1 files changed, 62 insertions, 0 deletions
diff --git a/security/nss/cmd/tests/encodeinttest.c b/security/nss/cmd/tests/encodeinttest.c
new file mode 100644
index 0000000000..f0062ea5e4
--- /dev/null
+++ b/security/nss/cmd/tests/encodeinttest.c
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+
+#include "secasn1.h"
+
+struct TestCase {
+    long value;
+    unsigned char data[5];
+    unsigned int len;
+};
+
+static struct TestCase testCase[] = {
+/* XXX NSS doesn't generate the shortest encoding for negative values. */
+#if 0
+    { -128, { 0x80 }, 1 },
+    { -129, { 0xFF, 0x7F }, 2 },
+#endif
+
+    { 0, { 0x00 }, 1 },
+    { 127, { 0x7F }, 1 },
+    { 128, { 0x00, 0x80 }, 2 },
+    { 256, { 0x01, 0x00 }, 2 },
+    { 32768, { 0x00, 0x80, 0x00 }, 3 }
+};
+
+int
+main()
+{
+    PRBool failed = PR_FALSE;
+    unsigned int i;
+    unsigned int j;
+
+    for (i = 0; i < sizeof(testCase) / sizeof(testCase[0]); i++) {
+        SECItem encoded;
+        if (SEC_ASN1EncodeInteger(NULL, &encoded, testCase[i].value) == NULL) {
+            fprintf(stderr, "SEC_ASN1EncodeInteger failed\n");
+            failed = PR_TRUE;
+            continue;
+        }
+        if (encoded.len != testCase[i].len ||
+            memcmp(encoded.data, testCase[i].data, encoded.len) != 0) {
+            fprintf(stderr, "Encoding of %ld is incorrect:",
+                    testCase[i].value);
+            for (j = 0; j < encoded.len; j++) {
+                fprintf(stderr, " 0x%02X", (unsigned int)encoded.data[j]);
+            }
+            fputs("\n", stderr);
+            failed = PR_TRUE;
+        }
+        PORT_Free(encoded.data);
+    }
+
+    if (failed) {
+        fprintf(stderr, "FAIL\n");
+        return 1;
+    }
+    printf("PASS\n");
+    return 0;
+}