212634 2020-06-02 07:19:31 -0700 REGRESSION(r261387): Introduced sandbox violations 2020-06-09 10:55:30 -0700 1 1 1 Unclassified WebKit WebKit Misc. WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 pvollan pvollan bfulgham darin simon.fraser webkit-bug-importer oldest_to_newest 1658285 0 pvollan 2020-06-02 07:19:31 -0700 The change set r261387 introduced some new mach lookup sandbox violations, when attempting to close Launch Services connections that were not open. 1658288 1 pvollan 2020-06-02 07:22:18 -0700 rdar://problem/63676658 1658292 2 400819 pvollan 2020-06-02 07:30:57 -0700 Created attachment 400819 Patch 1658339 3 400819 darin 2020-06-02 09:28:12 -0700 Comment on attachment 400819 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=400819&action=review > Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:181 > + auto connection = [objc_getClass("_LSDReadService") XPCConnectionToService]; > + [connection invalidate]; How do we know this is the only connection we need to close? Seems very magical. Also seems unnecessary to use a local variable here. > Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:186 > ASSERT(String(uti.get()) = String(adoptCF(UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, CFSTR("text/html"), 0)).get())); This assertion is using assignment ("="), not an equality check ("=="). 1658392 4 400845 pvollan 2020-06-02 11:23:28 -0700 Created attachment 400845 Patch 1658397 5 pvollan 2020-06-02 11:26:47 -0700 (In reply to Darin Adler from comment #3) > Comment on attachment 400819 [details] > Patch > > View in context: > https://bugs.webkit.org/attachment.cgi?id=400819&action=review > > > Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:181 > > + auto connection = [objc_getClass("_LSDReadService") XPCConnectionToService]; > > + [connection invalidate]; > > How do we know this is the only connection we need to close? Seems very > magical. > > Also seems unnecessary to use a local variable here. > This is the only Launch Services connection type which is allowed (when holding the extension), so there cannot be any other Launch Services connections