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php_odbc.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Stig Sæther Bakken <[email protected]> |
| Andreas Karajannis <[email protected]> |
| Frank M. Kromann <[email protected]> Support for DB/2 CLI |
| Kevin N. Shallow <[email protected]> |
| Daniel R. Kalowsky <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "php.h"
#include "php_globals.h"
#include "zend_attributes.h"
#include "ext/standard/info.h"
#include "Zend/zend_interfaces.h"
#include "zend_smart_str.h"
#include "php_odbc.h"
#include "php_odbc_includes.h"
/* actually lives in main/ */
#include "php_odbc_utils.h"
#ifdef HAVE_UODBC
#include <fcntl.h>
#include "php_ini.h"
#define PHP_ODBC_BINMODE_PASSTHRU 0
#define PHP_ODBC_BINMODE_RETURN 1
#define PHP_ODBC_BINMODE_CONVERT 2
#include "odbc_arginfo.h"
#define CHECK_ODBC_CONNECTION(conn) \
if (conn == NULL) { \
zend_throw_error(NULL, "ODBC connection has already been closed"); \
RETURN_THROWS(); \
}
#define CHECK_ODBC_RESULT(result) \
if (result->conn_ptr == NULL) { \
zend_throw_error(NULL, "ODBC result has already been closed"); \
RETURN_THROWS(); \
}
void odbc_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent);
static void safe_odbc_disconnect(void *handle);
static void close_results_with_connection(odbc_connection *conn);
static inline odbc_result *odbc_result_from_obj(zend_object *obj);
static int le_pconn;
static zend_class_entry *odbc_connection_ce, *odbc_result_ce;
static zend_object_handlers odbc_connection_object_handlers, odbc_result_object_handlers;
#define Z_ODBC_LINK_P(zv) odbc_link_from_obj(Z_OBJ_P(zv))
#define Z_ODBC_CONNECTION_P(zv) Z_ODBC_LINK_P(zv)->connection
#define Z_ODBC_RESULT_P(zv) odbc_result_from_obj(Z_OBJ_P(zv))
static void odbc_insert_new_result(odbc_connection *connection, zval *result)
{
ZEND_ASSERT(Z_TYPE_P(result) == IS_OBJECT);
#if ZEND_DEBUG
ZEND_ASSERT(instanceof_function(Z_OBJCE_P(result), odbc_result_ce));
#endif
odbc_result *res = Z_ODBC_RESULT_P(result);
res->index = connection->results.nNextFreeElement;
zend_hash_index_add_new(&connection->results, res->index, result);
Z_ADDREF_P(result);
}
static inline odbc_link *odbc_link_from_obj(zend_object *obj)
{
return (odbc_link *)((char *)(obj) - XtOffsetOf(odbc_link, std));
}
static int _close_pconn_with_res(zval *zv, void *p)
{
zend_resource *le = Z_RES_P(zv);
if (le->ptr == p) {
return ZEND_HASH_APPLY_REMOVE;
}
return ZEND_HASH_APPLY_KEEP;
}
static int _close_pconn(zval *zv)
{
zend_resource *le = Z_RES_P(zv);
if (le->type == le_pconn) {
return ZEND_HASH_APPLY_REMOVE;
} else {
return ZEND_HASH_APPLY_KEEP;
}
}
/* disconnect, and if it fails, then issue a rollback for any pending transaction (lurcher) */
static void safe_odbc_disconnect( void *handle )
{
int ret = SQLDisconnect( handle );
if ( ret == SQL_ERROR )
{
SQLTransact( NULL, handle, SQL_ROLLBACK );
SQLDisconnect( handle );
}
}
static void free_connection(odbc_connection *conn, bool persistent)
{
/* If aborted via timer expiration, don't try to call any unixODBC function */
