X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fbio_ndef.c;h=0f206b24977e1e0124e1d2629ee72b9b4db65fb2;hp=370389b1e6e728b5635df41add3a22db6319d8e2;hb=8900f3e3982a016a25ad87a2270446e780038ec9;hpb=ccf529928f0d032d8a83b54c0f7c546e59669811;ds=sidebyside

diff --git a/crypto/asn1/bio_ndef.c b/crypto/asn1/bio_ndef.c
index 370389b1e6..0f206b2497 100644
--- a/crypto/asn1/bio_ndef.c
+++ b/crypto/asn1/bio_ndef.c
@@ -1,55 +1,10 @@
-/* bio_ndef.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
-/* ====================================================================
- * Copyright (c) 2008 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
- *    licensing@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.
- * ====================================================================
+/*
+ * Copyright 2008-2016 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
  */
 
 #include <openssl/asn1.h>
@@ -57,190 +12,188 @@
 #include <openssl/bio.h>
 #include <openssl/err.h>
 
-#ifndef OPENSSL_SYSNAME_NETWARE
-#include <memory.h>
-#endif
 #include <stdio.h>
 
 /* Experimental NDEF ASN1 BIO support routines */
 
-/* The usage is quite simple, initialize an ASN1 structure,
- * get a BIO from it then any data written through the BIO
- * will end up translated to approptiate format on the fly.
- * The data is streamed out and does *not* need to be
- * all held in memory at once.
- *
- * When the BIO is flushed the output is finalized and any
- * signatures etc written out.
- *
- * The BIO is a 'proper' BIO and can handle non blocking I/O
- * correctly.
- *
- * The usage is simple. The implementation is *not*...
+/*
+ * The usage is quite simple, initialize an ASN1 structure, get a BIO from it
+ * then any data written through the BIO will end up translated to
+ * appropriate format on the fly. The data is streamed out and does *not*
+ * need to be all held in memory at once. When the BIO is flushed the output
+ * is finalized and any signatures etc written out. The BIO is a 'proper'
+ * BIO and can handle non blocking I/O correctly. The usage is simple. The
+ * implementation is *not*...
  */
 
 /* BIO support data stored in the ASN1 BIO ex_arg */
 
-typedef struct ndef_aux_st
-	{
-	/* ASN1 structure this BIO refers to */
-	ASN1_VALUE *val;
-	const ASN1_ITEM *it;
-	/* Top of the BIO chain */
-	BIO *ndef_bio;
-	/* Output BIO */
-	BIO *out;
-	/* Boundary where content is inserted */
-	unsigned char **boundary;
-	/* DER buffer start */
-	unsigned char *derbuf;
-	} NDEF_SUPPORT;
+typedef struct ndef_aux_st {
+    /* ASN1 structure this BIO refers to */
+    ASN1_VALUE *val;
+    const ASN1_ITEM *it;
+    /* Top of the BIO chain */
+    BIO *ndef_bio;
+    /* Output BIO */
+    BIO *out;
+    /* Boundary where content is inserted */
+    unsigned char **boundary;
+    /* DER buffer start */
+    unsigned char *derbuf;
+} NDEF_SUPPORT;
 
 static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
-static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
+static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,
+                            void *parg);
 static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg);
-static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg);
+static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,
+                            void *parg);
 
 BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it)
-	{
-	NDEF_SUPPORT *ndef_aux = NULL;
-	BIO *asn_bio = NULL;
-	const ASN1_AUX *aux = it->funcs;
-	ASN1_STREAM_ARG sarg;
-
-	if (!aux || !aux->asn1_cb)
-		{
-		ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);
-		return NULL;
-		}
-	ndef_aux = OPENSSL_malloc(sizeof(NDEF_SUPPORT));
-	asn_bio = BIO_new(BIO_f_asn1());
-
-	/* ASN1 bio needs to be next to output BIO */
-
-	out = BIO_push(asn_bio, out);
-
-	if (!ndef_aux || !asn_bio || !out)
-		goto err;
-
-	BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);
-	BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);
-
-	/* Now let callback prepend any digest, cipher etc BIOs
-	 * ASN1 structure needs.
-	 */
-
-	sarg.out = out;
-	sarg.ndef_bio = NULL;
-	sarg.boundary = NULL;
-
-	if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
-		goto err;
-
-	ndef_aux->val = val;
-	ndef_aux->it = it;
-	ndef_aux->ndef_bio = sarg.ndef_bio;
-	ndef_aux->boundary = sarg.boundary;
-	ndef_aux->out = out;
-
-	BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
-
-	return sarg.ndef_bio;
-
-	err:
-	if (asn_bio)
-		BIO_free(asn_bio);
-	if (ndef_aux)
-		OPENSSL_free(ndef_aux);
-	return NULL;
-	}
+{
+    NDEF_SUPPORT *ndef_aux = NULL;
+    BIO *asn_bio = NULL;
+    const ASN1_AUX *aux = it->funcs;
+    ASN1_STREAM_ARG sarg;
+
+    if (!aux || !aux->asn1_cb) {
+        ASN1err(ASN1_F_BIO_NEW_NDEF, ASN1_R_STREAMING_NOT_SUPPORTED);
+        return NULL;
+    }
+    ndef_aux = OPENSSL_zalloc(sizeof(*ndef_aux));
+    asn_bio = BIO_new(BIO_f_asn1());
+    if (ndef_aux == NULL || asn_bio == NULL)
+        goto err;
+
+    /* ASN1 bio needs to be next to output BIO */
+    out = BIO_push(asn_bio, out);
+    if (out == NULL)
+        goto err;
+
+    BIO_asn1_set_prefix(asn_bio, ndef_prefix, ndef_prefix_free);
+    BIO_asn1_set_suffix(asn_bio, ndef_suffix, ndef_suffix_free);
+
+    /*
+     * Now let callback prepends any digest, cipher etc BIOs ASN1 structure
+     * needs.
+     */
+
+    sarg.out = out;
+    sarg.ndef_bio = NULL;
+    sarg.boundary = NULL;
+
+    if (aux->asn1_cb(ASN1_OP_STREAM_PRE, &val, it, &sarg) <= 0)
+        goto err;
+
+    ndef_aux->val = val;
+    ndef_aux->it = it;
+    ndef_aux->ndef_bio = sarg.ndef_bio;
+    ndef_aux->boundary = sarg.boundary;
+    ndef_aux->out = out;
+
+    BIO_ctrl(asn_bio, BIO_C_SET_EX_ARG, 0, ndef_aux);
+
+    return sarg.ndef_bio;
+
+ err:
+    BIO_free(asn_bio);
+    OPENSSL_free(ndef_aux);
+    return NULL;
+}
 
 static int ndef_prefix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
-	{
-	NDEF_SUPPORT *ndef_aux;
-	unsigned char *p;
-	int derlen;
+{
+    NDEF_SUPPORT *ndef_aux;
+    unsigned char *p;
+    int derlen;
+
+    if (!parg)
+        return 0;
 
-	if (!parg)
-		return 0;
+    ndef_aux = *(NDEF_SUPPORT **)parg;
 
-	ndef_aux = *(NDEF_SUPPORT **)parg;
+    derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
+    p = OPENSSL_malloc(derlen);
+    if (p == NULL)
+        return 0;
 
-	derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
-	p = OPENSSL_malloc(derlen);
-	ndef_aux->derbuf = p;
-	*pbuf = p;
-	derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
+    ndef_aux->derbuf = p;
+    *pbuf = p;
+    derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
 
-	if (!*ndef_aux->boundary)
-		return 0;
+    if (!*ndef_aux->boundary)
+        return 0;
 
-	*plen = *ndef_aux->boundary - *pbuf;
+    *plen = *ndef_aux->boundary - *pbuf;
 
-	return 1;
-	}
+    return 1;
+}
 
-static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
-	{
-	NDEF_SUPPORT *ndef_aux;
+static int ndef_prefix_free(BIO *b, unsigned char **pbuf, int *plen,
+                            void *parg)
+{
+    NDEF_SUPPORT *ndef_aux;
 
