bool
Connection::ping()
{
if (connected()) {
error_message_.clear();
return driver_->ping();
}
else {
// Not connected, and we've forgotten everything we need in
// order to re-connect, if we once were connected.
build_error_message("ping database server");
return false;
}
}
bool
Connection::shutdown()
{
error_message_.clear();
if (connected()) {
if (driver_->shutdown()) {
return true;
}
else {
if (throw_exceptions()) {
throw ConnectionFailed(error(), errnum());
}
return false;
}
}
else {
build_error_message("shutdown database server");
if (throw_exceptions()) {
throw ConnectionFailed(error_message_.c_str());
}
return false;
}
}
bool
Connection::select_db(const std::string& db)
{
error_message_.clear();
if (connected()) {
if (driver_->select_db(db.c_str())) {
return true;
}
else {
if (throw_exceptions()) {
throw DBSelectionFailed(error(), errnum());
}
return false;
}
}
else {
build_error_message("select a database");
if (throw_exceptions()) {
throw DBSelectionFailed(error_message_.c_str());
}
return false;
}
}
static int pamtester_expr_parser_hdlr(pamtester_expr_parser_t *parser, pamtester_token_t token, const char *token_val, size_t token_val_len)
{
switch (token) {
case PAMTESTER_TOKEN_NUMERIC: {
int val;
char *next_ptr;
if (parser->last_token == PAMTESTER_TOKEN_NUMERIC) {
parser->last_error = build_error_message("unexpected token", token_val, token_val_len);
return 1;
}
val = strtol(token_val, &next_ptr, 10);
if (next_ptr - token_val != token_val_len
|| errno == ERANGE || errno == EINVAL) {
if (parser->const_resolve_hdlr == NULL
|| parser->const_resolve_hdlr(parser->hdlr_param, &val, token_val, token_val_len)) {
parser->last_error = build_error_message("undefined constant", token_val, token_val_len);
return 1;
}
}
if (parser->last_token == PAMTESTER_TOKEN_NOT) {
val = ~val;
}
parser->val_filo[parser->val_filo_idx] = val;
parser->val_filo_idx++;
} break;
case PAMTESTER_TOKEN_NOT:
break;
case PAMTESTER_TOKEN_OR: {
if (parser->last_token != PAMTESTER_TOKEN_NUMERIC) {
parser->last_error = build_error_message("unexpected token", token_val, token_val_len);
return 1;
}
if (parser->val_filo_idx >= 2 && parser->op_filo_idx > 0) {
switch (parser->op_filo[parser->op_filo_idx - 1]) {
case PAMTESTER_TOKEN_NULL:
break;
case PAMTESTER_TOKEN_OR:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] |= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
case PAMTESTER_TOKEN_XOR:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] ^= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
case PAMTESTER_TOKEN_AND:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] &= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
default:
break;
}
}
parser->op_filo[parser->op_filo_idx++] = token;
} break;
case PAMTESTER_TOKEN_XOR: {
if (parser->last_token != PAMTESTER_TOKEN_NUMERIC) {
parser->last_error = build_error_message("unexpected token", token_val, token_val_len);
return 1;
}
if (parser->val_filo_idx >= 2 && parser->op_filo_idx > 0) {
switch (parser->op_filo[parser->op_filo_idx - 1]) {
case PAMTESTER_TOKEN_NULL:
case PAMTESTER_TOKEN_OR:
break;
case PAMTESTER_TOKEN_AND:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] &= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
case PAMTESTER_TOKEN_XOR:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] ^= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
default:
break;
}
}
parser->op_filo[parser->op_filo_idx++] = token;
} break;
case PAMTESTER_TOKEN_AND: {
if (parser->last_token != PAMTESTER_TOKEN_NUMERIC) {
parser->last_error = build_error_message("unexpected token", token_val, token_val_len);
return 1;
}
if (parser->val_filo_idx >= 2 && parser->op_filo_idx > 0) {
switch (parser->op_filo[parser->op_filo_idx - 1]) {
case PAMTESTER_TOKEN_NULL:
case PAMTESTER_TOKEN_OR:
case PAMTESTER_TOKEN_XOR:
break;
case PAMTESTER_TOKEN_AND:
parser->op_filo_idx--;
parser->val_filo[parser->val_filo_idx - 2] &= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
default:
break;
}
}
parser->op_filo[parser->op_filo_idx++] = token;
} break;
case PAMTESTER_TOKEN_NULL: {
while (parser->val_filo_idx >= 2 && parser->op_filo_idx > 0) {
switch (parser->op_filo[--parser->op_filo_idx]) {
case PAMTESTER_TOKEN_OR:
parser->val_filo[parser->val_filo_idx - 2] |= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
case PAMTESTER_TOKEN_XOR:
parser->val_filo[parser->val_filo_idx - 2] ^= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
case PAMTESTER_TOKEN_AND:
parser->val_filo[parser->val_filo_idx - 2] &= parser->val_filo[parser->val_filo_idx - 1];
parser->val_filo_idx--;
break;
default:
break;
}
}
if (parser->last_token == PAMTESTER_TOKEN_NULL) {
parser->empty_result = 1;
} else {
parser->result = parser->val_filo[0];
}
} break;
default:
break;
}
parser->last_token = token;
return 0;
}
