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bug#57567: ‘primitive-load’ should open files with O_CLOEXEC

From: Ludovic Courtès
Subject: bug#57567: ‘primitive-load’ should open files with O_CLOEXEC
Date: Wed, 07 Sep 2022 18:03:16 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux)

Ludovic Courtès <ludo@gnu.org> skribis:

> Currently ‘primitive-load’ opens files without O_CLOEXEC:
>     port = scm_open_file_with_encoding (filename,
>                                         scm_from_latin1_string ("r"),
>                                         SCM_BOOL_T, /* guess_encoding */
>                                         scm_from_latin1_string ("UTF-8"));


> For a proper fix, one possibility would be to first augment
> ‘scm_i_mode_to_open_flags’ to recognize some letter for O_CLOEXEC.  In
> glibc, fopen(3) uses “e” for that.

I went ahead and did that:

  0aa1a9976 'primitive-load' opens files with O_CLOEXEC.
  a356ceebe Add support for "e" flag (O_CLOEXEC) to 'open-file'.


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