && (terms[i] != NULL); i++)
1264 static void cmd_connecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1268 struct socket *newsk;
1269 struct sockaddr_in addr;
1272 if((p = strchr(args, ' ')) == NULL)
1275 if(strcmp(args, hub->nativenick))
1277 addr.sin_family = AF_INET;
1279 if((p = strchr(args, ':')) == NULL)
1282 addr.sin_port = htons(atoi(p));
1283 if(!inet_aton(args, &addr.sin_addr))
1285 newsk = netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn);
1287 hubhandleaction(sk, fn, cmd, args);
1290 static void sendctm(struct socket *sk, char *nick)
1292 struct sockaddr *addr;
1297 if(sockgetremotename(tcpsock, &addr, &addrlen) < 0)
1299 if(addr->sa_family == AF_INET)
1300 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1302 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1306 static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1312 if((p = strchr(args, ' ')) == NULL)
1315 if(strcmp(p, hub->nativenick))
1318 expectpeer(args, fn);
1319 hubhandleaction(sk, fn, cmd, args);
1322 static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1325 struct fnetnode *node;
1330 for(node = fnetnodes; node != NULL; node = node->next)
1332 if(node->state == FNN_EST)
1335 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1336 hubhandleaction(sk, fn, cmd, args);
1339 static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1346 if((p2 = strchr(p, ' ')) == NULL)
1350 if((p2 = strchr(p, ' ')) == NULL)
1353 if(strcmp(p, "From:"))
1356 if((p2 = strstr(p, " $")) == NULL)
1360 hubrecvchat(fn->sk, fn, p, p2);
1361 hubhandleaction(sk, fn, cmd, args);
1364 static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1368 char *nick, *filename, *hubname;
1372 wchar_t *wnick, *wfile;
1376 if((p2 = strchr(p, ' ')) == NULL)
1381 if((p2 = strchr(p, 5)) == NULL)
1385 if((p2 = strchr(p, ' ')) == NULL)
1390 if((p2 = strchr(p, '/')) == NULL)
1395 if((p2 = strchr(p, 5)) == NULL)
1399 if((p2 = strstr(p, " (")) == NULL)
1402 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
1404 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
1409 sr = newsrchres(&dcnet, wfile, wnick);
1410 if(sr->peernick != NULL)
1412 sr->peernick = swcsdup(wnick);
1417 if(!strncmp(hubname, "TTH:", 4))
1419 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1422 sr->hash = newhash(L"TTH", 24, buf);
1426 getfnetnode(sr->fn = fn);
1429 hubhandleaction(sk, fn, cmd, args);
1432 static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1434 /* Do nothing for now. */
1437 static void cmd_getpass(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1440 struct wcspair *arg;
1444 for(arg = fn->args; arg != NULL; arg = arg->next)
1446 if(!wcscmp(arg->key, L"password"))
1449 if((arg == NULL) || ((mbspw = icwcstombs(arg->val, DCCHARSET)) == NULL))
1454 qstrf(sk, "$MyPass %s|", mbspw);
1456 fn->regstatus = FNNS_REG;
1457 hubhandleaction(sk, fn, cmd, args);
1460 static void cmd_logedin(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1465 fn->regstatus = FNNS_OP;
1466 hubhandleaction(sk, fn, cmd, args);
1469 static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1471 struct dcexppeer *expect;
1473 if(peer->nativename != NULL)
1474 free(peer->nativename);
1475 peer->nativename = sstrdup(args);
1476 if(peer->wcsname != NULL)
1477 free(peer->wcsname);
1478 if((peer->wcsname = icmbstowcs(peer->nativename, DCCHARSET)) == NULL)
1485 for(expect = expected; expect != NULL; expect = expect->next)
1487 if(!strcmp(expect->nick, args))
1494 peer->fn = expect->fn;
1495 getfnetnode(peer->fn);
1496 freeexppeer(expect);
1501 static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1505 struct transfer *transfer;
1507 if((p = strchr(args, ' ')) == NULL)
1510 if(!strcmp(args, "Upload"))
1512 if(!strcmp(args, "Download"))
1516 if((peer->transfer == NULL) || (mydir != peer->direction))
1521 if(peer->direction == TRNSD_DOWN)
1524 if(peer->wcsname == NULL)
1529 peer->direction = mydir;
1530 if(peer->direction == TRNSD_UP)
1532 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1534 if((transfer = finddownload(peer->wcsname)) == NULL)
1539 transferattach(transfer, &dctransfer, peer);
1540 transfersetstate(transfer, TRNS_HS);
1542 transfersetnick(transfer, peer->wcsname);
1543 peer->transfer = transfer;
1546 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1547 if(peer->key != NULL)
1548 qstrf(sk, "$Key %s|", peer->key);
1549 if(peer->direction == TRNSD_DOWN)
1554 static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1557 struct transfer *transfer;
1559 if((p = strchr(args, ' ')) == NULL)
1562 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1564 key = dcmakekey(args);
1567 if(peer->wcsname == NULL)
1576 if((transfer = finddownload(peer->wcsname)) == NULL)
