SQLRETURN SQL_API
SQLDataSourcesW(SQLHENV EnvironmentHandle,
SQLUSMALLINT Direction,
SQLWCHAR *ServerName,
SQLSMALLINT BufferLength1,
SQLSMALLINT *NameLength1,
SQLWCHAR *Description,
SQLSMALLINT BufferLength2,
SQLSMALLINT *NameLength2)
{
ODBCEnv *env = (ODBCEnv *) EnvironmentHandle;
SQLRETURN rc;
SQLCHAR *server, *descr;
SQLSMALLINT length1, length2;
#ifdef ODBCDEBUG
ODBCLOG("SQLDataSourcesW " PTRFMT " %s\n",
PTRFMTCAST EnvironmentHandle, translateDirection(Direction));
#endif
if (!isValidEnv(env))
return SQL_INVALID_HANDLE;
clearEnvErrors(env);
server = malloc(100);
descr = malloc(100);
if (server == NULL || descr == NULL) {
/* Memory allocation error */
addEnvError(env, "HY001", NULL, 0);
if (server)
free(server);
if (descr)
free(descr);
return SQL_ERROR;
}
rc = MNDBDataSources(env, Direction,
server, 100, &length1,
descr, 100, &length2);
if (SQL_SUCCEEDED(rc)) {
fixWcharOut(rc, server, length1,
ServerName, BufferLength1, NameLength1,
1, addEnvError, env);
fixWcharOut(rc, descr, length2,
Description, BufferLength2, NameLength2,
1, addEnvError, env);
}
free(server);
free(descr);
return rc;
}
SQLRETURN
MNDBGetDiagRec(SQLSMALLINT HandleType,
SQLHANDLE Handle,
SQLSMALLINT RecNumber,
SQLCHAR *SQLState,
SQLINTEGER *NativeErrorPtr,
SQLCHAR *MessageText,
SQLSMALLINT BufferLength,
SQLSMALLINT *TextLengthPtr)
{
ODBCError *err;
SQLRETURN retCode;
char *msg;
SQLSMALLINT msgLen;
switch (HandleType) {
case SQL_HANDLE_ENV:
/* Check if this struct is still valid/alive */
if (!isValidEnv((ODBCEnv *) Handle))
return SQL_INVALID_HANDLE;
err = getEnvError((ODBCEnv *) Handle);
break;
case SQL_HANDLE_DBC:
/* Check if this struct is still valid/alive */
if (!isValidDbc((ODBCDbc *) Handle))
return SQL_INVALID_HANDLE;
err = getDbcError((ODBCDbc *) Handle);
break;
case SQL_HANDLE_STMT:
/* Check if this struct is still valid/alive */
if (!isValidStmt((ODBCStmt *) Handle))
return SQL_INVALID_HANDLE;
err = getStmtError((ODBCStmt *) Handle);
break;
case SQL_HANDLE_DESC:
/* not yet supported */
return Handle ? SQL_NO_DATA : SQL_INVALID_HANDLE;
default:
return SQL_INVALID_HANDLE;
}
/* Note: BufferLength may be 0 !! */
if (BufferLength < 0)
return SQL_ERROR;
if (RecNumber <= 0)
return SQL_ERROR;
err = getErrorRec(err, RecNumber);
/* Check the error object from the handle, it may be NULL when
* no (more) errors are available
*/
if (err == NULL)
return SQL_NO_DATA;
/* Now fill the output parameters where possible */
if (SQLState) {
char *state = getSqlState(err);
assert(state);
/* copy only the first SQL_SQLSTATE_SIZE (5) chars in
* the buffer and make it null terminated
*/
strncpy((char *) SQLState, state, SQL_SQLSTATE_SIZE);
SQLState[SQL_SQLSTATE_SIZE] = 0;
}
if (NativeErrorPtr)
*NativeErrorPtr = getNativeErrorCode(err);
msg = getMessage(err);
msgLen = msg ? (SQLSMALLINT) strlen(msg) : 0;
retCode = SQL_SUCCESS;
if (MessageText && BufferLength > 0) {
BufferLength--; /* reserve space for term NULL byte */
MessageText[BufferLength] = 0; /* write it already */
/* first write the error message prefix text:
* [MonetDB][ODBC driver VERSION]; this is
* required by the ODBC spec and used to
* determine where the error originated
*/
if (BufferLength > 0)
strncpy((char *) MessageText, ODBCErrorMsgPrefix, BufferLength);
BufferLength -= ODBCErrorMsgPrefixLength;
MessageText += ODBCErrorMsgPrefixLength;
/* next append the error msg itself */
if (msg && BufferLength > 0) {
strncpy((char *) MessageText, msg, BufferLength);
BufferLength -= msgLen;
}
if (BufferLength < 0) {
/* it didn't fit */
retCode = SQL_SUCCESS_WITH_INFO;
}
} else {
/* There is no valid MessageText buffer or its
* buffer size is 0. In these cases we cannot
* write the prefix and message. We just set
* the return code.
