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php_sybase_ct.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2012 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: |
| http://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: Zeev Suraski <[email protected]> |
| Tom May <[email protected]> |
| Timm Friebe <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_sybase_ct.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/info.h"
#include "php_globals.h"
#include "php_ini.h"
/* True globals, no need for thread safety */
static int le_link, le_plink, le_result;
#if HAVE_SYBASE_CT
ZEND_DECLARE_MODULE_GLOBALS(sybase)
static PHP_GINIT_FUNCTION(sybase);
static PHP_GSHUTDOWN_FUNCTION(sybase);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_connect, 0, 0, 0)
ZEND_ARG_INFO(0, host)
ZEND_ARG_INFO(0, user)
ZEND_ARG_INFO(0, password)
ZEND_ARG_INFO(0, charset)
ZEND_ARG_INFO(0, appname)
ZEND_ARG_INFO(0, new)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_pconnect, 0, 0, 0)
ZEND_ARG_INFO(0, host)
ZEND_ARG_INFO(0, user)
ZEND_ARG_INFO(0, password)
ZEND_ARG_INFO(0, charset)
ZEND_ARG_INFO(0, appname)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_close, 0, 0, 0)
ZEND_ARG_INFO(0, link_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_select_db, 0, 0, 1)
ZEND_ARG_INFO(0, database)
ZEND_ARG_INFO(0, link_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_query, 0, 0, 1)
ZEND_ARG_INFO(0, query)
ZEND_ARG_INFO(0, link_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_unbuffered_query, 0, 0, 1)
ZEND_ARG_INFO(0, query)
ZEND_ARG_INFO(0, link_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_free_result, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_get_last_message, 0, 0, 1)
ZEND_ARG_INFO(0, d)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_num_rows, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_num_fields, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_fetch_row, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_fetch_object, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, object)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_fetch_array, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_fetch_assoc, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_data_seek, 0, 0, 2)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_fetch_field, 0, 0, 1)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_field_seek, 0, 0, 2)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, offset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_result, 0, 0, 3)
ZEND_ARG_INFO(0, result)
ZEND_ARG_INFO(0, row)
ZEND_ARG_INFO(0, field)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_affected_rows, 0, 0, 0)
ZEND_ARG_INFO(0, link_id)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_min_client_severity, 0, 0, 1)
ZEND_ARG_INFO(0, severity)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_min_server_severity, 0, 0, 1)
ZEND_ARG_INFO(0, severity)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_deadlock_retry_count, 0, 0, 1)
ZEND_ARG_INFO(0, retry_count)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_sybase_set_message_handler, 0, 0, 1)
ZEND_ARG_INFO(0, error_func)
ZEND_ARG_INFO(0, connection)
ZEND_END_ARG_INFO()
/* }}} */
const zend_function_entry sybase_functions[] = {
PHP_FE(sybase_connect, arginfo_sybase_connect)
PHP_FE(sybase_pconnect, arginfo_sybase_pconnect)
PHP_FE(sybase_close, arginfo_sybase_close)
PHP_FE(sybase_select_db, arginfo_sybase_select_db)
PHP_FE(sybase_query, arginfo_sybase_query)
PHP_FE(sybase_unbuffered_query, arginfo_sybase_unbuffered_query)
PHP_FE(sybase_free_result, arginfo_sybase_free_result)
PHP_FE(sybase_get_last_message, arginfo_sybase_get_last_message)
PHP_FE(sybase_num_rows, arginfo_sybase_num_rows)
PHP_FE(sybase_num_fields, arginfo_sybase_num_fields)