1578 peer->direction = TRNSD_UP;
1579 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1581 peer->direction = TRNSD_DOWN;
1582 transferattach(transfer, &dctransfer, peer);
1583 transfersetstate(transfer, TRNS_HS);
1585 transfersetnick(transfer, peer->wcsname);
1586 peer->transfer = transfer;
1587 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1588 qstrf(sk, "$Key %s|", key);
1590 if(peer->key != NULL)
1596 static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1601 static void startdl(struct dcpeer *peer)
1603 peer->state = PEER_TRNS;
1604 transferstartdl(peer->transfer, peer->sk);
1605 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1606 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
1609 static void startul(struct dcpeer *peer)
1611 peer->state = PEER_TRNS;
1612 transferstartul(peer->transfer, peer->sk);
1613 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
1616 static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1619 struct transfer *transfer;
1621 if(peer->transfer == NULL)
1627 if(peer->transfer->size != size)
1629 transfersetsize(peer->transfer, size);
1630 transfer = peer->transfer;
1632 trytransferbypeer(transfer->fnet, transfer->peerid);
1636 qstr(peer->sk, "$Send|");
1639 static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1641 if(peer->fetchingtthl)
1643 peer->fetchingtthl = 0;
1648 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1650 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1651 resettransfer(peer->transfer);
1657 static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1659 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1661 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1662 resettransfer(peer->transfer);
1675 {"MyList.DcLst", &hmlistname, updatehmlist},
1676 {"files.xml", &xmllistname, updatexmllist},
1677 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1681 static int openfilelist(char *name)
1686 for(i = 0; lists[i].name != NULL; i++)
1688 if(!strcmp(name, lists[i].name))
1692 if(lists[i].name == NULL)
1695 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1697 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1700 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1707 static struct sharecache *findbytth(char *tth32)
1711 struct sharecache *node;
1713 if((buf = base32decode(tth32, &buflen)) == NULL)
1720 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1722 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1729 static struct sharecache *resdcpath(char *path, char *charset, char sep)
1731 struct sharecache *node;
1738 if((p2 = strchr(p, sep)) != NULL)
1740 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1747 static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1752 struct sharecache *node;
1753 struct socket *lesk;
1757 if(peer->transfer == NULL)
1762 if((p = strchr(args, '$')) == NULL)
1768 if((offset = (atoi(p) - 1)) < 0)
1773 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1775 qstr(sk, "$Error Could not send file list|");
1778 } else if(fd >= 0) {
1779 if((buf2 = icsmbstowcs(args, DCCHARSET, NULL)) != NULL)
1780 transfersetpath(peer->transfer, buf2);
1786 qstr(sk, "$MaxedOut|");
1790 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1792 qstrf(sk, "$Error File not in share|");
1796 if((fd = opensharecache(node)) < 0)
1798 qstrf(sk, "$Error %s|", strerror(errno));
1802 buf = getfspath(node);
1803 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1804 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1806 transfersetpath(peer->transfer, buf2);
1809 if(fstat(fd, &sb) < 0)
1812 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1813 qstrf(sk, "$Error|");
1817 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1820 qstrf(sk, "$Error Offset out of range|");
1824 lesk = wrapsock(fd);
1825 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1827 qstrf(sk, "$FileLength %i|", peer->transfer->size);
1830 static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1832 if(peer->transfer == NULL)
1837 if(peer->transfer->localend == NULL)
1846 static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1851 size_t arrsize, arrdata;
1853 if(peer->supports != NULL)
1855 for(i = 0; peer->supports[i] != NULL; i++)
1856 free(peer->supports[i]);
1857 free(peer->supports);
1860 arrsize = arrdata = 0;
1864 if((p2 = strchr(p, ' ')) != NULL)
1868 addtobuf(arr, sstrdup(p));
1869 } while((p = p2) != NULL);
1870 addtobuf(arr, NULL);
1871 peer->supports = arr;
1874 static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1878 int start, numbytes;
1879 char *charset, *buf;
1881 struct sharecache *node;
1883 struct socket *lesk;
1885 if(peer->transfer == NULL)
1891 if((p2 = strchr(p, ' ')) == NULL)
