root/ext/msql/php_msql.c

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DEFINITIONS

This source file includes following definitions.
  1. ZEND_GET_MODULE
  2. _delete_query
  3. php_msql_query_wrapper
  4. _close_msql_link
  5. _close_msql_plink
  6. PHP_MINIT_FUNCTION
  7. PHP_RINIT_FUNCTION
  8. PHP_MINFO_FUNCTION
  9. php_msql_do_connect
  10. php_msql_get_default_link
  11. PHP_FUNCTION
  12. PHP_FUNCTION
  13. PHP_FUNCTION
  14. PHP_FUNCTION
  15. PHP_FUNCTION
  16. PHP_FUNCTION
  17. PHP_FUNCTION
  18. PHP_FUNCTION
  19. PHP_FUNCTION
  20. PHP_FUNCTION
  21. PHP_FUNCTION
  22. PHP_FUNCTION
  23. PHP_FUNCTION
  24. PHP_FUNCTION
  25. PHP_FUNCTION
  26. php_msql_fetch_hash
  27. PHP_FUNCTION
  28. PHP_FUNCTION
  29. PHP_FUNCTION
  30. PHP_FUNCTION
  31. php_msql_get_field_name
  32. PHP_FUNCTION
  33. PHP_FUNCTION
  34. php_msql_field_info
  35. PHP_FUNCTION
  36. PHP_FUNCTION
  37. PHP_FUNCTION
  38. PHP_FUNCTION
  39. PHP_FUNCTION
  40. PHP_FUNCTION
  41. PHP_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2008 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          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Author: Zeev Suraski <zeev@zend.com>                                 |
   +----------------------------------------------------------------------+
 */
 
/* $Id: php_msql.c,v 1.60.2.4.2.3 2007/12/31 07:20:08 sebastian Exp $ */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_msql.h"
#include "ext/standard/php_standard.h"
#include "ext/standard/info.h"
#include "php_globals.h"

#if HAVE_MSQL

#define OS_UNIX 1

#if defined(WIN32) && defined(MSQL1)
#include <msql1.h>
#else
#include <msql.h>
#endif

static php_msql_globals msql_globals;

#define MSQL_ASSOC              1<<0
#define MSQL_NUM                1<<1
#define MSQL_BOTH               (MSQL_ASSOC|MSQL_NUM)

/* {{{ msql_functions[]
 */
zend_function_entry msql_functions[] = {
        PHP_FE(msql_connect,                                                    NULL)
        PHP_FE(msql_pconnect,                                                   NULL)
        PHP_FE(msql_close,                                                              NULL)
        PHP_FE(msql_select_db,                                                  NULL)
        PHP_FE(msql_create_db,                                                  NULL)
        PHP_FE(msql_drop_db,                                                    NULL)
        PHP_FE(msql_query,                                                              NULL)
        PHP_FE(msql_db_query,                                                   NULL)
        PHP_FE(msql_list_dbs,                                                   NULL)
        PHP_FE(msql_list_tables,                                                NULL)
        PHP_FE(msql_list_fields,                                                NULL)
        PHP_FE(msql_error,                                                              NULL)
        PHP_FE(msql_result,                                                             NULL)
        PHP_FE(msql_num_rows,                                                   NULL)
        PHP_FE(msql_num_fields,                                                 NULL)
        PHP_FE(msql_fetch_row,                                                  NULL)
        PHP_FE(msql_fetch_array,                                                NULL)
        PHP_FE(msql_fetch_object,                                               NULL)
        PHP_FE(msql_data_seek,                                                  NULL)
        PHP_FE(msql_fetch_field,                                                NULL)
        PHP_FE(msql_field_seek,                                                 NULL)
        PHP_FE(msql_free_result,                                                NULL)
        PHP_FE(msql_field_name,                                                 NULL)
        PHP_FE(msql_field_table,                                                NULL)
        PHP_FE(msql_field_len,                                                  NULL)
        PHP_FE(msql_field_type,                                                 NULL)
        PHP_FE(msql_field_flags,                                                NULL)
        
        PHP_FALIAS(msql_fieldname,              msql_field_name,                NULL)
        PHP_FALIAS(msql_fieldtable,             msql_field_table,               NULL)
        PHP_FALIAS(msql_fieldlen,               msql_field_len,                 NULL)
        PHP_FALIAS(msql_fieldtype,              msql_field_type,                NULL)
        PHP_FALIAS(msql_fieldflags,             msql_field_flags,               NULL)
        
        PHP_FALIAS(msql_regcase,                sql_regcase,                    NULL)
        
        PHP_FALIAS(msql_affected_rows,  msql_affected_rows,             NULL)
        
