sysutil

Documentation

Overview

Package sysutil contains utilities for functions requiring system calls.

Index

• Constants
• func CanBindPrivilegedPorts() (can bool, err error)
• func ConfigureSyslog(serviceName string) error
• func GatewayIP(ifaceName string) net.IP
• func HaveAdminRights() (bool, error)
• func IfaceHasStaticIP(ifaceName string) (has bool, err error)
• func IfaceSetStaticIP(ifaceName string) (err error)
• func SendProcessSignal(pid int, sig syscall.Signal) error
• func SetRlimit(val uint)

Constants

const ErrNoStaticIPInfo agherr.Error = "no information about static ip"

ErrNoStaticIPInfo is returned by IfaceHasStaticIP when no information about the IP being static is available.

Functions

func CanBindPrivilegedPorts

func CanBindPrivilegedPorts() (can bool, err error)

CanBindPrivilegedPorts checks if current process can bind to privileged ports.

func ConfigureSyslog

func ConfigureSyslog(serviceName string) error

ConfigureSyslog reroutes standard logger output to syslog.

func GatewayIP

func GatewayIP(ifaceName string) net.IP

GatewayIP returns IP address of interface's gateway.

func HaveAdminRights

func HaveAdminRights() (bool, error)

HaveAdminRights checks if the current user has root (administrator) rights.

func IfaceHasStaticIP

func IfaceHasStaticIP(ifaceName string) (has bool, err error)

IfaceHasStaticIP checks if interface is configured to have static IP address. If it can't give a definitive answer, it returns false and an error for which errors.Is(err, ErrNoStaticIPInfo) is true.

func IfaceSetStaticIP

func IfaceSetStaticIP(ifaceName string) (err error)

IfaceSetStaticIP sets static IP address for network interface.

func SendProcessSignal

func SendProcessSignal(pid int, sig syscall.Signal) error

SendProcessSignal sends signal to a process.

func SetRlimit

func SetRlimit(val uint)

SetRlimit sets user-specified limit of how many fd's we can use https://github.com/AdguardTeam/AdGuardHome/internal/issues/659.