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conn, device, tun: set CLOEXEC on fds

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Brad Fitzpatrick
2022-07-01 21:28:52 -07:00
committed by Jason A. Donenfeld
parent 6a08d81f6b
commit c31a7b1ab4
6 changed files with 36 additions and 24 deletions
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4
conn/bind_linux.go
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@@ -331,7 +331,7 @@ func create4(port uint16) (int, uint16, error) {
fd, err := unix.Socket(
unix.AF_INET,
unix.SOCK_DGRAM,
unix.SOCK_DGRAM|unix.SOCK_CLOEXEC,
0,
)
if err != nil {
@@ -373,7 +373,7 @@ func create6(port uint16) (int, uint16, error) {
fd, err := unix.Socket(
unix.AF_INET6,
unix.SOCK_DGRAM,
unix.SOCK_DGRAM|unix.SOCK_CLOEXEC,
0,
)
if err != nil {