vendor/openssl/1.1.1

6 files changed, 77 insertions, 517 deletions

diff --git a/crypto/buffer/Makefile b/crypto/buffer/Makefile
deleted file mode 100644
index 352efb841ffb..000000000000
--- a/crypto/buffer/Makefile
+++ /dev/null
@@ -1,99 +0,0 @@
-#
-# OpenSSL/crypto/buffer/Makefile
-#
-
-DIR=	buffer
-TOP=	../..
-CC=	cc
-INCLUDES= -I.. -I$(TOP) -I../../include
-CFLAG=-g
-MAKEFILE=	Makefile
-AR=		ar r
-
-CFLAGS= $(INCLUDES) $(CFLAG)
-
-GENERAL=Makefile
-TEST=
-APPS=
-
-LIB=$(TOP)/libcrypto.a
-LIBSRC= buffer.c buf_str.c buf_err.c
-LIBOBJ= buffer.o buf_str.o buf_err.o
-
-SRC= $(LIBSRC)
-
-EXHEADER= buffer.h
-HEADER=	$(EXHEADER)
-
-ALL=    $(GENERAL) $(SRC) $(HEADER)
-
-top:
-	(cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all)
-
-all:	lib
-
-lib:	$(LIBOBJ)
-	$(AR) $(LIB) $(LIBOBJ)
-	$(RANLIB) $(LIB) || echo Never mind.
-	@touch lib
-
-files:
-	$(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO
-
-links:
-	@$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER)
-	@$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST)
-	@$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS)
-
-install:
-	@[ -n "$(INSTALLTOP)" ] # should be set by top Makefile...
-	@headerlist="$(EXHEADER)"; for i in $$headerlist ; \
-	do  \
-	(cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \
-	chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \
-	done;
-
-tags:
-	ctags $(SRC)
-
-tests:
-
-lint:
-	lint -DLINT $(INCLUDES) $(SRC)>fluff
-
-update: depend
-
-depend:
-	@[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile...
-	$(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC)
-
-dclean:
-	$(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new
-	mv -f Makefile.new $(MAKEFILE)
-
-clean:
-	rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
-
-# DO NOT DELETE THIS LINE -- make depend depends on it.
-
-buf_err.o: ../../include/openssl/bio.h ../../include/openssl/buffer.h
-buf_err.o: ../../include/openssl/crypto.h ../../include/openssl/e_os2.h
-buf_err.o: ../../include/openssl/err.h ../../include/openssl/lhash.h
-buf_err.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
-buf_err.o: ../../include/openssl/ossl_typ.h ../../include/openssl/safestack.h
-buf_err.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
-buf_err.o: buf_err.c
-buf_str.o: ../../e_os.h ../../include/openssl/bio.h
-buf_str.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
-buf_str.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
-buf_str.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
-buf_str.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
-buf_str.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-buf_str.o: ../../include/openssl/symhacks.h ../cryptlib.h buf_str.c
-buffer.o: ../../e_os.h ../../include/openssl/bio.h
-buffer.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
-buffer.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
-buffer.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h
-buffer.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
-buffer.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
-buffer.o: ../../include/openssl/symhacks.h ../cryptlib.h buffer.c
diff --git a/crypto/buffer/buf_err.c b/crypto/buffer/buf_err.c
index 631eec38d712..7e6e53226a93 100644
--- a/crypto/buffer/buf_err.c
+++ b/crypto/buffer/buf_err.c
@@ -1,97 +1,38 @@
-/* crypto/buffer/buf_err.c */
-/* ====================================================================
- * Copyright (c) 1999-2006 The OpenSSL Project.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- *    software must display the following acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    openssl-core@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
 /*
- * NOTE: this file was auto generated by the mkerr.pl script: any changes
- * made to it will be overwritten when the script next updates this file,
- * only reason strings will be preserved.
+ * Generated by util/mkerr.pl DO NOT EDIT
+ * Copyright 1995-2017 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
  */
 
-#include <stdio.h>
 #include <openssl/err.h>
-#include <openssl/buffer.h>
+#include <openssl/buffererr.h>
 
