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Re: an old fstatat bug


From: Paul Eggert
Subject: Re: an old fstatat bug
Date: Thu, 13 May 2021 12:36:34 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1


+This function does not fail when the second argument is an empty string
+on some platforms:
+glibc 2.7.

If AT_EMPTY_PATH is specified, fstatat is documented to behave that way with an empty string. So possibly this behavior is also kernel-dependent (AT_EMPTY_PATH was introduced in Linux 2.6.39, maybe the kernels are buggy before that?). Not sure whether this is all worth mentioning.



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