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ec7b5e0b19
php-src/Zend/zend_operators.c
Nikita Popov ec7b5e0b19 Fix incdec of ref object properties 
This fixes a number of infinite loops in the Symfony testsuite. It
took an obscene amount of time to track this down :/
2014-05-26 18:00:15 +02:00

2531 lines
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/*
+----------------------------------------------------------------------+
| Zend Engine |
+----------------------------------------------------------------------+
| Copyright (c) 1998-2014 Zend Technologies Ltd. (http://www.zend.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Andi Gutmans <andi@zend.com> |
| Zeev Suraski <zeev@zend.com> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#include <ctype.h>
#include "zend.h"
#include "zend_operators.h"
#include "zend_variables.h"
#include "zend_globals.h"
#include "zend_list.h"
#include "zend_API.h"
#include "zend_strtod.h"
#include "zend_exceptions.h"
#include "zend_closures.h"
#if ZEND_USE_TOLOWER_L
#include <locale.h>
static _locale_t current_locale = NULL;
/* this is true global! may lead to strange effects on ZTS, but so may setlocale() */
#define zend_tolower(c) _tolower_l(c, current_locale)
#else
#define zend_tolower(c) tolower(c)
#endif
#define TYPE_PAIR(t1,t2) (((t1) << 4) | (t2))
static const unsigned char tolower_map[256] = {
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f,
0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,
0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x5b,0x5c,0x5d,0x5e,0x5f,
0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,
0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7f,
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,
0xb0,0xb1,0xb2,0xb3,0xb4,0xb5,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf,
0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,
0xd0,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,0xd7,0xd8,0xd9,0xda,0xdb,0xdc,0xdd,0xde,0xdf,
0xe0,0xe1,0xe2,0xe3,0xe4,0xe5,0xe6,0xe7,0xe8,0xe9,0xea,0xeb,0xec,0xed,0xee,0xef,
0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfe,0xff
};
#define zend_tolower_ascii(c) (tolower_map[(unsigned char)(c)])
/**
* Functions using locale lowercase:
zend_binary_strncasecmp_l
zend_binary_strcasecmp_l
zend_binary_zval_strcasecmp
zend_binary_zval_strncasecmp
string_compare_function_ex
string_case_compare_function
* Functions using ascii lowercase:
zend_str_tolower_copy
zend_str_tolower_dup
zend_str_tolower
zend_binary_strcasecmp
zend_binary_strncasecmp
*/
ZEND_API int zend_atoi(const char *str, int str_len) /* {{{ */
{
int retval;
if (!str_len) {
str_len = strlen(str);
}
retval = strtol(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
/* break intentionally missing */
case 'm':
case 'M':
retval *= 1024;
/* break intentionally missing */
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return retval;
}
/* }}} */
ZEND_API long zend_atol(const char *str, int str_len) /* {{{ */
{
long retval;
if (!str_len) {
str_len = strlen(str);
}
retval = strtol(str, NULL, 0);
if (str_len>0) {
switch (str[str_len-1]) {
case 'g':
case 'G':
retval *= 1024;
/* break intentionally missing */
case 'm':
case 'M':
retval *= 1024;
/* break intentionally missing */
case 'k':
case 'K':
retval *= 1024;
break;
}
}
return retval;
}
/* }}} */
ZEND_API double zend_string_to_double(const char *number, zend_uint length) /* {{{ */
{
double divisor = 10.0;
double result = 0.0;
double exponent;
const char *end = number+length;
const char *digit = number;
if (!length) {
return result;
}
while (digit < end) {
if ((*digit <= '9' && *digit >= '0')) {
result *= 10;
result += *digit - '0';
} else if (*digit == '.') {
digit++;
break;
} else if (toupper(*digit) == 'E') {
exponent = (double) atoi(digit+1);
result *= pow(10.0, exponent);
return result;
} else {
return result;
}
digit++;
}
while (digit < end) {
if ((*digit <= '9' && *digit >= '0')) {
result += (*digit - '0') / divisor;
divisor *= 10;
} else if (toupper(*digit) == 'E') {
exponent = (double) atoi(digit+1);
result *= pow(10.0, exponent);
return result;
} else {
return result;
}
digit++;
}
return result;
}
/* }}} */
ZEND_API void convert_scalar_to_number(zval *op TSRMLS_DC) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_REFERENCE:
if (Z_REFCOUNT_P(op) == 1) {
ZVAL_UNREF(op);
} else {
Z_DELREF_P(op);
ZVAL_COPY_VALUE(op, Z_REFVAL_P(op));
}
goto try_again;
case IS_STRING:
{
zend_string *str;
str = Z_STR_P(op);
if ((Z_TYPE_INFO_P(op)=is_numeric_string(str->val, str->len, &Z_LVAL_P(op), &Z_DVAL_P(op), 1)) == 0) {
ZVAL_LONG(op, 0);
}
STR_RELEASE(str);
break;
}
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE:
{
long l = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, l);
}
break;
case IS_OBJECT:
convert_to_long_base(op, 10);
break;
}
}
/* }}} */
/* {{{ zendi_convert_scalar_to_number */
#define zendi_convert_scalar_to_number(op, holder, result) \
if (op==result) { \
if (Z_TYPE_P(op) != IS_LONG) { \
convert_scalar_to_number(op TSRMLS_CC); \
} \
} else { \
switch (Z_TYPE_P(op)) { \
case IS_STRING: \
{ \
if ((Z_TYPE_INFO(holder)=is_numeric_string(Z_STRVAL_P(op), Z_STRLEN_P(op), &Z_LVAL(holder), &Z_DVAL(holder), 1)) == 0) { \
ZVAL_LONG(&(holder), 0); \
} \
(op) = &(holder); \
break; \
} \
case IS_NULL: \
case IS_FALSE: \
ZVAL_LONG(&(holder), 0); \
(op) = &(holder); \
break; \
case IS_TRUE: \
ZVAL_LONG(&(holder), 1); \
(op) = &(holder); \
break; \
case IS_RESOURCE: \
ZVAL_LONG(&(holder), Z_RES_HANDLE_P(op)); \
(op) = &(holder); \
break; \
case IS_OBJECT: \
ZVAL_DUP(&(holder), op); \
convert_to_long_base(&(holder), 10); \
if (Z_TYPE(holder) == IS_LONG) { \
(op) = &(holder); \
} \
break; \
} \
}
/* }}} */
/* {{{ zendi_convert_to_long */
#define zendi_convert_to_long(op, holder, result) \
if (op == result) { \
convert_to_long(op); \
} else if (Z_TYPE_P(op) != IS_LONG) { \
switch (Z_TYPE_P(op)) { \
case IS_NULL: \
case IS_FALSE: \
ZVAL_LONG(&(holder), 0); \
break; \
case IS_TRUE: \
ZVAL_LONG(&(holder), 1); \
break; \
case IS_DOUBLE: \
ZVAL_LONG(&holder, zend_dval_to_lval(Z_DVAL_P(op)));\
break; \
case IS_STRING: \
ZVAL_LONG(&holder, strtol(Z_STRVAL_P(op), NULL, 10));\
break; \
case IS_ARRAY: \
ZVAL_LONG(&holder, zend_hash_num_elements(Z_ARRVAL_P(op))?1:0); \
break; \
case IS_OBJECT: \
ZVAL_DUP(&(holder), (op)); \
convert_to_long_base(&(holder), 10); \
break; \
case IS_RESOURCE: \
ZVAL_LONG(&holder, Z_RES_HANDLE_P(op)); \
break; \
default: \
zend_error(E_WARNING, "Cannot convert to ordinal value"); \
ZVAL_LONG(&holder, 0); \
break; \
} \
(op) = &(holder); \
}
/* }}} */
/* {{{ zendi_convert_to_boolean */
#define zendi_convert_to_boolean(op, holder, result) \
if (op==result) { \
convert_to_boolean(op); \
} else if (Z_TYPE_P(op) != IS_FALSE && \
Z_TYPE_P(op) != IS_TRUE) { \
switch (Z_TYPE_P(op)) { \
case IS_NULL: \
ZVAL_BOOL(&holder, 0); \
break; \
case IS_RESOURCE: \
ZVAL_BOOL(&holder, Z_RES_HANDLE_P(op) ? 1 : 0); \
break; \
case IS_LONG: \
ZVAL_BOOL(&holder, Z_LVAL_P(op) ? 1 : 0); \
break; \
case IS_DOUBLE: \
ZVAL_BOOL(&holder, Z_DVAL_P(op) ? 1 : 0); \
break; \
case IS_STRING: \
if (Z_STRLEN_P(op) == 0 \
|| (Z_STRLEN_P(op)==1 && Z_STRVAL_P(op)[0]=='0')) { \
ZVAL_BOOL(&holder, 0); \
} else { \
ZVAL_BOOL(&holder, 1); \
} \
break; \
