--- /dev/null
+/* tasn_enc.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 "cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/objects.h>
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_ITEM *it,
+ int tag, int aclass);
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+ int skcontlen, const ASN1_ITEM *item,
+ int do_sort, int iclass);
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_TEMPLATE *tt,
+ int tag, int aclass);
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+ const ASN1_ITEM *it, int flags);
+
+/* Top level i2d equivalents: the 'ndef' variant instructs the encoder
+ * to use indefinite length constructed encoding, where appropriate
+ */
+
+int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out,
+ const ASN1_ITEM *it)
+ {
+ return asn1_item_flags_i2d(val, out, it, ASN1_TFLG_NDEF);
+ }
+
+int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it)
+ {
+ return asn1_item_flags_i2d(val, out, it, 0);
+ }
+
+/* Encode an ASN1 item, this is use by the
+ * standard 'i2d' function. 'out' points to
+ * a buffer to output the data to.
+ *
+ * The new i2d has one additional feature. If the output
+ * buffer is NULL (i.e. *out == NULL) then a buffer is
+ * allocated and populated with the encoding.
+ */
+
+static int asn1_item_flags_i2d(ASN1_VALUE *val, unsigned char **out,
+ const ASN1_ITEM *it, int flags)
+ {
+ if (out && !*out)
+ {
+ unsigned char *p, *buf;
+ int len;
+ len = ASN1_item_ex_i2d(&val, NULL, it, -1, flags);
+ if (len <= 0)
+ return len;
+ buf = OPENSSL_malloc(len);
+ if (!buf)
+ return -1;
+ p = buf;
+ ASN1_item_ex_i2d(&val, &p, it, -1, flags);
+ *out = buf;
+ return len;
+ }
+
+ return ASN1_item_ex_i2d(&val, out, it, -1, flags);
+ }
+
+/* Encode an item, taking care of IMPLICIT tagging (if any).
+ * This function performs the normal item handling: it can be
+ * used in external types.
+ */
+
+int ASN1_item_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_ITEM *it, int tag, int aclass)
+ {
+ const ASN1_TEMPLATE *tt = NULL;
+ unsigned char *p = NULL;
+ int i, seqcontlen, seqlen, ndef = 1;
+ const ASN1_COMPAT_FUNCS *cf;
+ const ASN1_EXTERN_FUNCS *ef;
+ const ASN1_AUX *aux = it->funcs;
+ ASN1_aux_cb *asn1_cb = 0;
+
+ if ((it->itype != ASN1_ITYPE_PRIMITIVE) && !*pval)
+ return 0;
+
+ if (aux && aux->asn1_cb)
+ asn1_cb = aux->asn1_cb;
+
+ switch(it->itype)
+ {
+
+ case ASN1_ITYPE_PRIMITIVE:
+ if (it->templates)
+ return asn1_template_ex_i2d(pval, out, it->templates,
+ tag, aclass);
+ return asn1_i2d_ex_primitive(pval, out, it, tag, aclass);
+ break;
+
+ case ASN1_ITYPE_MSTRING:
+ return asn1_i2d_ex_primitive(pval, out, it, -1, aclass);
+
+ case ASN1_ITYPE_CHOICE:
+ if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+ return 0;
+ i = asn1_get_choice_selector(pval, it);
+ if ((i >= 0) && (i < it->tcount))
+ {
+ ASN1_VALUE **pchval;
+ const ASN1_TEMPLATE *chtt;
+ chtt = it->templates + i;
+ pchval = asn1_get_field_ptr(pval, chtt);
+ return asn1_template_ex_i2d(pchval, out, chtt,
+ -1, aclass);
+ }
+ /* Fixme: error condition if selector out of range */
+ if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+ return 0;
+ break;
+
+ case ASN1_ITYPE_EXTERN:
+ /* If new style i2d it does all the work */
+ ef = it->funcs;
+ return ef->asn1_ex_i2d(pval, out, it, tag, aclass);
+
+ case ASN1_ITYPE_COMPAT:
+ /* old style hackery... */
+ cf = it->funcs;
+ if (out)
+ p = *out;
+ i = cf->asn1_i2d(*pval, out);
+ /* Fixup for IMPLICIT tag: note this messes up for tags > 30,
+ * but so did the old code. Tags > 30 are very rare anyway.