PHP_FE(sybase_fetch_row, arginfo_sybase_fetch_row)
PHP_FE(sybase_fetch_array, arginfo_sybase_fetch_array)
PHP_FE(sybase_fetch_assoc, arginfo_sybase_fetch_assoc)
PHP_FE(sybase_fetch_object, arginfo_sybase_fetch_object)
PHP_FE(sybase_data_seek, arginfo_sybase_data_seek)
PHP_FE(sybase_fetch_field, arginfo_sybase_fetch_field)
PHP_FE(sybase_field_seek, arginfo_sybase_field_seek)
PHP_FE(sybase_result, arginfo_sybase_result)
PHP_FE(sybase_affected_rows, arginfo_sybase_affected_rows)
PHP_FE(sybase_min_client_severity, arginfo_sybase_min_client_severity)
PHP_FE(sybase_min_server_severity, arginfo_sybase_min_server_severity)
PHP_FE(sybase_set_message_handler, arginfo_sybase_set_message_handler)
PHP_FE(sybase_deadlock_retry_count, arginfo_sybase_deadlock_retry_count)
#if !defined(PHP_WIN32) && !defined(HAVE_MSSQL)
PHP_FALIAS(mssql_connect, sybase_connect, arginfo_sybase_connect)
PHP_FALIAS(mssql_pconnect, sybase_pconnect, arginfo_sybase_pconnect)
PHP_FALIAS(mssql_close, sybase_close, arginfo_sybase_close)
PHP_FALIAS(mssql_select_db, sybase_select_db, arginfo_sybase_select_db)
PHP_FALIAS(mssql_query, sybase_query, arginfo_sybase_query)
PHP_FALIAS(mssql_unbuffered_query, sybase_unbuffered_query, arginfo_sybase_unbuffered_query)
PHP_FALIAS(mssql_free_result, sybase_free_result, arginfo_sybase_free_result)
PHP_FALIAS(mssql_get_last_message, sybase_get_last_message, arginfo_sybase_get_last_message)
PHP_FALIAS(mssql_num_rows, sybase_num_rows, arginfo_sybase_num_rows)
PHP_FALIAS(mssql_num_fields, sybase_num_fields, arginfo_sybase_num_fields)
PHP_FALIAS(mssql_fetch_row, sybase_fetch_row, arginfo_sybase_fetch_row)
PHP_FALIAS(mssql_fetch_array, sybase_fetch_array, arginfo_sybase_fetch_array)
PHP_FALIAS(mssql_fetch_assoc, sybase_fetch_assoc, arginfo_sybase_fetch_assoc)
PHP_FALIAS(mssql_fetch_object, sybase_fetch_object, arginfo_sybase_fetch_object)
PHP_FALIAS(mssql_data_seek, sybase_data_seek, arginfo_sybase_data_seek)
PHP_FALIAS(mssql_fetch_field, sybase_fetch_field, arginfo_sybase_fetch_field)
PHP_FALIAS(mssql_field_seek, sybase_field_seek, arginfo_sybase_field_seek)
PHP_FALIAS(mssql_result, sybase_result, arginfo_sybase_result)
PHP_FALIAS(mssql_affected_rows, sybase_affected_rows, arginfo_sybase_affected_rows)
PHP_FALIAS(mssql_min_client_severity, sybase_min_client_severity, arginfo_sybase_min_client_severity)
PHP_FALIAS(mssql_min_server_severity, sybase_min_server_severity, arginfo_sybase_min_server_severity)
PHP_FALIAS(mssql_set_message_handler, sybase_set_message_handler, arginfo_sybase_set_message_handler)
PHP_FALIAS(mssql_deadlock_retry_count, sybase_deadlock_retry_count, arginfo_sybase_deadlock_retry_count)
#endif
PHP_FE_END
};
zend_module_entry sybase_module_entry = {
STANDARD_MODULE_HEADER,
"sybase_ct",
sybase_functions,
PHP_MINIT(sybase),
PHP_MSHUTDOWN(sybase),
PHP_RINIT(sybase),
PHP_RSHUTDOWN(sybase),
PHP_MINFO(sybase),
NO_VERSION_YET,
PHP_MODULE_GLOBALS(sybase),
PHP_GINIT(sybase),
PHP_GSHUTDOWN(sybase),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* static CS_CONTEXT *context; */
#ifdef COMPILE_DL_SYBASE_CT
ZEND_GET_MODULE(sybase)
#endif
ZEND_DECLARE_MODULE_GLOBALS(sybase)
#define CHECK_LINK(link) { if (link==-1) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: A link to the server could not be established"); RETURN_FALSE; } }
static int _clean_invalid_results(zend_rsrc_list_entry *le TSRMLS_DC)
{
if (Z_TYPE_P(le) == le_result) {
sybase_link *sybase_ptr = ((sybase_result *) le->ptr)->sybase_ptr;
if (!sybase_ptr->valid) {
return 1;
}
}
return 0;
}
#define efree_n(x) { efree(x); x = NULL; }
#define efree_if(x) if (x) efree_n(x)
#ifdef PHP_SYBASE_DEBUG
#define FREE_SYBASE_RESULT(result) \
if (result) { \
fprintf(stderr, "_free_sybase_result(%p) called from line #%d\n", result, __LINE__); \
fflush(stderr); \
_free_sybase_result(result); \
result = NULL; \
