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php-src/ext/interbase/ibase_query.c
Xinchen Hui 47c9027772 Bump year
2014-01-03 11:06:16 +08:00

2103 lines
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 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: Ard Biesheuvel <a.k.biesheuvel@its.tudelft.nl> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#if HAVE_IBASE
#include "ext/standard/php_standard.h"
#include "php_interbase.h"
#include "php_ibase_includes.h"
#define ISC_LONG_MIN INT_MIN
#define ISC_LONG_MAX INT_MAX
#define QUERY_RESULT 1
#define EXECUTE_RESULT 2
#define FETCH_ROW 1
#define FETCH_ARRAY 2
typedef struct {
ISC_ARRAY_DESC ar_desc;
ISC_LONG ar_size; /* size of entire array in bytes */
unsigned short el_type, el_size;
} ibase_array;
typedef struct {
ibase_db_link *link;
ibase_trans *trans;
struct _ib_query *query;
isc_stmt_handle stmt;
unsigned short type;
unsigned char has_more_rows, statement_type;
XSQLDA *out_sqlda;
ibase_array out_array[1]; /* last member */
} ibase_result;
typedef struct _ib_query {
ibase_db_link *link;
ibase_trans *trans;
ibase_result *result;
int result_res_id;
isc_stmt_handle stmt;
XSQLDA *in_sqlda, *out_sqlda;
ibase_array *in_array, *out_array;
unsigned short in_array_cnt, out_array_cnt;
unsigned short dialect;
char statement_type;
char *query;
long trans_res_id;
} ibase_query;
typedef struct {
unsigned short vary_length;
char vary_string[1];
} IBVARY;
/* sql variables union
* used for convert and binding input variables
*/
typedef struct {
union {
short sval;
float fval;
ISC_LONG lval;
ISC_QUAD qval;
ISC_TIMESTAMP tsval;
ISC_DATE dtval;
ISC_TIME tmval;
} val;
short sqlind;
} BIND_BUF;
static int le_result, le_query;
#define LE_RESULT "Firebird/InterBase result"
#define LE_QUERY "Firebird/InterBase query"
static void _php_ibase_free_xsqlda(XSQLDA *sqlda) /* {{{ */
{
int i;
XSQLVAR *var;
IBDEBUG("Free XSQLDA?");
if (sqlda) {
IBDEBUG("Freeing XSQLDA...");
var = sqlda->sqlvar;
for (i = 0; i < sqlda->sqld; i++, var++) {
efree(var->sqldata);
if (var->sqlind) {
efree(var->sqlind);
}
}
efree(sqlda);
}
}
/* }}} */
static void _php_ibase_free_stmt_handle(ibase_db_link *link, isc_stmt_handle stmt TSRMLS_DC) /* {{{ */
{
static char info[] = { isc_info_base_level, isc_info_end };
if (stmt) {
char res_buf[8];
IBDEBUG("Dropping statement handle (free_stmt_handle)...");
/* Only free statement if db-connection is still open */
if (SUCCESS == isc_database_info(IB_STATUS, &link->handle,
sizeof(info), info, sizeof(res_buf), res_buf)) {
if (isc_dsql_free_statement(IB_STATUS, &stmt, DSQL_drop)) {
_php_ibase_error(TSRMLS_C);
}
}
}
}
/* }}} */
static void _php_ibase_free_result(zend_rsrc_list_entry *rsrc TSRMLS_DC) /* {{{ */
{
ibase_result *ib_result = (ibase_result *) rsrc->ptr;
IBDEBUG("Freeing result by dtor...");
if (ib_result) {
_php_ibase_free_xsqlda(ib_result->out_sqlda);
if (ib_result->query != NULL) {
IBDEBUG("query still valid; don't drop statement handle");
ib_result->query->result = NULL; /* Indicate to query, that result is released */
} else {
_php_ibase_free_stmt_handle(ib_result->link, ib_result->stmt TSRMLS_CC);
}
efree(ib_result);
}
}
/* }}} */
static void _php_ibase_free_query(ibase_query *ib_query TSRMLS_DC) /* {{{ */
{
IBDEBUG("Freeing query...");
if (ib_query->in_sqlda) {
efree(ib_query->in_sqlda);
}
if (ib_query->out_sqlda) {
efree(ib_query->out_sqlda);
}
if (ib_query->result != NULL) {
IBDEBUG("result still valid; don't drop statement handle");
ib_query->result->query = NULL; /* Indicate to result, that query is released */
} else {
_php_ibase_free_stmt_handle(ib_query->link, ib_query->stmt TSRMLS_CC);
}
if (ib_query->in_array) {
efree(ib_query->in_array);
}
if (ib_query->out_array) {
efree(ib_query->out_array);
}
if (ib_query->query) {
efree(ib_query->query);
}
}
/* }}} */
static void php_ibase_free_query_rsrc(zend_rsrc_list_entry *rsrc TSRMLS_DC) /* {{{ */
{
ibase_query *ib_query = (ibase_query *)rsrc->ptr;
if (ib_query != NULL) {
IBDEBUG("Preparing to free query by dtor...");
_php_ibase_free_query(ib_query TSRMLS_CC);
efree(ib_query);
}
}
/* }}} */
void php_ibase_query_minit(INIT_FUNC_ARGS) /* {{{ */
{
le_result = zend_register_list_destructors_ex(_php_ibase_free_result, NULL,
"interbase result", module_number);
le_query = zend_register_list_destructors_ex(php_ibase_free_query_rsrc, NULL,
"interbase query", module_number);
}
/* }}} */
static int _php_ibase_alloc_array(ibase_array **ib_arrayp, XSQLDA *sqlda, /* {{{ */
isc_db_handle link, isc_tr_handle trans, unsigned short *array_cnt TSRMLS_DC)
{
unsigned short i, n;
ibase_array *ar;
/* first check if we have any arrays at all */
for (i = *array_cnt = 0; i < sqlda->sqld; ++i) {
if ((sqlda->sqlvar[i].sqltype & ~1) == SQL_ARRAY) {
++*array_cnt;
}
}
if (! *array_cnt) return SUCCESS;
ar = safe_emalloc(sizeof(ibase_array), *array_cnt, 0);
for (i = n = 0; i < sqlda->sqld; ++i) {
unsigned short dim;
unsigned long ar_size = 1;
XSQLVAR *var = &sqlda->sqlvar[i];
if ((var->sqltype & ~1) == SQL_ARRAY) {
ibase_array *a = &ar[n++];
ISC_ARRAY_DESC *ar_desc = &a->ar_desc;
if (isc_array_lookup_bounds(IB_STATUS, &link, &trans, var->relname,
var->sqlname, ar_desc)) {
_php_ibase_error(TSRMLS_C);
efree(ar);
return FAILURE;
}
switch (ar_desc->array_desc_dtype) {
case blr_text:
case blr_text2:
a->el_type = SQL_TEXT;
a->el_size = ar_desc->array_desc_length;
break;
case blr_short:
a->el_type = SQL_SHORT;
a->el_size = sizeof(short);
break;
case blr_long:
a->el_type = SQL_LONG;
a->el_size = sizeof(ISC_LONG);
break;
case blr_float:
a->el_type = SQL_FLOAT;
a->el_size = sizeof(float);
break;
case blr_double:
a->el_type = SQL_DOUBLE;
a->el_size = sizeof(double);
break;
case blr_int64:
a->el_type = SQL_INT64;
a->el_size = sizeof(ISC_INT64);
break;
case blr_timestamp:
a->el_type = SQL_TIMESTAMP;
a->el_size = sizeof(ISC_TIMESTAMP);
break;
case blr_sql_date:
a->el_type = SQL_TYPE_DATE;
a->el_size = sizeof(ISC_DATE);
break;
case blr_sql_time:
a->el_type = SQL_TYPE_TIME;
a->el_size = sizeof(ISC_TIME);
break;
case blr_varying:
case blr_varying2:
/**
* IB has a strange way of handling VARCHAR arrays. It doesn't store
* the length in the first short, as with VARCHAR fields. It does,
* however, expect the extra short to be allocated for each element.