open. > > Source/WebKit/WebProcess/cocoa/WebProcessCocoa.mm:186 > > ASSERT(String(uti.get()) = String(adoptCF(UTTypeCreatePreferredIdentifierForTag(kUTTagClassMIMEType, CFSTR("text/html"), 0)).get())); > > This assertion is using assignment ("="), not an equality check ("=="). Ah, good catch! Thanks for reviewing! 1658421 6 ews-feeder 2020-06-02 13:04:04 -0700 Committed r262435: <https://trac.webkit.org/changeset/262435> All reviewed patches have been landed. Closing bug and clearing flags on attachment 400845. 1660735 7 400845 simon.fraser 2020-06-09 10:55:30 -0700 Comment on attachment 400845 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=400845&action=review > Source/WebCore/PAL/pal/spi/cocoa/LaunchServicesSPI.h:93 > +@interface _LSDReadService : _LSDService > +@end Let's not use non-SPI stuff in future. 400819 2020-06-02 07:30:57 -0700 2020-06-02 09:28:12 -0700 Patch bug-212634-20200602073056.patch text/plain 3497 pvollan SW5kZXg6IFNvdXJjZS9XZWJDb3JlL1BBTC9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291cmNl L1dlYkNvcmUvUEFML0NoYW5nZUxvZwkocmV2aXNpb24gMjYyNDE5KQorKysgU291cmNlL1dlYkNv cmUvUEFML0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE0IEBACisyMDIwLTA2 LTAyICBQZXIgQXJuZSBWb2xsYW4gIDxwdm9sbGFuQGFwcGxlLmNvbT4KKworICAgICAgICBSRUdS RVNTSU9OKHIyNjEzODcpOiBJbnRyb2R1Y2VkIHNhbmRib3ggdmlvbGF0aW9ucworICAgICAgICBo dHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MjEyNjM0CisKKyAgICAgICAg UmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgRGVjbGFyZSBMYXVuY2ggU2Vy dmljZXMgY2xhc3MuCisKKyAgICAgICAgKiBwYWwvc3BpL2NvY29hL0xhdW5jaFNlcnZpY2VzU1BJ Lmg6CisKIDIwMjAtMDUtMzEgIEplciBOb2JsZSAgPGplci5ub2JsZUBhcHBsZS5jb20+CiAKICAg ICAgICAgW0NvY29hXSBUcmFuc2l0aW9uIGJldHdlZW4gZW5jcnlwdGVkIGFuZCBjbGVhciBjb2Rl Y3MgdGhyb3dzIGVycm9yIGZyb20gU291cmNlQnVmZmVyLmFwcGVuZEJ1ZmZlcigpCkluZGV4OiBT b3VyY2UvV2ViQ29yZS9QQUwvcGFsL3NwaS9jb2NvYS9MYXVuY2hTZXJ2aWNlc1NQSS5oCj09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT0KLS0tIFNvdXJjZS9XZWJDb3JlL1BBTC9wYWwvc3BpL2NvY29hL0xhdW5jaFNlcnZpY2Vz U1BJLmgJKHJldmlzaW9uIDI2MjM4MCkKKysrIFNvdXJjZS9XZWJDb3JlL1BBTC9wYWwvc3BpL2Nv