The class IBase64Streambuf is a class template, using a FBB::CryptType template non-type parameter. Objects of the class FBB::IBase64Streambuf<FBB::ENCRYPT> base64 encode the information they receive, objects of the class FBB::IBase64Streambuf<FBB::DECRYPT> base64 decode the information they receive. See also section ENUMERATION below.
Overloaded move and/or copy assignment operators are not available.
IBase64Streambuf objects either base64 encode or decode information. IBase64Streambuf objects of the class FBB::IBase64Streambuf<FBB::ENCRYPT> base64 encode the data they receive, IBase64Streambuf objects of the class FBB::IBase64Streambuf<FBB::DECRYPT> base64 decode the data they receive.
The values ENCRYPT and DECRYPT are defined in the enum CryptType, which is defined in the FBB namespace.
- IBase64Streambuf<ENCRYPT> objects perform base64 encoding;
- IBase64Streambuf<DECRYPT> objects perform base64 decoding;
- IBase64Streambuf<CryptType> objects obtain the bytes to encode or
decode from std::istream ∈
- The IFilterStreambuf base class is initialized with a buffer of
size bufSize, using a lower bound of 100.
The example shows the construction of IBase64Streambuf<ENCRYPT> objects encode which are used to initialize a std::istream object. The information read from this istream is base64 encoded.
IBase64Streambuf<DECRYPT> objects (decode reads base64 encoded information from std::istream objects and decodes it again).
The std::istream din object is initialized with the IBase64Streambuf<DECRYPT> object, and its contents is sent to std::cout. The information that is presented at std::cin and that appears at std::cout should be identical.
#include <iostream> #include <istream> #include <bobcat/ibase64streambuf> using namespace std; using namespace FBB; int main(int argc, char **argv) { switch (argv[1][0]) { case 'e': { IBase64Streambuf<ENCRYPT> encode(cin); istream ein(&encode); cout << ein.rdbuf(); } break; case 'd': { IBase64Streambuf<DECRYPT> decode(cin); istream din(&decode); cout << din.rdbuf(); } break; case 'b': { IBase64Streambuf<ENCRYPT> encode(cin); istream ein(&encode); IBase64Streambuf<DECRYPT> decode(ein); istream din(&decode); cout << din.rdbuf(); } break; default: cout << "Usage: " << argv[0] << " [edb] < infile > outfile\n" "to base64 -e-ncode, -d-ecode or -b-oth\n"; break; } }