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Pull request: 3257 source directive

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Merge in DNS/adguard-home from 3257-ifaces-source to master

Updates #3257.

Squashed commit of the following:

commit 0b9b42bab731bbd048e97893cf209794ea014dfe
Merge: 530a1a23 e25a5329
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Mon Jun 28 16:53:36 2021 +0300

    Merge branch 'master' into 3257-ifaces-source

commit 530a1a23a601c5575c8dc5f6f97cd84801cf911b
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Jun 25 19:43:55 2021 +0300

    aghnet: imp code, add docs

commit 58de84821b93bcbb3df1834ba33fbad817201b1d
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Jun 25 13:34:43 2021 +0300

    aghnet: sup "source" directive

commit c0901abd5212902295e8ee546fad652092fdb5a8
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Jun 24 16:46:03 2021 +0300

    aghos: mv func to aghnet
This commit is contained in:
Eugene Burkov
2021-06-28 17:02:45 +03:00
parent e25a532987
commit 28f34ca399
15 changed files with 229 additions and 82 deletions
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10
internal/aghos/os_linux.go
View File

@@ -9,18 +9,8 @@ import (
"path/filepath"
"strings"
"syscall"
"golang.org/x/sys/unix"
)
func canBindPrivilegedPorts() (can bool, err error) {
cnbs, err := unix.PrctlRetInt(unix.PR_CAP_AMBIENT, unix.PR_CAP_AMBIENT_IS_SET, unix.CAP_NET_BIND_SERVICE, 0, 0)
// Don't check the error because it's always nil on Linux.
adm, _ := haveAdminRights()
return cnbs == 1 || adm, err
}
func setRlimit(val uint64) (err error) {
var rlim syscall.Rlimit
rlim.Max = val