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jfr.im git - irc/quakenet/newserv.git/blob - nick/nick.c
4 #include "../lib/flags.h"
5 #include "../lib/irc_string.h"
6 #include "../lib/base64.h"
7 #include "../irc/irc.h"
8 #include "../irc/irc_config.h"
9 #include "../core/error.h"
10 #include "../core/hooks.h"
11 #include "../lib/sstring.h"
12 #include "../server/server.h"
13 #include "../parser/parser.h"
14 #include "../lib/version.h"
15 #include "../core/nsmalloc.h"
23 const flag umodeflags
[] = {
25 { 'w', UMODE_WALLOPS
},
28 { 'k', UMODE_SERVICE
},
31 { 'r', UMODE_ACCOUNT
},
32 { 'n', UMODE_HIDECHAN
},
33 { 'x', UMODE_HIDEHOST
},
34 { 'h', UMODE_SETHOST
},
35 { 'R', UMODE_REGPRIV
},
36 { 'I', UMODE_HIDEIDLE
},
37 { 'P', UMODE_PARANOID
},
40 const flag accountflags
[] = {
42 { 'h', AFLAG_SUPPORT
},
45 { 'd', AFLAG_DEVELOPER
},
48 #define nickhash(x) ((crc32i(x))%NICKHASHSIZE)
50 nick
*nicktable
[NICKHASHSIZE
];
51 nick
**servernicks
[MAXSERVERS
];
53 sstring
*nickextnames
[MAXNICKEXTS
];
55 void nickstats(int hooknum
, void *arg
);
57 char *NULLAUTHNAME
= "";
63 /* Clear up the nicks in authext */
64 for (i
=0;i
<AUTHNAMEHASHSIZE
;i
++)
65 for (anp
=authnametable
[i
];anp
;anp
=anp
->next
)
70 memset(nicktable
,0,sizeof(nicktable
));
71 memset(servernicks
,0,sizeof(servernicks
));
73 /* If we're connected to IRC, force a disconnect. This needs to be done
74 * before we register all our hooks which would otherwise get called
75 * during the disconnect. */
77 irc_send("%s SQ %s 0 :Resync [adding nick support]",mynumeric
->content
,myserver
->content
); irc_disconnected();
80 /* Register our hooks */
81 registerhook(HOOK_SERVER_NEWSERVER
,&handleserverchange
);
82 registerhook(HOOK_SERVER_LOSTSERVER
,&handleserverchange
);
83 registerhook(HOOK_CORE_STATSREQUEST
,&nickstats
);
85 /* And our server handlers */
86 registerserverhandler("N",&handlenickmsg
,10);
87 registerserverhandler("D",&handlekillmsg
,2);
88 registerserverhandler("Q",&handlequitmsg
,1);
89 registerserverhandler("M",&handleusermodemsg
,3);
90 registerserverhandler("W",&handlewhoismsg
,2);
91 registerserverhandler("AC",&handleaccountmsg
,4);
92 registerserverhandler("R",&handlestatsmsg
,2);
93 registerserverhandler("P",&handleprivmsg
,2);
94 registerserverhandler("A",&handleawaymsg
,1);
96 /* Fake the addition of our own server */
97 handleserverchange(HOOK_SERVER_NEWSERVER
,(void *)numerictolong(mynumeric
->content
,2));
106 for (i
=0;i
<NICKHASHSIZE
;i
++) {
107 for (np
=nicktable
[i
];np
;np
=np
->next
) {
108 freesstring(np
->shident
);
109 freesstring(np
->sethost
);
110 freesstring(np
->opername
);
111 if(!np
->auth
&& np
->authname
&& (np
->authname
!= NULLAUTHNAME
))
116 nsfreeall(POOL_NICK
);
119 deregisterhook(HOOK_SERVER_NEWSERVER
,&handleserverchange
);
120 deregisterhook(HOOK_SERVER_LOSTSERVER
,&handleserverchange
);
121 deregisterhook(HOOK_CORE_STATSREQUEST
,&nickstats
);
123 /* And our server handlers */
124 deregisterserverhandler("N",&handlenickmsg
);
125 deregisterserverhandler("D",&handlekillmsg
);
126 deregisterserverhandler("Q",&handlequitmsg
);
127 deregisterserverhandler("M",&handleusermodemsg
);
128 deregisterserverhandler("W",&handlewhoismsg
);
129 deregisterserverhandler("AC",&handleaccountmsg
);
130 deregisterserverhandler("R",&handlestatsmsg
);
131 deregisterserverhandler("P",&handleprivmsg
);
132 deregisterserverhandler("A",&handleawaymsg
);
136 * This function handles servers appearing and disappearing.
