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 == '\\') {
544 addtobuf(retbuf, NULL);
548 /* Macros useful in command handlers */
549 #define skipspace(s) ({if(((s) = strchr((s), ' ')) == NULL) return; else (s)++;})
550 #define qstr(sk, str) sockqueue(sk, str, strlen(str))
551 #define qstrf(sk, strandargs...) \
554 if((__buf__ = sprintf2(strandargs)) != NULL) { \
555 sockqueue(sk, __buf__, strlen(__buf__)); \
560 static char *tr(char *str, char *trans)
564 for(; *trans; trans += 2)
566 for(p = strchr(str, trans[0]); p != NULL; p = strchr(p, trans[0]))
572 static char *getadcid(struct dcpeer *peer)
577 if((peer->transfer->hash != NULL) && isdchash(peer->transfer->hash) && supports(peer, "tthf"))
579 buf = base32encode(peer->transfer->hash->buf, 24);
580 ret = sprintf2("TTH/%.39s", buf);
583 if((buf = icwcstombs(peer->transfer->path, "UTF-8")) == NULL)
585 ret = pathnmdc2adc(buf);
592 static int trresumecb(struct transfer *transfer, wchar_t *cmd, wchar_t *arg, struct dcpeer *peer)
594 if(!wcscmp(cmd, L"resume"))
598 flog(LOG_WARNING, "filter returned no position for \"resume\" on transfer %i", transfer->id);
601 transfer->curpos = wcstol(arg, NULL, 10);
610 static void sendmynick(struct dcpeer *peer)
614 hub = (peer->fn == NULL)?NULL:(peer->fn->data);
616 qstrf(peer->sk, "$MyNick %s|", icswcstombs(confgetstr("cli", "defnick"), DCCHARSET, "DoldaConnectUser-IN"));
618 qstrf(peer->sk, "$MyNick %s|", hub->nativenick);
621 static void sendpeerlock(struct dcpeer *peer)
623 #ifdef DCPP_MASQUERADE
624 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DCPLUSPLUS0.674ABCABC|");
626 qstrf(peer->sk, "$Lock EXTENDEDPROTOCOLABCABCABCABCABCABC Pk=DOLDA%sABCABCABC|", VERSION);
630 static void sendsupports(struct dcpeer *peer)
632 #ifdef DCPP_MASQUERADE
633 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG |");
635 qstr(peer->sk, "$Supports MiniSlots XmlBZList ADCGet TTHL TTHF GetZBlock ZLIG|");
639 static void requestfile(struct dcpeer *peer)
643 if(peer->transfer->size == -1)
645 if((buf = icswcstombs(peer->transfer->path, DCCHARSET, NULL)) == NULL)
647 transferseterror(peer->transfer, TRNSE_NOTFOUND);
651 /* The transfer will be restarted later from
652 * cmd_filelength when it detects that the sizes
654 qstrf(peer->sk, "$Get %s$1|", buf);
657 if((peer->transfer->hash == NULL) && !peer->notthl)
659 if(supports(peer, "adcget") && supports(peer, "tthl"))
661 qstr(peer->sk, "$ADCGET");
662 sendadc(peer->sk, "tthl");
663 if((buf = getadcid(peer)) == NULL)
665 transferseterror(peer->transfer, TRNSE_NOTFOUND);
669 sendadc(peer->sk, buf);
671 sendadc(peer->sk, "0");
672 sendadc(peer->sk, "-1");
679 if(forkfilter(peer->transfer))
681 flog(LOG_WARNING, "could not fork filter for transfer %i: %s", peer->transfer->id, strerror(errno));
685 CBREG(peer->transfer, trans_filterout, (int (*)(struct transfer *, wchar_t *, wchar_t *, void *))trresumecb, NULL, peer);
688 if(supports(peer, "adcget"))
690 qstr(peer->sk, "$ADCGET");
691 sendadc(peer->sk, "file");
692 if((buf = getadcid(peer)) == NULL)
694 transferseterror(peer->transfer, TRNSE_NOTFOUND);
698 sendadc(peer->sk, buf);
700 sendadcf(peer->sk, "%i", peer->transfer->curpos);
701 sendadcf(peer->sk, "%i", peer->transfer->size - peer->transfer->curpos);
703 } else if(supports(peer, "xmlbzlist")) {
704 if((buf = icswcstombs(peer->transfer->path, "UTF-8", NULL)) == NULL)
706 transferseterror(peer->transfer, TRNSE_NOTFOUND);
710 qstrf(peer->sk, "$UGetBlock %i %i %s|", peer->transfer->curpos, peer->transfer->size - peer->transfer->curpos, buf);
712 if((buf = icswcstombs(peer->transfer->path, DCCHARSET, NULL)) == NULL)
714 transferseterror(peer->transfer, TRNSE_NOTFOUND);
718 qstrf(peer->sk, "$Get %s$%i|", buf, peer->transfer->curpos + 1);
722 static void sendmyinfo(struct socket *sk, struct fnetnode *fn)
726 struct fnetnode *cfn;
730 qstrf(sk, "$MyINFO $ALL %s ", hub->nativenick);
731 buf = tr(icswcstombs(confgetstr("dc", "desc"), DCCHARSET, "Charset_conv_failure"), "$_|_");
732 qstrf(sk, "%s", buf);
734 for(cfn = fnetnodes; cfn != NULL; cfn = cfn->next)
736 if((cfn->state == FNN_EST) || (cfn->state == FNN_HS))
739 qstrf(sk, "<%s V:%s,M:%c,H:%i/0/0,S:%i>",
742 (tcpsock == NULL)?'P':'A',
744 confgetint("transfer", "slots")
747 buf = tr(icswcstombs(confgetstr("dc", "speedstring"), DCCHARSET, "Charset_conv_failure"), "$_|_");
748 qstrf(sk, "%s\x01$", buf);
749 buf = tr(icswcstombs(confgetstr("dc", "email"), DCCHARSET, "Charset_conv_failure"), "$_|_");
750 qstrf(sk, "%s$", buf);
751 qstrf(sk, "%llu$|", sharesize);
754 static void hubhandleaction(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
759 if(!strcmp(cmd, "$Lock"))
761 qstrf(sk, "$ValidateNick %s|", hub->nativenick);
762 } else if(!strcmp(cmd, "$Hello")) {
763 if(fn->state == FNN_HS)
765 qstrf(sk, "$Version 1,0091|");
766 qstrf(sk, "$GetNickList|");
768 fnetsetstate(fn, FNN_EST);
770 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
775 static void cmd_lock(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
782 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
784 if((p = strchr(args, ' ')) != NULL)
788 #ifdef DCPP_MASQUERADE
789 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock |");
791 qstrf(sk, "$Supports UserCommand NoGetINFO NoHello UserIP2 TTHSearch GetZBlock|");
794 key = dcmakekey(args);
795 qstrf(sk, "$Key %s|", key);
797 hubhandleaction(sk, fn, cmd, args);
800 static void cmd_hubname(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
806 if(hub->nativename == NULL)
807 free(hub->nativename);
808 hub->nativename = sstrdup(args);
809 buf = icmbstowcs(args, DCCHARSET);
810 fnetsetname(fn, (buf == NULL)?L"Hubname conv error":buf);
813 hubhandleaction(sk, fn, cmd, args);
816 static void cmd_hello(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
822 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
824 if(strcmp(args, hub->nativenick) && (fnetfindpeer(fn, nick) == NULL))
825 fnetaddpeer(fn, nick, nick);
827 hubhandleaction(sk, fn, cmd, args);
830 static void cmd_quit(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
833 struct fnetpeer *peer;
837 if((nick = icmbstowcs(args, DCCHARSET)) == NULL)
839 if((peer = fnetfindpeer(fn, nick)) != NULL)
842 hubhandleaction(sk, fn, cmd, args);
845 static void cmd_nicklist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
850 struct fnetpeer *peer, *npeer;
