Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/asn1/asn_mime.c

Index: openssl/crypto/asn1/asn_mime.c
diff --git a/openssl/crypto/asn1/asn_mime.c b/openssl/crypto/asn1/asn_mime.c
deleted file mode 100644
index 54a704a969ead5e66680da2e712aed00ae3101dc..0000000000000000000000000000000000000000
--- a/openssl/crypto/asn1/asn_mime.c
+++ /dev/null
@@ -1,951 +0,0 @@
-/* asn_mime.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
-/* ====================================================================
- * Copyright (c) 1999-2008 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.
- * ====================================================================
- *
- */
-
-#include <stdio.h>
-#include <ctype.h>
-#include "cryptlib.h"
-#include <openssl/rand.h>
-#include <openssl/x509.h>
-#include <openssl/asn1.h>
-#include <openssl/asn1t.h>
-#include "asn1_locl.h"
-
-/* Generalised MIME like utilities for streaming ASN1. Although many
- * have a PKCS7/CMS like flavour others are more general purpose.
- */
-
-/* MIME format structures
- * Note that all are translated to lower case apart from
- * parameter values. Quotes are stripped off
- */
-
-typedef struct {
-char *param_name;			/* Param name e.g. "micalg" */
-char *param_value;			/* Param value e.g. "sha1" */
-} MIME_PARAM;
-
-DECLARE_STACK_OF(MIME_PARAM)
-IMPLEMENT_STACK_OF(MIME_PARAM)
-
-typedef struct {
-char *name;				/* Name of line e.g. "content-type" */
-char *value;				/* Value of line e.g. "text/plain" */
-STACK_OF(MIME_PARAM) *params;		/* Zero or more parameters */
-} MIME_HEADER;
-
-DECLARE_STACK_OF(MIME_HEADER)
-IMPLEMENT_STACK_OF(MIME_HEADER)
-
-static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
-					const ASN1_ITEM *it);
-static char * strip_ends(char *name);
-static char * strip_start(char *name);
-static char * strip_end(char *name);
-static MIME_HEADER *mime_hdr_new(char *name, char *value);
-static int mime_hdr_addparam(MIME_HEADER *mhdr, char *name, char *value);
-static STACK_OF(MIME_HEADER) *mime_parse_hdr(BIO *bio);
-static int mime_hdr_cmp(const MIME_HEADER * const *a,
-			const MIME_HEADER * const *b);
-static int mime_param_cmp(const MIME_PARAM * const *a,
-			const MIME_PARAM * const *b);
-static void mime_param_free(MIME_PARAM *param);
-static int mime_bound_check(char *line, int linelen, char *bound, int blen);
-static int multi_split(BIO *bio, char *bound, STACK_OF(BIO) **ret);
-static int strip_eol(char *linebuf, int *plen);
-static MIME_HEADER *mime_hdr_find(STACK_OF(MIME_HEADER) *hdrs, char *name);
-static MIME_PARAM *mime_param_find(MIME_HEADER *hdr, char *name);
-static void mime_hdr_free(MIME_HEADER *hdr);
-
-#define MAX_SMLEN 1024
-#define mime_debug(x) /* x */
-
-/* Output an ASN1 structure in BER format streaming if necessary */
-
-int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
-				const ASN1_ITEM *it)
-	{
-	/* If streaming create stream BIO and copy all content through it */
-	if (flags & SMIME_STREAM)
-		{
-		BIO *bio, *tbio;
-		bio = BIO_new_NDEF(out, val, it);
-		if (!bio)
-			{
-			ASN1err(ASN1_F_I2D_ASN1_BIO_STREAM,ERR_R_MALLOC_FAILURE);
-			return 0;
-			}
-		SMIME_crlf_copy(in, bio, flags);
-		(void)BIO_flush(bio);
-		/* Free up successive BIOs until we hit the old output BIO */
-		do
-			{
-			tbio = BIO_pop(bio);
-			BIO_free(bio);
-			bio = tbio;
-			} while (bio != out);
-		}
-	/* else just write out ASN1 structure which will have all content
-	 * stored internally
-	 */
-	else
-		ASN1_item_i2d_bio(it, out, val);
-	return 1;
-	}
-
-/* Base 64 read and write of ASN1 structure */
-
-static int B64_write_ASN1(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
-				const ASN1_ITEM *it)
-	{
-	BIO *b64;
-	int r;
-	b64 = BIO_new(BIO_f_base64());
-	if(!b64)
-		{
-		ASN1err(ASN1_F_B64_WRITE_ASN1,ERR_R_MALLOC_FAILURE);
-		return 0;
-		}
-	/* prepend the b64 BIO so all data is base64 encoded.
