OpenSSH ssh_config(5) parser

This package implements a simple parser for the ssh_config(5) configuration file used by OpenSSH.

This package at the moment only supports a subset of the syntax used by ssh_config(5); the current implemented features are:

• consider only the first value found for each option
• expand some tokens (like %h and %p) for specific options (e.g. ProxyCommand)
• Host pattern matching and patterns negation are supported

See the documentation at godoc.org.

Example usage

You create SSHConfig objects by calling ReadSSHConfig(filename string) which can be used to lookup SSH options for a specific name (which can be either a hostname or a alias).

import (
  "github.com/piger/sshconfig"
)

sshConfig, err := ReadSSHConfig("/home/myuser/.ssh/config)
if err != nil {
  log.Fatal(err)
}

hostConfig, err := sshConfig.Lookup("db1.example.com")
if err != nil {
  log.Fatal(err)
}

if opt, ok := hostConfig["hostname"]; ok {
    fmt.Printf("ProxyCommand for db1: %s", opt)
}

Notes

• Option names are converted to lowercase during parsing of the configuration file