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/* ISC license. */
#include <string.h>
#include <errno.h>
#include <skalibs/posixplz.h>
#include <skalibs/stralloc.h>
#include <skalibs/djbunix.h>
#include <skalibs/socket.h>
#include <skalibs/skamisc.h>
#include <skalibs/unix-timed.h>
#include <bcnm/config.h>
#include <bcnm/wpactrl.h>
#include "wpactrl-internal.h"
int wpactrl_start (wpactrl_t *a, char const *path, unsigned int timeout, tain_t *stamp)
{
tain_t tto, deadline ;
int fda, fds ;
stralloc sa = STRALLOC_ZERO ;
if (timeout) tain_from_millisecs(&tto, timeout) ;
else tto = tain_infinite_relative ;
if (!stralloc_cats(&sa, BCNM_TMPDIR)) return 0 ;
if (!stralloc_cats(&sa, "/libwpactrl")
|| !sauniquename(&sa)
|| !stralloc_catb(&sa, ":s", 3)) goto err ;
fds = ipc_datagram_nbcoe() ;
if (fds < 0) goto err ;
unlink_void(sa.s) ;
tain_add(&deadline, &tto, stamp) ;
if (ipc_bind(fds, sa.s) == -1
|| !ipc_timed_connect(fds, path, &deadline, stamp)) goto errs ;
fda = ipc_datagram_nbcoe() ;
if (fda < 0) goto errs ;
sa.s[sa.len - 2] = 'a' ;
unlink_void(sa.s) ;
if (ipc_bind(fda, sa.s) == -1
|| !ipc_timed_connect(fda, path, &deadline, stamp)
|| !ipc_timed_send(fda, "ATTACH", 6, &deadline, stamp)) goto erra ;
{
ssize_t r ;
char answer[3] ;
r = wpactrl_fd_timed_recv(fda, answer, 3, &deadline, stamp) ;
if (r != 3 || memcmp(answer, "OK\n", 3)) goto erra ;
}
if (!stralloc_shrink(&sa)) goto erra ;
a->clientpath = sa ;
a->fds = fds ;
a->fda = fda ;
a->tto = tto ;
return 1 ;
erra:
fd_close(fda) ;
errs:
fd_close(fds) ;
err:
stralloc_free(&sa) ;
return 0 ;
}
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