        /* for downwards compatability */
        PHP_FALIAS(msql,                                msql_db_query,                  NULL)
        PHP_FALIAS(msql_selectdb,               msql_select_db,                 NULL)
        PHP_FALIAS(msql_createdb,               msql_create_db,                 NULL)
        PHP_FALIAS(msql_dropdb,                 msql_drop_db,                   NULL)
        PHP_FALIAS(msql_freeresult,             msql_free_result,               NULL)
        PHP_FALIAS(msql_numfields,              msql_num_fields,                NULL)
        PHP_FALIAS(msql_numrows,                msql_num_rows,                  NULL)
        PHP_FALIAS(msql_listdbs,                msql_list_dbs,                  NULL)
        PHP_FALIAS(msql_listtables,             msql_list_tables,               NULL)
        PHP_FALIAS(msql_listfields,             msql_list_fields,               NULL)
        PHP_FALIAS(msql_dbname,                 msql_result,                    NULL)
        PHP_FALIAS(msql_tablename,              msql_result,                    NULL)
        {NULL, NULL, NULL}
};
/* }}} */

zend_module_entry msql_module_entry = {
        STANDARD_MODULE_HEADER,
        "msql", msql_functions, PHP_MINIT(msql), NULL, PHP_RINIT(msql), NULL,
                        PHP_MINFO(msql), NO_VERSION_YET, STANDARD_MODULE_PROPERTIES
};


#ifdef COMPILE_DL_MSQL
ZEND_GET_MODULE(msql)
#endif

typedef struct {
        m_result *result;
        int af_rows;
} m_query;

#define MSQL_GET_QUERY(res)                                                                                                                                                     \
        ZEND_FETCH_RESOURCE(msql_query, m_query *, &res, -1, "mSQL result", msql_globals.le_query);     \
        msql_result = msql_query->result

static void _delete_query(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        m_query *query = (m_query *)rsrc->ptr;

        if(query->result) msqlFreeResult(query->result);
        efree(query);
}

static m_query *php_msql_query_wrapper(m_result *res, int af_rows)
{
        m_query *query = (m_query *) emalloc(sizeof(m_query));
        
        query->result = res;
        query->af_rows = af_rows;
        
        return query;
}

static void _close_msql_link(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        int link = (int)rsrc->ptr;

        msqlClose(link);
        msql_globals.num_links--;
}


static void _close_msql_plink(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        int link = (int)rsrc->ptr;

        msqlClose(link);
        msql_globals.num_persistent--;
        msql_globals.num_links--;
}

/* {{{ PHP_MINIT_FUNCTION
 */
PHP_MINIT_FUNCTION(msql)
{
        if (cfg_get_long("msql.allow_persistent",&msql_globals.allow_persistent)==FAILURE) {
                msql_globals.allow_persistent=1;
        }
        if (cfg_get_long("msql.max_persistent",&msql_globals.max_persistent)==FAILURE) {
                msql_globals.max_persistent=-1;
        }
        if (cfg_get_long("msql.max_links",&msql_globals.max_links)==FAILURE) {
                msql_globals.max_links=-1;
        }
        msql_globals.num_persistent=0;
        msql_globals.le_query = zend_register_list_destructors_ex(_delete_query, NULL, "msql query", module_number);
        msql_globals.le_link = zend_register_list_destructors_ex(_close_msql_link, NULL, "msql link", module_number);
        msql_globals.le_plink = zend_register_list_destructors_ex(NULL, _close_msql_plink, "msql link persistent", module_number);
        
        Z_TYPE(msql_module_entry) = type;

        REGISTER_LONG_CONSTANT("MSQL_ASSOC", MSQL_ASSOC, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MSQL_NUM", MSQL_NUM, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MSQL_BOTH", MSQL_BOTH, CONST_CS | CONST_PERSISTENT);

        return SUCCESS;
}
/* }}} */

/* {{{ PHP_RINIT_FUNCTION
 */
PHP_RINIT_FUNCTION(msql)
{
        msql_globals.default_link=-1;
        msql_globals.num_links = msql_globals.num_persistent;
        msqlErrMsg[0]=0;
        return SUCCESS;
}
/* }}} */

/* {{{ PHP_MINFO_FUNCTION
 */
PHP_MINFO_FUNCTION(msql)
{
        char maxp[32],maxl[32];

        if (msql_globals.max_persistent==-1) {
                snprintf(maxp, 31, "%d/unlimited", msql_globals.num_persistent );
        } else {
                snprintf(maxp, 31, "%d/%ld", msql_globals.num_persistent, msql_globals.max_persistent);
        }
        maxp[31]=0;

        if (msql_globals.max_links==-1) {
                snprintf(maxl, 15, "%d/unlimited", msql_globals.num_links );
        } else {
                snprintf(maxl, 15, "%d/%ld", msql_globals.num_links, msql_globals.max_links);
        }
        maxl[31]=0;

        php_info_print_table_start();
        php_info_print_table_row(2, "MSQL Support", "enabled" );
        php_info_print_table_row(2, "Allow Persistent Links", (msql_globals.allow_persistent?"yes":"no") );
        php_info_print_table_row(2, "Persistent Links", maxp );
        php_info_print_table_row(2, "Total Links", maxl );
        php_info_print_table_end();

