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
|
/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/posixishard.h>
#include <skalibs/stralloc.h>
#include <skalibs/genalloc.h>
#include <s6-dns/s6dns-message.h>
int s6dns_message_parse_answer_strings (s6dns_message_rr_t const *rr, char const *packet, unsigned int packetlen, unsigned int pos, unsigned int section, void *stuff)
{
s6dns_mpag_t *data = stuff ;
if ((section == 2) && (rr->rtype == data->rtype))
{
size_t base = data->sa.len ;
int wasnull = !data->sa.s ;
unsigned int start = pos ;
int r ;
if (!stralloc_readyplus(&data->sa, rr->rdlength + 1)) return -1 ;
r = s6dns_message_get_strings(data->sa.s + data->sa.len, rr->rdlength, packet, packetlen, &pos) ;
if ((r < 0) || (rr->rdlength != pos - start))
{
if (wasnull) stralloc_free(&data->sa) ; else data->sa.len = base ;
return (errno = EPROTO, 0) ;
}
if (!genalloc_append(size_t, &data->offsets, &data->sa.len))
{
if (wasnull) stralloc_free(&data->sa) ; else data->sa.len = base ;
return (errno = EPROTO, -1) ;
}
data->sa.len += r ;
stralloc_0(&data->sa) ;
}
return 1 ;
}
|
