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
|
/* ISC license. */
#include <sys/uio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <skalibs/types.h>
#include <skalibs/error.h>
#include <skalibs/allreadwrite.h>
#include <skalibs/djbunix.h>
#include <skalibs/textmessage.h>
#include <skalibs/textclient.h>
int textclient_server_init_frompipe (textmessage_receiver_t *in, textmessage_sender_t *syncout, textmessage_sender_t *asyncout, char const *before, size_t beforelen, char const *after, size_t afterlen, tain_t const *deadline, tain_t *stamp)
{
struct iovec v ;
unsigned int asyncfd ;
char *x = getenv(SKALIBS_CHILD_SPAWN_FDS_ENVVAR) ;
if (!x
|| !uint0_scan(x, &asyncfd)
|| asyncfd == textmessage_sender_fd(syncout)
|| asyncfd == textmessage_receiver_fd(in)) return (errno = EPROTO, 0) ;
if (sanitize_read(textmessage_timed_receive(in, &v, deadline, stamp)) <= 0) return 0 ;
if (v.iov_len != beforelen || memcmp(v.iov_base, before, beforelen)) return (errno = EPROTO, 0) ;
if (fcntl(asyncfd, F_GETFD) < 0) return 0 ;
if (!textmessage_timed_send(syncout, after, afterlen, deadline, stamp)) return 0 ;
textmessage_sender_init(asyncout, asyncfd) ;
if (!textmessage_timed_send(asyncout, after, afterlen, deadline, stamp)) return 0 ;
return 1 ;
}
|
