Add script spawn minio server to test the URLs against it

.gitignore

@@ -1,2 +1,3 @@
 test
 test.exe
+minio

Makefile

@@ -1,4 +1,4 @@
-ifeq ($(shell uname -a),Linux)
+ifeq ($(shell uname -s),Linux)
 	LFLAGS = -lcrypto
 else
 	LFLAGS = -lbcrypt

s3.c

@@ -241,6 +241,8 @@ static int inplace_hmac(char *buf, int len1, int len2)
     BCryptCloseAlgorithmProvider(alg, 0);
     return 0;
 #else
+    int olen = hmac_len(buf, len1, len2);
+
     EVP_MAC *mac = EVP_MAC_fetch(NULL, "HMAC", NULL);
     if (mac == NULL) {
         return -1;

test.c

@@ -10,11 +10,11 @@ int main(void)
         S3_S("GET"),
         3600,
         S3_S(""),
-        S3_S("accesskey"),
-        S3_S("secretkey"),
+        S3_S("minioadmin"),
+        S3_S("minioadmin"),
         S3_S("us-west-1"),
         S3_S("s3"),
-        S3_S("aws.com"),
+        S3_S("172.17.0.2:9000"),
         time(NULL),
         dst, sizeof(dst));
     if (len < 0) {

test.sh

@@ -0,0 +1 @@
+docker run -p 9000:9000 -e MINIO_ROOT_USER=minioadmin -e MINIO_ROOT_PASSWORD=minioadmin minio/minio server /data