-/* BEGIN ERROR CODES */
 #ifndef OPENSSL_NO_ERR
 
-# define ERR_FUNC(func) ERR_PACK(ERR_LIB_BUF,func,0)
-# define ERR_REASON(reason) ERR_PACK(ERR_LIB_BUF,0,reason)
-
-static ERR_STRING_DATA BUF_str_functs[] = {
-    {ERR_FUNC(BUF_F_BUF_MEMDUP), "BUF_memdup"},
-    {ERR_FUNC(BUF_F_BUF_MEM_GROW), "BUF_MEM_grow"},
-    {ERR_FUNC(BUF_F_BUF_MEM_GROW_CLEAN), "BUF_MEM_grow_clean"},
-    {ERR_FUNC(BUF_F_BUF_MEM_NEW), "BUF_MEM_new"},
-    {ERR_FUNC(BUF_F_BUF_STRDUP), "BUF_strdup"},
-    {ERR_FUNC(BUF_F_BUF_STRNDUP), "BUF_strndup"},
+static const ERR_STRING_DATA BUF_str_functs[] = {
+    {ERR_PACK(ERR_LIB_BUF, BUF_F_BUF_MEM_GROW, 0), "BUF_MEM_grow"},
+    {ERR_PACK(ERR_LIB_BUF, BUF_F_BUF_MEM_GROW_CLEAN, 0), "BUF_MEM_grow_clean"},
+    {ERR_PACK(ERR_LIB_BUF, BUF_F_BUF_MEM_NEW, 0), "BUF_MEM_new"},
     {0, NULL}
 };
 
-static ERR_STRING_DATA BUF_str_reasons[] = {
+static const ERR_STRING_DATA BUF_str_reasons[] = {
     {0, NULL}
 };
 
 #endif
 
-void ERR_load_BUF_strings(void)
+int ERR_load_BUF_strings(void)
 {
 #ifndef OPENSSL_NO_ERR
-
     if (ERR_func_error_string(BUF_str_functs[0].error) == NULL) {
-        ERR_load_strings(0, BUF_str_functs);
-        ERR_load_strings(0, BUF_str_reasons);
+        ERR_load_strings_const(BUF_str_functs);
+        ERR_load_strings_const(BUF_str_reasons);
     }
 #endif
+    return 1;
 }
diff --git a/crypto/buffer/buf_str.c b/crypto/buffer/buf_str.c
deleted file mode 100644
index fa0d608e76bb..000000000000
--- a/crypto/buffer/buf_str.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* crypto/buffer/buffer.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-#include "cryptlib.h"
-#include <limits.h>
-#include <openssl/buffer.h>
-
-size_t BUF_strnlen(const char *str, size_t maxlen)
-{
-    const char *p;
-
-    for (p = str; maxlen-- != 0 && *p != '\0'; ++p) ;
-
-    return p - str;
-}
-
-char *BUF_strdup(const char *str)
-{
-    if (str == NULL)
-        return NULL;
-    return BUF_strndup(str, strlen(str));
-}
-
-char *BUF_strndup(const char *str, size_t siz)
-{
-    char *ret;
-
-    if (str == NULL)
-        return NULL;
-
-    siz = BUF_strnlen(str, siz);
-
-    if (siz >= INT_MAX)
-        return NULL;
-
-    ret = OPENSSL_malloc(siz + 1);
-    if (ret == NULL) {
-        BUFerr(BUF_F_BUF_STRNDUP, ERR_R_MALLOC_FAILURE);
-        return NULL;
-    }
-
-    memcpy(ret, str, siz);
-    ret[siz] = '\0';
-
-    return (ret);
-}
-
-void *BUF_memdup(const void *data, size_t siz)
-{
-    void *ret;
-
-    if (data == NULL || siz >= INT_MAX)
-        return NULL;
-
-    ret = OPENSSL_malloc(siz);
-    if (ret == NULL) {
-        BUFerr(BUF_F_BUF_MEMDUP, ERR_R_MALLOC_FAILURE);
-        return NULL;
-    }
-    return memcpy(ret, data, siz);
-}
-
-size_t BUF_strlcpy(char *dst, const char *src, size_t size)
-{
-    size_t l = 0;
-    for (; size > 1 && *src; size--) {
-        *dst++ = *src++;
-        l++;
-    }
-    if (size)
-        *dst = '\0';
-    return l + strlen(src);
-}
-
-size_t BUF_strlcat(char *dst, const char *src, size_t size)
-{
-    size_t l = 0;
-    for (; size > 0 && *dst; size--, dst++)
-        l++;
-    return l + BUF_strlcpy(dst, src, size);
-}
diff --git a/crypto/buffer/buffer.c b/crypto/buffer/buffer.c
index eff3e081576c..72258abb9e5e 100644
--- a/crypto/buffer/buffer.c
+++ b/crypto/buffer/buffer.c
@@ -1,63 +1,14 @@
-/* crypto/buffer/buffer.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
  *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
+ * 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
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/buffer.h>
 
