lib/ffi/libc/libc.rb in ffi-libc-0.0.2 vs lib/ffi/libc/libc.rb in ffi-libc-0.0.3

@@ -6,19 +6,25 @@
 
 module FFI
   module LibC
     extend FFI::Library
 
-    ffi_lib 'c'
+    ffi_lib [FFI::CURRENT_PROCESS, 'c']
 
     # errno.h
     attach_variable :sys_errlist, :pointer
     attach_variable :sys_nerr, :int
     attach_variable :errno, :int
 
     # unistd.h
     attach_function :brk, [:pointer], :int
     attach_function :sbrk, [:pointer], :pointer
+    attach_function :getpid, [], :pid_t
+    attach_function :getppid, [], :pid_t
+    attach_function :getuid, [], :uid_t
+    attach_function :geteuid, [], :uid_t
+    attach_function :getgid, [], :gid_t
+    attach_function :getegid, [], :gid_t
 
     # stdlib.h
     attach_function :calloc, [:size_t, :size_t], :pointer
     attach_function :malloc, [:size_t], :pointer
     attach_function :free, [:pointer], :void