}
#else
#define FREE_SYBASE_RESULT(result) \
if (result) { \
_free_sybase_result(result); \
result = NULL; \
}
#endif
static void _free_sybase_result(sybase_result *result)
{
int i, j;
if (result->data) {
for (i = 0; i < (result->store ? result->num_rows : MIN(1, result->num_rows)); i++) {
for (j=0; j<result->num_fields; j++) {
zval_dtor(&result->data[i][j]);
}
efree(result->data[i]);
}
efree(result->data);
}
if (result->fields) {
for (i=0; i<result->num_fields; i++) {
STR_FREE(result->fields[i].name);
STR_FREE(result->fields[i].column_source);
}
efree(result->fields);
}
if (result->tmp_buffer) {
for (i=0; i<result->num_fields; i++) {
efree(result->tmp_buffer[i]);
}
efree(result->tmp_buffer);
}
efree_if(result->lengths);
efree_if(result->indicators);
efree_if(result->datafmt);
efree_if(result->numerics);
efree_if(result->types);
efree(result);
}
/* Forward declaration */
static int php_sybase_finish_results (sybase_result *result TSRMLS_DC);
static void php_free_sybase_result(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
sybase_result *result = (sybase_result *)rsrc->ptr;
/* Check to see if we've read all rows */
if (result->sybase_ptr && result->sybase_ptr->active_result_index) {
if (result->sybase_ptr->cmd) {
ct_cancel(NULL, result->sybase_ptr->cmd, CS_CANCEL_ALL);
}
php_sybase_finish_results(result TSRMLS_CC);
}
FREE_SYBASE_RESULT(result);
}
static void _close_sybase_link(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
sybase_link *sybase_ptr = (sybase_link *)rsrc->ptr;
CS_INT con_status;
sybase_ptr->valid = 0;
if (sybase_ptr->callback_name != NULL) {
zval_ptr_dtor(&sybase_ptr->callback_name);
sybase_ptr->callback_name= NULL;
}
zend_hash_apply(&EG(regular_list), (apply_func_t) _clean_invalid_results TSRMLS_CC);
/* Non-persistent connections will always be connected or we wouldn't
* get here, but since we want to check the death status anyway
* we might as well double-check the connect status.
*/
if (ct_con_props(sybase_ptr->connection, CS_GET, CS_CON_STATUS,
&con_status, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to get connection status on close");
/* Assume the worst. */
con_status = CS_CONSTAT_CONNECTED | CS_CONSTAT_DEAD;
}
if (con_status & CS_CONSTAT_CONNECTED) {
if ((con_status & CS_CONSTAT_DEAD) || ct_close(sybase_ptr->connection, CS_UNUSED)!=CS_SUCCEED) {
ct_close(sybase_ptr->connection, CS_FORCE_CLOSE);
}
}
ct_cmd_drop(sybase_ptr->cmd);
ct_con_drop(sybase_ptr->connection);
efree(sybase_ptr);
SybCtG(num_links)--;
}
static void _close_sybase_plink(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
sybase_link *sybase_ptr = (sybase_link *)rsrc->ptr;
CS_INT con_status;
/* Persistent connections may have been closed before a failed
* reopen attempt.
*/
if (ct_con_props(sybase_ptr->connection, CS_GET, CS_CON_STATUS,
&con_status, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to get connection status on close");
/* Assume the worst. */
con_status = CS_CONSTAT_CONNECTED | CS_CONSTAT_DEAD;
}
if (con_status & CS_CONSTAT_CONNECTED) {
if ((con_status & CS_CONSTAT_DEAD) || ct_close(sybase_ptr->connection, CS_UNUSED)!=CS_SUCCEED) {
ct_close(sybase_ptr->connection, CS_FORCE_CLOSE);
}
}
ct_con_drop(sybase_ptr->connection);
free(sybase_ptr);
SybCtG(num_persistent)--;
SybCtG(num_links)--;
}
static CS_RETCODE CS_PUBLIC _client_message_handler(CS_CONTEXT *context, CS_CONNECTION *connection, CS_CLIENTMSG *errmsg)
{
TSRMLS_FETCH();
if (CS_SEVERITY(errmsg->msgnumber) >= SybCtG(min_client_severity)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Client message: %s (severity %ld)", errmsg->msgstring, (long)CS_SEVERITY(errmsg->msgnumber));
}
STR_FREE(SybCtG(server_message));
SybCtG(server_message) = estrdup(errmsg->msgstring);
/* If this is a timeout message, return CS_FAIL to cancel the
* operation and mark the connection as dead.