}
/* }}} */

/* {{{ php_msql_do_connect
 */
static void php_msql_do_connect(INTERNAL_FUNCTION_PARAMETERS,int persistent)
{
        char *host;
        char *hashed_details;
        int hashed_details_length;
        int msql;
        
        switch(ZEND_NUM_ARGS()) {
                case 0: /* defaults */
                        host=NULL;
                        hashed_details=estrndup("msql_",5);
                        hashed_details_length=4+1;
                        break;
                case 1: {
                                zval *yyhost;
                        
                                if (zend_get_parameters(ht, 1, &yyhost) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string(yyhost);
                                host = Z_STRVAL_P(yyhost);
                                hashed_details_length = spprintf(&hashed_details, 0, "msql_%s",Z_STRVAL_P(yyhost));
                        }
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        if (!msql_globals.allow_persistent) {
                persistent=0;
        }
        if (persistent) {
                zend_rsrc_list_entry *le;
                
                if (msql_globals.max_links!=-1 && msql_globals.num_links>=msql_globals.max_links) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open links (%d)", msql_globals.num_links);
                        efree(hashed_details);
                        RETURN_FALSE;
                }
                if (msql_globals.max_persistent!=-1 && msql_globals.num_persistent>=msql_globals.max_persistent) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open persistent links (%d)", msql_globals.num_persistent);
                        efree(hashed_details);
                        RETURN_FALSE;
                }
                
                /* 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;
                        
                        /* create the link */
                        if ((msql=msqlConnect(host))==-1) {
                                efree(hashed_details);
                                RETURN_FALSE;
                        }
                        
                        /* hash it up */
                        Z_TYPE(new_le) = msql_globals.le_plink;
                        new_le.ptr = (void *) msql;
                        if (zend_hash_update(&EG(persistent_list), hashed_details, hashed_details_length+1, (void *) &new_le, sizeof(zend_rsrc_list_entry), NULL)==FAILURE) {
                                efree(hashed_details);
                                RETURN_FALSE;
                        }
                        msql_globals.num_persistent++;
                        msql_globals.num_links++;
                } else {  /* we do */
                        if (Z_TYPE_P(le) != msql_globals.le_plink) {
                                efree(hashed_details);
                                RETURN_FALSE;
                        }
#if 0
                        /* ensure that the link did not die */
                        /* still have to find a way to do this nicely with mSQL */
                        if (msql_stat(le->ptr)==NULL) { /* the link died */
                                if (msql_connect(le->ptr,host,user,passwd)==NULL) {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "mSQL link lost, unable to reconnect");
                                        zend_hash_del(&EG(persistent_list),hashed_details,hashed_details_length+1);
                                        efree(hashed_details);
                                        RETURN_FALSE;
                                }
                        }
#endif
                        msql = (int) le->ptr;
                }
                ZEND_REGISTER_RESOURCE(return_value, (void *) msql, msql_globals.le_plink);
        } else {
                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 msql link sits.
                 * if it doesn't, open a new msql link, add it to the resource list,
                 * and add a pointer to it with hashed_details as the key.
                 */
                if (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) {
                                RETURN_FALSE;
                        }
                        link = (int) index_ptr->ptr;
                        ptr = zend_list_find(link,&type);   /* check if the link is still there */
                        if (ptr && (type==msql_globals.le_link || type==msql_globals.le_plink)) {
                                Z_LVAL_P(return_value) = msql_globals.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 (msql_globals.max_links!=-1 && msql_globals.num_links>=msql_globals.max_links) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Too many open links (%d)",msql_globals.num_links);
                        efree(hashed_details);
                        RETURN_FALSE;
                }
                if ((msql=msqlConnect(host))==-1) {
                        efree(hashed_details);
                        RETURN_FALSE;
                }

                /* add it to the list */
                ZEND_REGISTER_RESOURCE(return_value, (void *) msql, msql_globals.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) {
                        efree(hashed_details);
                        RETURN_FALSE;
                }
                msql_globals.num_links++;
        }
        efree(hashed_details);
        msql_globals.default_link=Z_LVAL_P(return_value);
}
/* }}} */

/* {{{ php_msql_get_default_link
 */
static int php_msql_get_default_link(INTERNAL_FUNCTION_PARAMETERS)
{
        if (msql_globals.default_link==-1) { /* no link opened yet, implicitly open one */
                ht = 0;
                php_msql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
        }
        return msql_globals.default_link;
}
/* }}} */

/* {{{ proto int msql_connect([string hostname[:port]] [, string username] [, string password])
   Open a connection to an mSQL Server */
PHP_FUNCTION(msql_connect)
{
        php_msql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,0);
}
/* }}} */

