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57583275 | 1 | #include "authext.h" |
2 | #include "../core/nsmalloc.h" | |
3 | #include "../core/error.h" | |
4 | #include "../lib/sstring.h" | |
5 | #include "../lib/irc_string.h" | |
6 | ||
7 | #include <string.h> | |
8 | ||
9 | #define ALLOCUNIT 100 | |
10 | ||
11 | #define authnamehash(x) ((x)%AUTHNAMEHASHSIZE) | |
12 | ||
13 | authname *freeauthnames; | |
14 | authname *authnametable[AUTHNAMEHASHSIZE]; | |
15 | ||
16 | sstring *authnameextnames[MAXAUTHNAMEEXTS]; | |
17 | ||
18 | void _init() { | |
19 | freeauthnames=NULL; | |
20 | memset(authnametable,0,sizeof(authnametable)); | |
21 | } | |
22 | ||
23 | void _fini() { | |
24 | nsfreeall(POOL_AUTHEXT); | |
25 | } | |
26 | ||
27 | authname *newauthname() { | |
28 | authname *anp; | |
29 | int i; | |
30 | ||
31 | if (freeauthnames==NULL) { | |
32 | freeauthnames=(authname *)nsmalloc(POOL_AUTHEXT, ALLOCUNIT*sizeof(authname)); | |
33 | for (i=0;i<(ALLOCUNIT-1);i++) { | |
34 | freeauthnames[i].next=&(freeauthnames[i+1]); | |
35 | } | |
36 | freeauthnames[ALLOCUNIT-1].next=NULL; | |
37 | } | |
38 | ||
39 | anp=freeauthnames; | |
40 | freeauthnames=anp->next; | |
41 | ||
42 | return anp; | |
43 | } | |
44 | ||
45 | void freeauthname (authname *anp) { | |
46 | anp->next=freeauthnames; | |
47 | freeauthnames=anp; | |
48 | } | |
49 | ||
50 | int registerauthnameext(const char *name) { | |
51 | int i; | |
52 | ||
53 | if (findauthnameext(name)!=-1) { | |
54 | Error("nick",ERR_WARNING,"Tried to register duplicate authname extension %s",name); | |
55 | return -1; | |
56 | } | |
57 | ||
58 | for (i=0;i<MAXAUTHNAMEEXTS;i++) { | |
59 | if (authnameextnames[i]==NULL) { | |
60 | authnameextnames[i]=getsstring(name,100); | |
61 | return i; | |
62 | } | |
63 | } | |
64 | ||
65 | Error("nick",ERR_WARNING,"Tried to register too many authname extensions: %s",name); | |
66 | return -1; | |
67 | } | |
68 | ||
69 | int findauthnameext(const char *name) { | |
70 | int i; | |
71 | ||
72 | for (i=0;i<MAXAUTHNAMEEXTS;i++) { | |
73 | if (authnameextnames[i]!=NULL && !ircd_strcmp(name,authnameextnames[i]->content)) { | |
74 | return i; | |
75 | } | |
76 | } | |
77 | ||
78 | return -1; | |
79 | } | |
80 | ||
81 | void releaseauthnameext(int index) { | |
82 | int i; | |
83 | authname *anp; | |
84 | ||
85 | freesstring(authnameextnames[index]); | |
86 | authnameextnames[index]=NULL; | |
87 | ||
88 | for (i=0;i<AUTHNAMEHASHSIZE;i++) { | |
89 | for (anp=authnametable[i];anp;anp=anp->next) { | |
90 | anp->exts[index]=NULL; | |
91 | } | |
92 | } | |
93 | } | |
94 | ||
95 | authname *findauthname(unsigned long userid) { | |
96 | authname *anp; | |
97 | ||
98 | if(!userid) | |
99 | return NULL; | |
100 | ||
101 | for (anp=authnametable[authnamehash(userid)];anp;anp=(authname *)anp->next) | |
102 | if (userid==anp->userid) | |
103 | return anp; | |
104 | ||
105 | return NULL; | |
106 | } | |
107 | ||
108 | authname *findorcreateauthname(unsigned long userid) { | |
109 | authname *anp; | |
110 | unsigned int thehash=authnamehash(userid); | |
111 | ||
112 | if(!userid) | |
113 | return NULL; | |
114 | ||
115 | for (anp=authnametable[thehash];anp;anp=(authname *)anp->next) | |
116 | if (userid==anp->userid) | |
117 | return anp; | |
118 | ||
119 | anp=newauthname(); | |
120 | anp->userid=userid; | |
121 | anp->usercount=0; | |
122 | anp->marker=0; | |
123 | anp->nicks=NULL; | |
124 | memset(anp->exts, 0, MAXAUTHNAMEEXTS * sizeof(void *)); | |
125 | anp->next=(struct authname *)authnametable[thehash]; | |
126 | authnametable[thehash]=anp; | |
127 | ||
128 | return anp; | |
129 | } | |
130 | ||
131 | void releaseauthname(authname *anp) { | |
132 | authname **manp; | |
133 | int i; | |
134 | if (anp->usercount==0) { | |
135 | for(i=0;i<MAXAUTHNAMEEXTS;i++) | |
136 | if(anp->exts[i]!=NULL) | |
137 | return; | |
138 | ||
139 | for(manp=&(authnametable[authnamehash(anp->userid)]);*manp;manp=(authname **)&((*manp)->next)) { | |
140 | if ((*manp)==anp) { | |
141 | (*manp)=(authname *)anp->next; | |
142 | freeauthname(anp); | |
143 | return; | |
144 | } | |
145 | } | |
146 | Error("nick",ERR_ERROR,"Unable to remove authname %lu from hashtable",anp->userid); | |
147 | } | |
148 | } | |
149 | ||
150 | unsigned int nextauthnamemarker() { | |
151 | int i; | |
152 | authname *anp; | |
153 | static unsigned int authnamemarker=0; | |
154 | ||
155 | authnamemarker++; | |
156 | if (!authnamemarker) { | |
157 | /* If we wrapped to zero, zap the marker on all records */ | |
158 | for (i=0;i<AUTHNAMEHASHSIZE;i++) | |
159 | for (anp=authnametable[i];anp;anp=anp->next) | |
160 | anp->marker=0; | |
161 | authnamemarker++; | |
162 | } | |
163 | ||
164 | return authnamemarker; | |
165 | } |