utilities

func PipeCommands ¶

func PipeCommands(commands ...*exec.Cmd) ([]byte, error)

PipeCommands executes the commands received as input by feeding the output of one to the input of the other, exactly like Unix Pipe (|). Returns the output of the final command and the eventual error.

code inspired by https://gist.github.com/tyndyll/89fbb2c2273f83a074dc

func SafeJoin ¶

func SafeJoin(parent, subdir string) (string, error)

SafeJoin performs a filepath.Join of 'parent' and 'subdir' but returns an error if the resulting path points outside of 'parent'.

func SaveFileonTempDir ¶

func SaveFileonTempDir(filename string, data io.Reader) (string, error)

SaveFileonTempDir creates a temp directory and saves the file data as the filename in that directory. Returns an error if the agent doesn't have permission to create the folder. Returns an error if the filename doesn't form a valid path.

Note that path could be defined and still there could be an error.

func TellCommandNotToSpawnShell ¶

func TellCommandNotToSpawnShell(_ *exec.Cmd)

TellCommandNotToSpawnShell will now spawn a shell

func VerifyInput ¶

func VerifyInput(input string, signature string) error

VerifyInput will verify an input against a signature A valid signature is indicated by returning a nil error.