+ */
+ if (out && (tag != -1))
+ *p = aclass | tag | (*p & V_ASN1_CONSTRUCTED);
+ return i;
+
+ case ASN1_ITYPE_NDEF_SEQUENCE:
+ /* Use indefinite length constructed if requested */
+ if (aclass & ASN1_TFLG_NDEF) ndef = 2;
+ /* fall through */
+
+ case ASN1_ITYPE_SEQUENCE:
+ i = asn1_enc_restore(&seqcontlen, out, pval, it);
+ /* An error occurred */
+ if (i < 0)
+ return 0;
+ /* We have a valid cached encoding... */
+ if (i > 0)
+ return seqcontlen;
+ /* Otherwise carry on */
+ seqcontlen = 0;
+ /* If no IMPLICIT tagging set to SEQUENCE, UNIVERSAL */
+ if (tag == -1)
+ {
+ tag = V_ASN1_SEQUENCE;
+ /* Retain any other flags in aclass */
+ aclass = (aclass & ~ASN1_TFLG_TAG_CLASS)
+ | V_ASN1_UNIVERSAL;
+ }
+ if (asn1_cb && !asn1_cb(ASN1_OP_I2D_PRE, pval, it, NULL))
+ return 0;
+ /* First work out sequence content length */
+ for (i = 0, tt = it->templates; i < it->tcount; tt++, i++)
+ {
+ const ASN1_TEMPLATE *seqtt;
+ ASN1_VALUE **pseqval;
+ seqtt = asn1_do_adb(pval, tt, 1);
+ if (!seqtt)
+ return 0;
+ pseqval = asn1_get_field_ptr(pval, seqtt);
+ /* FIXME: check for errors in enhanced version */
+ seqcontlen += asn1_template_ex_i2d(pseqval, NULL, seqtt,
+ -1, aclass);
+ }
+
+ seqlen = ASN1_object_size(ndef, seqcontlen, tag);
+ if (!out)
+ return seqlen;
+ /* Output SEQUENCE header */
+ ASN1_put_object(out, ndef, seqcontlen, tag, aclass);
+ for (i = 0, tt = it->templates; i < it->tcount; tt++, i++)
+ {
+ const ASN1_TEMPLATE *seqtt;
+ ASN1_VALUE **pseqval;
+ seqtt = asn1_do_adb(pval, tt, 1);
+ if (!seqtt)
+ return 0;
+ pseqval = asn1_get_field_ptr(pval, seqtt);
+ /* FIXME: check for errors in enhanced version */
+ asn1_template_ex_i2d(pseqval, out, seqtt, -1, aclass);
+ }
+ if (ndef == 2)
+ ASN1_put_eoc(out);
+ if (asn1_cb && !asn1_cb(ASN1_OP_I2D_POST, pval, it, NULL))
+ return 0;
+ return seqlen;
+
+ default:
+ return 0;
+
+ }
+ return 0;
+ }
+
+int ASN1_template_i2d(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_TEMPLATE *tt)
+ {
+ return asn1_template_ex_i2d(pval, out, tt, -1, 0);
+ }
+
+static int asn1_template_ex_i2d(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_TEMPLATE *tt, int tag, int iclass)
+ {
+ int i, ret, flags, ttag, tclass, ndef;
+ flags = tt->flags;
+ /* Work out tag and class to use: tagging may come
+ * either from the template or the arguments, not both
+ * because this would create ambiguity. Additionally
+ * the iclass argument may contain some additional flags
+ * which should be noted and passed down to other levels.
+ */
+ if (flags & ASN1_TFLG_TAG_MASK)
+ {
+ /* Error if argument and template tagging */
+ if (tag != -1)
+ /* FIXME: error code here */
+ return -1;
+ /* Get tagging from template */
+ ttag = tt->tag;
+ tclass = flags & ASN1_TFLG_TAG_CLASS;
+ }
+ else if (tag != -1)
+ {
+ /* No template tagging, get from arguments */
+ ttag = tag;
+ tclass = iclass & ASN1_TFLG_TAG_CLASS;
+ }
+ else
+ {
+ ttag = -1;
+ tclass = 0;
+ }
+ /*
+ * Remove any class mask from iflag.
+ */
+ iclass &= ~ASN1_TFLG_TAG_CLASS;
+
+ /* At this point 'ttag' contains the outer tag to use,
+ * 'tclass' is the class and iclass is any flags passed
+ * to this function.
