From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 991C03857826; Wed, 9 Sep 2020 12:44:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 991C03857826 From: "jakub at redhat dot com" To: glibc-bugs@sourceware.org Subject: [Bug libc/15813] Multiple issues in __gen_tempname Date: Wed, 09 Sep 2020 12:44:56 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: glibc X-Bugzilla-Component: libc X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: jakub at redhat dot com X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: adhemerval.zanella at linaro dot org X-Bugzilla-Target-Milestone: 2.31 X-Bugzilla-Flags: security? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: glibc-bugs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-bugs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Sep 2020 12:44:56 -0000 https://sourceware.org/bugzilla/show_bug.cgi?id=3D15813 --- Comment #9 from Jakub Jelinek --- The non-_LIBC fallback is actually worse (gettimeofday with usec precision). Anyway, I think the usec timer with pid is just fine for the first attempt,= so reading from /dev/urandom or using similar syscall is I think a waste of ti= me for the common case, it is just in the unlikely case that the file exists t= hat perhaps something more expensive is needed. --=20 You are receiving this mail because: You are on the CC list for the bug.=