*/
retCode = SQL_SUCCESS_WITH_INFO;
}
if (TextLengthPtr)
*TextLengthPtr = (SQLSMALLINT) (msgLen + ODBCErrorMsgPrefixLength);
return retCode;
}
SQLRETURN
MNDBEndTran(SQLSMALLINT HandleType,
SQLHANDLE Handle,
SQLSMALLINT CompletionType)
{
ODBCEnv *env = NULL;
ODBCDbc *dbc = NULL;
SQLHANDLE StatementHandle;
RETCODE rc;
/* check parameters HandleType and Handle for validity */
switch (HandleType) {
case SQL_HANDLE_DBC:
dbc = (ODBCDbc *) Handle;
if (!isValidDbc(dbc))
return SQL_INVALID_HANDLE;
clearDbcErrors(dbc);
if (!dbc->Connected) {
/* Connection does not exist */
addDbcError(dbc, "08003", NULL, 0);
return SQL_ERROR;
}
break;
case SQL_HANDLE_ENV:
env = (ODBCEnv *) Handle;
if (!isValidEnv(env))
return SQL_INVALID_HANDLE;
clearEnvErrors(env);
if (env->sql_attr_odbc_version == 0) {
/* Function sequence error */
addEnvError(env, "HY010", NULL, 0);
return SQL_ERROR;
}
break;
case SQL_HANDLE_STMT:
if (isValidStmt((ODBCStmt *) Handle)) {
clearStmtErrors((ODBCStmt *) Handle);
/* Invalid attribute/option identifier */
addStmtError((ODBCStmt *) Handle, "HY092", NULL, 0);
return SQL_ERROR;
}
return SQL_INVALID_HANDLE;
case SQL_HANDLE_DESC:
if (isValidDesc((ODBCDesc *) Handle)) {
clearDescErrors((ODBCDesc *) Handle);
/* Invalid attribute/option identifier */
addDescError((ODBCDesc *) Handle, "HY092", NULL, 0);
return SQL_ERROR;
}
return SQL_INVALID_HANDLE;
default:
return SQL_INVALID_HANDLE;
}
/* check parameter CompletionType */
if (CompletionType != SQL_COMMIT && CompletionType != SQL_ROLLBACK) {
/* Invalid transaction operation code */
if (HandleType == SQL_HANDLE_DBC)
addDbcError(dbc, "HY012", NULL, 0);
else
addEnvError(env, "HY012", NULL, 0);
return SQL_ERROR;
}
if (HandleType == SQL_HANDLE_ENV) {
RETCODE rc1 = SQL_SUCCESS;
for (dbc = env->FirstDbc; dbc; dbc = dbc->next) {
assert(isValidDbc(dbc));
if (!dbc->Connected)
continue;
rc = MNDBEndTran(SQL_HANDLE_DBC, dbc, CompletionType);
if (rc == SQL_ERROR)
rc1 = SQL_ERROR;
else if (rc == SQL_SUCCESS_WITH_INFO &&
rc1 != SQL_ERROR)
rc1 = rc;
}
return rc1;
}
assert(HandleType == SQL_HANDLE_DBC);
if (dbc->sql_attr_autocommit == SQL_AUTOCOMMIT_ON) {
/* nothing to do if in autocommit mode */
return SQL_SUCCESS;
}
/* construct a statement object and excute a SQL COMMIT or ROLLBACK */
rc = MNDBAllocStmt(dbc, &StatementHandle);
if (SQL_SUCCEEDED(rc)) {
ODBCStmt *stmt = (ODBCStmt *) StatementHandle;
rc = MNDBExecDirect(stmt,