Y29hL0xhdW5jaFNlcnZpY2VzU1BJLmgJKHdvcmtpbmcgY29weSkKQEAgLTg2LDEwICs4NiwxMiBA QCBlbnVtIExTU2Vzc2lvbklEIHsKICNlbmRpZiAvLyAhVVNFKEFQUExFX0lOVEVSTkFMX1NESykK IAogQGludGVyZmFjZSBfTFNEU2VydmljZSA6IE5TT2JqZWN0IDxOU1hQQ0xpc3RlbmVyRGVsZWdh dGU+Ci0rIChOU0FycmF5PENsYXNzPiAqKWFsbFNlcnZpY2VDbGFzc2VzOwogKyAoTlNYUENDb25u ZWN0aW9uICopWFBDQ29ubmVjdGlvblRvU2VydmljZTsKIEBlbmQKIAorQGludGVyZmFjZSBfTFNE UmVhZFNlcnZpY2UgOiBfTFNEU2VydmljZQorQGVuZAorCiAjaWYgUExBVEZPUk0oTUFDKQogCiB0 eXBlZGVmIGNvbnN0IHN0cnVjdCBDRl9CUklER0VEX1RZUEUoaWQpIF9fTFNBU04qIExTQVNOUmVm OwpJbmRleDogU291cmNlL1dlYktpdC9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291cmNlL1dl YktpdC9DaGFuZ2VMb2cJKHJldmlzaW9uIDI2MjM4MCkKKysrIFNvdXJjZS9XZWJLaXQvQ2hhbmdl TG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMTggQEAKKzIwMjAtMDYtMDIgIFBlciBBcm5l IFZvbGxhbiAgPHB2b2xsYW5AYXBwbGUuY29tPgorCisgICAgICAgIFJFR1JFU1NJT04ocjI2MTM4 Nyk6IEludHJvZHVjZWQgc2FuZGJveCB2aW9sYXRpb25zCisgICAgICAgIGh0dHBzOi8vYnVncy53 ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTI2MzQKKworICAgICAgICBSZXZpZXdlZCBieSBO T0JPRFkgKE9PUFMhKS4KKworICAgICAgICBUaGUgY2hhbmdlIHNldCByMjYxMzg3IGludHJvZHVj ZWQgc29tZSBuZXcgbWFjaCBsb29rdXAgc2FuZGJveCB2aW9sYXRpb25zLCB3aGVuIGF0dGVtcHRp bmcgdG8gY2xvc2UgTGF1bmNoIFNlcnZpY2VzIGNvbm5lY3Rpb25zIHRoYXQgd2VyZSBub3Qgb3Bl bi4KKyAgICAgICAgRml4IHRoaXMgYnkgb25seSBhdHRlbXB0aW5nIHRvIGNsb3NlIG9wZW4gY29u bmVjdGlvbnMsIGFuZCBkbyBpdCB3aGlsZSBob2xkaW5nIHRoZSBleHRlbnNpb24gdG8gdGhlIGRh dGFiYXNlIG1hcHBpbmcgc2VydmljZS4KKworICAgICAgICBObyBuZXcgdGVzdHMsIHNpbmNlIHRo aXMgcGF0Y2ggaXMgZml4aW5nIGJlbmlnbiBzYW5kYm94IHZpb2xhdGlvbnMuCisKKyAgICAgICAg KiBXZWJQcm9jZXNzL2NvY29hL1dlYlByb2Nlc3NDb2NvYS5tbToKKyAgICAgICAgKFdlYktpdDo6 V2ViUHJvY2Vzczo6cGxhdGZvcm1Jbml0aWFsaXplV2ViUHJvY2Vzcyk6CisKIDIwMjAtMDYtMDEg IENocmlzIER1bWV6ICA8Y2R1bWV6QGFwcGxlLmNvbT4KIAogICAgICAgICBBU1NFUlRJT04gRkFJ TFVSRSAocjIyMDkzMSk6ICFtX2Z1bmN0aW9uIGluIH5Db21wbGV0aW9uSGFuZGxlcigpIGFmdGVy IHN3aXRjaCB0YWJzCkluZGV4OiBTb3VyY2UvV2ViS2l0L1dlYlByb2Nlc3MvY29jb2EvV2ViUHJv Y2Vzc0NvY29hLm1tCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIFNvdXJjZS9XZWJLaXQvV2ViUHJvY2Vzcy9jb2Nv YS9XZWJQcm9jZXNzQ29jb2EubW0JKHJldmlzaW9uIDI2MjM4MCkKKysrIFNvdXJjZS9XZWJLaXQv