/* Prints the message digest of files, using an arbitrary hash function chosen by the user. This is less flexible that I might like, for example: ./hash sha1 some_file [or md5 or sha-1 or ripemd160 or ...] will not work, cause the name lookup is case-sensitive. Oh well... Written by Jack Lloyd (lloyd@randombit.net), on August 4, 2002 - December 16, 2003: "Fixed" to accept "sha1" or "md5" as a hash name This file is in the public domain */ #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]); 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; }