early-access version 1255

externals/libressl/crypto/pkcs12/p12_utl.c

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+/* $OpenBSD: p12_utl.c,v 1.16 2018/05/30 15:32:11 tb Exp $ */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/pkcs12.h>
+
+/* Cheap and nasty Unicode stuff */
+
+unsigned char *
+OPENSSL_asc2uni(const char *asc, int asclen, unsigned char **uni, int *unilen)
+{
+	size_t ulen, i;
+	unsigned char *unitmp;
+
+	if (asclen < 0)
+		ulen = strlen(asc);
+	else
+		ulen = (size_t)asclen;
+	ulen++;
+	if (ulen == 0) /* unlikely overflow */
+		return NULL;
+	if ((unitmp = reallocarray(NULL, ulen, 2)) == NULL)
+		return NULL;
+	ulen *= 2;
+	/* XXX This interface ought to use unsigned types */
+	if (ulen > INT_MAX) {
+		free(unitmp);
+		return NULL;
+	}
+	for (i = 0; i < ulen - 2; i += 2) {
+		unitmp[i] = 0;
+		unitmp[i + 1] = *asc++;
+	}
+	/* Make result double-NUL terminated */
+	unitmp[ulen - 2] = 0;
+	unitmp[ulen - 1] = 0;
+	if (unilen)
+		*unilen = ulen;
+	if (uni)
+		*uni = unitmp;
+	return unitmp;
+}
+
+char *
+OPENSSL_uni2asc(const unsigned char *uni, int unilen)
+{
+	size_t asclen, u16len, i;
+	char *asctmp;
+
+	if (unilen < 0)
+		return NULL;
+
+	asclen = u16len = (size_t)unilen / 2;
+	/* If no terminating NUL, allow for one */
+	if (unilen == 0 || uni[unilen - 1] != '\0')
+		asclen++;
+	if ((asctmp = malloc(asclen)) == NULL)
+		return NULL;
+	/* Skip first zero byte */
+	uni++;
+	for (i = 0; i < u16len; i++) {
+		asctmp[i] = *uni;
+		uni += 2;
+	}
+	asctmp[asclen - 1] = '\0';
+	return asctmp;
+}
+
+int
+i2d_PKCS12_bio(BIO *bp, PKCS12 *p12)
+{
+	return ASN1_item_i2d_bio(&PKCS12_it, bp, p12);
+}
+
+int
+i2d_PKCS12_fp(FILE *fp, PKCS12 *p12)
+{
+	return ASN1_item_i2d_fp(&PKCS12_it, fp, p12);
+}
+
+PKCS12 *
+d2i_PKCS12_bio(BIO *bp, PKCS12 **p12)
+{
+	return ASN1_item_d2i_bio(&PKCS12_it, bp, p12);
+}
+
+PKCS12 *
+d2i_PKCS12_fp(FILE *fp, PKCS12 **p12)
+{
+	    return ASN1_item_d2i_fp(&PKCS12_it, fp, p12);
+}
+
+PKCS12_SAFEBAG *
+PKCS12_x5092certbag(X509 *x509)
+{
+	return PKCS12_item_pack_safebag(x509, &X509_it,
+	    NID_x509Certificate, NID_certBag);
+}
+
+PKCS12_SAFEBAG *
+PKCS12_x509crl2certbag(X509_CRL *crl)
+{
+	return PKCS12_item_pack_safebag(crl, &X509_CRL_it,
+	    NID_x509Crl, NID_crlBag);
+}
+
+X509 *
+PKCS12_certbag2x509(PKCS12_SAFEBAG *bag)
+{
+	if (OBJ_obj2nid(bag->type) != NID_certBag)
+		return NULL;
+	if (OBJ_obj2nid(bag->value.bag->type) != NID_x509Certificate)
+		return NULL;
+	return ASN1_item_unpack(bag->value.bag->value.octet,
+	    &X509_it);
+}
+
+X509_CRL *
+PKCS12_certbag2x509crl(PKCS12_SAFEBAG *bag)
+{
+	if (OBJ_obj2nid(bag->type) != NID_crlBag)
+		return NULL;
+	if (OBJ_obj2nid(bag->value.bag->type) != NID_x509Crl)
+		return NULL;
+	return ASN1_item_unpack(bag->value.bag->value.octet,
+	    &X509_CRL_it);
+}