1 files changed, 275 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/asn1/tasn_utl.c b/thirdparty/openssl/crypto/asn1/tasn_utl.c
new file mode 100644
index 0000000000..41726d8feb
--- /dev/null
+++ b/thirdparty/openssl/crypto/asn1/tasn_utl.c
@@ -0,0 +1,275 @@
+/* tasn_utl.c */
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000-2004 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 <stddef.h>
+#include <string.h>
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/objects.h>
+#include <openssl/err.h>
+
+/* Utility functions for manipulating fields and offsets */
+
+/* Add 'offset' to 'addr' */
+#define offset2ptr(addr, offset) (void *)(((char *) addr) + offset)
+
+/*
+ * Given an ASN1_ITEM CHOICE type return the selector value
+ */
+
+int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    int *sel = offset2ptr(*pval, it->utype);
+    return *sel;
+}
+
+/*
+ * Given an ASN1_ITEM CHOICE type set the selector value, return old value.
+ */
+
+int asn1_set_choice_selector(ASN1_VALUE **pval, int value,
+                             const ASN1_ITEM *it)
+{
+    int *sel, ret;
+    sel = offset2ptr(*pval, it->utype);
+    ret = *sel;
+    *sel = value;
+    return ret;
+}
+
+/*
+ * Do reference counting. The value 'op' decides what to do. if it is +1
+ * then the count is incremented. If op is 0 count is set to 1. If op is -1
+ * count is decremented and the return value is the current refrence count or
+ * 0 if no reference count exists.
+ */
+
+int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it)
+{
+    const ASN1_AUX *aux;
+    int *lck, ret;
+    if ((it->itype != ASN1_ITYPE_SEQUENCE)
+        && (it->itype != ASN1_ITYPE_NDEF_SEQUENCE))
+        return 0;
+    aux = it->funcs;
+    if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT))
+        return 0;
+    lck = offset2ptr(*pval, aux->ref_offset);
+    if (op == 0) {
+        *lck = 1;
+        return 1;
+    }
+    ret = CRYPTO_add(lck, op, aux->ref_lock);
+#ifdef REF_PRINT
+    fprintf(stderr, "%s: Reference Count: %d\n", it->sname, *lck);
+#endif
+#ifdef REF_CHECK
+    if (ret < 0)
+        fprintf(stderr, "%s, bad reference count\n", it->sname);
+#endif
+    return ret;
+}
+
+static ASN1_ENCODING *asn1_get_enc_ptr(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    const ASN1_AUX *aux;
+    if (!pval || !*pval)
+        return NULL;
+    aux = it->funcs;
+    if (!aux || !(aux->flags & ASN1_AFLG_ENCODING))
+        return NULL;
+    return offset2ptr(*pval, aux->enc_offset);
+}
+
+void asn1_enc_init(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    ASN1_ENCODING *enc;
+    enc = asn1_get_enc_ptr(pval, it);
+    if (enc) {
+        enc->enc = NULL;
+        enc->len = 0;
+        enc->modified = 1;
+    }
+}
+
+void asn1_enc_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+    ASN1_ENCODING *enc;
+    enc = asn1_get_enc_ptr(pval, it);
+    if (enc) {
+        if (enc->enc)
+            OPENSSL_free(enc->enc);
+        enc->enc = NULL;
+        enc->len = 0;
+        enc->modified = 1;
+    }
+}
+
+int asn1_enc_save(ASN1_VALUE **pval, const unsigned char *in, int inlen,
+                  const ASN1_ITEM *it)
+{
+    ASN1_ENCODING *enc;
+    enc = asn1_get_enc_ptr(pval, it);
+    if (!enc)
+        return 1;
+
+    if (enc->enc)
+        OPENSSL_free(enc->enc);
+    enc->enc = OPENSSL_malloc(inlen);
+    if (!enc->enc)
+        return 0;
+    memcpy(enc->enc, in, inlen);
+    enc->len = inlen;
+    enc->modified = 0;
+
+    return 1;
+}
+
+int asn1_enc_restore(int *len, unsigned char **out, ASN1_VALUE **pval,
+                     const ASN1_ITEM *it)
+{
+    ASN1_ENCODING *enc;
+    enc = asn1_get_enc_ptr(pval, it);
+    if (!enc || enc->modified)
+        return 0;
+    if (out) {
+        memcpy(*out, enc->enc, enc->len);
+        *out += enc->len;
+    }
+    if (len)
+        *len = enc->len;
+    return 1;
+}
+
+/* Given an ASN1_TEMPLATE get a pointer to a field */
+ASN1_VALUE **asn1_get_field_ptr(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+{
+    ASN1_VALUE **pvaltmp;
+    if (tt->flags & ASN1_TFLG_COMBINE)
+        return pval;
+    pvaltmp = offset2ptr(*pval, tt->offset);
+    /*
+     * NOTE for BOOLEAN types the field is just a plain int so we can't
+     * return int **, so settle for (int *).
+     */
+    return pvaltmp;
+}
+
+/*
+ * Handle ANY DEFINED BY template, find the selector, look up the relevant
+ * ASN1_TEMPLATE in the table and return it.
+ */
+
+const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,
+                                 int nullerr)
+{
+    const ASN1_ADB *adb;
+    const ASN1_ADB_TABLE *atbl;
+    long selector;
+    ASN1_VALUE **sfld;
+    int i;
+    if (!(tt->flags & ASN1_TFLG_ADB_MASK))
+        return tt;
+
+    /* Else ANY DEFINED BY ... get the table */
+    adb = ASN1_ADB_ptr(tt->item);
+
+    /* Get the selector field */
+    sfld = offset2ptr(*pval, adb->offset);
+
+    /* Check if NULL */
+    if (!sfld) {
+        if (!adb->null_tt)
+            goto err;
+        return adb->null_tt;
+    }
+
+    /*
+     * Convert type to a long: NB: don't check for NID_undef here because it
+     * might be a legitimate value in the table
+     */
+    if (tt->flags & ASN1_TFLG_ADB_OID)
+        selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld);
+    else
+        selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld);
+
+    /*
+     * Try to find matching entry in table Maybe should check application
+     * types first to allow application override? Might also be useful to
+     * have a flag which indicates table is sorted and we can do a binary
+     * search. For now stick to a linear search.
+     */
+
+    for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++)
+        if (atbl->value == selector)
+            return &atbl->tt;
+
+    /* FIXME: need to search application table too */
+
+    /* No match, return default type */
+    if (!adb->default_tt)
+        goto err;
+    return adb->default_tt;
+
+ err:
+    /* FIXME: should log the value or OID of unsupported type */
+    if (nullerr)
+        ASN1err(ASN1_F_ASN1_DO_ADB, ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE);
+    return NULL;
+}