*/
a->el_type = SQL_TEXT;
a->el_size = ar_desc->array_desc_length + sizeof(short);
break;
case blr_quad:
case blr_blob_id:
case blr_cstring:
case blr_cstring2:
/**
* These types are mentioned as array types in the manual, but I
* wouldn't know how to create an array field with any of these
* types. I assume these types are not applicable to arrays, and
* were mentioned erroneously.
*/
default:
_php_ibase_module_error("Unsupported array type %d in relation '%s' column '%s'"
TSRMLS_CC, ar_desc->array_desc_dtype, var->relname, var->sqlname);
efree(ar);
return FAILURE;
} /* switch array_desc_type */
/* calculate elements count */
for (dim = 0; dim < ar_desc->array_desc_dimensions; dim++) {
ar_size *= 1 + ar_desc->array_desc_bounds[dim].array_bound_upper
-ar_desc->array_desc_bounds[dim].array_bound_lower;
}
a->ar_size = a->el_size * ar_size;
} /* if SQL_ARRAY */
} /* for column */
*ib_arrayp = ar;
return SUCCESS;
}
/* }}} */
/* allocate and prepare query */
static int _php_ibase_alloc_query(ibase_query *ib_query, ibase_db_link *link, /* {{{ */
ibase_trans *trans, char *query, unsigned short dialect, int trans_res_id TSRMLS_DC)
{
static char info_type[] = {isc_info_sql_stmt_type};
char result[8];
/* Return FAILURE, if querystring is empty */
if (*query == '\0') {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Querystring empty.");
return FAILURE;
}
ib_query->link = link;
ib_query->trans = trans;
ib_query->result_res_id = 0;
ib_query->result = NULL;
ib_query->stmt = NULL;
ib_query->in_array = NULL;
ib_query->out_array = NULL;
ib_query->dialect = dialect;
ib_query->query = estrdup(query);
ib_query->trans_res_id = trans_res_id;
ib_query->out_sqlda = NULL;
ib_query->in_sqlda = NULL;
if (isc_dsql_allocate_statement(IB_STATUS, &link->handle, &ib_query->stmt)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
ib_query->out_sqlda = (XSQLDA *) emalloc(XSQLDA_LENGTH(1));
ib_query->out_sqlda->sqln = 1;
ib_query->out_sqlda->version = SQLDA_CURRENT_VERSION;
if (isc_dsql_prepare(IB_STATUS, &ib_query->trans->handle, &ib_query->stmt,
0, query, dialect, ib_query->out_sqlda)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
/* find out what kind of statement was prepared */
if (isc_dsql_sql_info(IB_STATUS, &ib_query->stmt, sizeof(info_type),
info_type, sizeof(result), result)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
ib_query->statement_type = result[3];
/* not enough output variables ? */
if (ib_query->out_sqlda->sqld > ib_query->out_sqlda->sqln) {
ib_query->out_sqlda = erealloc(ib_query->out_sqlda, XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
ib_query->out_sqlda->sqln = ib_query->out_sqlda->sqld;
ib_query->out_sqlda->version = SQLDA_CURRENT_VERSION;
if (isc_dsql_describe(IB_STATUS, &ib_query->stmt, SQLDA_CURRENT_VERSION, ib_query->out_sqlda)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
}
/* maybe have input placeholders? */
ib_query->in_sqlda = emalloc(XSQLDA_LENGTH(1));
ib_query->in_sqlda->sqln = 1;
ib_query->in_sqlda->version = SQLDA_CURRENT_VERSION;
if (isc_dsql_describe_bind(IB_STATUS, &ib_query->stmt, SQLDA_CURRENT_VERSION, ib_query->in_sqlda)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
/* not enough input variables ? */
if (ib_query->in_sqlda->sqln < ib_query->in_sqlda->sqld) {
ib_query->in_sqlda = erealloc(ib_query->in_sqlda, XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
ib_query->in_sqlda->sqln = ib_query->in_sqlda->sqld;
ib_query->in_sqlda->version = SQLDA_CURRENT_VERSION;
if (isc_dsql_describe_bind(IB_STATUS, &ib_query->stmt,
SQLDA_CURRENT_VERSION, ib_query->in_sqlda)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_alloc_query_error;
}
}
/* no, haven't placeholders at all */
if (ib_query->in_sqlda->sqld == 0) {
efree(ib_query->in_sqlda);
ib_query->in_sqlda = NULL;
} else if (FAILURE == _php_ibase_alloc_array(&ib_query->in_array, ib_query->in_sqlda,
link->handle, trans->handle, &ib_query->in_array_cnt TSRMLS_CC)) {
goto _php_ibase_alloc_query_error;
}
if (ib_query->out_sqlda->sqld == 0) {
efree(ib_query->out_sqlda);
ib_query->out_sqlda = NULL;
} else if (FAILURE == _php_ibase_alloc_array(&ib_query->out_array, ib_query->out_sqlda,
link->handle, trans->handle, &ib_query->out_array_cnt TSRMLS_CC)) {
goto _php_ibase_alloc_query_error;
}
return SUCCESS;
_php_ibase_alloc_query_error:
if (ib_query->out_sqlda) {
efree(ib_query->out_sqlda);
}
if (ib_query->in_sqlda) {
efree(ib_query->in_sqlda);
}
if (ib_query->out_array) {
efree(ib_query->out_array);
}
if (ib_query->query) {
efree(ib_query->query);
}
return FAILURE;
}
/* }}} */
static int _php_ibase_bind_array(zval *val, char *buf, unsigned long buf_size, /* {{{ */
ibase_array *array, int dim TSRMLS_DC)
{
zval null_val, *pnull_val = &null_val;
int u_bound = array->ar_desc.array_desc_bounds[dim].array_bound_upper,
l_bound = array->ar_desc.array_desc_bounds[dim].array_bound_lower,
dim_len = 1 + u_bound - l_bound;
ZVAL_NULL(pnull_val);
if (dim < array->ar_desc.array_desc_dimensions) {
unsigned long slice_size = buf_size / dim_len;
unsigned short i;
zval **subval = &val;
if (Z_TYPE_P(val) == IS_ARRAY) {
zend_hash_internal_pointer_reset(Z_ARRVAL_P(val));
}
for (i = 0; i < dim_len; ++i) {
if (Z_TYPE_P(val) == IS_ARRAY &&
zend_hash_get_current_data(Z_ARRVAL_P(val), (void *) &subval) == FAILURE)
{
subval = &pnull_val;
}
if (_php_ibase_bind_array(*subval, buf, slice_size, array, dim+1 TSRMLS_CC) == FAILURE)
{
return FAILURE;
}
buf += slice_size;
if (Z_TYPE_P(val) == IS_ARRAY) {
zend_hash_move_forward(Z_ARRVAL_P(val));
}
}
if (Z_TYPE_P(val) == IS_ARRAY) {
zend_hash_internal_pointer_reset(Z_ARRVAL_P(val));
}
} else {
/* expect a single value */
if (Z_TYPE_P(val) == IS_NULL) {
memset(buf, 0, buf_size);
} else if (array->ar_desc.array_desc_scale < 0) {
/* no coercion for array types */
double l;
convert_to_double(val);
if (Z_DVAL_P(val) > 0) {
l = Z_DVAL_P(val) * pow(10, -array->ar_desc.array_desc_scale) + .5;
} else {
l = Z_DVAL_P(val) * pow(10, -array->ar_desc.array_desc_scale) - .5;
}
switch (array->el_type) {
case SQL_SHORT:
if (l > SHRT_MAX || l < SHRT_MIN) {
_php_ibase_module_error("Array parameter exceeds field width" TSRMLS_CC);
return FAILURE;
}
*(short*) buf = (short) l;
break;
case SQL_LONG:
if (l > ISC_LONG_MAX || l < ISC_LONG_MIN) {
_php_ibase_module_error("Array parameter exceeds field width" TSRMLS_CC);
return FAILURE;
}
*(ISC_LONG*) buf = (ISC_LONG) l;
break;
case SQL_INT64:
{
long double l;
convert_to_string(val);
if (!sscanf(Z_STRVAL_P(val), "%Lf", &l)) {
_php_ibase_module_error("Cannot convert '%s' to long double"
