mirror of
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466 lines
13 KiB
C
Executable File
466 lines
13 KiB
C
Executable File
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2005 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.0 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_0.txt. |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Wez Furlong <wez@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "php.h"
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#include "php_ini.h"
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#include "ext/standard/info.h"
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#include "pdo/php_pdo.h"
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#include "pdo/php_pdo_driver.h"
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#include "php_pdo_oci.h"
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#include "php_pdo_oci_int.h"
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#include "Zend/zend_extensions.h"
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#define STMT_CALL(name, params) \
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S->last_err = name params; \
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S->last_err = _oci_error(S->err, stmt->dbh, stmt, #name, S->last_err, __FILE__, __LINE__ TSRMLS_CC); \
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if (S->last_err) { \
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return 0; \
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}
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#define STMT_CALL_MSG(name, msg, params) \
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S->last_err = name params; \
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S->last_err = _oci_error(S->err, stmt->dbh, stmt, #name ": " #msg, S->last_err, __FILE__, __LINE__ TSRMLS_CC); \
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if (S->last_err) { \
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return 0; \
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}
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static int oci_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
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{
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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HashTable *BC = stmt->bound_columns;
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HashTable *BP = stmt->bound_params;
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int i;
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if (S->stmt) {
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/* cancel server side resources for the statement if we didn't
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* fetch it all */
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OCIStmtFetch(S->stmt, S->err, 0, OCI_FETCH_NEXT, OCI_DEFAULT);
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/* free the handle */
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OCIHandleFree(S->stmt, OCI_HTYPE_STMT);
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S->stmt = NULL;
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}
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if (S->err) {
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OCIHandleFree(S->err, OCI_HTYPE_ERROR);
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S->err = NULL;
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}
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/* need to ensure these go away now */
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if (BC) {
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zend_hash_destroy(BC);
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FREE_HASHTABLE(stmt->bound_columns);
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stmt->bound_columns = NULL;
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}
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if (BP) {
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zend_hash_destroy(BP);
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FREE_HASHTABLE(stmt->bound_params);
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stmt->bound_params = NULL;
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}
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if (S->einfo.errmsg) {
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efree(S->einfo.errmsg);
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S->einfo.errmsg = NULL;
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}
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if (S->cols) {
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for (i = 0; i < stmt->column_count; i++) {
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if (S->cols[i].data) {
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efree(S->cols[i].data);
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}
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}
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efree(S->cols);
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S->cols = NULL;
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}
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efree(S);
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return 1;
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}
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static int oci_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
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{
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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ub4 rowcount;
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b4 mode;
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if (!S->stmt_type) {
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_STMT_TYPE",
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(S->stmt, OCI_HTYPE_STMT, &S->stmt_type, 0, OCI_ATTR_STMT_TYPE, S->err));
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}
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if (stmt->executed) {
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/* ensure that we cancel the cursor from a previous fetch */
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OCIStmtFetch(S->stmt, S->err, 0, OCI_FETCH_NEXT, OCI_DEFAULT);
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}
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#ifdef OCI_STMT_SCROLLABLE_READONLY /* needed for oci8 ? */
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if (S->exec_type == OCI_STMT_SCROLLABLE_READONLY) {
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mode = OCI_STMT_SCROLLABLE_READONLY;
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} else
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#endif
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if (stmt->dbh->auto_commit && !stmt->dbh->in_txn) {
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mode = OCI_COMMIT_ON_SUCCESS;
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} else {
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mode = OCI_DEFAULT;
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}
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STMT_CALL(OCIStmtExecute, (S->H->svc, S->stmt, S->err,
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S->stmt_type == OCI_STMT_SELECT ? 0 : 1, 0, NULL, NULL,
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mode));