*/
if (CS_SEVERITY(errmsg->msgnumber) == CS_SV_RETRY_FAIL &&
CS_NUMBER(errmsg->msgnumber) == 63 &&
CS_ORIGIN(errmsg->msgnumber) == 2 &&
CS_LAYER(errmsg->msgnumber) == 1)
{
return CS_FAIL;
}
return CS_SUCCEED;
}
static int _call_message_handler(zval *callback_name, CS_SERVERMSG *srvmsg TSRMLS_DC)
{
int handled = 0;
zval *msgnumber, *severity, *state, *line, *text, *retval = NULL;
zval **args[5];
/* Border case - empty fcall */
if (NULL == callback_name) return 0;
/* Build arguments */
MAKE_STD_ZVAL(msgnumber);
ZVAL_LONG(msgnumber, srvmsg->msgnumber);
args[0] = &msgnumber;
MAKE_STD_ZVAL(severity);
ZVAL_LONG(severity, srvmsg->severity);
args[1] = &severity;
MAKE_STD_ZVAL(state);
ZVAL_LONG(state, srvmsg->state);
args[2] = &state;
MAKE_STD_ZVAL(line);
ZVAL_LONG(line, srvmsg->line);
args[3] = &line;
MAKE_STD_ZVAL(text);
ZVAL_STRING(text, srvmsg->text, 1);
args[4] = &text;
if (call_user_function_ex(EG(function_table), NULL, callback_name, &retval, 5, args, 0, NULL TSRMLS_CC) == FAILURE) {
zval expr_copy;
int use_copy;
zend_make_printable_zval(callback_name, &expr_copy, &use_copy);
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Cannot call the messagehandler %s", Z_STRVAL(expr_copy));
zval_dtor(&expr_copy);
}
if (retval) {
handled = ((Z_TYPE_P(retval) != IS_BOOL) || (Z_BVAL_P(retval) != 0));
zval_ptr_dtor(&retval);
} else {
handled = 0;
}
zval_ptr_dtor(&msgnumber);
zval_ptr_dtor(&severity);
zval_ptr_dtor(&state);
zval_ptr_dtor(&line);
zval_ptr_dtor(&text);
return handled;
}
static CS_RETCODE CS_PUBLIC _server_message_handler(CS_CONTEXT *context, CS_CONNECTION *connection, CS_SERVERMSG *srvmsg)
{
sybase_link *sybase;
int handled = 0;
TSRMLS_FETCH();
/* Remember the last server message in any case */
STR_FREE(SybCtG(server_message));
SybCtG(server_message) = estrdup(srvmsg->text);
/* Retrieve sybase link */
if (ct_con_props(connection, CS_GET, CS_USERDATA, &sybase, CS_SIZEOF(sybase), NULL) != CS_SUCCEED) {
sybase = NULL;
}
/* If this is a deadlock message, set the connection's deadlock flag
* so we will retry the request. Sorry about the bare constant here,
* but it's not defined anywhere and it's a "well-known" number.