CompletionType == SQL_COMMIT ? (SQLCHAR *) "commit" : (SQLCHAR *) "rollback",
SQL_NTS);
if (rc == SQL_ERROR || rc == SQL_SUCCESS_WITH_INFO) {
/* get the error/warning and post in on the
* dbc handle */
SQLCHAR sqlState[SQL_SQLSTATE_SIZE + 1];
SQLINTEGER nativeErrCode;
SQLCHAR msgText[SQL_MAX_MESSAGE_LENGTH + 1];
(void) MNDBGetDiagRec(SQL_HANDLE_STMT, stmt, 1,
sqlState, &nativeErrCode,
msgText, sizeof(msgText), NULL);
addDbcError(dbc, (char *) sqlState,
(char *) msgText + ODBCErrorMsgPrefixLength,
nativeErrCode);
}
/* clean up the statement handle */
ODBCResetStmt(stmt);
ODBCFreeStmt_(stmt);
for (stmt = dbc->FirstStmt; stmt; stmt = stmt->next)
ODBCResetStmt(stmt);
} else {
/* could not allocate a statement object */
/* Memory management error */
addDbcError(dbc, "HY013", NULL, 0);
return SQL_ERROR;
}
return rc;
}
static SQLRETURN
MNDBGetDiagField(SQLSMALLINT HandleType,
SQLHANDLE Handle,
SQLSMALLINT RecNumber,
SQLSMALLINT DiagIdentifier,
SQLPOINTER DiagInfoPtr,
SQLSMALLINT BufferLength,
SQLSMALLINT *StringLengthPtr)
{
ODBCError *err;
ODBCDbc *dbc = NULL;
/* input & output parameters validity checks */
switch (HandleType) {
case SQL_HANDLE_ENV:
/* Check if this struct is still valid/alive */
if (!isValidEnv((ODBCEnv *) Handle))
return SQL_INVALID_HANDLE;
err = ((ODBCEnv *) Handle)->Error;
break;
case SQL_HANDLE_DBC:
/* Check if this struct is still valid/alive */
dbc = (ODBCDbc *) Handle;
if (!isValidDbc(dbc))
return SQL_INVALID_HANDLE;
err = dbc->Error;
break;
case SQL_HANDLE_STMT:
/* Check if this struct is still valid/alive */
if (!isValidStmt((ODBCStmt *) Handle))
return SQL_INVALID_HANDLE;
err = ((ODBCStmt *) Handle)->Error;
dbc = ((ODBCStmt *) Handle)->Dbc;
break;
case SQL_HANDLE_DESC:
/* Check if this struct is still valid/alive */
if (!isValidDesc((ODBCDesc *) Handle))
return SQL_INVALID_HANDLE;
err = ((ODBCDesc *) Handle)->Error;
dbc = ((ODBCDesc *) Handle)->Dbc;
break;
default:
return SQL_INVALID_HANDLE;
}
/* header fields */
switch (DiagIdentifier) {
case SQL_DIAG_CURSOR_ROW_COUNT: /* SQLLEN */
if (HandleType != SQL_HANDLE_STMT)
return SQL_ERROR;
*(SQLLEN *) DiagInfoPtr = (SQLLEN) ((ODBCStmt *) Handle)->rowSetSize;
return SQL_SUCCESS;
case SQL_DIAG_DYNAMIC_FUNCTION: /* SQLCHAR* */
if (HandleType != SQL_HANDLE_STMT)
return SQL_ERROR;
copyDiagString("", DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
case SQL_DIAG_DYNAMIC_FUNCTION_CODE: /* SQLINTEGER */
if (HandleType != SQL_HANDLE_STMT)
