1 files changed, 51 insertions, 0 deletions

diff --git a/src/regress/lib/libcrypto/test/test_util.c b/src/regress/lib/libcrypto/test/test_util.c
new file mode 100644
index 0000000000..6ecb574788
--- /dev/null
+++ b/src/regress/lib/libcrypto/test/test_util.c
@@ -0,0 +1,51 @@
+/*      $OpenBSD: test_util.c,v 1.1 2025/05/21 08:57:13 joshua Exp $ */
+/*
+ * Copyright (c) 2017 Joel Sing <jsing@openbsd.org>
+ * Copyright (c) 2024 Theo Buehler <tb@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "test.h"
+
+void
+test_hexdump(struct test *t, const unsigned char *buf, size_t len)
+{
+        size_t i;
+
+        for (i = 1; i <= len; i++)
+                test_printf(t, " 0x%02x,%s", buf[i - 1], i % 8 ? "" : "\n");
+
+        if ((len % 8) != 0)
+                test_printf(t, "\n");
+}
+
+void
+test_hexdiff(struct test *t, const uint8_t *buf, size_t len, const uint8_t *compare)
+{
+        const char *mark = "", *newline;
+        size_t i;
+
+        for (i = 1; i <= len; i++) {
+                if (compare != NULL)
+                        mark = (buf[i - 1] != compare[i - 1]) ? "*" : " ";
+                newline = i % 8 ? "" : "\n";
+                test_printf(t, " %s0x%02x,%s", mark, buf[i - 1], newline);
+        }
+
+        if ((len % 8) != 0)
+                test_printf(t, "\n");
+}