d6c6e05727
Co-authored-by: zhjc1124 <zhjc1124@gmail.com> Co-authored-by: BinChenn <binchenn.bc@gmail.com> Co-authored-by: oceanoverflow <oceanoverflow@gmail.com>
23 lines
557 B
C
23 lines
557 B
C
# 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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} |