root/ext/sybase/php_sybase_db.c

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DEFINITIONS

This source file includes following definitions.
  1. ZEND_GET_MODULE
  2. php_sybase_error_handler
  3. php_sybase_message_handler
  4. _clean_invalid_results
  5. _free_sybase_result
  6. _close_sybase_link
  7. _close_sybase_plink
  8. PHP_MINIT_FUNCTION
  9. PHP_RINIT_FUNCTION
  10. PHP_MSHUTDOWN_FUNCTION
  11. PHP_RSHUTDOWN_FUNCTION
  12. php_sybase_do_connect
  13. php_sybase_get_default_link
  14. PHP_FUNCTION
  15. PHP_FUNCTION
  16. PHP_FUNCTION
  17. PHP_FUNCTION
  18. php_sybase_get_column_content
  19. PHP_FUNCTION
  20. PHP_FUNCTION
  21. PHP_FUNCTION
  22. PHP_FUNCTION
  23. PHP_FUNCTION
  24. PHP_FUNCTION
  25. php_sybase_fetch_hash
  26. PHP_FUNCTION
  27. PHP_FUNCTION
  28. PHP_FUNCTION
  29. php_sybase_get_field_name
  30. PHP_FUNCTION
  31. PHP_FUNCTION
  32. PHP_FUNCTION
  33. PHP_FUNCTION
  34. PHP_MINFO_FUNCTION
  35. PHP_FUNCTION
  36. 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.               |
   +----------------------------------------------------------------------+
   | Authors: Zeev Suraski <zeev@zend.com>                                |
   +----------------------------------------------------------------------+
   | php_sybase_get_column_content_with_type() based on code by:          |
   |                     Muhammad A Muquit <MA_Muquit@fccc.edu>           |
   |                     Rasmus Lerdorf <rasmus@lerdorf.on.ca>            |
   +----------------------------------------------------------------------+
 */
 
/* $Id: php_sybase_db.c,v 1.66.2.5.2.9 2007/12/31 07:20:13 sebastian Exp $ */


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

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

#if HAVE_SYBASE

#include <sybfront.h>
#include <sybdb.h>
#include <syberror.h>

#if BROKEN_SYBASE_PCONNECTS
#include "http_log.h"
#endif

/* Moved these structures/defines into the .c file (or into a *private* header),
   because leaving them in php_sybase_db.h caused namespace pollution in
   main/internal_functions.c. */

#define coltype(j) dbcoltype(sybase_ptr->link,j)
#define intcol(i) ((int) *(DBINT *) dbdata(sybase_ptr->link,i))
#define smallintcol(i) ((int) *(DBSMALLINT *) dbdata(sybase_ptr->link,i))
#define tinyintcol(i) ((int) *(DBTINYINT *) dbdata(sybase_ptr->link,i))
#define anyintcol(j) (coltype(j)==SYBINT4?intcol(j):(coltype(j)==SYBINT2?smallintcol(j):tinyintcol(j)))
#define charcol(i) ((DBCHAR *) dbdata(sybase_ptr->link,i))
#define floatcol(i) ((float) *(DBFLT8 *) dbdata(sybase_ptr->link,i))

typedef struct sybase_link_struct sybase_link;

struct sybase_link_struct {
        LOGINREC *login;
        DBPROCESS *link;
        int valid;
};

#define SYBASE_ROWS_BLOCK 128

typedef struct {
        char *name,*column_source;
        int max_length, numeric;
        int type;
} sybase_field;

typedef struct {
        zval ***data;
        sybase_field *fields;
        sybase_link *sybase_ptr;
        int cur_row,cur_field;
        int num_rows,num_fields;
} sybase_result;


zend_function_entry sybase_functions[] = {
        PHP_FE(sybase_connect,                  NULL)
        PHP_FE(sybase_pconnect,                 NULL)
        PHP_FE(sybase_close,                    NULL)
        PHP_FE(sybase_select_db,                NULL)
        PHP_FE(sybase_query,                    NULL)
        PHP_FE(sybase_free_result,              NULL)
        PHP_FE(sybase_get_last_message, NULL)
        PHP_FE(sybase_num_rows,                 NULL)
        PHP_FE(sybase_num_fields,               NULL)
        PHP_FE(sybase_fetch_row,                NULL)
        PHP_FE(sybase_fetch_array,              NULL)
        PHP_FE(sybase_fetch_object,             NULL)
        PHP_FE(sybase_data_seek,                NULL)
        PHP_FE(sybase_fetch_field,              NULL)
        PHP_FE(sybase_field_seek,               NULL)
        PHP_FE(sybase_result,                   NULL)
        PHP_FE(sybase_affected_rows,            NULL)
        PHP_FE(sybase_min_error_severity,       NULL)
        PHP_FE(sybase_min_message_severity,     NULL)

#if !defined(PHP_WIN32) && !defined(HAVE_MSSQL)
        PHP_FALIAS(mssql_connect,               sybase_connect,                 NULL)
        PHP_FALIAS(mssql_pconnect,              sybase_pconnect,                NULL)
        PHP_FALIAS(mssql_close,                 sybase_close,                   NULL)
        PHP_FALIAS(mssql_select_db,             sybase_select_db,               NULL)
        PHP_FALIAS(mssql_query,                 sybase_query,                   NULL)
        PHP_FALIAS(mssql_free_result,   sybase_free_result,             NULL)
        PHP_FALIAS(mssql_get_last_message,      sybase_get_last_message,        NULL)
        PHP_FALIAS(mssql_num_rows,              sybase_num_rows,                NULL)
        PHP_FALIAS(mssql_num_fields,    sybase_num_fields,              NULL)
        PHP_FALIAS(mssql_fetch_row,             sybase_fetch_row,               NULL)
        PHP_FALIAS(mssql_fetch_array,   sybase_fetch_array,             NULL)
        PHP_FALIAS(mssql_fetch_object,  sybase_fetch_object,    NULL)
        PHP_FALIAS(mssql_data_seek,             sybase_data_seek,               NULL)
        PHP_FALIAS(mssql_fetch_field,   sybase_fetch_field,             NULL)
        PHP_FALIAS(mssql_field_seek,    sybase_field_seek,              NULL)
        PHP_FALIAS(mssql_result,                sybase_result,                  NULL)
        PHP_FALIAS(mssql_affected_rows,         sybase_affected_rows,                   NULL)
        PHP_FALIAS(mssql_min_error_severity,    sybase_min_error_severity,              NULL)
        PHP_FALIAS(mssql_min_message_severity,  sybase_min_message_severity,    NULL)
#endif
        {NULL, NULL, NULL}
};