853 for(peer = fn->peers; peer != NULL; peer = peer->next)
854 peer->flags.b.delete = 1;
855 while((p = strstr(args, "$$")) != NULL)
858 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
860 if((peer = fnetfindpeer(fn, buf)) == NULL)
861 peer = fnetaddpeer(fn, buf, buf);
863 peer->flags.b.delete = 0;
865 qstrf(sk, "$GetINFO %s %s|", args, hub->nativenick);
869 for(peer = fn->peers; peer != NULL; peer = npeer)
872 if(peer->flags.b.delete)
875 hubhandleaction(sk, fn, cmd, args);
878 static void cmd_oplist(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
883 struct fnetpeer *peer;
886 for(peer = fn->peers; peer != NULL; peer = peer->next)
887 peer->flags.b.op = 0;
888 while((p = strstr(args, "$$")) != NULL)
891 if((buf = icmbstowcs(args, DCCHARSET)) != NULL)
893 if((peer = fnetfindpeer(fn, buf)) != NULL)
894 peer->flags.b.op = 1;
899 hubhandleaction(sk, fn, cmd, args);
902 static void cmd_myinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
905 wchar_t *buf, *wp, *wp2;
907 struct fnetpeer *peer;
912 if(strncmp(p, "$ALL ", 5))
915 if((p2 = strchr(p, ' ')) == NULL)
918 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
920 if((peer = fnetfindpeer(fn, buf)) == NULL)
921 peer = fnetaddpeer(fn, buf, buf);
924 if((p2 = strstr(p, "$ $")) == NULL)
927 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
929 if((wcslen(buf) > 0) && (buf[wcslen(buf) - 1] == L'>') && ((wp = wcschr(buf, L'<')) != NULL))
931 buf[wcslen(buf) - 1] = L'\0';
933 if((wp2 = wcschr(wp, L' ')) != NULL)
936 fnetpeersetstr(peer, L"dc-client", wp);
940 if((wp2 = wcschr(wp, L',')) != NULL)
944 swprintf(abuf, 10, L"dc-tag-%lc", wp[0]);
945 fnetpeersetstr(peer, abuf, wp + 2);
947 } while(wp2 != NULL);
950 fnetpeersetstr(peer, L"descr", buf);
953 if((p2 = strchr(p, '$')) == NULL)
956 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
958 fnetpeersetstr(peer, L"dc-speed", buf);
961 if((p2 = strchr(p, '$')) == NULL)
964 if((buf = icmbstowcs(p, DCCHARSET)) == NULL)
966 fnetpeersetstr(peer, L"email", buf);
971 fnetpeersetlnum(peer, L"share", strtoll(p, NULL, 10));
972 hubhandleaction(sk, fn, cmd, args);
975 /* I do not implement the fully in that I do not disconnect from the
976 * old hub. I do this since I believe that if the hub owner really
977 * wants to get rid of us, then it is his responsibility to disconnect
979 static void cmd_forcemove(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
982 struct fnetnode *newfn;
986 if(strchr(args, ':') == NULL)
988 args = strcpy(smalloc(strlen(args) + 5), args);
989 strcat(args, ":411");
994 if((newfn = fnetinitconnect(L"dc", args)) != NULL)
999 hubhandleaction(sk, fn, cmd, args);
1004 static char *getdcpath(struct sharecache *node, size_t *retlen)
1009 if(node->parent == NULL)
1011 if(node->parent == shareroot)
1013 if((buf = icwcstombs(node->name, DCCHARSET)) == NULL)
1016 *retlen = strlen(buf);
1019 if((buf2 = icwcstombs(node->name, DCCHARSET)) == NULL)
1021 if((buf = getdcpath(node->parent, &len)) == NULL)
1026 len2 = strlen(buf2);
1027 buf = srealloc(buf, len + 1 + len2 + 1);
1029 strcpy(buf + len, buf2);
1030 buf[len + len2] = 0;
1033 *retlen = len + len2;
1039 * This is the main share searching function for Direct Connect
1040 * peers. Feel free to optimize it if you feel the need for it. I
1041 * haven't ever seen it take any noticable CPU time anyway, so I
1042 * haven't felt that need.
1044 * It may feel dubious to just return the directory when all terms are
1045 * satisfied rather than all the files in it, but it really benefits
1046 * everyone: Less cycles used for us, less UDP squelching for active
1047 * searchers, and less bandwidth waste for hubs when serving passive
1050 static void cmd_search(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1055 char *prefix, *infix, *postfix, *buf, *buf2;
1057 struct sockaddr_in addr;
1058 struct sharecache *node;
1059 int minsize, maxsize;
1061 int termnum, satisfied, skipcheck;
1062 int level, tersat[32];
1067 if((p = strchr(args, ' ')) == NULL)
1071 memset(terms, 0, sizeof(terms));
1072 prefix = infix = postfix = NULL;
1076 if(!strncmp(args, "Hub:", 4))
1078 if(!strcmp(cmd, "$MultiSearch"))
1080 if(!strcmp(args + 4, hub->nativenick))
1082 prefix = sprintf2("$SR %s ", hub->nativenick);
1083 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1084 postfix = sprintf2(" (%s)\005%s|", formataddress(fn->sk->remote, fn->sk->remotelen), args + 4);
1088 if((p2 = strchr(args, ':')) == NULL)
1091 addr.sin_family = AF_INET;
1092 if(!inet_aton(args, &addr.sin_addr))
1094 addr.sin_port = htons(atoi(p2));
1095 prefix = sprintf2("$SR %s ", hub->nativenick);
1096 infix = sprintf2(" %i/%i\005", slotsleft(), confgetint("transfer", "slots"));
1097 postfix = sprintf2(" (%s)|", formataddress(fn->sk->remote, fn->sk->remotelen));
1098 netdgramconn(dsk = netdupsock(udpsock), (struct sockaddr *)&addr, sizeof(addr));
1101 minsize = maxsize = -1;
1110 if((*(p++) == 'T') && (minsize == 0))
1117 if((p2 = strchr(p, '?')) == NULL)
1132 if((*p2 == 0) || (*p2 == '$'))
1140 if(!dotth && !strncmp(p, "TTH:", 4))
1143 if((buf = base32decode(p + 4, &buflen)) == NULL)
1147 memcpy(hashtth, buf, 24);
1150 if((terms[termnum] = icmbstowcs(p, DCCHARSET)) != NULL)
1161 node = shareroot->child;
1163 for(i = 0; i < termnum; i++)
1169 if(node->f.b.type == FILE_REG)
1171 if((minsize >= 0) && (node->size < minsize))
1173 if((maxsize >= 0) && (node->size > maxsize))
1176 if(!skipcheck && dotth)
1178 if((node->f.b.type != FILE_REG) || (node->f.b.hastth && memcmp(hashtth, node->hashtth, 24)))
1183 for(i = 0; i < termnum; i++)
1187 if(wcsexists(node->name, terms[i]))
1191 } else if(node->child == NULL) {
1196 if(!skipcheck && (satisfied == termnum))
1198 if((buf = getdcpath(node, NULL)) != NULL)
1200 if(node->f.b.hastth)
1202 buf2 = base32encode(node->hashtth, 24);
1203 qstrf(dsk, "%s%s\005%i%sTTH:%.39s%s", prefix, buf, node->size, infix, buf2, postfix);
1206 qstrf(dsk, "%s%s\005%i%s%s%s", prefix, buf, node->size, infix, hub->nativename, postfix);
1211 if((!skipcheck && (satisfied == termnum)) || (node->child == NULL))
1213 while(node->next == NULL)
1215 if((node = node->parent) == shareroot)
1219 if(node == shareroot)
1221 for(i = 0; i < termnum; i++)
1223 if(tersat[i] >= level)
1236 hubhandleaction(sk, fn, cmd, args);
1247 for(i = 0; (i < 32) && (terms[i] != NULL); i++)
