// RunCommandStatus attachs a shell and runs the command within the container.
// The process will wait for the command to finish and return the result of
// waitpid(), i.e. the process' exit status. An error is returned only when
// invocation of the command completely fails.
func (c *Container) RunCommandStatus(args []string, options AttachOptions) (int, error) {
if len(args) == 0 {
return -1, ErrInsufficientNumberOfArguments
}
if err := c.makeSure(isRunning); err != nil {
return -1, err
}
c.mu.Lock()
defer c.mu.Unlock()
cargs := makeNullTerminatedArgs(args)
if cargs == nil {
return -1, ErrAllocationFailed
}
defer freeNullTerminatedArgs(cargs, len(args))
cenv := makeNullTerminatedArgs(options.Env)
if cenv == nil {
return -1, ErrAllocationFailed
}
defer freeNullTerminatedArgs(cenv, len(options.Env))
cenvToKeep := makeNullTerminatedArgs(options.EnvToKeep)
if cenvToKeep == nil {
return -1, ErrAllocationFailed
}
defer freeNullTerminatedArgs(cenvToKeep, len(options.EnvToKeep))
cwd := C.CString(options.Cwd)
defer C.free(unsafe.Pointer(cwd))
ret := int(C.go_lxc_attach_run_wait(
c.container,
C.bool(options.ClearEnv),
C.int(options.Namespaces),
C.long(options.Arch),
C.uid_t(options.UID),
C.gid_t(options.GID),
C.int(options.StdinFd),
C.int(options.StdoutFd),
C.int(options.StderrFd),
cwd,
cenv,
cenvToKeep,
cargs,
))
return ret, nil
}
// RunCommandWithClearEnvironment runs the user specified command inside the container
// and waits for it to exit. It clears all environment variables before running.
// stdinfd: fd to read input from
// stdoutfd: fd to write output to
// stderrfd: fd to write error output to
func (c *Container) RunCommandWithClearEnvironment(stdinfd, stdoutfd, stderrfd uintptr, args ...string) error {
if args == nil {
return ErrInsufficientNumberOfArguments
}
if err := c.makeSure(isDefined | isRunning); err != nil {
return err
}
c.mu.Lock()
defer c.mu.Unlock()
cargs := makeNullTerminatedArgs(args)
defer freeNullTerminatedArgs(cargs, len(args))
if int(C.go_lxc_attach_run_wait(c.container, true, C.int(stdinfd), C.int(stdoutfd), C.int(stderrfd), cargs)) < 0 {
return ErrAttachFailed
}
return nil
}