TSRMLS_CC, Z_STRVAL_P(val));
return FAILURE;
}
if (l > 0) {
*(ISC_INT64 *) buf = (ISC_INT64) (l * pow(10,
-array->ar_desc.array_desc_scale) + .5);
} else {
*(ISC_INT64 *) buf = (ISC_INT64) (l * pow(10,
-array->ar_desc.array_desc_scale) - .5);
}
}
break;
}
} else {
struct tm t = { 0, 0, 0, 0, 0, 0 };
switch (array->el_type) {
unsigned short n;
ISC_INT64 l;
case SQL_SHORT:
convert_to_long(val);
if (Z_LVAL_P(val) > SHRT_MAX || Z_LVAL_P(val) < SHRT_MIN) {
_php_ibase_module_error("Array parameter exceeds field width" TSRMLS_CC);
return FAILURE;
}
*(short *) buf = (short) Z_LVAL_P(val);
break;
case SQL_LONG:
convert_to_long(val);
#if (SIZEOF_LONG > 4)
if (Z_LVAL_P(val) > ISC_LONG_MAX || Z_LVAL_P(val) < ISC_LONG_MIN) {
_php_ibase_module_error("Array parameter exceeds field width" TSRMLS_CC);
return FAILURE;
}
#endif
*(ISC_LONG *) buf = (ISC_LONG) Z_LVAL_P(val);
break;
case SQL_INT64:
#if (SIZEOF_LONG >= 8)
convert_to_long(val);
*(long *) buf = Z_LVAL_P(val);
#else
convert_to_string(val);
if (!sscanf(Z_STRVAL_P(val), "%" LL_MASK "d", &l)) {
_php_ibase_module_error("Cannot convert '%s' to long integer"
TSRMLS_CC, Z_STRVAL_P(val));
return FAILURE;
} else {
*(ISC_INT64 *) buf = l;
}
#endif
break;
case SQL_FLOAT:
convert_to_double(val);
*(float*) buf = (float) Z_DVAL_P(val);
break;
case SQL_DOUBLE:
convert_to_double(val);
*(double*) buf = Z_DVAL_P(val);
break;
case SQL_TIMESTAMP:
convert_to_string(val);
#ifdef HAVE_STRPTIME
strptime(Z_STRVAL_P(val), INI_STR("ibase.timestampformat"), &t);
#else
n = sscanf(Z_STRVAL_P(val), "%d%*[/]%d%*[/]%d %d%*[:]%d%*[:]%d",
&t.tm_mon, &t.tm_mday, &t.tm_year, &t.tm_hour, &t.tm_min, &t.tm_sec);
if (n != 3 && n != 6) {
_php_ibase_module_error("Invalid date/time format (expected 3 or 6 fields, got %d."
" Use format 'm/d/Y H:i:s'. You gave '%s')" TSRMLS_CC, n, Z_STRVAL_P(val));
return FAILURE;
}
t.tm_year -= 1900;
t.tm_mon--;
#endif
isc_encode_timestamp(&t, (ISC_TIMESTAMP * ) buf);
break;
case SQL_TYPE_DATE:
convert_to_string(val);
#ifdef HAVE_STRPTIME
strptime(Z_STRVAL_P(val), INI_STR("ibase.dateformat"), &t);
#else
n = sscanf(Z_STRVAL_P(val), "%d%*[/]%d%*[/]%d", &t.tm_mon, &t.tm_mday, &t.tm_year);
if (n != 3) {
_php_ibase_module_error("Invalid date format (expected 3 fields, got %d. "
"Use format 'm/d/Y' You gave '%s')" TSRMLS_CC, n, Z_STRVAL_P(val));
return FAILURE;
}
t.tm_year -= 1900;
t.tm_mon--;
#endif
isc_encode_sql_date(&t, (ISC_DATE *) buf);
break;
case SQL_TYPE_TIME:
convert_to_string(val);
#ifdef HAVE_STRPTIME
strptime(Z_STRVAL_P(val), INI_STR("ibase.timeformat"), &t);
#else
n = sscanf(Z_STRVAL_P(val), "%d%*[:]%d%*[:]%d", &t.tm_hour, &t.tm_min, &t.tm_sec);
if (n != 3) {
_php_ibase_module_error("Invalid time format (expected 3 fields, got %d. "
"Use format 'H:i:s'. You gave '%s')" TSRMLS_CC, n, Z_STRVAL_P(val));
return FAILURE;
}
#endif
isc_encode_sql_time(&t, (ISC_TIME *) buf);
break;
default:
convert_to_string(val);
strlcpy(buf, Z_STRVAL_P(val), buf_size);
}
}
}
return SUCCESS;
}
/* }}} */
static int _php_ibase_bind(XSQLDA *sqlda, zval ***b_vars, BIND_BUF *buf, /* {{{ */
ibase_query *ib_query TSRMLS_DC)
{
int i, array_cnt = 0, rv = SUCCESS;
for (i = 0; i < sqlda->sqld; ++i) { /* bound vars */
zval *b_var = *b_vars[i];
XSQLVAR *var = &sqlda->sqlvar[i];
var->sqlind = &buf[i].sqlind;
/* check if a NULL should be inserted */
switch (Z_TYPE_P(b_var)) {
int force_null;
case IS_STRING:
force_null = 0;
/* for these types, an empty string can be handled like a NULL value */
switch (var->sqltype & ~1) {
case SQL_SHORT:
case SQL_LONG:
case SQL_INT64:
case SQL_FLOAT:
case SQL_DOUBLE:
case SQL_TIMESTAMP:
case SQL_TYPE_DATE:
case SQL_TYPE_TIME:
force_null = (Z_STRLEN_P(b_var) == 0);
}
if (! force_null) break;
case IS_NULL:
buf[i].sqlind = -1;
if (var->sqltype & SQL_ARRAY) ++array_cnt;
continue;
}
/* if we make it to this point, we must provide a value for the parameter */
buf[i].sqlind = 0;
var->sqldata = (void*)&buf[i].val;
switch (var->sqltype & ~1) {
struct tm t;
case SQL_TIMESTAMP:
case SQL_TYPE_DATE:
case SQL_TYPE_TIME:
if (Z_TYPE_P(b_var) == IS_LONG) {
struct tm *res;
res = php_gmtime_r(&Z_LVAL_P(b_var), &t);
if (!res) {
return FAILURE;
}
} else {
#ifdef HAVE_STRPTIME
char *format = INI_STR("ibase.timestampformat");
convert_to_string(b_var);
switch (var->sqltype & ~1) {
case SQL_TYPE_DATE:
format = INI_STR("ibase.dateformat");
break;
case SQL_TYPE_TIME:
format = INI_STR("ibase.timeformat");
}
if (!strptime(Z_STRVAL_P(b_var), format, &t)) {
/* strptime() cannot handle it, so let IB have a try */
break;
}
#else /* ifndef HAVE_STRPTIME */
break; /* let IB parse it as a string */
#endif
}
switch (var->sqltype & ~1) {
default: /* == case SQL_TIMESTAMP */
isc_encode_timestamp(&t, &buf[i].val.tsval);
break;
case SQL_TYPE_DATE:
isc_encode_sql_date(&t, &buf[i].val.dtval);
break;
case SQL_TYPE_TIME:
isc_encode_sql_time(&t, &buf[i].val.tmval);
break;
}
continue;
case SQL_BLOB:
convert_to_string(b_var);
if (Z_STRLEN_P(b_var) != BLOB_ID_LEN ||
!_php_ibase_string_to_quad(Z_STRVAL_P(b_var), &buf[i].val.qval)) {
ibase_blob ib_blob = { NULL, BLOB_INPUT };
if (isc_create_blob(IB_STATUS, &ib_query->link->handle,
&ib_query->trans->handle, &ib_blob.bl_handle, &ib_blob.bl_qd)) {
_php_ibase_error(TSRMLS_C);
return FAILURE;
}
if (_php_ibase_blob_add(&b_var, &ib_blob TSRMLS_CC) != SUCCESS) {
return FAILURE;
}
if (isc_close_blob(IB_STATUS, &ib_blob.bl_handle)) {
_php_ibase_error(TSRMLS_C);
return FAILURE;
}
buf[i].val.qval = ib_blob.bl_qd;
}
continue;
case SQL_ARRAY:
if (Z_TYPE_P(b_var) != IS_ARRAY) {
convert_to_string(b_var);
if (Z_STRLEN_P(b_var) != BLOB_ID_LEN ||
!_php_ibase_string_to_quad(Z_STRVAL_P(b_var), &buf[i].val.qval)) {
_php_ibase_module_error("Parameter %d: invalid array ID" TSRMLS_CC,i+1);
rv = FAILURE;
}
} else {
/* convert the array data into something IB can understand */
ibase_array *ar = &ib_query->in_array[array_cnt];
void *array_data = emalloc(ar->ar_size);
ISC_QUAD array_id = { 0, 0 };
if (FAILURE == _php_ibase_bind_array(b_var, array_data, ar->ar_size,
ar, 0 TSRMLS_CC)) {
_php_ibase_module_error("Parameter %d: failed to bind array argument"
TSRMLS_CC,i+1);
efree(array_data);
rv = FAILURE;
continue;
}
if (isc_array_put_slice(IB_STATUS, &ib_query->link->handle, &ib_query->trans->handle,
&array_id, &ar->ar_desc, array_data, &ar->ar_size)) {
_php_ibase_error(TSRMLS_C);
efree(array_data);
return FAILURE;
}
buf[i].val.qval = array_id;
efree(array_data);
}
++array_cnt;
continue;
} /* switch */
/* we end up here if none of the switch cases handled the field */
