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make ipv4/ipv6 code parallel

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and thus more clearly correct
weirdly, since it is using unsafe
This commit is contained in:
Josh Bleecher Snyder 2021-07-08 13:58:06 -07:00
parent 152038cabd
commit 5023b6b0c3
1 changed files with 3 additions and 4 deletions
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7
net/uring/io_uring_linux.go
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@ -5,7 +5,6 @@ package uring
import "C"
import (
"encoding/binary"
"errors"
"fmt"
"net"
@ -289,9 +288,9 @@ func (u *UDPConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
copy(rbuf, p)
if u.is4 {
// TODO: are the following two lines of code correct?
ipu32 := binary.BigEndian.Uint32(udpAddr.IP)
r.sa.sin_addr.s_addr = C.uint32_t(endian.Hton32(ipu32))
dst := (*[4]byte)((unsafe.Pointer)(&r.sa.sin_addr.s_addr))
src := (*[4]byte)((unsafe.Pointer)(&udpAddr.IP[0]))
*dst = *src
r.sa.sin_port = C.uint16_t(endian.Hton16(uint16(udpAddr.Port)))
r.sa.sin_family = C.AF_INET
} else {