1899 if((p2 = strchr(p, ' ')) == NULL)
1907 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
1910 charset = DCCHARSET;
1911 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
1912 initcompress(peer, CPRS_ZLIB);
1913 if(((fd = openfilelist(p)) < 0) && (errno != 0))
1915 qstr(sk, "$Error Could not send file list|");
1917 } else if(fd >= 0) {
1918 if((buf2 = icsmbstowcs(args, charset, NULL)) != NULL)
1919 transfersetpath(peer->transfer, buf2);
1925 qstr(sk, "$MaxedOut|");
1928 if((node = resdcpath(p, charset, '\\')) == NULL)
1930 qstr(sk, "$Error File not in cache|");
1933 if((fd = opensharecache(node)) < 0)
1935 qstrf(sk, "$Error %s|", strerror(errno));
1938 buf = getfspath(node);
1939 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1940 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1942 transfersetpath(peer->transfer, buf2);
1945 if(fstat(fd, &sb) < 0)
1948 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1949 qstr(sk, "$Error|");
1952 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
1955 qstr(sk, "$Error Offset out of range|");
1958 if((numbytes < 0) || (start + numbytes > sb.st_size))
1959 numbytes = sb.st_size - start;
1960 lesk = wrapsock(fd);
1961 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
1963 qstrf(sk, "$Sending %i|", numbytes);
1967 static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1971 int start, numbytes;
1972 struct sharecache *node;
1974 struct socket *lesk;
1978 if(peer->transfer == NULL)
1983 if((argv = parseadc(args)) == NULL)
1988 if(parrlen(argv) < 4)
1993 start = atoi(argv[2]);
1994 numbytes = atoi(argv[3]);
1997 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
1999 qstr(sk, "$Error Could not send file list|");
2001 } else if(fd >= 0) {
2002 if((wbuf = icsmbstowcs(argv[1], "UTF-8", NULL)) != NULL)
2003 transfersetpath(peer->transfer, wbuf);
2009 qstr(sk, "$MaxedOut|");
2012 if(!strncmp(argv[1], "TTH/", 4))
2014 if((node = findbytth(argv[1] + 4)) == NULL)
2016 qstr(sk, "$Error File not in cache|");
2020 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
2022 qstr(sk, "$Error File not in cache|");
2026 if((fd = opensharecache(node)) < 0)
2028 qstrf(sk, "$Error %s|", strerror(errno));
2031 buf = getfspath(node);
2032 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
2033 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
2035 transfersetpath(peer->transfer, wbuf);
2038 if(!strcmp(argv[0], "file"))
2040 for(i = 4; argv[i] != NULL; i++)
2042 if(!strcmp(argv[i], "ZL1"))
2043 initcompress(peer, CPRS_ZLIB);
2045 if(fstat(fd, &sb) < 0)
2047 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
2048 qstr(sk, "$Error|");
2051 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
2053 qstr(sk, "$Error Offset out of range|");
2056 if((numbytes < 0) || (start + numbytes > sb.st_size))
2057 numbytes = sb.st_size - start;
2058 lesk = wrapsock(fd);
2059 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2062 qstr(sk, "$ADCSND");
2063 sendadc(sk, "file");
2064 sendadc(sk, argv[1]);
2065 sendadcf(sk, "%i", start);
2066 sendadcf(sk, "%i", numbytes);
2067 if(peer->compress == CPRS_ZLIB)
2071 } else if(!strcmp(argv[0], "tthl")) {
2073 * XXX: Implement full TTHL support.
2075 * In the meantime, this is better than nothing, since it at
2076 * least allows fetching of the TTH root if it isn't already
2081 qstr(sk, "$Error no TTHL data for virtual files|");
2084 qstr(sk, "$ADCSND");
2085 sendadc(sk, "tthl");
2086 sendadc(sk, argv[1]);
2090 sockqueue(sk, node->hashtth, 24);
2092 qstr(sk, "$Error Namespace not implemented|");
2102 static void handletthl(struct dcpeer *peer)
2106 while(peer->inbufdata >= 24)
2108 pushtigertree(&peer->tth, peer->inbuf);
2109 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
2110 peer->curread += 24;
2112 if(peer->curread >= peer->totalsize)
2114 peer->state = PEER_CMD;
2115 synctigertree(&peer->tth);
2116 restigertree(&peer->tth, buf);
2117 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2122 static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2125 int start, numbytes;
2127 if(peer->transfer == NULL)
2132 if((argv = parseadc(args)) == NULL)
2137 if(parrlen(argv) < 4)
2142 start = atoi(argv[2]);
2143 numbytes = atoi(argv[3]);
2144 if(!strcmp(argv[0], "tthl"))
2146 if((start != 0) || (numbytes % 24 != 0))
2148 /* Weird. Bail out. */
2152 peer->state = PEER_TTHL;
2153 peer->totalsize = numbytes;
2155 peer->fetchingtthl = 0;
2156 inittigertree(&peer->tth);
2158 } else if(!strcmp(argv[0], "file")) {
2159 if(start != peer->transfer->curpos)
2164 if(start + numbytes != peer->transfer->size)
2166 transfersetsize(peer->transfer, start + numbytes);
2171 if(peer->inbufdata > 0)
2173 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2174 peer->inbufdata = 0;
