79 lines
1.2 KiB
Go
79 lines
1.2 KiB
Go
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package main
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import (
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"bufio"
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"io"
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"strings"
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)
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type Action uint8
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const (
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SysInit Action = iota
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Wait
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Once
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Respawn
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AskFirst
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Shutdown
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Restart
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CtrlAltDel
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)
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var ActionMap = map[string]Action{
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"sysinit": SysInit,
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"wait": Wait,
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"once": Once,
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"respawn": Respawn,
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"askfirst": AskFirst,
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"shutdown": Shutdown,
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"restart": Restart,
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"ctrlaltdel": CtrlAltDel,
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}
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type TabEntry struct {
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Id string
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Action Action
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Process string
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}
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var DefaultInittab = []TabEntry{
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{"", SysInit, "/etc/init.d/rcS"},
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{"", AskFirst, "/bin/sh"},
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{"", CtrlAltDel, "/sbin/reboot"},
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{"", Shutdown, "/sbin/swapoff -a"},
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{"", Shutdown, "/bin/umount -a -r"},
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{"", Restart, "/sbin/init"},
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{"tty2", AskFirst, "/bin/sh"},
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{"tty3", AskFirst, "/bin/sh"},
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{"tty4", AskFirst, "/bin/sh"},
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}
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func ParseInittab(reader io.Reader) []TabEntry {
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var res []TabEntry
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scanner := bufio.NewScanner(reader)
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for scanner.Scan() {
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line := scanner.Text()
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if strings.HasPrefix(line, "#") {
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continue
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}
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tokens := strings.Split(line, ":")
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if len(tokens) != 4 {
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continue
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}
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action, ok := ActionMap[tokens[2]]
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if !ok {
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continue
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}
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res = append(res, TabEntry{
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Id: tokens[0],
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Action: action,
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Process: tokens[3],
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})
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}
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return res
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}
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