Add platform setup and teardown support

Add platform setup and teardown for authcrypt,
benchmark, hashing and tls-client examples.

Author: Andrzej Kurek

authcrypt/main.cpp

@@ -24,6 +24,11 @@
 #include "mbedtls/platform.h"
 
 int main() {
+    mbedtls_platform_context platform_ctx;
+    if(mbedtls_platform_setup(&platform_ctx)) {
+        return -1;
+    }
+
     int exit_code = MBEDTLS_EXIT_SUCCESS;
     Authcrypt *authcrypt = new Authcrypt();
 
@@ -34,5 +39,6 @@ int main() {
 
     delete authcrypt;
 
+    mbedtls_platform_teardown(&platform_ctx);
     return exit_code;
 }

benchmark/main.cpp

@@ -961,8 +961,14 @@ static int benchmark( int argc, char *argv[] )
 }
 
 int main(void) {
+    mbedtls_platform_context platform_ctx;
+    if(mbedtls_platform_setup(&platform_ctx)) {
+        return -1;
+    }
+
     int ret = benchmark(0, NULL);
     if (ret != 0) {
         mbedtls_printf("Benchmark failed with error %d\r\n", ret);
     }
+    mbedtls_platform_teardown(&platform_ctx);
 }

hashing/main.cpp

@@ -152,8 +152,14 @@ static int example(void)
 }
 
 int main() {
+    mbedtls_platform_context platform_ctx;
+    if( mbedtls_platform_setup(&platform_ctx)) {
+        return -1;
+    }
+
     int ret = example();
     if (ret != 0) {
         mbedtls_printf("Example failed with error %d\r\n", ret);
     }
+    mbedtls_platform_teardown(&platform_ctx);
 }

tls-client/main.cpp

@@ -49,6 +49,10 @@ const int SERVER_PORT = 443;
  */
 int main()
 {
+    mbedtls_platform_context platform_ctx;
+    if( mbedtls_platform_setup(&platform_ctx)) {
+        return -1;
+    }
     /*
      * The default 9600 bps is too slow to print full TLS debug info and could
      * cause the other party to time out.
@@ -71,6 +75,7 @@ int main()
     if (client == NULL) {
         mbedtls_printf("Failed to allocate HelloHttpsClient object\n"
                        "\nFAIL\n");
+        mbedtls_platform_teardown(&platform_ctx);
         return exit_code;
     }
 
@@ -84,5 +89,6 @@ int main()
 
     delete client;
 
+    mbedtls_platform_teardown(&platform_ctx);
     return exit_code;
 }