2175 transread(sk, peer);
2178 /* We certainly didn't request this...*/
2187 static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2191 if(peer->transfer == NULL)
2196 numbytes = atoi(args);
2197 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2199 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2204 if(peer->inbufdata > 0)
2206 sockpushdata(sk, peer->inbuf, peer->inbufdata);
2207 peer->inbufdata = 0;
2208 transread(sk, peer);
2214 static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2219 hubhandleaction(sk, fn, cmd, args);
2223 static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2229 static int hubreqconn(struct fnetpeer *peer)
2234 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2239 if((hub = peer->fn->data) == NULL)
2244 if((mbsnick = icwcstombs(peer->id, DCCHARSET)) == NULL)
2245 return(1); /* Shouldn't happen, of course, but who knows... */
2248 sendctm(peer->fn->sk, mbsnick);
2249 expectpeer(mbsnick, peer->fn);
2251 qstrf(peer->fn->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
2257 static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2260 char *mbsstring, *mbsto;
2263 if((mbsto = icwcstombs(to, DCCHARSET)) == NULL)
2268 if((mbsstring = icwcstombs(string, DCCHARSET)) == NULL)
2273 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2280 if(strchr(mbsstring, '|') != NULL)
2291 qstrf(fn->sk, "<%s> %s|", hub->nativenick, mbsstring);
2293 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2296 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2303 static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2305 int minl, maxl, minr, maxr, retmin, retmax;
2310 findsizelimit(sexpr->l, &minl, &maxl);
2311 findsizelimit(sexpr->r, &minr, &maxr);
2312 retmin = (minl > minr)?minl:minr;
2313 if((maxl != -1) && (maxr != -1))
2314 retmax = (maxl < maxr)?maxl:maxr;
2323 findsizelimit(sexpr->l, &minl, &maxl);
2324 findsizelimit(sexpr->r, &minr, &maxr);
2325 retmin = (minl < minr)?minl:minr;
2326 if((maxl == -1) || (maxr == -1))
2329 retmax = (maxl > maxr)?maxl:maxr;
2332 findsizelimit(sexpr->l, &minl, &maxl);
2333 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2337 } else if((minl == 0) && (maxl != -1)) {
2340 } else if((minl != 0) && (maxl == -1)) {
2343 } else { /* This would yield two seperate intervals, which DC cannot handle */
2349 retmax = sexpr->d.n - 1;
2352 retmin = sexpr->d.n;
2353 retmax = sexpr->d.n;
2356 retmin = sexpr->d.n + 1;
2370 static struct hash *findsehash(struct sexpr *sexpr)
2372 struct hash *h1, *h2;
2377 if((h1 = findsehash(sexpr->l)) != NULL)
2379 if((h1 = findsehash(sexpr->r)) != NULL)
2383 h1 = findsehash(sexpr->l);
2384 h2 = findsehash(sexpr->r);
2389 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2390 return(sexpr->d.hash);
2397 static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2400 struct wcslist *list, *cur;
2401 char *sstr, *buf, *p;
2402 size_t sstrsize, sstrdata;
2403 struct sockaddr *name;
2405 int minsize, maxsize;
2409 if((fn->state != FNN_EST) || (fn->sk == NULL) || (fn->sk->state != SOCK_EST))
2411 list = findsexprstrs(srch->sexpr);
2412 findsizelimit(srch->sexpr, &minsize, &maxsize);
2413 hash = findsehash(srch->sexpr);
2414 if((minsize != 0) && (maxsize != -1))
2416 /* Choose either minsize or maxsize by trying to determine
2417 * which choice will be most restrictive. The result can be
2418 * approximative at best anyway, so don't try too hard... */
2419 if((50000000 - maxsize) > (minsize - 50000000))
2425 sstrsize = sstrdata = 0;
2426 if((hash != NULL) && (hash->len == 24))
2428 /* Prioritize hash searches above all else */
2429 bufcat(sstr, "F?T?0?9?TTH:", 12);
2430 buf = base32encode(hash->buf, hash->len);
2432 bufcat(sstr, buf, 39);
2437 sizebuf2(sstr, sstrdata + 32, 1);
2438 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
2439 } else if(maxsize != -1) {
2440 sizebuf2(sstr, sstrdata + 32, 1);
2441 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
2443 bufcat(sstr, "F?F?0?1?", 8);
2447 for(cur = list; cur != NULL; cur = cur->next)
2449 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2451 /* Can't find anything anyway if the search expression
2452 * requires characters outside DC's charset. There's
2453 * nothing technically wrong with the search itself,
2454 * however, so return success. This should be
2455 * considered as an optimization. */
2462 addtobuf(sstr, '$');
2464 * It probably doesn't hurt if buf contains any extra
2465 * dollar signs - it will just result in extra search
2466 * terms, and the extraneous results will be filtered by
2467 * the search layer anyway. It hurts if it contains any
2468 * pipes, though, so let's sell them for money.
