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Make test/libc/calls/pledge_test.c work with "nonstandard" umask (#956)

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The test was failing if the process's umask happened to be
0077, for example.  The file `foo` was then created with a
file mode of 0100600, rather than the expected 0100644.
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tkchia 2023-11-16 16:47:21 +08:00 • committed by GitHub
parent e05933c641
commit 665747a319
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test/libc/calls/pledge_test.c
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@ -493,10 +493,12 @@ TEST(pledge, open_cpath) {
ASSERT_SYS(0, 0, touch("foo", 0644));
ASSERT_NE(-1, (pid = fork()));
if (!pid) {
unsigned omask = umask(022);
ASSERT_SYS(0, 0, pledge("stdio cpath", 0));
ASSERT_SYS(0, 3, open("foo", O_WRONLY | O_TRUNC | O_CREAT, 0644));
ASSERT_SYS(0, 0, fstat(3, &st));
ASSERT_EQ(0100644, st.st_mode);
umask(omask);
// make sure open() can't apply the setuid bit
ASSERT_SYS(EPERM, -1, open("bar", O_WRONLY | O_TRUNC | O_CREAT, 04644));
_Exit(0);