Ly8gQ29weXJpZ2h0IDIwMTMgVGhlIEZsdXR0ZXIgQXV0aG9ycy4gQWxsIHJpZ2h0cyByZXNlcnZlZC4KLy8gVXNlIG9mIHRoaXMgc291cmNlIGNvZGUgaXMgZ292ZXJuZWQgYnkgYSBCU0Qtc3R5bGUgbGljZW5zZSB0aGF0IGNhbiBiZQovLyBmb3VuZCBpbiB0aGUgTElDRU5TRSBmaWxlLgoKI2luY2x1ZGUgImltcGVsbGVyL2FyY2hpdmlzdC9hcmNoaXZlLmgiCgojaW5jbHVkZSA8aXRlcmF0b3I+CgojaW5jbHVkZSAiZmx1dHRlci9mbWwvbG9nZ2luZy5oIgojaW5jbHVkZSAiaW1wZWxsZXIvYXJjaGl2aXN0L2FyY2hpdmVfY2xhc3NfcmVnaXN0cmF0aW9uLmgiCiNpbmNsdWRlICJpbXBlbGxlci9hcmNoaXZpc3QvYXJjaGl2ZV9kYXRhYmFzZS5oIgojaW5jbHVkZSAiaW1wZWxsZXIvYXJjaGl2aXN0L2FyY2hpdmVfbG9jYXRpb24uaCIKI2luY2x1ZGUgImltcGVsbGVyL2Jhc2UvdmFsaWRhdGlvbi5oIgoKbmFtZXNwYWNlIGltcGVsbGVyIHsKCkFyY2hpdmU6OkFyY2hpdmUoY29uc3Qgc3RkOjpzdHJpbmcmIHBhdGgpCiAgICA6IGRhdGFiYXNlXyhzdGQ6Om1ha2VfdW5pcXVlPEFyY2hpdmVEYXRhYmFzZT4ocGF0aCkpIHt9CgpBcmNoaXZlOjp+QXJjaGl2ZSgpIHsKICBGTUxfRENIRUNLKHRyYW5zYWN0aW9uX2NvdW50XyA9PSAwKQogICAgICA8PCAiVGhlcmUgbXVzdCBiZSBubyBwZW5kaW5nIHRyYW5zYWN0aW9ucyI7Cn0KCmJvb2wgQXJjaGl2ZTo6SXNWYWxpZCgpIGNvbnN0IHsKICByZXR1cm4gZGF0YWJhc2VfLT5Jc1ZhbGlkKCk7Cn0KCnN0ZDo6b3B0aW9uYWw8aW50NjRfdCAvKiByb3cgaWQgKi8+IEFyY2hpdmU6OkFyY2hpdmVJbnN0YW5jZSgKICAgIGNvbnN0IEFyY2hpdmVEZWYmIGRlZmluaXRpb24sCiAgICBjb25zdCBBcmNoaXZhYmxlJiBhcmNoaXZhYmxlKSB7CiAgaWYgKCFJc1ZhbGlkKCkpIHsKICAgIHJldHVybiBzdGQ6Om51bGxvcHQ7CiAgfQoKICBhdXRvIHRyYW5zYWN0aW9uID0gZGF0YWJhc2VfLT5DcmVhdGVUcmFuc2FjdGlvbih0cmFuc2FjdGlvbl9jb3VudF8pOwoKICBjb25zdCBhdXRvKiByZWdpc3RyYXRpb24gPQogICAgICBkYXRhYmFzZV8tPkdldFJlZ2lzdHJhdGlvbkZvckRlZmluaXRpb24oZGVmaW5pdGlvbik7CgogIGlmIChyZWdpc3RyYXRpb24gPT0gbnVsbHB0cikgewogICAgcmV0dXJuIHN0ZDo6bnVsbG9wdDsKICB9CgogIGF1dG8gc3RhdGVtZW50ID0gcmVnaXN0cmF0aW9uLT5DcmVhdGVJbnNlcnRTdGF0ZW1lbnQoKTsKCiAgaWYgKCFzdGF0ZW1lbnQuSXNWYWxpZCgpIHx8ICFzdGF0ZW1lbnQuUmVzZXQoKSkgewogICAgLyoKICAgICAqICBNdXN0IGJlIGFibGUgdG8gcmVzZXQgdGhlIHN0YXRlbWVudCBmb3IgYSBuZXcgd3JpdGUKICAgICAqLwogICAgcmV0dXJuIHN0ZDo6bnVsbG9wdDsKICB9CgogIGF1dG8gcHJpbWFyeV9rZXkgPSBhcmNoaXZhYmxlLkdldFByaW1hcnlLZXkoKTsKCiAgLyoKICAgKiAgVGhlIGxpZmVjeWNsZSBvZiB0aGUgYXJjaGl2ZSBpdGVtIGlzIHRpZWQgdG8gdGhpcyBzY29wZSBhbmQgdGhlcmUgaXMgbm8KICAgKiAgd2F5IGZvciB0aGUgdXNlciB0byBjcmVhdGUgYW4gaW5zdGFuY2Ugb2YgYW4gYXJjaGl2ZSBpdGVtLiBTbyBpdHMgc2FmZQogICAqICBmb3IgaXRzIG1lbWJlcnMgdG8gYmUgcmVmZXJlbmNlcy4gSXQgZG9lcyBub3QgbWFuYWdlIHRoZSBsaWZldGltZXMgb2YKICAgKiAgYW55dGhpbmcuCiAgICovCiAgQXJjaGl2ZUxvY2F0aW9uIGl0ZW0oKnRoaXMsIHN0YXRlbWVudCwgKnJlZ2lzdHJhdGlvbiwgcHJpbWFyeV9rZXkpOwoKICAvKgogICAqICBJZiB0aGUgaXRlbSBwcm92aWRlcyBpdHMgb3duIHByaW1hcnkga2V5LCB3ZSBuZWVkIHRvIGJpbmQgaXQgbm93LgogICAqIE90aGVyd2lzZSwgb25lIHdpbGwgYmUgYXV0b21hdGljYWxseSBhc3NpZ25lZCB0byBpdC4KICAgKi8KICBpZiAocHJpbWFyeV9rZXkuaGFzX3ZhbHVlKCkgJiYKICAgICAgIXN0YXRlbWVudC5Xcml0ZVZhbHVlKEFyY2hpdmVDbGFzc1JlZ2lzdHJhdGlvbjo6a1ByaW1hcnlLZXlJbmRleCwKICAgICAgICAgICAgICAgICAgICAgICAgICAgIHByaW1hcnlfa2V5LnZhbHVlKCkpKSB7CiAgICByZXR1cm4gc3RkOjpudWxsb3B0OwogIH0KCiAgaWYgKCFhcmNoaXZhYmxlLldyaXRlKGl0ZW0pKSB7CiAgICByZXR1cm4gc3RkOjpudWxsb3B0OwogIH0KCiAgaWYgKHN0YXRlbWVudC5FeGVjdXRlKCkgIT0gQXJjaGl2ZVN0YXRlbWVudDo6UmVzdWx0OjprRG9uZSkgewogICAgcmV0dXJuIHN0ZDo6bnVsbG9wdDsKICB9CgogIGludDY0X3QgbGFzdEluc2VydCA9IGRhdGFiYXNlXy0+R2V0TGFzdEluc2VydFJvd0lEKCk7CgogIGlmIChwcmltYXJ5X2tleS5oYXNfdmFsdWUoKSAmJgogICAgICBsYXN0SW5zZXJ0ICE9IHN0YXRpY19jYXN0PGludDY0X3Q+KHByaW1hcnlfa2V5LnZhbHVlKCkpKSB7CiAgICByZXR1cm4gc3RkOjpudWxsb3B0OwogIH0KCiAgLyoKICAgKiAgSWYgYW55IG9mIHRoZSBuZXN0ZWQgY2FsbHMgZmFpbCwgd2Ugd291bGQgaGF2ZSBhbHJlYWR5IGNoZWNrZWQgZm9yIHRoZQogICAqICBmYWlsdXJlIGFuZCByZXR1cm5lZC4KICAgKi8KICB0cmFuc2FjdGlvbi5NYXJrV3JpdGVzQXNSZWFkeUZvckNvbW1pdCgpOwoKICByZXR1cm4gbGFzdEluc2VydDsKfQoKYm9vbCBBcmNoaXZlOjpVbmFyY2hpdmVJbnN0YW5jZShjb25zdCBBcmNoaXZlRGVmJiBkZWZpbml0aW9uLAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFByaW1hcnlLZXkgbmFtZSwKICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBBcmNoaXZhYmxlJiBhcmNoaXZhYmxlKSB7CiAgVW5hcmNoaXZlU3RlcCBzdGVwcGVyID0gWyZhcmNoaXZhYmxlXShBcmNoaXZlTG9jYXRpb24mIGl0ZW0pIHsKICAgIGFyY2hpdmFibGUuUmVhZChpdGVtKTsKICAgIHJldHVybiBmYWxzZSAvKiBuby1tb3JlIGFmdGVyIHNpbmdsZSByZWFkICovOwogIH07CgogIHJldHVybiBVbmFyY2hpdmVJbnN0YW5jZXMoZGVmaW5pdGlvbiwgc3RlcHBlciwgbmFtZSkgPT0gMTsKfQoKc2l6ZV90IEFyY2hpdmU6OlVuYXJjaGl2ZUluc3RhbmNlcyhjb25zdCBBcmNoaXZlRGVmJiBkZWZpbml0aW9uLAogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGNvbnN0IEFyY2hpdmU6OlVuYXJjaGl2ZVN0ZXAmIHN0ZXBwZXIsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgUHJpbWFyeUtleSBwcmltYXJ5X2tleSkgewogIGlmICghSXNWYWxpZCgpKSB7CiAgICByZXR1cm4gMDsKICB9CgogIGNvbnN0IGF1dG8qIHJlZ2lzdHJhdGlvbiA9CiAgICAgIGRhdGFiYXNlXy0+R2V0UmVnaXN0cmF0aW9uRm9yRGVmaW5pdGlvbihkZWZpbml0aW9uKTsKCiAgaWYgKHJlZ2lzdHJhdGlvbiA9PSBudWxscHRyKSB7CiAgICByZXR1cm4gMDsKICB9CgogIGNvbnN0IGJvb2wgaXNRdWVyeWluZ1NpbmdsZSA9IHByaW1hcnlfa2V5Lmhhc192YWx1ZSgpOwoKICBhdXRvIHN0YXRlbWVudCA9IHJlZ2lzdHJhdGlvbi0+Q3JlYXRlUXVlcnlTdGF0ZW1lbnQoaXNRdWVyeWluZ1NpbmdsZSk7CgogIGlmICghc3RhdGVtZW50LklzVmFsaWQoKSB8fCAhc3RhdGVtZW50LlJlc2V0KCkpIHsKICAgIHJldHVybiAwOwogIH0KCiAgaWYgKGlzUXVlcnlpbmdTaW5nbGUpIHsKICAgIC8qCiAgICAgKiAgSWYgYSBzaW5nbGUgc3RhdGVtZW50IGlzIGJlaW5nIHF1ZXJpZWQgZm9yLCBiaW5kIHRoZSBwcmltYXJ5IGtleSBhcyBhCiAgICAgKiBzdGF0ZW1lbnQgYXJndW1lbnQuCiAgICAgKi8KICAgIGlmICghc3RhdGVtZW50LldyaXRl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