diff options
Diffstat (limited to 'ext/standard/var.c')
| -rw-r--r-- | ext/standard/var.c | 676 |
1 files changed, 0 insertions, 676 deletions
diff --git a/ext/standard/var.c b/ext/standard/var.c deleted file mode 100644 index 66e9625f60..0000000000 --- a/ext/standard/var.c +++ /dev/null @@ -1,676 +0,0 @@ -/* - +----------------------------------------------------------------------+ - | PHP version 4.0 | - +----------------------------------------------------------------------+ - | Copyright (c) 1997-2001 The PHP Group | - +----------------------------------------------------------------------+ - | This source file is subject to version 2.02 of the PHP license, | - | that is bundled with this package in the file LICENSE, and is | - | available at through the world-wide-web at | - | http://www.php.net/license/2_02.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: Jani Lehtimäki <jkl@njet.net> | - | Thies C. Arntzen <thies@thieso.net> | - | Sascha Schumann <sascha@schumann.cx> | - +----------------------------------------------------------------------+ -*/ - -/* $Id$ */ - - -/* {{{ includes -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#include "php.h" -#include "php_string.h" -#include "php_var.h" -#include "php_smart_str.h" -#include "basic_functions.h" -#include "php_incomplete_class.h" - -#define COMMON ((*struc)->is_ref?"&":"") - -/* }}} */ -/* {{{ php_var_dump */ - -static int php_array_element_dump(zval **zv, int num_args, va_list args, zend_hash_key *hash_key) -{ - int level; - TSRMLS_FETCH(); - - level = va_arg(args, int); - - if (hash_key->nKeyLength==0) { /* numeric key */ - php_printf("%*c[%ld]=>\n", level + 1, ' ', hash_key->h); - } else { /* string key */ - php_printf("%*c[\"%s\"]=>\n", level + 1, ' ', hash_key->arKey); - } - php_var_dump(zv, level + 2 TSRMLS_CC); - return 0; -} - -void php_var_dump(zval **struc, int level TSRMLS_DC) -{ - HashTable *myht; - - if (level>1) { - php_printf("%*c", level-1, ' '); - } - - switch ((*struc)->type) { - case IS_BOOL: - php_printf("%sbool(%s)\n", COMMON, Z_LVAL_PP(struc)?"true":"false"); - break; - case IS_NULL: - php_printf("%sNULL\n", COMMON); - break; - case IS_LONG: - php_printf("%sint(%ld)\n", COMMON, Z_LVAL_PP(struc)); - break; - case IS_DOUBLE: { - - php_printf("%sfloat(%.*G)\n", COMMON, (int) EG(precision), Z_DVAL_PP(struc)); - } - break; - case IS_STRING: - php_printf("%sstring(%d) \"", COMMON, Z_STRLEN_PP(struc)); - PHPWRITE(Z_STRVAL_PP(struc), Z_STRLEN_PP(struc)); - PUTS("\"\n"); - break; - case IS_ARRAY: - myht = HASH_OF(*struc); - php_printf("%sarray(%d) {\n", COMMON, zend_hash_num_elements(myht)); - goto head_done; - case IS_OBJECT: - myht = Z_OBJPROP_PP(struc); - php_printf("%sobject(%s)(%d) {\n", COMMON, Z_OBJCE_PP(struc)->name, zend_hash_num_elements(myht)); -head_done: - zend_hash_apply_with_arguments(myht, (apply_func_args_t) php_array_element_dump, 1, level); - if (level>1) { - php_printf("%*c", level-1, ' '); - } - PUTS("}\n"); - break; - case IS_RESOURCE: { - char *type_name; - - type_name = zend_rsrc_list_get_rsrc_type(Z_LVAL_PP(struc) TSRMLS_CC); - php_printf("%sresource(%ld) of