tests/HttpTest: Fix build on x86_gcc2

* std::istreambuf_iterator<T> template isn't available until C++11.
* std::vector<T>::cbegin() is not available
* Add missing include of errno.h

Change-Id: Ice344f6b0f93bf72d9120674607878c4c3e8ef54
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2515
Reviewed-by: waddlesplash <[email protected]>

src/tests/kits/net/service/HttpTest.cpp

@@ -318,11 +318,18 @@ HttpTest::UploadTest()
 	// the server received it.
 	std::string fileContents;
 	{
-		std::ifstream inputStream(testFilePath);
+		std::ifstream inputStream(
-		CPPUNIT_ASSERT(inputStream.is_open());
+			testFilePath.c_str(),
-		fileContents = std::string(
+			std::ios::in | std::ios::binary);
-			std::istreambuf_iterator<char>(inputStream),
+		CPPUNIT_ASSERT(inputStream);
-			std::istreambuf_iterator<char>());
+
+		inputStream.seekg(0, std::ios::end);
+		fileContents.resize(inputStream.tellg());
+
+		inputStream.seekg(0, std::ios::beg);
+		inputStream.read(&fileContents[0], fileContents.size());
+		inputStream.close();
+
 		CPPUNIT_ASSERT(!fileContents.empty());
 	}
 

src/tests/kits/net/service/TestServer.cpp

@@ -7,6 +7,7 @@
  */
 #include "TestServer.h"
 
+#include <errno.h>
 #include <netinet/in.h>
 #include <posix/libgen.h>
 #include <sstream>
@@ -208,7 +209,7 @@ status_t ChildProcess::Start(const std::vector<std::string>& args)
 	// If we reach this point we failed to load the Python image.
 	std::ostringstream ostr;
 
-	for (std::vector<std::string>::const_iterator iter = args.cbegin();
+	for (std::vector<std::string>::const_iterator iter = args.begin();
 		 iter != args.end();
 		 ++iter) {
 		ostr << " " << *iter;