case IS_ARRAY: \
ZVAL_BOOL(&holder, zend_hash_num_elements(Z_ARRVAL_P(op))?1:0); \
break; \
case IS_OBJECT: \
ZVAL_DUP(&(holder), (op)); \
convert_to_boolean(&(holder)); \
break; \
default: \
ZVAL_BOOL(&holder, 0); \
break; \
} \
(op) = &(holder); \
}
/* }}} */
/* {{{ convert_object_to_type */
#define convert_object_to_type(op, dst, ctype, conv_func) \
ZVAL_UNDEF(dst); \
if (Z_OBJ_HT_P(op)->cast_object) { \
if (Z_OBJ_HT_P(op)->cast_object(op, dst, ctype TSRMLS_CC) == FAILURE) { \
zend_error(E_RECOVERABLE_ERROR, \
"Object of class %s could not be converted to %s", Z_OBJCE_P(op)->name->val,\
zend_get_type_by_const(ctype)); \
} \
} else if (Z_OBJ_HT_P(op)->get) { \
zval *newop = Z_OBJ_HT_P(op)->get(op, dst TSRMLS_CC); \
if (Z_TYPE_P(newop) != IS_OBJECT) { \
/* for safety - avoid loop */ \
ZVAL_COPY_VALUE(dst, newop); \
conv_func(dst); \
} \
}
/* }}} */
ZEND_API void convert_to_long(zval *op) /* {{{ */
{
if (Z_TYPE_P(op) != IS_LONG) {
convert_to_long_base(op, 10);
}
}
/* }}} */
ZEND_API void convert_to_long_base(zval *op, int base) /* {{{ */
{
long tmp;
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_LONG(op, 0);
break;
case IS_TRUE:
ZVAL_LONG(op, 1);
break;
case IS_RESOURCE: {
long l = Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_LONG(op, l);
}
/* break missing intentionally */
Z_TYPE_INFO_P(op) = IS_LONG;
break;
case IS_LONG:
break;
case IS_DOUBLE:
ZVAL_LONG(op, zend_dval_to_lval(Z_DVAL_P(op)));
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_LONG(op, strtol(str->val, NULL, base));
STR_RELEASE(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_dtor(op);
ZVAL_LONG(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
TSRMLS_FETCH();
convert_object_to_type(op, &dst, IS_LONG, convert_to_long);
zval_dtor(op);
if (Z_TYPE(dst) == IS_LONG) {
ZVAL_COPY_VALUE(op, &dst);
} else {
zend_error(E_NOTICE, "Object of class %s could not be converted to int", Z_OBJCE_P(op)->name->val);
ZVAL_LONG(op, 1);
}
return;
}
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void convert_to_double(zval *op) /* {{{ */
{
double tmp;
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
ZVAL_DOUBLE(op, 0.0);
break;
case IS_TRUE:
ZVAL_DOUBLE(op, 1.0);
break;
case IS_RESOURCE: {
double d = (double) Z_RES_HANDLE_P(op);
zval_ptr_dtor(op);
ZVAL_DOUBLE(op, d);
}
break;
case IS_LONG:
ZVAL_DOUBLE(op, (double) Z_LVAL_P(op));
break;
case IS_DOUBLE:
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
ZVAL_DOUBLE(op, zend_strtod(str->val, NULL));
STR_RELEASE(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_dtor(op);
ZVAL_DOUBLE(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
TSRMLS_FETCH();
convert_object_to_type(op, &dst, IS_DOUBLE, convert_to_double);
zval_dtor(op);
if (Z_TYPE(dst) == IS_DOUBLE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
zend_error(E_NOTICE, "Object of class %s could not be converted to double", Z_OBJCE_P(op)->name->val);
ZVAL_DOUBLE(op, 1.0);
}
break;
}
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void convert_to_null(zval *op) /* {{{ */
{
if (Z_TYPE_P(op) == IS_OBJECT) {
if (Z_OBJ_HT_P(op)->cast_object) {
zval org;
TSRMLS_FETCH();
ZVAL_COPY_VALUE(&org, op);
if (Z_OBJ_HT_P(op)->cast_object(&org, op, IS_NULL TSRMLS_CC) == SUCCESS) {
zval_dtor(&org);
return;
}
ZVAL_COPY_VALUE(op, &org);
}
}
zval_dtor(op);
ZVAL_NULL(op);
}
/* }}} */
ZEND_API void convert_to_boolean(zval *op) /* {{{ */
{
int tmp;
switch (Z_TYPE_P(op)) {
case IS_FALSE:
case IS_TRUE:
break;
case IS_NULL:
ZVAL_BOOL(op, 0);
break;
case IS_RESOURCE: {
long l = (Z_RES_HANDLE_P(op) ? 1 : 0);
zval_ptr_dtor(op);
ZVAL_BOOL(op, l);
}
break;
case IS_LONG:
ZVAL_BOOL(op, Z_LVAL_P(op) ? 1 : 0);
break;
case IS_DOUBLE:
ZVAL_BOOL(op, Z_DVAL_P(op) ? 1 : 0);
break;
case IS_STRING:
{
zend_string *str = Z_STR_P(op);
if (str->len == 0
|| (str->len == 1 && str->val[0] == '0')) {
ZVAL_BOOL(op, 0);
} else {
ZVAL_BOOL(op, 1);
}
STR_RELEASE(str);
}
break;
case IS_ARRAY:
tmp = (zend_hash_num_elements(Z_ARRVAL_P(op))?1:0);
zval_dtor(op);
ZVAL_BOOL(op, tmp);
break;
case IS_OBJECT:
{
zval dst;
TSRMLS_FETCH();
convert_object_to_type(op, &dst, _IS_BOOL, convert_to_boolean);
zval_dtor(op);
if (Z_TYPE(dst) == IS_FALSE || Z_TYPE(dst) == IS_TRUE) {
ZVAL_COPY_VALUE(op, &dst);
} else {
ZVAL_BOOL(op, 1);
}
break;
}
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API void _convert_to_cstring(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
_convert_to_string(op ZEND_FILE_LINE_CC);
}
/* }}} */
ZEND_API void _convert_to_string(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE: {
TSRMLS_FETCH();
ZVAL_EMPTY_STRING(op);
break;
}
case IS_TRUE:
ZVAL_NEW_STR(op, STR_INIT("1", 1, 0));
break;
case IS_STRING:
break;
case IS_RESOURCE: {
char buf[sizeof("Resource id #") + MAX_LENGTH_OF_LONG];
int len = snprintf(buf, sizeof(buf), "Resource id #%ld", Z_RES_HANDLE_P(op));
ZVAL_NEW_STR(op, STR_INIT(buf, len, 0));
break;
}
case IS_LONG: {
ZVAL_NEW_STR(op, zend_long_to_str(Z_LVAL_P(op)));
break;
}
case IS_DOUBLE: {
zend_string *str;
double dval = Z_DVAL_P(op);
TSRMLS_FETCH();
str = zend_strpprintf(0, "%.*G", (int) EG(precision), dval);
/* %G already handles removing trailing zeros from the fractional part, yay */
ZVAL_NEW_STR(op, str);
break;
}
case IS_ARRAY:
zend_error(E_NOTICE, "Array to string conversion");
zval_dtor(op);
ZVAL_NEW_STR(op, STR_INIT("Array", sizeof("Array")-1, 0));
break;
case IS_OBJECT: {
zval dst;
TSRMLS_FETCH();
convert_object_to_type(op, &dst, IS_STRING, convert_to_string);
zval_dtor(op);
if (Z_TYPE(dst) == IS_STRING) {
ZVAL_COPY_VALUE(op, &dst);
} else {
zend_error(E_NOTICE, "Object of class %s to string conversion", Z_OBJCE_P(op)->name->val);
ZVAL_NEW_STR(op, STR_INIT("Object", sizeof("Object")-1, 0));
}
break;
}
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
static void convert_scalar_to_array(zval *op TSRMLS_DC) /* {{{ */
{
zval entry;
ZVAL_COPY_VALUE(&entry, op);
ZVAL_NEW_ARR(op);
zend_hash_init(Z_ARRVAL_P(op), 8, NULL, ZVAL_PTR_DTOR, 0);
zend_hash_index_update(Z_ARRVAL_P(op), 0, &entry);
}
/* }}} */
ZEND_API void convert_to_array(zval *op) /* {{{ */
{
TSRMLS_FETCH();
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
break;
/* OBJECTS_OPTIMIZE */
case IS_OBJECT:
if (Z_OBJCE_P(op) == zend_ce_closure) {
convert_scalar_to_array(op TSRMLS_CC);
} else {
if (Z_OBJ_HT_P(op)->get_properties) {
HashTable *obj_ht = Z_OBJ_HT_P(op)->get_properties(op TSRMLS_CC);
if (obj_ht) {
zval arr;
ZVAL_NEW_ARR(&arr);
zend_array_dup(Z_ARRVAL(arr), obj_ht);
zval_dtor(op);
ZVAL_COPY_VALUE(op, &arr);
return;
}
} else {
zval dst;
convert_object_to_type(op, &dst, IS_ARRAY, convert_to_array);
if (Z_TYPE(dst) == IS_ARRAY) {
zval_dtor(op);
ZVAL_COPY_VALUE(op, &dst);
return;
}
}
zval_dtor(op);
array_init(op);
}
break;
case IS_NULL:
ZVAL_NEW_ARR(op);
zend_hash_init(Z_ARRVAL_P(op), 8, NULL, ZVAL_PTR_DTOR, 0);
break;
default:
convert_scalar_to_array(op TSRMLS_CC);
break;
}
}
/* }}} */
ZEND_API void convert_to_object(zval *op) /* {{{ */
{
TSRMLS_FETCH();
switch (Z_TYPE_P(op)) {
case IS_ARRAY:
{
HashTable *properties = emalloc(sizeof(HashTable));
zend_array *arr = Z_ARR_P(op);
memcpy(properties, Z_ARRVAL_P(op), sizeof(HashTable));
object_and_properties_init(op, zend_standard_class_def, properties);
if (--GC_REFCOUNT(arr) == 0) {
efree(arr);
}
break;
}