type (%s)\n", COMMON, Z_LVAL_PP(struc), type_name ? type_name : "Unknown"); - break; - } - default: - php_printf("%sUNKNOWN:0\n",COMMON); - break; - } -} - -/* }}} */ - - -/* {{{ proto void var_dump(mixed var) - Dumps a string representation of variable to output */ -PHP_FUNCTION(var_dump) -{ - zval ***args; - int argc; - int i; - - argc = ZEND_NUM_ARGS(); - - args = (zval ***)emalloc(argc * sizeof(zval **)); - if (ZEND_NUM_ARGS() == 0 || zend_get_parameters_array_ex(argc, args) == FAILURE) { - efree(args); - WRONG_PARAM_COUNT; - } - - for (i=0; i<argc; i++) - php_var_dump(args[i], 1 TSRMLS_CC); - - efree(args); -} -/* }}} */ - - -/* {{{ php_var_serialize */ - -static void php_var_serialize_intern(smart_str *buf, zval **struc, HashTable *var_hash TSRMLS_DC); - -static inline int php_add_var_hash(HashTable *var_hash, zval *var, void *var_old) -{ - ulong var_no; - char id[32], *p; - - p = smart_str_print_long(id, (long) var); - *p = '\0'; - - if (var_old && zend_hash_find(var_hash, id, p - id, var_old) == SUCCESS) { - if (!var->is_ref) { - /* we still need to bump up the counter, since non-refs will - be counted separately by unserializer */ - var_no = -1; - zend_hash_next_index_insert(var_hash, &var_no, sizeof(var_no), NULL); - } - return FAILURE; - } - - /* +1 because otherwise hash will think we are trying to store NULL pointer */ - var_no = zend_hash_num_elements(var_hash) + 1; - zend_hash_add(var_hash, id, p - id, &var_no, sizeof(var_no), NULL); - return SUCCESS; -} - -static inline void php_var_serialize_long(smart_str *buf, long val) -{ - smart_str_appendl(buf, "i:", 2); - smart_str_append_long(buf, val); - smart_str_appendc(buf, ';'); -} - -static inline void php_var_serialize_string(smart_str *buf, char *str, int len) -{ - smart_str_appendl(buf, "s:", 2); - smart_str_append_long(buf, len); - smart_str_appendl(buf, ":\"", 2); - smart_str_appendl(buf, str, len); - smart_str_appendl(buf, "\";", 2); -} - -static inline void php_var_serialize_class_name(smart_str *buf, zval **struc TSRMLS_DC) -{ - PHP_CLASS_ATTRIBUTES; - - PHP_SET_CLASS_ATTRIBUTES(*struc); - smart_str_appendl(buf, "O:", 2); - smart_str_append_long(buf, name_len); - smart_str_appendl(buf, ":\"", 2); - smart_str_appendl(buf, class_name, name_len); - smart_str_appendl(buf, "\":", 2); - PHP_CLEANUP_CLASS_ATTRIBUTES(); -} - -static void php_var_serialize_class(smart_str *buf, zval **struc, zval *retval_ptr, HashTable *var_hash TSRMLS_DC) -{ - int count = zend_hash_num_elements(HASH_OF(retval_ptr)); - - php_var_serialize_class_name(buf, struc TSRMLS_CC); - - smart_str_append_long(buf, count); - smart_str_appendl(buf, ":{", 2); - - if (count > 0) { - char *key; - zval **d, **name; - ulong index; - HashPosition pos; - int i; - - zend_hash_internal_pointer_reset_ex(HASH_OF(retval_ptr), &pos); - - for (;; zend_hash_move_forward_ex(HASH_OF(retval_ptr), &pos)) { - i = zend_hash_get_current_key_ex(HASH_OF(retval_ptr), &key, NULL, - &index, 0, &pos); - - if (i == HASH_KEY_NON_EXISTANT) - break; - - zend_hash_get_current_data_ex(HASH_OF(retval_ptr), - (void **) &name, &pos); - - if (Z_TYPE_PP(name) != IS_STRING) { - php_error(E_NOTICE, "__sleep should return an array only " - "containing the names of instance-variables to " - "serialize."); - continue; - } - - if (zend_hash_find(Z_OBJPROP_PP(struc), Z_STRVAL_PP(name), - Z_STRLEN_PP(name) + 1, (void *) &d) == SUCCESS) { - php_var_serialize_string(buf, Z_STRVAL_PP(name), - Z_STRLEN_PP(name)); - php_var_serialize_intern(buf, d, var_hash TSRMLS_CC); - } - } - } - smart_str_appendc(buf, '}'); -} - - -static void php_var_serialize_intern(smart_str *buf, zval **struc, HashTable *var_hash TSRMLS_DC) -{ - int i; - ulong *var_already; - HashTable *myht; - - if(var_hash - && php_add_var_hash(var_hash, *struc, (void *) &var_already) == FAILURE - && (*struc)->is_ref) { - smart_str_appendl(buf, "R:", 2); - smart_str_append_long(buf, *var_already); - smart_str_appendc(buf, ';'); - return; - } - - switch (Z_TYPE_PP(struc)) { - case IS_BOOL: - smart_str_appendl(buf, "b:", 2); - smart_str_append_long(buf, Z_LVAL_PP(struc)); - smart_str_appendc(buf, ';'); - return; - - case IS_NULL: - smart_str_appendl(buf, "N;", 2); - return; - - case IS_LONG: - php_var_serialize_long(buf, Z_LVAL_PP(struc)); - return; - - case IS_DOUBLE: { - char s[256]; - ulong slen; - - slen = sprintf(s, "d:%.*G;",(int) EG(precision), Z_DVAL_PP(struc)); - smart_str_appendl(buf, s, slen); - return; - } - - case IS_STRING: - php_var_serialize_string(buf, Z_STRVAL_PP(struc), Z_STRLEN_PP(struc)); - return; - - case IS_OBJECT: { - zval *retval_ptr = NULL; - zval fname; - int res; - - INIT_PZVAL(&fname); - ZVAL_STRINGL(&fname, "__sleep", sizeof("__sleep") - 1, 0); - res = call_user_function_ex(CG(function_table), struc, &fname, - &retval_ptr, 0, 0, 1, NULL TSRMLS_CC); - - if (res == SUCCESS) { - if (retval_ptr) { - if (HASH_OF(retval_ptr)) - php_var_serialize_class(buf, struc, retval_ptr, - var_hash TSRMLS_CC); - zval_ptr_dtor(&retval_ptr); - } - return; - } - if (retval_ptr) - zval_ptr_dtor(&retval_ptr); - /* fall-through */ - } - case IS_ARRAY: - myht = HASH_OF(*struc); - i = zend_hash_num_elements(myht); - if (Z_TYPE_PP(struc) == IS_ARRAY) { - smart_str_appendl(buf, "a:", 2); - } else { - php_var_serialize_class_name(buf, struc TSRMLS_CC); - } - smart_str_append_long(buf, i); - smart_str_appendl(buf, ":{", 2); - if (i > 0) { - char *key; - zval **data; - ulong index; - ulong key_len; - HashPosition pos; - - zend_hash_internal_pointer_reset_ex(myht, &pos); - for (;; zend_hash_move_forward_ex(myht, &pos)) { - i = zend_hash_get_current_key_ex(myht, &key, &key_len, - &index, 0, &pos); - if (i == HASH_KEY_NON_EXISTANT) - break; - - if (zend_hash_get_current_data_ex(myht, - (void **) &data, &pos) != SUCCESS - || !data - || data == struc) - continue; - - switch (i) { - case HASH_KEY_IS_LONG: - php_var_serialize_long(buf, index); - break; - case HASH_KEY_IS_STRING: - php_var_serialize_string(buf, key, key_len - 1); - break; - } - php_var_serialize_intern(buf, data, var_hash TSRMLS_CC); - } - } - smart_str_appendc(buf, '}'); - return; - default: - smart_str_appendl(buf, "i:0;", 4); - return; - } -} - -PHPAPI void