GNU bug report logs - #71980
[3.0.10] posix.test uses depcrecated tmpnam

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Message #8 received at 71980 <at> debbugs.gnu.org (full text, mbox):

From: Tomas Volf <~@wolfsden.cz>
To: Matt Wette <matt.wette <at> gmail.com>
Cc: 71980 <at> debbugs.gnu.org
Subject: Re: bug#71980: [3.0.10] posix.test uses depcrecated tmpnam
Date: Sun, 7 Jul 2024 18:46:40 +0200

[Message part 1 (text/plain, inline)]

On 2024-07-07 09:27:14 -0700, Matt Wette wrote:
> With `--disable-tmpnam'  argument to configure, posix.test fails: missing
> `tmpnam`.
>
> patch attached

There also is #71796 as a possible patch (since June 27th), which is arguably
bit smaller (albeit I am biased since I am the author over there ^_^ ).

>
> --- test-suite/tests/posix.test-orig    2024-07-03 15:45:16.352132881 -0700
> +++ test-suite/tests/posix.test    2024-07-07 09:21:53.342855356 -0700
> @@ -361,20 +361,21 @@
>        (status:exit-val (system* "something-that-does-not-exist"))))
>
>    (pass-if-equal "https://bugs.gnu.org/52835"
> -      "bong\n"
> -    (let ((file (tmpnam)))
> +    "bong\n"
> +    (let ((port (mkstemp "T-XXXXXX")))
>        ;; Redirect stdout and stderr to FILE.
>        (define status
> -        (call-with-output-file file
> -          (lambda (port)
> -            (with-output-to-port port
> +        (with-output-to-port port
> +          (lambda ()
> +            (with-error-to-port port
>                (lambda ()
> -                (with-error-to-port port
> -                  (lambda ()
> -                    (system* "sh" "-c" "echo bong >&2"))))))))
> +                (system* "sh" "-c" "echo bong >&2"))))))
>
>        (and (zero? (status:exit-val status))
> -           (call-with-input-file file get-string-all))))
> +           (zero? (seek port 0 SEEK_SET))
> +           (let ((contents (get-string-all port)))
> +             (close-port port)
> +             contents))))

Interesting.  Does this clean up the temporary file somehow or will it stay
around?

>
>    (pass-if-equal "https://bugs.gnu.org/63024"
>        0

> --- test-suite/tests/posix.test-orig	2024-07-03 15:45:16.352132881 -0700
> +++ test-suite/tests/posix.test	2024-07-07 09:21:53.342855356 -0700
> @@ -361,20 +361,21 @@
>        (status:exit-val (system* "something-that-does-not-exist"))))
>
>    (pass-if-equal "https://bugs.gnu.org/52835"
> -      "bong\n"
> -    (let ((file (tmpnam)))
> +    "bong\n"
> +    (let ((port (mkstemp "T-XXXXXX")))
>        ;; Redirect stdout and stderr to FILE.
>        (define status
> -        (call-with-output-file file
> -          (lambda (port)
> -            (with-output-to-port port
> +        (with-output-to-port port
> +          (lambda ()
> +            (with-error-to-port port
>                (lambda ()
> -                (with-error-to-port port
> -                  (lambda ()
> -                    (system* "sh" "-c" "echo bong >&2"))))))))
> +                (system* "sh" "-c" "echo bong >&2"))))))
>
>        (and (zero? (status:exit-val status))
> -           (call-with-input-file file get-string-all))))
> +           (zero? (seek port 0 SEEK_SET))
> +           (let ((contents (get-string-all port)))
> +             (close-port port)
> +             contents))))
>
>    (pass-if-equal "https://bugs.gnu.org/63024"
>        0

Have a nice day,
Tomas Volf

--
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.

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