if (!(PG(connection_status) & PHP_CONNECTION_TIMEOUT)) {
safe_odbc_disconnect(conn->hdbc);
SQLFreeConnect(conn->hdbc);
SQLFreeEnv(conn->henv);
}
conn->hdbc = NULL;
conn->henv = NULL;
zend_hash_destroy(&conn->results);
pefree(conn, persistent);
ODBCG(num_links)--;
if (persistent) {
ODBCG(num_persistent)--;
}
}
static void odbc_link_free(odbc_link *link)
{
ZEND_ASSERT(link->connection && "link has already been closed");
close_results_with_connection(link->connection);
if (!link->persistent) {
free_connection(link->connection, link->persistent);
}
link->connection = NULL;
if (link->hash) {
zend_hash_del(&ODBCG(connections), link->hash);
zend_string_release_ex(link->hash, link->persistent);
link->hash = NULL;
}
}
static zend_object *odbc_connection_create_object(zend_class_entry *class_type)
{
odbc_link *intern = zend_object_alloc(sizeof(odbc_link), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static zend_function *odbc_connection_get_constructor(zend_object *object)
{
zend_throw_error(NULL, "Cannot directly construct Odbc\\Connection, use odbc_connect() or odbc_pconnect() instead");
return NULL;
}
static zend_result odbc_connection_cast_object(zend_object *obj, zval *result, int type)
{
if (type == IS_LONG) {
ZVAL_LONG(result, obj->handle);
return SUCCESS;
}
return zend_std_cast_object_tostring(obj, result, type);
}
static void odbc_connection_free_obj(zend_object *obj)
{
odbc_link *link = odbc_link_from_obj(obj);
if (link->connection) {
odbc_link_free(link);
}
zend_object_std_dtor(&link->std);
}
static inline odbc_result *odbc_result_from_obj(zend_object *obj)
{
return (odbc_result *)((char *)(obj) - XtOffsetOf(odbc_result, std));
}
static zend_object *odbc_result_create_object(zend_class_entry *class_type)
{
odbc_result *intern = zend_object_alloc(sizeof(odbc_result), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static zend_function *odbc_result_get_constructor(zend_object *object)
{
zend_throw_error(NULL, "Cannot directly construct Odbc\\Result, use an appropriate odbc_* function instead");
return NULL;
}
static zend_result odbc_result_cast_object(zend_object *obj, zval *result, int type)
{
if (type == IS_LONG) {
ZVAL_LONG(result, obj->handle);
return SUCCESS;
}
return zend_std_cast_object_tostring(obj, result, type);
}
static void odbc_result_free(odbc_result *res)
{
ZEND_ASSERT(res->conn_ptr && "result has already been closed");
if (res->values) {
for (int i = 0; i < res->numcols; i++) {
if (res->values[i].value) {
efree(res->values[i].value);
}
}
efree(res->values);
res->values = NULL;
res->numcols = 0;
}
/* If aborted via timer expiration, don't try to call any unixODBC function */
if (res->stmt && !(PG(connection_status) & PHP_CONNECTION_TIMEOUT)) {
#if defined(HAVE_SOLID) || defined(HAVE_SOLID_30) || defined(HAVE_SOLID_35)
SQLTransact(res->conn_ptr->henv, res->conn_ptr->hdbc,
(SQLUSMALLINT) SQL_COMMIT);
#endif
SQLFreeStmt(res->stmt,SQL_DROP);
/* We don't want the connection to be closed after the last statement has been closed
