Merge topic 'base64-casts'

0bdd4ebf cmCTest: Use size_t for cmsysBase64_Encode return value
a9fae8ac CTest: Fix integer overflow when uploading huge files

1 files changed, 6 insertions, 7 deletions

diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index 80dbaf3..2f1cf10 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -1688,7 +1688,7 @@ std::string cmCTest::Base64GzipEncodeFile(std::string file)
 //----------------------------------------------------------------------
 std::string cmCTest::Base64EncodeFile(std::string file)
 {
-  long len = cmSystemTools::FileLength(file);
+  size_t const len = cmSystemTools::FileLength(file);
   cmsys::ifstream ifs(file.c_str(), std::ios::in
 #ifdef _WIN32
     | std::ios::binary
@@ -1699,14 +1699,13 @@ std::string cmCTest::Base64EncodeFile(std::string file)
   ifs.close();
 
   unsigned char *encoded_buffer
-    = new unsigned char [ static_cast<int>(
-        static_cast<double>(len) * 1.5 + 5.0) ];
+    = new unsigned char [ (len * 3) / 2 + 5 ];
 
-  unsigned long rlen
+  size_t const rlen
     = cmsysBase64_Encode(file_buffer, len, encoded_buffer, 1);
 
   std::string base64 = "";
-  for(unsigned long i = 0; i < rlen; i++)
+  for(size_t i = 0; i < rlen; i++)
     {
     base64 += encoded_buffer[i];
     }
@@ -3190,9 +3189,9 @@ bool cmCTest::CompressString(std::string& str)
 
   // Now base64 encode the resulting binary string
   unsigned char* base64EncodedBuffer
-    = new unsigned char[static_cast<int>(outSize * 1.5)];
+    = new unsigned char[(outSize * 3) / 2];
 
-  unsigned long rlen
+  size_t rlen
     = cmsysBase64_Encode(out, strm.total_out, base64EncodedBuffer, 1);
 
   str = "";