/* {{{ proto int msql_pconnect([string hostname[:port]] [, string username] [, string password])
   Open a persistent connection to an mSQL Server */
PHP_FUNCTION(msql_pconnect)
{
        php_msql_do_connect(INTERNAL_FUNCTION_PARAM_PASSTHRU,1);
}
/* }}} */

/* {{{ proto bool msql_close([resource link_identifier])
   Close an mSQL connection */
PHP_FUNCTION(msql_close)
{
        zval *msql_link;
        int id;
        int msql;
        
        switch (ZEND_NUM_ARGS()) {
                case 0:
                        id = msql_globals.default_link;
                        break;
                case 1:
                        if (zend_get_parameters(ht, 1, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        if (id==-1) { /* explicit resource number */
                zend_list_delete(Z_RESVAL_P(msql_link));
        }

        if (id!=-1 
                || (msql_link && Z_RESVAL_P(msql_link)==msql_globals.default_link)) {
                zend_list_delete(msql_globals.default_link);
                msql_globals.default_link = -1;
        }

        RETURN_TRUE;
}
/* }}} */

/* {{{ proto bool msql_select_db(string database_name [, resource link_identifier])
   Select an mSQL database */
PHP_FUNCTION(msql_select_db)
{
        zval *db,*msql_link;
        int id;
        int msql;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &db)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        

        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);

        convert_to_string(db);
        
        if (msqlSelectDB(msql,Z_STRVAL_P(db))==-1) {
                RETURN_FALSE;
        } else {
                RETURN_TRUE;
        }
}
/* }}} */

/* {{{ proto bool msql_create_db(string database_name [, resource link_identifier])
   Create an mSQL database */
PHP_FUNCTION(msql_create_db)
{
        zval *db,*msql_link;
        int id;
        int msql;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &db)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &msql_link)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(db);
        if (msqlCreateDB(msql,Z_STRVAL_P(db))<0) {
                RETURN_FALSE;
        } else {
                RETURN_TRUE;
        }
}
/* }}} */

/* {{{ proto bool msql_drop_db(string database_name [, resource link_identifier])
   Drop (delete) an mSQL database */
PHP_FUNCTION(msql_drop_db)
{
        zval *db,*msql_link;
        int id;
        int msql;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &db)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &msql_link)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(db);
        if (msqlDropDB(msql,Z_STRVAL_P(db))<0) {
                RETURN_FALSE;
        } else {
                RETURN_TRUE;
        }
}
/* }}} */

/* {{{ proto resource msql_query(string query [, resource link_identifier])
   Send an SQL query to mSQL */
PHP_FUNCTION(msql_query)
{
        zval *query,*msql_link;
        int id;
        int msql;
        int af_rows;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &query)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = msql_globals.default_link;
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &query, &msql_link)==FAILURE) {
                                WRONG_PARAM_COUNT;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(query);
        if ((af_rows = msqlQuery(msql,Z_STRVAL_P(query)))==-1) {
                RETURN_FALSE;
        }
        ZEND_REGISTER_RESOURCE(return_value, php_msql_query_wrapper(msqlStoreResult(), af_rows), msql_globals.le_query);
}
/* }}} */

/* {{{ proto resource msql_db_query(string database_name, string query [, resource link_identifier])
   Send an SQL query to mSQL */
PHP_FUNCTION(msql_db_query)
{
        zval *db,*query,*msql_link;
        int id;
        int msql;
        int af_rows;
        
        switch(ZEND_NUM_ARGS()) {
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &query)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 3:
                        if (zend_get_parameters(ht, 3, &db, &query, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(db);
        if (msqlSelectDB(msql,Z_STRVAL_P(db))==-1) {
                RETURN_FALSE;
        }
        
        convert_to_string(query);
        if ((af_rows = msqlQuery(msql,Z_STRVAL_P(query)))==-1) {
                RETURN_FALSE;
        }
        ZEND_REGISTER_RESOURCE(return_value, php_msql_query_wrapper(msqlStoreResult(), af_rows), msql_globals.le_query);
}
/* }}} */

/* {{{ proto resource msql_list_dbs([resource link_identifier])
   List databases available on an mSQL server */
PHP_FUNCTION(msql_list_dbs)
{
        zval *msql_link;
        int id;
        int msql;
        m_result *msql_result;
        
        switch(ZEND_NUM_ARGS()) {
                case 0:
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 1:
                        if (zend_get_parameters(ht, 1, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);

        if ((msql_result=msqlListDBs(msql))==NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to save mSQL query result");
                RETURN_FALSE;
        }
        ZEND_REGISTER_RESOURCE(return_value, php_msql_query_wrapper(msql_result, 0), msql_globals.le_query);
}
/* }}} */

