Change a call of OPENSSL_strcasecmp to strcasecmp

[openssl.git] / crypto / mem_sec.c

diff --git a/crypto/mem_sec.c b/crypto/mem_sec.c
index 31c052512d513cc89d8e256cbe4fd2ce94c51c4a..4ccff34e5e8fa71a4929cfbc6008eaebe3bb3ddd 100644 (file)
--- a/crypto/mem_sec.c
+++ b/crypto/mem_sec.c
@@ -1,3 +1,12 @@
+/*
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
 /*
  * Copyright 2004-2014, Akamai Technologies. All Rights Reserved.
  * This file is distributed under the terms of the OpenSSL license.
@@ -25,7 +34,6 @@
 # include <sys/param.h>
 # include <sys/stat.h>
 # include <fcntl.h>
-# include "internal/threads.h"
 #endif
 
 #define CLEAR(p, s) OPENSSL_cleanse(p, s)
@@ -37,7 +45,6 @@
 static size_t secure_mem_used;
 
 static int secure_mem_initialized;
-static int too_late;
 
 static CRYPTO_RWLOCK *sec_malloc_lock = NULL;
 
@@ -48,7 +55,7 @@ static int sh_init(size_t size, int minsize);
 static char *sh_malloc(size_t size);
 static void sh_free(char *ptr);
 static void sh_done(void);
-static int sh_actual_size(char *ptr);
+static size_t sh_actual_size(char *ptr);
 static int sh_allocated(const char *ptr);
 #endif
 
@@ -57,10 +64,6 @@ int CRYPTO_secure_malloc_init(size_t size, int minsize)
 #ifdef IMPLEMENTED
     int ret = 0;
 
-    if (too_late)
-        return ret;
-
-    OPENSSL_assert(!secure_mem_initialized);
     if (!secure_mem_initialized) {
         sec_malloc_lock = CRYPTO_THREAD_lock_new();
         if (sec_malloc_lock == NULL)
@@ -75,13 +78,17 @@ int CRYPTO_secure_malloc_init(size_t size, int minsize)
 #endif /* IMPLEMENTED */
 }
 
-void CRYPTO_secure_malloc_done()
+int CRYPTO_secure_malloc_done()
 {
 #ifdef IMPLEMENTED
-    sh_done();
-    secure_mem_initialized = 0;
-    CRYPTO_THREAD_lock_free(sec_malloc_lock);
+    if (secure_mem_used == 0) {
+        sh_done();
+        secure_mem_initialized = 0;
+        CRYPTO_THREAD_lock_free(sec_malloc_lock);
+        return 1;
+    }
 #endif /* IMPLEMENTED */
+    return 0;
 }
 
 int CRYPTO_secure_malloc_initialized()
@@ -100,7 +107,6 @@ void *CRYPTO_secure_malloc(size_t num, const char *file, int line)
     size_t actual_size;
 
     if (!secure_mem_initialized) {
-        too_late = 1;
         return CRYPTO_malloc(num, file, line);
     }
     CRYPTO_THREAD_write_lock(sec_malloc_lock);
@@ -130,7 +136,7 @@ void CRYPTO_secure_free(void *ptr, const char *file, int line)
 
     if (ptr == NULL)
         return;
-    if (!secure_mem_initialized) {
+    if (!CRYPTO_secure_allocated(ptr)) {
         CRYPTO_free(ptr, file, line);
         return;
     }
@@ -208,9 +214,11 @@ size_t CRYPTO_secure_actual_size(void *ptr)
  * place.
  */
 
-# define TESTBIT(t, b)  (t[(b) >> 3] &  (1 << ((b) & 7)))
-# define SETBIT(t, b)   (t[(b) >> 3] |= (1 << ((b) & 7)))
-# define CLEARBIT(t, b) (t[(b) >> 3] &= (0xFF & ~(1 << ((b) & 7))))
+#define ONE ((size_t)1)
+
+# define TESTBIT(t, b)  (t[(b) >> 3] &  (ONE << ((b) & 7)))
+# define SETBIT(t, b)   (t[(b) >> 3] |= (ONE << ((b) & 7)))
+# define CLEARBIT(t, b) (t[(b) >> 3] &= (0xFF & ~(ONE << ((b) & 7))))
 