convert_to_string(b_var);
var->sqldata = Z_STRVAL_P(b_var);
var->sqllen = Z_STRLEN_P(b_var);
var->sqltype = SQL_TEXT;
} /* for */
return rv;
}
/* }}} */
static void _php_ibase_alloc_xsqlda(XSQLDA *sqlda) /* {{{ */
{
int i;
for (i = 0; i < sqlda->sqld; i++) {
XSQLVAR *var = &sqlda->sqlvar[i];
switch (var->sqltype & ~1) {
case SQL_TEXT:
var->sqldata = safe_emalloc(sizeof(char), var->sqllen, 0);
break;
case SQL_VARYING:
var->sqldata = safe_emalloc(sizeof(char), var->sqllen + sizeof(short), 0);
break;
case SQL_SHORT:
var->sqldata = emalloc(sizeof(short));
break;
case SQL_LONG:
var->sqldata = emalloc(sizeof(ISC_LONG));
break;
case SQL_FLOAT:
var->sqldata = emalloc(sizeof(float));
break;
case SQL_DOUBLE:
var->sqldata = emalloc(sizeof(double));
break;
case SQL_INT64:
var->sqldata = emalloc(sizeof(ISC_INT64));
break;
case SQL_TIMESTAMP:
var->sqldata = emalloc(sizeof(ISC_TIMESTAMP));
break;
case SQL_TYPE_DATE:
var->sqldata = emalloc(sizeof(ISC_DATE));
break;
case SQL_TYPE_TIME:
var->sqldata = emalloc(sizeof(ISC_TIME));
break;
case SQL_BLOB:
case SQL_ARRAY:
var->sqldata = emalloc(sizeof(ISC_QUAD));
break;
} /* switch */
if (var->sqltype & 1) { /* sql NULL flag */
var->sqlind = emalloc(sizeof(short));
} else {
var->sqlind = NULL;
}
} /* for */
}
/* }}} */
static int _php_ibase_exec(INTERNAL_FUNCTION_PARAMETERS, ibase_result **ib_resultp, /* {{{ */
ibase_query *ib_query, zval ***args)
{
XSQLDA *in_sqlda = NULL, *out_sqlda = NULL;
BIND_BUF *bind_buf = NULL;
int i, rv = FAILURE;
static char info_count[] = { isc_info_sql_records };
char result[64];
ISC_STATUS isc_result;
int argc = ib_query->in_sqlda ? ib_query->in_sqlda->sqld : 0;
RESET_ERRMSG;
for (i = 0; i < argc; ++i) {
SEPARATE_ZVAL(args[i]);
}
switch (ib_query->statement_type) {
isc_tr_handle tr;
ibase_tr_list **l;
ibase_trans *trans;
case isc_info_sql_stmt_start_trans:
/* a SET TRANSACTION statement should be executed with a NULL trans handle */
tr = NULL;
if (isc_dsql_execute_immediate(IB_STATUS, &ib_query->link->handle, &tr, 0,
ib_query->query, ib_query->dialect, NULL)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_exec_error;
}
trans = (ibase_trans *) emalloc(sizeof(ibase_trans));
trans->handle = tr;
trans->link_cnt = 1;
trans->affected_rows = 0;
trans->db_link[0] = ib_query->link;
if (ib_query->link->tr_list == NULL) {
ib_query->link->tr_list = (ibase_tr_list *) emalloc(sizeof(ibase_tr_list));
ib_query->link->tr_list->trans = NULL;
ib_query->link->tr_list->next = NULL;
}
/* link the transaction into the connection-transaction list */
for (l = &ib_query->link->tr_list; *l != NULL; l = &(*l)->next);
*l = (ibase_tr_list *) emalloc(sizeof(ibase_tr_list));
(*l)->trans = trans;
(*l)->next = NULL;
ZEND_REGISTER_RESOURCE(return_value, trans, le_trans);
return SUCCESS;
case isc_info_sql_stmt_commit:
case isc_info_sql_stmt_rollback:
if (isc_dsql_execute_immediate(IB_STATUS, &ib_query->link->handle,
&ib_query->trans->handle, 0, ib_query->query, ib_query->dialect, NULL)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_exec_error;
}
if (ib_query->trans->handle == NULL && ib_query->trans_res_id != 0) {
/* transaction was released by the query and was a registered resource,
so we have to release it */
zend_list_delete(ib_query->trans_res_id);
}
RETVAL_TRUE;
return SUCCESS;
default:
RETVAL_FALSE;
}
/* allocate sqlda and output buffers */
if (ib_query->out_sqlda) { /* output variables in select, select for update */
ibase_result *res;
IBDEBUG("Query wants XSQLDA for output");
res = emalloc(sizeof(ibase_result)+sizeof(ibase_array)*max(0,ib_query->out_array_cnt-1));
res->link = ib_query->link;
res->trans = ib_query->trans;
res->stmt = ib_query->stmt;
/* ib_result and ib_query point at each other to handle release of statement handle properly */
res->query = ib_query;
ib_query->result = res;
res->statement_type = ib_query->statement_type;
res->has_more_rows = 1;
out_sqlda = res->out_sqlda = emalloc(XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
memcpy(out_sqlda, ib_query->out_sqlda, XSQLDA_LENGTH(ib_query->out_sqlda->sqld));
_php_ibase_alloc_xsqlda(out_sqlda);
if (ib_query->out_array) {
memcpy(&res->out_array, ib_query->out_array, sizeof(ibase_array)*ib_query->out_array_cnt);
}
*ib_resultp = res;
}
if (ib_query->in_sqlda) { /* has placeholders */
IBDEBUG("Query wants XSQLDA for input");
in_sqlda = emalloc(XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
memcpy(in_sqlda, ib_query->in_sqlda, XSQLDA_LENGTH(ib_query->in_sqlda->sqld));
bind_buf = safe_emalloc(sizeof(BIND_BUF), ib_query->in_sqlda->sqld, 0);
if (_php_ibase_bind(in_sqlda, args, bind_buf, ib_query TSRMLS_CC) == FAILURE) {
IBDEBUG("Could not bind input XSQLDA");
goto _php_ibase_exec_error;
}
}
if (ib_query->statement_type == isc_info_sql_stmt_exec_procedure) {
isc_result = isc_dsql_execute2(IB_STATUS, &ib_query->trans->handle,
&ib_query->stmt, SQLDA_CURRENT_VERSION, in_sqlda, out_sqlda);
} else {
isc_result = isc_dsql_execute(IB_STATUS, &ib_query->trans->handle,
&ib_query->stmt, SQLDA_CURRENT_VERSION, in_sqlda);
}
if (isc_result) {
IBDEBUG("Could not execute query");
_php_ibase_error(TSRMLS_C);
goto _php_ibase_exec_error;
}
ib_query->trans->affected_rows = 0;
switch (ib_query->statement_type) {
unsigned long affected_rows;
case isc_info_sql_stmt_insert:
case isc_info_sql_stmt_update:
case isc_info_sql_stmt_delete:
case isc_info_sql_stmt_exec_procedure:
if (isc_dsql_sql_info(IB_STATUS, &ib_query->stmt, sizeof(info_count),
info_count, sizeof(result), result)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_exec_error;
}
affected_rows = 0;
if (result[0] == isc_info_sql_records) {
unsigned i = 3, result_size = isc_vax_integer(&result[1],2);
while (result[i] != isc_info_end && i < result_size) {
short len = (short)isc_vax_integer(&result[i+1],2);
if (result[i] != isc_info_req_select_count) {
affected_rows += isc_vax_integer(&result[i+3],len);
}
i += len+3;
}
}
ib_query->trans->affected_rows = affected_rows;
if (!ib_query->out_sqlda) { /* no result set is being returned */
if (affected_rows) {
RETVAL_LONG(affected_rows);
} else {
RETVAL_TRUE;
}
break;
}
default:
RETVAL_TRUE;
}
rv = SUCCESS;
_php_ibase_exec_error:
if (in_sqlda) {
efree(in_sqlda);
}
if (bind_buf)
efree(bind_buf);
if (rv == FAILURE) {
if (*ib_resultp) {
efree(*ib_resultp);
*ib_resultp = NULL;
}
if (out_sqlda) {
_php_ibase_free_xsqlda(out_sqlda);
}
}
return rv;
}
/* }}} */
/* {{{ proto mixed ibase_query([resource link_identifier, [ resource link_identifier, ]] string query [, mixed bind_arg [, mixed bind_arg [, ...]]])