/* {{{ proto resource msql_list_tables(string database_name [, resource link_identifier])
   List tables in an mSQL database */
PHP_FUNCTION(msql_list_tables)
{
        zval *db,*msql_link;
        int id;
        int msql;
        m_result *msql_result;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &db)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(db);
        if (msqlSelectDB(msql,Z_STRVAL_P(db))==-1) {
                RETURN_FALSE;
        }
        if ((msql_result=msqlListTables(msql))==NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to save mSQL query result");
                RETURN_FALSE;
        }
        ZEND_REGISTER_RESOURCE(return_value, php_msql_query_wrapper(msql_result, 0), msql_globals.le_query);
}
/* }}} */

/* {{{ proto resource msql_list_fields(string database_name, string table_name [, resource link_identifier])
   List mSQL result fields */
PHP_FUNCTION(msql_list_fields)
{
        zval *db,*table,*msql_link;
        int id;
        int msql;
        m_result *msql_result;
        
        switch(ZEND_NUM_ARGS()) {
                case 2:
                        if (zend_get_parameters(ht, 2, &db, &table)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_msql_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 3:
                        if (zend_get_parameters(ht, 3, &db, &table, &msql_link)==FAILURE) {
                                RETURN_FALSE;
                        }
                        id = -1;
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        ZEND_FETCH_RESOURCE2(msql, int, &msql_link, id, "mSQL-Link", msql_globals.le_link, msql_globals.le_plink);
        
        convert_to_string(db);
        if (msqlSelectDB(msql,Z_STRVAL_P(db))==-1) {
                RETURN_FALSE;
        }
        convert_to_string(table);
        if ((msql_result=msqlListFields(msql,Z_STRVAL_P(table)))==NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to save mSQL query result");
                RETURN_FALSE;
        }
        ZEND_REGISTER_RESOURCE(return_value, php_msql_query_wrapper(msql_result, 0), msql_globals.le_query);
}
/* }}} */

/* {{{ proto string msql_error(void)
   Returns the text of the error message from previous mSQL operation */
PHP_FUNCTION(msql_error)
{
        if (ZEND_NUM_ARGS()) {
                WRONG_PARAM_COUNT;
        }
        RETURN_STRING(msqlErrMsg,1);
}
/* }}} */

/* {{{ proto string msql_result(int query, int row [, mixed field])
   Get result data */
PHP_FUNCTION(msql_result)
{
        zval *result, *row, *field=NULL;
        m_result *msql_result;
        m_query *msql_query;
        m_row sql_row;
        int field_offset=0;
        
        switch (ZEND_NUM_ARGS()) {
                case 2:
                        if (zend_get_parameters(ht, 2, &result, &row)==FAILURE) {
                                RETURN_FALSE;
                        }
                        break;
                case 3:
                        if (zend_get_parameters(ht, 3, &result, &row, &field)==FAILURE) {
                                RETURN_FALSE;
                        }
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        MSQL_GET_QUERY(result);
        
        convert_to_long(row);
        if (Z_LVAL_P(row)<0 || Z_LVAL_P(row)>=msqlNumRows(msql_result)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to jump to row %ld on mSQL query index %ld", Z_LVAL_P(row), Z_LVAL_P(result));
                RETURN_FALSE;
        }
        msqlDataSeek(msql_result,Z_LVAL_P(row));
        if ((sql_row=msqlFetchRow(msql_result))==NULL) { /* shouldn't happen? */
                RETURN_FALSE;
        }

        if (field) {
                switch(Z_TYPE_P(field)) {
                        case IS_STRING: {
                                        int i=0;
                                        m_field *tmp_field;
                                        char *table_name,*field_name,*tmp;
                                        
                                        if ((tmp=strchr(Z_STRVAL_P(field),'.'))) {
                                                *tmp = 0;
                                                table_name = estrdup(Z_STRVAL_P(field));
                                                field_name = estrdup(tmp+1);
                                        } else {
                                                table_name = NULL;
                                                field_name = estrndup(Z_STRVAL_P(field),Z_STRLEN_P(field));
                                        }
                                        msqlFieldSeek(msql_result,0);
                                        while ((tmp_field=msqlFetchField(msql_result))) {
                                                if ((!table_name || !strcasecmp(tmp_field->table,table_name)) && !strcasecmp(tmp_field->name,field_name)) {
                                                        field_offset = i;
                                                        break;
                                                }
                                                i++;
                                        }
                                        if (!tmp_field) { /* no match found */
                                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s%s%s not found in mSQL query index %ld",
                                                                        (table_name?table_name:""), (table_name?".":""), field_name, Z_LVAL_P(result));
                                                efree(field_name);
                                                if (table_name) {
                                                        efree(table_name);
                                                }
                                                RETURN_FALSE;
                                        }
                                        efree(field_name);
                                        if (table_name) {
                                                efree(table_name);
                                        }
                                }
                                break;
                        default:
                                convert_to_long(field);
                                field_offset = Z_LVAL_P(field);
                                if (field_offset<0 || field_offset>=msqlNumFields(msql_result)) {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Bad column offset specified");
                                        RETURN_FALSE;
                                }
                                break;
                }
        }
        
        if (sql_row[field_offset]) {
                if (PG(magic_quotes_runtime)) {
                        Z_STRVAL_P(return_value) = php_addslashes(sql_row[field_offset],0,&Z_STRLEN_P(return_value),0 TSRMLS_CC);
                } else {        
                        Z_STRLEN_P(return_value) = (sql_row[field_offset]?strlen(sql_row[field_offset]):0);
                        Z_STRVAL_P(return_value) = (char *) safe_estrndup(sql_row[field_offset],Z_STRLEN_P(return_value));
                }
                Z_TYPE_P(return_value) = IS_STRING;
        } else {
                ZVAL_FALSE(return_value);
        }
}
/* }}} */