zend_module_entry sybase_module_entry = {
        STANDARD_MODULE_HEADER,
        "sybase", sybase_functions, PHP_MINIT(sybase), PHP_MSHUTDOWN(sybase), PHP_RINIT(sybase), PHP_RSHUTDOWN(sybase), PHP_MINFO(sybase), NO_VERSION_YET, STANDARD_MODULE_PROPERTIES
};

#ifdef COMPILE_DL_SYBASE
ZEND_GET_MODULE(sybase)
#endif

THREAD_LS sybase_module php_sybase_module;


#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 void php_sybase_get_column_content(sybase_link *sybase_ptr,int offset,zval **result_ptr, int column_type);

/* error handler */
static int php_sybase_error_handler(DBPROCESS *dbproc,int severity,int dberr,
                                                                                int oserr,char *dberrstr,char *oserrstr)
{
        if (severity >= php_sybase_module.min_error_severity) {
                TSRMLS_FETCH();
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase error:  %s (severity %d)",dberrstr,severity);
        }
        return INT_CANCEL;  
}

/* message handler */
static int php_sybase_message_handler(DBPROCESS *dbproc,DBINT msgno,int msgstate,
                                                                                int severity,char *msgtext,char *srvname,
                                                                                char *procname,DBUSMALLINT line)
{
        if (severity >= php_sybase_module.min_message_severity) {
                TSRMLS_FETCH();
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Sybase message:  %s (severity %d)",msgtext,severity);
        }
        STR_FREE(php_sybase_module.server_message);
        php_sybase_module.server_message = estrdup(msgtext);
        return 0;
}


static int _clean_invalid_results(zend_rsrc_list_entry *le TSRMLS_DC)
{
        if (Z_TYPE_P(le) == php_sybase_module.le_result) {
                sybase_link *sybase_ptr = ((sybase_result *) le->ptr)->sybase_ptr;
                
                if (!sybase_ptr->valid) {
                        return 1;
                }
        }
        return 0;
}


static void _free_sybase_result(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        sybase_result *result = (sybase_result *)rsrc->ptr;
        int i,j;
        
        if (result->data) {
                for (i=0; i<result->num_rows; i++) {
                        for (j=0; j<result->num_fields; j++) {
                                zval_ptr_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);
        }
        efree(result);
}


static void _close_sybase_link(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        sybase_link *sybase_ptr = (sybase_link *)rsrc->ptr;

        sybase_ptr->valid = 0;

    /* 
          this can cause crashes in the current model.
      if the resource gets destroyed via destroy_resource_list() resource_list
      will *not* be in a consistent state. thies@thieso.net
    */

        zend_hash_apply(&EG(regular_list), (apply_func_t) _clean_invalid_results TSRMLS_CC);
        dbclose(sybase_ptr->link);
        dbloginfree(sybase_ptr->login);
        efree(sybase_ptr);
        php_sybase_module.num_links--;
}


static void _close_sybase_plink(zend_rsrc_list_entry *rsrc TSRMLS_DC)
{
        sybase_link *sybase_ptr = (sybase_link *)rsrc->ptr;

        dbclose(sybase_ptr->link);
        dbloginfree(sybase_ptr->login);
        free(sybase_ptr);
        php_sybase_module.num_persistent--;
        php_sybase_module.num_links--;
}


PHP_MINIT_FUNCTION(sybase)
{
        char *interface_file;

        if (dbinit()==FAIL) {
                return FAILURE;
        }
        dberrhandle((EHANDLEFUNC) php_sybase_error_handler);
        dbmsghandle((MHANDLEFUNC) php_sybase_message_handler);

        if (cfg_get_string("sybase.interface_file",&interface_file)==SUCCESS) {
                dbsetifile(interface_file);
        }
        if (cfg_get_long("sybase.allow_persistent",&php_sybase_module.allow_persistent)==FAILURE) {
                php_sybase_module.allow_persistent=1;
        }
        if (cfg_get_long("sybase.max_persistent",&php_sybase_module.max_persistent)==FAILURE) {
                php_sybase_module.max_persistent=-1;
        }
        if (cfg_get_long("sybase.max_links",&php_sybase_module.max_links)==FAILURE) {
                php_sybase_module.max_links=-1;
        }
        if (cfg_get_long("sybase.min_error_severity",&php_sybase_module.cfg_min_error_severity)==FAILURE) {
                php_sybase_module.cfg_min_error_severity=10;
        }
        if (cfg_get_long("sybase.min_message_severity",&php_sybase_module.cfg_min_message_severity)==FAILURE) {
                php_sybase_module.cfg_min_message_severity=10;
        }
        if (cfg_get_long("sybase.compatability_mode",&php_sybase_module.compatability_mode)==FAILURE) {
                php_sybase_module.compatability_mode = 0;
        }
        
        php_sybase_module.num_persistent=0;
        php_sybase_module.le_link = zend_register_list_destructors_ex(_close_sybase_link, NULL, "sybase-db link", module_number);
        php_sybase_module.le_plink = zend_register_list_destructors_ex(NULL, _close_sybase_plink, "sybase-db link persistent", module_number);
        php_sybase_module.le_result = zend_register_list_destructors_ex(_free_sybase_result, NULL, "sybase-db result", module_number);
        
        return SUCCESS;
}


PHP_RINIT_FUNCTION(sybase)
{
        php_sybase_module.default_link=-1;
        php_sybase_module.num_links = php_sybase_module.num_persistent;
        php_sybase_module.appname = estrndup("PHP " PHP_VERSION, sizeof("PHP " PHP_VERSION));
        php_sybase_module.server_message = STR_EMPTY_ALLOC();
        php_sybase_module.min_error_severity = php_sybase_module.cfg_min_error_severity;
        php_sybase_module.min_message_severity = php_sybase_module.cfg_min_message_severity;
        return SUCCESS;
}