Execute a query */
PHP_FUNCTION(ibase_query)
{
zval *zlink, *ztrans, ***bind_args = NULL;
char *query;
int bind_i, query_len, bind_num;
long trans_res_id = 0;
ibase_db_link *ib_link = NULL;
ibase_trans *trans = NULL;
ibase_query ib_query = { NULL, NULL, 0, 0 };
ibase_result *result = NULL;
RESET_ERRMSG;
RETVAL_FALSE;
switch (ZEND_NUM_ARGS()) {
long l;
default:
if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 3 TSRMLS_CC, "rrs",
&zlink, &ztrans, &query, &query_len)) {
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link*, &zlink, -1, LE_LINK, le_link, le_plink);
ZEND_FETCH_RESOURCE(trans, ibase_trans*, &ztrans, -1, LE_TRANS, le_trans);
trans_res_id = Z_LVAL_P(ztrans);
bind_i = 3;
break;
}
case 2:
if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, 2 TSRMLS_CC, "rs",
&zlink, &query, &query_len)) {
_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, &zlink, &ib_link, &trans);
if (trans != NULL) {
trans_res_id = Z_LVAL_P(zlink);
}
bind_i = 2;
break;
}
/* the statement is 'CREATE DATABASE ...' if the link argument is IBASE_CREATE */
if (SUCCESS == zend_parse_parameters_ex(ZEND_PARSE_PARAMS_QUIET, ZEND_NUM_ARGS()
TSRMLS_CC, "ls", &l, &query, &query_len) && l == PHP_IBASE_CREATE) {
isc_db_handle db = NULL;
isc_tr_handle trans = NULL;
if (PG(sql_safe_mode)) {
_php_ibase_module_error("CREATE DATABASE is not allowed in SQL safe mode"
TSRMLS_CC);
} else if (((l = INI_INT("ibase.max_links")) != -1) && (IBG(num_links) >= l)) {
_php_ibase_module_error("CREATE DATABASE is not allowed: maximum link count "
"(%ld) reached" TSRMLS_CC, l);
} else if (isc_dsql_execute_immediate(IB_STATUS, &db, &trans, (short)query_len,
query, SQL_DIALECT_CURRENT, NULL)) {
_php_ibase_error(TSRMLS_C);
} else if (!db) {
_php_ibase_module_error("Connection to created database could not be "
"established" TSRMLS_CC);
} else {
/* register the link as a resource; unfortunately, we cannot register
it in the hash table, because we don't know the connection params */
ib_link = (ibase_db_link *) emalloc(sizeof(ibase_db_link));
ib_link->handle = db;
ib_link->dialect = SQL_DIALECT_CURRENT;
ib_link->tr_list = NULL;
ib_link->event_head = NULL;
ZEND_REGISTER_RESOURCE(return_value, ib_link, le_link);
zend_list_addref(Z_LVAL_P(return_value));
IBG(default_link) = Z_LVAL_P(return_value);
++IBG(num_links);
}
return;
}
case 1:
case 0:
if (SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() ? 1 : 0 TSRMLS_CC, "s", &query,
&query_len)) {
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link *, NULL, IBG(default_link), LE_LINK,
le_link, le_plink);
bind_i = 1;
break;
}
return;
}
/* open default transaction */
if (ib_link == NULL || FAILURE == _php_ibase_def_trans(ib_link, &trans TSRMLS_CC)
|| FAILURE == _php_ibase_alloc_query(&ib_query, ib_link, trans, query, ib_link->dialect,
trans_res_id TSRMLS_CC)) {
return;
}
do {
int bind_n = ZEND_NUM_ARGS() - bind_i,
expected_n = ib_query.in_sqlda ? ib_query.in_sqlda->sqld : 0;
if (bind_n != expected_n) {
php_error_docref(NULL TSRMLS_CC, (bind_n < expected_n) ? E_WARNING : E_NOTICE,
"Statement expects %d arguments, %d given", expected_n, bind_n);
if (bind_n < expected_n) {
break;
}
} else if (bind_n > 0) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "+", &bind_args, &bind_num) == FAILURE) {
return;
}
}
if (FAILURE == _php_ibase_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, &result, &ib_query,
&bind_args[bind_i])) {
break;
}
if (result != NULL) { /* statement returns a result */
result->type = QUERY_RESULT;
/* EXECUTE PROCEDURE returns only one row => statement can be released immediately */
if (ib_query.statement_type != isc_info_sql_stmt_exec_procedure) {
ib_query.stmt = NULL; /* keep stmt when free query */
}
ZEND_REGISTER_RESOURCE(return_value, result, le_result);
}
} while (0);
_php_ibase_free_query(&ib_query TSRMLS_CC);
if (bind_args) {
efree(bind_args);
}
}
/* }}} */
/* {{{ proto int ibase_affected_rows( [ resource link_identifier ] )
Returns the number of rows affected by the previous INSERT, UPDATE or DELETE statement */
PHP_FUNCTION(ibase_affected_rows)
{
ibase_trans *trans = NULL;
ibase_db_link *ib_link;
zval *arg = NULL;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|r", &arg) == FAILURE) {
return;
}
if (!arg) {
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link *, NULL, IBG(default_link), LE_LINK, le_link, le_plink);
if (ib_link->tr_list == NULL || ib_link->tr_list->trans == NULL) {
RETURN_FALSE;
}
trans = ib_link->tr_list->trans;
} else {
/* one id was passed, could be db or trans id */
_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, &arg, &ib_link, &trans);
if (trans == NULL) {
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link *, &arg, -1, LE_LINK, le_link, le_plink);
if (ib_link->tr_list == NULL || ib_link->tr_list->trans == NULL) {
RETURN_FALSE;
}
trans = ib_link->tr_list->trans;
}
}
RETURN_LONG(trans->affected_rows);
}
/* }}} */
/* {{{ proto int ibase_num_rows( resource result_identifier )
Return the number of rows that are available in a result */
#if abies_0
PHP_FUNCTION(ibase_num_rows)
{
/**
* As this function relies on the InterBase API function isc_dsql_sql_info()
* which has a couple of limitations (which I hope will be fixed in future
* releases of Firebird), this function is fairly useless. I'm leaving it
* in place for people who can live with the limitations, which I only
* found out about after I had implemented it anyway.
*
* Currently, there's no way to determine how many rows can be fetched from
* a cursor. The only number that _can_ be determined is the number of rows
* that have already been pre-fetched by the client library.
* This implies the following:
* - num_rows() always returns zero before the first fetch;
* - num_rows() for SELECT ... FOR UPDATE is broken -> never returns a
* higher number than the number of records fetched so far (no pre-fetch);
* - the result of num_rows() for other statements is merely a lower bound
* on the number of records => calling ibase_num_rows() again after a couple
* of fetches will most likely return a new (higher) figure for large result
* sets.
