module KerberosAuthenticator::Krb5
An FFI wrapper around the Kerberos 5 library. Use the environmental variable FFI_KRB5_LIBRARY_NAME to override the library loaded.
Constants
- PREFERRED_VERSIONS
Version suffixes of the library to search for, in order:
-
.3: MIT as of Debian 8, RHEL 7
-
.26: Heimdal as of Debian 8, RHEL 7
and then no suffix (which should pickup OS X Kerberos).
-
Public Class Methods
attach_function(c_name, params, returns, options = {})
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Attaches a Kerberos library function to Krb5
. Extends FFI's built-in method to:
-
drop the krb5_ prefix from function names
-
wrap any call returning a krb5_error_code with
Krb5::LibCallError.raise_if_error
@api private @see www.rubydoc.info/github/ffi/ffi/FFI/Library#attach_function-instance_method FFI::Library#attach_function
Calls superclass method
# File lib/kerberos_authenticator/krb5/attach_function.rb, line 9 def self.attach_function(c_name, params, returns, options = {}) ruby_name = c_name.to_s.gsub(/^krb5_/, '').to_sym super(ruby_name, c_name, params, returns, options) if returns == :krb5_error_code no_check_name = "#{ruby_name}_without_catching_error" alias_method(no_check_name, ruby_name) if params.first == :krb5_context define_method(ruby_name) do |*args, &block| Krb5::LibCallError.raise_if_error(args.first) { public_send(no_check_name, *args, &block) } end else define_method(ruby_name) do |*args, &block| Krb5::LibCallError.raise_if_error(nil) { public_send(no_check_name, *args, &block) } end end module_function no_check_name end module_function ruby_name end
use_secure_context()
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# File lib/kerberos_authenticator/krb5.rb, line 28 def self.use_secure_context @use_secure_context end
use_secure_context=(v)
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# File lib/kerberos_authenticator/krb5.rb, line 32 def self.use_secure_context=(v) @use_secure_context = v end