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Sun, 11 Dec 2022 10:52:55 -0800 (PST) MIME-Version: 1.0 References: <20221209141047.oyv3jsdvo5s3z6m6@chazelas.org> <20221210113813.GX27622@tarpaulin.shahaf.local2> <20221211183546.ogwicuctgxbtit6w@chazelas.org> In-Reply-To: <20221211183546.ogwicuctgxbtit6w@chazelas.org> From: Bart Schaefer Date: Sun, 11 Dec 2022 10:52:44 -0800 Message-ID: Subject: Re: xtrace output sets ERRNO to 9 (EBADF) To: Daniel Shahaf , zsh-workers@zsh.org Content-Type: text/plain; charset="UTF-8" X-Seq: 51188 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: , List-Subscribe: , List-Unsubscribe: , List-Post: List-Owner: List-Archive: On Sun, Dec 11, 2022 at 10:36 AM Stephane Chazelas wrote: > > > This ignores any errors from the fileno() and fclose() calls as well, though? > > Yes, though it's probably just as well. Users use $ERRNO to > detect errors while doing operations they asked for. Exactly; xtrace shouldn't be affecting program errors. In any case, fileno() doesn't set errno (it's just a data structure deref, would only fail by crashing) and zclose() already clobbers the error from fclose().