-	 */
-	out = BIO_push(b64, out);
-	r = i2d_ASN1_bio_stream(out, val, in, flags, it);
-	(void)BIO_flush(out);
-	BIO_pop(out);
-	BIO_free(b64);
-	return r;
-	}
-
-/* Streaming ASN1 PEM write */
-
-int PEM_write_bio_ASN1_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
-				const char *hdr,
-				const ASN1_ITEM *it)
-	{
-	int r;
-	BIO_printf(out, "-----BEGIN %s-----\n", hdr);
-	r = B64_write_ASN1(out, val, in, flags, it);
-	BIO_printf(out, "-----END %s-----\n", hdr);
-	return r;
-	}
-
-static ASN1_VALUE *b64_read_asn1(BIO *bio, const ASN1_ITEM *it)
-{
-	BIO *b64;
-	ASN1_VALUE *val;
-	if(!(b64 = BIO_new(BIO_f_base64()))) {
-		ASN1err(ASN1_F_B64_READ_ASN1,ERR_R_MALLOC_FAILURE);
-		return 0;
-	}
-	bio = BIO_push(b64, bio);
-	val = ASN1_item_d2i_bio(it, bio, NULL);
-	if(!val)
-		ASN1err(ASN1_F_B64_READ_ASN1,ASN1_R_DECODE_ERROR);
-	(void)BIO_flush(bio);
-	bio = BIO_pop(bio);
-	BIO_free(b64);
-	return val;
-}
-
-/* Generate the MIME "micalg" parameter from RFC3851, RFC4490 */
-
-static int asn1_write_micalg(BIO *out, STACK_OF(X509_ALGOR) *mdalgs)
-	{
-	const EVP_MD *md;
-	int i, have_unknown = 0, write_comma, ret = 0, md_nid;
-	have_unknown = 0;
-	write_comma = 0;
-	for (i = 0; i < sk_X509_ALGOR_num(mdalgs); i++)
-		{
-		if (write_comma)
-			BIO_write(out, ",", 1);
-		write_comma = 1;
-		md_nid = OBJ_obj2nid(sk_X509_ALGOR_value(mdalgs, i)->algorithm);
-		md = EVP_get_digestbynid(md_nid);
-		if (md && md->md_ctrl)
-			{
-			int rv;
-			char *micstr;
-			rv = md->md_ctrl(NULL, EVP_MD_CTRL_MICALG, 0, &micstr);
-			if (rv > 0)
-				{
-				BIO_puts(out, micstr);
-				OPENSSL_free(micstr);
-				continue;
-				}
-			if (rv != -2)
-				goto err;
-			}
-		switch(md_nid)
-			{
-			case NID_sha1:
-			BIO_puts(out, "sha1");
-			break;
-
-			case NID_md5:
-			BIO_puts(out, "md5");
-			break;
-
-			case NID_sha256:
-			BIO_puts(out, "sha-256");
-			break;
-
-			case NID_sha384:
-			BIO_puts(out, "sha-384");
-			break;
-
-			case NID_sha512:
-			BIO_puts(out, "sha-512");
-			break;
-
-			case NID_id_GostR3411_94:
-			BIO_puts(out, "gostr3411-94");
-				goto err;
-			break;
-
-			default:
-			if (have_unknown)
-				write_comma = 0;
-			else
-				{
-				BIO_puts(out, "unknown");
-				have_unknown = 1;
-				}
-			break;
-
-			}
-		}
-
-	ret = 1;
-	err:
-
-	return ret;
-
-	}
-
-/* SMIME sender */
-
-int SMIME_write_ASN1(BIO *bio, ASN1_VALUE *val, BIO *data, int flags,
-				int ctype_nid, int econt_nid,
-				STACK_OF(X509_ALGOR) *mdalgs,
-				const ASN1_ITEM *it)
-{
-	char bound[33], c;
-	int i;
-	const char *mime_prefix, *mime_eol, *cname = "smime.p7m";
-	const char *msg_type=NULL;
-	if (flags & SMIME_OLDMIME)
-		mime_prefix = "application/x-pkcs7-";
-	else
-		mime_prefix = "application/pkcs7-";
-
-	if (flags & SMIME_CRLFEOL)
-		mime_eol = "\r\n";
-	else
-		mime_eol = "\n";
-	if((flags & SMIME_DETACHED) && data) {
-	/* We want multipart/signed */
-		/* Generate a random boundary */
-		RAND_pseudo_bytes((unsigned char *)bound, 32);
-		for(i = 0; i < 32; i++) {
-			c = bound[i] & 0xf;
-			if(c < 10) c += '0';
-			else c += 'A' - 10;
-			bound[i] = c;
-		}
-		bound[32] = 0;
-		BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
-		BIO_printf(bio, "Content-Type: multipart/signed;");
-		BIO_printf(bio, " protocol=\"%ssignature\";", mime_prefix);