PHP_MSHUTDOWN_FUNCTION(sybase)
{
        dbexit();
        return SUCCESS;
}

PHP_RSHUTDOWN_FUNCTION(sybase)
{
        efree(php_sybase_module.appname);
        php_sybase_module.appname = NULL;
        STR_FREE(php_sybase_module.server_message);
        php_sybase_module.server_message = NULL;
        return SUCCESS;
}

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;
        sybase_link sybase,*sybase_ptr;

        switch(ZEND_NUM_ARGS()) {
                case 0: /* defaults */
                        hashed_details_length=6+3;
                        hashed_details = (char *) emalloc(hashed_details_length+1);
                        strcpy(hashed_details,"sybase___");
                        break;
                case 1: {
                                zval **yyhost;
                                
                                if (zend_get_parameters_ex(1, &yyhost) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string_ex(yyhost);
                                host = Z_STRVAL_PP(yyhost);
                                hashed_details_length = spprintf(&hashed_details, 0, "sybase_%s____", Z_STRVAL_PP(yyhost));
                        }
                        break;
                case 2: {
                                zval **yyhost, **yyuser;
                                
                                if (zend_get_parameters_ex(2, &yyhost, &yyuser) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string_ex(yyhost);
                                convert_to_string_ex(yyuser);
                                host = Z_STRVAL_PP(yyhost);
                                user = Z_STRVAL_PP(yyuser);
                                hashed_details_length = spprintf(&hashed_details, 0, "sybase_%s_%s___", Z_STRVAL_PP(yyhost), Z_STRVAL_PP(yyuser));
                        }
                        break;
                case 3: {
                                zval **yyhost, **yyuser,**yypasswd;
                        
                                if (zend_get_parameters_ex(3, &yyhost, &yyuser, &yypasswd) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string_ex(yyhost);
                                convert_to_string_ex(yyuser);
                                convert_to_string_ex(yypasswd);
                                host = Z_STRVAL_PP(yyhost);
                                user = Z_STRVAL_PP(yyuser);
                                passwd = Z_STRVAL_PP(yypasswd);
                                hashed_details_length = spprintf(&hashed_details, 0, "sybase_%s_%s_%s__", Z_STRVAL_PP(yyhost), Z_STRVAL_PP(yyuser), Z_STRVAL_PP(yypasswd));
                        }
                        break;
                case 4: {
                                zval **yyhost, **yyuser, **yypasswd, **yycharset;

                                if (zend_get_parameters_ex(4, &yyhost, &yyuser, &yypasswd, &yycharset) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string_ex(yyhost);
                                convert_to_string_ex(yyuser);
                                convert_to_string_ex(yypasswd);
                                convert_to_string_ex(yycharset);
                                host = Z_STRVAL_PP(yyhost);
                                user = Z_STRVAL_PP(yyuser);
                                passwd = Z_STRVAL_PP(yypasswd);
                                charset = Z_STRVAL_PP(yycharset);
                                hashed_details_length = spprintf(&hashed_details, 0, "sybase_%s_%s_%s_%s_", Z_STRVAL_PP(yyhost), Z_STRVAL_PP(yyuser), Z_STRVAL_PP(yypasswd), Z_STRVAL_PP(yycharset));
                        }
                        break;
                case 5: {
                                zval **yyhost, **yyuser, **yypasswd, **yycharset, **yyappname;

                                if (zend_get_parameters_ex(5, &yyhost, &yyuser, &yypasswd, &yycharset, &yyappname) == FAILURE) {
                                        RETURN_FALSE;
                                }
                                convert_to_string_ex(yyhost);
                                convert_to_string_ex(yyuser);
                                convert_to_string_ex(yypasswd);
                                convert_to_string_ex(yycharset);
                                convert_to_string_ex(yyappname);
                                host = Z_STRVAL_PP(yyhost);
                                user = Z_STRVAL_PP(yyuser);
                                passwd = Z_STRVAL_PP(yypasswd);
                                charset = Z_STRVAL_PP(yycharset);
                                appname = Z_STRVAL_PP(yyappname);
                                hashed_details_length = spprintf(&hashed_details, 0, "sybase_%s_%s_%s_%s_%s", Z_STRVAL_PP(yyhost), Z_STRVAL_PP(yyuser), Z_STRVAL_PP(yypasswd), Z_STRVAL_PP(yycharset), Z_STRVAL_PP(yyappname));
                        }
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }


        /* set a DBLOGIN record */      
        if ((sybase.login=dblogin())==NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Unable to allocate login record");
                goto err;
        }
        
        if (user) {
                DBSETLUSER(sybase.login,user);
        }
        if (passwd) {
                DBSETLPWD(sybase.login,passwd);
        }
        if (charset) {
                DBSETLCHARSET(sybase.login,charset);
        }
        if (appname) {
                DBSETLAPP(sybase.login,appname);
        } else {
                DBSETLAPP(sybase.login,php_sybase_module.appname);
        }

        sybase.valid = 1;

        if (!php_sybase_module.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 (php_sybase_module.max_links!=-1 && php_sybase_module.num_links>=php_sybase_module.max_links) {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Too many open links (%d)",php_sybase_module.num_links);
                                goto err_login;
                        }
                        if (php_sybase_module.max_persistent!=-1 && php_sybase_module.num_persistent>=php_sybase_module.max_persistent) {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Too many open persistent links (%d)",php_sybase_module.num_persistent);
                                goto err_login;
                        }
                        /* create the link */
                        if ((sybase.link=PHP_SYBASE_DBOPEN(sybase.login,host))==FAIL) {
                                /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Unable to connect to server:  %s",sybase_error(sybase));*/
                                goto err_login;
                        }

                        if (dbsetopt(sybase.link,DBBUFFER,"2",-1)==FAIL) {
                                goto err_link;
                        }

                        /* hash it up */
                        sybase_ptr = (sybase_link *) malloc(sizeof(sybase_link));
                        memcpy(sybase_ptr,&sybase,sizeof(sybase_link));
                        Z_TYPE(new_le) = php_sybase_module.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) {
                                free(sybase_ptr);
                                goto err_link;
                        }
                        php_sybase_module.num_persistent++;
                        php_sybase_module.num_links++;
                } else {  /* we do */
                        if (Z_TYPE_P(le) != php_sybase_module.le_plink) {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Hashed persistent link is not a Sybase link!");
                                goto err_login;
                        }
                        
                        sybase_ptr = (sybase_link *) le->ptr;
                        /* test that the link hasn't died */
                        if (DBDEAD(sybase_ptr->link)==TRUE) {
                                if ((sybase_ptr->link=PHP_SYBASE_DBOPEN(sybase_ptr->login,host))==FAIL) {
                                        /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Link to server lost, unable to reconnect");*/
                                        zend_hash_del(&EG(persistent_list), hashed_details, hashed_details_length+1);
                                        goto err_login;
                                }
                                if (dbsetopt(sybase_ptr->link,DBBUFFER,"2",-1)==FAIL) {
                                        zend_hash_del(&EG(persistent_list), hashed_details, hashed_details_length+1);
                                        goto err_login;
                                }
                        }
                }
                Z_LVAL_P(return_value) = zend_list_insert(sybase_ptr,php_sybase_module.le_plink);
                Z_TYPE_P(return_value) = IS_LONG;
        } 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 (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) {
                                goto err_login;
                        }
                        link = (int) index_ptr->ptr;
                        ptr = zend_list_find(link,&type);   /* check if the link is still there */
                        if (ptr && (type==php_sybase_module.le_link || type==php_sybase_module.le_plink)) {
                                Z_LVAL_P(return_value) = php_sybase_module.default_link = link;
                                Z_TYPE_P(return_value) = IS_LONG;
                                efree(hashed_details);
                                dbloginfree(sybase.login);
                                return;
                        } else {
                                zend_hash_del(&EG(regular_list),hashed_details,hashed_details_length+1);
                        }
                }
                if (php_sybase_module.max_links!=-1 && php_sybase_module.num_links>=php_sybase_module.max_links) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Too many open links (%d)",php_sybase_module.num_links);
                        goto err_login;
                }
                
                if ((sybase.link=PHP_SYBASE_DBOPEN(sybase.login,host))==NULL) {
                        /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Unable to connect to server:  %s",sybase_error(sybase));*/
                        goto err_login;
                }

                if (dbsetopt(sybase.link,DBBUFFER,"2",-1)==FAIL) {
                        goto err_link;
                }
                
                /* add it to the list */
                sybase_ptr = (sybase_link *) emalloc(sizeof(sybase_link));
                memcpy(sybase_ptr,&sybase,sizeof(sybase_link));
                Z_LVAL_P(return_value) = zend_list_insert(sybase_ptr,php_sybase_module.le_link);
                Z_TYPE_P(return_value) = IS_LONG;
                
                /* 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) {
                        goto err_link;
                }
                php_sybase_module.num_links++;
        }
        efree(hashed_details);
        php_sybase_module.default_link=Z_LVAL_P(return_value);
        return;

err_link:
        dbclose(sybase.link);
err_login:
        dbloginfree(sybase.login);
err:
        efree(hashed_details);
        RETURN_FALSE;
}


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


/* {{{ proto int sybase_connect([string host [, string user [, string password [, string charset [, string appname]]]]])
   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);
}
/* }}} */

/* {{{ proto bool sybase_close([int link_id])
   Close Sybase connection */
PHP_FUNCTION(sybase_close)
{
        zval **sybase_link_index;
        int id,type;
        
        switch (ZEND_NUM_ARGS()) {
                case 0:
                        id = php_sybase_module.default_link;
                        break;
                case 1:
                        if (zend_get_parameters_ex(1, &sybase_link_index) == FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long_ex(sybase_link_index);
                        id = Z_LVAL_PP(sybase_link_index);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        zend_list_find(id,&type);
        if (type!=php_sybase_module.le_link && type!=php_sybase_module.le_plink) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase link index",id);
                RETURN_FALSE;
        }
        
        zend_list_delete(id);
        RETURN_TRUE;
}
/* }}} */
        

/* {{{ proto bool sybase_select_db(string database [, int link_id])
   Select Sybase database */
PHP_FUNCTION(sybase_select_db)
{
        zval **db, **sybase_link_index;
        int id,type;
        sybase_link  *sybase_ptr;
        
