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php-src/ext/standard/var_unserializer.c
Sascha Schumann 01c980980c update
2002-05-04 17:17:54 +00:00

769 lines
16 KiB
C
Raw Blame History

/* Generated by re2c 0.5 on Sun Apr 28 19:47:31 2002 */
#line 1 "var_unserializer.re"
#include "php.h"
#include "ext/standard/php_var.h"
#include "php_incomplete_class.h"
/* {{{ reference-handling for unserializer: var_* */
#define VAR_ENTRIES_MAX 1024
typedef struct {
zval *data[VAR_ENTRIES_MAX];
int used_slots;
void *next;
} var_entries;
static inline void var_push(php_unserialize_data_t *var_hashx, zval **rval)
{
var_entries *var_hash = var_hashx->first, *prev = NULL;
while (var_hash && var_hash->used_slots == VAR_ENTRIES_MAX) {
prev = var_hash;
var_hash = var_hash->next;
}
if (!var_hash) {
var_hash = emalloc(sizeof(var_entries));
var_hash->used_slots = 0;
var_hash->next = 0;
if (!var_hashx->first)
var_hashx->first = var_hash;
else
prev->next = var_hash;
}
var_hash->data[var_hash->used_slots++] = *rval;
}
void var_replace(php_unserialize_data_t *var_hashx, zval *ozval, zval **nzval)
{
int i;
var_entries *var_hash = var_hashx->first;
while (var_hash) {
for (i = 0; i < var_hash->used_slots; i++) {
if (var_hash->data[i] == ozval) {
var_hash->data[i] = *nzval;
return;
}
}
var_hash = var_hash->next;
}
}
static int var_access(php_unserialize_data_t *var_hashx, int id, zval ***store)
{
var_entries *var_hash = var_hashx->first;
while (id >= VAR_ENTRIES_MAX && var_hash && var_hash->used_slots == VAR_ENTRIES_MAX) {
var_hash = var_hash->next;
id -= VAR_ENTRIES_MAX;
}
if (!var_hash) return !SUCCESS;
if (id >= var_hash->used_slots) return !SUCCESS;
*store = &var_hash->data[id];
return SUCCESS;
}
void var_destroy(php_unserialize_data_t *var_hashx)
{
void *next;
var_entries *var_hash = var_hashx->first;
while (var_hash) {
next = var_hash->next;
efree(var_hash);
var_hash = next;
}
}
/* }}} */
#define YYFILL(n) do { } while (0)
#define YYCTYPE unsigned char
#define YYCURSOR cursor
#define YYLIMIT limit
#define YYMARKER marker
#line 97
static inline int parse_iv2(const char *p, const char **q)
{
char cursor;
int result = 0;
int neg = 0;
switch (*p) {
case '-':
neg++;
/* fall-through */
case '+':
p++;
}
while (1) {
cursor = *p;
if (cursor >= '0' && cursor <= '9') {
result = result * 10 + cursor - '0';
} else {
break;
}
p++;
}
if (q) *q = p;
if (neg) return -result;
return result;
}
static inline int parse_iv(const char *p)
{
return parse_iv2(p, NULL);
}
#define UNSERIALIZE_PARAMETER zval **rval, const char **p, const char *max, php_unserialize_data_t *var_hash TSRMLS_DC
#define UNSERIALIZE_PASSTHRU rval, p, max, var_hash TSRMLS_CC
static inline int process_nested_data(UNSERIALIZE_PARAMETER, HashTable *ht, int elements)
{
while (elements-- > 0) {
zval *key, *data;
ALLOC_INIT_ZVAL(key);
if (!php_var_unserialize(&key, p, max, NULL TSRMLS_CC)) {
zval_dtor(key);
FREE_ZVAL(key);
return 0;
}
ALLOC_INIT_ZVAL(data);
if (!php_var_unserialize(&data, p, max, var_hash TSRMLS_CC)) {
zval_dtor(key);
FREE_ZVAL(key);
zval_dtor(data);
FREE_ZVAL(data);
return 0;
}
switch (Z_TYPE_P(key)) {
case IS_LONG:
zend_hash_index_update(ht, Z_LVAL_P(key), &data, sizeof(data), NULL);
break;
case IS_STRING:
zend_hash_update(ht, Z_STRVAL_P(key), Z_STRLEN_P(key) + 1, &data, sizeof(data), NULL);
break;
}
zval_dtor(key);
FREE_ZVAL(key);
}
return 1;
}
static inline int finish_nested_data(UNSERIALIZE_PARAMETER)
{
if (*((*p)++) == '}')
return 1;
#if SOMETHING_NEW_MIGHT_LEAD_TO_CRASH_ENABLE_IF_YOU_ARE_BRAVE
