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-rw-r--r--stdlib/tst-getrandom-errno.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/stdlib/tst-getrandom-errno.c b/stdlib/tst-getrandom-errno.c
new file mode 100644
index 0000000..3ec9775
--- /dev/null
+++ b/stdlib/tst-getrandom-errno.c
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+/* Test errno handling in getrandom (bug 32440).
+ Copyright (C) 2024-2025 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <support/check.h>
+#include <sys/random.h>
+
+static
+int do_test (void)
+{
+ errno = -1181968554; /* Just a random value. */
+ char buf[4];
+ int ret = getrandom (buf, sizeof (buf), -1); /* All flags set. */
+ if (errno != ENOSYS)
+ TEST_COMPARE (errno, EINVAL);
+ TEST_COMPARE (ret, -1);
+
+ return 0;
+}
+
+#include <support/test-driver.c>