 #define WITHIN_ARENA(p) \
     ((char*)(p) >= sh.arena && (char*)(p) < &sh.arena[sh.arena_size])
@@ -229,21 +237,21 @@ typedef struct sh_st
     char* map_result;
     size_t map_size;
     char *arena;
-    int arena_size;
+    size_t arena_size;
     char **freelist;
-    int freelist_size;
-    int minsize;
+    ossl_ssize_t freelist_size;
+    size_t minsize;
     unsigned char *bittable;
     unsigned char *bitmalloc;
-    int bittable_size; /* size in bits */
+    size_t bittable_size; /* size in bits */
 } SH;
 
 static SH sh;
 
-static int sh_getlist(char *ptr)
+static size_t sh_getlist(char *ptr)
 {
-    int list = sh.freelist_size - 1;
-    int bit = (sh.arena_size + ptr - sh.arena) / sh.minsize;
+    ossl_ssize_t list = sh.freelist_size - 1;
+    size_t bit = (sh.arena_size + ptr - sh.arena) / sh.minsize;
 
     for (; bit; bit >>= 1, list--) {
         if (TESTBIT(sh.bittable, bit))
@@ -257,22 +265,22 @@ static int sh_getlist(char *ptr)
 
 static int sh_testbit(char *ptr, int list, unsigned char *table)
 {
-    int bit;
+    size_t bit;
 
     OPENSSL_assert(list >= 0 && list < sh.freelist_size);
     OPENSSL_assert(((ptr - sh.arena) & ((sh.arena_size >> list) - 1)) == 0);
-    bit = (1 << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
+    bit = (ONE << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
     OPENSSL_assert(bit > 0 && bit < sh.bittable_size);
     return TESTBIT(table, bit);
 }
 
 static void sh_clearbit(char *ptr, int list, unsigned char *table)
 {
-    int bit;
+    size_t bit;
 
     OPENSSL_assert(list >= 0 && list < sh.freelist_size);
     OPENSSL_assert(((ptr - sh.arena) & ((sh.arena_size >> list) - 1)) == 0);
-    bit = (1 << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
+    bit = (ONE << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
     OPENSSL_assert(bit > 0 && bit < sh.bittable_size);
     OPENSSL_assert(TESTBIT(table, bit));
     CLEARBIT(table, bit);
@@ -280,11 +288,11 @@ static void sh_clearbit(char *ptr, int list, unsigned char *table)
 
 static void sh_setbit(char *ptr, int list, unsigned char *table)
 {
-    int bit;
+    size_t bit;
 
     OPENSSL_assert(list >= 0 && list < sh.freelist_size);
     OPENSSL_assert(((ptr - sh.arena) & ((sh.arena_size >> list) - 1)) == 0);
-    bit = (1 << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
+    bit = (ONE << list) + ((ptr - sh.arena) / (sh.arena_size >> list));
     OPENSSL_assert(bit > 0 && bit < sh.bittable_size);
     OPENSSL_assert(!TESTBIT(table, bit));
     SETBIT(table, bit);
@@ -449,21 +457,21 @@ static int sh_allocated(const char *ptr)
 
 static char *sh_find_my_buddy(char *ptr, int list)
 {
-    int bit;
+    size_t bit;
     char *chunk = NULL;
 
-    bit = (1 << list) + (ptr - sh.arena) / (sh.arena_size >> list);
+    bit = (ONE << list) + (ptr - sh.arena) / (sh.arena_size >> list);
     bit ^= 1;
 
     if (TESTBIT(sh.bittable, bit) && !TESTBIT(sh.bitmalloc, bit))
-        chunk = sh.arena + ((bit & ((1 << list) - 1)) * (sh.arena_size >> list));
+        chunk = sh.arena + ((bit & ((ONE << list) - 1)) * (sh.arena_size >> list));
 
     return chunk;
 }
 
 static char *sh_malloc(size_t size)
 {
-    int list, slist;
+    ossl_ssize_t list, slist;
     size_t i;
     char *chunk;
 
@@ -522,7 +530,7 @@ static char *sh_malloc(size_t size)
 
 static void sh_free(char *ptr)
 {
-    int list;
+    size_t list;
     char *buddy;
 
     if (ptr == NULL)
@@ -559,7 +567,7 @@ static void sh_free(char *ptr)
     }
 }
 
-static int sh_actual_size(char *ptr)
+static size_t sh_actual_size(char *ptr)
 {
     int list;
 
@@ -568,6 +576,6 @@ static int sh_actual_size(char *ptr)
         return 0;
     list = sh_getlist(ptr);
     OPENSSL_assert(sh_testbit(ptr, list, sh.bittable));
-    return sh.arena_size / (1 << list);
+    return sh.arena_size / (ONE << list);
 }
 #endif /* IMPLEMENTED */