2470 for(p = buf; *p; p++)
2475 bufcat(sstr, buf, strlen(buf));
2479 /* Will match all files... :-/ */
2480 addtobuf(sstr, '.');
2486 if(sockgetremotename(udpsock, &name, &namelen) < 0)
2488 flog(LOG_WARNING, "cannot get address of UDP socket");
2490 qstrf(fn->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
2494 qstrf(fn->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
2498 fn->lastsrch = time(NULL);
2506 #define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
2507 struct command hubcmds[] =
2509 {"$Lock", cc(cmd_lock)},
2510 {"$HubName", cc(cmd_hubname)},
2511 {"$Hello", cc(cmd_hello)},
2512 {"$Quit", cc(cmd_quit)},
2513 {"$NickList", cc(cmd_nicklist)},
2514 {"$OpList", cc(cmd_oplist)},
2515 {"$MyINFO", cc(cmd_myinfo)},
2516 {"$ForceMove", cc(cmd_forcemove)},
2517 {"$Search", cc(cmd_search)},
2518 {"$MultiSearch", cc(cmd_search)},
2519 {"$ConnectToMe", cc(cmd_connecttome)},
2520 {"$RevConnectToMe", cc(cmd_revconnecttome)},
2521 {"$GetNetInfo", cc(cmd_getnetinfo)},
2522 {"$To:", cc(cmd_to)},
2523 {"$SR", cc(cmd_sr)},
2524 {"$UserCommand", cc(cmd_usercommand)},
2525 {"$GetPass", cc(cmd_getpass)},
2526 {"$LogedIn", cc(cmd_logedin)}, /* sic */
2530 struct command peercmds[] =
2532 {"$MyNick", cc(cmd_mynick)},
2533 {"$Lock", cc(cmd_peerlock)},
2534 {"$Direction", cc(cmd_direction)},
2535 {"$Key", cc(cmd_key)},
2536 {"$FileLength", cc(cmd_filelength)},
2537 {"$Error", cc(cmd_error)},
2538 {"$MaxedOut", cc(cmd_maxedout)},
2539 {"$Get", cc(cmd_get)},
2540 {"$Send", cc(cmd_send)},
2541 {"$Supports", cc(cmd_supports)},
2542 {"$GetBlock", cc(cmd_getblock)},
2543 {"$UGetBlock", cc(cmd_getblock)},
2544 {"$GetZBlock", cc(cmd_getblock)},
2545 {"$UGetZBlock", cc(cmd_getblock)},
2546 {"$ADCGET", cc(cmd_adcget)},
2547 {"$ADCSND", cc(cmd_adcsnd), 1},
2548 {"$Sending", cc(cmd_sending), 1},
2553 static void dctransdetach(struct transfer *transfer, struct dcpeer *peer)
2555 CBUNREG(transfer, trans_filterout, peer);
2558 peer->transfer = NULL;
2562 static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2570 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2572 if(sockqueuesize(peer->sk) < 65536)
2574 if((buf = transfergetdata(transfer, &bufsize)) != NULL)
2576 if(peer->compress == CPRS_NONE)
2578 sockqueue(peer->sk, buf, bufsize);
2579 } else if(peer->compress == CPRS_ZLIB) {
2580 cstr = peer->cprsdata;
2581 cstr->next_in = buf;
2582 cstr->avail_in = bufsize;
2583 while(cstr->avail_in > 0)
2585 cstr->next_out = outbuf;
2586 cstr->avail_out = sizeof(outbuf);
2587 if((ret = deflate(cstr, 0)) != Z_OK)
2589 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2593 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2598 if(peer->state == PEER_SYNC)
2600 if(peer->compress == CPRS_ZLIB)
2602 cstr = peer->cprsdata;
2603 cstr->next_in = NULL;
2607 cstr->next_out = outbuf;
2608 cstr->avail_out = sizeof(outbuf);
2609 ret = deflate(cstr, Z_FINISH);
2610 if((ret != Z_OK) && (ret != Z_STREAM_END))
2612 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2616 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2617 } while(ret != Z_STREAM_END);
2623 peer->state = PEER_CMD;
2625 transfersetstate(transfer, TRNS_HS);
2626 socksettos(peer->sk, confgetint("fnet", "fnptos"));
2627 peer->sk->writecb = NULL;
2634 static void dctransendofdata(struct transfer *transfer, struct dcpeer *peer)
2636 peer->state = PEER_SYNC;
2637 dctransgotdata(transfer, peer);
2640 static void dcwantdata(struct transfer *transfer, struct dcpeer *peer)
2642 if(transferdatasize(transfer) < 65536)
2643 peer->sk->ignread = 0;
2646 static void transread(struct socket *sk, struct dcpeer *peer)
2650 struct transfer *transfer;
2652 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
2654 if(peer->transfer == NULL)
2660 transferputdata(peer->transfer, buf, bufsize);
2662 if(peer->transfer->curpos >= peer->transfer->size)
2664 transfer = peer->transfer;
2665 transferdetach(transfer);
2666 transferendofdata(transfer);
2669 if(transferdatasize(peer->transfer) > 65535)
2673 static void transerr(struct socket *sk, int err, struct dcpeer *peer)
2675 struct transfer *transfer;
2677 if((transfer = peer->transfer) == NULL)
2682 transferdetach(transfer);
2683 transferendofdata(transfer);
2686 static void transwrite(struct socket *sk, struct dcpeer *peer)
2688 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
2690 if(peer->transfer == NULL)
2695 dctransgotdata(peer->transfer, peer);
2698 static void udpread(struct socket *sk, void *data)
2700 char *buf, *p, *p2, *hashbuf;
2701 size_t buflen, hashlen;
2702 char *nick, *filename, *hubname;
2704 struct fnetnode *fn, *myfn;