case IS_OBJECT:
break;
case IS_NULL:
object_init(op);
break;
default: {
zval tmp;
ZVAL_COPY_VALUE(&tmp, op);
object_init(op);
zend_hash_str_add_new(Z_OBJPROP_P(op), "scalar", sizeof("scalar")-1, &tmp);
break;
}
}
}
/* }}} */
ZEND_API void multi_convert_to_long_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_long_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API void multi_convert_to_double_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_double_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API void multi_convert_to_string_ex(int argc, ...) /* {{{ */
{
zval *arg;
va_list ap;
va_start(ap, argc);
while (argc--) {
arg = va_arg(ap, zval *);
convert_to_string_ex(arg);
}
va_end(ap);
}
/* }}} */
ZEND_API long _zval_get_long_func(zval *op TSRMLS_DC) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0;
case IS_TRUE:
return 1;
case IS_RESOURCE:
return Z_RES_HANDLE_P(op);
case IS_LONG:
return Z_LVAL_P(op);
case IS_DOUBLE:
return zend_dval_to_lval(Z_DVAL_P(op));
case IS_STRING:
return strtol(Z_STRVAL_P(op), NULL, 10);
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1 : 0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_LONG, convert_to_long);
if (Z_TYPE(dst) == IS_LONG) {
return Z_LVAL(dst);
} else {
zend_error(E_NOTICE, "Object of class %s could not be converted to int", Z_OBJCE_P(op)->name->val);
return 1;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API double _zval_get_double_func(zval *op TSRMLS_DC) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return 0.0;
case IS_TRUE:
return 1.0;
case IS_RESOURCE:
return (double) Z_RES_HANDLE_P(op);
case IS_LONG:
return (double) Z_LVAL_P(op);
case IS_DOUBLE:
return Z_DVAL_P(op);
case IS_STRING:
return zend_strtod(Z_STRVAL_P(op), NULL);
case IS_ARRAY:
return zend_hash_num_elements(Z_ARRVAL_P(op)) ? 1.0 : 0.0;
case IS_OBJECT:
{
zval dst;
convert_object_to_type(op, &dst, IS_DOUBLE, convert_to_double);
if (Z_TYPE(dst) == IS_DOUBLE) {
return Z_DVAL(dst);
} else {
zend_error(E_NOTICE, "Object of class %s could not be converted to double", Z_OBJCE_P(op)->name->val);
return 1.0;
}
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API zend_string *_zval_get_string_func(zval *op TSRMLS_DC) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op)) {
case IS_NULL:
case IS_FALSE:
return STR_EMPTY_ALLOC();
case IS_STRING:
return STR_COPY(Z_STR_P(op));
case IS_TRUE:
return STR_INIT("1", 1, 0);
case IS_RESOURCE: {
char buf[sizeof("Resource id #") + MAX_LENGTH_OF_LONG];
int len;
len = snprintf(buf, sizeof(buf), "Resource id #%ld", Z_RES_HANDLE_P(op));
return STR_INIT(buf, len, 0);
}
case IS_LONG: {
return zend_long_to_str(Z_LVAL_P(op));
}
case IS_DOUBLE: {
return zend_strpprintf(0, "%.*G", (int) EG(precision), Z_DVAL_P(op));
}
case IS_ARRAY:
zend_error(E_NOTICE, "Array to string conversion");
return STR_INIT("Array", sizeof("Array")-1, 0);
case IS_OBJECT: {
zval tmp;
if (Z_OBJ_HT_P(op)->cast_object) {
if (Z_OBJ_HT_P(op)->cast_object(op, &tmp, IS_STRING TSRMLS_CC) == SUCCESS) {
return Z_STR(tmp);
}
} else if (Z_OBJ_HT_P(op)->get) {
zval *z = Z_OBJ_HT_P(op)->get(op, &tmp TSRMLS_CC);
if (Z_TYPE_P(z) != IS_OBJECT) {
zend_string *str = zval_get_string(z);
zval_ptr_dtor(z);
return str;
}
zval_ptr_dtor(z);
}
zend_error(EG(exception) ? E_ERROR : E_RECOVERABLE_ERROR, "Object of class %s could not be converted to string", Z_OBJCE_P(op)->name->val);
return STR_EMPTY_ALLOC();
}
case IS_REFERENCE:
op = Z_REFVAL_P(op);
goto try_again;
EMPTY_SWITCH_DEFAULT_CASE()
}
}
/* }}} */
ZEND_API int add_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
long lval = Z_LVAL_P(op1) + Z_LVAL_P(op2);
/* check for overflow by comparing sign bits */
if ((Z_LVAL_P(op1) & LONG_SIGN_MASK) == (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != (lval & LONG_SIGN_MASK)) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) + (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lval);
}
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) + Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) + Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_ARRAY, IS_ARRAY):
if ((result == op1) && (result == op2)) {
/* $a += $a */
return SUCCESS;
}
if (result != op1) {
ZVAL_DUP(result, op1);
}
zend_hash_merge(Z_ARRVAL_P(result), Z_ARRVAL_P(op2), zval_add_ref, 0);
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_ADD);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int sub_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
long lval = Z_LVAL_P(op1) - Z_LVAL_P(op2);
/* check for overflow by comparing sign bits */
if ((Z_LVAL_P(op1) & LONG_SIGN_MASK) != (Z_LVAL_P(op2) & LONG_SIGN_MASK)
&& (Z_LVAL_P(op1) & LONG_SIGN_MASK) != (lval & LONG_SIGN_MASK)) {
ZVAL_DOUBLE(result, (double) Z_LVAL_P(op1) - (double) Z_LVAL_P(op2));
} else {
ZVAL_LONG(result, lval);
}
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) - Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) - Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_SUB);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int mul_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG): {
long overflow;
ZEND_SIGNED_MULTIPLY_LONG(Z_LVAL_P(op1),Z_LVAL_P(op2), Z_LVAL_P(result),Z_DVAL_P(result),overflow);
Z_TYPE_INFO_P(result) = overflow ? IS_DOUBLE : IS_LONG;
return SUCCESS;
}
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, ((double)Z_LVAL_P(op1)) * Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * ((double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, Z_DVAL_P(op1) * Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_MUL);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int pow_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
if (Z_LVAL_P(op2) >= 0) {
long l1 = 1, l2 = Z_LVAL_P(op1), i = Z_LVAL_P(op2);
if (i == 0) {
ZVAL_LONG(result, 1L);
return SUCCESS;
} else if (l2 == 0) {
ZVAL_LONG(result, 0);
return SUCCESS;
}
while (i >= 1) {
long overflow;
double dval = 0.0;
if (i % 2) {
--i;
ZEND_SIGNED_MULTIPLY_LONG(l1, l2, l1, dval, overflow);
if (overflow) {
ZVAL_DOUBLE(result, dval * pow(l2, i));
return SUCCESS;
}
} else {
i /= 2;
ZEND_SIGNED_MULTIPLY_LONG(l2, l2, l2, dval, overflow);
if (overflow) {
ZVAL_DOUBLE(result, (double)l1 * pow(dval, i));
return SUCCESS;
}
}
}
/* i == 0 */
ZVAL_LONG(result, l1);
} else {
ZVAL_DOUBLE(result, pow((double)Z_LVAL_P(op1), (double)Z_LVAL_P(op2)));
}
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
ZVAL_DOUBLE(result, pow((double)Z_LVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), (double)Z_LVAL_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
ZVAL_DOUBLE(result, pow(Z_DVAL_P(op1), Z_DVAL_P(op2)));
return SUCCESS;
default:
if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_POW);
if (Z_TYPE_P(op1) == IS_ARRAY) {
ZVAL_LONG(result, 0);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op1, op1_copy, result);
}
if (Z_TYPE_P(op2) == IS_ARRAY) {
ZVAL_LONG(result, 1L);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op2, op2_copy, result);
}
converted = 1;
} else {
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE;
}
}
}
}
/* }}} */
ZEND_API int div_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int converted = 0;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
if (Z_LVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE; /* division by zero */
