1 /**
2 * Copyright © 2016 IBM Corporation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <err.h>
18 #include <unistd.h>
19
20 #include "console-server.h"
21
write_buf_to_fd(int fd,const uint8_t * buf,size_t len)22 int write_buf_to_fd(int fd, const uint8_t *buf, size_t len)
23 {
24 size_t pos;
25 ssize_t rc;
26
27 for (pos = 0; pos < len; pos += rc) {
28 rc = write(fd, buf + pos, len - pos);
29 if (rc <= 0) {
30 warn("Write error");
31 return -1;
32 }
33 }
34
35 return 0;
36 }
37