1251 static void cmd_connecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1255 struct socket *newsk;
1256 struct sockaddr_in addr;
1259 if((p = strchr(args, ' ')) == NULL)
1262 if(strcmp(args, hub->nativenick))
1264 addr.sin_family = AF_INET;
1266 if((p = strchr(args, ':')) == NULL)
1269 addr.sin_port = htons(atoi(p));
1270 if(!inet_aton(args, &addr.sin_addr))
1272 newsk = netcsconn((struct sockaddr *)&addr, sizeof(addr), (void (*)(struct socket *, int, void *))peerconnect, fn);
1274 hubhandleaction(sk, fn, cmd, args);
1277 static void sendctm(struct socket *sk, char *nick)
1279 struct sockaddr *addr;
1284 if(sockgetremotename(tcpsock, &addr, &addrlen) < 0)
1286 if(addr->sa_family == AF_INET)
1287 qstrf(sk, "$ConnectToMe %s %s|", nick, formataddress(addr, addrlen));
1289 flog(LOG_WARNING, "Direct Connect TCP socket is suddenly not AF_INET, but %i", addr->sa_family);
1293 static void cmd_revconnecttome(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1299 if((p = strchr(args, ' ')) == NULL)
1302 if(strcmp(p, hub->nativenick))
1305 expectpeer(args, fn);
1306 hubhandleaction(sk, fn, cmd, args);
1309 static void cmd_getnetinfo(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1312 struct fnetnode *node;
1317 for(node = fnetnodes; node != NULL; node = node->next)
1319 if(node->state == FNN_EST)
1322 qstrf(sk, "$NetInfo %i$%i$%c$0|", confgetint("transfer", "slots"), numhubs, (tcpsock == NULL)?'P':'A');
1323 hubhandleaction(sk, fn, cmd, args);
1326 static void cmd_to(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1333 if((p2 = strchr(p, ' ')) == NULL)
1337 if((p2 = strchr(p, ' ')) == NULL)
1340 if(strcmp(p, "From:"))
1343 if((p2 = strstr(p, " $")) == NULL)
1347 hubrecvchat(fn->sk, fn, p, p2);
1348 hubhandleaction(sk, fn, cmd, args);
1351 static void cmd_sr(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1355 char *nick, *filename, *hubname;
1359 wchar_t *wnick, *wfile;
1363 if((p2 = strchr(p, ' ')) == NULL)
1368 if((p2 = strchr(p, 5)) == NULL)
1372 if((p2 = strchr(p, ' ')) == NULL)
1377 if((p2 = strchr(p, '/')) == NULL)
1382 if((p2 = strchr(p, 5)) == NULL)
1386 if((p2 = strstr(p, " (")) == NULL)
1389 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
1391 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
1396 sr = newsrchres(&dcnet, wfile, wnick);
1397 if(sr->peernick != NULL)
1399 sr->peernick = swcsdup(wnick);
1404 if(!strncmp(hubname, "TTH:", 4))
1406 if((buf = base32decode(hubname + 4, &buflen)) != NULL)
1409 sr->hash = newhash(L"TTH", 24, buf);
1413 getfnetnode(sr->fn = fn);
1416 hubhandleaction(sk, fn, cmd, args);
1419 static void cmd_usercommand(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
1421 /* Do nothing for now. */
1424 static void cmd_mynick(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1426 struct dcexppeer *expect;
1428 if(peer->nativename != NULL)
1429 free(peer->nativename);
1430 peer->nativename = sstrdup(args);
1431 if(peer->wcsname != NULL)
1432 free(peer->wcsname);
1433 if((peer->wcsname = icmbstowcs(peer->nativename, DCCHARSET)) == NULL)
1440 for(expect = expected; expect != NULL; expect = expect->next)
1442 if(!strcmp(expect->nick, args))
1449 peer->fn = expect->fn;
1450 getfnetnode(peer->fn);
1451 freeexppeer(expect);
1456 static void cmd_direction(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1460 struct transfer *transfer;
1462 if((p = strchr(args, ' ')) == NULL)
1465 if(!strcmp(args, "Upload"))
1467 if(!strcmp(args, "Download"))
1471 if((peer->transfer == NULL) || (mydir != peer->direction))
1478 if(peer->wcsname == NULL)
1483 peer->direction = mydir;
1484 if(peer->direction == TRNSD_UP)
1486 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1488 if((transfer = finddownload(peer->wcsname)) == NULL)
1493 transferattach(transfer, &dctransfer, peer);
1494 transfersetstate(transfer, TRNS_HS);
1496 transfersetnick(transfer, peer->wcsname);
1497 peer->transfer = transfer;
1500 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1501 if(peer->key != NULL)
1502 qstrf(sk, "$Key %s|", peer->key);
1503 if(peer->direction == TRNSD_DOWN)
1508 static void cmd_peerlock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1511 struct transfer *transfer;
1513 if((p = strchr(args, ' ')) == NULL)
1516 if(!strncmp(args, "EXTENDEDPROTOCOL", 16))
1518 key = dcmakekey(args);
1521 if(peer->wcsname == NULL)
1530 if((transfer = finddownload(peer->wcsname)) == NULL)
1532 peer->direction = TRNSD_UP;
1533 transfer = newupload(peer->fn, &dcnet, peer->wcsname, &dctransfer, peer);
1535 peer->direction = TRNSD_DOWN;
1536 transferattach(transfer, &dctransfer, peer);
1537 transfersetstate(transfer, TRNS_HS);
1539 transfersetnick(transfer, peer->wcsname);
1540 peer->transfer = transfer;
1541 qstrf(sk, "$Direction %s %i|", (peer->direction == TRNSD_UP)?"Upload":"Download", rand() % 10000);
1542 qstrf(sk, "$Key %s|", key);
1544 if(peer->key != NULL)
1550 static void cmd_key(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1555 static void startdl(struct dcpeer *peer)
1557 peer->state = PEER_TRNS;
1558 transferstartdl(peer->transfer, peer->sk);
1559 peer->sk->readcb = (void (*)(struct socket *, void *))transread;
1560 peer->sk->errcb = (void (*)(struct socket *, int, void *))transerr;
1563 static void startul(struct dcpeer *peer)
1565 peer->state = PEER_TRNS;
1566 transferstartul(peer->transfer, peer->sk);
1567 peer->sk->writecb = (void (*)(struct socket *, void *))transwrite;
1570 static void cmd_filelength(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1574 if(peer->transfer == NULL)
1580 if(peer->transfer->size != size)
1582 transfersetsize(peer->transfer, size);
1587 qstr(peer->sk, "$Send|");
1590 static void cmd_error(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1592 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1594 transferseterror(peer->transfer, TRNSE_NOTFOUND);
1595 resettransfer(peer->transfer);
1601 static void cmd_maxedout(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1603 if((peer->transfer != NULL) && (peer->transfer->dir == TRNSD_DOWN))
1605 transferseterror(peer->transfer, TRNSE_NOSLOTS);
1606 resettransfer(peer->transfer);
1619 {"MyList.DcLst", &hmlistname, updatehmlist},
1620 {"files.xml", &xmllistname, updatexmllist},
1621 {"files.xml.bz2", &xmlbz2listname, updatexmlbz2list},
1625 static int openfilelist(char *name)
