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
|
/* ISC license. */
#include <string.h>
#include <stdint.h>
#include <errno.h>
#include <skalibs/posixishard.h>
#include <skalibs/uint64.h>
#include <skalibs/tai.h>
#include <skalibs/alloc.h>
#include <skalibs/genalloc.h>
#include <skalibs/unixmessage.h>
#include <skalibs/skaclient.h>
#include <skabus/pub.h>
static int handler (unixmessage_t const *m, void *x)
{
skabus_pub_t *a = (skabus_pub_t *)x ;
size_t n = genalloc_len(skabus_pub_cltinfo_t, &a->info) ;
char const *s = m->s ;
size_t len = m->len ;
skabus_pub_cltinfo_t *p ;
uint8_t idlen ;
if (len < 11 + TAIN_PACK || !m->nfds) goto errproto ;
if (!genalloc_readyplus(skabus_pub_cltinfo_t, &a->info, 1)) goto err ;
p = genalloc_s(skabus_pub_cltinfo_t, &a->info) + n ;
p->fd = m->fds[0] ;
p->nfds = m->nfds - 1 ;
if (p->nfds > 1)
{
p->fds = alloc(p->nfds * sizeof(int)) ;
if (!p->fds) goto err ;
for (size_t i = 0 ; i < p->nfds ; i++) p->fds[i] = m->fds[1 + i] ;
}
else p->fds = 0 ;
uint64_unpack_big(s, &p->msginfo.serial) ; s += 8 ; len -= 8 ;
tain_unpack(s, &p->msginfo.timestamp) ; s += TAIN_PACK ; len -= TAIN_PACK ;
p->msginfo.flags = *s++ ; len-- ;
idlen = *s++ ; len-- ;
if (len != (size_t)idlen + 1 || s[idlen] || idlen > SKABUS_PUB_IDSTR_SIZE) goto errprotof ;
memcpy(p->msginfo.sender, s, len) ;
genalloc_setlen(skabus_pub_cltinfo_t, &a->info, n+1) ;
return 1 ;
errprotof:
alloc_free(p->fds) ;
errproto:
errno = EPROTO ;
err:
unixmessage_drop(m) ;
return 0 ;
}
int skabus_pub_update (skabus_pub_t *a)
{
return skaclient_update(&a->connection, &handler, a) ;
}
|