        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters_ex(1, &db) == FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_sybase_get_default_link(INTERNAL_FUNCTION_PARAM_PASSTHRU);
                        break;
                case 2:
                        if (zend_get_parameters_ex(2, &db, &sybase_link_index) == FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long_ex(sybase_link_index);
                        id = Z_LVAL_PP(sybase_link_index);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        CHECK_LINK(id);
        
        sybase_ptr = (sybase_link *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_link && type!=php_sybase_module.le_plink) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase link index",id);
                RETURN_FALSE;
        }
        
        convert_to_string_ex(db);
        
        if (dbuse(sybase_ptr->link,Z_STRVAL_PP(db))==FAIL) {
                /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Unable to select database:  %s",sybase_error(sybase));*/
                RETURN_FALSE;
        } else {
                RETURN_TRUE;
        }
}
/* }}} */
        

static void php_sybase_get_column_content(sybase_link *sybase_ptr,int offset,zval **result_ptr, int column_type)
{
        zval *result;

        ALLOC_INIT_ZVAL(result);
        *result_ptr = result;

        if (dbdatlen(sybase_ptr->link,offset) == 0) {
                ZVAL_FALSE(result);
                return;
        }

        switch (column_type)
        {
                case SYBINT2:
                case SYBINT4: { 
                        Z_LVAL_P(result) = (long) anyintcol(offset);
                        Z_TYPE_P(result) = IS_LONG;
                        break;
                }
                case SYBCHAR:
                case SYBTEXT: {
                        int length;
                        char *data = charcol(offset);

                        length=dbdatlen(sybase_ptr->link,offset);
                        while (length>0 && charcol(offset)[length-1] == ' ') { /* nuke trailing whitespace */
                                length--;
                        }
                        Z_STRVAL_P(result) = estrndup(data,length);
                        Z_STRLEN_P(result) = length;
                        Z_TYPE_P(result) = IS_STRING;
                        break;
                }
                /*case SYBFLT8:*/
                case SYBREAL: {
                        Z_DVAL_P(result) = (double) floatcol(offset);
                        Z_TYPE_P(result) = IS_DOUBLE;
                        break;
                }
                default: {
                        if (dbwillconvert(coltype(offset),SYBCHAR)) {
                                char *res_buf;
                                int res_length = dbdatlen(sybase_ptr->link,offset);
                                int src_length = res_length;
                                register char *p;
                        
                                switch (coltype(offset)) {
                                        case SYBBINARY:
                                        case SYBVARBINARY:
                                        case SYBIMAGE:
                                                res_length *= 2;
                                                break;
                                        case SYBCHAR:
                                        case SYBVARCHAR:
                                        case SYBTEXT:
                                                break;
                                        default:
                                                /* take no chances, no telling how big the result would really be */
                                                res_length += 20;
                                                break;
                                }

                                res_buf = (char *) emalloc(res_length+1);
                                memset(res_buf,' ',res_length+1);  /* XXX i'm sure there's a better way
                                                                                                          but i don't have sybase here to test
                                                                                                          991105 thies@thieso.net  */
                                dbconvert(NULL,coltype(offset),dbdata(sybase_ptr->link,offset), src_length,SYBCHAR,res_buf,res_length);
#if ilia_0              
                                /* get rid of trailing spaces */
                                p = res_buf + res_length;
                                while (p >= res_buf && (*p == ' ' || *p == '\0')) {
                                        p--;
                                }
                                *(++p) = 0; /* put a trailing NULL */
                                res_length = p - res_buf;
#endif          
                                Z_STRLEN_P(result) = res_length;
                                Z_STRVAL_P(result) = res_buf;
                                Z_TYPE_P(result) = IS_STRING;
                        } else {
                                TSRMLS_FETCH();
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  column %d has unknown data type (%d)", offset, coltype(offset));
                                ZVAL_FALSE(result);
                        }
                }
        }
}


/* {{{ proto int sybase_query(string query [, int link_id])
   Send Sybase query */
PHP_FUNCTION(sybase_query)
{
        zval **query, **sybase_link_index;
        int id,type,retvalue;
        sybase_link *sybase_ptr;
        sybase_result *result;
        int num_fields;
        int blocks_initialized=1;
        int i,j;
        int *column_types;
        RETCODE dbresults_retval;

        switch(ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters_ex(1, &query) == FAILURE) {
                                RETURN_FALSE;
                        }
                        id = php_sybase_module.default_link;
                        break;
                case 2:
                        if (zend_get_parameters_ex(2, &query, &sybase_link_index) == FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long_ex(sybase_link_index);
                        id = Z_LVAL_PP(sybase_link_index);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        sybase_ptr = (sybase_link *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_link && type!=php_sybase_module.le_plink) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase link index",id);
                RETURN_FALSE;
        }
        
        convert_to_string_ex(query);
        if (dbcmd(sybase_ptr->link,Z_STRVAL_PP(query))==FAIL) {
                /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Unable to set query");*/
                RETURN_FALSE;
        }

        if (dbsqlexec(sybase_ptr->link)==FAIL) {
                /*php_error(E_WARNING,"Sybase:  Query failed");*/
                RETURN_FALSE;
        }

        dbresults_retval = dbresults(sybase_ptr->link);
        if (dbresults_retval==FAIL) {
                /*php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Query failed");*/
                RETURN_FALSE;
        }
        