*/
zval *result_arg;
ibase_result *ib_result;
static char info_count[] = {isc_info_sql_records};
char result[64];
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &result_arg) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result_arg, -1, LE_RESULT, le_result);
if (isc_dsql_sql_info(IB_STATUS, &ib_result->stmt, sizeof(info_count), info_count, sizeof(result), result)) {
_php_ibase_error(TSRMLS_C);
RETURN_FALSE;
}
if (result[0] == isc_info_sql_records) {
unsigned i = 3, result_size = isc_vax_integer(&result[1],2);
while (result[i] != isc_info_end && i < result_size) {
short len = (short)isc_vax_integer(&result[i+1],2);
if (result[i] == isc_info_req_select_count) {
RETURN_LONG(isc_vax_integer(&result[i+3],len));
}
i += len+3;
}
}
}
#endif
/* }}} */
static int _php_ibase_var_zval(zval *val, void *data, int type, int len, /* {{{ */
int scale, int flag TSRMLS_DC)
{
static ISC_INT64 const scales[] = { 1, 10, 100, 1000,
10000,
100000,
1000000,
10000000,
100000000,
1000000000,
LL_LIT(10000000000),
LL_LIT(100000000000),
LL_LIT(1000000000000),
LL_LIT(10000000000000),
LL_LIT(100000000000000),
LL_LIT(1000000000000000),
LL_LIT(10000000000000000),
LL_LIT(100000000000000000),
LL_LIT(1000000000000000000)
};
switch (type & ~1) {
unsigned short l;
long n;
char string_data[255];
struct tm t;
char *format;
case SQL_VARYING:
len = ((IBVARY *) data)->vary_length;
data = ((IBVARY *) data)->vary_string;
/* no break */
case SQL_TEXT:
ZVAL_STRINGL(val,(char *) data,len,1);
break;
case SQL_SHORT:
n = *(short *) data;
goto _sql_long;
case SQL_INT64:
#if (SIZEOF_LONG >= 8)
n = *(long *) data;
goto _sql_long;
#else
if (scale == 0) {
l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d", *(ISC_INT64 *) data);
ZVAL_STRINGL(val,string_data,l,1);
} else {
ISC_INT64 n = *(ISC_INT64 *) data, f = scales[-scale];
if (n >= 0) {
l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, n % f);
} else if (n <= -f) {
l = slprintf(string_data, sizeof(string_data), "%" LL_MASK "d.%0*" LL_MASK "d", n / f, -scale, -n % f);
} else {
l = slprintf(string_data, sizeof(string_data), "-0.%0*" LL_MASK "d", -scale, -n % f);
}
ZVAL_STRINGL(val,string_data,l,1);
}
break;
#endif
case SQL_LONG:
n = *(ISC_LONG *) data;
_sql_long:
if (scale == 0) {
ZVAL_LONG(val,n);
} else {
long f = (long) scales[-scale];
if (n >= 0) {
l = slprintf(string_data, sizeof(string_data), "%ld.%0*ld", n / f, -scale, n % f);
} else if (n <= -f) {
l = slprintf(string_data, sizeof(string_data), "%ld.%0*ld", n / f, -scale, -n % f);
} else {
l = slprintf(string_data, sizeof(string_data), "-0.%0*ld", -scale, -n % f);
}
ZVAL_STRINGL(val,string_data,l,1);
}
break;
case SQL_FLOAT:
ZVAL_DOUBLE(val, *(float *) data);
break;
case SQL_DOUBLE:
ZVAL_DOUBLE(val, *(double *) data);
break;
case SQL_DATE: /* == case SQL_TIMESTAMP: */
format = INI_STR("ibase.timestampformat");
isc_decode_timestamp((ISC_TIMESTAMP *) data, &t);
goto format_date_time;
case SQL_TYPE_DATE:
format = INI_STR("ibase.dateformat");
isc_decode_sql_date((ISC_DATE *) data, &t);
goto format_date_time;
case SQL_TYPE_TIME:
format = INI_STR("ibase.timeformat");
isc_decode_sql_time((ISC_TIME *) data, &t);
format_date_time:
/*
XXX - Might have to remove this later - seems that isc_decode_date()
always sets tm_isdst to 0, sometimes incorrectly (InterBase 6 bug?)
*/
t.tm_isdst = -1;
#if HAVE_TM_ZONE
t.tm_zone = tzname[0];
#endif
if (flag & PHP_IBASE_UNIXTIME) {
ZVAL_LONG(val, mktime(&t));
} else {
#if HAVE_STRFTIME
l = strftime(string_data, sizeof(string_data), format, &t);
#else
switch (type & ~1) {
default:
l = slprintf(string_data, sizeof(string_data), "%02d/%02d/%4d %02d:%02d:%02d", t.tm_mon+1, t.tm_mday,
t.tm_year + 1900, t.tm_hour, t.tm_min, t.tm_sec);
break;
case SQL_TYPE_DATE:
l = slprintf(string_data, sizeof(string_data), "%02d/%02d/%4d", t.tm_mon + 1, t.tm_mday, t.tm_year+1900);
break;
case SQL_TYPE_TIME:
l = slprintf(string_data, sizeof(string_data), "%02d:%02d:%02d", t.tm_hour, t.tm_min, t.tm_sec);
break;
}
#endif
ZVAL_STRINGL(val,string_data,l,1);
break;
}
} /* switch (type) */
return SUCCESS;
}
/* }}} */
static int _php_ibase_arr_zval(zval *ar_zval, char *data, unsigned long data_size, /* {{{ */
ibase_array *ib_array, int dim, int flag TSRMLS_DC)
{
/**
* Create multidimension array - recursion function
*/
int
u_bound = ib_array->ar_desc.array_desc_bounds[dim].array_bound_upper,
l_bound = ib_array->ar_desc.array_desc_bounds[dim].array_bound_lower,
dim_len = 1 + u_bound - l_bound;
unsigned short i;
if (dim < ib_array->ar_desc.array_desc_dimensions) { /* array again */
unsigned long slice_size = data_size / dim_len;
array_init(ar_zval);
for (i = 0; i < dim_len; ++i) {
zval *slice_zval;
ALLOC_INIT_ZVAL(slice_zval);
/* recursion here */
if (FAILURE == _php_ibase_arr_zval(slice_zval, data, slice_size, ib_array, dim + 1,
flag TSRMLS_CC)) {
return FAILURE;
}
data += slice_size;
add_index_zval(ar_zval,l_bound+i,slice_zval);
}
} else { /* data at last */
if (FAILURE == _php_ibase_var_zval(ar_zval, data, ib_array->el_type,
ib_array->ar_desc.array_desc_length, ib_array->ar_desc.array_desc_scale, flag TSRMLS_CC)) {
return FAILURE;
}
/* fix for peculiar handling of VARCHAR arrays;
truncate the field to the cstring length */
if (ib_array->ar_desc.array_desc_dtype == blr_varying ||
ib_array->ar_desc.array_desc_dtype == blr_varying2) {
Z_STRLEN_P(ar_zval) = strlen(Z_STRVAL_P(ar_zval));
}
}
return SUCCESS;
}
/* }}} */
static void _php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAMETERS, int fetch_type) /* {{{ */
{
zval *result_arg;
long i, array_cnt = 0, flag = 0;
ibase_result *ib_result;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r|l", &result_arg, &flag)) {
return;
}
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result_arg, -1, LE_RESULT, le_result);
if (ib_result->out_sqlda == NULL || !ib_result->has_more_rows) {
RETURN_FALSE;
}
if (ib_result->statement_type != isc_info_sql_stmt_exec_procedure) {
if (isc_dsql_fetch(IB_STATUS, &ib_result->stmt, 1, ib_result->out_sqlda)) {
ib_result->has_more_rows = 0;
if (IB_STATUS[0] && IB_STATUS[1]) { /* error in fetch */
_php_ibase_error(TSRMLS_C);
}
RETURN_FALSE;
}
} else {
ib_result->has_more_rows = 0;
}
array_init(return_value);
for (i = 0; i < ib_result->out_sqlda->sqld; ++i) {
XSQLVAR *var = &ib_result->out_sqlda->sqlvar[i];
char buf[METADATALENGTH+4], *alias = var->aliasname;
if (! (fetch_type & FETCH_ROW)) {
int i = 0;
char const *base = "FIELD"; /* use 'FIELD' if name is empty */
/**
* Ensure no two columns have identical names:
* keep generating new names until we find one that is unique.
