506b459842
Merge in DNS/adguard-home from 3225-bsd-dhcp to master Closes #3225. Closes #3417. Squashed commit of the following: commit e7ea691824c7ebc8cafd8c9e206679346cbc8592 Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Aug 12 17:02:02 2021 +0300 all: imp code, docs commit 5b598fc18a9b69a0256569f4c691bb6a2193dfbd Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Aug 12 16:28:12 2021 +0300 all: mv logic, imp code, docs, log changes commit e3e1577a668fe3e5c61d075c390e4bd7268181ba Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Aug 12 14:15:10 2021 +0300 dhcpd: imp checkother commit 3cc8b058195c30a7ef0b7741ee8463270d9e47ff Author: Eugene Burkov <e.burkov@adguard.com> Date: Wed Aug 11 13:20:18 2021 +0300 all: imp bsd support
71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
//go:build openbsd
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// +build openbsd
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package aghnet
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import (
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"bufio"
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"fmt"
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"io"
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"net"
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"os"
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"strings"
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"github.com/AdguardTeam/AdGuardHome/internal/aghio"
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"github.com/AdguardTeam/AdGuardHome/internal/aghos"
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"github.com/AdguardTeam/golibs/errors"
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)
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func canBindPrivilegedPorts() (can bool, err error) {
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return aghos.HaveAdminRights()
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}
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// maxCheckedFileSize is the maximum acceptable length of the /etc/hostname.*
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// files.
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const maxCheckedFileSize = 1024 * 1024
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func ifaceHasStaticIP(ifaceName string) (ok bool, err error) {
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const filenameFmt = "/etc/hostname.%s"
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filename := fmt.Sprintf(filenameFmt, ifaceName)
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var f *os.File
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if f, err = os.Open(filename); err != nil {
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if errors.Is(err, os.ErrNotExist) {
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err = nil
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}
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return false, err
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}
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defer func() { err = errors.WithDeferred(err, f.Close()) }()
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var r io.Reader
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r, err = aghio.LimitReader(f, maxCheckedFileSize)
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if err != nil {
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return false, err
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}
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return hostnameIfStaticConfig(r)
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}
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// hostnameIfStaticConfig checks if the interface is configured by
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// /etc/hostname.* to have a static IP.
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//
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// TODO(e.burkov): The platform-dependent functions to check the static IP
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// address configured are rather similar. Think about unifying common parts.
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func hostnameIfStaticConfig(r io.Reader) (has bool, err error) {
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s := bufio.NewScanner(r)
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for s.Scan() {
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line := strings.TrimSpace(s.Text())
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fields := strings.Fields(line)
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if len(fields) >= 2 && fields[0] == "inet" && net.ParseIP(fields[1]) != nil {
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return true, s.Err()
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}
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}
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return false, s.Err()
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}
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func ifaceSetStaticIP(string) (err error) {
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return aghos.Unsupported("setting static ip")
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}
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