1630 for(i = 0; lists[i].name != NULL; i++)
1632 if(!strcmp(name, lists[i].name))
1636 if(lists[i].name == NULL)
1639 if((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0))
1641 if((fd < 0) && ((*lists[i].file == NULL) || ((fd = open(*lists[i].file, O_RDONLY)) < 0)))
1644 flog(LOG_ERR, "could not open filelist tempfile: %s", strerror(errno));
1651 static struct sharecache *findbytth(char *tth32)
1655 struct sharecache *node;
1657 if((buf = base32decode(tth32, &buflen)) == NULL)
1664 for(node = shareroot->child; node != NULL; node = nextscnode(node))
1666 if(node->f.b.hastth && !memcmp(node->hashtth, buf, 24))
1673 static struct sharecache *resdcpath(char *path, char *charset, char sep)
1675 struct sharecache *node;
1682 if((p2 = strchr(p, sep)) != NULL)
1684 if((node = findcache(node, icsmbstowcs(p, charset, L""))) == NULL)
1691 static void cmd_get(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1696 struct sharecache *node;
1697 struct socket *lesk;
1701 if(peer->transfer == NULL)
1706 if((p = strchr(args, '$')) == NULL)
1712 if((offset = (atoi(p) - 1)) < 0)
1717 if(((fd = openfilelist(args)) < 0) && (errno != 0))
1719 qstr(sk, "$Error Could not send file list|");
1722 } else if(fd >= 0) {
1723 if((buf2 = icsmbstowcs(args, DCCHARSET, NULL)) != NULL)
1724 transfersetpath(peer->transfer, buf2);
1730 qstr(sk, "$MaxedOut|");
1734 if((node = resdcpath(args, DCCHARSET, '\\')) == NULL)
1736 qstrf(sk, "$Error File not in share|");
1740 if((fd = opensharecache(node)) < 0)
1742 qstrf(sk, "$Error %s|", strerror(errno));
1746 buf = getfspath(node);
1747 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1748 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1750 transfersetpath(peer->transfer, buf2);
1753 if(fstat(fd, &sb) < 0)
1756 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1757 qstrf(sk, "$Error|");
1761 if((offset != 0) && (lseek(fd, offset, SEEK_SET) < 0))
1764 qstrf(sk, "$Error Offset out of range|");
1768 lesk = wrapsock(fd);
1769 transferprepul(peer->transfer, sb.st_size, offset, -1, lesk);
1771 qstrf(sk, "$FileLength %i|", peer->transfer->size);
1774 static void cmd_send(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1776 if(peer->transfer == NULL)
1781 if(peer->transfer->localend == NULL)
1790 static void cmd_supports(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1795 size_t arrsize, arrdata;
1797 if(peer->supports != NULL)
1799 for(i = 0; peer->supports[i] != NULL; i++)
1800 free(peer->supports[i]);
1801 free(peer->supports);
1804 arrsize = arrdata = 0;
1808 if((p2 = strchr(p, ' ')) != NULL)
1812 addtobuf(arr, sstrdup(p));
1813 } while((p = p2) != NULL);
1814 addtobuf(arr, NULL);
1815 peer->supports = arr;
1818 static void cmd_getblock(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1822 int start, numbytes;
1823 char *charset, *buf;
1825 struct sharecache *node;
1827 struct socket *lesk;
1829 if(peer->transfer == NULL)
1835 if((p2 = strchr(p, ' ')) == NULL)
1843 if((p2 = strchr(p, ' ')) == NULL)
1851 if(!strcmp(cmd, "$UGetBlock") || !strcmp(cmd, "$UGetZBlock"))
1854 charset = DCCHARSET;
1855 if(!strcmp(cmd, "$GetZBlock") || !strcmp(cmd, "$UGetZBlock"))
1856 initcompress(peer, CPRS_ZLIB);
1857 if(((fd = openfilelist(p)) < 0) && (errno != 0))
1859 qstr(sk, "$Error Could not send file list|");
1861 } else if(fd >= 0) {
1862 if((buf2 = icsmbstowcs(args, charset, NULL)) != NULL)
1863 transfersetpath(peer->transfer, buf2);
1869 qstr(sk, "$MaxedOut|");
1872 if((node = resdcpath(p, charset, '\\')) == NULL)
1874 qstr(sk, "$Error File not in cache|");
1877 if((fd = opensharecache(node)) < 0)
1879 qstrf(sk, "$Error %s|", strerror(errno));
1882 buf = getfspath(node);
1883 if((buf2 = icsmbstowcs(buf, NULL, NULL)) == NULL)
1884 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1886 transfersetpath(peer->transfer, buf2);
1889 if(fstat(fd, &sb) < 0)
1892 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1893 qstr(sk, "$Error|");
1896 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
1899 qstr(sk, "$Error Offset out of range|");
1902 if((numbytes < 0) || (start + numbytes > sb.st_size))
1903 numbytes = sb.st_size - start;
1904 lesk = wrapsock(fd);
1905 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
1907 qstrf(sk, "$Sending %i|", numbytes);
1911 static void cmd_adcget(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
1915 int start, numbytes;
1916 struct sharecache *node;
1918 struct socket *lesk;
1922 if(peer->transfer == NULL)
1927 if((argv = parseadc(args)) == NULL)
1932 if(parrlen(argv) < 4)
1937 start = atoi(argv[2]);
1938 numbytes = atoi(argv[3]);
1941 if(((fd = openfilelist(argv[1])) < 0) && (errno != 0))
1943 qstr(sk, "$Error Could not send file list|");
1945 } else if(fd >= 0) {
1946 if((wbuf = icsmbstowcs(argv[1], "UTF-8", NULL)) != NULL)
1947 transfersetpath(peer->transfer, wbuf);
1953 qstr(sk, "$MaxedOut|");
1956 if(!strncmp(argv[1], "TTH/", 4))
1958 if((node = findbytth(argv[1] + 4)) == NULL)
1960 qstr(sk, "$Error File not in cache|");
1964 if((node = resdcpath((argv[1][0] == '/')?(argv[1] + 1):(argv[1]), "UTF-8", '/')) == NULL)
1966 qstr(sk, "$Error File not in cache|");
1970 if((fd = opensharecache(node)) < 0)
1972 qstrf(sk, "$Error %s|", strerror(errno));
1975 buf = getfspath(node);
1976 if((wbuf = icsmbstowcs(buf, NULL, NULL)) == NULL)
1977 flog(LOG_WARNING, "could not convert native path into a wcs (%s): %s", buf, strerror(errno));
1979 transfersetpath(peer->transfer, wbuf);
1982 if(!strcmp(argv[0], "file"))
1984 for(i = 4; argv[i] != NULL; i++)
1986 if(!strcmp(argv[i], "ZL1"))
1987 initcompress(peer, CPRS_ZLIB);
1989 if(fstat(fd, &sb) < 0)
1991 flog(LOG_WARNING, "could not stat file %ls: %s", node->name, strerror(errno));
1992 qstr(sk, "$Error|");
1995 if((start != 0) && ((start >= sb.st_size) || (lseek(fd, start, SEEK_SET) < 0)))
1997 qstr(sk, "$Error Offset out of range|");
2000 if((numbytes < 0) || (start + numbytes > sb.st_size))
2001 numbytes = sb.st_size - start;
2002 lesk = wrapsock(fd);
2003 transferprepul(peer->transfer, sb.st_size, start, start + numbytes, lesk);
2006 qstr(sk, "$ADCSND");
2007 sendadc(sk, "file");
2008 sendadc(sk, argv[1]);
2009 sendadcf(sk, "%i", start);
2010 sendadcf(sk, "%i", numbytes);
2011 if(peer->compress == CPRS_ZLIB)
2015 } else if(!strcmp(argv[0], "tthl")) {
2017 * XXX: Implement full TTHL support.