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if (!stmt->executed) {
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ub4 colcount;
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/* do first-time-only definition of bind/mapping stuff */
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/* how many columns do we have ? */
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STMT_CALL_MSG(OCIAttrGet, "ATTR_PARAM_COUNT",
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(S->stmt, OCI_HTYPE_STMT, &colcount, 0, OCI_ATTR_PARAM_COUNT, S->err));
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stmt->column_count = (int)colcount;
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S->cols = ecalloc(colcount, sizeof(pdo_oci_column));
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}
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STMT_CALL_MSG(OCIAttrGet, "ATTR_ROW_COUNT",
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(S->stmt, OCI_HTYPE_STMT, &rowcount, 0, OCI_ATTR_ROW_COUNT, S->err));
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stmt->row_count = (long)rowcount;
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return 1;
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}
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static sb4 oci_bind_input_cb(dvoid *ctx, OCIBind *bindp, ub4 iter, ub4 index, dvoid **bufpp,
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ub4 *alenp, ub1 *piecep, dvoid **indpp)
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{
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struct pdo_bound_param_data *param = (struct pdo_bound_param_data*)ctx;
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pdo_oci_bound_param *P = (pdo_oci_bound_param*)param->driver_data;
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TSRMLS_FETCH();
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if (!param || !param->parameter) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "param is NULL in oci_bind_input_cb; this should not happen");
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return OCI_ERROR;
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}
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*indpp = &P->indicator;
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if (ZVAL_IS_NULL(param->parameter)) {
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/* insert a NULL value into the column */
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P->indicator = -1; /* NULL */
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*bufpp = 0;
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*alenp = -1;
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} else if (!P->thing) {
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/* regular string bind */
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convert_to_string(param->parameter);
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*bufpp = Z_STRVAL_P(param->parameter);
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*alenp = Z_STRLEN_P(param->parameter);
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} else {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "P->thing should not be set??");
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return OCI_ERROR;
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}
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*piecep = OCI_ONE_PIECE;
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return OCI_CONTINUE;
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}
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static sb4 oci_bind_output_cb(dvoid *ctx, OCIBind *bindp, ub4 iter, ub4 index, dvoid **bufpp, ub4 **alenpp,
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ub1 *piecep, dvoid **indpp, ub2 **rcodepp)
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{
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struct pdo_bound_param_data *param = (struct pdo_bound_param_data*)ctx;
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pdo_oci_bound_param *P = (pdo_oci_bound_param*)param->driver_data;
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TSRMLS_FETCH();
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if (!param || !param->parameter) {
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "param is NULL in oci_bind_output_cb; this should not happen");
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return OCI_ERROR;
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}
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if (Z_TYPE_P(param->parameter) == IS_OBJECT || Z_TYPE_P(param->parameter) == IS_RESOURCE) {
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return OCI_CONTINUE;
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}
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convert_to_string(param->parameter);
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zval_dtor(param->parameter);
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Z_STRLEN_P(param->parameter) = param->max_value_len;
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Z_STRVAL_P(param->parameter) = emalloc(Z_STRLEN_P(param->parameter)+1);
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P->actual_len = Z_STRLEN_P(param->parameter);
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*alenpp = &P->actual_len;
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*bufpp = Z_STRVAL_P(param->parameter);
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*piecep = OCI_ONE_PIECE;
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*rcodepp = &P->retcode;
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*indpp = &P->indicator;
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return OCI_CONTINUE;
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}
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static int oci_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
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enum pdo_param_event event_type TSRMLS_DC)
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{
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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/* we're only interested in parameters for prepared SQL right now */
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if (param->is_param) {
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pdo_oci_bound_param *P;
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sb4 value_sz = -1;
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P = (pdo_oci_bound_param*)param->driver_data;
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switch (event_type) {
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case PDO_PARAM_EVT_ALLOC:
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P = (pdo_oci_bound_param*)ecalloc(1, sizeof(pdo_oci_bound_param));
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param->driver_data = P;
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/* figure out what we're doing */
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switch (PDO_PARAM_TYPE(param->param_type)) {
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case PDO_PARAM_LOB:
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case PDO_PARAM_STMT:
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return 0;
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case PDO_PARAM_STR:
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default:
