change base64 internal function name for avoiding symbol conflict at linking libraries.

Author: dena-naruto-takahashi

Diff for: cocos/base/base64.cpp

@@ -32,7 +32,7 @@ namespace cocos2d {
 
 unsigned char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
-int _base64Decode(const unsigned char *input, unsigned int input_len, unsigned char *output, unsigned int *output_len )
+int _ccBase64Decode(const unsigned char *input, unsigned int input_len, unsigned char *output, unsigned int *output_len )
 {
     static char inalphabet[256], decoder[256];
     int i, bits, c = 0, char_count, errors = 0;
@@ -95,7 +95,7 @@ int _base64Decode(const unsigned char *input, unsigned int input_len, unsigned c
     return errors;
 }
 
-void _base64Encode( const unsigned char *input, unsigned int input_len, char *output )
+void _ccBase64Encode( const unsigned char *input, unsigned int input_len, char *output )
 {
     unsigned int char_count;
     unsigned int bits;
@@ -145,7 +145,7 @@ int base64Decode(const unsigned char *in, unsigned int inLength, unsigned char *
     //should be enough to store 6-bit buffers in 8-bit buffers
     *out = (unsigned char*)malloc(inLength / 4 * 3 + 1);
     if( *out ) {
-        int ret = _base64Decode(in, inLength, *out, &outLength);
+        int ret = _ccBase64Decode(in, inLength, *out, &outLength);
 
         if (ret > 0 )
         {
@@ -166,7 +166,7 @@ int base64Encode(const unsigned char *in, unsigned int inLength, char **out) {
     //should be enough to store 8-bit buffers in 6-bit buffers
     *out = (char*)malloc(outLength+1);
     if( *out ) {
-        _base64Encode(in, inLength, *out);
+        _ccBase64Encode(in, inLength, *out);
     }
     return outLength;
 }