* Connections will be closed on shutdown
*/
res->stmt = NULL;
}
if (res->param_info) {
efree(res->param_info);
res->param_info = NULL;
}
HashTable *results = &res->conn_ptr->results;
res->conn_ptr = NULL;
zend_result status = zend_hash_index_del(results, res->index);
ZEND_ASSERT(status == SUCCESS);
}
static void odbc_result_free_obj(zend_object *obj)
{
odbc_result *result = odbc_result_from_obj(obj);
if (result->conn_ptr) {
odbc_result_free(result);
}
zend_object_std_dtor(&result->std);
}
#define SAFE_SQL_NTS(n) ((SQLSMALLINT) ((n)?(SQL_NTS):0))
PHP_ODBC_API ZEND_DECLARE_MODULE_GLOBALS(odbc)
static PHP_GINIT_FUNCTION(odbc);
static PHP_GSHUTDOWN_FUNCTION(odbc);
/* {{{ odbc_module_entry */
zend_module_entry odbc_module_entry = {
STANDARD_MODULE_HEADER,
"odbc",
ext_functions,
PHP_MINIT(odbc),
PHP_MSHUTDOWN(odbc),
PHP_RINIT(odbc),
PHP_RSHUTDOWN(odbc),
PHP_MINFO(odbc),
PHP_ODBC_VERSION,
PHP_MODULE_GLOBALS(odbc),
PHP_GINIT(odbc),
PHP_GSHUTDOWN(odbc),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_ODBC
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
#endif
ZEND_GET_MODULE(odbc)
#endif
static void close_results_with_connection(odbc_connection *conn)
{
zval *p;
ZEND_HASH_FOREACH_VAL(&conn->results, p) {
odbc_result *result = Z_ODBC_RESULT_P(p);
if (result->conn_ptr) {
odbc_result_free(result);
}
} ZEND_HASH_FOREACH_END();
zend_hash_clean(&conn->results);
}
/* {{{ void _close_odbc_pconn */
static void _close_odbc_pconn(zend_resource *rsrc)
{
odbc_connection *conn = (odbc_connection *)rsrc->ptr;
close_results_with_connection(conn);
free_connection(conn, true);
rsrc->ptr = NULL;
}
/* }}} */
/* {{{ PHP_INI_DISP(display_link_nums) */
static PHP_INI_DISP(display_link_nums)
{
char *value;
if (type == PHP_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ZSTR_VAL(ini_entry->orig_value);
} else if (ini_entry->value) {
value = ZSTR_VAL(ini_entry->value);
} else {
value = NULL;
}
if (value) {
if (atoi(value) == -1) {
PUTS("Unlimited");
} else {
php_printf("%s", value);
}
}
}
/* }}} */
/* {{{ PHP_INI_DISP(display_binmode) */
static PHP_INI_DISP(display_binmode)
{
char *value;
if (type == PHP_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ZSTR_VAL(ini_entry->orig_value);
} else if (ini_entry->value) {
value = ZSTR_VAL(ini_entry->value);
} else {
value = NULL;
}
if (value) {
switch(atoi(value)) {
case 0:
PUTS("passthru");
break;
case 1:
PUTS("return as is");
break;
case 2:
PUTS("return as char");
break;
}
}
}
/* }}} */
/* {{{ PHP_INI_DISP(display_lrl) */
static PHP_INI_DISP(display_lrl)
{
char *value;
if (type == PHP_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ZSTR_VAL(ini_entry->orig_value);
} else if (ini_entry->value) {
value = ZSTR_VAL(ini_entry->value);
} else {
value = NULL;
}
if (value) {
if (atoi(value) <= 0) {
PUTS("Passthru");
} else {
php_printf("return up to %s bytes", value);
}
}
}
/* }}} */
/* {{{ PHP_INI_DISP(display_cursortype) */
static PHP_INI_DISP(display_cursortype)
{
char *value;
if (type == PHP_INI_DISPLAY_ORIG && ini_entry->modified) {