} else if (Z_LVAL_P(op2) == -1 && Z_LVAL_P(op1) == LONG_MIN) {
/* Prevent overflow error/crash */
ZVAL_DOUBLE(result, (double) LONG_MIN / -1);
return SUCCESS;
}
if (Z_LVAL_P(op1) % Z_LVAL_P(op2) == 0) { /* integer */
ZVAL_LONG(result, Z_LVAL_P(op1) / Z_LVAL_P(op2));
} else {
ZVAL_DOUBLE(result, ((double) Z_LVAL_P(op1)) / Z_LVAL_P(op2));
}
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
if (Z_LVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE; /* division by zero */
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / (double)Z_LVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
if (Z_DVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE; /* division by zero */
}
ZVAL_DOUBLE(result, (double)Z_LVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
if (Z_DVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE; /* division by zero */
}
ZVAL_DOUBLE(result, Z_DVAL_P(op1) / Z_DVAL_P(op2));
return SUCCESS;
default:
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_DIV);
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
} else {
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE; /* unknown datatype */
}
}
}
}
/* }}} */
ZEND_API int mod_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_MOD);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
if (Z_LVAL_P(op2) == 0) {
zend_error(E_WARNING, "Division by zero");
ZVAL_BOOL(result, 0);
return FAILURE; /* modulus by zero */
}
if (Z_LVAL_P(op2) == -1) {
/* Prevent overflow error/crash if op1==LONG_MIN */
ZVAL_LONG(result, 0);
return SUCCESS;
}
ZVAL_LONG(result, op1_lval % Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
ZEND_API int boolean_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if ((Z_TYPE_P(op1) != IS_FALSE && Z_TYPE_P(op1) != IS_TRUE) ||
(Z_TYPE_P(op2) != IS_FALSE && Z_TYPE_P(op2) != IS_TRUE)) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_BOOL_XOR);
zendi_convert_to_boolean(op1, op1_copy, result);
op1_lval = Z_TYPE_P(op1) == IS_TRUE;
zendi_convert_to_boolean(op2, op2_copy, result);
} else {
op1_lval = Z_TYPE_P(op1) == IS_TRUE;
}
ZVAL_BOOL(result, op1_lval ^ (Z_TYPE_P(op2) == IS_TRUE));
return SUCCESS;
}
/* }}} */
ZEND_API int boolean_not_function(zval *result, zval *op1 TSRMLS_DC) /* {{{ */
{
zval op1_copy;
if (Z_TYPE_P(op1) == IS_FALSE) {
ZVAL_TRUE(result);
} else if (Z_TYPE_P(op1) == IS_TRUE) {
ZVAL_FALSE(result);
} else {
ZEND_TRY_UNARY_OBJECT_OPERATION(ZEND_BOOL_NOT);
zendi_convert_to_boolean(op1, op1_copy, result);
ZVAL_BOOL(result, Z_TYPE_P(op1) == IS_FALSE);
}
return SUCCESS;
}
/* }}} */
ZEND_API int bitwise_not_function(zval *result, zval *op1 TSRMLS_DC) /* {{{ */
{
switch (Z_TYPE_P(op1)) {
case IS_LONG:
ZVAL_LONG(result, ~Z_LVAL_P(op1));
return SUCCESS;
case IS_DOUBLE:
ZVAL_LONG(result, ~zend_dval_to_lval(Z_DVAL_P(op1)));
return SUCCESS;
case IS_STRING: {
int i;
zval op1_copy = *op1;
ZVAL_NEW_STR(result, STR_ALLOC(Z_STRLEN(op1_copy), 0));
for (i = 0; i < Z_STRLEN(op1_copy); i++) {
Z_STRVAL_P(result)[i] = ~Z_STRVAL(op1_copy)[i];
}
Z_STRVAL_P(result)[i] = 0;
return SUCCESS;
}
default:
ZEND_TRY_UNARY_OBJECT_OPERATION(ZEND_BW_NOT);
zend_error(E_ERROR, "Unsupported operand types");
return FAILURE;
}
}
/* }}} */
ZEND_API int bitwise_or_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) == IS_STRING && Z_TYPE_P(op2) == IS_STRING) {
zval *longer, *shorter;
zend_string *str;
int i;
if (Z_STRLEN_P(op1) >= Z_STRLEN_P(op2)) {
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = STR_ALLOC(Z_STRLEN_P(longer), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
str->val[i] = Z_STRVAL_P(longer)[i] | Z_STRVAL_P(shorter)[i];
}
memcpy(str->val + i, Z_STRVAL_P(longer) + i, Z_STRLEN_P(longer) - i + 1);
if (result==op1) {
STR_RELEASE(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_BW_OR);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
ZVAL_LONG(result, op1_lval | Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
ZEND_API int bitwise_and_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) == IS_STRING && Z_TYPE_P(op2) == IS_STRING) {
zval *longer, *shorter;
zend_string *str;
int i;
if (Z_STRLEN_P(op1) >= Z_STRLEN_P(op2)) {
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = STR_ALLOC(Z_STRLEN_P(shorter), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
str->val[i] = Z_STRVAL_P(shorter)[i] & Z_STRVAL_P(longer)[i];
}
str->val[i] = 0;
if (result==op1) {
STR_RELEASE(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_BW_AND);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
ZVAL_LONG(result, op1_lval & Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
ZEND_API int bitwise_xor_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) == IS_STRING && Z_TYPE_P(op2) == IS_STRING) {
zval *longer, *shorter;
zend_string *str;
int i;
if (Z_STRLEN_P(op1) >= Z_STRLEN_P(op2)) {
longer = op1;
shorter = op2;
} else {
longer = op2;
shorter = op1;
}
str = STR_ALLOC(Z_STRLEN_P(shorter), 0);
for (i = 0; i < Z_STRLEN_P(shorter); i++) {
str->val[i] = Z_STRVAL_P(shorter)[i] ^ Z_STRVAL_P(longer)[i];
}
str->val[i] = 0;
if (result==op1) {
STR_RELEASE(Z_STR_P(result));
}
ZVAL_NEW_STR(result, str);
return SUCCESS;
}
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_BW_XOR);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
ZVAL_LONG(result, op1_lval ^ Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
ZEND_API int shift_left_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_SL);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
ZVAL_LONG(result, op1_lval << Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
ZEND_API int shift_right_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
long op1_lval;
if (Z_TYPE_P(op1) != IS_LONG || Z_TYPE_P(op2) != IS_LONG) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_SR);
zendi_convert_to_long(op1, op1_copy, result);
op1_lval = Z_LVAL_P(op1);
zendi_convert_to_long(op2, op2_copy, result);
} else {
op1_lval = Z_LVAL_P(op1);
}
ZVAL_LONG(result, op1_lval >> Z_LVAL_P(op2));
return SUCCESS;
}
/* }}} */
/* must support result==op1 */
ZEND_API int add_char_to_string(zval *result, const zval *op1, const zval *op2) /* {{{ */
{
int length = Z_STRLEN_P(op1) + 1;
zend_string *buf = STR_REALLOC(Z_STR_P(op1), length, 0);
buf->val[length - 1] = (char) Z_LVAL_P(op2);
buf->val[length] = 0;
ZVAL_NEW_STR(result, buf);
return SUCCESS;
}
/* }}} */
/* must support result==op1 */
ZEND_API int add_string_to_string(zval *result, const zval *op1, const zval *op2) /* {{{ */
{
int op1_len = Z_STRLEN_P(op1);
int length = op1_len + Z_STRLEN_P(op2);
zend_string *buf = STR_REALLOC(Z_STR_P(op1), length, 0);
memcpy(buf->val + op1_len, Z_STRVAL_P(op2), Z_STRLEN_P(op2));
buf->val[length] = 0;
ZVAL_NEW_STR(result, buf);
return SUCCESS;
}
/* }}} */
ZEND_API int concat_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
int use_copy1 = 0, use_copy2 = 0;
if (Z_TYPE_P(op1) != IS_STRING || Z_TYPE_P(op2) != IS_STRING) {
ZEND_TRY_BINARY_OBJECT_OPERATION(ZEND_CONCAT);
if (Z_TYPE_P(op1) != IS_STRING) {
zend_make_printable_zval(op1, &op1_copy, &use_copy1);
}
if (Z_TYPE_P(op2) != IS_STRING) {
zend_make_printable_zval(op2, &op2_copy, &use_copy2);
}
}
if (use_copy1) {
/* We have created a converted copy of op1. Therefore, op1 won't become the result so
* we have to free it.