2019 * In the meantime, this is better than nothing, since it at
2020 * least allows fetching of the TTH root if it isn't already
2025 qstr(sk, "$Error no TTHL data for virtual files|");
2028 qstr(sk, "$ADCSND");
2029 sendadc(sk, "tthl");
2030 sendadc(sk, argv[1]);
2034 sockqueue(sk, node->hashtth, 24);
2036 qstr(sk, "$Error Namespace not implemented|");
2046 static void handletthl(struct dcpeer *peer)
2050 while(peer->inbufdata >= 24)
2052 pushtigertree(&peer->tth, peer->inbuf);
2053 memmove(peer->inbuf, peer->inbuf + 24, peer->inbufdata -= 24);
2055 if((peer->curread += 24) >= peer->totalsize)
2057 peer->state = PEER_CMD;
2058 synctigertree(&peer->tth);
2059 restigertree(&peer->tth, buf);
2060 transfersethash(peer->transfer, newhash(L"TTH", 24, buf));
2065 static void cmd_adcsnd(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2068 int start, numbytes;
2070 if(peer->transfer == NULL)
2075 if((argv = parseadc(args)) == NULL)
2080 if(parrlen(argv) < 4)
2085 start = atoi(argv[2]);
2086 numbytes = atoi(argv[3]);
2087 if(!strcmp(argv[0], "tthl"))
2089 if((start != 0) || (numbytes % 24 != 0))
2091 /* Weird. Bail out. */
2095 peer->state = PEER_TTHL;
2096 peer->totalsize = numbytes;
2098 inittigertree(&peer->tth);
2100 } else if(!strcmp(argv[0], "file")) {
2101 if(start != peer->transfer->curpos)
2106 if(start + numbytes != peer->transfer->size)
2108 transfersetsize(peer->transfer, start + numbytes);
2114 /* We certainly didn't request this...*/
2123 static void cmd_sending(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2127 if(peer->transfer == NULL)
2132 numbytes = atoi(args);
2133 if(peer->transfer->size - peer->transfer->curpos != numbytes)
2135 transfersetsize(peer->transfer, peer->transfer->curpos + numbytes);
2144 static void cmd_(struct socket *sk, struct fnetnode *fn, char *cmd, char *args)
2149 hubhandleaction(sk, fn, cmd, args);
2153 static void cmd_(struct socket *sk, struct dcpeer *peer, char *cmd, char *args)
2159 static int hubreqconn(struct fnetpeer *peer)
2164 if((peer->fn->state != FNN_EST) || (peer->fn->fnet != &dcnet))
2169 if((hub = peer->fn->data) == NULL)
2174 if((mbsnick = icwcstombs(peer->id, DCCHARSET)) == NULL)
2175 return(1); /* Shouldn't happen, of course, but who knows... */
2178 sendctm(peer->fn->sk, mbsnick);
2179 expectpeer(mbsnick, peer->fn);
2181 qstrf(peer->fn->sk, "$RevConnectToMe %s %s|", hub->nativenick, mbsnick);
2187 static int hubsendchat(struct fnetnode *fn, int public, wchar_t *to, wchar_t *string)
2190 char *mbsstring, *mbsto;
2193 if((mbsto = icwcstombs(to, DCCHARSET)) == NULL)
2198 if((mbsstring = icwcstombs(string, DCCHARSET)) == NULL)
2203 if((strchr(mbsto, '|') != NULL) || (strchr(mbsto, ' ') != NULL))
2210 if(strchr(mbsstring, '|') != NULL)
2221 qstrf(fn->sk, "<%s> %s|", hub->nativenick, mbsstring);
2223 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2226 qstrf(fn->sk, "$To: %s From: %s $<%s> %s|", mbsto, hub->nativenick, hub->nativenick, mbsstring);
2233 static void findsizelimit(struct sexpr *sexpr, int *min, int *max)
2235 int minl, maxl, minr, maxr, retmin, retmax;
2240 findsizelimit(sexpr->l, &minl, &maxl);
2241 findsizelimit(sexpr->r, &minr, &maxr);
2242 retmin = (minl > minr)?minl:minr;
2243 if((maxl != -1) && (maxr != -1))
2244 retmax = (maxl < maxr)?maxl:maxr;
2253 findsizelimit(sexpr->l, &minl, &maxl);
2254 findsizelimit(sexpr->r, &minr, &maxr);
2255 retmin = (minl < minr)?minl:minr;
2256 if((maxl == -1) || (maxr == -1))
2259 retmax = (maxl > maxr)?maxl:maxr;
2262 findsizelimit(sexpr->l, &minl, &maxl);
2263 if((minl == 0) && (maxl == -1)) /* Interval is unspecified */
2267 } else if((minl == 0) && (maxl != -1)) {
2270 } else if((minl != 0) && (maxl == -1)) {
2273 } else { /* This would yield two seperate intervals, which DC cannot handle */
2279 retmax = sexpr->d.n - 1;
2282 retmin = sexpr->d.n;
2283 retmax = sexpr->d.n;
2286 retmin = sexpr->d.n + 1;
2300 static struct hash *findsehash(struct sexpr *sexpr)
2302 struct hash *h1, *h2;
2307 if((h1 = findsehash(sexpr->l)) != NULL)
2309 if((h1 = findsehash(sexpr->r)) != NULL)
2313 h1 = findsehash(sexpr->l);
2314 h2 = findsehash(sexpr->r);
2319 if(!wcscmp(sexpr->d.hash->algo, L"TTH"))
2320 return(sexpr->d.hash);
2327 static int hubsearch(struct fnetnode *fn, struct search *srch, struct srchfnnlist *ln)
2330 struct wcslist *list, *cur;
2331 char *sstr, *buf, *p;
2332 size_t sstrsize, sstrdata;
2333 struct sockaddr *name;
2335 int minsize, maxsize;
2339 if((fn->state != FNN_EST) || (fn->sk == NULL) || (fn->sk->state != SOCK_EST))
2341 list = findsexprstrs(srch->sexpr);
2342 findsizelimit(srch->sexpr, &minsize, &maxsize);
2343 hash = findsehash(srch->sexpr);
2344 if((minsize != 0) && (maxsize != -1))
2346 /* Choose either minsize or maxsize by trying to determine
2347 * which choice will be most restrictive. The result can be
2348 * approximative at best anyway, so don't try too hard... */
2349 if((50000000 - maxsize) > (minsize - 50000000))
2355 sstrsize = sstrdata = 0;
2356 if((hash != NULL) && (hash->len == 24))
2358 /* Prioritize hash searches above all else */
2359 bufcat(sstr, "F?T?0?9?TTH:", 12);
2360 buf = base32encode(hash->buf, hash->len);
2362 bufcat(sstr, buf, 39);
2367 sizebuf2(sstr, sstrdata + 32, 1);
2368 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?F?%i?1?", minsize);
2369 } else if(maxsize != -1) {
2370 sizebuf2(sstr, sstrdata + 32, 1);
2371 snprintf(sstr + sstrdata, sstrsize - sstrdata, "T?T?%i?1?", maxsize);
2373 bufcat(sstr, "F?F?0?1?", 8);
2377 for(cur = list; cur != NULL; cur = cur->next)
2379 if((buf = icwcstombs(cur->str, DCCHARSET)) == NULL)
2381 /* Can't find anything anyway if the search expression
2382 * requires characters outside DC's charset. There's
2383 * nothing technically wrong with the search itself,
2384 * however, so return success. This should be
2385 * considered as an optimization. */
2392 addtobuf(sstr, '$');
2394 * It probably doesn't hurt if buf contains any extra
2395 * dollar signs - it will just result in extra search
2396 * terms, and the extraneous results will be filtered by
2397 * the search layer anyway. It hurts if it contains any
2398 * pipes, though, so let's sell them for money.