/* {{{ proto int msql_num_rows(resource query)
   Get number of rows in a result */
PHP_FUNCTION(msql_num_rows)
{
        zval *result;
        m_result *msql_result;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=1 || zend_get_parameters(ht, 1, &result)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        RETVAL_LONG(msql_result ? msqlNumRows(msql_result) : 0);
}
/* }}} */

/* {{{ proto int msql_num_fields(resource query)
   Get number of fields in a result */
PHP_FUNCTION(msql_num_fields)
{
        zval *result;
        m_result *msql_result;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=1 || zend_get_parameters(ht, 1, &result)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        RETVAL_LONG(msql_result ? msqlNumFields(msql_result) : 0);
}
/* }}} */

/* {{{ php_msql_fetch_hash
 */
static void php_msql_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, int result_type)
{
        zval *result, *arg2;
        m_result *msql_result;
        m_row msql_row;
        m_field *msql_field;
        m_query *msql_query;
        int num_fields;
        int i;
        
        switch (ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &result)==FAILURE) {
                                RETURN_FALSE;
                        }
                        if (!result_type) {
                                result_type = MSQL_BOTH;
                        }
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &result, &arg2)==FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long(arg2);
                        result_type = Z_LVAL_P(arg2);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        MSQL_GET_QUERY(result);
        if (!msql_result || (msql_row=msqlFetchRow(msql_result))==NULL) {
                RETURN_FALSE;
        }

        num_fields = msqlNumFields(msql_result);
        
        array_init(return_value);
        
        msqlFieldSeek(msql_result,0);
        for (msql_field=msqlFetchField(msql_result),i=0; msql_field; msql_field=msqlFetchField(msql_result),i++) {
                if (msql_row[i]) {
                        char *data;
                        int data_len;
                        int should_copy;

                        if (PG(magic_quotes_runtime)) {
                                data = php_addslashes(msql_row[i], 0, &data_len, 0 TSRMLS_CC);
                                should_copy = 0;
                        } else {
                                data = msql_row[i];
                                data_len = strlen(data);
                                should_copy = 1;
                        }
                        
                        if (result_type & MSQL_NUM) {
                                add_index_stringl(return_value, i, data, data_len, should_copy);
                                should_copy = 1;
                        }
                        
                        if (result_type & MSQL_ASSOC) {
                                add_assoc_stringl(return_value, msql_field->name, data, data_len, should_copy);
                        }
                } else {
                        /* NULL value. */
                        if (result_type & MSQL_NUM) {
                                add_index_null(return_value, i);
                        }

                        if (result_type & MSQL_ASSOC) {
                                add_assoc_null(return_value, msql_field->name);
                        }
                }
        }
}
/* }}} */

/* {{{ proto array msql_fetch_row(resource query)
   Get a result row as an enumerated array */
PHP_FUNCTION(msql_fetch_row)
{
        php_msql_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, MSQL_NUM);
}
/* }}} */

/* {{{ proto object msql_fetch_object(resource query [, resource result_type])
   Fetch a result row as an object */
PHP_FUNCTION(msql_fetch_object)
{
        php_msql_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
        if (Z_TYPE_P(return_value)==IS_ARRAY) {
                object_and_properties_init(return_value, ZEND_STANDARD_CLASS_DEF_PTR, Z_ARRVAL_P(return_value));
        }
}
/* }}} */

/* {{{ proto array msql_fetch_array(resource query [, int result_type])
   Fetch a result row as an associative array */
PHP_FUNCTION(msql_fetch_array)
{
        php_msql_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */

/* {{{ proto bool msql_data_seek(resource query, int row_number)
   Move internal result pointer */
PHP_FUNCTION(msql_data_seek)
{
        zval *result,*offset;
        m_result *msql_result;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=2 || zend_get_parameters(ht, 2, &result, &offset)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        convert_to_long(offset);
        if (!msql_result ||
                        Z_LVAL_P(offset)<0 || 
                        Z_LVAL_P(offset)>=msqlNumRows(msql_result)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%ld is invalid for mSQL query index %ld", Z_LVAL_P(offset), Z_LVAL_P(result));
                RETURN_FALSE;
        }
        msqlDataSeek(msql_result,Z_LVAL_P(offset));
        RETURN_TRUE;
}
/* }}} */