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P->oci_type = SQLT_CHR;
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convert_to_string(param->parameter);
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value_sz = param->max_value_len + 1;
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P->actual_len = Z_STRLEN_P(param->parameter);
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}
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if (param->name) {
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STMT_CALL(OCIBindByName, (S->stmt,
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&P->bind, S->err, (text*)param->name,
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param->namelen, 0, value_sz, P->oci_type,
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&P->indicator, 0, &P->retcode, 0, 0,
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OCI_DATA_AT_EXEC));
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} else {
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STMT_CALL(OCIBindByPos, (S->stmt,
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&P->bind, S->err, param->paramno+1,
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0, value_sz, P->oci_type,
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&P->indicator, 0, &P->retcode, 0, 0,
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OCI_DATA_AT_EXEC));
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}
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STMT_CALL(OCIBindDynamic, (P->bind,
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S->err,
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param, oci_bind_input_cb,
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param, oci_bind_output_cb));
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return 1;
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case PDO_PARAM_EVT_EXEC_PRE:
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P->indicator = 0;
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return 1;
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case PDO_PARAM_EVT_EXEC_POST:
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/* fixup stuff set in motion in oci_bind_output_cb */
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if (P->indicator == -1) {
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/* set up a NULL value */
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if (Z_TYPE_P(param->parameter) == IS_STRING
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#if ZEND_EXTENSION_API_NO < 220040718
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&& Z_STRVAL_P(param->parameter) != empty_string
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#endif
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) {
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/* OCI likes to stick non-terminated strings in things */
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*Z_STRVAL_P(param->parameter) = '\0';
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}
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zval_dtor(param->parameter);
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ZVAL_NULL(param->parameter);
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} else if (Z_TYPE_P(param->parameter) == IS_STRING
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#if ZEND_EXTENSION_API_NO < 220040718
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&& Z_STRVAL_P(param->parameter) != empty_string
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#endif
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) {
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Z_STRLEN_P(param->parameter) = P->actual_len;
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Z_STRVAL_P(param->parameter) = erealloc(Z_STRVAL_P(param->parameter), P->actual_len+1);
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Z_STRVAL_P(param->parameter)[P->actual_len] = '\0';
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}
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return 1;
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}
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}
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return 1;
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}
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static int oci_stmt_fetch(pdo_stmt_t *stmt, enum pdo_fetch_orientation ori,
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long offset TSRMLS_DC)
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{
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#if HAVE_OCISTMTFETCH2
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ub4 ociori;
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#endif
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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#if HAVE_OCISTMTFETCH2
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switch (ori) {
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case PDO_FETCH_ORI_NEXT: ociori = OCI_FETCH_NEXT; break;
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case PDO_FETCH_ORI_PRIOR: ociori = OCI_FETCH_PRIOR; break;
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case PDO_FETCH_ORI_FIRST: ociori = OCI_FETCH_FIRST; break;
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case PDO_FETCH_ORI_LAST: ociori = OCI_FETCH_LAST; break;
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case PDO_FETCH_ORI_ABS: ociori = OCI_FETCH_ABSOLUTE; break;
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case PDO_FETCH_ORI_REL: ociori = OCI_FETCH_RELATIVE; break;
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}
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S->last_err = OCIStmtFetch2(S->stmt, S->err, 1, ociori, offset, OCI_DEFAULT);
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#else
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S->last_err = OCIStmtFetch(S->stmt, S->err, 1, OCI_FETCH_NEXT, OCI_DEFAULT);
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#endif
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if (S->last_err == OCI_NO_DATA) {
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/* no (more) data */
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return 0;
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}
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if (S->last_err == OCI_NEED_DATA) {
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oci_stmt_error("OCI_NEED_DATA");
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return 0;
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}
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if (S->last_err == OCI_SUCCESS_WITH_INFO || S->last_err == OCI_SUCCESS) {
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return 1;
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}
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oci_stmt_error("OCIStmtFetch");
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return 0;
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}
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static int oci_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
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{
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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OCIParam *param = NULL;
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text *colname;