+ */
+
+ /* if template and arguments require ndef, use it */
+ if ((flags & ASN1_TFLG_NDEF) && (iclass & ASN1_TFLG_NDEF))
+ ndef = 2;
+ else ndef = 1;
+
+ if (flags & ASN1_TFLG_SK_MASK)
+ {
+ /* SET OF, SEQUENCE OF */
+ STACK_OF(ASN1_VALUE) *sk = (STACK_OF(ASN1_VALUE) *)*pval;
+ int isset, sktag, skaclass;
+ int skcontlen, sklen;
+ ASN1_VALUE *skitem;
+
+ if (!*pval)
+ return 0;
+
+ if (flags & ASN1_TFLG_SET_OF)
+ {
+ isset = 1;
+ /* 2 means we reorder */
+ if (flags & ASN1_TFLG_SEQUENCE_OF)
+ isset = 2;
+ }
+ else isset = 0;
+
+ /* Work out inner tag value: if EXPLICIT
+ * or no tagging use underlying type.
+ */
+ if ((ttag != -1) && !(flags & ASN1_TFLG_EXPTAG))
+ {
+ sktag = ttag;
+ skaclass = tclass;
+ }
+ else
+ {
+ skaclass = V_ASN1_UNIVERSAL;
+ if (isset)
+ sktag = V_ASN1_SET;
+ else sktag = V_ASN1_SEQUENCE;
+ }
+
+ /* Determine total length of items */
+ skcontlen = 0;
+ for (i = 0; i < sk_ASN1_VALUE_num(sk); i++)
+ {
+ skitem = sk_ASN1_VALUE_value(sk, i);
+ skcontlen += ASN1_item_ex_i2d(&skitem, NULL,
+ ASN1_ITEM_ptr(tt->item),
+ -1, iclass);
+ }
+ sklen = ASN1_object_size(ndef, skcontlen, sktag);
+ /* If EXPLICIT need length of surrounding tag */
+ if (flags & ASN1_TFLG_EXPTAG)
+ ret = ASN1_object_size(ndef, sklen, ttag);
+ else ret = sklen;
+
+ if (!out)
+ return ret;
+
+ /* Now encode this lot... */
+ /* EXPLICIT tag */
+ if (flags & ASN1_TFLG_EXPTAG)
+ ASN1_put_object(out, ndef, sklen, ttag, tclass);
+ /* SET or SEQUENCE and IMPLICIT tag */
+ ASN1_put_object(out, ndef, skcontlen, sktag, skaclass);
+ /* And the stuff itself */
+ asn1_set_seq_out(sk, out, skcontlen, ASN1_ITEM_ptr(tt->item),
+ isset, iclass);
+ if (ndef == 2)
+ {
+ ASN1_put_eoc(out);
+ if (flags & ASN1_TFLG_EXPTAG)
+ ASN1_put_eoc(out);
+ }
+
+ return ret;
+ }
+
+ if (flags & ASN1_TFLG_EXPTAG)
+ {
+ /* EXPLICIT tagging */
+ /* Find length of tagged item */
+ i = ASN1_item_ex_i2d(pval, NULL, ASN1_ITEM_ptr(tt->item),
+ -1, iclass);
+ if (!i)
+ return 0;
+ /* Find length of EXPLICIT tag */
+ ret = ASN1_object_size(ndef, i, ttag);
+ if (out)
+ {
+ /* Output tag and item */
+ ASN1_put_object(out, ndef, i, ttag, tclass);
+ ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item),
+ -1, iclass);
+ if (ndef == 2)
+ ASN1_put_eoc(out);
+ }
+ return ret;
+ }
+
+ /* Either normal or IMPLICIT tagging: combine class and flags */
+ return ASN1_item_ex_i2d(pval, out, ASN1_ITEM_ptr(tt->item),
+ ttag, tclass | iclass);
+
+}
+
+/* Temporary structure used to hold DER encoding of items for SET OF */
+
+typedef struct {
+ unsigned char *data;
+ int length;
