Expanded the scope of the stream system to include positional functions. Updated

the Connection class so that it won't die horribly if you don't provide the
pointers to updatable memory for the amount of time not spent waiting for data
during a read.
Also fiddled with the http test, as you can see...nothing important.

1 files changed, 35 insertions, 3 deletions

diff --git a/src/sfile.cpp b/src/sfile.cpp
index 9c5f830..3f5144d 100644
--- a/src/sfile.cpp
+++ b/src/sfile.cpp
@@ -22,16 +22,48 @@ void SFile::close()
 size_t SFile::read( char *pBuf, size_t nBytes )
 {
         if( !fh )
-                throw FileException("SFile not open.");
+                throw FileException("File not open.");
 
         return fread( pBuf, 1, nBytes, fh );
 }
 
-size_t SFile::write( char *pBuf, size_t nBytes )
+size_t SFile::write( const char *pBuf, size_t nBytes )
 {
         if( !fh )
-                throw FileException("SFile not open.");
+                throw FileException("File not open.");
 
         return fwrite( pBuf, 1, nBytes, fh );
 }
 
+long SFile::tell()
+{
+        if( !fh )
+                throw FileException("File not open.");
+
+        return ftell( fh );
+}
+
+void SFile::seek( long offset )
+{
+        if( !fh )
+                throw FileException("File not open.");
+
+        fseek( fh, offset, SEEK_CUR );
+}
+
+void SFile::setPos( long pos )
+{
+        if( !fh )
+                throw FileException("File not open.");
+
+        fseek( fh, pos, SEEK_SET );
+}
+
+void SFile::setPosEnd( long pos )
+{
+        if( !fh )
+                throw FileException("File not open.");
+        
+        fseek( fh, pos, SEEK_END );
+}
+