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Cleanup (avoid reallocation)

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This commit is contained in:
Dmitry Stogov 2015-07-01 14:12:46 +03:00
parent 7d82deab35
commit 89b49b02fc
1 changed files with 10 additions and 11 deletions
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21
ext/mcrypt/mcrypt.c
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@ -600,7 +600,7 @@ PHP_FUNCTION(mcrypt_generic)
char *data;
size_t data_len;
php_mcrypt *pm;
char* data_s;
zend_string* data_str;
int block_size, data_size;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "rs", &mcryptind, &data, &data_len) == FAILURE) {
@ -621,21 +621,20 @@ PHP_FUNCTION(mcrypt_generic)
if (mcrypt_enc_is_block_mode(pm->td) == 1) { /* It's a block algorithm */
block_size = mcrypt_enc_get_block_size(pm->td);
data_size = ((((int)data_len - 1) / block_size) + 1) * block_size;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, data, data_len);
data_str = zend_string_alloc(data_size, 0);
memset(ZSTR_VAL(data_str), 0, data_size);
memcpy(ZSTR_VAL(data_str), data, data_len);
} else { /* It's not a block algorithm */
data_size = (int)data_len;
data_s = emalloc(data_size + 1);
memset(data_s, 0, data_size);
memcpy(data_s, data, data_len);
data_str = zend_string_alloc(data_size, 0);
memset(ZSTR_VAL(data_str), 0, data_size);
memcpy(ZSTR_VAL(data_str), data, data_len);
}
mcrypt_generic(pm->td, data_s, data_size);
data_s[data_size] = '\0';
mcrypt_generic(pm->td, ZSTR_VAL(data_str), data_size);
ZSTR_VAL(data_str)[data_size] = '\0';
RETVAL_STRINGL(data_s, data_size);
efree(data_s);
RETVAL_NEW_STR(data_str);
}
/* }}} */