Add an example for using checksums (CRC, Adler32) and Pipe/Filter/Fork

1 files changed, 31 insertions, 0 deletions

diff --git a/doc/examples/checksum.cpp b/doc/examples/checksum.cpp
new file mode 100644
index 000000000..3dc6e9757
--- /dev/null
+++ b/doc/examples/checksum.cpp
@@ -0,0 +1,31 @@
+#include <botan/botan.h>
+#include <botan/filters.h>
+
+#include <iostream>
+
+using namespace Botan;
+
+int main(int argc, char* argv[])
+   {
+   if(argc != 2)
+      {
+      std::cout << "Usage: " << argv[0] << " filename\n";
+      return 1;
+      }
+
+   LibraryInitializer init;
+
+   Pipe pipe(new Fork(
+                new Chain(new Hash_Filter("CRC24"), new Hex_Encoder),
+                new Chain(new Hash_Filter("CRC32"), new Hex_Encoder),
+                new Chain(new Hash_Filter("Adler32"), new Hex_Encoder)
+                ));
+
+   DataSource_Stream in(argv[1]);
+
+   pipe.process_msg(in);
+
+   std::cout << pipe.read_all_as_string(0) << "\n";
+   std::cout << pipe.read_all_as_string(1) << "\n";
+   std::cout << pipe.read_all_as_string(2) << "\n";
+   }