V2ViUHJvY2Vzcy9jb2NvYS9XZWJQcm9jZXNzQ29jb2EubW0JKHdvcmtpbmcgY29weSkKQEAgLTE3 NiwxNSArMTc2LDEzIEBAIHZvaWQgV2ViUHJvY2Vzczo6cGxhdGZvcm1Jbml0aWFsaXplV2ViUHIK ICAgICAgICAgQVNTRVJUX1VOVVNFRChvaywgb2spOwogICAgICAgICAvLyBQZXJmb3JtIEFQSSBj YWxscyB3aGljaCB3aWxsIGNvbW11bmljYXRlIHdpdGggdGhlIGRhdGFiYXNlIG1hcHBpbmcgc2Vy dmljZSwgYW5kIG1hcCB0aGUgZGF0YWJhc2UuCiAgICAgICAgIGF1dG8gdXRpID0gYWRvcHRDRihV VFR5cGVDcmVhdGVQcmVmZXJyZWRJZGVudGlmaWVyRm9yVGFnKGtVVFRhZ0NsYXNzTUlNRVR5cGUs IENGU1RSKCJ0ZXh0L2h0bWwiKSwgMCkpOworCisgICAgICAgIGF1dG8gY29ubmVjdGlvbiA9IFtv YmpjX2dldENsYXNzKCJfTFNEUmVhZFNlcnZpY2UiKSBYUENDb25uZWN0aW9uVG9TZXJ2aWNlXTsK KyAgICAgICAgW2Nvbm5lY3Rpb24gaW52YWxpZGF0ZV07CisKICAgICAgICAgb2sgPSBleHRlbnNp b24tPnJldm9rZSgpOwogICAgICAgICBBU1NFUlRfVU5VU0VEKG9rLCBvayk7CiAKLSAgICAgICAg YXV0byBzZXJ2aWNlcyA9IFtnZXRfTFNEU2VydmljZUNsYXNzKCkgYWxsU2VydmljZUNsYXNzZXNd OwotICAgICAgICBmb3IgKENsYXNzIGNscyBpbiBzZXJ2aWNlcykgewotICAgICAgICAgICAgYXV0 byBjb25uZWN0aW9uID0gW2NscyBYUENDb25uZWN0aW9uVG9TZXJ2aWNlXTsKLSAgICAgICAgICAg IFtjb25uZWN0aW9uIGludmFsaWRhdGVdOwotICAgICAgICB9Ci0KICAgICAgICAgQVNTRVJUKFN0 cmluZyh1dGkuZ2V0KCkpID0gU3RyaW5nKGFkb3B0Q0YoVVRUeXBlQ3JlYXRlUHJlZmVycmVkSWRl bnRpZmllckZvclRhZyhrVVRUYWdDbGFzc01JTUVUeXBlLCBDRlNUUigidGV4dC9odG1sIiksIDAp KS5nZXQoKSkpOwogICAgIH0KIAo= 400845 2020-06-02 11:23:28 -0700 2020-06-02 13:04:05 -0700 Patch bug-212634-20200602112327.patch text/plain 3778 pvollan SW5kZXg6IFNvdXJjZS9XZWJDb3JlL1BBTC9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291cmNl L1dlYkNvcmUvUEFML0NoYW5nZUxvZwkocmV2aXNpb24gMjYyNDMwKQorKysgU291cmNlL1dlYkNv cmUvUEFML0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDE0IEBACisyMDIwLTA2 LTAyICBQZXIgQXJuZSBWb2xsYW4gIDxwdm9sbGFuQGFwcGxlLmNvbT4KKworICAgICAgICBSRUdS RVNTSU9OKHIyNjEzODcpOiBJbnRyb2R1Y2VkIHNhbmRib3ggdmlvbGF0aW9ucworICAgICAgICBo dHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MjEyNjM0CisKKyAgICAgICAg UmV2aWV3ZWQgYnkgRGFyaW4gQWRsZXIuCisKKyAgICAgICAgRGVjbGFyZSBMYXVuY2ggU2Vydmlj ZXMgY2xhc3MuCisKKyAgICAgICAgKiBwYWwvc3BpL2NvY29hL0xhdW5jaFNlcnZpY2VzU1BJLmg6 CisKIDIwMjAtMDUtMzEgIEplciBOb2JsZSAgPGplci5ub2JsZUBhcHBsZS5jb20+CiAKICAgICAg