137 * For a new server, the client table is allocated.
138 * For a disappearing server, all it's clients are killed and the client table is freed.
141 void handleserverchange(int hooknum
, void *arg
) {
148 case HOOK_SERVER_NEWSERVER
:
149 servernicks
[servernum
]=(nick
**)nsmalloc(POOL_NICK
,(serverlist
[servernum
].maxusernum
+1)*sizeof(nick
**));
150 memset(servernicks
[servernum
],0,(serverlist
[servernum
].maxusernum
+1)*sizeof(nick
**));
153 case HOOK_SERVER_LOSTSERVER
:
154 for (i
=0;i
<=serverlist
[servernum
].maxusernum
;i
++) {
155 if (servernicks
[servernum
][i
]!=NULL
) {
156 deletenick(servernicks
[servernum
][i
]);
159 nsfree(POOL_NICK
,servernicks
[servernum
]);
167 * This function handles the removal of a nick from the network
170 void deletenick(nick
*np
) {
173 /* Fire the hook. This will deal with removal from channels etc. */
174 triggerhook(HOOK_NICK_LOSTNICK
, np
);
176 /* Release the realname and hostname parts */
178 for (nh
=&(np
->realname
->nicks
);*nh
;nh
=&((*nh
)->nextbyrealname
)) {
180 *nh
=np
->nextbyrealname
;
185 for (nh
=&(np
->host
->nicks
);*nh
;nh
=&((*nh
)->nextbyhost
)) {
192 releaserealname(np
->realname
);
193 releasehost(np
->host
);
197 if(np
->authname
&& (np
->authname
!= NULLAUTHNAME
))
200 np
->auth
->usercount
--;
202 for (nh
=&(np
->auth
->nicks
);*nh
;nh
=&((*nh
)->nextbyauthname
)) {
204 *nh
=np
->nextbyauthname
;
209 releaseauthname(np
->auth
);
213 freesstring(np
->shident
); /* freesstring(NULL) is OK */
214 freesstring(np
->sethost
);
215 freesstring(np
->opername
);
217 node_decrement_usercount(np
->ipnode
);
218 derefnode(iptree
, np
->ipnode
);
220 /* TODO: figure out how to cleanly remove nodes without affecting other modules */
222 /* Delete the nick from the servernick table */
223 *(gethandlebynumericunsafe(np
->numeric
))=NULL
;
225 /* Remove the nick from the hash table */
226 removenickfromhash(np
);
231 void addnicktohash(nick
*np
) {
232 np
->next
=nicktable
[nickhash(np
->nick
)];
233 nicktable
[nickhash(np
->nick
)]=np
;
236 void removenickfromhash(nick
*np
) {
239 for (nh
=&(nicktable
[nickhash(np
->nick
)]);*nh
;nh
=&((*nh
)->next
)) {
247 nick
*getnickbynick(const char *name
) {
250 for (np
=nicktable
[nickhash(name
)];np
;np
=np
->next
) {
251 if (!ircd_strcmp(np
->nick
,name
))
258 void nickstats(int hooknum
, void *arg
) {
259 int total
,maxchain
,curchain
,i
,buckets
;
264 buckets
=total
=maxchain
=curchain
=0;
265 for (i
=0;i
<NICKHASHSIZE
;i
++,curchain
=0) {
269 for (;np
;np
=np
->next
) {
274 if (curchain
>maxchain
) {
281 sprintf(buf
,"Nick : %6d nicks (HASH: %6d/%6d, chain %3d)",total
,buckets
,NICKHASHSIZE
,maxchain
);
282 } else if ((long)arg
>2) {
283 sprintf(buf
