utmp

Documentation

Index

• Constants
• type ExitStatus
• type TimeVal
• type UtmpEntry
  • func ReadFile(filename string) ([]UtmpEntry, error)
• type Utype

Constants

const (
	Empty        Utype = iota // record does not contain valid info (formerly known as UT_UNKNOWN on Linux)
	RunLevel           = iota // change in system run-level (see init(8))
	BootTime           = iota // time of system boot (in ut_tv)
	NewTime            = iota // time after system clock change (in ut_tv)
	OldTime            = iota // time before system clock change (in ut_tv)
	InitProcess        = iota // process spawned by init(8)
	LoginProcess       = iota // session leader process for user login
	UserProcess        = iota // normal process
	DeadProcess        = iota // terminated process
	Accounting         = iota // not implemented

	LineSize = 32
	NameSize = 32
	HostSize = 256
)

Type for ut_exit, below

Types

type ExitStatus

type ExitStatus struct {
	Termination int16 `json:"termination"` // process termination status
	Exit        int16 `json:"exit"`        // process exit status
}

type TimeVal

type TimeVal struct {
	Sec  int32 `json:"seconds"`
	Usec int32 `json:"microseconds"`
}

type UtmpEntry

type UtmpEntry struct {
	Type Utype // type of record

	Pid     int32          // PID of login process
	Device  [LineSize]byte // device name of tty - "/dev/"
	Id      [4]byte        // terminal name suffix or inittab(5) ID
	User    [NameSize]byte // username
	Host    [HostSize]byte // hostname for remote login or kernel version for run-level messages
	Exit    ExitStatus     // exit status of a process marked as DeadProcess; not used by Linux init(1)
	Session int32          // session ID (getsid(2)), used for windowing
	Time    TimeVal        // time entry was made
	Addr    [4]int32       // internet address of remote host; IPv4 address uses just Addr[0]
	Unused  [20]byte       // reserved for future use
	// contains filtered or unexported fields
}

http://man7.org/linux/man-pages/man5/utmp.5.html

func ReadFile

func ReadFile(filename string) ([]UtmpEntry, error)

type Utype

type Utype int16

Values for utmp.Type field