value = ZSTR_VAL(ini_entry->orig_value);
} else if (ini_entry->value) {
value = ZSTR_VAL(ini_entry->value);
} else {
value = NULL;
}
if (value) {
switch (atoi (value))
{
case SQL_CURSOR_FORWARD_ONLY:
PUTS ("Forward Only cursor");
break;
case SQL_CURSOR_STATIC:
PUTS ("Static cursor");
break;
case SQL_CURSOR_KEYSET_DRIVEN:
PUTS ("Keyset driven cursor");
break;
case SQL_CURSOR_DYNAMIC:
PUTS ("Dynamic cursor");
break;
default:
php_printf("Unknown cursor model %s", value);
break;
}
}
}
/* }}} */
/* {{{ PHP_INI_BEGIN */
PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN("odbc.allow_persistent", "1", PHP_INI_SYSTEM, OnUpdateBool,
allow_persistent, zend_odbc_globals, odbc_globals)
STD_PHP_INI_ENTRY_EX("odbc.max_persistent", "-1", PHP_INI_SYSTEM, OnUpdateLong,
max_persistent, zend_odbc_globals, odbc_globals, display_link_nums)
STD_PHP_INI_ENTRY_EX("odbc.max_links", "-1", PHP_INI_SYSTEM, OnUpdateLong,
max_links, zend_odbc_globals, odbc_globals, display_link_nums)
STD_PHP_INI_ENTRY_EX("odbc.defaultlrl", "4096", PHP_INI_ALL, OnUpdateLong,
defaultlrl, zend_odbc_globals, odbc_globals, display_lrl)
STD_PHP_INI_ENTRY_EX("odbc.defaultbinmode", "1", PHP_INI_ALL, OnUpdateLong,
defaultbinmode, zend_odbc_globals, odbc_globals, display_binmode)
STD_PHP_INI_BOOLEAN("odbc.check_persistent", "1", PHP_INI_SYSTEM, OnUpdateBool,
check_persistent, zend_odbc_globals, odbc_globals)
STD_PHP_INI_ENTRY_EX("odbc.default_cursortype", "3", PHP_INI_ALL, OnUpdateLong,
default_cursortype, zend_odbc_globals, odbc_globals, display_cursortype)
PHP_INI_END()
/* }}} */
static PHP_GINIT_FUNCTION(odbc)
{
#if defined(COMPILE_DL_ODBC) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
odbc_globals->num_persistent = 0;
zend_hash_init(&odbc_globals->connections, 0, NULL, NULL, true);
GC_MAKE_PERSISTENT_LOCAL(&odbc_globals->connections);
}
static PHP_GSHUTDOWN_FUNCTION(odbc)
{
zend_hash_destroy(&odbc_globals->connections);
}
/* {{{ PHP_MINIT_FUNCTION */
PHP_MINIT_FUNCTION(odbc)
{
#ifdef SQLANY_BUG
ODBC_SQL_CONN_T foobar;
RETCODE rc;
#endif
REGISTER_INI_ENTRIES();
le_pconn = zend_register_list_destructors_ex(NULL, _close_odbc_pconn, "odbc link persistent", module_number);
odbc_module_entry.type = type;
register_odbc_symbols(module_number);
odbc_connection_ce = register_class_Odbc_Connection();
odbc_connection_ce->create_object = odbc_connection_create_object;
odbc_connection_ce->default_object_handlers = &odbc_connection_object_handlers;
memcpy(&odbc_connection_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
odbc_connection_object_handlers.offset = XtOffsetOf(odbc_link, std);
odbc_connection_object_handlers.free_obj = odbc_connection_free_obj;
odbc_connection_object_handlers.get_constructor = odbc_connection_get_constructor;
odbc_connection_object_handlers.clone_obj = NULL;
odbc_connection_object_handlers.cast_object = odbc_connection_cast_object;
odbc_connection_object_handlers.compare = zend_objects_not_comparable;
odbc_result_ce = register_class_Odbc_Result();