ICAgW0NvY29hXSBUcmFuc2l0aW9uIGJldHdlZW4gZW5jcnlwdGVkIGFuZCBjbGVhciBjb2RlY3Mg dGhyb3dzIGVycm9yIGZyb20gU291cmNlQnVmZmVyLmFwcGVuZEJ1ZmZlcigpCkluZGV4OiBTb3Vy Y2UvV2ViQ29yZS9QQUwvcGFsL3NwaS9jb2NvYS9MYXVuY2hTZXJ2aWNlc1NQSS5oCj09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT0KLS0tIFNvdXJjZS9XZWJDb3JlL1BBTC9wYWwvc3BpL2NvY29hL0xhdW5jaFNlcnZpY2VzU1BJ LmgJKHJldmlzaW9uIDI2MjQzMCkKKysrIFNvdXJjZS9XZWJDb3JlL1BBTC9wYWwvc3BpL2NvY29h L0xhdW5jaFNlcnZpY2VzU1BJLmgJKHdvcmtpbmcgY29weSkKQEAgLTg2LDEwICs4NiwxMiBAQCBl bnVtIExTU2Vzc2lvbklEIHsKICNlbmRpZiAvLyAhVVNFKEFQUExFX0lOVEVSTkFMX1NESykKIAog QGludGVyZmFjZSBfTFNEU2VydmljZSA6IE5TT2JqZWN0IDxOU1hQQ0xpc3RlbmVyRGVsZWdhdGU+ Ci0rIChOU0FycmF5PENsYXNzPiAqKWFsbFNlcnZpY2VDbGFzc2VzOwogKyAoTlNYUENDb25uZWN0 aW9uICopWFBDQ29ubmVjdGlvblRvU2VydmljZTsKIEBlbmQKIAorQGludGVyZmFjZSBfTFNEUmVh ZFNlcnZpY2UgOiBfTFNEU2VydmljZQorQGVuZAorCiAjaWYgUExBVEZPUk0oTUFDKQogCiB0eXBl ZGVmIGNvbnN0IHN0cnVjdCBDRl9CUklER0VEX1RZUEUoaWQpIF9fTFNBU04qIExTQVNOUmVmOwpJ bmRleDogU291cmNlL1dlYktpdC9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291cmNlL1dlYktp dC9DaGFuZ2VMb2cJKHJldmlzaW9uIDI2MjQzMCkKKysrIFNvdXJjZS9XZWJLaXQvQ2hhbmdlTG9n CSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMTggQEAKKzIwMjAtMDYtMDIgIFBlciBBcm5lIFZv bGxhbiAgPHB2b2xsYW5AYXBwbGUuY29tPgorCisgICAgICAgIFJFR1JFU1NJT04ocjI2MTM4Nyk6 IEludHJvZHVjZWQgc2FuZGJveCB2aW9sYXRpb25zCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJr aXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMTI2MzQKKworICAgICAgICBSZXZpZXdlZCBieSBEYXJp biBBZGxlci4KKworICAgICAgICBUaGUgY2hhbmdlIHNldCByMjYxMzg3IGludHJvZHVjZWQgc29t ZSBuZXcgbWFjaCBsb29rdXAgc2FuZGJveCB2aW9sYXRpb25zLCB3aGVuIGF0dGVtcHRpbmcgdG8g Y2xvc2UgTGF1bmNoIFNlcnZpY2VzIGNvbm5lY3Rpb25zIHRoYXQgd2VyZSBub3Qgb3Blbi4KKyAg ICAgICAgRml4IHRoaXMgYnkgb25seSBhdHRlbXB0aW5nIHRvIGNsb3NlIG9wZW4gY29ubmVjdGlv bnMsIGFuZCBkbyBpdCB3aGlsZSBob2xkaW5nIHRoZSBleHRlbnNpb24gdG8gdGhlIGRhdGFiYXNl IG1hcHBpbmcgc2VydmljZS4KKworICAgICAgICBObyBuZXcgdGVzdHMsIHNpbmNlIHRoaXMgcGF0 Y2ggaXMgZml4aW5nIGJlbmlnbiBzYW5kYm94IHZpb2xhdGlvbnMuCisKKyAgICAgICAgKiBXZWJQ cm9jZXNzL2NvY29hL1dlYlByb2Nlc3NDb2NvYS5tbToKKyAgICAgICAgKFdlYktpdDo6V2ViUHJv