*/
if (sybase && (srvmsg->msgnumber == 1205)) {
sybase->deadlock = 1;
}
/* Check mininum server severity level */
if (srvmsg->severity < SybCtG(min_server_severity)) {
return CS_SUCCEED;
}
/* Call global message handler */
handled = handled | _call_message_handler(SybCtG(callback_name), srvmsg TSRMLS_CC);
/* Call link specific message handler */
if (sybase) {
handled = handled | _call_message_handler(sybase->callback_name, srvmsg TSRMLS_CC);
}
/* Spit out a warning if neither of them has handled this message */
if (!handled) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Server message: %s (severity %ld, procedure %s)",
srvmsg->text, (long)srvmsg->severity, ((srvmsg->proclen>0) ? srvmsg->proc : "N/A"));
}
return CS_SUCCEED;
}
PHP_INI_BEGIN()
STD_PHP_INI_BOOLEAN("sybct.allow_persistent", "1", PHP_INI_SYSTEM, OnUpdateLong, allow_persistent, zend_sybase_globals, sybase_globals)
STD_PHP_INI_ENTRY_EX("sybct.max_persistent", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_persistent, zend_sybase_globals, sybase_globals, display_link_numbers)
STD_PHP_INI_ENTRY_EX("sybct.max_links", "-1", PHP_INI_SYSTEM, OnUpdateLong, max_links, zend_sybase_globals, sybase_globals, display_link_numbers)
STD_PHP_INI_ENTRY("sybct.min_server_severity", "10", PHP_INI_ALL, OnUpdateLong, min_server_severity, zend_sybase_globals, sybase_globals)
STD_PHP_INI_ENTRY("sybct.min_client_severity", "10", PHP_INI_ALL, OnUpdateLong, min_client_severity, zend_sybase_globals, sybase_globals)
STD_PHP_INI_ENTRY("sybct.login_timeout", "-1", PHP_INI_ALL, OnUpdateLong, login_timeout, zend_sybase_globals, sybase_globals)
STD_PHP_INI_ENTRY("sybct.hostname", NULL, PHP_INI_ALL, OnUpdateString, hostname, zend_sybase_globals, sybase_globals)
STD_PHP_INI_ENTRY_EX("sybct.deadlock_retry_count", "0", PHP_INI_ALL, OnUpdateLong, deadlock_retry_count, zend_sybase_globals, sybase_globals, display_link_numbers)
PHP_INI_END()
static PHP_GINIT_FUNCTION(sybase)
{
long opt;
if (cs_ctx_alloc(CTLIB_VERSION, &sybase_globals->context)!=CS_SUCCEED || ct_init(sybase_globals->context, CTLIB_VERSION)!=CS_SUCCEED) {
return;
}
/* Initialize message handlers */
if (ct_callback(sybase_globals->context, NULL, CS_SET, CS_SERVERMSG_CB, (CS_VOID *)_server_message_handler)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to set server message handler");
}
if (ct_callback(sybase_globals->context, NULL, CS_SET, CS_CLIENTMSG_CB, (CS_VOID *)_client_message_handler)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to set client message handler");
}
/* Set datetime conversion format to "Nov 3 1998 8:06PM".
* This is the default format for the ct-lib that comes with
* Sybase ASE 11.5.1 for Solaris, but the Linux libraries that
* come with 11.0.3.3 default to "03/11/98" which is singularly
* useless. This levels the playing field for all platforms.
*/
{
CS_INT dt_convfmt = CS_DATES_SHORT;
if (cs_dt_info(sybase_globals->context, CS_SET, NULL, CS_DT_CONVFMT, CS_UNUSED, &dt_convfmt, sizeof(dt_convfmt), NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to set datetime conversion format");
}
}
/* Set the timeout, which is per context and can't be set with
* ct_con_props(), so set it globally from the config value if
* requested. The default is CS_NO_LIMIT.
*
* Note that despite some noise in the documentation about using
* signals to implement timeouts, they are actually implemented
* by using poll() or select() on Solaris and Linux.
*/
if (cfg_get_long("sybct.timeout", &opt)==SUCCESS) {
CS_INT cs_timeout = opt;
if (ct_config(sybase_globals->context, CS_SET, CS_TIMEOUT, &cs_timeout, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to update the timeout");
}
}
sybase_globals->num_persistent=0;
sybase_globals->callback_name = NULL;
}
static PHP_GSHUTDOWN_FUNCTION(sybase)
{
ct_exit(sybase_globals->context, CS_UNUSED);
cs_ctx_drop(sybase_globals->context);
}
PHP_MINIT_FUNCTION(sybase)
{
REGISTER_INI_ENTRIES();
le_link = zend_register_list_destructors_ex(_close_sybase_link, NULL, "sybase-ct link", module_number);
le_plink = zend_register_list_destructors_ex(NULL, _close_sybase_plink, "sybase-ct link persistent", module_number);