+ ASN1_VALUE *field;
+} DER_ENC;
+
+static int der_cmp(const void *a, const void *b)
+ {
+ const DER_ENC *d1 = a, *d2 = b;
+ int cmplen, i;
+ cmplen = (d1->length < d2->length) ? d1->length : d2->length;
+ i = memcmp(d1->data, d2->data, cmplen);
+ if (i)
+ return i;
+ return d1->length - d2->length;
+ }
+
+/* Output the content octets of SET OF or SEQUENCE OF */
+
+static int asn1_set_seq_out(STACK_OF(ASN1_VALUE) *sk, unsigned char **out,
+ int skcontlen, const ASN1_ITEM *item,
+ int do_sort, int iclass)
+ {
+ int i;
+ ASN1_VALUE *skitem;
+ unsigned char *tmpdat = NULL, *p = NULL;
+ DER_ENC *derlst = NULL, *tder;
+ if (do_sort)
+ {
+ /* Don't need to sort less than 2 items */
+ if (sk_ASN1_VALUE_num(sk) < 2)
+ do_sort = 0;
+ else
+ {
+ derlst = OPENSSL_malloc(sk_ASN1_VALUE_num(sk)
+ * sizeof(*derlst));
+ if (!derlst)
+ return 0;
+ tmpdat = OPENSSL_malloc(skcontlen);
+ if (!tmpdat)
+ {
+ OPENSSL_free(derlst);
+ return 0;
+ }
+ }
+ }
+ /* If not sorting just output each item */
+ if (!do_sort)
+ {
+ for (i = 0; i < sk_ASN1_VALUE_num(sk); i++)
+ {
+ skitem = sk_ASN1_VALUE_value(sk, i);
+ ASN1_item_ex_i2d(&skitem, out, item, -1, iclass);
+ }
+ return 1;
+ }
+ p = tmpdat;
+
+ /* Doing sort: build up a list of each member's DER encoding */
+ for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++)
+ {
+ skitem = sk_ASN1_VALUE_value(sk, i);
+ tder->data = p;
+ tder->length = ASN1_item_ex_i2d(&skitem, &p, item, -1, iclass);
+ tder->field = skitem;
+ }
+
+ /* Now sort them */
+ qsort(derlst, sk_ASN1_VALUE_num(sk), sizeof(*derlst), der_cmp);
+ /* Output sorted DER encoding */
+ p = *out;
+ for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk); i++, tder++)
+ {
+ memcpy(p, tder->data, tder->length);
+ p += tder->length;
+ }
+ *out = p;
+ /* If do_sort is 2 then reorder the STACK */
+ if (do_sort == 2)
+ {
+ for (i = 0, tder = derlst; i < sk_ASN1_VALUE_num(sk);
+ i++, tder++)
+ (void)sk_ASN1_VALUE_set(sk, i, tder->field);
+ }
+ OPENSSL_free(derlst);
+ OPENSSL_free(tmpdat);
+ return 1;
+ }
+
+static int asn1_i2d_ex_primitive(ASN1_VALUE **pval, unsigned char **out,
+ const ASN1_ITEM *it, int tag, int aclass)
+ {
+ int len;
+ int utype;
+ int usetag;
+ int ndef = 0;
+
+ utype = it->utype;
+
+ /* Get length of content octets and maybe find
+ * out the underlying type.
+ */
+
+ len = asn1_ex_i2c(pval, NULL, &utype, it);
+
+ /* If SEQUENCE, SET or OTHER then header is
+ * included in pseudo content octets so don't
+ * include tag+length. We need to check here
+ * because the call to asn1_ex_i2c() could change
+ * utype.