 /*
@@ -67,46 +18,72 @@
  */
 #define LIMIT_BEFORE_EXPANSION 0x5ffffffc
 
+BUF_MEM *BUF_MEM_new_ex(unsigned long flags)
+{
+    BUF_MEM *ret;
+
+    ret = BUF_MEM_new();
+    if (ret != NULL)
+        ret->flags = flags;
+    return ret;
+}
+
 BUF_MEM *BUF_MEM_new(void)
 {
     BUF_MEM *ret;
 
-    ret = OPENSSL_malloc(sizeof(BUF_MEM));
+    ret = OPENSSL_zalloc(sizeof(*ret));
     if (ret == NULL) {
         BUFerr(BUF_F_BUF_MEM_NEW, ERR_R_MALLOC_FAILURE);
-        return (NULL);
+        return NULL;
     }
-    ret->length = 0;
-    ret->max = 0;
-    ret->data = NULL;
-    return (ret);
+    return ret;
 }
 
 void BUF_MEM_free(BUF_MEM *a)
 {
     if (a == NULL)
         return;
-
     if (a->data != NULL) {
-        OPENSSL_cleanse(a->data, a->max);
-        OPENSSL_free(a->data);
+        if (a->flags & BUF_MEM_FLAG_SECURE)
+            OPENSSL_secure_clear_free(a->data, a->max);
+        else
+            OPENSSL_clear_free(a->data, a->max);
     }
     OPENSSL_free(a);
 }
 
-int BUF_MEM_grow(BUF_MEM *str, size_t len)
+/* Allocate a block of secure memory; copy over old data if there
+ * was any, and then free it. */
+static char *sec_alloc_realloc(BUF_MEM *str, size_t len)
+{
+    char *ret;
+
+    ret = OPENSSL_secure_malloc(len);
+    if (str->data != NULL) {
+        if (ret != NULL) {
+            memcpy(ret, str->data, str->length);
+            OPENSSL_secure_clear_free(str->data, str->length);
+            str->data = NULL;
+        }
+    }
+    return ret;
+}
+
+size_t BUF_MEM_grow(BUF_MEM *str, size_t len)
 {
     char *ret;
     size_t n;
 
     if (str->length >= len) {
         str->length = len;
-        return (len);
+        return len;
     }
     if (str->max >= len) {
-        memset(&str->data[str->length], 0, len - str->length);
+        if (str->data != NULL)
+            memset(&str->data[str->length], 0, len - str->length);
         str->length = len;
-        return (len);
+        return len;
     }
     /* This limit is sufficient to ensure (len+3)/3*4 < 2**31 */
     if (len > LIMIT_BEFORE_EXPANSION) {
@@ -114,8 +91,8 @@ int BUF_MEM_grow(BUF_MEM *str, size_t len)
         return 0;
     }
     n = (len + 3) / 3 * 4;
-    if (str->data == NULL)
-        ret = OPENSSL_malloc(n);
+    if ((str->flags & BUF_MEM_FLAG_SECURE))
+        ret = sec_alloc_realloc(str, n);
     else
         ret = OPENSSL_realloc(str->data, n);
     if (ret == NULL) {
@@ -127,23 +104,24 @@ int BUF_MEM_grow(BUF_MEM *str, size_t len)
         memset(&str->data[str->length], 0, len - str->length);
         str->length = len;
     }
-    return (len);
+    return len;
 }
 
