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common: Never remove /dev/null.

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* common/sysutils.c (gnupg_remove): Detect /dev/null.
--

GnuPG-bug-id: 6556
(cherry picked from commit 7f9e05d73f2ca1ecde1b7ba406d139a19d007998)
This commit is contained in:
Werner Koch 2023-09-07 17:21:05 +02:00
parent 6d45fcdd3c
commit 8d01725a96
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GPG Key ID: E3FDFF218E45B72B
1 changed files with 6 additions and 1 deletions
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7
common/sysutils.c
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@ -812,7 +812,12 @@ gnupg_remove (const char *fname)
return -1;
return 0;
#else
return remove (fname);
/* It is common to use /dev/null for testing. We better don't
* remove that file. */
if (fname && !strcmp (fname, "/dev/null"))
return 0;
else
return remove (fname);
#endif
}