diff options
Diffstat (limited to 'winsup/cygwin/cygheap.h')
-rw-r--r-- | winsup/cygwin/cygheap.h | 47 |
1 files changed, 19 insertions, 28 deletions
diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h index 963d9c4db..f765541c4 100644 --- a/winsup/cygwin/cygheap.h +++ b/winsup/cygwin/cygheap.h @@ -92,14 +92,6 @@ enum homebodies CH_HOME }; -enum impersonation -{ - IMP_BAD = -1, - IMP_NONE = 0, - IMP_EXTERNAL, - IMP_INTERNAL -}; - class cygheap_user { /* Extendend user information. @@ -125,7 +117,7 @@ public: to `set_impersonation_token()'. */ HANDLE external_token; HANDLE internal_token; - enum impersonation impersonation_state; + HANDLE current_token; /* CGF 2002-06-27. I removed the initializaton from this constructor since this class is always allocated statically. That means that everything @@ -170,41 +162,40 @@ public: PSID sid () const { return psid; } PSID orig_sid () const { return orig_psid; } const char *ontherange (homebodies what, struct passwd * = NULL); - bool issetuid () const - { - return impersonation_state > IMP_NONE; - } - HANDLE token () - { - if (impersonation_state == IMP_EXTERNAL) - return external_token; - if (impersonation_state == IMP_INTERNAL) - return internal_token; - return INVALID_HANDLE_VALUE; - } + bool issetuid () const { return current_token != INVALID_HANDLE_VALUE; } + HANDLE token () { return current_token; } void deimpersonate () { - if (impersonation_state > IMP_NONE) + if (issetuid ()) RevertToSelf (); } void reimpersonate () { - if (impersonation_state > IMP_NONE + if (issetuid () && !ImpersonateLoggedOnUser (token ())) system_printf ("ImpersonateLoggedOnUser: %E"); } - bool has_impersonation_tokens () { return external_token || internal_token; } + bool has_impersonation_tokens () + { return external_token != INVALID_HANDLE_VALUE + || internal_token != INVALID_HANDLE_VALUE + || current_token != INVALID_HANDLE_VALUE; } void close_impersonation_tokens () { - if (external_token) + if (current_token != INVALID_HANDLE_VALUE) + { + if( current_token != external_token && current_token != internal_token) + CloseHandle (current_token); + current_token = INVALID_HANDLE_VALUE; + } + if (external_token != INVALID_HANDLE_VALUE) { CloseHandle (external_token); - external_token = 0; + external_token = INVALID_HANDLE_VALUE; } - if (internal_token) + if (internal_token != INVALID_HANDLE_VALUE) { CloseHandle (internal_token); - internal_token = 0; + internal_token = INVALID_HANDLE_VALUE; } } const char *cygheap_user::test_uid (char *&, const char *, size_t) |