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
|
/* ISC license. */
#include <string.h>
#include <errno.h>
#include <bearssl.h>
#include <skalibs/buffer.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/djbunix.h>
#include <s6-networking/sbearssl.h>
int sbearssl_cert_readfile (char const *fn, genalloc *certs, stralloc *sa)
{
char buf[SBEARSSL_MAXCERTFILESIZE] ;
size_t certsbase = genalloc_len(sbearssl_cert, certs) ;
size_t sabase = sa->len ;
size_t n ;
int certswasnull = !genalloc_s(sbearssl_cert, certs) ;
int sawasnull = !sa->s ;
{
ssize_t r = openreadnclose(fn, buf, SBEARSSL_MAXCERTFILESIZE) ;
if (r < 0) return r ;
n = r ;
}
if (sbearssl_isder((unsigned char *)buf, n))
{
sbearssl_cert cert = { .data = sa->len, .datalen = n } ;
if (!stralloc_catb(sa, buf, n)) return -1 ;
if (!genalloc_append(sbearssl_cert, certs, &cert)) goto fail ;
}
else
{
genalloc pems = GENALLOC_ZERO ;
size_t i = 0 ;
sbearssl_pemobject *p ;
int r = sbearssl_pem_decode_from_string(buf, n, &pems, sa) ;
if (r) return r ;
p = genalloc_s(sbearssl_pemobject, &pems) ;
n = genalloc_len(sbearssl_pemobject, &pems) ;
for (; i < n ; i++)
{
char const *name = sa->s + p[i].name ;
if (!strcmp(name, "CERTIFICATE")
|| !strcmp(name, "X509 CERTIFICATE"))
{
sbearssl_cert cert = { .data = p[i].data, .datalen = p[i].datalen } ;
if (!genalloc_append(sbearssl_cert, certs, &cert))
{
genalloc_free(sbearssl_pemobject, &pems) ;
goto fail ;
}
}
genalloc_free(sbearssl_pemobject, &pems) ;
}
}
return 0 ;
fail:
if (certswasnull) genalloc_free(sbearssl_cert, certs) ;
else genalloc_setlen(sbearssl_cert, certs, certsbase) ;
if (sawasnull) stralloc_free(sa) ;
else sa->len = sabase ;
return -1 ;
}
|
