void
QtSqlConnectionBackend::open(SqlDialect *dialect, const SqlSource &source)
{
close();
ScopedLock lock(drv_->conn_mux_);
own_handle_ = true;
conn_name_ = dialect->get_name() + _T("_") + source.db()
+ _T("_") + to_string(drv_->seq_);
++drv_->seq_;
String driver = source.driver();
bool eat_slash = false;
if (driver == _T("QTSQL"))
{
if (dialect->get_name() == _T("MYSQL"))
driver = _T("QMYSQL");
else if (dialect->get_name() == _T("POSTGRES"))
driver = _T("QPSQL");
else if (dialect->get_name() == _T("ORACLE"))
driver = _T("QOCI");
else if (dialect->get_name() == _T("INTERBASE"))
driver = _T("QIBASE");
else if (dialect->get_name() == _T("SQLITE"))
driver = _T("QSQLITE");
if (dialect->native_driver_eats_slash()
&& !str_empty(source.db())
&& char_code(source.db()[0]) == '/')
eat_slash = true;
}
conn_ = new QSqlDatabase(QSqlDatabase::addDatabase(driver, conn_name_));
if (eat_slash)
conn_->setDatabaseName(str_substr(source.db(), 1));
else
conn_->setDatabaseName(source.db());
conn_->setUserName(source.user());
conn_->setPassword(source.passwd());
if (source.port() > 0)
conn_->setPort(source.port());
if (!str_empty(source.host()))
conn_->setHostName(source.host());
String options;
Strings keys = source.options();
for (size_t i = 0; i < keys.size(); ++i) {
if (!str_empty(options))
options += _T(";");
options += keys[i] + _T("=") + source[keys[i]];
}
if (!str_empty(options))
conn_->setConnectOptions(options);
if (!conn_->open())
throw DBError(conn_->lastError().text());
}
void char_count_for_seq(int charcnt[], /* output: char count */
int* n, /* output: str length of the sequence */
const char* buf,
int r, /* row (begin from 0) of table in algorithm */
int m, /* step */
int g, /* shift */
int len) /* string length of the whole string in buf */
{
int i;
int index = 0;
*n = 0;
for (i = 0; (index = r + i * m) < len; ++i) {
++ charcnt [ (char_code(buf[index]) + g) % 26 ];
++(*n);
}
}
void try_keys(int m)
{
int i, j;
/* FILE* out = NULL; */
/* char filename[8] = { 0 }; */
for (i = 0; i < 26; ++i) {
key[0] = 'a' + i;
for (j = 1; j < m; ++j) {
key[j] = code_char((char_code(key[0]) + key_equation[j]) % 26);
}
printf("=== key: %s\n", key);
(void)vigenere_dec(key, m, buf, plaintext, BUF_LEN);
/* sprintf(filename, "vig_out%02d", i); */
/* printf("%s\n", filename); */
printf("%s\n\n", plaintext);
}
}
