checkpoint: create checkpoint file with 0600 instead of 0644#44
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acts-1631 wants to merge 1 commit into
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checkpoint: create checkpoint file with 0600 instead of 0644#44acts-1631 wants to merge 1 commit into
acts-1631 wants to merge 1 commit into
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checkpoint_save() opened the checkpoint file with group and other read permissions. The checkpoint file contains the source and destination paths of files being transferred, which can leak information to other local users on shared systems. Restrict the mode to owner read/write only, since the file only needs to be read back by the same user during a -R resume.
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checkpoint_save() opens the checkpoint file with group and other read permissions (0644). The checkpoint file stores the source and destination paths of files being transferred, so on a shared system other local users can read it and learn what files someone is copying. There's no reason for anyone but the owner to read this file, so restrict it to 0600.