le_result = zend_register_list_destructors_ex(php_free_sybase_result, NULL, "sybase-ct result", module_number);
return SUCCESS;
}
PHP_RINIT_FUNCTION(sybase)
{
SybCtG(default_link)=-1;
SybCtG(num_links) = SybCtG(num_persistent);
SybCtG(appname) = estrndup("PHP " PHP_VERSION, sizeof("PHP " PHP_VERSION));
SybCtG(server_message) = STR_EMPTY_ALLOC();
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(sybase)
{
UNREGISTER_INI_ENTRIES();
#if 0
ct_exit(context, CS_UNUSED);
cs_ctx_drop(context);
#endif
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(sybase)
{
efree(SybCtG(appname));
SybCtG(appname) = NULL;
if (SybCtG(callback_name)) {
zval_ptr_dtor(&SybCtG(callback_name));
SybCtG(callback_name)= NULL;
}
STR_FREE(SybCtG(server_message));
SybCtG(server_message) = NULL;
return SUCCESS;
}
static int php_sybase_do_connect_internal(sybase_link *sybase, char *host, char *user, char *passwd, char *charset, char *appname TSRMLS_DC)
{
CS_LOCALE *tmp_locale;
long packetsize;
/* set a CS_CONNECTION record */
if (ct_con_alloc(SybCtG(context), &sybase->connection)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to allocate connection record");
return 0;
}
/* Note - this saves a copy of sybase, not a pointer to it. */
if (ct_con_props(sybase->connection, CS_SET, CS_USERDATA, &sybase, CS_SIZEOF(sybase), NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to set userdata");
ct_con_drop(sybase->connection);
return 0;
}
if (user) {
ct_con_props(sybase->connection, CS_SET, CS_USERNAME, user, CS_NULLTERM, NULL);
}
if (passwd) {
ct_con_props(sybase->connection, CS_SET, CS_PASSWORD, passwd, CS_NULLTERM, NULL);
}
if (appname) {
ct_con_props(sybase->connection, CS_SET, CS_APPNAME, appname, CS_NULLTERM, NULL);
} else {
ct_con_props(sybase->connection, CS_SET, CS_APPNAME, SybCtG(appname), CS_NULLTERM, NULL);
}
if (SybCtG(hostname)) {
ct_con_props(sybase->connection, CS_SET, CS_HOSTNAME, SybCtG(hostname), CS_NULLTERM, NULL);
}
if (charset) {
if (cs_loc_alloc(SybCtG(context), &tmp_locale)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to allocate locale information");
} else {
if (cs_locale(SybCtG(context), CS_SET, tmp_locale, CS_LC_ALL, NULL, CS_NULLTERM, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to load default locale data");
} else {
if (cs_locale(SybCtG(context), CS_SET, tmp_locale, CS_SYB_CHARSET, charset, CS_NULLTERM, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to update character set");
} else {
if (ct_con_props(sybase->connection, CS_SET, CS_LOC_PROP, tmp_locale, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to update connection properties");
}
}
}
}
}
if (cfg_get_long("sybct.packet_size", &packetsize) == SUCCESS) {
if (ct_con_props(sybase->connection, CS_SET, CS_PACKETSIZE, (CS_VOID *)&packetsize, CS_UNUSED, NULL) != CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to update connection packetsize");
}
}
/* Set the login timeout. Actually, the login timeout is per context
* and not per connection, but we will update the context here to
* allow for code such as the following:
*
* ini_set('sybct.login_timeout', $timeout);
* sybase_connect(...)
*
* Note that preceding calls to sybase_connect() will now use the
* updated value and not the default one!
*
* The default value for CS_LOGIN_TIMEOUT is 60 (1 minute).
*/
if (SybCtG(login_timeout) != -1) {
CS_INT cs_login_timeout = SybCtG(login_timeout);
if (ct_config(SybCtG(context), CS_SET, CS_LOGIN_TIMEOUT, &cs_login_timeout, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to update the login timeout");
}
}
sybase->valid = 1;
sybase->dead = 0;
sybase->active_result_index = 0;
sybase->callback_name = NULL;
/* create the link */
if (ct_connect(sybase->connection, host, CS_NULLTERM)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to connect");
ct_con_drop(sybase->connection);
return 0;
}
if (ct_cmd_alloc(sybase->connection, &sybase->cmd)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to allocate command record");
ct_close(sybase->connection, CS_UNUSED);
ct_con_drop(sybase->connection);
return 0;
}
return 1;
}