*/
if (result == op1) {
zval_dtor(op1);
}
op1 = &op1_copy;
}
if (use_copy2) {
op2 = &op2_copy;
}
if (result==op1 && !IS_INTERNED(Z_STR_P(op1))) { /* special case, perform operations on result */
uint op1_len = Z_STRLEN_P(op1);
uint op2_len = Z_STRLEN_P(op2);
uint res_len = op1_len + op2_len;
if (Z_STRLEN_P(result) < 0 || (int) (op1_len + op2_len) < 0) {
ZVAL_EMPTY_STRING(result);
zend_error(E_ERROR, "String size overflow");
}
Z_STR_P(result) = STR_REALLOC(Z_STR_P(result), res_len, 0 );
Z_TYPE_INFO_P(result) = IS_STRING_EX;
memcpy(Z_STRVAL_P(result) + op1_len, Z_STRVAL_P(op2), op2_len);
Z_STRVAL_P(result)[res_len]=0;
} else {
int length = Z_STRLEN_P(op1) + Z_STRLEN_P(op2);
zend_string *buf = STR_ALLOC(length, 0);
memcpy(buf->val, Z_STRVAL_P(op1), Z_STRLEN_P(op1));
memcpy(buf->val + Z_STRLEN_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op2));
buf->val[length] = 0;
ZVAL_NEW_STR(result, buf);
}
if (use_copy1) {
zval_dtor(op1);
}
if (use_copy2) {
zval_dtor(op2);
}
return SUCCESS;
}
/* }}} */
ZEND_API int string_compare_function_ex(zval *result, zval *op1, zval *op2, zend_bool case_insensitive TSRMLS_DC) /* {{{ */
{
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
if (case_insensitive) {
ZVAL_LONG(result, zend_binary_strcasecmp_l(str1->val, str1->len, str2->val, str1->len));
} else {
ZVAL_LONG(result, zend_binary_strcmp(str1->val, str1->len, str2->val, str2->len));
}
STR_RELEASE(str1);
STR_RELEASE(str2);
return SUCCESS;
}
/* }}} */
ZEND_API int string_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
return string_compare_function_ex(result, op1, op2, 0 TSRMLS_CC);
}
/* }}} */
ZEND_API int string_case_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
return string_compare_function_ex(result, op1, op2, 1 TSRMLS_CC);
}
/* }}} */
#if HAVE_STRCOLL
ZEND_API int string_locale_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zend_string *str1 = zval_get_string(op1);
zend_string *str2 = zval_get_string(op2);
ZVAL_LONG(result, strcoll(str1->val, str2->val));
STR_RELEASE(str1);
STR_RELEASE(str2);
return SUCCESS;
}
/* }}} */
#endif
ZEND_API int numeric_compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
zval op1_copy, op2_copy;
ZVAL_DUP_DEREF(&op1_copy, op1);
ZVAL_DUP_DEREF(&op2_copy, op2);
convert_to_double(&op1_copy);
convert_to_double(&op2_copy);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL(op1_copy)-Z_DVAL(op2_copy)));
return SUCCESS;
}
/* }}} */
static inline void zend_free_obj_get_result(zval *op TSRMLS_DC) /* {{{ */
{
if (Z_REFCOUNTED_P(op)) {
if (Z_REFCOUNT_P(op) == 0) {
zval_dtor(op);
} else {
zval_ptr_dtor(op);
}
}
}
/* }}} */
ZEND_API int compare_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
int ret;
int converted = 0;
zval op1_copy, op2_copy;
zval *op_free, tmp_free;
while (1) {
switch (TYPE_PAIR(Z_TYPE_P(op1), Z_TYPE_P(op2))) {
case TYPE_PAIR(IS_LONG, IS_LONG):
ZVAL_LONG(result, Z_LVAL_P(op1)>Z_LVAL_P(op2)?1:(Z_LVAL_P(op1)<Z_LVAL_P(op2)?-1:0));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_LONG):
Z_DVAL_P(result) = Z_DVAL_P(op1) - (double)Z_LVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
return SUCCESS;
case TYPE_PAIR(IS_LONG, IS_DOUBLE):
Z_DVAL_P(result) = (double)Z_LVAL_P(op1) - Z_DVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
return SUCCESS;
case TYPE_PAIR(IS_DOUBLE, IS_DOUBLE):
if (Z_DVAL_P(op1) == Z_DVAL_P(op2)) {
ZVAL_LONG(result, 0);
} else {
Z_DVAL_P(result) = Z_DVAL_P(op1) - Z_DVAL_P(op2);
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
}
return SUCCESS;
case TYPE_PAIR(IS_ARRAY, IS_ARRAY):
zend_compare_arrays(result, op1, op2 TSRMLS_CC);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_NULL):
case TYPE_PAIR(IS_NULL, IS_FALSE):
case TYPE_PAIR(IS_FALSE, IS_NULL):
case TYPE_PAIR(IS_FALSE, IS_FALSE):
case TYPE_PAIR(IS_TRUE, IS_TRUE):
ZVAL_LONG(result, 0);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_TRUE):
ZVAL_LONG(result, -1);
return SUCCESS;
case TYPE_PAIR(IS_TRUE, IS_NULL):
ZVAL_LONG(result, 1);
return SUCCESS;
case TYPE_PAIR(IS_STRING, IS_STRING):
zendi_smart_strcmp(result, op1, op2);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_STRING):
ZVAL_LONG(result, zend_binary_strcmp("", 0, Z_STRVAL_P(op2), Z_STRLEN_P(op2)));
return SUCCESS;
case TYPE_PAIR(IS_STRING, IS_NULL):
ZVAL_LONG(result, zend_binary_strcmp(Z_STRVAL_P(op1), Z_STRLEN_P(op1), "", 0));
return SUCCESS;
case TYPE_PAIR(IS_OBJECT, IS_NULL):
ZVAL_LONG(result, 1);
return SUCCESS;
case TYPE_PAIR(IS_NULL, IS_OBJECT):
ZVAL_LONG(result, -1);
return SUCCESS;
default:
if (Z_TYPE_P(op1) == IS_OBJECT && Z_OBJ_HANDLER_P(op1, compare)) {
return Z_OBJ_HANDLER_P(op1, compare)(result, op1, op2 TSRMLS_CC);
} else if (Z_TYPE_P(op2) == IS_OBJECT && Z_OBJ_HANDLER_P(op2, compare)) {
return Z_OBJ_HANDLER_P(op2, compare)(result, op1, op2 TSRMLS_CC);
}
if (Z_TYPE_P(op1) == IS_OBJECT && Z_TYPE_P(op2) == IS_OBJECT) {
if (Z_OBJ_P(op1) == Z_OBJ_P(op2)) {
/* object handles are identical, apparently this is the same object */
ZVAL_LONG(result, 0);
return SUCCESS;
}
if (Z_OBJ_HANDLER_P(op1, compare_objects) == Z_OBJ_HANDLER_P(op2, compare_objects)) {
ZVAL_LONG(result, Z_OBJ_HANDLER_P(op1, compare_objects)(op1, op2 TSRMLS_CC));
return SUCCESS;
}
}
if (Z_TYPE_P(op1) == IS_OBJECT) {
if (Z_OBJ_HT_P(op1)->get) {
zval rv;
op_free = Z_OBJ_HT_P(op1)->get(op1, &rv TSRMLS_CC);
ret = compare_function(result, op_free, op2 TSRMLS_CC);
zend_free_obj_get_result(op_free TSRMLS_CC);
return ret;
} else if (Z_TYPE_P(op2) != IS_OBJECT && Z_OBJ_HT_P(op1)->cast_object) {
ZVAL_UNDEF(&tmp_free);
if (Z_OBJ_HT_P(op1)->cast_object(op1, &tmp_free, ((Z_TYPE_P(op2) == IS_FALSE || Z_TYPE_P(op2) == IS_TRUE) ? _IS_BOOL : Z_TYPE_P(op2)) TSRMLS_CC) == FAILURE) {