+ */
+ if ((utype == V_ASN1_SEQUENCE) || (utype == V_ASN1_SET) ||
+ (utype == V_ASN1_OTHER))
+ usetag = 0;
+ else usetag = 1;
+
+ /* -1 means omit type */
+
+ if (len == -1)
+ return 0;
+
+ /* -2 return is special meaning use ndef */
+ if (len == -2)
+ {
+ ndef = 2;
+ len = 0;
+ }
+
+ /* If not implicitly tagged get tag from underlying type */
+ if (tag == -1) tag = utype;
+
+ /* Output tag+length followed by content octets */
+ if (out)
+ {
+ if (usetag)
+ ASN1_put_object(out, ndef, len, tag, aclass);
+ asn1_ex_i2c(pval, *out, &utype, it);
+ if (ndef)
+ ASN1_put_eoc(out);
+ else
+ *out += len;
+ }
+
+ if (usetag)
+ return ASN1_object_size(ndef, len, tag);
+ return len;
+ }
+
+/* Produce content octets from a structure */
+
+int asn1_ex_i2c(ASN1_VALUE **pval, unsigned char *cout, int *putype,
+ const ASN1_ITEM *it)
+ {
+ ASN1_BOOLEAN *tbool = NULL;
+ ASN1_STRING *strtmp;
+ ASN1_OBJECT *otmp;
+ int utype;
+ const unsigned char *cont;
+ unsigned char c;
+ int len;
+ const ASN1_PRIMITIVE_FUNCS *pf;
+ pf = it->funcs;
+ if (pf && pf->prim_i2c)
+ return pf->prim_i2c(pval, cout, putype, it);
+
+ /* Should type be omitted? */
+ if ((it->itype != ASN1_ITYPE_PRIMITIVE)
+ || (it->utype != V_ASN1_BOOLEAN))
+ {
+ if (!*pval) return -1;
+ }
+
+ if (it->itype == ASN1_ITYPE_MSTRING)
+ {
+ /* If MSTRING type set the underlying type */
+ strtmp = (ASN1_STRING *)*pval;
+ utype = strtmp->type;
+ *putype = utype;
+ }
+ else if (it->utype == V_ASN1_ANY)
+ {
+ /* If ANY set type and pointer to value */
+ ASN1_TYPE *typ;
+ typ = (ASN1_TYPE *)*pval;
+ utype = typ->type;
+ *putype = utype;
+ pval = &typ->value.asn1_value;
+ }
+ else utype = *putype;
+
+ switch(utype)
+ {
+ case V_ASN1_OBJECT:
+ otmp = (ASN1_OBJECT *)*pval;
+ cont = otmp->data;
+ len = otmp->length;
+ break;
+
+ case V_ASN1_NULL:
+ cont = NULL;
+ len = 0;
+ break;
+
+ case V_ASN1_BOOLEAN:
+ tbool = (ASN1_BOOLEAN *)pval;
+ if (*tbool == -1)
+ return -1;
+ if (it->utype != V_ASN1_ANY)
+ {
+ /* Default handling if value == size field then omit */
+ if (*tbool && (it->size > 0))
+ return -1;
+ if (!*tbool && !it->size)
+ return -1;
+ }
+ c = (unsigned char)*tbool;
+ cont = &c;
+ len = 1;
+ break;
+
+ case V_ASN1_BIT_STRING:
+ return i2c_ASN1_BIT_STRING((ASN1_BIT_STRING *)*pval,
+ cout ? &cout : NULL);
+ break;
+
+ case V_ASN1_INTEGER:
+ case V_ASN1_NEG_INTEGER:
+ case V_ASN1_ENUMERATED:
+ case V_ASN1_NEG_ENUMERATED:
+ /* These are all have the same content format
+ * as ASN1_INTEGER
+ */
+ return i2c_ASN1_INTEGER((ASN1_INTEGER *)*pval,
+ cout ? &cout : NULL);
+ break;
+
+ case V_ASN1_OCTET_STRING:
+ case V_ASN1_NUMERICSTRING:
+ case V_ASN1_PRINTABLESTRING:
+ case V_ASN1_T61STRING:
+ case V_ASN1_VIDEOTEXSTRING:
+ case V_ASN1_IA5STRING:
+ case V_ASN1_UTCTIME:
+ case V_ASN1_GENERALIZEDTIME:
+ case V_ASN1_GRAPHICSTRING:
+ case V_ASN1_VISIBLESTRING:
+ case V_ASN1_GENERALSTRING:
+ case V_ASN1_UNIVERSALSTRING:
+ case V_ASN1_BMPSTRING:
+ case V_ASN1_UTF8STRING:
+ case V_ASN1_SEQUENCE:
+ case V_ASN1_SET:
+ default:
+ /* All based on ASN1_STRING and handled the same */
+ strtmp = (ASN1_STRING *)*pval;
+ /* Special handling for NDEF */
+ if ((it->size == ASN1_TFLG_NDEF)
+ && (strtmp->flags & ASN1_STRING_FLAG_NDEF))
+ {
+ if (cout)
+ {
+ strtmp->data = cout;
+ strtmp->length = 0;
+ }
+ /* Special return code */
+ return -2;
+ }
+ cont = strtmp->data;
+ len = strtmp->length;
+
+ break;
+
+ }
+ if (cout && len)
+ memcpy(cout, cont, len);
+ return len;
+ }
projects / cassiopeia.git / blobdiff