2400 for(p = buf; *p; p++)
2405 bufcat(sstr, buf, strlen(buf));
2409 /* Will match all files... :-/ */
2410 addtobuf(sstr, '.');
2416 if(sockgetremotename(udpsock, &name, &namelen) < 0)
2418 flog(LOG_WARNING, "cannot get address of UDP socket");
2420 qstrf(fn->sk, "$Search %s %s|", formataddress(name, namelen), sstr);
2424 qstrf(fn->sk, "$Search Hub:%s %s|", hub->nativenick, sstr);
2428 fn->lastsrch = time(NULL);
2436 #define cc(c) ((void (*)(struct socket *, void *, char *, char *))(c))
2437 struct command hubcmds[] =
2439 {"$Lock", cc(cmd_lock)},
2440 {"$HubName", cc(cmd_hubname)},
2441 {"$Hello", cc(cmd_hello)},
2442 {"$Quit", cc(cmd_quit)},
2443 {"$NickList", cc(cmd_nicklist)},
2444 {"$OpList", cc(cmd_oplist)},
2445 {"$MyINFO", cc(cmd_myinfo)},
2446 {"$ForceMove", cc(cmd_forcemove)},
2447 {"$Search", cc(cmd_search)},
2448 {"$MultiSearch", cc(cmd_search)},
2449 {"$ConnectToMe", cc(cmd_connecttome)},
2450 {"$RevConnectToMe", cc(cmd_revconnecttome)},
2451 {"$GetNetInfo", cc(cmd_getnetinfo)},
2452 {"$To:", cc(cmd_to)},
2453 {"$SR", cc(cmd_sr)},
2454 {"$UserCommand", cc(cmd_usercommand)},
2458 struct command peercmds[] =
2460 {"$MyNick", cc(cmd_mynick)},
2461 {"$Lock", cc(cmd_peerlock)},
2462 {"$Direction", cc(cmd_direction)},
2463 {"$Key", cc(cmd_key)},
2464 {"$FileLength", cc(cmd_filelength)},
2465 {"$Error", cc(cmd_error)},
2466 {"$MaxedOut", cc(cmd_maxedout)},
2467 {"$Get", cc(cmd_get)},
2468 {"$Send", cc(cmd_send)},
2469 {"$Supports", cc(cmd_supports)},
2470 {"$GetBlock", cc(cmd_getblock)},
2471 {"$UGetBlock", cc(cmd_getblock)},
2472 {"$GetZBlock", cc(cmd_getblock)},
2473 {"$UGetZBlock", cc(cmd_getblock)},
2474 {"$ADCGET", cc(cmd_adcget)},
2475 {"$ADCSND", cc(cmd_adcsnd), 1},
2476 {"$Sending", cc(cmd_sending), 1},
2481 static void dctransdetach(struct transfer *transfer, struct dcpeer *peer)
2483 CBUNREG(transfer, trans_filterout, peer);
2486 peer->transfer = NULL;
2490 static void dctransgotdata(struct transfer *transfer, struct dcpeer *peer)
2498 if((peer->state == PEER_TRNS) || (peer->state == PEER_SYNC))
2500 if(sockqueuesize(peer->sk) < 65536)
2502 if((buf = transfergetdata(transfer, &bufsize)) != NULL)
2504 if(peer->compress == CPRS_NONE)
2506 sockqueue(peer->sk, buf, bufsize);
2507 } else if(peer->compress == CPRS_ZLIB) {
2508 cstr = peer->cprsdata;
2509 cstr->next_in = buf;
2510 cstr->avail_in = bufsize;
2511 while(cstr->avail_in > 0)
2513 cstr->next_out = outbuf;
2514 cstr->avail_out = sizeof(outbuf);
2515 if((ret = deflate(cstr, 0)) != Z_OK)
2517 flog(LOG_WARNING, "bug? deflate() did not return Z_OK (but rather %i)", ret);
2521 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2526 if(peer->state == PEER_SYNC)
2528 if(peer->compress == CPRS_ZLIB)
2530 cstr = peer->cprsdata;
2531 cstr->next_in = NULL;
2535 cstr->next_out = outbuf;
2536 cstr->avail_out = sizeof(outbuf);
2537 ret = deflate(cstr, Z_FINISH);
2538 if((ret != Z_OK) && (ret != Z_STREAM_END))
2540 flog(LOG_WARNING, "bug? deflate(Z_FINISH) did not return Z_OK (but rather %i)", ret);
2544 sockqueue(peer->sk, outbuf, sizeof(outbuf) - cstr->avail_out);
2545 } while(ret != Z_STREAM_END);
2551 peer->state = PEER_CMD;
2553 transfersetstate(transfer, TRNS_HS);
2554 socksettos(peer->sk, confgetint("fnet", "fnptos"));
2555 peer->sk->writecb = NULL;
2562 static void dctransendofdata(struct transfer *transfer, struct dcpeer *peer)
2564 peer->state = PEER_SYNC;
2565 dctransgotdata(transfer, peer);
2568 static void dcwantdata(struct transfer *transfer, struct dcpeer *peer)
2570 if(transferdatasize(transfer) < 65536)
2571 peer->sk->ignread = 0;
2574 static void transread(struct socket *sk, struct dcpeer *peer)
2578 struct transfer *transfer;
2580 if((buf = sockgetinbuf(sk, &bufsize)) == NULL)
2582 if(peer->transfer == NULL)
2588 transferputdata(peer->transfer, buf, bufsize);
2590 if(peer->transfer->curpos >= peer->transfer->size)
2592 transfer = peer->transfer;
2593 transferdetach(transfer);
2594 transferendofdata(transfer);
2597 if(transferdatasize(peer->transfer) > 65535)
2601 static void transerr(struct socket *sk, int err, struct dcpeer *peer)
2603 struct transfer *transfer;
2605 if((transfer = peer->transfer) == NULL)
2610 transferdetach(transfer);
2611 transferendofdata(transfer);
2614 static void transwrite(struct socket *sk, struct dcpeer *peer)
2616 if((peer->state != PEER_TRNS) && (peer->state != PEER_SYNC))
2618 if(peer->transfer == NULL)
2623 dctransgotdata(peer->transfer, peer);
2626 static void udpread(struct socket *sk, void *data)
2628 char *buf, *p, *p2, *hashbuf;
2629 size_t buflen, hashlen;
2630 char *nick, *filename, *hubname;
2632 struct fnetnode *fn, *myfn;
2635 wchar_t *wnick, *wfile;
2638 if((buf = sockgetinbuf(sk, &buflen)) == NULL)
2640 buf = srealloc(buf, buflen + 1);
2642 if(!strncmp(buf, "$SR ", 4))
2646 if((p2 = strchr(p, ' ')) == NULL)
2654 if((p2 = strchr(p, 5)) == NULL)
2661 if((p2 = strchr(p, ' ')) == NULL)
2669 if((p2 = strchr(p, '/')) == NULL)
2677 if((p2 = strchr(p, 5)) == NULL)
2684 if((p2 = strstr(p, " (")) == NULL)
2690 if((wnick = icmbstowcs(nick, DCCHARSET)) == NULL)
2695 if((wfile = icmbstowcs(filename, DCCHARSET)) == NULL)
2703 if(!strncmp(hubname, "TTH:", 4))
2705 if((hashbuf = base32decode(hubname + 4, &hashlen)) != NULL)
2708 hash = newhash(L"TTH", 24, hashbuf);
2712 for(fn = fnetnodes; fn != NULL; fn = fn->next)
2714 if((fn->fnet == &dcnet) && ((hub = fn->data) != NULL))
2716 if((hub->nativename != NULL) && !strcmp(hub->nativename, hubname))
2729 sr = newsrchres(&dcnet, wfile, wnick);
2730 if(sr->peernick != NULL)
2732 sr->peernick = swcsdup(wnick);
2738 getfnetnode(sr->fn = myfn);
2747 static void hubread(struct socket *sk, struct fnetnode *fn)
2754 hub = (struct dchub *)fn->data;
2755 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
2757 if(hub->inbufdata > 500000) /* Discard possible malicious data */
2759 sizebuf2(hub->inbuf, hub->inbufdata + datalen, 1);
2760 memcpy(hub->inbuf + hub->inbufdata, newbuf, datalen);
