Emc IP Holding Company LLC

Ca, Inc.

Friar Yangfeng Chen

Wei Qi

Xin Zhong

Zhiye Wang

Pengcheng Dun

Wenxuan Yin

Embodiments of the present disclosure relate to a method and apparatus for incremental backup. The method comprises receiving a set of file paths to be backed up and parsing each file path in the set of file paths to construct a prefix tree. The method further comprises traversing the prefix tree to read an ordered set of file paths in the prefix tree and performing an incremental backup sequentially according to the ordered set of file paths. Embodiments of the present disclosure sort a set of file paths to be backed up using a prefix tree that shares common path prefixes. Thus, embodiments of the present disclosure can achieve fast sort of the set of file paths, and can effectively save storage space needed for sorting a considerable number of file paths in the memory, thereby reducing the times of comparing file names when sorting file paths.

Method and apparatus for incremental backup based on file paths and a prefix tree

A system and method for testing a computer program using a computer system includes a plurality of computer systems communicating using a network. An interface parser module defines at least one program interface in a program file of a specified program. A fuzzer module reads the program file and identifies the program interfaces. An attack data generator module attacks the program interfaces and communicates with the fuzzer, and the fuzzer determines vulnerabilities in the specified program. A recorder records the attacking procedure. A verifier verifies remedies for vulnerabilities by replaying the attacking procedure of the program interface and determining vulnerabilities. A service status detective module restarts the specified program when the specified program ceases to operate or crashes.

Remote procedure call (RPC) services fuzz attacking tool

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Beijing, China

Friar Yangfeng Chen