2707 wchar_t *wnick, *wfile;
2710 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
2712 buf = srealloc(buf, buflen + 1);
2714 if(!strncmp(buf, "$SR ", 4))
2718 if((p2 = strchr(p, ' ')) == NULL)
2726 if((p2 = strchr(p, 5)) == NULL)
2733 if((p2 = strchr(p, ' ')) == NULL)
2741 if((p2 = strchr(p, '/')) == NULL)
2749 if((p2 = strchr(p, 5)) == NULL)
2756 if((p2 = strstr(p, " (")) == NULL)
2762 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
2767 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
2775 if(!strncmp(hubname, "TTH:", 4))
2777 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2780 hash = newhash(L"TTH", 24, hashbuf);
2784 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2786 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
2788 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
2801 sr = newsrchres(&dcnet, wfile, wnick);
2802 if(sr->peernick != NULL)
2804 sr->peernick = swcsdup(wnick);
2810 getfnetnode(sr->fn = myfn);
2819 static void hubread(struct socket *sk, struct fnetnode *fn)
2826 hub = (struct dchub *)fn->data;
2827 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
2829 if(hub->inbufdata > 500000) /* Discard possible malicious data */
2831 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
2832 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
2834 p = hub->inbuf + hub->inbufdata;
2835 hub->inbufdata += datalen;
2836 while((datalen > 0) && ((p = memchr(p, '|', datalen)) != NULL))
2839 newqcmd(&hub->queue, hub->inbuf);
2840 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
2841 datalen = hub->inbufdata;
2846 static void huberr(struct socket *sk, int err, struct fnetnode *fn)
2851 static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
2857 if((buf = icwcstombs(newnick, DCCHARSET)) == NULL)
2859 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
2864 if(hub == NULL) /* Not yet connected */
2869 if(hub->nativenick != NULL)
2870 free(hub->nativenick);
2871 hub->nativenick = buf;
2875 static struct dchub *newdchub(struct fnetnode *fn)
2879 new = smalloc(sizeof(*new));
2880 memset(new, 0, sizeof(*new));
2882 if(hubsetnick(fn, fn->mynick))
2883 fnetsetnick(fn, L"DoldaConnectUser-IN");
2884 /* IN as in Invalid Nick */
2888 static struct dcpeer *newdcpeer(struct socket *sk)
2892 new = smalloc(sizeof(*new));
2893 memset(new, 0, sizeof(*new));
2894 new->transfer = NULL;
2906 static void freedcpeer(struct dcpeer *peer)
2909 struct qcommand *qcmd;
2914 if(peer->next != NULL)
2915 peer->next->prev = peer->prev;
2916 if(peer->prev != NULL)
2917 peer->prev->next = peer->next;
2918 if(peer->transfer != NULL)
2920 if(peer->transfer->dir == TRNSD_UP)
2921 peer->transfer->close = 1;
2922 if(peer->transfer->dir == TRNSD_DOWN)
2923 resettransfer(peer->transfer);
2924 transferdetach(peer->transfer);
2926 if(peer->sk->data == peer)
2927 peer->sk->data = NULL;
2928 peer->sk->readcb = NULL;
2929 peer->sk->writecb = NULL;
2930 peer->sk->errcb = NULL;
2933 if(peer->supports != NULL)
2935 for(i = 0; peer->supports[i] != NULL; i++)
2936 free(peer->supports[i]);
2937 free(peer->supports);
2939 if(peer->inbuf != NULL)
2941 if(peer->key != NULL)
2943 if(peer->wcsname != NULL)
2944 free(peer->wcsname);
2945 if(peer->nativename != NULL)
2946 free(peer->nativename);
2947 if(peer->fn != NULL)
2948 putfnetnode(peer->fn);
2949 while((qcmd = ulqcmd(&peer->queue)) != NULL)
2955 static void hubconnect(struct fnetnode *fn)
2957 fn->sk->readcb = (void (*)(struct socket *, void *))hubread;
2958 fn->sk->errcb = (void (*)(struct socket *, int, void *))huberr;
2960 fn->data = newdchub(fn);
2965 static void hubdestroy(struct fnetnode *fn)
2968 struct qcommand *qcmd;
2970 hub = (struct dchub *)fn->data;
2973 if(fn->sk->data == fn)
2975 fn->sk->data = NULL;
2981 while((qcmd = ulqcmd(&hub->queue)) != NULL)
2983 if(hub->nativename != NULL)
2984 free(hub->nativename);
2985 if(hub->nativenick != NULL)
2986 free(hub->nativenick);
2987 if(hub->inbuf != NULL)
2992 static wchar_t *dcbasename(wchar_t *filename)
2996 if((ret = wcsrchr(filename, L'\\')) != NULL)
3001 static struct transferiface dctransfer =
3003 .detach = (void (*)(struct transfer *, void *))dctransdetach,
3004 .gotdata = (void (*)(struct transfer *, void *))dctransgotdata,
3005 .endofdata = (void (*)(struct transfer *, void *))dctransendofdata,
3006 .wantdata = (void (*)(struct transfer *, void *))dcwantdata
3009 static struct fnet dcnet =
3012 .connect = hubconnect,
3013 .destroy = hubdestroy,
3014 .setnick = hubsetnick,
3015 .reqconn = hubreqconn,
3016 .sendchat = hubsendchat,
3017 .search = hubsearch,
3018 .filebasename = dcbasename