static void php_sybase_do_connect(INTERNAL_FUNCTION_PARAMETERS, int persistent)
{
char *user = NULL, *passwd = NULL, *host = NULL, *charset = NULL, *appname = NULL;
char *hashed_details;
int hashed_details_length, len;
zend_bool new = 0;
sybase_link *sybase_ptr;
host= user= passwd= charset= appname= NULL;
if (persistent) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s!s!s!s!s!", &host, &len, &user, &len, &passwd, &len, &charset, &len, &appname, &len) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s!s!s!s!s!b", &host, &len, &user, &len, &passwd, &len, &charset, &len, &appname, &len, &new) == FAILURE) {
return;
}
}
hashed_details_length = spprintf(
&hashed_details,
0,
"sybase_%s_%s_%s_%s_%s",
host ? host : "",
user ? user : "",
passwd ? passwd : "",
charset ? charset : "",
appname ? appname : ""
);
if (!SybCtG(allow_persistent)) {
persistent=0;
}
if (persistent) {
zend_rsrc_list_entry *le;
/* try to find if we already have this link in our persistent list */
if (zend_hash_find(&EG(persistent_list), hashed_details, hashed_details_length+1, (void **) &le)==FAILURE) { /* we don't */
zend_rsrc_list_entry new_le;
if (SybCtG(max_links)!=-1 && SybCtG(num_links)>=SybCtG(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Too many open links (%ld)", SybCtG(num_links));
efree(hashed_details);
RETURN_FALSE;
}
if (SybCtG(max_persistent)!=-1 && SybCtG(num_persistent)>=SybCtG(max_persistent)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Too many open persistent links (%ld)", SybCtG(num_persistent));
efree(hashed_details);
RETURN_FALSE;
}
sybase_ptr = (sybase_link *) malloc(sizeof(sybase_link));
if (!sybase_ptr) {
efree(hashed_details);
RETURN_FALSE;
}
if (!php_sybase_do_connect_internal(sybase_ptr, host, user, passwd, charset, appname TSRMLS_CC)) {
free(sybase_ptr);
efree(hashed_details);
RETURN_FALSE;
}
/* hash it up */
Z_TYPE(new_le) = le_plink;
new_le.ptr = sybase_ptr;
if (zend_hash_update(&EG(persistent_list), hashed_details, hashed_details_length+1, (void *) &new_le, sizeof(zend_rsrc_list_entry), NULL)==FAILURE) {
ct_close(sybase_ptr->connection, CS_UNUSED);
ct_con_drop(sybase_ptr->connection);
free(sybase_ptr);
efree(hashed_details);
RETURN_FALSE;
}
SybCtG(num_persistent)++;
SybCtG(num_links)++;
} else { /* we do */
CS_INT con_status;
if (Z_TYPE_P(le) != le_plink) {
efree(hashed_details);
RETURN_FALSE;
}
sybase_ptr = (sybase_link *) le->ptr;
/* If the link has died, close it and overwrite it with a new one. */
if (ct_con_props(sybase_ptr->connection, CS_GET, CS_CON_STATUS,
&con_status, CS_UNUSED, NULL)!=CS_SUCCEED) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Unable to get connection status");
efree(hashed_details);
RETURN_FALSE;
}
if (!(con_status & CS_CONSTAT_CONNECTED) || (con_status & CS_CONSTAT_DEAD) || sybase_ptr->dead) {
sybase_link sybase;
if (con_status & CS_CONSTAT_CONNECTED) {
ct_close(sybase_ptr->connection, CS_FORCE_CLOSE);
}
/* Create a new connection, then replace the old
* connection. If we fail to create a new connection,
* put the old one back so there will be a connection,
* even if it is a non-functional one. This is because
* code may still be holding an id for this connection
* so we can't free the CS_CONNECTION.
* (This is actually totally hokey, it would be better
* to just ct_con_drop() the connection and set
* sybase_ptr->connection to NULL, then test it for
* NULL before trying to use it elsewhere . . .)
*/
memcpy(&sybase, sybase_ptr, sizeof(sybase_link));
if (!php_sybase_do_connect_internal(sybase_ptr, host, user, passwd, charset, appname TSRMLS_CC)) {
memcpy(sybase_ptr, &sybase, sizeof(sybase_link));
efree(hashed_details);
RETURN_FALSE;
}
ct_con_drop(sybase.connection); /* drop old connection */
}
}
ZEND_REGISTER_RESOURCE(return_value, sybase_ptr, le_plink);
} else { /* non persistent */
zend_rsrc_list_entry *index_ptr, new_index_ptr;
/* first we check the hash for the hashed_details key. if it exists,
* it should point us to the right offset where the actual sybase link sits.
* if it doesn't, open a new sybase link, add it to the resource list,
* and add a pointer to it with hashed_details as the key.
