Continue the actual porting work on GitHub

1 files changed, 98 insertions, 0 deletions

diff --git a/memory_limit.c b/memory_limit.c
new file mode 100644
index 0000000..fa1683e
--- /dev/null
+++ b/memory_limit.c
@@ -0,0 +1,98 @@
+/*
+  +----------------------------------------------------------------------+
+  | Suhosin Version 1                                                    |
+  +----------------------------------------------------------------------+
+  | Copyright (c) 2006-2007 The Hardened-PHP Project                     |
+  | Copyright (c) 2007-2015 SektionEins GmbH                             |
+  +----------------------------------------------------------------------+
+  | 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.               |
+  +----------------------------------------------------------------------+
+  | Author: Stefan Esser <sesser@sektioneins.de>                         |
+  +----------------------------------------------------------------------+
+*/
+/*
+  $Id: memory_limit.c $ 
+*/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "php.h"
+#include "php_ini.h"
+#include "ext/standard/info.h"
+#include "php_suhosin7.h"
+
+
+/* {{{ PHP_INI_MH
+ */
+static PHP_INI_MH(suhosin_OnChangeMemoryLimit)
+{
+#if SIZEOF_LONG==8
+        long hard_memory_limit = 0x7fffffffffffffff;
+#elif SIZEOF_LONG==4
+        long hard_memory_limit = 0x7fffffff;
+#endif /* will produce a compile error or SIZEOF_LONG is not 4 or 8 */
+        if (stage == ZEND_INI_STAGE_RUNTIME) {
+                if (SUHOSIN7_G(memory_limit) > 0) {
+                        SUHOSIN7_G(hard_memory_limit) = SUHOSIN7_G(memory_limit);
+                } else if (SUHOSIN7_G(hard_memory_limit) == 0) {
+                        SUHOSIN7_G(hard_memory_limit) = PG(memory_limit);
+                }
+                hard_memory_limit = SUHOSIN7_G(hard_memory_limit);
+        } else {
+                SUHOSIN7_G(hard_memory_limit) = 0;
+        }
+        if (new_value) {
+                PG(memory_limit) = zend_atol(ZSTR_VAL(new_value), ZSTR_LEN(new_value));
+                if (hard_memory_limit > 0) {
+                        if (PG(memory_limit) > hard_memory_limit) {
+                                suhosin_log(S_MISC, "script tried to increase memory_limit to " ZEND_LONG_FMT " bytes which is above the allowed value", PG(memory_limit));
+                                if (!SUHOSIN7_G(simulation)) {
+                                        PG(memory_limit) = hard_memory_limit;
+                                        return FAILURE;
+                                }
+                        } else if (PG(memory_limit) < 0) {
+                                suhosin_log(S_MISC, "script tried to disable memory_limit by setting it to a negative value " ZEND_LONG_FMT " bytes which is not allowed", PG(memory_limit));
+                                if (!SUHOSIN7_G(simulation)) {
+                                        PG(memory_limit) = hard_memory_limit;
+                                        return FAILURE;
+                                }
+                        }
+                }
+        } else {
+                PG(memory_limit) = hard_memory_limit;
+        }
+        return zend_set_memory_limit(PG(memory_limit));
+}
+/* }}} */
+
+
+void suhosin_hook_memory_limit()
+{
+        zend_ini_entry *ini_entry;
+
+        /* check if we are compiled against memory_limit */
+        if ((ini_entry=zend_hash_str_find_ptr(EG(ini_directives), "memory_limit", sizeof("memory_limit")-1))) {
+                /* replace OnUpdateMemoryLimit handler */
+                ini_entry->on_modify = suhosin_OnChangeMemoryLimit;
+        }
+        
+}
+
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ * vim600: noet sw=4 ts=4 fdm=marker
+ * vim<600: noet sw=4 ts=4
+ */
+