ZVAL_LONG(result, 1);
zend_free_obj_get_result(&tmp_free TSRMLS_CC);
return SUCCESS;
}
ret = compare_function(result, &tmp_free, op2 TSRMLS_CC);
zend_free_obj_get_result(&tmp_free TSRMLS_CC);
return ret;
}
}
if (Z_TYPE_P(op2) == IS_OBJECT) {
if (Z_OBJ_HT_P(op2)->get) {
zval rv;
op_free = Z_OBJ_HT_P(op2)->get(op2, &rv TSRMLS_CC);
ret = compare_function(result, op1, op_free TSRMLS_CC);
zend_free_obj_get_result(op_free TSRMLS_CC);
return ret;
} else if (Z_TYPE_P(op1) != IS_OBJECT && Z_OBJ_HT_P(op2)->cast_object) {
ZVAL_UNDEF(&tmp_free);
if (Z_OBJ_HT_P(op2)->cast_object(op2, &tmp_free, ((Z_TYPE_P(op1) == IS_FALSE || Z_TYPE_P(op1) == IS_TRUE) ? _IS_BOOL : Z_TYPE_P(op1)) TSRMLS_CC) == FAILURE) {
ZVAL_LONG(result, -1);
zend_free_obj_get_result(&tmp_free TSRMLS_CC);
return SUCCESS;
}
ret = compare_function(result, op1, &tmp_free TSRMLS_CC);
zend_free_obj_get_result(&tmp_free TSRMLS_CC);
return ret;
} else if (Z_TYPE_P(op1) == IS_OBJECT) {
ZVAL_LONG(result, 1);
return SUCCESS;
}
}
if (Z_ISREF_P(op1)) {
op1 = Z_REFVAL_P(op1);
} else if (Z_ISREF_P(op2)) {
op2 = Z_REFVAL_P(op2);
} else if (!converted) {
if (Z_TYPE_P(op1) == IS_NULL || Z_TYPE_P(op1) == IS_FALSE) {
zendi_convert_to_boolean(op2, op2_copy, result);
ZVAL_LONG(result, (Z_TYPE_P(op2) == IS_TRUE) ? -1 : 0);
return SUCCESS;
} else if (Z_TYPE_P(op2) == IS_NULL || Z_TYPE_P(op2) == IS_FALSE) {
zendi_convert_to_boolean(op1, op1_copy, result);
ZVAL_LONG(result, (Z_TYPE_P(op1) == IS_TRUE) ? 1 : 0);
return SUCCESS;
} else if (Z_TYPE_P(op1) == IS_TRUE) {
zendi_convert_to_boolean(op2, op2_copy, result);
ZVAL_LONG(result, (Z_TYPE_P(op2) == IS_TRUE) ? 0 : 1);
return SUCCESS;
} else if (Z_TYPE_P(op2) == IS_TRUE) {
zendi_convert_to_boolean(op1, op1_copy, result);
ZVAL_LONG(result, (Z_TYPE_P(op1) == IS_TRUE) ? 0 : -1);
return SUCCESS;
} else {
zendi_convert_scalar_to_number(op1, op1_copy, result);
zendi_convert_scalar_to_number(op2, op2_copy, result);
converted = 1;
}
} else if (Z_TYPE_P(op1)==IS_ARRAY) {
ZVAL_LONG(result, 1);
return SUCCESS;
} else if (Z_TYPE_P(op2)==IS_ARRAY) {
ZVAL_LONG(result, -1);
return SUCCESS;
} else if (Z_TYPE_P(op1)==IS_OBJECT) {
ZVAL_LONG(result, 1);
return SUCCESS;
} else if (Z_TYPE_P(op2)==IS_OBJECT) {
ZVAL_LONG(result, -1);
return SUCCESS;
} else {
ZVAL_LONG(result, 0);
return FAILURE;
}
}
}
}
/* }}} */
static int hash_zval_identical_function(zval *z1, zval *z2) /* {{{ */
{
zval result;
TSRMLS_FETCH();
/* is_identical_function() returns 1 in case of identity and 0 in case
* of a difference;
* whereas this comparison function is expected to return 0 on identity,
* and non zero otherwise.
*/
ZVAL_DEREF(z1);
ZVAL_DEREF(z2);
if (is_identical_function(&result, z1, z2 TSRMLS_CC)==FAILURE) {
return 1;
}
return Z_TYPE(result) != IS_TRUE;
}
/* }}} */
ZEND_API int is_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (Z_TYPE_P(op1) != Z_TYPE_P(op2)) {
ZVAL_BOOL(result, 0);
return SUCCESS;
}
switch (Z_TYPE_P(op1)) {
case IS_NULL:
case IS_FALSE:
case IS_TRUE:
ZVAL_BOOL(result, 1);
break;
case IS_LONG:
ZVAL_BOOL(result, Z_LVAL_P(op1) == Z_LVAL_P(op2));
break;
case IS_RESOURCE:
ZVAL_BOOL(result, Z_RES_P(op1) == Z_RES_P(op2));
break;
case IS_DOUBLE:
ZVAL_BOOL(result, Z_DVAL_P(op1) == Z_DVAL_P(op2));
break;
case IS_STRING:
if (Z_STR_P(op1) == Z_STR_P(op2)) {
ZVAL_BOOL(result, 1);
} else {
ZVAL_BOOL(result, (Z_STRLEN_P(op1) == Z_STRLEN_P(op2))
&& (!memcmp(Z_STRVAL_P(op1), Z_STRVAL_P(op2), Z_STRLEN_P(op1))));
}
break;
case IS_ARRAY:
ZVAL_BOOL(result, Z_ARRVAL_P(op1) == Z_ARRVAL_P(op2) ||
zend_hash_compare(Z_ARRVAL_P(op1), Z_ARRVAL_P(op2), (compare_func_t) hash_zval_identical_function, 1 TSRMLS_CC)==0);
break;
case IS_OBJECT:
if (Z_OBJ_HT_P(op1) == Z_OBJ_HT_P(op2)) {
ZVAL_BOOL(result, Z_OBJ_P(op1) == Z_OBJ_P(op2));
} else {
ZVAL_BOOL(result, 0);
}
break;
default:
ZVAL_BOOL(result, 0);
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API int is_not_identical_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (is_identical_function(result, op1, op2 TSRMLS_CC) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, Z_TYPE_P(result) != IS_TRUE);
return SUCCESS;
}
/* }}} */
ZEND_API int is_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (compare_function(result, op1, op2 TSRMLS_CC) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) == 0));
return SUCCESS;
}
/* }}} */
ZEND_API int is_not_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (compare_function(result, op1, op2 TSRMLS_CC) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) != 0));
return SUCCESS;
}
/* }}} */
ZEND_API int is_smaller_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (compare_function(result, op1, op2 TSRMLS_CC) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) < 0));
return SUCCESS;
}
/* }}} */
ZEND_API int is_smaller_or_equal_function(zval *result, zval *op1, zval *op2 TSRMLS_DC) /* {{{ */
{
if (compare_function(result, op1, op2 TSRMLS_CC) == FAILURE) {
return FAILURE;
}
ZVAL_BOOL(result, (Z_LVAL_P(result) <= 0));
return SUCCESS;
}
/* }}} */
ZEND_API zend_bool instanceof_function_ex(const zend_class_entry *instance_ce, const zend_class_entry *ce, zend_bool interfaces_only TSRMLS_DC) /* {{{ */
{
zend_uint i;
for (i=0; i<instance_ce->num_interfaces; i++) {
if (instanceof_function(instance_ce->interfaces[i], ce TSRMLS_CC)) {
return 1;
}
}
if (!interfaces_only) {
while (instance_ce) {
if (instance_ce == ce) {
return 1;
}
instance_ce = instance_ce->parent;
}
}
return 0;
}
/* }}} */
ZEND_API zend_bool instanceof_function(const zend_class_entry *instance_ce, const zend_class_entry *ce TSRMLS_DC) /* {{{ */