2762 p = hub->inbuf + hub->inbufdata;
2763 hub->inbufdata += datalen;
2764 while((datalen > 0) && ((p = memchr(p, '|', datalen)) != NULL))
2767 newqcmd(&hub->queue, hub->inbuf);
2768 memmove(hub->inbuf, p, hub->inbufdata -= p - hub->inbuf);
2769 datalen = hub->inbufdata;
2774 static void huberr(struct socket *sk, int err, struct fnetnode *fn)
2779 static int hubsetnick(struct fnetnode *fn, wchar_t *newnick)
2785 if((buf = icwcstombs(newnick, DCCHARSET)) == NULL)
2787 if((strchr(buf, ' ') != NULL) || (strchr(buf, '|') != NULL) || (strchr(buf, '$') != NULL))
2792 if(hub == NULL) /* Not yet connected */
2797 if(hub->nativenick != NULL)
2798 free(hub->nativenick);
2799 hub->nativenick = buf;
2803 static struct dchub *newdchub(struct fnetnode *fn)
2807 new = smalloc(sizeof(*new));
2808 memset(new, 0, sizeof(*new));
2810 if(hubsetnick(fn, fn->mynick))
2811 fnetsetnick(fn, L"DoldaConnectUser-IN");
2812 /* IN as in Invalid Nick */
2816 static struct dcpeer *newdcpeer(struct socket *sk)
2820 new = smalloc(sizeof(*new));
2821 memset(new, 0, sizeof(*new));
2822 new->transfer = NULL;
2834 static void freedcpeer(struct dcpeer *peer)
2837 struct qcommand *qcmd;
2842 if(peer->next != NULL)
2843 peer->next->prev = peer->prev;
2844 if(peer->prev != NULL)
2845 peer->prev->next = peer->next;
2846 if(peer->transfer != NULL)
2848 if(peer->transfer->dir == TRNSD_UP)
2849 peer->transfer->close = 1;
2850 if(peer->transfer->dir == TRNSD_DOWN)
2851 resettransfer(peer->transfer);
2852 transferdetach(peer->transfer);
2854 if(peer->sk->data == peer)
2855 peer->sk->data = NULL;
2856 peer->sk->readcb = NULL;
2857 peer->sk->writecb = NULL;
2858 peer->sk->errcb = NULL;
2861 if(peer->supports != NULL)
2863 for(i = 0; peer->supports[i] != NULL; i++)
2864 free(peer->supports[i]);
2865 free(peer->supports);
2867 if(peer->inbuf != NULL)
2869 if(peer->key != NULL)
2871 if(peer->wcsname != NULL)
2872 free(peer->wcsname);
2873 if(peer->nativename != NULL)
2874 free(peer->nativename);
2875 if(peer->fn != NULL)
2876 putfnetnode(peer->fn);
2877 while((qcmd = ulqcmd(&peer->queue)) != NULL)
2883 static void hubconnect(struct fnetnode *fn)
2885 fn->sk->readcb = (void (*)(struct socket *, void *))hubread;
2886 fn->sk->errcb = (void (*)(struct socket *, int, void *))huberr;
2888 fn->data = newdchub(fn);
2893 static void hubdestroy(struct fnetnode *fn)
2896 struct qcommand *qcmd;
2898 hub = (struct dchub *)fn->data;
2901 if(fn->sk->data == fn)
2903 fn->sk->data = NULL;
2909 while((qcmd = ulqcmd(&hub->queue)) != NULL)
2911 if(hub->nativename != NULL)
2912 free(hub->nativename);
2913 if(hub->nativenick != NULL)
2914 free(hub->nativenick);
2915 if(hub->inbuf != NULL)
2920 static wchar_t *dcbasename(wchar_t *filename)
2924 if((ret = wcsrchr(filename, L'\\')) != NULL)
2929 static struct transferiface dctransfer =
2931 .detach = (void (*)(struct transfer *, void *))dctransdetach,
2932 .gotdata = (void (*)(struct transfer *, void *))dctransgotdata,
2933 .endofdata = (void (*)(struct transfer *, void *))dctransendofdata,
2934 .wantdata = (void (*)(struct transfer *, void *))dcwantdata
2937 static struct fnet dcnet =
2940 .connect = hubconnect,
2941 .destroy = hubdestroy,
2942 .setnick = hubsetnick,
2943 .reqconn = hubreqconn,
2944 .sendchat = hubsendchat,
2945 .search = hubsearch,
2946 .filebasename = dcbasename
2949 static void peerread(struct socket *sk, struct dcpeer *peer)
2953 struct command *cmd;
2955 if((newbuf = sockgetinbuf(sk, &datalen)) == NULL)
2957 sizebuf2(peer->inbuf, peer->inbufdata + datalen, 1);
2958 memcpy(peer->inbuf + peer->inbufdata, newbuf, datalen);
2960 peer->inbufdata += datalen;
2961 if(peer->state == PEER_CMD)
2964 while((peer->inbufdata > 0) && (p = memchr(peer->inbuf, '|', peer->inbufdata)) != NULL)
2967 newqcmd(&peer->queue, peer->inbuf);
2968 for(cmd = peercmds; cmd->handler != NULL; cmd++)
2970 if(!memcmp(peer->inbuf, cmd->name, strlen(cmd->name)) && (peer->inbuf[strlen(cmd->name)] == 0))
2975 peer->state = PEER_STOP;
2978 memmove(peer->inbuf, p, peer->inbufdata -= p - peer->inbuf);
2980 } else if(peer->state == PEER_TTHL) {
2985 static void peererror(struct socket *sk, int err, struct dcpeer *peer)
2990 static void peerconnect(struct socket *sk, int err, struct fnetnode *fn)
2992 struct dcpeer *peer;
2999 peer = newdcpeer(sk);
3002 sk->readcb = (void (*)(struct socket *, void *))peerread;
3003 sk->errcb = (void (*)(struct socket *, int, void *))peererror;
3005 socksettos(sk, confgetint("fnet", "fnptos"));
3011 static void peeraccept(struct socket *sk, struct socket *newsk, void *data)
3013 struct dcpeer *peer;
3015 peer = newdcpeer(newsk);
3017 newsk->readcb = (void (*)(struct socket *, void *))peerread;
3018 newsk->errcb = (void (*)(struct socket *, int, void *))peererror;
3020 socksettos(newsk, confgetint("fnet", "fnptos"));
3023 static void updatehmlist(void)
3025 int i, lev, ic, ret;
3026 struct sharecache *node;
3027 char *buf, *buf2, numbuf[32];
3028 size_t bufsize, bufdata;
3032 buf = smalloc(bufsize = 65536);
3033 node = shareroot->child;
3038 if((buf2 = icwcstombs(node->name, DCCHARSET)) != NULL)
3040 for(i = 0; i < lev; i++)
3042 bufcat(buf, buf2, strlen(buf2));
3044 if(node->f.b.type == FILE_REG)
3047 sprintf(numbuf, "%i", node->size);
3048 bufcat(buf, numbuf, strlen(numbuf));
3055 if((node->child != NULL) && !ic)
3059 } else if(node->next != NULL) {
3062 while(node->next == NULL)
3065 node = node->parent;
3066 if(node == shareroot)
3069 if(node == shareroot)
3074 if(hmlistname != NULL)
3079 hmlistname = sstrdup("/tmp/dc-filelist-hm-XXXXXX");
3080 if((fd = mkstemp(hmlistname)) < 0)
3082 flog(LOG_WARNING, "could not create HM file list tempfile: %s", strerror(errno));
3087 * I do not want to implement a good Huffman encoder, and it's not
3088 * like Huffman encoding actually yields any impressive results
3089 * for DC file lists anyway, so I'll just output a bogus
3090 * tree. Implement a good encoder if you want to.