zval_ptr_dtor(rval);
#endif
return 0;
}
static inline int object_common1(UNSERIALIZE_PARAMETER, zend_class_entry *ce)
{
int elements;
elements = parse_iv2((*p) + 2, p);
(*p) += 2;
object_init_ex(*rval, ce);
return elements;
}
static inline int object_common2(UNSERIALIZE_PARAMETER, int elements)
{
zval *retval_ptr = NULL;
zval fname;
if (!process_nested_data(UNSERIALIZE_PASSTHRU, Z_OBJPROP_PP(rval), elements)) {
return 0;
}
INIT_PZVAL(&fname);
ZVAL_STRINGL(&fname, "__wakeup", sizeof("__wakeup") - 1, 0);
call_user_function_ex(CG(function_table), rval, &fname, &retval_ptr, 0, 0, 1, NULL TSRMLS_CC);
if (retval_ptr)
zval_ptr_dtor(&retval_ptr);
return finish_nested_data(UNSERIALIZE_PASSTHRU);
}
PHPAPI int php_var_unserialize(UNSERIALIZE_PARAMETER)
{
const unsigned char *cursor, *limit, *marker, *start;
zval **rval_ref;
limit = cursor = *p;
if (var_hash && cursor[0] != 'R') {
var_push(var_hash, rval);
}
start = cursor;
{
YYCTYPE yych;
unsigned int yyaccept;
static unsigned char yybm[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
128, 128, 128, 128, 128, 128, 128, 128,
128, 128, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
};
goto yy0;
yy1: ++YYCURSOR;
yy0:
if((YYLIMIT - YYCURSOR) < 5) YYFILL(5);
yych = *YYCURSOR;
if(yych <= 'd'){
if(yych <= 'R'){
if(yych <= 'N'){
if(yych <= 'M') goto yy15;
goto yy5;
} else {
if(yych <= 'O') goto yy12;
if(yych <= 'Q') goto yy15;
goto yy3;
}
} else {
if(yych <= 'a'){
if(yych <= '`') goto yy15;
goto yy10;
} else {
if(yych <= 'b') goto yy6;
if(yych <= 'c') goto yy15;
goto yy8;
}
}
} else {
if(yych <= 'r'){
if(yych <= 'i'){
if(yych <= 'h') goto yy15;
goto yy7;
} else {
if(yych == 'o') goto yy11;
goto yy15;
}
} else {
if(yych <= '|'){
if(yych <= 's') goto yy9;
goto yy15;
} else {
if(yych <= '}') goto yy13;
if(yych <= '\277') goto yy15;
}
}
}
yy2: YYCURSOR = YYMARKER;
switch(yyaccept){
case 0: goto yy4;
}
yy3: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy75;
yy4:
#line 404
{ return 0; }
yy5: yych = *++YYCURSOR;
if(yych == ';') goto yy73;
goto yy4;
yy6: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy67;
goto yy4;
yy7: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy61;
goto yy4;
yy8: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy44;
goto yy4;
yy9: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy37;
goto yy4;
yy10: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy30;
goto yy4;
yy11: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy23;
goto yy4;
yy12: yyaccept = 0;
yych = *(YYMARKER = ++YYCURSOR);
if(yych == ':') goto yy16;
goto yy4;
yy13: yych = *++YYCURSOR;
yy14:
#line 398
{
/* this is the case where we have less data than planned */
zend_error(E_NOTICE, "Unexpected end of serialized data");
return 0; /* not sure if it should be 0 or 1 here? */
}
yy15: yych = *++YYCURSOR;
goto yy4;
yy16: yych = *++YYCURSOR;
if(yybm[0+yych] & 128) goto yy18;
if(yych == '+') goto yy17;
if(yych != '-') goto yy2;
yy17: yych = *++YYCURSOR;
if(yybm[0+yych] & 128) goto yy18;
goto yy2;
yy18: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy19: if(yybm[0+yych] & 128) goto yy18;
if(yych != ':') goto yy2;
yy20: yych = *++YYCURSOR;
if(yych != '"') goto yy2;
yy21: yych = *++YYCURSOR;
yy22:
#line 330
{
int len;
int elements;
int len2;
char *class_name;
zend_class_entry *ce;
int incomplete_class = 0;
zval *user_func;
zval *retval_ptr;
zval **args[1];
zval *arg_func_name;
INIT_PZVAL(*rval);
len2 = len = parse_iv(start + 2);
if (len == 0)
return 0;
class_name = estrndup(YYCURSOR, len);
YYCURSOR += len;
