CLOUD: Fix "-Wcast-qual"

The passed buffer is not changed, so could be `const`.

You might see that `postFields.c_str()` is `buffer`. Yet, as it's
`postFields`, it's used for POST in curl_easy_setopt(), which copies the
passed buffer. When `buffer` is used for upload, it's an actual bytes
buffer, kept in CurlRequest.

2 files changed, 6 insertions, 6 deletions

diff --git a/backends/networking/curl/networkreadstream.cpp b/backends/networking/curl/networkreadstream.cpp
index d761cbb5aa..5c3730645b 100644
--- a/backends/networking/curl/networkreadstream.cpp
+++ b/backends/networking/curl/networkreadstream.cpp
@@ -47,7 +47,7 @@ static size_t curlHeadersCallback(char *d, size_t n, size_t l, void *p) {
 	return 0;
 }
 
-void NetworkReadStream::init(const char *url, curl_slist *headersList, byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post) {
+void NetworkReadStream::init(const char *url, curl_slist *headersList, const byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post) {
 	_eos = _requestComplete = false;
 	_sendingContentsBuffer = nullptr;
 	_sendingContentsSize = _sendingContentsPos = 0;
@@ -81,10 +81,10 @@ void NetworkReadStream::init(const char *url, curl_slist *headersList, byte *buf
 }
 
 NetworkReadStream::NetworkReadStream(const char *url, curl_slist *headersList, Common::String postFields, bool uploading, bool usingPatch) {
-	init(url, headersList, (byte *)postFields.c_str(), postFields.size(), uploading, usingPatch, false);
+	init(url, headersList, (const byte *)postFields.c_str(), postFields.size(), uploading, usingPatch, false);
 }
 
-NetworkReadStream::NetworkReadStream(const char *url, curl_slist *headersList, byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post) {
+NetworkReadStream::NetworkReadStream(const char *url, curl_slist *headersList, const byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post) {
 	init(url, headersList, buffer, bufferSize, uploading, usingPatch, post);
 }
 
diff --git a/backends/networking/curl/networkreadstream.h b/backends/networking/curl/networkreadstream.h
index 7a9d9ff0d1..6f521cbc4b 100644
--- a/backends/networking/curl/networkreadstream.h
+++ b/backends/networking/curl/networkreadstream.h
@@ -35,15 +35,15 @@ namespace Networking {
 class NetworkReadStream: public Common::MemoryReadWriteStream {	
 	CURL *_easy;
 	bool _eos, _requestComplete;
-	byte *_sendingContentsBuffer;
+	const byte *_sendingContentsBuffer;
 	uint32 _sendingContentsSize;
 	uint32 _sendingContentsPos;
 	Common::String _responseHeaders;
-	void init(const char *url, curl_slist *headersList, byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post);
+	void init(const char *url, curl_slist *headersList, const byte *buffer, uint32 bufferSize, bool uploading, bool usingPatch, bool post);
 
 public:	
 	NetworkReadStream(const char *url, curl_slist *headersList, Common::String postFields, bool uploading = false, bool usingPatch = false);
-	NetworkReadStream(const char *url, curl_slist *headersList, byte *buffer, uint32 bufferSize, bool uploading = false, bool usingPatch = false, bool post = true);
+	NetworkReadStream(const char *url, curl_slist *headersList, const byte *buffer, uint32 bufferSize, bool uploading = false, bool usingPatch = false, bool post = true);
 	virtual ~NetworkReadStream();
 
 	/**