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Be more careful in case a platform doesn't define UIO_MAXIOV nor IOV_MAX

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This commit is contained in:
Matt Johnston 2014-05-20 21:21:02 +08:00
parent 0e0ff51582
commit 2a1d28ea3a
1 changed files with 5 additions and 4 deletions
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9
packet.c
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@ -70,7 +70,7 @@ void write_packet() {
TRACE2(("enter write_packet"))
dropbear_assert(!isempty(&ses.writequeue));
#ifdef HAVE_WRITEV
#if defined(HAVE_WRITEV) && (defined(IOV_MAX) || defined(UIO_MAXIOV))
#ifndef IOV_MAX
#define IOV_MAX UIO_MAXIOV
@ -79,7 +79,9 @@ void write_packet() {
/* Make sure the size of the iov is below the maximum allowed by the OS. */
iov_max_count = ses.writequeue.count;
if (iov_max_count > IOV_MAX)
{
iov_max_count = IOV_MAX;
}
iov = m_malloc(sizeof(*iov) * iov_max_count);
for (l = ses.writequeue.head, i = 0; l; l = l->link, i++)
@ -124,8 +126,7 @@ void write_packet() {
}
m_free(iov);
#else
#else /* No writev () */
/* Get the next buffer in the queue of encrypted packets to write*/
writebuf = (buffer*)examine(&ses.writequeue);
@ -160,8 +161,8 @@ void write_packet() {
/* More packet left to write, leave it in the queue for later */
buf_incrpos(writebuf, written);
}
#endif /* writev */
#endif
now = monotonic_now();
ses.last_trx_packet_time = now;