odbc_result_ce->create_object = odbc_result_create_object;
odbc_result_ce->default_object_handlers = &odbc_result_object_handlers;
memcpy(&odbc_result_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
odbc_result_object_handlers.offset = XtOffsetOf(odbc_result, std);
odbc_result_object_handlers.free_obj = odbc_result_free_obj;
odbc_result_object_handlers.get_constructor = odbc_result_get_constructor;
odbc_result_object_handlers.clone_obj = NULL;
odbc_result_object_handlers.cast_object = odbc_result_cast_object;
odbc_result_object_handlers.compare = zend_objects_not_comparable;
#if defined(HAVE_IBMDB2) && defined(_AIX)
/* atexit() handler in the DB2/AIX library segfaults in PHP CLI */
/* DB2NOEXITLIST env variable prevents DB2 from invoking atexit() */
putenv("DB2NOEXITLIST=TRUE");
#endif
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(odbc)
{
ODBCG(defConn) = -1;
ODBCG(num_links) = ODBCG(num_persistent);
memset(ODBCG(laststate), '\0', 6);
memset(ODBCG(lasterrormsg), '\0', SQL_MAX_MESSAGE_LENGTH);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(odbc)
{
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(odbc)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(odbc)
{
char buf[32];
php_info_print_table_start();
php_info_print_table_row(2, "ODBC Support", "enabled");
snprintf(buf, sizeof(buf), ZEND_LONG_FMT, ODBCG(num_persistent));
php_info_print_table_row(2, "Active Persistent Links", buf);
snprintf(buf, sizeof(buf), ZEND_LONG_FMT, ODBCG(num_links));
php_info_print_table_row(2, "Active Links", buf);
php_info_print_table_row(2, "ODBC library", PHP_ODBC_TYPE);
#ifdef ODBCVER
snprintf(buf, sizeof(buf), "0x%.4x", ODBCVER);
php_info_print_table_row(2, "ODBCVER", buf);
#endif
#ifndef PHP_WIN32
php_info_print_table_row(2, "ODBC_CFLAGS", PHP_ODBC_CFLAGS);
php_info_print_table_row(2, "ODBC_LFLAGS", PHP_ODBC_LFLAGS);
php_info_print_table_row(2, "ODBC_LIBS", PHP_ODBC_LIBS);
#endif
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ odbc_sql_error */
void odbc_sql_error(ODBC_SQL_ERROR_PARAMS)
{
SQLINTEGER error; /* Not used */
SQLSMALLINT errormsgsize; /* Not used */
RETCODE rc;
ODBC_SQL_ENV_T henv;
ODBC_SQL_CONN_T conn;
if (conn_resource) {
henv = conn_resource->henv;
conn = conn_resource->hdbc;
} else {
henv = SQL_NULL_HENV;
conn = SQL_NULL_HDBC;
}
/* This leads to an endless loop in many drivers!
*
while(henv != SQL_NULL_HENV){
do {
*/
rc = SQLError(henv, conn, stmt, (SQLCHAR *) ODBCG(laststate), &error, (SQLCHAR *) ODBCG(lasterrormsg), sizeof(ODBCG(lasterrormsg))-1, &errormsgsize);
if (rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO) {
snprintf(ODBCG(laststate), sizeof(ODBCG(laststate)), "HY000");
snprintf(ODBCG(lasterrormsg), sizeof(ODBCG(lasterrormsg)), "Failed to fetch error message");
}
if (conn_resource) {
memcpy(conn_resource->laststate, ODBCG(laststate), sizeof(ODBCG(laststate)));
memcpy(conn_resource->lasterrormsg, ODBCG(lasterrormsg), sizeof(ODBCG(lasterrormsg)));
}
if (func) {
php_error_docref(NULL, E_WARNING, "SQL error: %s, SQL state %s in %s", ODBCG(lasterrormsg), ODBCG(laststate), func);
