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-rw-r--r--examples/hash.cpp58
1 files changed, 58 insertions, 0 deletions
diff --git a/examples/hash.cpp b/examples/hash.cpp
new file mode 100644
index 000000000..1a4ca1b64
--- /dev/null
+++ b/examples/hash.cpp
@@ -0,0 +1,58 @@
+/*
+* (C) 2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <iostream>
+#include <fstream>
+#include <botan/botan.h>
+
+int main(int argc, char* argv[])
+ {
+ if(argc < 3)
+ {
+ std::cout << "Usage: " << argv[0] << " digest <filenames>" << std::endl;
+ return 1;
+ }
+
+ Botan::LibraryInitializer init;
+
+ std::string hash = argv[1];
+ /* a couple of special cases, kind of a crock */
+ if(hash == "sha1") hash = "SHA-1";
+ if(hash == "md5") hash = "MD5";
+
+ try {
+ if(!Botan::have_hash(hash))
+ {
+ std::cout << "Unknown hash \"" << argv[1] << "\"" << std::endl;
+ return 1;
+ }
+
+ Botan::Pipe pipe(new Botan::Hash_Filter(hash),
+ new Botan::Hex_Encoder);
+
+ int skipped = 0;
+ for(int j = 2; argv[j] != 0; j++)
+ {
+ std::ifstream file(argv[j], std::ios::binary);
+ if(!file)
+ {
+ std::cout << "ERROR: could not open " << argv[j] << std::endl;
+ skipped++;
+ continue;
+ }
+ pipe.start_msg();
+ file >> pipe;
+ pipe.end_msg();
+ pipe.set_default_msg(j-2-skipped);
+ std::cout << pipe << " " << argv[j] << std::endl;
+ }
+ }
+ catch(std::exception& e)
+ {
+ std::cout << "Exception caught: " << e.what() << std::endl;
+ }
+ return 0;
+ }