42 lines
758 B
Go
42 lines
758 B
Go
package main
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import (
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"bytes"
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"fmt"
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"os/exec"
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"regexp"
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"strings"
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)
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type SSHkey struct {
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Size int
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Fingerprint string
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Comment string
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Algo string
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}
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func SSHkeyAnalyse(key string) (s SSHkey, err error) {
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cmd := exec.Command("ssh-keygen", "-l", "-f", "-")
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cmd.Stdin = strings.NewReader(key)
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var out bytes.Buffer
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cmd.Stdout = &out
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if err = cmd.Run(); err != nil {
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return
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}
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var validLine = regexp.MustCompile(`^([0-9]+)`)
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for _, line := range strings.Split(out.String(), "\n") {
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if validLine.MatchString(line) {
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s.Size, err = fmt.Sscanf("%d", validLine.SubexpNames()[1])
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s.Fingerprint = validLine.SubexpNames()[2]
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s.Comment = validLine.SubexpNames()[3]
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s.Algo = validLine.SubexpNames()[4]
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}
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}
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return
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}
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