-	if (!parg)
-		return 0;
+    if (!parg)
+        return 0;
 
-	ndef_aux = *(NDEF_SUPPORT **)parg;
+    ndef_aux = *(NDEF_SUPPORT **)parg;
 
-	if (ndef_aux->derbuf)
-		OPENSSL_free(ndef_aux->derbuf);
+    OPENSSL_free(ndef_aux->derbuf);
 
-	ndef_aux->derbuf = NULL;
-	*pbuf = NULL;
-	*plen = 0;
-	return 1;
-	}
+    ndef_aux->derbuf = NULL;
+    *pbuf = NULL;
+    *plen = 0;
+    return 1;
+}
 
-static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen, void *parg)
-	{
-	NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;
-	if (!ndef_prefix_free(b, pbuf, plen, parg))
-		return 0;
-	OPENSSL_free(*pndef_aux);
-	*pndef_aux = NULL;
-	return 1;
-	}
+static int ndef_suffix_free(BIO *b, unsigned char **pbuf, int *plen,
+                            void *parg)
+{
+    NDEF_SUPPORT **pndef_aux = (NDEF_SUPPORT **)parg;
+    if (!ndef_prefix_free(b, pbuf, plen, parg))
+        return 0;
+    OPENSSL_free(*pndef_aux);
+    *pndef_aux = NULL;
+    return 1;
+}
 
 static int ndef_suffix(BIO *b, unsigned char **pbuf, int *plen, void *parg)
-	{
-	NDEF_SUPPORT *ndef_aux;
-	unsigned char *p;
-	int derlen;
-	const ASN1_AUX *aux;
-	ASN1_STREAM_ARG sarg;
-
-	if (!parg)
-		return 0;
-
-	ndef_aux = *(NDEF_SUPPORT **)parg;
-
-	aux = ndef_aux->it->funcs;
-
-	/* Finalize structures */
-	sarg.ndef_bio = ndef_aux->ndef_bio;
-	sarg.out = ndef_aux->out;
-	sarg.boundary = ndef_aux->boundary;
-	if (aux->asn1_cb(ASN1_OP_STREAM_POST,
-				&ndef_aux->val, ndef_aux->it, &sarg) <= 0)
-		return 0;
-
-	derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
-	p = OPENSSL_malloc(derlen);
-	ndef_aux->derbuf = p;
-	*pbuf = p;
-	derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
-
-	if (!*ndef_aux->boundary)
-		return 0;
-	*pbuf = *ndef_aux->boundary;
-	*plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);
-
-	return 1;
-	}
+{
+    NDEF_SUPPORT *ndef_aux;
+    unsigned char *p;
+    int derlen;
+    const ASN1_AUX *aux;
+    ASN1_STREAM_ARG sarg;
+
+    if (!parg)
+        return 0;
+
+    ndef_aux = *(NDEF_SUPPORT **)parg;
+
+    aux = ndef_aux->it->funcs;
+
+    /* Finalize structures */
+    sarg.ndef_bio = ndef_aux->ndef_bio;
+    sarg.out = ndef_aux->out;
+    sarg.boundary = ndef_aux->boundary;
+    if (aux->asn1_cb(ASN1_OP_STREAM_POST,
+                     &ndef_aux->val, ndef_aux->it, &sarg) <= 0)
+        return 0;
+
+    derlen = ASN1_item_ndef_i2d(ndef_aux->val, NULL, ndef_aux->it);
+    p = OPENSSL_malloc(derlen);
+    if (p == NULL)
+        return 0;
+
+    ndef_aux->derbuf = p;
+    *pbuf = p;
+    derlen = ASN1_item_ndef_i2d(ndef_aux->val, &p, ndef_aux->it);
+
+    if (!*ndef_aux->boundary)
+        return 0;
+    *pbuf = *ndef_aux->boundary;
+    *plen = derlen - (*ndef_aux->boundary - ndef_aux->derbuf);
+
+    return 1;
+}