*/
if (!new && zend_hash_find(&EG(regular_list), hashed_details, hashed_details_length+1, (void **) &index_ptr)==SUCCESS) {
int type, link;
void *ptr;
if (Z_TYPE_P(index_ptr) != le_index_ptr) {
efree(hashed_details);
RETURN_FALSE;
}
link = (int) index_ptr->ptr;
ptr = zend_list_find(link, &type); /* check if the link is still there */
if (ptr && (type==le_link || type==le_plink)) {
zend_list_addref(link);
Z_LVAL_P(return_value) = SybCtG(default_link) = link;
Z_TYPE_P(return_value) = IS_RESOURCE;
efree(hashed_details);
return;
} else {
zend_hash_del(&EG(regular_list), hashed_details, hashed_details_length+1);
}
}
if (SybCtG(max_links)!=-1 && SybCtG(num_links)>=SybCtG(max_links)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: Too many open links (%ld)", SybCtG(num_links));
efree(hashed_details);
RETURN_FALSE;
}
sybase_ptr = (sybase_link *) emalloc(sizeof(sybase_link));
if (!php_sybase_do_connect_internal(sybase_ptr, host, user, passwd, charset, appname TSRMLS_CC)) {
efree(sybase_ptr);
efree(hashed_details);
RETURN_FALSE;
}
/* add it to the list */
ZEND_REGISTER_RESOURCE(return_value, sybase_ptr, le_link);
/* add it to the hash */
new_index_ptr.ptr = (void *) Z_LVAL_P(return_value);
Z_TYPE(new_index_ptr) = le_index_ptr;
if (zend_hash_update(&EG(regular_list), hashed_details, hashed_details_length+1, (void *) &new_index_ptr, sizeof(zend_rsrc_list_entry), NULL)==FAILURE) {
ct_close(sybase_ptr->connection, CS_UNUSED);
ct_con_drop(sybase_ptr->connection);
efree(sybase_ptr);
efree(hashed_details);
RETURN_FALSE;
}
SybCtG(num_links)++;
}
efree(hashed_details);
SybCtG(default_link)=Z_LVAL_P(return_value);
zend_list_addref(SybCtG(default_link));
}
static int php_sybase_get_default_link(INTERNAL_FUNCTION_PARAMETERS)
{
if (SybCtG(default_link)==-1) { /* no link opened yet, implicitly open one */
ht = 0;
php_sybase_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
return SybCtG(default_link);
}
/* {{{ proto int sybase_connect([string host [, string user [, string password [, string charset [, string appname [, bool new]]]]]])
Open Sybase server connection */
PHP_FUNCTION(sybase_connect)
{
php_sybase_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ proto int sybase_pconnect([string host [, string user [, string password [, string charset [, string appname]]]]])
Open persistent Sybase connection */
PHP_FUNCTION(sybase_pconnect)
{
php_sybase_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
inline static int php_sybase_connection_id(zval *sybase_link_index, int *id TSRMLS_DC)
{
if (NULL == sybase_link_index) {
if (-1 == SybCtG(default_link)) {
return FAILURE;
}
*id = SybCtG(default_link);
} else {
*id = -1; /* explicit resource number */
}
return SUCCESS;
}
/* {{{ proto bool sybase_close([resource link_id])
Close Sybase connection */
PHP_FUNCTION(sybase_close)
{
zval *sybase_link_index = NULL;
sybase_link *sybase_ptr;
int id;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|r", &sybase_link_index) == FAILURE) {
return;
}
if (php_sybase_connection_id(sybase_link_index, &id TSRMLS_CC) == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase: No connection to close");
RETURN_FALSE;
}
ZEND_FETCH_RESOURCE2(sybase_ptr, sybase_link *, &sybase_link_index, id, "Sybase-Link", le_link, le_plink);
if (id == -1) {
zend_list_delete(Z_RESVAL_P(sybase_link_index));
}
if (id != -1 || (sybase_link_index && Z_RESVAL_P(sybase_link_index) == SybCtG(default_link))) {
zend_list_delete(SybCtG(default_link));
SybCtG(default_link) = -1;
}
RETURN_TRUE;
}
/* }}} */
static int exec_cmd(sybase_link *sybase_ptr, char *cmdbuf)
{
CS_RETCODE retcode;
CS_INT restype;
int failure=0;
/* Fail if we already marked this connection dead. */
if (sybase_ptr->dead) {
return FAILURE;
}
/*
** Get a command handle, store the command string in it, and
** send it to the server.
*/
if (ct_command(sybase_ptr->cmd, CS_LANG_CMD, cmdbuf, CS_NULLTERM, CS_UNUSED)!=CS_SUCCEED) {