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ub2 dtype, data_size, scale, precis;
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ub4 namelen;
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struct pdo_column_data *col = &stmt->columns[colno];
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zend_bool dyn = FALSE;
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/* describe the column */
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STMT_CALL(OCIParamGet, (S->stmt, OCI_HTYPE_STMT, S->err, (dvoid*)¶m, colno+1));
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/* what type ? */
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_DATA_TYPE",
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(param, OCI_DTYPE_PARAM, &dtype, 0, OCI_ATTR_DATA_TYPE, S->err));
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/* how big ? */
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_DATA_SIZE",
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(param, OCI_DTYPE_PARAM, &data_size, 0, OCI_ATTR_DATA_SIZE, S->err));
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/* scale ? */
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_SCALE",
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(param, OCI_DTYPE_PARAM, &scale, 0, OCI_ATTR_SCALE, S->err));
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/* precision ? */
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_PRECISION",
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(param, OCI_DTYPE_PARAM, &precis, 0, OCI_ATTR_PRECISION, S->err));
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/* name ? */
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STMT_CALL_MSG(OCIAttrGet, "OCI_ATTR_NAME",
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(param, OCI_DTYPE_PARAM, &colname, &namelen, OCI_ATTR_NAME, S->err));
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col->precision = scale;
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col->maxlen = data_size;
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col->namelen = namelen;
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col->name = estrndup(colname, namelen);
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/* how much room do we need to store the field */
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switch (dtype) {
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case SQLT_BIN:
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default:
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dyn = FALSE;
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if (dtype == SQLT_DAT || dtype == SQLT_NUM
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#ifdef SQLT_TIMESTAMP
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|| dtype == SQLT_TIMESTAMP
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#endif
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#ifdef SQLT_TIMESTAMP_TZ
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|| dtype == SQLT_TIMESTAMP_TZ
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#endif
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) {
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/* should be big enough for most date formats and numbers */
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S->cols[colno].datalen = 512;
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} else {
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S->cols[colno].datalen = col->maxlen;
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}
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if (dtype == SQLT_BIN) {
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S->cols[colno].datalen *= 3;
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}
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S->cols[colno].data = emalloc(S->cols[colno].datalen + 1);
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dtype = SQLT_CHR;
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/* returning data as a string */
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col->param_type = PDO_PARAM_STR;
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}
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if (!dyn) {
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STMT_CALL(OCIDefineByPos, (S->stmt, &S->cols[colno].def, S->err, colno+1,
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S->cols[colno].data, S->cols[colno].datalen, dtype, &S->cols[colno].indicator,
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&S->cols[colno].fetched_len, &S->cols[colno].retcode, OCI_DEFAULT));
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}
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return 1;
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}
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static int oci_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len, int *caller_frees TSRMLS_DC)
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{
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pdo_oci_stmt *S = (pdo_oci_stmt*)stmt->driver_data;
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pdo_oci_column *C = &S->cols[colno];
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/* check the indicator to ensure that the data is intact */
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if (C->indicator == -1) {
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/* A NULL value */
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*ptr = NULL;
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*len = 0;
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return 1;
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} else if (C->indicator == 0) {
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/* it was stored perfectly */
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*ptr = C->data;
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*len = C->fetched_len;
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return 1;
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} else {
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/* it was truncated */
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php_error_docref(NULL TSRMLS_CC, E_WARNING, "column %d data was too large for buffer and was truncated to fit it", colno);
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*ptr = C->data;
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*len = C->fetched_len;
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return 1;
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}
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}
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struct pdo_stmt_methods oci_stmt_methods = {
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oci_stmt_dtor,
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oci_stmt_execute,
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oci_stmt_fetch,
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oci_stmt_describe,
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oci_stmt_get_col,
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oci_stmt_param_hook
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};
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: noet sw=4 ts=4 fdm=marker
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* vim<600: noet sw=4 ts=4
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*/
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