Add unit test for PEM_FLAG_ONLY_B64

Get some trivial test coverage that this flag does what it claims to.

[extended tests]

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/1700)

1 files changed, 76 insertions, 0 deletions

diff --git a/test/pemtest.c b/test/pemtest.c
new file mode 100644
index 0000000000..c573278c7e
--- /dev/null
+++ b/test/pemtest.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <string.h>
+#include <openssl/bio.h>
+#include <openssl/pem.h>
+
+#include "testutil.h"
+
+static const char raw[] = "hello world";
+static const char encoded[] = "aGVsbG8gd29ybGQ=";
+static const char pemtype[] = "PEMTESTDATA";
+
+static int test_b64(void)
+{
+    BIO *b = BIO_new(BIO_s_mem());
+    char *name = NULL, *header = NULL;
+    unsigned char *data = NULL;
+    long len;
+    int ret = 0;
+
+    if (!TEST_ptr(b)
+        || !TEST_true(BIO_printf(b, "-----BEGIN %s-----\n", pemtype))
+        || !TEST_true(BIO_printf(b, "%s\n", encoded))
+        || !TEST_true(BIO_printf(b, "-----END %s-----\n", pemtype))
+        || !TEST_true(PEM_read_bio_ex(b, &name, &header, &data, &len,
+                                      PEM_FLAG_ONLY_B64)))
+        goto err;
+    if (!TEST_int_eq(memcmp(pemtype, name, sizeof(pemtype) - 1), 0)
+        || !TEST_int_eq(len,sizeof(raw) - 1)
+        || !TEST_int_eq(memcmp(data, raw, sizeof(raw) - 1), 0))
+        goto err;
+    ret = 1;
+ err:
+    BIO_free(b);
+    OPENSSL_free(name);
+    OPENSSL_free(header);
+    OPENSSL_free(data);
+    return ret;
+}
+
+static int test_invalid(void)
+{
+    BIO *b = BIO_new(BIO_s_mem());
+    char *name = NULL, *header = NULL;
+    unsigned char *data = NULL;
+    long len;
+
+    if (!TEST_ptr(b)
+        || !TEST_true(BIO_printf(b, "-----BEGIN %s-----\n", pemtype))
+        || !TEST_true(BIO_printf(b, "%c%s\n", '\t', encoded))
+        || !TEST_true(BIO_printf(b, "-----END %s-----\n", pemtype))
+        /* Expected to fail due to non-base64 character */
+        || TEST_true(PEM_read_bio_ex(b, &name, &header, &data, &len,
+                                     PEM_FLAG_ONLY_B64))) {
+        BIO_free(b);
+        return 0;
+    }
+    BIO_free(b);
+    OPENSSL_free(name);
+    OPENSSL_free(header);
+    OPENSSL_free(data);
+    return 1;
+}
+
+void register_tests(void)
+{
+    ADD_TEST(test_b64);
+    ADD_TEST(test_invalid);
+}