} else {
php_error_docref(NULL, E_WARNING, "SQL error: %s, SQL state %s", ODBCG(lasterrormsg), ODBCG(laststate));
}
/*
} while (SQL_SUCCEEDED(rc));
}
*/
}
/* }}} */
/* {{{ php_odbc_fetch_attribs */
void php_odbc_fetch_attribs(INTERNAL_FUNCTION_PARAMETERS, int mode)
{
odbc_result *result;
zval *pv_res;
zend_long flag;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &pv_res, odbc_result_ce, &flag) == FAILURE) {
RETURN_THROWS();
}
result = Z_ODBC_RESULT_P(pv_res);
CHECK_ODBC_RESULT(result);
if (mode) {
result->longreadlen = flag;
} else {
result->binmode = flag;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ odbc_bindcols */
void odbc_bindcols(odbc_result *result)
{
RETCODE rc;
int i;
SQLSMALLINT colnamelen; /* Not used */
SQLLEN displaysize;
SQLUSMALLINT colfieldid;
int charextraalloc;
result->values = (odbc_result_value *) safe_emalloc(sizeof(odbc_result_value), result->numcols, 0);
result->longreadlen = ODBCG(defaultlrl);
result->binmode = ODBCG(defaultbinmode);
for(i = 0; i < result->numcols; i++) {
charextraalloc = 0;
colfieldid = SQL_COLUMN_DISPLAY_SIZE;
rc = PHP_ODBC_SQLCOLATTRIBUTE(result->stmt, (SQLUSMALLINT)(i+1), PHP_ODBC_SQL_DESC_NAME,
result->values[i].name, sizeof(result->values[i].name), &colnamelen, 0);
result->values[i].coltype = 0;
rc = PHP_ODBC_SQLCOLATTRIBUTE(result->stmt, (SQLUSMALLINT)(i+1), SQL_COLUMN_TYPE,
NULL, 0, NULL, &result->values[i].coltype);
/* Don't bind LONG / BINARY columns, so that fetch behaviour can
* be controlled by odbc_binmode() / odbc_longreadlen()
*/
switch(result->values[i].coltype) {
case SQL_BINARY:
case SQL_VARBINARY:
case SQL_LONGVARBINARY:
case SQL_LONGVARCHAR:
#if defined(ODBCVER) && (ODBCVER >= 0x0300)
case SQL_WLONGVARCHAR:
#endif
result->values[i].value = NULL;
break;
#ifdef HAVE_ADABAS
case SQL_TIMESTAMP:
result->values[i].value = (char *)emalloc(27);
SQLBindCol(result->stmt, (SQLUSMALLINT)(i+1), SQL_C_CHAR, result->values[i].value,
27, &result->values[i].vallen);
break;
#endif /* HAVE_ADABAS */
case SQL_CHAR:
case SQL_VARCHAR:
#if defined(ODBCVER) && (ODBCVER >= 0x0300)
case SQL_WCHAR:
case SQL_WVARCHAR:
colfieldid = SQL_DESC_OCTET_LENGTH;
#else
charextraalloc = 1;
#endif
/* TODO: Check this is the intended behaviour */
ZEND_FALLTHROUGH;
default:
rc = PHP_ODBC_SQLCOLATTRIBUTE(result->stmt, (SQLUSMALLINT)(i+1), colfieldid,
NULL, 0, NULL, &displaysize);
if (rc != SQL_SUCCESS) {
displaysize = 0;
}
#if defined(ODBCVER) && (ODBCVER >= 0x0300)
if (rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO && colfieldid == SQL_DESC_OCTET_LENGTH) {
SQLINTEGER err;
SQLCHAR errtxt[128];
SQLCHAR state[6];
memset(errtxt, '\0', 128);
memset(state, '\0', 6);
if (SQL_SUCCESS == SQLGetDiagRec(SQL_HANDLE_STMT, result->stmt, 1, state, &err, errtxt, 128, NULL)) {
errtxt[127] = '\0';
state[5] = '\0';
php_error_docref(NULL, E_WARNING, "SQLColAttribute can't handle SQL_DESC_OCTET_LENGTH: [%s] %s", state, errtxt);
}
/* This is a quirk for ODBC 2.0 compatibility for broken driver implementations.