while (len-- > 0) {
if (class_name[len] >= 'A' && class_name[len] <= 'Z') {
class_name[len] = class_name[len] - 'A' + 'a';
}
}
if (zend_hash_find(CG(class_table), class_name, len2 + 1, (void **) &ce) != SUCCESS) {
if ((PG(unserialize_callback_func) == NULL) || (PG(unserialize_callback_func)[0] == '\0')) {
incomplete_class = 1;
ce = PHP_IC_ENTRY;
} else {
MAKE_STD_ZVAL(user_func);
ZVAL_STRING(user_func, PG(unserialize_callback_func), 1);
args[0] = &arg_func_name;
MAKE_STD_ZVAL(arg_func_name);
ZVAL_STRING(arg_func_name, class_name, 1);
if (call_user_function_ex(CG(function_table), NULL, user_func, &retval_ptr, 1, args, 0, NULL TSRMLS_CC) != SUCCESS) {
zend_error(E_WARNING, "'unserialize_callback_func' defined (%s) but not found", user_func->value.str.val);
incomplete_class = 1;
ce = PHP_IC_ENTRY;
} else {
if (zend_hash_find(CG(class_table), class_name, len2 + 1, (void **) &ce) != SUCCESS) {
zend_error(E_WARNING, "'unserialize_callback_func' (%s) hasn't defined the class it was called for", user_func->value.str.val);
incomplete_class = 1;
ce = PHP_IC_ENTRY;
} else
efree(class_name);
}
}
} else
efree(class_name);
*p = YYCURSOR;
elements = object_common1(UNSERIALIZE_PASSTHRU, ce);
if (incomplete_class) {
php_store_class_name(*rval, class_name, len2);
efree(class_name);
}
return object_common2(UNSERIALIZE_PASSTHRU, elements);
}
yy23: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy24;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy25;
goto yy2;
}
yy24: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy25: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy26: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy25;
if(yych >= ';') goto yy2;
yy27: yych = *++YYCURSOR;
if(yych != '"') goto yy2;
yy28: yych = *++YYCURSOR;
yy29:
#line 322
{
INIT_PZVAL(*rval);
return object_common2(UNSERIALIZE_PASSTHRU,
object_common1(UNSERIALIZE_PASSTHRU, ZEND_STANDARD_CLASS_DEF_PTR));
}
yy30: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy31;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy32;
goto yy2;
}
yy31: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy32: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy33: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy32;
if(yych >= ';') goto yy2;
yy34: yych = *++YYCURSOR;
if(yych != '{') goto yy2;
yy35: yych = *++YYCURSOR;
yy36:
#line 304
{
int elements = parse_iv(start + 2);
*p = YYCURSOR;
INIT_PZVAL(*rval);
Z_TYPE_PP(rval) = IS_ARRAY;
ALLOC_HASHTABLE(Z_ARRVAL_PP(rval));
zend_hash_init(Z_ARRVAL_PP(rval), elements + 1, NULL, ZVAL_PTR_DTOR, 0);
if (!process_nested_data(UNSERIALIZE_PASSTHRU, Z_ARRVAL_PP(rval), elements)) {
return 0;
}
return finish_nested_data(UNSERIALIZE_PASSTHRU);
}
yy37: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy38;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy39;
goto yy2;
}
yy38: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy39: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy40: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy39;
if(yych >= ';') goto yy2;
yy41: yych = *++YYCURSOR;
if(yych != '"') goto yy2;
yy42: yych = *++YYCURSOR;
yy43:
#line 284
{
int len;
char *str;
len = parse_iv(start + 2);
if (len == 0) {
str = empty_string;
} else {
str = estrndup(YYCURSOR, len);
}
YYCURSOR += len + 2;
*p = YYCURSOR;
INIT_PZVAL(*rval);
ZVAL_STRINGL(*rval, str, len, 0);
return 1;
}
yy44: yych = *++YYCURSOR;
if(yych <= '-'){
if(yych == '+') goto yy45;
if(yych <= ',') goto yy2;
} else {
if(yych <= '.') goto yy48;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy46;
