diff --git a/ap/lib/libssl/openssl-1.1.1o/test/x509aux.c b/ap/lib/libssl/openssl-1.1.1o/test/x509aux.c
new file mode 100644
index 0000000..dee1b40
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/test/x509aux.c
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL licenses, (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * https://www.openssl.org/source/license.html
+ * or in the file LICENSE in the source distribution.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+#include <openssl/conf.h>
+#include <openssl/err.h>
+#include "internal/nelem.h"
+#include "testutil.h"
+
+static int test_certs(int num)
+{
+    int c;
+    char *name = 0;
+    char *header = 0;
+    unsigned char *data = 0;
+    long len;
+    typedef X509 *(*d2i_X509_t)(X509 **, const unsigned char **, long);
+    typedef int (*i2d_X509_t)(X509 *, unsigned char **);
+    int err = 0;
+    BIO *fp = BIO_new_file(test_get_argument(num), "r");
+
+    if (!TEST_ptr(fp))
+        return 0;
+
+    for (c = 0; !err && PEM_read_bio(fp, &name, &header, &data, &len); ++c) {
+        const int trusted = (strcmp(name, PEM_STRING_X509_TRUSTED) == 0);
+        d2i_X509_t d2i = trusted ? d2i_X509_AUX : d2i_X509;
+        i2d_X509_t i2d = trusted ? i2d_X509_AUX : i2d_X509;
+        X509 *cert = NULL;
+        X509 *reuse = NULL;
+        const unsigned char *p = data;
+        unsigned char *buf = NULL;
+        unsigned char *bufp;
+        long enclen;
+
+        if (!trusted
+            && strcmp(name, PEM_STRING_X509) != 0
+            && strcmp(name, PEM_STRING_X509_OLD) != 0) {
+            TEST_error("unexpected PEM object: %s", name);
+            err = 1;
+            goto next;
+        }
+        cert = d2i(NULL, &p, len);
+
+        if (cert == NULL || (p - data) != len) {
+            TEST_error("error parsing input %s", name);
+            err = 1;
+            goto next;
+        }
+
+        /* Test traditional 2-pass encoding into caller allocated buffer */
+        enclen = i2d(cert, NULL);
+        if (len != enclen) {
+            TEST_error("encoded length %ld of %s != input length %ld",
+                       enclen, name, len);
+            err = 1;
+            goto next;
+        }
+        if ((buf = bufp = OPENSSL_malloc(len)) == NULL) {
+            TEST_perror("malloc");
+            err = 1;
+            goto next;
+        }
+        enclen = i2d(cert, &bufp);
+        if (len != enclen) {
+            TEST_error("encoded length %ld of %s != input length %ld",
+                       enclen, name, len);
+            err = 1;
+            goto next;
+        }
+        enclen = (long) (bufp - buf);
+        if (enclen != len) {
+            TEST_error("unexpected buffer position after encoding %s", name);
+            err = 1;
+            goto next;
+        }
+        if (memcmp(buf, data, len) != 0) {
+            TEST_error("encoded content of %s does not match input", name);
+            err = 1;
+            goto next;
+        }
+        p = buf;
+        reuse = d2i(NULL, &p, enclen);
+        if (reuse == NULL) {
+            TEST_error("second d2i call failed for %s", name);
+            err = 1;
+            goto next;
+        }
+        err = X509_cmp(reuse, cert);
+        if (err != 0) {
+            TEST_error("X509_cmp for %s resulted in %d", name, err);
+            err = 1;
+            goto next;
+        }
+        OPENSSL_free(buf);
+        buf = NULL;
+
+        /* Test 1-pass encoding into library allocated buffer */
+        enclen = i2d(cert, &buf);
+        if (len != enclen) {
+            TEST_error("encoded length %ld of %s != input length %ld",
+                       enclen, name, len);
+            err = 1;
+            goto next;
+        }
+        if (memcmp(buf, data, len) != 0) {
+            TEST_error("encoded content of %s does not match input", name);
+            err = 1;
+            goto next;
+        }
+
+        if (trusted) {
+            /* Encode just the cert and compare with initial encoding */
+            OPENSSL_free(buf);
+            buf = NULL;
+
+            /* Test 1-pass encoding into library allocated buffer */
+            enclen = i2d(cert, &buf);
+            if (enclen > len) {
+                TEST_error("encoded length %ld of %s > input length %ld",
+                           enclen, name, len);
+                err = 1;
+                goto next;
+            }
+            if (memcmp(buf, data, enclen) != 0) {
+                TEST_error("encoded cert content does not match input");
+                err = 1;
+                goto next;
+            }
+        }
+
+        /*
+         * If any of these were null, PEM_read() would have failed.
+         */
+    next:
+        X509_free(cert);
+        X509_free(reuse);
+        OPENSSL_free(buf);
+        OPENSSL_free(name);
+        OPENSSL_free(header);
+        OPENSSL_free(data);
+    }
+    BIO_free(fp);
+
+    if (ERR_GET_REASON(ERR_peek_last_error()) == PEM_R_NO_START_LINE) {
+        /* Reached end of PEM file */
+        if (c > 0) {
+            ERR_clear_error();
+            return 1;
+        }
+    }
+
+    /* Some other PEM read error */
+    return 0;
+}
+
+int setup_tests(void)
+{
+    size_t n = test_get_argument_count();
+
+    if (n == 0) {
+        TEST_error("usage: %s certfile...", test_get_program_name());
+        return 0;
+    }
+
+    ADD_ALL_TESTS(test_certs, (int)n);
+    return 1;
+}