forked from rpms/glibc
45 lines
1.2 KiB
Diff
45 lines
1.2 KiB
Diff
commit 3844cdc33093dbe1e33ddb831eada9bdb4a482b9
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Fri Aug 30 22:07:12 2024 +0200
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io: Fix destructive nature of tst-fchmod-errors
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We must not change the permissions of /dev/null if running
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as root.
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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diff --git a/io/tst-fchmod-errors.c b/io/tst-fchmod-errors.c
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index ee15300fc3edf6f0..bf2a4c568e33aeaa 100644
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--- a/io/tst-fchmod-errors.c
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+++ b/io/tst-fchmod-errors.c
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@@ -18,8 +18,10 @@
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#include <errno.h>
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#include <fcntl.h>
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+#include <stdio.h>
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#include <support/check.h>
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#include <support/xunistd.h>
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+#include <unistd.h>
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static int
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do_test (void)
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@@ -27,9 +29,14 @@ do_test (void)
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{
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/* Permissions on /dev/null (the opened descriptor) cannot be changed. */
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int fd = xopen ("/dev/null", O_RDWR, 0);
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- errno = 0;
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- TEST_COMPARE (fchmod (fd, 0), -1);
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- TEST_COMPARE (errno, EPERM);
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+ if (getuid () == 0)
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+ puts ("info: /dev/null fchmod test skipped because of root privileges");
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+ else
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+ {
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+ errno = 0;
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+ TEST_COMPARE (fchmod (fd, 0), -1);
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+ TEST_COMPARE (errno, EPERM);
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+ }
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xclose (fd);
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/* Now testing an invalid file descriptor. */
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