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authorJason A. Donenfeld <Jason@zx2c4.com>2023-10-21 19:06:38 +0200
committerJason A. Donenfeld <Jason@zx2c4.com>2023-10-21 19:06:38 +0200
commitf502ec3fad116d11109529bcf283e464f4822c18 (patch)
tree034d378d38f9ecf48894c0a380a028f2ca085666
parent5d37bd24e14e3fff6c1ce61e299480beb3d68c00 (diff)
conn: fix cmsg data padding calculation for gso
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--conn/gso_linux.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/conn/gso_linux.go b/conn/gso_linux.go
index b8599ce..8596b29 100644
--- a/conn/gso_linux.go
+++ b/conn/gso_linux.go
@@ -56,7 +56,7 @@ func setGSOSize(control *[]byte, gsoSize uint16) {
hdr.Level = unix.SOL_UDP
hdr.Type = unix.UDP_SEGMENT
hdr.SetLen(unix.CmsgLen(sizeOfGSOData))
- copy((gsoControl)[unix.SizeofCmsghdr:], unsafe.Slice((*byte)(unsafe.Pointer(&gsoSize)), sizeOfGSOData))
+ copy((gsoControl)[unix.CmsgLen(0):], unsafe.Slice((*byte)(unsafe.Pointer(&gsoSize)), sizeOfGSOData))
*control = (*control)[:existingLen+space]
}