*/
switch (*alias) {
void *p;
default:
i = 1;
base = alias;
while (SUCCESS == zend_symtable_find(
Z_ARRVAL_P(return_value),alias,strlen(alias)+1,&p)) {
case '\0':
snprintf(alias = buf, sizeof(buf), "%s_%02d", base, i++);
}
}
}
if (((var->sqltype & 1) == 0) || *var->sqlind != -1) {
zval *result;
ALLOC_INIT_ZVAL(result);
switch (var->sqltype & ~1) {
default:
_php_ibase_var_zval(result, var->sqldata, var->sqltype, var->sqllen,
var->sqlscale, flag TSRMLS_CC);
break;
case SQL_BLOB:
if (flag & PHP_IBASE_FETCH_BLOBS) { /* fetch blob contents into hash */
ibase_blob blob_handle;
unsigned long max_len = 0;
static char bl_items[] = {isc_info_blob_total_length};
char bl_info[20];
unsigned short i;
blob_handle.bl_handle = NULL;
blob_handle.bl_qd = *(ISC_QUAD *) var->sqldata;
if (isc_open_blob(IB_STATUS, &ib_result->link->handle, &ib_result->trans->handle,
&blob_handle.bl_handle, &blob_handle.bl_qd)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_fetch_error;
}
if (isc_blob_info(IB_STATUS, &blob_handle.bl_handle, sizeof(bl_items),
bl_items, sizeof(bl_info), bl_info)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_fetch_error;
}
/* find total length of blob's data */
for (i = 0; i < sizeof(bl_info); ) {
unsigned short item_len;
char item = bl_info[i++];
if (item == isc_info_end || item == isc_info_truncated ||
item == isc_info_error || i >= sizeof(bl_info)) {
_php_ibase_module_error("Could not determine BLOB size (internal error)"
TSRMLS_CC);
goto _php_ibase_fetch_error;
}
item_len = (unsigned short) isc_vax_integer(&bl_info[i], 2);
if (item == isc_info_blob_total_length) {
max_len = isc_vax_integer(&bl_info[i+2], item_len);
break;
}
i += item_len+2;
}
if (max_len == 0) {
ZVAL_STRING(result, "", 1);
} else if (SUCCESS != _php_ibase_blob_get(result, &blob_handle,
max_len TSRMLS_CC)) {
goto _php_ibase_fetch_error;
}
if (isc_close_blob(IB_STATUS, &blob_handle.bl_handle)) {
_php_ibase_error(TSRMLS_C);
goto _php_ibase_fetch_error;
}
} else { /* blob id only */
ISC_QUAD bl_qd = *(ISC_QUAD *) var->sqldata;
ZVAL_STRINGL(result,_php_ibase_quad_to_string(bl_qd), BLOB_ID_LEN, 0);
}
break;
case SQL_ARRAY:
if (flag & PHP_IBASE_FETCH_ARRAYS) { /* array can be *huge* so only fetch if asked */
ISC_QUAD ar_qd = *(ISC_QUAD *) var->sqldata;
ibase_array *ib_array = &ib_result->out_array[array_cnt++];
void *ar_data = emalloc(ib_array->ar_size);
if (isc_array_get_slice(IB_STATUS, &ib_result->link->handle,
&ib_result->trans->handle, &ar_qd, &ib_array->ar_desc,
ar_data, &ib_array->ar_size)) {
_php_ibase_error(TSRMLS_C);
efree(ar_data);
goto _php_ibase_fetch_error;
}
if (FAILURE == _php_ibase_arr_zval(result, ar_data, ib_array->ar_size, ib_array,
0, flag TSRMLS_CC)) {
efree(ar_data);
goto _php_ibase_fetch_error;
}
efree(ar_data);
} else { /* blob id only */
ISC_QUAD ar_qd = *(ISC_QUAD *) var->sqldata;
ZVAL_STRINGL(result,_php_ibase_quad_to_string(ar_qd), BLOB_ID_LEN, 0);
}
break;
_php_ibase_fetch_error:
zval_dtor(result);
FREE_ZVAL(result);
RETURN_FALSE;
} /* switch */
if (fetch_type & FETCH_ROW) {
add_index_zval(return_value, i, result);
} else {
add_assoc_zval(return_value, alias, result);
}
} else {
if (fetch_type & FETCH_ROW) {
add_index_null(return_value, i);
} else {
add_assoc_null(return_value, alias);
}
}
} /* for field */
}
/* }}} */
/* {{{ proto array ibase_fetch_row(resource result [, int fetch_flags])
Fetch a row from the results of a query */
PHP_FUNCTION(ibase_fetch_row)
{
_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ROW);
}
/* }}} */
/* {{{ proto array ibase_fetch_assoc(resource result [, int fetch_flags])
Fetch a row from the results of a query */
PHP_FUNCTION(ibase_fetch_assoc)
{
_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ARRAY);
}
/* }}} */
/* {{{ proto object ibase_fetch_object(resource result [, int fetch_flags])
Fetch a object from the results of a query */
PHP_FUNCTION(ibase_fetch_object)
{
_php_ibase_fetch_hash(INTERNAL_FUNCTION_PARAM_PASSTHRU, FETCH_ARRAY);
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 bool ibase_name_result(resource result, string name)
Assign a name to a result for use with ... WHERE CURRENT OF <name> statements */
PHP_FUNCTION(ibase_name_result)
{
zval *result_arg;
char *name_arg;
int name_arg_len;
ibase_result *ib_result;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &result_arg, &name_arg, &name_arg_len) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result_arg, -1, LE_RESULT, le_result);
if (isc_dsql_set_cursor_name(IB_STATUS, &ib_result->stmt, name_arg, 0)) {
_php_ibase_error(TSRMLS_C);
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool ibase_free_result(resource result)
Free the memory used by a result */
PHP_FUNCTION(ibase_free_result)
{
zval *result_arg;
ibase_result *ib_result;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &result_arg) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result_arg, -1, LE_RESULT, le_result);
zend_list_delete(Z_RESVAL_P(result_arg));
RETURN_TRUE;
}
/* }}} */
/* {{{ proto resource ibase_prepare(resource link_identifier[, string query [, resource trans_identifier ]])
Prepare a query for later execution */
PHP_FUNCTION(ibase_prepare)
{
zval *link_arg, *trans_arg;
ibase_db_link *ib_link;
ibase_trans *trans = NULL;
int query_len, trans_res_id = 0;
ibase_query *ib_query;
char *query;
RESET_ERRMSG;
if (ZEND_NUM_ARGS() == 1) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &query, &query_len) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link *, NULL, IBG(default_link), LE_LINK, le_link, le_plink);
} else if (ZEND_NUM_ARGS() == 2) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rs", &link_arg, &query, &query_len) == FAILURE) {
return;
}
_php_ibase_get_link_trans(INTERNAL_FUNCTION_PARAM_PASSTHRU, &link_arg, &ib_link, &trans);
if (trans != NULL) {
trans_res_id = Z_RESVAL_P(link_arg);
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rrs", &link_arg, &trans_arg, &query, &query_len) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE2(ib_link, ibase_db_link *, &link_arg, -1, LE_LINK, le_link, le_plink);
ZEND_FETCH_RESOURCE(trans, ibase_trans *, &trans_arg, -1, LE_TRANS, le_trans);
trans_res_id = Z_RESVAL_P(trans_arg);
}
if (FAILURE == _php_ibase_def_trans(ib_link, &trans TSRMLS_CC)) {
RETURN_FALSE;
}
ib_query = (ibase_query *) emalloc(sizeof(ibase_query));
if (FAILURE == _php_ibase_alloc_query(ib_query, ib_link, trans, query, ib_link->dialect, trans_res_id TSRMLS_CC)) {
efree(ib_query);
RETURN_FALSE;
}
ZEND_REGISTER_RESOURCE(return_value, ib_query, le_query);
}
/* }}} */
/* {{{ proto mixed ibase_execute(resource query [, mixed bind_arg [, mixed bind_arg [, ...]]])