*/
charextraalloc = 1;
rc = SQLColAttributes(result->stmt, (SQLUSMALLINT)(i+1), SQL_COLUMN_DISPLAY_SIZE,
NULL, 0, NULL, &displaysize);
if (rc != SQL_SUCCESS) {
displaysize = 0;
}
}
/* Workaround for drivers that report NVARCHAR(MAX) columns as SQL_WVARCHAR with size 0 (bug #69975) */
if (result->values[i].coltype == SQL_WVARCHAR && displaysize == 0) {
result->values[i].coltype = SQL_WLONGVARCHAR;
result->values[i].value = NULL;
break;
}
#endif
/* Workaround for drivers that report VARCHAR(MAX) columns as SQL_VARCHAR (bug #73725) */
if (SQL_VARCHAR == result->values[i].coltype && displaysize == 0) {
result->values[i].coltype = SQL_LONGVARCHAR;
result->values[i].value = NULL;
break;
}
/* Workaround for Oracle ODBC Driver bug (#50162) when fetching TIMESTAMP column */
if (result->values[i].coltype == SQL_TIMESTAMP) {
displaysize += 3;
}
if (charextraalloc) {
/* Since we don't know the exact # of bytes, allocate extra */
displaysize *= 4;
}
result->values[i].value = (char *)emalloc(displaysize + 1);
rc = SQLBindCol(result->stmt, (SQLUSMALLINT)(i+1), SQL_C_CHAR, result->values[i].value,
displaysize + 1, &result->values[i].vallen);
break;
}
}
}
/* }}} */
/* {{{ odbc_transact */
void odbc_transact(INTERNAL_FUNCTION_PARAMETERS, int type)
{
RETCODE rc;
zval *pv_conn;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &pv_conn, odbc_connection_ce) == FAILURE) {
RETURN_THROWS();
}
odbc_connection *conn = Z_ODBC_CONNECTION_P(pv_conn);
CHECK_ODBC_CONNECTION(conn);
rc = SQLTransact(conn->henv, conn->hdbc, (SQLUSMALLINT)((type)?SQL_COMMIT:SQL_ROLLBACK));
if (rc != SQL_SUCCESS && rc != SQL_SUCCESS_WITH_INFO) {
odbc_sql_error(conn, SQL_NULL_HSTMT, "SQLTransact");
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ odbc_column_lengths */
void odbc_column_lengths(INTERNAL_FUNCTION_PARAMETERS, int type)
{
odbc_result *result;
#if defined(HAVE_SOLID) || defined(HAVE_SOLID_30)
/* this seems to be necessary for Solid2.3 ( tested by
* [email protected]) and Solid 3.0 (tested by [email protected])
* Solid does not seem to declare a SQLINTEGER, but it does declare a
* SQL_INTEGER which does not work (despite being the same type as a SDWORD.
* Solid 3.5 does not have this issue.
*/
SDWORD len;
#else
SQLLEN len;
#endif
zval *pv_res;
zend_long pv_num;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol", &pv_res, odbc_result_ce, &pv_num) == FAILURE) {
RETURN_THROWS();
}
result = Z_ODBC_RESULT_P(pv_res);
CHECK_ODBC_RESULT(result);
if (pv_num < 1) {
zend_argument_value_error(2, "must be greater than 0");
RETURN_THROWS();
}
if (result->numcols == 0) {
php_error_docref(NULL, E_WARNING, "No tuples available at this result index");
RETURN_FALSE;
}
if (pv_num > result->numcols) {
php_error_docref(NULL, E_WARNING, "Field index larger than number of fields");
RETURN_FALSE;
}
PHP_ODBC_SQLCOLATTRIBUTE(result->stmt, (SQLUSMALLINT)pv_num, (SQLUSMALLINT) (type?SQL_COLUMN_SCALE:SQL_COLUMN_PRECISION), NULL, 0, NULL, &len);
RETURN_LONG(len);
}
/* }}} */
/* Main User Functions */
/* {{{ Close all ODBC connections */
PHP_FUNCTION(odbc_close_all)
{
zval *zv;
if (zend_parse_parameters_none() == FAILURE) {
RETURN_THROWS();
}
/* Loop through the link list, now close all links and their results */
ZEND_HASH_FOREACH_VAL(&ODBCG(connections), zv) {
odbc_link *link = Z_ODBC_LINK_P(zv);