3021 static void peerread(struct socket *sk, struct dcpeer *peer)
3025 struct command *cmd;
3027 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
3029 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
3030 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
3032 peer->inbufdata += datalen;
3033 if(peer->state == PEER_CMD)
3036 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
3039 newqcmd(&peer->queue, peer->inbuf);
3040 for(cmd = peercmds; cmd->handler != NULL; cmd++)
3042 if(!memcmp(peer->inbuf, cmd->name, strlen(cmd->name)) && ((peer->inbuf[strlen(cmd->name)] == ' ') || (peer->inbuf[strlen(cmd->name)] == '|')))
3045 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
3048 peer->state = PEER_STOP;
3052 } else if(peer->state == PEER_TTHL) {
3057 static void peererror(struct socket *sk, int err, struct dcpeer *peer)
3062 static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
3064 struct dcpeer *peer;
3071 peer = newdcpeer(sk);
3074 sk->readcb = (void (*)(struct socket *, void *))peerread;
3075 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3077 socksettos(sk, confgetint("fnet", "fnptos"));
3083 static void peeraccept(struct socket *sk, struct socket *newsk, void *data)
3085 struct dcpeer *peer;
3087 peer = newdcpeer(newsk);
3089 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3090 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3092 socksettos(newsk, confgetint("fnet", "fnptos"));
3095 static void updatehmlist(void)
3097 int i, lev, ic, ret;
3098 struct sharecache *node;
3099 char *buf, *buf2, numbuf[32];
3100 size_t bufsize, bufdata;
3104 buf = smalloc(bufsize = 65536);
3105 node = shareroot->child;
3110 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3112 for(i = 0; i < lev; i++)
3114 bufcat(buf, buf2, strlen(buf2));
3116 if(node->f.b.type == FILE_REG)
3119 sprintf(numbuf, "%i", node->size);
3120 bufcat(buf, numbuf, strlen(numbuf));
3127 if((node->child != NULL) && !ic)
3131 } else if(node->next != NULL) {
3134 while(node->next == NULL)
3137 node = node->parent;
3138 if(node == shareroot)
3141 if(node == shareroot)
3146 if(hmlistname != NULL)
3151 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3152 if((fd = mkstemp(hmlistname)) < 0)
3154 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3159 * I do not want to implement a good Huffman encoder, and it's not
3160 * like Huffman encoding actually yields any impressive results
3161 * for DC file lists anyway, so I'll just output a bogus
3162 * tree. Implement a good encoder if you want to.
3164 write(fd, "HE3\r\0", 5);
3165 write(fd, &bufdata, 4);
3167 write(fd, &ibuf, 2);
3169 for(i = 0; i < 256; i++)
3172 write(fd, &ibuf, 1);
3174 for(i = 0; i < 256; i++)
3176 for(buf2 = buf; bufdata > 0;)
3178 if((ret = write(fd, buf2, bufdata)) < 0)
3180 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3191 static struct xmlent
3198 /* {L'\'', L"""}, Emulate DC++ escaping by omitting this. */
3202 static wchar_t *escapexml(wchar_t *src)
3204 static wchar_t *buf = NULL;;
3207 size_t bufsize, bufdata;
3213 bufsize = bufdata = 0;
3214 for(; *src != L'\0'; src++)
3217 if((c > 0) && (c < 32))
3219 bufcat(buf, L"&#", 2);
3220 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3221 bufcat(buf, nbuf, ret);
3222 addtobuf(buf, L';');
3224 for(ent = entities; ent->ent != NULL; ent++)
3228 bufcat(buf, ent->ent, wcslen(ent->ent));
3232 if(ent->ent == NULL)
3233 addtobuf(buf, *src);
3236 addtobuf(buf, L'\0');
3240 static void updatexmllist(void)
3244 char cidbuf[14], *namebuf;
3246 struct sharecache *node;
3248 if(xmllistname != NULL)
3250 unlink(xmllistname);
3253 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3254 if((fd = mkstemp(xmllistname)) < 0)
3256 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3261 if((fs = fdopen(fd, "w")) == NULL)
3263 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3264 unlink(xmllistname);
3270 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3271 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3272 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3274 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, DCIDFULL);
3276 node = shareroot->child;
3280 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3282 for(i = 0; i < lev; i++)
3284 if(node->child != NULL)
3286 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3291 fprintf(fs, "<File Name=\"%s\" Size=\"%i\"", namebuf, node->size);
3292 if(node->f.b.hastth)
3294 hashbuf = base32encode(node->hashtth, 24);
3295 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3298 fprintf(fs, "/>\r\n");