Y2Vzczo6cGxhdGZvcm1Jbml0aWFsaXplV2ViUHJvY2Vzcyk6CisKIDIwMjAtMDYtMDIgIFRpbSBI b3J0b24gIDx0aW1vdGh5X2hvcnRvbkBhcHBsZS5jb20+CiAKICAgICAgICAgbWFjQ2F0YWx5c3Q6 IFdLV2ViVmlldydzIHRpbnQgY29sb3IgaXMgbm90IHByb3BhZ2F0ZWQgdG8gV2ViIENvbnRlbnQg cHJvY2VzcwpJbmRleDogU291cmNlL1dlYktpdC9XZWJQcm9jZXNzL2NvY29hL1dlYlByb2Nlc3ND b2NvYS5tbQo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2ViS2l0L1dlYlByb2Nlc3MvY29jb2EvV2Vi UHJvY2Vzc0NvY29hLm1tCShyZXZpc2lvbiAyNjI0MzApCisrKyBTb3VyY2UvV2ViS2l0L1dlYlBy b2Nlc3MvY29jb2EvV2ViUHJvY2Vzc0NvY29hLm1tCSh3b3JraW5nIGNvcHkpCkBAIC0xNzYsMTkg KzE3NiwxNSBAQCB2b2lkIFdlYlByb2Nlc3M6OnBsYXRmb3JtSW5pdGlhbGl6ZVdlYlByCiAgICAg ICAgIEFTU0VSVF9VTlVTRUQob2ssIG9rKTsKICAgICAgICAgLy8gUGVyZm9ybSBBUEkgY2FsbHMg d2hpY2ggd2lsbCBjb21tdW5pY2F0ZSB3aXRoIHRoZSBkYXRhYmFzZSBtYXBwaW5nIHNlcnZpY2Us IGFuZCBtYXAgdGhlIGRhdGFiYXNlLgogICAgICAgICBhdXRvIHV0aSA9IGFkb3B0Q0YoVVRUeXBl Q3JlYXRlUHJlZmVycmVkSWRlbnRpZmllckZvclRhZyhrVVRUYWdDbGFzc01JTUVUeXBlLCBDRlNU UigidGV4dC9odG1sIiksIDApKTsKKworICAgICAgICBbW29iamNfZ2V0Q2xhc3MoIl9MU0RSZWFk U2VydmljZSIpIFhQQ0Nvbm5lY3Rpb25Ub1NlcnZpY2VdIGludmFsaWRhdGVdOworCiAgICAgICAg IG9rID0gZXh0ZW5zaW9uLT5yZXZva2UoKTsKICAgICAgICAgQVNTRVJUX1VOVVNFRChvaywgb2sp OwogCi0gICAgICAgIGF1dG8gc2VydmljZXMgPSBbZ2V0X0xTRFNlcnZpY2VDbGFzcygpIGFsbFNl cnZpY2VDbGFzc2VzXTsKLSAgICAgICAgZm9yIChDbGFzcyBjbHMgaW4gc2VydmljZXMpIHsKLSAg ICAgICAgICAgIGF1dG8gY29ubmVjdGlvbiA9IFtjbHMgWFBDQ29ubmVjdGlvblRvU2VydmljZV07 Ci0gICAgICAgICAgICBbY29ubmVjdGlvbiBpbnZhbGlkYXRlXTsKLSAgICAgICAgfQotCi0gICAg ICAgIEFTU0VSVChTdHJpbmcodXRpLmdldCgpKSA9IFN0cmluZyhhZG9wdENGKFVUVHlwZUNyZWF0 ZVByZWZlcnJlZElkZW50aWZpZXJGb3JUYWcoa1VUVGFnQ2xhc3NNSU1FVHlwZSwgQ0ZTVFIoInRl eHQvaHRtbCIpLCAwKSkuZ2V0KCkpKTsKKyAgICAgICAgQVNTRVJUKFN0cmluZyh1dGkuZ2V0KCkp ID09IFN0cmluZyhhZG9wdENGKFVUVHlwZUNyZWF0ZVByZWZlcnJlZElkZW50aWZpZXJGb3JUYWco a1VUVGFnQ2xhc3NNSU1FVHlwZSwgQ0ZTVFIoInRleHQvaHRtbCIpLCAwKSkuZ2V0KCkpKTsKICAg ICB9CiAKLQogI2lmIFBMQVRGT1JNKElPU19GQU1JTFkpCiAgICAgaWYgKHBhcmFtZXRlcnMucnVu bmluZ2JvYXJkRXh0ZW5zaW9uSGFuZGxlKSB7CiAgICAgICAgIGF1dG8gZXh0ZW5zaW9uID0gU2Fu ZGJveEV4dGVuc2lvbjo6Y3JlYXRlKFdURk1vdmUoKnBhcmFtZXRlcnMucnVubmluZ2JvYXJkRXh0 ZW5zaW9uSGFuZGxlKSk7Cg==