{
return instanceof_function_ex(instance_ce, ce, 0 TSRMLS_CC);
}
/* }}} */
#define LOWER_CASE 1
#define UPPER_CASE 2
#define NUMERIC 3
static void increment_string(zval *str) /* {{{ */
{
int carry=0;
int pos=Z_STRLEN_P(str)-1;
char *s;
zend_string *t;
int last=0; /* Shut up the compiler warning */
int ch;
if (Z_STRLEN_P(str) == 0) {
STR_RELEASE(Z_STR_P(str));
Z_STR_P(str) = STR_INIT("1", sizeof("1")-1, 0);
Z_TYPE_INFO_P(str) = IS_STRING_EX;
return;
}
if (IS_INTERNED(Z_STR_P(str))) {
Z_STR_P(str) = STR_INIT(Z_STRVAL_P(str), Z_STRLEN_P(str), 0);
Z_TYPE_INFO_P(str) = IS_STRING_EX;
} else if (Z_REFCOUNT_P(str) > 1) {
Z_DELREF_P(str);
Z_STR_P(str) = STR_INIT(Z_STRVAL_P(str), Z_STRLEN_P(str), 0);
} else {
STR_FORGET_HASH_VAL(Z_STR_P(str));
}
s = Z_STRVAL_P(str);
while (pos >= 0) {
ch = s[pos];
if (ch >= 'a' && ch <= 'z') {
if (ch == 'z') {
s[pos] = 'a';
carry=1;
} else {
s[pos]++;
carry=0;
}
last=LOWER_CASE;
} else if (ch >= 'A' && ch <= 'Z') {
if (ch == 'Z') {
s[pos] = 'A';
carry=1;
} else {
s[pos]++;
carry=0;
}
last=UPPER_CASE;
} else if (ch >= '0' && ch <= '9') {
if (ch == '9') {
s[pos] = '0';
carry=1;
} else {
s[pos]++;
carry=0;
}
last = NUMERIC;
} else {
carry=0;
break;
}
if (carry == 0) {
break;
}
pos--;
}
if (carry) {
t = STR_ALLOC(Z_STRLEN_P(str)+1, 0);
memcpy(t->val + 1, Z_STRVAL_P(str), Z_STRLEN_P(str));
t->val[Z_STRLEN_P(str) + 1] = '\0';
switch (last) {
case NUMERIC:
t->val[0] = '1';
break;
case UPPER_CASE:
t->val[0] = 'A';
break;
case LOWER_CASE:
t->val[0] = 'a';
break;
}
STR_FREE(Z_STR_P(str));
ZVAL_NEW_STR(str, t);
}
}
/* }}} */
ZEND_API int increment_function(zval *op1) /* {{{ */
{
try_again:
switch (Z_TYPE_P(op1)) {
case IS_LONG:
if (Z_LVAL_P(op1) == LONG_MAX) {
/* switch to double */
double d = (double)Z_LVAL_P(op1);
ZVAL_DOUBLE(op1, d+1);
} else {
Z_LVAL_P(op1)++;
}
break;
case IS_DOUBLE:
Z_DVAL_P(op1) = Z_DVAL_P(op1) + 1;
break;
case IS_NULL:
ZVAL_LONG(op1, 1);
break;
case IS_STRING: {
long lval;
double dval;
switch (is_numeric_string(Z_STRVAL_P(op1), Z_STRLEN_P(op1), &lval, &dval, 0)) {
case IS_LONG:
STR_RELEASE(Z_STR_P(op1));
if (lval == LONG_MAX) {
/* switch to double */
double d = (double)lval;
ZVAL_DOUBLE(op1, d+1);
} else {
ZVAL_LONG(op1, lval+1);
}
break;
case IS_DOUBLE:
STR_RELEASE(Z_STR_P(op1));
ZVAL_DOUBLE(op1, dval+1);
break;
default:
/* Perl style string increment */
increment_string(op1);
break;
}
}
break;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
int res;
TSRMLS_FETCH();
ZVAL_LONG(&op2, 1);
res = Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_ADD, op1, op1, &op2 TSRMLS_CC);
zval_ptr_dtor(&op2);
return res;
}
return FAILURE;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
default:
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API int decrement_function(zval *op1) /* {{{ */
{
long lval;
double dval;
try_again:
switch (Z_TYPE_P(op1)) {
case IS_LONG:
if (Z_LVAL_P(op1) == LONG_MIN) {
double d = (double)Z_LVAL_P(op1);
ZVAL_DOUBLE(op1, d-1);
} else {
Z_LVAL_P(op1)--;
}
break;
case IS_DOUBLE:
Z_DVAL_P(op1) = Z_DVAL_P(op1) - 1;
break;
case IS_STRING: /* Like perl we only support string increment */
if (Z_STRLEN_P(op1) == 0) { /* consider as 0 */
STR_RELEASE(Z_STR_P(op1));
ZVAL_LONG(op1, -1);
break;
}
switch (is_numeric_string(Z_STRVAL_P(op1), Z_STRLEN_P(op1), &lval, &dval, 0)) {
case IS_LONG:
STR_RELEASE(Z_STR_P(op1));
if (lval == LONG_MIN) {
double d = (double)lval;
ZVAL_DOUBLE(op1, d-1);
} else {
ZVAL_LONG(op1, lval-1);
}
break;
case IS_DOUBLE:
STR_RELEASE(Z_STR_P(op1));
ZVAL_DOUBLE(op1, dval - 1);
break;
}
break;
case IS_OBJECT:
if (Z_OBJ_HANDLER_P(op1, do_operation)) {
zval op2;
int res;
TSRMLS_FETCH();
ZVAL_LONG(&op2, 1);
res = Z_OBJ_HANDLER_P(op1, do_operation)(ZEND_SUB, op1, op1, &op2 TSRMLS_CC);
zval_ptr_dtor(&op2);
return res;
}
return FAILURE;
case IS_REFERENCE:
op1 = Z_REFVAL_P(op1);
goto try_again;
default:
return FAILURE;
}
return SUCCESS;
}
/* }}} */
ZEND_API int zval_is_true(zval *op) /* {{{ */
{
convert_to_boolean(op);
return (Z_TYPE_P(op) == IS_TRUE ? 1 : 0);
}
/* }}} */
#ifdef ZEND_USE_TOLOWER_L
ZEND_API void zend_update_current_locale(void) /* {{{ */
{
current_locale = _get_current_locale();
}
/* }}} */
#endif
ZEND_API char *zend_str_tolower_copy(char *dest, const char *source, unsigned int length) /* {{{ */
{
register unsigned char *str = (unsigned char*)source;
register unsigned char *result = (unsigned char*)dest;
register unsigned char *end = str + length;
while (str < end) {
*result++ = zend_tolower_ascii(*str++);
}
*result = '\0';
return dest;
}
/* }}} */
ZEND_API char *zend_str_tolower_dup(const char *source, unsigned int length) /* {{{ */
{
return zend_str_tolower_copy((char *)emalloc(length+1), source, length);
}
/* }}} */
ZEND_API void zend_str_tolower(char *str, unsigned int length) /* {{{ */
{
register unsigned char *p = (unsigned char*)str;
register unsigned char *end = p + length;
while (p < end) {
*p = zend_tolower_ascii(*p);
p++;
}
}
/* }}} */
ZEND_API int zend_binary_strcmp(const char *s1, uint len1, const char *s2, uint len2) /* {{{ */
{
int retval;
if (s1 == s2) {
return 0;
}
retval = memcmp(s1, s2, MIN(len1, len2));
if (!retval) {
return (len1 - len2);
} else {
return retval;
}
}
/* }}} */
ZEND_API int zend_binary_strncmp(const char *s1, uint len1, const char *s2, uint len2, uint length) /* {{{ */
{
int retval;
if (s1 == s2) {
return 0;
}
retval = memcmp(s1, s2, MIN(length, MIN(len1, len2)));
if (!retval) {
return (MIN(length, len1) - MIN(length, len2));
} else {
return retval;
}
}
/* }}} */
ZEND_API int zend_binary_strcasecmp(const char *s1, uint len1, const char *s2, uint len2) /* {{{ */