        /* The following is more or less the equivalent of mysql_store_result().
         * fetch all rows from the server into the row buffer, thus:
         * 1)  Being able to fire up another query without explicitly reading all rows
         * 2)  Having numrows accessible
         */
        
        retvalue=dbnextrow(sybase_ptr->link);
        
        if (retvalue==FAIL) {
                RETURN_FALSE;
        }

        num_fields = dbnumcols(sybase_ptr->link);
        if (num_fields<=0) {
                RETURN_TRUE;
        }
        
        column_types = (int *) safe_emalloc(sizeof(int), num_fields, 0);
        for (i=0; i<num_fields; i++) {
                column_types[i] = coltype(i+1);
        }
        
        result = (sybase_result *) emalloc(sizeof(sybase_result));
        result->data = (zval ***) safe_emalloc(sizeof(zval **), SYBASE_ROWS_BLOCK, 0);
        result->sybase_ptr = sybase_ptr;
        result->cur_field=result->cur_row=result->num_rows=0;
        result->num_fields = num_fields;

        i=0;
        while (retvalue!=FAIL && retvalue!=NO_MORE_ROWS) {
                result->num_rows++;
                if (result->num_rows > blocks_initialized*SYBASE_ROWS_BLOCK) {
                        result->data = (zval ***) safe_erealloc(result->data, SYBASE_ROWS_BLOCK*(++blocks_initialized), sizeof(zval **), 0);
                }
                result->data[i] = (zval **) safe_emalloc(sizeof(zval *), num_fields, 0);
                for (j=1; j<=num_fields; j++) {
                        php_sybase_get_column_content(sybase_ptr, j, &result->data[i][j-1], column_types[j-1]);
                        if (!php_sybase_module.compatability_mode) {
                                zval *cur_value = result->data[i][j-1];

                                convert_to_string(cur_value);
                                if (PG(magic_quotes_runtime)) {
                                        Z_STRVAL_P(cur_value) = php_addslashes(Z_STRVAL_P(cur_value), Z_STRLEN_P(cur_value), &Z_STRLEN_P(cur_value),0 TSRMLS_CC);
                                }
                        }
                }
                retvalue=dbnextrow(sybase_ptr->link);
                dbclrbuf(sybase_ptr->link,DBLASTROW(sybase_ptr->link)-1); 
                i++;
        }
        result->num_rows = DBCOUNT(sybase_ptr->link);
        
        result->fields = (sybase_field *) safe_emalloc(sizeof(sybase_field), num_fields, 0);
        j=0;
        for (i=0; i<num_fields; i++) {
                char *fname = dbcolname(sybase_ptr->link,i+1);
                char computed_buf[16];
                
                if (*fname) {
                        result->fields[i].name = estrdup(fname);
                } else {
                        if (j>0) {
                                snprintf(computed_buf,16,"computed%d",j);
                        } else {
                                strcpy(computed_buf,"computed");
                        }
                        result->fields[i].name = estrdup(computed_buf);
                        j++;
                }
                result->fields[i].max_length = dbcollen(sybase_ptr->link,i+1);
                result->fields[i].column_source = estrdup(dbcolsource(sybase_ptr->link,i+1));
                if (!result->fields[i].column_source) {
                        result->fields[i].column_source = STR_EMPTY_ALLOC();
                }
                Z_TYPE(result->fields[i]) = column_types[i];
                /* set numeric flag */
                switch (column_types[i]) {
                        case SYBINT2:
                        case SYBINT4:
                        case SYBFLT8:
                        case SYBREAL:
                                result->fields[i].numeric = 1;
                                break;
                        case SYBCHAR:
                        case SYBTEXT:
                        default:
                                result->fields[i].numeric = 0;
                                break;
                }
        }
        efree(column_types);
        Z_LVAL_P(return_value) = zend_list_insert(result,php_sybase_module.le_result);
        Z_TYPE_P(return_value) = IS_LONG;

        /**
         * mgruetzner@rw3.com -- 3-6/2003
         *
         * If you do a query that calls a stored procedure which returns
         * data AND calls raiserror to generated a user-defined error message,
         * then after retrieving the first set of results above, the call
         * to dbresults will have returned SUCCESS, instead of NO_MORE_RESULTS
         * which indicates that the message generated by raiserror is still 
         * waiting to be read.  If this is the case, then call dbresults
         * again to force the reading of the message.  This will ensure the 
         * get_last_message call will return the message properly if called
         * after mssql_query, like it should.
         *
         * One thing to note, we are assuming that no more data should follow
         * in this case--only the message will be read.  To make sure, I have
         * added a call to dbnextrow.  The assumption is that it will return
         * NO_MORE_ROWS in this case.  If the assumption is false, generate
         * a PHP error so we can debug this case.
         *
         */
        if (dbresults_retval != NO_MORE_RESULTS) {
                /* Call dbresults again to read message */
                dbresults_retval = dbresults(sybase_ptr->link);

                /* Check assumption that dbnextrow returns NO_MORE_ROWS */
                retvalue = dbnextrow(sybase_ptr->link);
                if (retvalue != NO_MORE_ROWS) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING,"Expected dbnextrow() to return NO_MORE_ROWS");
                }
        }
}
/* }}} */

                        
/* {{{ proto bool sybase_free_result(int result)
   Free result memory */
PHP_FUNCTION(sybase_free_result)
{
        zval **sybase_result_index;
        sybase_result *result;
        int type;
        
        if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &sybase_result_index) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(sybase_result_index);
        if (Z_LVAL_PP(sybase_result_index)==0) {
                RETURN_FALSE;
        }
        result = (sybase_result *) zend_list_find(Z_LVAL_PP(sybase_result_index),&type);
        
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%ld is not a Sybase result index", Z_LVAL_PP(sybase_result_index));
                RETURN_FALSE;
        }
        zend_list_delete(Z_LVAL_PP(sybase_result_index));
        RETURN_TRUE;
}
/* }}} */



/* {{{ proto string sybase_get_last_message(void)
   Returns the last message from server (over min_message_severity) */
PHP_FUNCTION(sybase_get_last_message)
{
        RETURN_STRING(php_sybase_module.server_message,1);
}
/* }}} */

/* {{{ proto int sybase_num_rows(int result)
   Get number of rows in result */
PHP_FUNCTION(sybase_num_rows)
{
        zval **result_index;
        int type,id;
        sybase_result *result;
        
        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &result_index) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(result_index);
        id = Z_LVAL_PP(result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }       
        
        Z_LVAL_P(return_value) = result->num_rows;
        Z_TYPE_P(return_value) = IS_LONG;
}
/* }}} */