-int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
+size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
 {
     char *ret;
     size_t n;
 
     if (str->length >= len) {
-        memset(&str->data[len], 0, str->length - len);
+        if (str->data != NULL)
+            memset(&str->data[len], 0, str->length - len);
         str->length = len;
-        return (len);
+        return len;
     }
     if (str->max >= len) {
         memset(&str->data[str->length], 0, len - str->length);
         str->length = len;
-        return (len);
+        return len;
     }
     /* This limit is sufficient to ensure (len+3)/3*4 < 2**31 */
     if (len > LIMIT_BEFORE_EXPANSION) {
@@ -151,10 +129,10 @@ int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
         return 0;
     }
     n = (len + 3) / 3 * 4;
-    if (str->data == NULL)
-        ret = OPENSSL_malloc(n);
+    if ((str->flags & BUF_MEM_FLAG_SECURE))
+        ret = sec_alloc_realloc(str, n);
     else
-        ret = OPENSSL_realloc_clean(str->data, str->max, n);
+        ret = OPENSSL_clear_realloc(str->data, str->max, n);
     if (ret == NULL) {
         BUFerr(BUF_F_BUF_MEM_GROW_CLEAN, ERR_R_MALLOC_FAILURE);
         len = 0;
@@ -164,7 +142,7 @@ int BUF_MEM_grow_clean(BUF_MEM *str, size_t len)
         memset(&str->data[str->length], 0, len - str->length);
         str->length = len;
     }
-    return (len);
+    return len;
 }
 
 void BUF_reverse(unsigned char *out, const unsigned char *in, size_t size)
diff --git a/crypto/buffer/buffer.h b/crypto/buffer/buffer.h
deleted file mode 100644
index efd240a5f91e..000000000000
--- a/crypto/buffer/buffer.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/* crypto/buffer/buffer.h */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to.  The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    "This product includes cryptographic software written by
- *     Eric Young (eay@cryptsoft.com)"
- *    The word 'cryptographic' can be left out if the rouines from the library
- *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- *    the apps directory (application code) you must include an acknowledgement:
- *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed.  i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#ifndef HEADER_BUFFER_H
-# define HEADER_BUFFER_H
-
-# include <openssl/ossl_typ.h>
-
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
-# include <stddef.h>
-
-# if !defined(NO_SYS_TYPES_H)
-#  include <sys/types.h>
-# endif
-
-/* Already declared in ossl_typ.h */
-/* typedef struct buf_mem_st BUF_MEM; */
-
-struct buf_mem_st {
-    size_t length;              /* current number of bytes */
-    char *data;
-    size_t max;                 /* size of buffer */
-};
-
-BUF_MEM *BUF_MEM_new(void);
-void BUF_MEM_free(BUF_MEM *a);
-int BUF_MEM_grow(BUF_MEM *str, size_t len);
-int BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
-size_t BUF_strnlen(const char *str, size_t maxlen);
-char *BUF_strdup(const char *str);
-
-/*
- * Like strndup, but in addition, explicitly guarantees to never read past the
- * first |siz| bytes of |str|.
- */
-char *BUF_strndup(const char *str, size_t siz);
-
-void *BUF_memdup(const void *data, size_t siz);
-void BUF_reverse(unsigned char *out, const unsigned char *in, size_t siz);
-
-/* safe string functions */
-size_t BUF_strlcpy(char *dst, const char *src, size_t siz);
-size_t BUF_strlcat(char *dst, const char *src, size_t siz);
-
-/* BEGIN ERROR CODES */
-/*
- * The following lines are auto generated by the script mkerr.pl. Any changes
- * made after this point may be overwritten when the script is next run.
- */
-void ERR_load_BUF_strings(void);
-
-/* Error codes for the BUF functions. */
-
-/* Function codes. */
-# define BUF_F_BUF_MEMDUP                                 103
-# define BUF_F_BUF_MEM_GROW                               100
-# define BUF_F_BUF_MEM_GROW_CLEAN                         105
-# define BUF_F_BUF_MEM_NEW                                101
-# define BUF_F_BUF_STRDUP                                 102
-# define BUF_F_BUF_STRNDUP                                104
-
-/* Reason codes. */
-
-#ifdef  __cplusplus
-}
-#endif
-#endif
diff --git a/crypto/buffer/build.info b/crypto/buffer/build.info
new file mode 100644
index 000000000000..54da1f92a834
--- /dev/null
+++ b/crypto/buffer/build.info
@@ -0,0 +1,2 @@
+LIBS=../../libcrypto
+SOURCE[../../libcrypto]=buffer.c buf_err.c