#include <mysqlcppapi/mysqlcppapi.h>#include <iostream>#define MY_DATABASE	"telcent"#define MY_TABLE		"fax"#define MY_HOST    "localhost"#define MY_USER    "root"#define MY_PASSWORD ""#define MY_FIELD    "fax" // BLOB field#define MY_KEY      "datet"  // PRIMARY KEYint  main (int argc, char *argv[]){	if (argc < 2) {        std::cerr << "Usage : cgi_image primary_key_value" << std::endl << std::endl;		return -1;	}    std::cout << "Content-type: image/jpeg" << std::endl;  mysqlcppapi::Connection con;	try {	  con.set_Host(MY_HOST);	  con.set_User(MY_USER);	  con.set_Password(MY_PASSWORD);	  con.set_Port(3306);	  con.set_Timeout(60);		con.connect();		con.select_database(MY_DATABASE);				mysqlcppapi::Query query = con.create_Query();		query << "SELECT " << MY_FIELD << " FROM " << MY_TABLE << " WHERE " << MY_KEY << " = " << argv[1];		mysqlcppapi::Result_Use res = query.use();		mysqlcppapi::Row row=res.fetch_row();			mysqlcppapi::Result_Use::type_vecLengths vecLengths = res.get_lengths();		        std::cout << "Content-length: " << vecLengths[0] << std::endl << std::endl;		const char* pchRawData = row[0].data(); 		std::cout.write(pchRawData, vecLengths[0]);		return 0;	} catch (mysqlcppapi::ex_BadQuery& er) {         std::cerr << "Error: " << er.what() << " " << con.errnum() << std::endl;    return -1;	}}