if (link->connection) {
odbc_link_free(link);
}
} ZEND_HASH_FOREACH_END();
zend_hash_clean(&ODBCG(connections));
zend_hash_apply(&EG(persistent_list), _close_pconn);
}
/* }}} */
/* {{{ Handle binary column data */
PHP_FUNCTION(odbc_binmode)
{
php_odbc_fetch_attribs(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ Handle LONG columns */
PHP_FUNCTION(odbc_longreadlen)
{
php_odbc_fetch_attribs(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ Prepares a statement for execution */
PHP_FUNCTION(odbc_prepare)
{
zval *pv_conn;
char *query;
size_t query_len;
odbc_result *result = NULL;
RETCODE rc;
int i;
#ifdef HAVE_SQL_EXTENDED_FETCH
SQLUINTEGER scrollopts;
#endif
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Os", &pv_conn, odbc_connection_ce, &query, &query_len) == FAILURE) {
RETURN_THROWS();
}
odbc_connection *conn = Z_ODBC_CONNECTION_P(pv_conn);
CHECK_ODBC_CONNECTION(conn);
object_init_ex(return_value, odbc_result_ce);
result = Z_ODBC_RESULT_P(return_value);
result->numparams = 0;
result->param_info = NULL;
rc = PHP_ODBC_SQLALLOCSTMT(conn->hdbc, &(result->stmt));
if (rc == SQL_INVALID_HANDLE) {
php_error_docref(NULL, E_WARNING, "SQLAllocStmt error 'Invalid Handle'");
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
if (rc == SQL_ERROR) {
odbc_sql_error(conn, SQL_NULL_HSTMT, "SQLAllocStmt");
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
#ifdef HAVE_SQL_EXTENDED_FETCH
/* Solid doesn't have ExtendedFetch, if DriverManager is used, get Info,
whether Driver supports ExtendedFetch */
rc = SQLGetInfo(conn->hdbc, SQL_FETCH_DIRECTION, (void *) &scrollopts, sizeof(scrollopts), NULL);
if (rc == SQL_SUCCESS) {
if ((result->fetch_abs = (scrollopts & SQL_FD_FETCH_ABSOLUTE))) {
/* Try to set CURSOR_TYPE to dynamic. Driver will replace this with other
type if not possible.
*/
SQLSetStmtOption(result->stmt, SQL_CURSOR_TYPE, ODBCG(default_cursortype));
}
} else {
result->fetch_abs = 0;
}
#endif
rc = SQLPrepare(result->stmt, (SQLCHAR *) query, SQL_NTS);
switch (rc) {
case SQL_SUCCESS:
break;
case SQL_SUCCESS_WITH_INFO:
odbc_sql_error(conn, result->stmt, "SQLPrepare");
break;
default:
odbc_sql_error(conn, result->stmt, "SQLPrepare");
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
SQLNumParams(result->stmt, &(result->numparams));
SQLNumResultCols(result->stmt, &(result->numcols));
if (result->numcols > 0) {
odbc_bindcols(result);
} else {
result->values = NULL;
}
result->conn_ptr = conn;
result->fetched = 0;
result->param_info = (odbc_param_info *) safe_emalloc(sizeof(odbc_param_info), result->numparams, 0);
for (i=0;i<result->numparams;i++) {
rc = SQLDescribeParam(result->stmt, (SQLUSMALLINT)(i+1), &result->param_info[i].sqltype, &result->param_info[i].precision,
&result->param_info[i].scale, &result->param_info[i].nullable);
if (rc == SQL_ERROR) {
odbc_sql_error(result->conn_ptr, result->stmt, "SQLDescribeParameter");
SQLFreeStmt(result->stmt, SQL_RESET_PARAMS);
efree(result->param_info);
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
}
odbc_insert_new_result(conn, return_value);
}
/* }}} */
/*
* Execute prepared SQL statement. Supports only input parameters.
*/
typedef struct odbc_params_t {
SQLLEN vallen;
int fp;
zend_string *zstr;
} odbc_params_t;
static void odbc_release_params(odbc_result *result, odbc_params_t *params) {