35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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# define USSL_DEFAULT_VERSION 1
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int send_negotiation_message(int fd, const char *b, int sz)
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{
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int err = 0;
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char buf[USSL_BUF_LEN];
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negotiation_head_t *h = (typeof(h))buf;
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if (sz + sizeof(*h) > sizeof(buf)) {
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err = -EINVAL;
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} else {
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h->magic = NEGOTIATION_MAGIC;
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h->version = USSL_DEFAULT_VERSION;
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h->len = sz;
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memcpy(h + 1, b, sz);
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ssize_t wbytes = 0;
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while ((wbytes = libc_write(fd, buf, sizeof(*h) + sz)) < 0 && EINTR == errno)
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;
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if (wbytes != sz + sizeof(*h)) {
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err = -EIO;
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}
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}
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return err;
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} |