X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fmem_sec.c;h=959c63714f32d40427c8a3375b79cab080f6ff63;hp=703ddad5e596b15684f439f16453d8a5c81145ad;hb=c1c1783d45a5e91951e6328a820939d0256c841c;hpb=bef7a81530442033ecb727196bddeb96d327acaf

diff --git a/crypto/mem_sec.c b/crypto/mem_sec.c
index 703ddad5e5..959c63714f 100644
--- a/crypto/mem_sec.c
+++ b/crypto/mem_sec.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
  * Copyright 2004-2014, Akamai Technologies. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
@@ -15,12 +15,16 @@
  * For details on that implementation, see below (look for uppercase
  * "SECURE HEAP IMPLEMENTATION").
  */
-#include <openssl/crypto.h>
 #include "e_os.h"
+#include <openssl/crypto.h>
 
 #include <string.h>
 
-#if defined(OPENSSL_SYS_LINUX) || defined(OPENSSL_SYS_UNIX)
+/* e_os.h includes unistd.h, which defines _POSIX_VERSION */
+#if !defined(OPENSSL_NO_SECURE_MEMORY) && defined(OPENSSL_SYS_UNIX) \
+    && ( (defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L) \
+         || defined(__sun) || defined(__hpux) || defined(__sgi) \
+         || defined(__osf__) )
 # define IMPLEMENTED
 # include <stdlib.h>
 # include <assert.h>
@@ -29,8 +33,10 @@
 # include <sys/mman.h>
 # if defined(OPENSSL_SYS_LINUX)
 #  include <sys/syscall.h>
-#  include <linux/mman.h>
-#  include <errno.h>
+#  if defined(SYS_mlock2)
+#   include <linux/mman.h>
+#   include <errno.h>
+#  endif
 # endif
 # include <sys/param.h>
 # include <sys/stat.h>
@@ -41,6 +47,9 @@
 #ifndef PAGE_SIZE
 # define PAGE_SIZE    4096
 #endif
+#if !defined(MAP_ANON) && defined(MAP_ANONYMOUS)
+# define MAP_ANON MAP_ANONYMOUS
+#endif
 
 #ifdef IMPLEMENTED
 static size_t secure_mem_used;
@@ -83,7 +92,7 @@ int CRYPTO_secure_malloc_init(size_t size, int minsize)
 #endif /* IMPLEMENTED */
 }
 
-int CRYPTO_secure_malloc_done()
+int CRYPTO_secure_malloc_done(void)
 {
 #ifdef IMPLEMENTED
     if (secure_mem_used == 0) {
@@ -97,7 +106,7 @@ int CRYPTO_secure_malloc_done()
     return 0;
 }
 
-int CRYPTO_secure_malloc_initialized()
+int CRYPTO_secure_malloc_initialized(void)
 {
 #ifdef IMPLEMENTED
     return secure_mem_initialized;
@@ -200,7 +209,7 @@ int CRYPTO_secure_allocated(const void *ptr)
 #endif /* IMPLEMENTED */
 }
 
-size_t CRYPTO_secure_used()
+size_t CRYPTO_secure_used(void)
 {
 #ifdef IMPLEMENTED
     return secure_mem_used;
@@ -374,7 +383,7 @@ static int sh_init(size_t size, int minsize)
     size_t pgsize;
     size_t aligned;
 
-    memset(&sh, 0, sizeof sh);
+    memset(&sh, 0, sizeof(sh));
 
     /* make sure size and minsize are powers of 2 */
     OPENSSL_assert(size > 0);
@@ -401,7 +410,7 @@ static int sh_init(size_t size, int minsize)
     for (i = sh.bittable_size; i; i >>= 1)
         sh.freelist_size++;
 
-    sh.freelist = OPENSSL_zalloc(sh.freelist_size * sizeof (char *));
+    sh.freelist = OPENSSL_zalloc(sh.freelist_size * sizeof(char *));
     OPENSSL_assert(sh.freelist != NULL);
     if (sh.freelist == NULL)
         goto err;
@@ -491,14 +500,14 @@ static int sh_init(size_t size, int minsize)
     return 0;
 }
 
-static void sh_done()
+static void sh_done(void)
 {
     OPENSSL_free(sh.freelist);
     OPENSSL_free(sh.bittable);
     OPENSSL_free(sh.bitmalloc);
     if (sh.map_result != NULL && sh.map_size)
         munmap(sh.map_result, sh.map_size);
-    memset(&sh, 0, sizeof sh);
+    memset(&sh, 0, sizeof(sh));
 }
 
 static int sh_allocated(const char *ptr)