,"Nick : %6d users on network.",total
);
287 triggerhook(HOOK_CORE_STATSREPLY
,buf
);
291 int registernickext(const char *name
) {
294 if (findnickext(name
)!=-1) {
295 Error("nick",ERR_WARNING
,"Tried to register duplicate nick extension %s",name
);
299 for (i
=0;i
<MAXNICKEXTS
;i
++) {
300 if (nickextnames
[i
]==NULL
) {
301 nickextnames
[i
]=getsstring(name
,100);
306 Error("nick",ERR_WARNING
,"Tried to register too many nick extensions: %s",name
);
310 int findnickext(const char *name
) {
313 for (i
=0;i
<MAXNICKEXTS
;i
++) {
314 if (nickextnames
[i
]!=NULL
&& !ircd_strcmp(name
,nickextnames
[i
]->content
)) {
322 void releasenickext(int index
) {
326 freesstring(nickextnames
[index
]);
327 nickextnames
[index
]=NULL
;
329 for (i
=0;i
<NICKHASHSIZE
;i
++) {
330 for (np
=nicktable
[i
];np
;np
=np
->next
) {
331 np
->exts
[index
]=NULL
;
337 * Produces the "apparent" hostmask as seen by network users.
340 char *visiblehostmask(nick
*np
, char *buf
) {
341 char uhbuf
[USERLEN
+HOSTLEN
+2];
343 visibleuserhost(np
, uhbuf
);
344 sprintf(buf
,"%s!%s",np
->nick
,uhbuf
);
350 * As above without nick
353 char *visibleuserhost(nick
*np
, char *buf
) {
354 char hostbuf
[HOSTLEN
+1];
358 host
=np
->host
->name
->content
;
362 ident
=np
->shident
->content
;
365 host
=np
->sethost
->content
;
367 } else if (IsAccount(np
) && IsHideHost(np
)) {
368 sprintf(hostbuf
,"%s.%s", np
->authname
, HIS_HIDDENHOST
);
372 sprintf(buf
,"%s@%s",ident
,host
);
380 * gethandlebynumeric:
381 * Given a numeric, gives the location in the servernicks table
382 * where it should be. Does not check that the nick currently found
383 * there (if any) has the correct numeric; this is left to the
384 * calling function to figure out.
387 nick
**gethandlebynumeric(long numeric
) {
392 /* Shift off the client identifier part of the numeric to get the server ID */
393 servernum
=(numeric
>>18);
395 if ((serv
=getserverdata(servernum
))==NULL
) {
396 Error("nick",ERR_WARNING
,"Numeric %ld refers to non-existent server %d",numeric
,servernum
);
400 /* Compute the masked numeric */
401 maskednum
=numeric
&(serv
->maxusernum
);
403 return (servernicks
[servernum
])+maskednum
;
407 * getnickbynumeric[str]()
408 * These functions retrieve a nick based on it's numeric on the network
409 * Use the approriate function depending on how your numeric is expressed..
412 nick
*getnickbynumeric(long numeric
) {
415 nh
=gethandlebynumeric(numeric
);
417 if ((*nh
) && ((*nh
)->numeric
!=numeric
)) {
418 /* We found a masked numeric match, but the actual numeric
419 * is different. This counts as a miss. */
426 nick
*getnickbynumericstr(char *numericstr
) {
427 return getnickbynumeric(numerictolong(numericstr
,5));