php_var_serialize(smart_str *buf, zval **struc, HashTable *var_hash TSRMLS_DC) -{ - php_var_serialize_intern(buf, struc, var_hash TSRMLS_CC); - smart_str_0(buf); -} - -/* }}} */ -/* {{{ php_var_unserialize */ - -PHPAPI int php_var_unserialize(zval **rval, const char **p, const char *max, HashTable *var_hash TSRMLS_DC) -{ - const char *q; - char *str; - int i; - char cur; - ulong id; - HashTable *myht; - zval **rval_ref; - - if (var_hash && **p != 'R') { /* references aren't counted by serializer! */ - zend_hash_next_index_insert(var_hash, rval, sizeof(*rval), NULL); - } - - switch (cur = **p) { - case 'R': - if (*((*p) + 1) != ':') { - return 0; - } - q = *p; - while (**p && **p != ';') { - (*p)++; - } - if (**p != ';') { - return 0; - } - (*p)++; - id = atol(q + 2)-1; /* count starts with 1 */ - if (!var_hash) { - return 0; - } - if (zend_hash_index_find(var_hash, id, (void *)&rval_ref) != SUCCESS) { - return 0; - } - zval_ptr_dtor(rval); - *rval = *rval_ref; - (*rval)->refcount++; - (*rval)->is_ref = 1; - return 1; - - case 'N': - if (*((*p) + 1) != ';') { - return 0; - } - (*p)++; - INIT_PZVAL(*rval); - ZVAL_NULL(*rval); - (*p)++; - return 1; - - case 'b': /* bool */ - case 'i': - if (*((*p) + 1) != ':') { - return 0; - } - q = *p; - while (**p && **p != ';') { - (*p)++; - } - if (**p != ';') { - return 0; - } - (*p)++; - INIT_PZVAL(*rval); - if (cur == 'b') { - ZVAL_BOOL(*rval,atol(q + 2)); - } else { - ZVAL_LONG(*rval,atol(q + 2)); - } - return 1; - - case 'd': - if (*((*p) + 1) != ':') { - return 0; - } - q = *p; - while (**p && **p != ';') { - (*p)++; - } - if (**p != ';') { - return 0; - } - (*p)++; - INIT_PZVAL(*rval); - ZVAL_DOUBLE(*rval,atof(q + 2)); - return 1; - - case 's': - if (*((*p) + 1) != ':') { - return 0; - } - (*p) += 2; - q = *p; - while (**p && **p != ':') { - (*p)++; - } - if (**p != ':') { - return 0; - } - i = atoi(q); - if (i < 0 || (*p + 3 + i) > max || *((*p) + 1) != '\"' || - *((*p) + 2 + i) != '\"' || *((*p) + 3 + i) != ';') { - return 0; - } - (*p) += 2; - - if (i == 0) { - str = empty_string; - } else { - str = estrndup(*p,i); - } - (*p) += i + 2; - INIT_PZVAL(*rval); - ZVAL_STRINGL(*rval,str,i,0); - return 1; - - case 'a': - case 'o': - case 'O': { - zend_bool incomplete_class = 0; - char *class_name = NULL; - size_t name_len = 0; - int pi; - - INIT_PZVAL(*rval); - - if (cur == 'a') { - (*rval)->type = IS_ARRAY; - ALLOC_HASHTABLE((*rval)->value.ht); - myht = (*rval)->value.ht; - } else { - zend_class_entry *ce; - - if (cur == 'O') { /* php4 serialized - we get the class-name */ - if (*((*p) + 1) != ':') { - return 0; - } - (*p) += 2; - q = *p; - while (**p && **p != ':') { - (*p)++; - } - if (**p != ':') { - return 0; - } - name_len = i = atoi(q); - if (i < 0 || (*p + 3 + i) > max || *((*p) + 1) != '\"' || - *((*p) + 2 + i) != '\"' || *((*p) + 3 + i) != ':') { - return 0; - } - (*p) += 2; - class_name = emalloc(i + 1); - for(pi=0;pi<i;pi++) { - class_name[pi] = tolower((*p)[pi]); - } - class_name[i] = 0; - (*p) += i; - - if (zend_hash_find(EG(class_table), class_name, i+1, (void **) &ce)==FAILURE) { - incomplete_class = 1; - ce = PHP_IC_ENTRY; - } - } else { /* old php 3.0 data 'o' */ - ce = &zend_standard_class_def; - } - - /* OBJECTS_FIXME */ - object_init_ex(*rval, ce); - myht = Z_OBJPROP_PP(rval); - - if (incomplete_class) - php_store_class_name(*rval, class_name, name_len); - - if (class_name) - efree(class_name); - } - - (*p) += 2; - i = atoi(*p); - - if (cur == 'a') { /* object_init_ex will init the HashTable for objects! */ - zend_hash_init(myht, i + 1, NULL, ZVAL_PTR_DTOR, 0); - } - - while (**p && **p != ':') { - (*p)++; - } - if (**p != ':' || *((*p) + 1) != '{') { - return 0; - } - for ((*p) += 2; **p && **p != '}' && i > 0; i--) { - zval *key; - zval *data; - - ALLOC_INIT_ZVAL(key); - ALLOC_INIT_ZVAL(data); - - if (!php_var_unserialize(&key, p, max, NULL TSRMLS_CC)) { - zval_dtor(key); - FREE_ZVAL(key); - FREE_ZVAL(data); - return 0; - } - 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 (key->type) { - case IS_LONG: - zend_hash_index_update(myht, Z_LVAL_P(key), &data, sizeof(data), NULL); - break; - case IS_STRING: - zend_hash_update(myht, Z_STRVAL_P(key), Z_STRLEN_P(key) + 1, &data, sizeof(data), NULL); - break; - } - zval_dtor(key); - FREE_ZVAL(key); - } - - if ((*rval)->type == IS_OBJECT) { - zval *retval_ptr = NULL; - zval fname; - - 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 *((*p)++) == '}'; - } - } - - return 0; -} - -/* }}} */ -/* {{{ proto string serialize(mixed variable) - Returns a string representation of variable (which can later be unserialized) */ -PHP_FUNCTION(serialize) -{ - zval **struc; - php_serialize_data_t var_hash; - smart_str buf = {0}; - - if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &struc) == FAILURE) { - WRONG_PARAM_COUNT; - } - - return_value->type = IS_STRING; - return_value->value.str.val = NULL; - return_value->value.str.len = 0; - - PHP_VAR_SERIALIZE_INIT(var_hash); - php_var_serialize(&buf, struc, &var_hash TSRMLS_CC); - PHP_VAR_SERIALIZE_DESTROY(var_hash); - RETVAL_STRINGL(buf.c, buf.len, 0); -} - -/* }}} */ -/* {{{ proto mixed unserialize(string variable_representation) - Takes a string representation of variable and recreates it */ - - -PHP_FUNCTION(unserialize) -{ - zval **buf; - php_serialize_data_t var_hash; - - if (ZEND_NUM_ARGS() != 1 || zend_get_parameters_ex(1, &buf) == FAILURE) { - WRONG_PARAM_COUNT; - } - - if ((*buf)->type == IS_STRING) { - const char *p = (*buf)->value.str.val; - - if (Z_STRLEN_PP(buf) == 0) { - RETURN_FALSE; - } - - PHP_VAR_UNSERIALIZE_INIT(var_hash); - if (!php_var_unserialize(&return_value, &p, p + Z_STRLEN_PP(buf), &var_hash TSRMLS_CC)) { - PHP_VAR_UNSERIALIZE_DESTROY(var_hash); - zval_dtor(return_value); - php_error(E_NOTICE, "unserialize() failed at offset %d of %d bytes",p - Z_STRVAL_PP(buf),Z_STRLEN_PP(buf)); - RETURN_FALSE; - } - PHP_VAR_UNSERIALIZE_DESTROY(var_hash); - } else { - php_error(E_NOTICE, "argument passed to unserialize() is not an string"); - RETURN_FALSE; - } -} - -/* }}} */ - -/* - * Local variables: - * tab-width: 4 - * c-basic-offset: 4 - * End: - * vim600: sw=4 ts=4 tw=78 fdm=marker - * vim<600: sw=4 ts=4 tw=78 - */ |