goto yy2;
}
yy45: yych = *++YYCURSOR;
if(yych == '.') goto yy48;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy46: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy47: if(yych <= '/'){
if(yych == '.') goto yy58;
goto yy2;
} else {
if(yych <= '9') goto yy46;
if(yych == ';') goto yy51;
goto yy2;
}
yy48: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy49: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy50: if(yych <= ';'){
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy49;
if(yych <= ':') goto yy2;
} else {
if(yych <= 'E'){
if(yych <= 'D') goto yy2;
goto yy53;
} else {
if(yych == 'e') goto yy53;
goto yy2;
}
}
yy51: yych = *++YYCURSOR;
yy52:
#line 277
{
*p = YYCURSOR;
INIT_PZVAL(*rval);
ZVAL_DOUBLE(*rval, atof(start + 2));
return 1;
}
yy53: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy54;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy55;
goto yy2;
}
yy54: yych = *++YYCURSOR;
if(yych <= ','){
if(yych == '+') goto yy57;
goto yy2;
} else {
if(yych <= '-') goto yy57;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
}
yy55: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy56: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy55;
if(yych == ';') goto yy51;
goto yy2;
yy57: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy55;
goto yy2;
yy58: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy59: ++YYCURSOR;
if((YYLIMIT - YYCURSOR) < 4) YYFILL(4);
yych = *YYCURSOR;
yy60: if(yych <= ';'){
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy59;
if(yych <= ':') goto yy2;
goto yy51;
} else {
if(yych <= 'E'){
if(yych <= 'D') goto yy2;
goto yy53;
} else {
if(yych == 'e') goto yy53;
goto yy2;
}
}
yy61: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy62;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy63;
goto yy2;
}
yy62: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy63: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy64: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy63;
if(yych != ';') goto yy2;
yy65: yych = *++YYCURSOR;
yy66:
#line 270
{
*p = YYCURSOR;
INIT_PZVAL(*rval);
ZVAL_LONG(*rval, parse_iv(start + 2));
return 1;
}
yy67: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy68;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy69;
goto yy2;
}
yy68: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy69: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy70: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy69;
if(yych != ';') goto yy2;
yy71: yych = *++YYCURSOR;
yy72:
#line 263
{
*p = YYCURSOR;
INIT_PZVAL(*rval);
ZVAL_BOOL(*rval, parse_iv(start + 2));
return 1;
}
yy73: yych = *++YYCURSOR;
yy74:
#line 256
{
*p = YYCURSOR;
INIT_PZVAL(*rval);
ZVAL_NULL(*rval);
return 1;
}
yy75: yych = *++YYCURSOR;
if(yych <= ','){
if(yych != '+') goto yy2;
} else {
if(yych <= '-') goto yy76;
if(yych <= '/') goto yy2;
if(yych <= '9') goto yy77;
goto yy2;
}
yy76: yych = *++YYCURSOR;
if(yych <= '/') goto yy2;
if(yych >= ':') goto yy2;
yy77: ++YYCURSOR;
if(YYLIMIT == YYCURSOR) YYFILL(1);
yych = *YYCURSOR;
yy78: if(yych <= '/') goto yy2;
if(yych <= '9') goto yy77;
if(yych != ';') goto yy2;
yy79: yych = *++YYCURSOR;
yy80:
#line 237
{
int id;
*p = YYCURSOR;
if (!var_hash) return 0;
id = parse_iv(start + 2) - 1;
if (id == -1 || var_access(var_hash, id, &rval_ref) != SUCCESS) {
return 0;
}
zval_ptr_dtor(rval);
*rval = *rval_ref;
(*rval)->refcount++;
(*rval)->is_ref = 1;
return 1;
}
}
#line 406
return 0;
}
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