3300 while(node->next == NULL)
3302 node = node->parent;
3303 if(node == shareroot)
3308 for(i = 0; i < lev; i++)
3310 fprintf(fs, "</Directory>\r\n");
3313 if(node == shareroot)
3319 #ifdef DCPP_MASQUERADE
3320 fprintf(fs, "</FileListing>");
3322 fprintf(fs, "</FileListing>\r\n");
3327 static void updatexmlbz2list(void)
3336 if(xmllistname == NULL)
3338 if((in = fopen(xmllistname, "r")) == NULL)
3340 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3343 if(xmlbz2listname != NULL)
3345 unlink(xmlbz2listname);
3346 free(xmlbz2listname);
3348 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3349 if((fd = mkstemp(xmlbz2listname)) < 0)
3351 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3352 free(xmlbz2listname);
3353 xmlbz2listname = NULL;
3357 if((real = fdopen(fd, "w")) == NULL)
3359 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3361 unlink(xmlbz2listname);
3362 free(xmlbz2listname);
3363 xmlbz2listname = NULL;
3367 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3370 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3372 unlink(xmlbz2listname);
3373 free(xmlbz2listname);
3374 xmlbz2listname = NULL;
3380 bufdata = fread(buf, 1, sizeof(buf), in);
3381 BZ2_bzWrite(&err, out, buf, bufdata);
3384 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3388 static int shareupdate(unsigned long long uusharesize, void *data)
3396 static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3399 struct command *cmd;
3401 if((p = strchr(qcmd->string, ' ')) != NULL)
3403 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3405 if(!strcmp(cmd->name, qcmd->string))
3408 if(cmd->handler != NULL)
3409 cmd->handler(sk, data, qcmd->string, p);
3412 flog(LOG_DEBUG, "Unimplemented DC command: %s \"%s\"", qcmd->string, p?p:"noargs");
3416 static int run(void)
3418 struct fnetnode *fn, *nextfn;
3420 struct dcpeer *peer, *nextpeer;
3421 struct qcommand *qcmd;
3425 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3428 if(fn->fnet != &dcnet)
3430 if(fn->data == NULL)
3432 hub = (struct dchub *)fn->data;
3433 if((qcmd = ulqcmd(&hub->queue)) != NULL)
3435 if(*qcmd->string == '$')
3437 if((fn->sk != NULL) && (fn->sk->state == SOCK_EST))
3438 dispatchcommand(qcmd, hubcmds, fn->sk, fn);
3439 } else if(*qcmd->string != 0) {
3440 hubrecvchat(fn->sk, fn, NULL, qcmd->string);
3447 for(peer = peers; peer != NULL; peer = nextpeer)
3449 nextpeer = peer->next;
3450 if((qcmd = ulqcmd(&peer->queue)) != NULL)
3452 if(*qcmd->string == '$')
3453 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3462 static void preinit(int hup)
3469 static int updateudpport(struct configvar *var, void *uudata)
3471 struct sockaddr_in addr;
3472 struct socket *newsock;
3474 memset(&addr, 0, sizeof(addr));
3475 addr.sin_family = AF_INET;
3476 addr.sin_port = htons(var->val.num);
3477 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3479 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3482 newsock->readcb = udpread;
3489 static int updatetcpport(struct configvar *var, void *uudata)
3491 struct sockaddr_in addr;
3492 struct socket *newsock;
3494 memset(&addr, 0, sizeof(addr));
3495 addr.sin_family = AF_INET;
3496 addr.sin_port = htons(var->val.num);
3497 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3498 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3505 static int init(int hup)
3507 struct sockaddr_in addr;
3511 GCBREG(sharechangecb, shareupdate, NULL);
3516 addr.sin_family = AF_INET;
3517 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3518 addr.sin_port = htons(confgetint("dc", "udpport"));
3519 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3521 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3524 udpsock->readcb = udpread;
3525 addr.sin_port = htons(confgetint("dc", "tcpport"));
3526 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3527 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3528 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3529 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3530 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3535 static void terminate(void)
3537 if(hmlistname != NULL)
3542 if(xmllistname != NULL)
3544 unlink(xmllistname);
3547 if(xmlbz2listname != NULL)
3549 unlink(xmlbz2listname);
3550 free(xmlbz2listname);
3554 static struct configvar myvars[] =
3556 {CONF_VAR_STRING, "desc", {.str = L""}},
3557 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
3558 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
3559 {CONF_VAR_INT, "udpport", {.num = 0}},
3560 {CONF_VAR_INT, "tcpport", {.num = 0}},
3564 static struct module me =
3573 .terminate = terminate,