/* {{{ php_msql_get_field_name
 */
static char *php_msql_get_field_name(int field_type)
{
        switch (field_type) {
#if MSQL1
                case INT_TYPE:
                        return "int";
                        break;
                case CHAR_TYPE:
                        return "char";
                        break;
                case REAL_TYPE:
                        return "real";
                        break;
                case IDENT_TYPE:
                        return "ident";
                        break;
                case NULL_TYPE:
                        return "null";
                        break;
#else
                case INT_TYPE:
                case UINT_TYPE:
                case CHAR_TYPE:
                case TEXT_TYPE:
                case REAL_TYPE:
                case NULL_TYPE:
                case DATE_TYPE:
                case TIME_TYPE:
                case MONEY_TYPE:
                        return msqlTypeNames[field_type];
                        break;
#endif
                default:
                        return "unknown";
                        break;
        }
}
/* }}} */

/* {{{ proto object msql_fetch_field(resource query [, int field_offset])
   Get column information from a result and return as an object */
PHP_FUNCTION(msql_fetch_field)
{
        zval *result, *field=NULL;
        m_result *msql_result;
        m_field *msql_field;
        m_query *msql_query;
        
        switch (ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters(ht, 1, &result)==FAILURE) {
                                RETURN_FALSE;
                        }
                        break;
                case 2:
                        if (zend_get_parameters(ht, 2, &result, &field)==FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long(field);
                default:
                        WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        
        if (field) {
                if (Z_LVAL_P(field)<0 || Z_LVAL_P(field)>=msqlNumRows(msql_result)) {
                        php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Bad field offset specified");
                        RETURN_FALSE;
                }
                msqlFieldSeek(msql_result,Z_LVAL_P(field));
        }
        if (!msql_result || (msql_field=msqlFetchField(msql_result))==NULL) {
                RETURN_FALSE;
        }
        object_init(return_value);

        add_property_string(return_value, "name",(msql_field->name?msql_field->name:""), 1);
        add_property_string(return_value, "table",(msql_field->table?msql_field->table:""), 1);
        add_property_long(return_value, "not_null",IS_NOT_NULL(msql_field->flags));
#if MSQL1
        add_property_long(return_value, "primary_key",(msql_field->flags&PRI_KEY_FLAG?1:0));
#else
        add_property_long(return_value, "unique",(msql_field->flags&UNIQUE_FLAG?1:0));
#endif

        add_property_string(return_value, "type",php_msql_get_field_name(Z_TYPE_P(msql_field)), 1);
}
/* }}} */

/* {{{ proto bool msql_field_seek(resource query, int field_offset)
   Set result pointer to a specific field offset */
PHP_FUNCTION(msql_field_seek)
{
        zval *result, *offset;
        m_result *msql_result;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=2 || zend_get_parameters(ht, 2, &result, &offset)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        convert_to_long(offset);
        if(!msql_result) {
                RETURN_FALSE;
        }
        if (Z_LVAL_P(offset)<0 || Z_LVAL_P(offset)>=msqlNumFields(msql_result)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Field %ld is invalid for mSQL query index %ld",
                                Z_LVAL_P(offset),Z_LVAL_P(result));
                RETURN_FALSE;
        }
        msqlFieldSeek(msql_result,Z_LVAL_P(offset));
        RETURN_TRUE;
}
/* }}} */

#define PHP_MSQL_FIELD_NAME 1
#define PHP_MSQL_FIELD_TABLE 2
#define PHP_MSQL_FIELD_LEN 3
#define PHP_MSQL_FIELD_TYPE 4
#define PHP_MSQL_FIELD_FLAGS 5

/* {{{ php_msql_field_info
 */
static void php_msql_field_info(INTERNAL_FUNCTION_PARAMETERS, int entry_type)
{
        zval *result, *field;
        m_result *msql_result;
        m_field *msql_field;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=2 || zend_get_parameters(ht, 2, &result, &field)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        MSQL_GET_QUERY(result);
        if(!msql_result) {
                RETURN_FALSE;
        }
        convert_to_long(field);
        if (Z_LVAL_P(field)<0 || Z_LVAL_P(field)>=msqlNumFields(msql_result)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Field %ld is invalid for mSQL query index %ld", Z_LVAL_P(field), Z_LVAL_P(result));
                RETURN_FALSE;
        }
        msqlFieldSeek(msql_result,Z_LVAL_P(field));
        if ((msql_field=msqlFetchField(msql_result))==NULL) {
                RETURN_FALSE;
        }
        