return SQL_ERROR;
*(SQLINTEGER *) DiagInfoPtr = SQL_DIAG_UNKNOWN_STATEMENT;
return SQL_SUCCESS;
case SQL_DIAG_NUMBER: /* SQLINTEGER */
*(SQLINTEGER *) DiagInfoPtr = getErrorRecCount(err);
return SQL_SUCCESS;
case SQL_DIAG_RETURNCODE: /* SQLRETURN */
*(SQLRETURN *) DiagInfoPtr = SQL_SUCCESS;
return SQL_SUCCESS;
case SQL_DIAG_ROW_COUNT: /* SQLLEN */
if (HandleType != SQL_HANDLE_STMT || ((ODBCStmt *) Handle)->State < EXECUTED0)
return SQL_ERROR;
*(SQLLEN *) DiagInfoPtr = (SQLLEN) ((ODBCStmt *) Handle)->rowcount;
return SQL_SUCCESS;
}
/* record fields */
if (RecNumber <= 0)
return SQL_ERROR;
err = getErrorRec(err, RecNumber);
if (err == NULL)
return SQL_NO_DATA;
switch (DiagIdentifier) {
case SQL_DIAG_CLASS_ORIGIN:{ /* SQLCHAR* */
char *msg = strncmp(getSqlState(err), "IM", 2) == 0 ? "ODBC 3.0" : "ISO 9075";
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
case SQL_DIAG_COLUMN_NUMBER: /* SQLINTEGER */
if (HandleType != SQL_HANDLE_STMT)
return SQL_ERROR;
*(SQLINTEGER *) DiagInfoPtr = SQL_COLUMN_NUMBER_UNKNOWN;
return SQL_SUCCESS;
case SQL_DIAG_CONNECTION_NAME:{ /* SQLCHAR* */
char *msg = "MonetDB ODBC/Mapi";
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
#if 0
/* not clear yet what to return here */
case SQL_DIAG_MESSAGE_TEXT: { /* SQLCHAR* */
char msg[1024];
snprintf(msg, sizeof(msg), "");
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
#endif
case SQL_DIAG_NATIVE: /* SQLINTEGER */
*(SQLINTEGER *) DiagInfoPtr = getNativeErrorCode(err);
return SQL_SUCCESS;
case SQL_DIAG_ROW_NUMBER: /* SQLLEN */
if (HandleType != SQL_HANDLE_STMT)
return SQL_ERROR;
*(SQLLEN *) DiagInfoPtr = SQL_ROW_NUMBER_UNKNOWN;
return SQL_SUCCESS;
case SQL_DIAG_SERVER_NAME:{ /* SQLCHAR* */
char *msg = dbc && dbc->Connected && dbc->dsn ? dbc->dsn : "";
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
case SQL_DIAG_SQLSTATE:{ /* SQLCHAR* */
char *msg = getSqlState(err);
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
case SQL_DIAG_SUBCLASS_ORIGIN:{ /* SQLCHAR* */
char *state = getSqlState(err);
char *msg;
if (('0' <= state[0] && state[0] <= '4') ||
('A' <= state[0] && state[0] <= 'H'))
msg = "ISO 9075"; /* defined by standard */
else
msg = "ODBC 3.0"; /* effectively just "IM" */
copyDiagString(msg, DiagInfoPtr, BufferLength, StringLengthPtr);
return SQL_SUCCESS;
}
}
/* Currently no Diagnostic Fields are supported.
Hence we always return NO_DATA */
return SQL_NO_DATA;
}
