text: /*
     +----------------------------------------------------------------------+
     | PHP Version 5                                                        |
     +----------------------------------------------------------------------+
     | Copyright (c) 1997-2010 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 293036 2010-01-03 09:23:27Z sebastian $ */
  
  
  #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
  