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From: "ebb9 at byu dot net" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sources.redhat.com Subject: [Bug libc/10609] New: openat (and *at friends) fail to detect ENOENT Date: Sat, 05 Sep 2009 16:26:00 -0000 [thread overview] Message-ID: <20090905162604.10609.ebb9@byu.net> (raw) On older kernels, when __have_atfcts is false, the /proc/self/fd/%d/%s fallback is used unconditionally, even when %s is the empty string. This ends up opening fd (for openat), a successful stat of fd (for fstatat), etc, instead of failing with ENOENT. #include <fcntl.h> int main() { int fd = open (".", O_RDONLY); if (openat (fd, "", O_RDONLY) != -1 || errno != ENOENT) puts ("failed"); return 0; } -- Summary: openat (and *at friends) fail to detect ENOENT Product: glibc Version: 2.10 Status: NEW Severity: normal Priority: P2 Component: libc AssignedTo: drepper at redhat dot com ReportedBy: ebb9 at byu dot net CC: glibc-bugs at sources dot redhat dot com http://sourceware.org/bugzilla/show_bug.cgi?id=10609 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is.
next reply other threads:[~2009-09-05 16:26 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2009-09-05 16:26 ebb9 at byu dot net [this message] 2009-09-05 16:43 ` [Bug libc/10609] " ebb9 at byu dot net 2009-10-30 4:34 ` drepper at redhat dot com
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