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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2015 Nahanni Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
#include "sockstream.h"
ssize_t
stream_read(int fd, void *buf, ssize_t nbytes)
{
uint8_t *p;
ssize_t len = 0;
ssize_t n;
p = buf;
while (len < nbytes) {
n = read(fd, p + len, nbytes - len);
if (n == 0)
break;
if (n < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return (n);
}
len += n;
}
return (len);
}
ssize_t
stream_write(int fd, const void *buf, ssize_t nbytes)
{
const uint8_t *p;
ssize_t len = 0;
ssize_t n;
p = buf;
while (len < nbytes) {
n = write(fd, p + len, nbytes - len);
if (n == 0)
break;
if (n < 0) {
if (errno == EINTR || errno == EAGAIN)
continue;
return (n);
}
len += n;
}
return (len);
}
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