1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
#include "std.h"
#include "dat.h"
Logbuf confbuf;
void
confirmread(Req *r)
{
lbread(&confbuf, r);
}
void
confirmflush(Req *r)
{
lbflush(&confbuf, r);
}
int
confirmwrite(char *s)
{
char *t, *ans;
int allow;
ulong tag;
Attr *a;
Conv *c;
a = _parseattr(s);
if(a == nil){
werrstr("bad attr");
return -1;
}
if((t = _strfindattr(a, "tag")) == nil){
werrstr("no tag");
return -1;
}
tag = strtoul(t, 0, 0);
if((ans = _strfindattr(a, "answer")) == nil){
werrstr("no answer");
return -1;
}
if(strcmp(ans, "yes") == 0)
allow = 1;
else if(strcmp(ans, "no") == 0)
allow = 0;
else{
werrstr("bad answer");
return -1;
}
for(c=conv; c; c=c->next){
if(tag == c->tag){
nbsendul(c->keywait, allow);
break;
}
}
if(c == nil){
werrstr("tag not found");
return -1;
}
return 0;
}
int
confirmkey(Conv *c, Key *k)
{
if(*confirminuse == 0)
return -1;
lbappend(&confbuf, "confirm tag=%lud %A %N", c->tag, k->attr, k->privattr);
c->state = "keyconfirm";
return recvul(c->keywait);
}
Logbuf needkeybuf;
void
needkeyread(Req *r)
{
lbread(&needkeybuf, r);
}
void
needkeyflush(Req *r)
{
lbflush(&needkeybuf, r);
}
int
needkeywrite(char *s)
{
char *t;
ulong tag;
Attr *a;
Conv *c;
a = _parseattr(s);
if(a == nil){
werrstr("empty write");
return -1;
}
if((t = _strfindattr(a, "tag")) == nil){
werrstr("no tag");
freeattr(a);
return -1;
}
tag = strtoul(t, 0, 0);
for(c=conv; c; c=c->next)
if(c->tag == tag){
nbsendul(c->keywait, 0);
break;
}
if(c == nil){
werrstr("tag not found");
freeattr(a);
return -1;
}
freeattr(a);
return 0;
}
int
needkey(Conv *c, Attr *a)
{
if(c == nil || *needkeyinuse == 0)
return -1;
lbappend(&needkeybuf, "needkey tag=%lud %A", c->tag, a);
return nbrecvul(c->keywait);
}
int
badkey(Conv *c, Key *k, char *msg, Attr *a)
{
if(c == nil || *needkeyinuse == 0)
return -1;
lbappend(&needkeybuf, "badkey tag=%lud %A %N\n%s\n%A",
c->tag, k->attr, k->privattr, msg, a);
return nbrecvul(c->keywait);
}
|