Execute a previously prepared query */
PHP_FUNCTION(ibase_execute)
{
zval *query, ***args = NULL;
ibase_query *ib_query;
ibase_result *result = NULL;
ALLOCA_FLAG(use_heap)
RESET_ERRMSG;
RETVAL_FALSE;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() ? 1 : 0 TSRMLS_CC, "r", &query)) {
return;
}
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &query, -1, LE_QUERY, le_query);
do {
int bind_n = ZEND_NUM_ARGS() - 1,
expected_n = ib_query->in_sqlda ? ib_query->in_sqlda->sqld : 0;
if (bind_n != expected_n) {
php_error_docref(NULL TSRMLS_CC, (bind_n < expected_n) ? E_WARNING : E_NOTICE,
"Statement expects %d arguments, %d given", expected_n, bind_n);
if (bind_n < expected_n) {
break;
}
}
/* have variables to bind */
args = (zval ***) do_alloca((expected_n + 1) * sizeof(zval **), use_heap);
if (FAILURE == zend_get_parameters_array_ex((expected_n + 1), args)) {
break;
}
/* Have we used this cursor before and it's still open (exec proc has no cursor) ? */
if (ib_query->result_res_id != 0
&& ib_query->statement_type != isc_info_sql_stmt_exec_procedure) {
IBDEBUG("Implicitly closing a cursor");
if (isc_dsql_free_statement(IB_STATUS, &ib_query->stmt, DSQL_close)) {
_php_ibase_error(TSRMLS_C);
break;
}
/* invalidate previous results returned by this query (not necessary for exec proc) */
zend_list_delete(ib_query->result_res_id);
}
if (FAILURE == _php_ibase_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, &result, ib_query,
&args[1])) {
break;
}
/* free the query if trans handle was released */
if (ib_query->trans->handle == NULL) {
zend_list_delete(Z_LVAL_P(query));
}
if (result != NULL) {
result->type = EXECUTE_RESULT;
if (ib_query->statement_type == isc_info_sql_stmt_exec_procedure) {
result->stmt = NULL;
}
ib_query->result_res_id = zend_list_insert(result, le_result TSRMLS_CC);
RETVAL_RESOURCE(ib_query->result_res_id);
}
} while (0);
if (args) {
free_alloca(args, use_heap);
}
}
/* }}} */
/* {{{ proto bool ibase_free_query(resource query)
Free memory used by a query */
PHP_FUNCTION(ibase_free_query)
{
zval *query_arg;
ibase_query *ib_query;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &query_arg) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &query_arg, -1, LE_QUERY, le_query);
zend_list_delete(Z_RESVAL_P(query_arg));
RETURN_TRUE;
}
/* }}} */
/* {{{ proto int ibase_num_fields(resource query_result)
Get the number of fields in result */
PHP_FUNCTION(ibase_num_fields)
{
zval *result;
int type;
XSQLDA *sqlda;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &result) == FAILURE) {
return;
}
zend_list_find(Z_RESVAL_P(result), &type);
if (type == le_query) {
ibase_query *ib_query;
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &result, -1, LE_QUERY, le_query);
sqlda = ib_query->out_sqlda;
} else {
ibase_result *ib_result;
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result, -1, LE_RESULT, le_result);
sqlda = ib_result->out_sqlda;
}
if (sqlda == NULL) {
RETURN_LONG(0);
} else {
RETURN_LONG(sqlda->sqld);
}
}
/* }}} */
static void _php_ibase_field_info(zval *return_value, XSQLVAR *var) /* {{{ */
{
unsigned short len;
char buf[16], *s = buf;
array_init(return_value);
add_index_stringl(return_value, 0, var->sqlname, var->sqlname_length, 1);
add_assoc_stringl(return_value, "name", var->sqlname, var->sqlname_length, 1);
add_index_stringl(return_value, 1, var->aliasname, var->aliasname_length, 1);
add_assoc_stringl(return_value, "alias", var->aliasname, var->aliasname_length, 1);
add_index_stringl(return_value, 2, var->relname, var->relname_length, 1);
add_assoc_stringl(return_value, "relation", var->relname, var->relname_length, 1);
len = slprintf(buf, 16, "%d", var->sqllen);
add_index_stringl(return_value, 3, buf, len, 1);
add_assoc_stringl(return_value, "length", buf, len, 1);
if (var->sqlscale < 0) {
unsigned short precision = 0;
switch (var->sqltype & ~1) {
case SQL_SHORT:
precision = 4;
break;
case SQL_LONG:
precision = 9;
break;
case SQL_INT64:
precision = 18;
break;
}
len = slprintf(buf, 16, "NUMERIC(%d,%d)", precision, -var->sqlscale);
add_index_stringl(return_value, 4, s, len, 1);
add_assoc_stringl(return_value, "type", s, len, 1);
} else {
switch (var->sqltype & ~1) {
case SQL_TEXT:
s = "CHAR";
break;
case SQL_VARYING:
s = "VARCHAR";
break;
case SQL_SHORT:
s = "SMALLINT";
break;
case SQL_LONG:
s = "INTEGER";
break;
case SQL_FLOAT:
s = "FLOAT"; break;
case SQL_DOUBLE:
case SQL_D_FLOAT:
s = "DOUBLE PRECISION"; break;
case SQL_INT64:
s = "BIGINT";
break;
case SQL_TIMESTAMP:
s = "TIMESTAMP";
break;
case SQL_TYPE_DATE:
s = "DATE";
break;
case SQL_TYPE_TIME:
s = "TIME";
break;
case SQL_BLOB:
s = "BLOB";
break;
case SQL_ARRAY:
s = "ARRAY";
break;
/* FIXME: provide more detailed information about the field type, field size
* and array dimensions */
case SQL_QUAD:
s = "QUAD";
break;
}
add_index_string(return_value, 4, s, 1);
add_assoc_string(return_value, "type", s, 1);
}
}
/* }}} */
/* {{{ proto array ibase_field_info(resource query_result, int field_number)
Get information about a field */
PHP_FUNCTION(ibase_field_info)
{
zval *result_arg;
long field_arg;
int type;
XSQLDA *sqlda;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl", &result_arg, &field_arg) == FAILURE) {
return;
}
zend_list_find(Z_RESVAL_P(result_arg), &type);
if (type == le_query) {
ibase_query *ib_query;
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &result_arg, -1, LE_QUERY, le_query);
sqlda = ib_query->out_sqlda;
} else {
ibase_result *ib_result;
ZEND_FETCH_RESOURCE(ib_result, ibase_result *, &result_arg, -1, LE_RESULT, le_result);
sqlda = ib_result->out_sqlda;
}
if (sqlda == NULL) {
_php_ibase_module_error("Trying to get field info from a non-select query" TSRMLS_CC);
RETURN_FALSE;
}
if (field_arg < 0 || field_arg >= sqlda->sqld) {
RETURN_FALSE;
}
_php_ibase_field_info(return_value, sqlda->sqlvar + field_arg);
}
/* }}} */
/* {{{ proto int ibase_num_params(resource query)
Get the number of params in a prepared query */
PHP_FUNCTION(ibase_num_params)
{
zval *result;
ibase_query *ib_query;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &result) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &result, -1, LE_QUERY, le_query);
if (ib_query->in_sqlda == NULL) {
RETURN_LONG(0);
} else {
RETURN_LONG(ib_query->in_sqlda->sqld);
}
}
/* }}} */
/* {{{ proto array ibase_param_info(resource query, int field_number)
Get information about a parameter */
PHP_FUNCTION(ibase_param_info)
{
zval *result_arg;
long field_arg;
ibase_query *ib_query;
RESET_ERRMSG;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rl", &result_arg, &field_arg) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(ib_query, ibase_query *, &result_arg, -1, LE_QUERY, le_query);
if (ib_query->in_sqlda == NULL) {
RETURN_FALSE;
}
if (field_arg < 0 || field_arg >= ib_query->in_sqlda->sqld) {
RETURN_FALSE;
}
_php_ibase_field_info(return_value,ib_query->in_sqlda->sqlvar + field_arg);
}
/* }}} */
#endif /* HAVE_IBASE */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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