        switch (entry_type) {
                case PHP_MSQL_FIELD_NAME:
                        Z_STRLEN_P(return_value) = strlen(msql_field->name);
                        Z_STRVAL_P(return_value) = estrndup(msql_field->name,Z_STRLEN_P(return_value));
                        Z_TYPE_P(return_value) = IS_STRING;
                        break;
                case PHP_MSQL_FIELD_TABLE:
                        Z_STRLEN_P(return_value) = strlen(msql_field->table);
                        Z_STRVAL_P(return_value) = estrndup(msql_field->table,Z_STRLEN_P(return_value));
                        Z_TYPE_P(return_value) = IS_STRING;
                        break;
                case PHP_MSQL_FIELD_LEN:
                        Z_LVAL_P(return_value) = msql_field->length;
                        Z_TYPE_P(return_value) = IS_LONG;
                        break;
                case PHP_MSQL_FIELD_TYPE:
                        Z_STRVAL_P(return_value) = estrdup(php_msql_get_field_name(Z_TYPE_P(msql_field)));
                        Z_STRLEN_P(return_value) = strlen(Z_STRVAL_P(return_value));
                        Z_TYPE_P(return_value) = IS_STRING;
                        break;
                case PHP_MSQL_FIELD_FLAGS:
#if MSQL1
                        if ((msql_field->flags&NOT_NULL_FLAG) && (msql_field->flags&PRI_KEY_FLAG)) {
                                Z_STRVAL_P(return_value) = estrndup("primary key not null",20);
                                Z_STRLEN_P(return_value) = 20;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else if (msql_field->flags&NOT_NULL_FLAG) {
                                Z_STRVAL_P(return_value) = estrndup("not null",8);
                                Z_STRLEN_P(return_value) = 8;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else if (msql_field->flags&PRI_KEY_FLAG) {
                                Z_STRVAL_P(return_value) = estrndup("primary key",11);
                                Z_STRLEN_P(return_value) = 11;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else {
                                ZVAL_FALSE(return_value);
                        }
#else
                        if ((msql_field->flags&NOT_NULL_FLAG) && (msql_field->flags&UNIQUE_FLAG)) {
                                Z_STRVAL_P(return_value) = estrndup("unique not null",15);
                                Z_STRLEN_P(return_value) = 15;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else if (msql_field->flags&NOT_NULL_FLAG) {
                                Z_STRVAL_P(return_value) = estrndup("not null",8);
                                Z_STRLEN_P(return_value) = 8;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else if (msql_field->flags&UNIQUE_FLAG) {
                                Z_STRVAL_P(return_value) = estrndup("unique",6);
                                Z_STRLEN_P(return_value) = 6;
                                Z_TYPE_P(return_value) = IS_STRING;
                        } else {
                                ZVAL_FALSE(return_value);
                        }
#endif
                        break;
                default:
                        RETURN_FALSE;
        }
}
/* }}} */

/* {{{ proto string msql_field_name(resource query, int field_index)
   Get the name of the specified field in a result */
PHP_FUNCTION(msql_field_name)
{
        php_msql_field_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_MSQL_FIELD_NAME);
}
/* }}} */

/* {{{ proto string msql_field_table(resource query, int field_offset)
   Get name of the table the specified field is in */
PHP_FUNCTION(msql_field_table)
{
        php_msql_field_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_MSQL_FIELD_TABLE);
}
/* }}} */

/* {{{ proto int msql_field_len(int query, int field_offet)
   Returns the length of the specified field */
PHP_FUNCTION(msql_field_len)
{
        php_msql_field_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_MSQL_FIELD_LEN);
}
/* }}} */

/* {{{ proto string msql_field_type(resource query, int field_offset)
   Get the type of the specified field in a result */
PHP_FUNCTION(msql_field_type)
{
        php_msql_field_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_MSQL_FIELD_TYPE);
}
/* }}} */

/* {{{ proto string msql_field_flags(resource query, int field_offset)
   Get the flags associated with the specified field in a result */
PHP_FUNCTION(msql_field_flags)
{
        php_msql_field_info(INTERNAL_FUNCTION_PARAM_PASSTHRU,PHP_MSQL_FIELD_FLAGS);
}
/* }}} */

/* {{{ proto bool msql_free_result(resource query)
   Free result memory */
PHP_FUNCTION(msql_free_result)
{
        zval *result;
        m_result *msql_result;
        m_query *msql_query;
        
        if (ZEND_NUM_ARGS()!=1 || zend_get_parameters(ht, 1, &result)==FAILURE) {
                WRONG_PARAM_COUNT;
        }

        MSQL_GET_QUERY(result);
        zend_list_delete(Z_LVAL_P(result));
        RETURN_TRUE;
}
/* }}} */

/* {{{ proto int msql_affected_rows(resource query)
   Return number of affected rows */
PHP_FUNCTION(msql_affected_rows) 
{
        zval *result;
        m_result *msql_result;
        m_query *msql_query;

        if(ZEND_NUM_ARGS() != 1 || zend_get_parameters(ht, 1, &result) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        MSQL_GET_QUERY(result);
        RETVAL_LONG(msql_query->af_rows);
}
/* }}} */

#endif

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */

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