/* {{{ proto int sybase_num_fields(int result)
   Get number of fields in result */
PHP_FUNCTION(sybase_num_fields)
{
        zval **result_index;
        int type,id;
        sybase_result *result;
        
        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &result_index) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(result_index);
        id = Z_LVAL_PP(result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }       
        
        Z_LVAL_P(return_value) = result->num_fields;
        Z_TYPE_P(return_value) = IS_LONG;
}
/* }}} */

/* {{{ proto array sybase_fetch_row(int result)
   Get row as enumerated array */
PHP_FUNCTION(sybase_fetch_row)
{
        zval **sybase_result_index;
        int type,i,id;
        sybase_result *result;
        zval *field_content;

        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &sybase_result_index)==FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(sybase_result_index);
        id = Z_LVAL_PP(sybase_result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }
        
        if (result->cur_row >= result->num_rows) {
                RETURN_FALSE;
        }
        
        array_init(return_value);
        for (i=0; i<result->num_fields; i++) {
                ZVAL_ADDREF(result->data[result->cur_row][i]);
                zend_hash_index_update(Z_ARRVAL_P(return_value), i, (void *) &result->data[result->cur_row][i], sizeof(zval *), NULL);
        }
        result->cur_row++;
}
/* }}} */


static void php_sybase_fetch_hash(INTERNAL_FUNCTION_PARAMETERS)
{
        zval **sybase_result_index;
        sybase_result *result;
        int type;
        int i;
        
        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &sybase_result_index) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(sybase_result_index);
        result = (sybase_result *) zend_list_find(Z_LVAL_PP(sybase_result_index),&type);
        
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%ld is not a Sybase result index", Z_LVAL_PP(sybase_result_index));
                RETURN_FALSE;
        }
        
        if (result->cur_row >= result->num_rows) {
                RETURN_FALSE;
        }
        
        array_init(return_value);
        
        for (i=0; i<result->num_fields; i++) {
                ZVAL_ADDREF(result->data[result->cur_row][i]);
                zend_hash_index_update(Z_ARRVAL_P(return_value), i, (void *) &result->data[result->cur_row][i], sizeof(zval *), NULL);
                ZVAL_ADDREF(result->data[result->cur_row][i]);
                zend_hash_update(Z_ARRVAL_P(return_value), result->fields[i].name, strlen(result->fields[i].name)+1, (void *) &result->data[result->cur_row][i], sizeof(zval  *), NULL);
        }
        result->cur_row++;
}


/* {{{ proto object sybase_fetch_object(int result)
   Fetch row as object */
PHP_FUNCTION(sybase_fetch_object)
{
        php_sybase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU);
        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 sybase_fetch_array(int result)
   Fetch row as array */
PHP_FUNCTION(sybase_fetch_array)
{
        php_sybase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU);
}
/* }}} */

/* {{{ proto bool sybase_data_seek(int result, int offset)
   Move internal row pointer */
PHP_FUNCTION(sybase_data_seek)
{
        zval **sybase_result_index, **offset;
        int type,id;
        sybase_result *result;

        if (ZEND_NUM_ARGS()!=2 || zend_get_parameters_ex(2, &sybase_result_index, &offset) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(sybase_result_index);
        id = Z_LVAL_PP(sybase_result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }

        convert_to_long_ex(offset);
        if (Z_LVAL_PP(offset)<0 || Z_LVAL_PP(offset)>=result->num_rows) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Bad row offset");
                RETURN_FALSE;
        }
        
        result->cur_row = Z_LVAL_PP(offset);
        RETURN_TRUE;
}
/* }}} */

static char *php_sybase_get_field_name(int type)
{
        switch (type) {
                case SYBBINARY:
                case SYBVARBINARY:
                        return "blob";
                        break;
                case SYBCHAR:
                case SYBVARCHAR:
                case SYBTEXT:
                        return "string";
                case SYBDATETIME:
                case SYBDATETIME4:
                case SYBDATETIMN:
                        return "datetime";
                        break;
                case SYBDECIMAL:
                case SYBFLT8:
                case SYBFLTN:
                case SYBREAL:
                case SYBNUMERIC:
                        return "real";
                        break;
                case SYBINT1:
                case SYBINT2:
                case SYBINT4:
                case SYBINTN:
                        return "int";
                        break;
                case SYBMONEY:
                case SYBMONEY4:
                case SYBMONEYN:
                        return "money";
                        break;
                case SYBBIT:
                        return "bit";
                        break;
                case SYBIMAGE:
                        return "image";
                        break;
                default:
                        return "unknown";
                        break;
        }
}


/* {{{ proto object sybase_fetch_field(int result [, int offset])
   Get field information */
PHP_FUNCTION(sybase_fetch_field)
{
        zval **sybase_result_index, **offset;
        int type,id,field_offset;
        sybase_result *result;

        switch (ZEND_NUM_ARGS()) {
                case 1:
                        if (zend_get_parameters_ex(1, &sybase_result_index) == FAILURE) {
                                RETURN_FALSE;
                        }
                        field_offset=-1;
                        break;
                case 2:
                        if (zend_get_parameters_ex(2, &sybase_result_index, &offset) == FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long_ex(offset);
                        field_offset = Z_LVAL_PP(offset);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        convert_to_long_ex(sybase_result_index);
        id = Z_LVAL_PP(sybase_result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }
        
        if (field_offset==-1) {
                field_offset = result->cur_field;
                result->cur_field++;
        }
        
        if (field_offset<0 || field_offset >= result->num_fields) {
                if (ZEND_NUM_ARGS()==2) { /* field specified explicitly */
                        php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Bad column offset");
                }
                RETURN_FALSE;
        }

        object_init(return_value);

        add_property_string(return_value, "name",result->fields[field_offset].name, 1);
        add_property_long(return_value, "max_length",result->fields[field_offset].max_length);
        add_property_string(return_value, "column_source",result->fields[field_offset].column_source, 1);
        add_property_long(return_value, "numeric", result->fields[field_offset].numeric);
        add_property_string(return_value, "type", php_sybase_get_field_name(Z_TYPE(result->fields[field_offset])), 1);
}
/* }}} */

