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Test mkdirat use of mode argument

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The test io/tst-mkdirat doesn't verify the permissions on the created
directory (thus, doesn't verify at all anything about how mkdirat uses
the mode argument).  Add checks of this to the existing test.

Tested for x86_64.
This commit is contained in:
Joseph Myers 2024-08-22 11:25:14 +00:00
parent 7f04bb4e49
commit 55cd51d971
1 changed files with 42 additions and 0 deletions
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42
io/tst-mkdirat.c
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@ -53,6 +53,10 @@ prepare (void)
static int static int
do_test (void) do_test (void)
{ {
/* Find the current umask. */
mode_t mask = umask (022);
umask (mask);
/* fdopendir takes over the descriptor, make a copy. */ /* fdopendir takes over the descriptor, make a copy. */
int dupfd = dup (dir_fd); int dupfd = dup (dir_fd);
if (dupfd == -1) if (dupfd == -1)
@ -107,6 +111,13 @@ do_test (void)
puts ("mkdirat did not create a directory"); puts ("mkdirat did not create a directory");
return 1; return 1;
} }
if ((st1.st_mode & 01777) != (~mask & 0777))
{
printf ("mkdirat created directory with wrong mode %o, expected %o\n",
(unsigned int) (st1.st_mode & 01777),
(unsigned int) (~mask & 0777));
return 1;
}
dupfd = dup (dir_fd); dupfd = dup (dir_fd);
if (dupfd == -1) if (dupfd == -1)
@ -156,6 +167,37 @@ do_test (void)
return 1; return 1;
} }
/* Test again with a different mode. */
umask (0);
e = mkdirat (dir_fd, "some-dir", 01755);
umask (mask);
if (e == -1)
{
puts ("directory creation (different mode) failed");
return 1;
}
if (fstatat64 (dir_fd, "some-dir", &st1, 0) != 0)
{
puts ("fstat64 (different mode) failed");
return 1;
}
if (!S_ISDIR (st1.st_mode))
{
puts ("mkdirat (different mode) did not create a directory");
return 1;
}
if ((st1.st_mode & 01777) != 01755)
{
printf ("mkdirat (different mode) created directory with wrong mode %o\n",
(unsigned int) (st1.st_mode & 01777));
return 1;
}
if (unlinkat (dir_fd, "some-dir", AT_REMOVEDIR) != 0)
{
puts ("unlinkat (different mode) failed");
return 1;
}
close (dir_fd); close (dir_fd);
return 0; return 0;