{
int len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(len1, len2);
while (len--) {
c1 = zend_tolower_ascii(*(unsigned char *)s1++);
c2 = zend_tolower_ascii(*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return len1 - len2;
}
/* }}} */
ZEND_API int zend_binary_strncasecmp(const char *s1, uint len1, const char *s2, uint len2, uint length) /* {{{ */
{
int len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(length, MIN(len1, len2));
while (len--) {
c1 = zend_tolower_ascii(*(unsigned char *)s1++);
c2 = zend_tolower_ascii(*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return MIN(length, len1) - MIN(length, len2);
}
/* }}} */
ZEND_API int zend_binary_strcasecmp_l(const char *s1, uint len1, const char *s2, uint len2) /* {{{ */
{
int len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(len1, len2);
while (len--) {
c1 = zend_tolower((int)*(unsigned char *)s1++);
c2 = zend_tolower((int)*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return len1 - len2;
}
/* }}} */
ZEND_API int zend_binary_strncasecmp_l(const char *s1, uint len1, const char *s2, uint len2, uint length) /* {{{ */
{
int len;
int c1, c2;
if (s1 == s2) {
return 0;
}
len = MIN(length, MIN(len1, len2));
while (len--) {
c1 = zend_tolower((int)*(unsigned char *)s1++);
c2 = zend_tolower((int)*(unsigned char *)s2++);
if (c1 != c2) {
return c1 - c2;
}
}
return MIN(length, len1) - MIN(length, len2);
}
/* }}} */
ZEND_API int zend_binary_zval_strcmp(zval *s1, zval *s2) /* {{{ */
{
return zend_binary_strcmp(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2));
}
/* }}} */
ZEND_API int zend_binary_zval_strncmp(zval *s1, zval *s2, zval *s3) /* {{{ */
{
return zend_binary_strncmp(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2), Z_LVAL_P(s3));
}
/* }}} */
ZEND_API int zend_binary_zval_strcasecmp(zval *s1, zval *s2) /* {{{ */
{
return zend_binary_strcasecmp_l(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2));
}
/* }}} */
ZEND_API int zend_binary_zval_strncasecmp(zval *s1, zval *s2, zval *s3) /* {{{ */
{
return zend_binary_strncasecmp_l(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2), Z_LVAL_P(s3));
}
/* }}} */
ZEND_API void zendi_smart_strcmp(zval *result, zval *s1, zval *s2) /* {{{ */
{
int ret1, ret2;
int oflow1, oflow2;
long lval1 = 0, lval2 = 0;
double dval1 = 0.0, dval2 = 0.0;
if ((ret1=is_numeric_string_ex(Z_STRVAL_P(s1), Z_STRLEN_P(s1), &lval1, &dval1, 0, &oflow1)) &&
(ret2=is_numeric_string_ex(Z_STRVAL_P(s2), Z_STRLEN_P(s2), &lval2, &dval2, 0, &oflow2))) {
#if ULONG_MAX == 0xFFFFFFFF
if (oflow1 != 0 && oflow1 == oflow2 && dval1 - dval2 == 0. &&
((oflow1 == 1 && dval1 > 9007199254740991. /*0x1FFFFFFFFFFFFF*/)
|| (oflow1 == -1 && dval1 < -9007199254740991.))) {
#else
if (oflow1 != 0 && oflow1 == oflow2 && dval1 - dval2 == 0.) {
#endif
/* both values are integers overflown to the same side, and the
* double comparison may have resulted in crucial accuracy lost */
goto string_cmp;
}
if ((ret1==IS_DOUBLE) || (ret2==IS_DOUBLE)) {
if (ret1!=IS_DOUBLE) {
if (oflow2) {
/* 2nd operand is integer > LONG_MAX (oflow2==1) or < LONG_MIN (-1) */
ZVAL_LONG(result, -1 * oflow2);
return;
}
dval1 = (double) lval1;
} else if (ret2!=IS_DOUBLE) {
if (oflow1) {
ZVAL_LONG(result, oflow1);
return;
}
dval2 = (double) lval2;
} else if (dval1 == dval2 && !zend_finite(dval1)) {
/* Both values overflowed and have the same sign,
* so a numeric comparison would be inaccurate */
goto string_cmp;
}
Z_DVAL_P(result) = dval1 - dval2;
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_DVAL_P(result)));
} else { /* they both have to be long's */
ZVAL_LONG(result, lval1 > lval2 ? 1 : (lval1 < lval2 ? -1 : 0));
}
} else {
string_cmp:
Z_LVAL_P(result) = zend_binary_strcmp(Z_STRVAL_P(s1), Z_STRLEN_P(s1), Z_STRVAL_P(s2), Z_STRLEN_P(s2));
ZVAL_LONG(result, ZEND_NORMALIZE_BOOL(Z_LVAL_P(result)));
}
}
/* }}} */
static int hash_zval_compare_function(zval *z1, zval *z2 TSRMLS_DC) /* {{{ */
{
zval result;
if (compare_function(&result, z1, z2 TSRMLS_CC)==FAILURE) {
return 1;
}
return Z_LVAL(result);
}
/* }}} */
ZEND_API int zend_compare_symbol_tables_i(HashTable *ht1, HashTable *ht2 TSRMLS_DC) /* {{{ */
{
return ht1 == ht2 ? 0 : zend_hash_compare(ht1, ht2, (compare_func_t) hash_zval_compare_function, 0 TSRMLS_CC);
}
/* }}} */
ZEND_API void zend_compare_symbol_tables(zval *result, HashTable *ht1, HashTable *ht2 TSRMLS_DC) /* {{{ */
{
ZVAL_LONG(result, ht1 == ht2 ? 0 : zend_hash_compare(ht1, ht2, (compare_func_t) hash_zval_compare_function, 0 TSRMLS_CC));
}
/* }}} */
ZEND_API void zend_compare_arrays(zval *result, zval *a1, zval *a2 TSRMLS_DC) /* {{{ */
{
zend_compare_symbol_tables(result, Z_ARRVAL_P(a1), Z_ARRVAL_P(a2) TSRMLS_CC);
}
/* }}} */
ZEND_API void zend_compare_objects(zval *result, zval *o1, zval *o2 TSRMLS_DC) /* {{{ */
{
if (Z_OBJ_P(o1) == Z_OBJ_P(o2)) {
ZVAL_LONG(result, 0);
return;
}
if (Z_OBJ_HT_P(o1)->compare_objects == NULL) {
ZVAL_LONG(result, 1);
} else {
ZVAL_LONG(result, Z_OBJ_HT_P(o1)->compare_objects(o1, o2 TSRMLS_CC));
}
}
/* }}} */
ZEND_API void zend_locale_sprintf_double(zval *op ZEND_FILE_LINE_DC) /* {{{ */
{
zend_string *str;
TSRMLS_FETCH();
str = zend_strpprintf(0, "%.*G", (int) EG(precision), (double)Z_DVAL_P(op));
ZVAL_NEW_STR(op, str);
}
/* }}} */
ZEND_API zend_string *zend_long_to_str(long num) /* {{{ */
{
char buf[MAX_LENGTH_OF_LONG + 1];
char *res;
_zend_print_signed_to_buf(buf + sizeof(buf) - 1, num, unsigned long, res);
return STR_INIT(res, buf + sizeof(buf) - 1 - res, 0);
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
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