/* {{{ proto bool sybase_field_seek(int result, int offset)
   Set field offset */
PHP_FUNCTION(sybase_field_seek)
{
        zval **sybase_result_index, **offset;
        int type,id,field_offset;
        sybase_result *result;

        if (ZEND_NUM_ARGS() !=2 || zend_get_parameters_ex(2, &sybase_result_index, &offset) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        
        convert_to_long_ex(sybase_result_index);
        id = Z_LVAL_PP(sybase_result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }
        
        convert_to_long_ex(offset);
        field_offset = Z_LVAL_PP(offset);
        
        if (field_offset<0 || field_offset >= result->num_fields) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Bad column offset");
                RETURN_FALSE;
        }

        result->cur_field = field_offset;
        RETURN_TRUE;
}
/* }}} */

/* {{{ proto string sybase_result(int result, int row, mixed field)
   Get result data */
PHP_FUNCTION(sybase_result)
{
        zval **row, **field, **sybase_result_index;
        int id,type,field_offset=0;
        sybase_result *result;
        

        if (ZEND_NUM_ARGS() !=3 || zend_get_parameters_ex(3, &sybase_result_index, &row, &field) == FAILURE) {
                WRONG_PARAM_COUNT;
        }

        convert_to_long_ex(sybase_result_index);
        id = Z_LVAL_PP(sybase_result_index);
        
        result = (sybase_result *) zend_list_find(id,&type);
        if (type!=php_sybase_module.le_result) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase result index",id);
                RETURN_FALSE;
        }
        
        convert_to_long_ex(row);
        if (Z_LVAL_PP(row)<0 || Z_LVAL_PP(row)>=result->num_rows) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Bad row offset (%ld)", Z_LVAL_PP(row));
                RETURN_FALSE;
        }

        switch(Z_TYPE_PP(field)) {
                case IS_STRING: {
                        int i;

                        for (i=0; i<result->num_fields; i++) {
                                if (!strcasecmp(result->fields[i].name,Z_STRVAL_PP(field))) {
                                        field_offset = i;
                                        break;
                                }
                        }
                        if (i>=result->num_fields) { /* no match found */
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  %s field not found in result",Z_STRVAL_PP(field));
                                RETURN_FALSE;
                        }
                        break;
                }
                default:
                        convert_to_long_ex(field);
                        field_offset = Z_LVAL_PP(field);
                        if (field_offset<0 || field_offset>=result->num_fields) {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING,"Sybase:  Bad column offset specified");
                                RETURN_FALSE;
                        }
                        break;
        }

        *return_value = *result->data[Z_LVAL_PP(row)][field_offset];
        zval_copy_ctor(return_value);
}
/* }}} */


/* {{{ proto int sybase_affected_rows([int link_id])
    Get number of affected rows in last query */
PHP_FUNCTION(sybase_affected_rows)
{
        zval **sybase_link_index = NULL;
        sybase_link *sybase_ptr = NULL;
        int id                  = 0;
        int type                = 0;

        switch(ZEND_NUM_ARGS()) {
                case 0:
                        id = php_sybase_module.default_link;
                        break;
                case 1:
                        if (zend_get_parameters_ex(1, &sybase_link_index) == FAILURE) {
                                RETURN_FALSE;
                        }
                        convert_to_long_ex(sybase_link_index);
                        id = Z_LVAL_PP(sybase_link_index);
                        break;
                default:
                        WRONG_PARAM_COUNT;
                        break;
        }
        
        sybase_ptr = (sybase_link *)zend_list_find(id, &type);

        if(type != php_sybase_module.le_link && type != php_sybase_module.le_plink) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING,"%d is not a Sybase link index",id);
                RETURN_FALSE;
        }

        Z_LVAL_P(return_value) = DBCOUNT(sybase_ptr->link);
        Z_TYPE_P(return_value) = IS_LONG;
}
 

PHP_MINFO_FUNCTION(sybase)
{
        char maxp[32], maxl[32];
        
        if (php_sybase_module.max_persistent==-1) {
                snprintf(maxp, 31, "%ld/unlimited", php_sybase_module.num_persistent );
        } else {
                snprintf(maxp, 31, "%ld/%ld", php_sybase_module.num_persistent, php_sybase_module.max_persistent);
        }
        maxp[31]=0;

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

        php_info_print_table_start();
        php_info_print_table_row(2, "Sybase Support", "enabled");
        php_info_print_table_row(2, "Allow Persistent Links", (php_sybase_module.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_row(2, "Application Name", php_sybase_module.appname );
        php_info_print_table_row(2, "Client API Version", dbversion() );
        php_info_print_table_end();

}


/* {{{ proto void sybase_min_error_severity(int severity)
   Sets the minimum error severity */
PHP_FUNCTION(sybase_min_error_severity)
{
        zval **severity;
        
        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &severity) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        convert_to_long_ex(severity);
        php_sybase_module.min_error_severity = Z_LVAL_PP(severity);
}
/* }}} */

/* {{{ proto void sybase_min_message_severity(int severity)
   Sets the minimum message severity */
PHP_FUNCTION(sybase_min_message_severity)
{
        zval **severity;
        
        if (ZEND_NUM_ARGS() !=1 || zend_get_parameters_ex(1, &severity) == FAILURE) {
                WRONG_PARAM_COUNT;
        }
        convert_to_long_ex(severity);
        php_sybase_module.min_message_severity = Z_LVAL_PP(severity);
}
/* }}} */

#endif

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