Detecting and Fixing Violations of Modification Terms in Open Source Licenses during Forking

• URL: http://arxiv.org/abs/2310.07991v1
• Date: Thu, 12 Oct 2023 02:37:06 GMT
• Title: Detecting and Fixing Violations of Modification Terms in Open Source Licenses during Forking
• Authors: Kaifeng Huang, Yingfeng Xia, Bihuan Chen, Zhuotong Zhou, Jin Guo, Xin Peng
• Abstract summary: We first empirically characterize modification terms in 47 open source licenses. Inspired by our study, we then design LiVo to automatically detect and fix violations of modification terms in open source licenses during forking.
• Score: 4.682961105225832
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Open source software brings benefit to software community, but also introduces legal risks caused by license violations, which result in serious consequences such as lawsuits and financial losses. To mitigate legal risks, some approaches have been proposed to identify licenses, detect license incompatibilities and inconsistencies, and recommend licenses. As far as we know, however, there is no prior work to understand modification terms in open source licenses or to detect and fix violations of modification terms. To bridge this gap, we first empirically characterize modification terms in 47 open source licenses. These licenses all require certain forms of "notice" to describe the modifications made to the original work. Inspired by our study, we then design LiVo to automatically detect and fix violations of modification terms in open source licenses during forking. Our evaluation has shown the effectiveness and efficiency of LiVo. 18 pull requests of fixing modification term violations have received positive responses. 8 have been merged.

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