3092 write(fd, "HE3\r\0", 5);
3093 write(fd, &bufdata, 4);
3095 write(fd, &ibuf, 2);
3097 for(i = 0; i < 256; i++)
3100 write(fd, &ibuf, 1);
3102 for(i = 0; i < 256; i++)
3104 for(buf2 = buf; bufdata > 0;)
3106 if((ret = write(fd, buf2, bufdata)) < 0)
3108 flog(LOG_WARNING, "could not write file list: %s", strerror(errno));
3119 static struct xmlent
3126 /* {L'\'', L"""}, Emulate DC++ escaping by omitting this. */
3130 static wchar_t *escapexml(wchar_t *src)
3132 static wchar_t *buf = NULL;;
3135 size_t bufsize, bufdata;
3141 bufsize = bufdata = 0;
3142 for(; *src != L'\0'; src++)
3145 if((c > 0) && (c < 32))
3147 bufcat(buf, L"&#", 2);
3148 ret = swprintf(nbuf, (sizeof(nbuf) / sizeof(*nbuf)), L"%i", c);
3149 bufcat(buf, nbuf, ret);
3150 addtobuf(buf, L';');
3152 for(ent = entities; ent->ent != NULL; ent++)
3156 bufcat(buf, ent->ent, wcslen(ent->ent));
3160 if(ent->ent == NULL)
3161 addtobuf(buf, *src);
3164 addtobuf(buf, L'\0');
3168 static void updatexmllist(void)
3172 char cidbuf[14], *namebuf;
3174 struct sharecache *node;
3176 if(xmllistname != NULL)
3178 unlink(xmllistname);
3181 xmllistname = sstrdup("/tmp/dc-filelist-dcxml-XXXXXX");
3182 if((fd = mkstemp(xmllistname)) < 0)
3184 flog(LOG_WARNING, "could not create XML file list tempfile: %s", strerror(errno));
3189 if((fs = fdopen(fd, "w")) == NULL)
3191 flog(LOG_WARNING, "could not fdopen XML list fd %i: %s", fd, strerror(errno));
3192 unlink(xmllistname);
3198 fprintf(fs, "<?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"yes\"?>\r\n");
3199 for(i = 0; i < sizeof(cidbuf) - 1; i++)
3200 cidbuf[i] = (rand() % ('Z' - 'A' + 1)) + 'A';
3202 fprintf(fs, "<FileListing Version=\"1\" CID=\"%s\" Base=\"/\" Generator=\"%s\">\r\n", cidbuf, DCIDFULL);
3204 node = shareroot->child;
3208 if((namebuf = icswcstombs(escapexml(node->name), "UTF-8", NULL)) != NULL)
3210 for(i = 0; i < lev; i++)
3212 if(node->child != NULL)
3214 fprintf(fs, "<Directory Name=\"%s\">\r\n", namebuf);
3219 fprintf(fs, "<File Name=\"%s\" Size=\"%i\"", namebuf, node->size);
3220 if(node->f.b.hastth)
3222 hashbuf = base32encode(node->hashtth, 24);
3223 fprintf(fs, " TTH=\"%.39s\"", hashbuf);
3226 fprintf(fs, "/>\r\n");
3228 while(node->next == NULL)
3230 node = node->parent;
3231 if(node == shareroot)
3236 for(i = 0; i < lev; i++)
3238 fprintf(fs, "</Directory>\r\n");
3241 if(node == shareroot)
3247 #ifdef DCPP_MASQUERADE
3248 fprintf(fs, "</FileListing>");
3250 fprintf(fs, "</FileListing>\r\n");
3255 static void updatexmlbz2list(void)
3264 if(xmllistname == NULL)
3266 if((in = fopen(xmllistname, "r")) == NULL)
3268 flog(LOG_WARNING, "could not open XML file list for bzipping: %s", strerror(errno));
3271 if(xmlbz2listname != NULL)
3273 unlink(xmlbz2listname);
3274 free(xmlbz2listname);
3276 xmlbz2listname = sstrdup("/tmp/dc-filelist-dcxmlbz2-XXXXXX");
3277 if((fd = mkstemp(xmlbz2listname)) < 0)
3279 flog(LOG_WARNING, "could not create bzipped XML file list tempfile: %s", strerror(errno));
3280 free(xmlbz2listname);
3281 xmlbz2listname = NULL;
3285 if((real = fdopen(fd, "w")) == NULL)
3287 flog(LOG_WARNING, "could not fdopen bzipped XML list fd %i: %s", fd, strerror(errno));
3289 unlink(xmlbz2listname);
3290 free(xmlbz2listname);
3291 xmlbz2listname = NULL;
3295 out = BZ2_bzWriteOpen(&err, real, 9, 0, 0);
3298 flog(LOG_WARNING, "could not open bzip2 stream from XML list");
3300 unlink(xmlbz2listname);
3301 free(xmlbz2listname);
3302 xmlbz2listname = NULL;
3308 bufdata = fread(buf, 1, sizeof(buf), in);
3309 BZ2_bzWrite(&err, out, buf, bufdata);
3312 BZ2_bzWriteClose(&err, out, 0, NULL, NULL);
3316 static int shareupdate(unsigned long long uusharesize, void *data)
3324 static void dispatchcommand(struct qcommand *qcmd, struct command *cmdlist, struct socket *sk, void *data)
3327 struct command *cmd;
3329 if((p = strchr(qcmd->string, ' ')) != NULL)
3331 for(cmd = cmdlist; cmd->handler != NULL; cmd++)
3333 if(!strcmp(cmd->name, qcmd->string))
3336 if(cmd->handler != NULL)
3337 cmd->handler(sk, data, qcmd->string, p);
3340 flog(LOG_DEBUG, "Unimplemented DC command: %s \"%s\"", qcmd->string, p?p:"noargs");
3344 static int run(void)
3346 struct fnetnode *fn, *nextfn;
3348 struct dcpeer *peer, *nextpeer;
3349 struct qcommand *qcmd;
3353 for(fn = fnetnodes; fn != NULL; fn = nextfn)
3356 if(fn->fnet != &dcnet)
3358 if(fn->data == NULL)
3360 hub = (struct dchub *)fn->data;
3361 if((qcmd = ulqcmd(&hub->queue)) != NULL)
3363 if(*qcmd->string == '$')
3365 if((fn->sk != NULL) && (fn->sk->state == SOCK_EST))
3366 dispatchcommand(qcmd, hubcmds, fn->sk, fn);
3367 } else if(*qcmd->string != 0) {
3368 hubrecvchat(fn->sk, fn, NULL, qcmd->string);
3375 for(peer = peers; peer != NULL; peer = nextpeer)
3377 nextpeer = peer->next;
3378 if((qcmd = ulqcmd(&peer->queue)) != NULL)
3380 if(*qcmd->string == '$')
3381 dispatchcommand(qcmd, peercmds, peer->sk, peer);
3390 static void preinit(int hup)
3397 static int updateudpport(struct configvar *var, void *uudata)
3399 struct sockaddr_in addr;
3400 struct socket *newsock;
3402 memset(&addr, 0, sizeof(addr));
3403 addr.sin_family = AF_INET;
3404 addr.sin_port = htons(var->val.num);
3405 if((newsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3407 flog(LOG_WARNING, "could not create new DC UDP socket, reverting to old: %s", strerror(errno));
3410 newsock->readcb = udpread;
3417 static int updatetcpport(struct configvar *var, void *uudata)
3419 struct sockaddr_in addr;
3420 struct socket *newsock;
3422 memset(&addr, 0, sizeof(addr));
3423 addr.sin_family = AF_INET;
3424 addr.sin_port = htons(var->val.num);
3425 if((newsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3426 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3433 static int init(int hup)
3435 struct sockaddr_in addr;
3439 GCBREG(sharechangecb, shareupdate, NULL);
3444 addr.sin_family = AF_INET;
3445 memset(&addr.sin_addr, 0, sizeof(addr.sin_addr));
3446 addr.sin_port = htons(confgetint("dc", "udpport"));
3447 if((udpsock = netcsdgram((struct sockaddr *)&addr, sizeof(addr))) == NULL)
3449 flog(LOG_CRIT, "could not create DC UDP socket: %s", strerror(errno));
3452 udpsock->readcb = udpread;
3453 addr.sin_port = htons(confgetint("dc", "tcpport"));
3454 if((tcpsock = netcslisten(SOCK_STREAM, (struct sockaddr *)&addr, sizeof(addr), peeraccept, NULL)) == NULL)
3455 flog(LOG_INFO, "could not listen to a remote address, going into passive mode");
3456 CBREG(confgetvar("dc", "udpport"), conf_update, updateudpport, NULL, NULL);
3457 CBREG(confgetvar("dc", "tcpport"), conf_update, updatetcpport, NULL, NULL);
3458 CBREG(confgetvar("net", "mode"), conf_update, updatetcpport, NULL, NULL);
3463 static void terminate(void)
3465 if(hmlistname != NULL)
3470 if(xmllistname != NULL)
3472 unlink(xmllistname);
3475 if(xmlbz2listname != NULL)
3477 unlink(xmlbz2listname);
3478 free(xmlbz2listname);
3482 static struct configvar myvars[] =
3484 {CONF_VAR_STRING, "desc", {.str = L""}},
3485 {CONF_VAR_STRING, "speedstring", {.str = L"LAN(T1)"}},
3486 {CONF_VAR_STRING, "email", {.str = L"spam@spam.org"}},
3487 {CONF_VAR_INT, "udpport", {.num = 0}},
3488 {CONF_VAR_INT, "tcpport", {.num = 0}},
3492 static struct module me =
3501 .terminate = terminate,