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
|
#include "ssh.h"
#include "mpint.h"
key_components *key_components_new(void)
{
key_components *kc = snew(key_components);
kc->ncomponents = 0;
kc->componentsize = 0;
kc->components = NULL;
return kc;
}
static void key_components_add_str(key_components *kc, const char *name,
KeyComponentType type, ptrlen data)
{
sgrowarray(kc->components, kc->componentsize, kc->ncomponents);
size_t n = kc->ncomponents++;
kc->components[n].name = dupstr(name);
kc->components[n].type = type;
kc->components[n].str = strbuf_dup_nm(data);
}
void key_components_add_text(key_components *kc,
const char *name, const char *value)
{
key_components_add_str(kc, name, KCT_TEXT, ptrlen_from_asciz(value));
}
void key_components_add_text_pl(key_components *kc,
const char *name, ptrlen value)
{
key_components_add_str(kc, name, KCT_TEXT, value);
}
void key_components_add_binary(key_components *kc,
const char *name, ptrlen value)
{
key_components_add_str(kc, name, KCT_BINARY, value);
}
void key_components_add_mp(key_components *kc,
const char *name, mp_int *value)
{
sgrowarray(kc->components, kc->componentsize, kc->ncomponents);
size_t n = kc->ncomponents++;
kc->components[n].name = dupstr(name);
kc->components[n].type = KCT_MPINT;
kc->components[n].mp = mp_copy(value);
}
void key_components_add_uint(key_components *kc,
const char *name, uintmax_t value)
{
mp_int *mpvalue = mp_from_integer(value);
key_components_add_mp(kc, name, mpvalue);
mp_free(mpvalue);
}
void key_components_add_copy(key_components *kc,
const char *name, const key_component *value)
{
switch (value->type) {
case KCT_TEXT:
case KCT_BINARY:
key_components_add_str(kc, name, value->type,
ptrlen_from_strbuf(value->str));
break;
case KCT_MPINT:
key_components_add_mp(kc, name, value->mp);
break;
}
}
void key_components_free(key_components *kc)
{
for (size_t i = 0; i < kc->ncomponents; i++) {
key_component *comp = &kc->components[i];
sfree(comp->name);
switch (comp->type) {
case KCT_MPINT:
mp_free(comp->mp);
break;
case KCT_TEXT:
case KCT_BINARY:
strbuf_free(comp->str);
break;
default:
unreachable("bad key component type");
}
}
sfree(kc->components);
sfree(kc);
}
|