-		BIO_puts(bio, " micalg=\"");
-		asn1_write_micalg(bio, mdalgs);
-		BIO_printf(bio, "\"; boundary=\"----%s\"%s%s",
-						bound, mime_eol, mime_eol);
-		BIO_printf(bio, "This is an S/MIME signed message%s%s",
-						mime_eol, mime_eol);
-		/* Now write out the first part */
-		BIO_printf(bio, "------%s%s", bound, mime_eol);
-		if (!asn1_output_data(bio, data, val, flags, it))
-			return 0;
-		BIO_printf(bio, "%s------%s%s", mime_eol, bound, mime_eol);
-
-		/* Headers for signature */
-
-		BIO_printf(bio, "Content-Type: %ssignature;", mime_prefix); 
-		BIO_printf(bio, " name=\"smime.p7s\"%s", mime_eol);
-		BIO_printf(bio, "Content-Transfer-Encoding: base64%s",
-								mime_eol);
-		BIO_printf(bio, "Content-Disposition: attachment;");
-		BIO_printf(bio, " filename=\"smime.p7s\"%s%s",
-							mime_eol, mime_eol);
-		B64_write_ASN1(bio, val, NULL, 0, it);
-		BIO_printf(bio,"%s------%s--%s%s", mime_eol, bound,
-							mime_eol, mime_eol);
-		return 1;
-	}
-
-	/* Determine smime-type header */
-
-	if (ctype_nid == NID_pkcs7_enveloped)
-		msg_type = "enveloped-data";
-	else if (ctype_nid == NID_pkcs7_signed)
-		{
-		if (econt_nid == NID_id_smime_ct_receipt)
-			msg_type = "signed-receipt";
-		else if (sk_X509_ALGOR_num(mdalgs) >= 0)
-			msg_type = "signed-data";
-		else
-			msg_type = "certs-only";
-		}
-	else if (ctype_nid == NID_id_smime_ct_compressedData)
-		{
-		msg_type = "compressed-data";
-		cname = "smime.p7z";
-		}
-	/* MIME headers */
-	BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
-	BIO_printf(bio, "Content-Disposition: attachment;");
-	BIO_printf(bio, " filename=\"%s\"%s", cname, mime_eol);
-	BIO_printf(bio, "Content-Type: %smime;", mime_prefix);
-	if (msg_type)
-		BIO_printf(bio, " smime-type=%s;", msg_type);
-	BIO_printf(bio, " name=\"%s\"%s", cname, mime_eol);
-	BIO_printf(bio, "Content-Transfer-Encoding: base64%s%s",
-						mime_eol, mime_eol);
-	if (!B64_write_ASN1(bio, val, data, flags, it))
-		return 0;
-	BIO_printf(bio, "%s", mime_eol);
-	return 1;
-}
-
-/* Handle output of ASN1 data */
-
-
-static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
-					const ASN1_ITEM *it)
-	{
-	BIO *tmpbio;
-	const ASN1_AUX *aux = it->funcs;
-	ASN1_STREAM_ARG sarg;
-	int rv = 1;
-
-	/* If data is not deteched or resigning then the output BIO is
-	 * already set up to finalise when it is written through.
-	 */
-	if (!(flags & SMIME_DETACHED) || (flags & PKCS7_REUSE_DIGEST))
-		{
-		SMIME_crlf_copy(data, out, flags);
-		return 1;
-		}
-
-	if (!aux || !aux->asn1_cb)
-		{
-		ASN1err(ASN1_F_ASN1_OUTPUT_DATA,
-					ASN1_R_STREAMING_NOT_SUPPORTED);
-		return 0;
-		}
-
-	sarg.out = out;
-	sarg.ndef_bio = NULL;
-	sarg.boundary = NULL;
-
-	/* Let ASN1 code prepend any needed BIOs */
-
-	if (aux->asn1_cb(ASN1_OP_DETACHED_PRE, &val, it, &sarg) <= 0)
-		return 0;
-
-	/* Copy data across, passing through filter BIOs for processing */
-	SMIME_crlf_copy(data, sarg.ndef_bio, flags);
-
-	/* Finalize structure */
-	if (aux->asn1_cb(ASN1_OP_DETACHED_POST, &val, it, &sarg) <= 0)
-		rv = 0;
-
-	/* Now remove any digests prepended to the BIO */
-
-	while (sarg.ndef_bio != out)
-		{
-		tmpbio = BIO_pop(sarg.ndef_bio);
-		BIO_free(sarg.ndef_bio);
-		sarg.ndef_bio = tmpbio;
-		}
-
-	return rv;
-
-	}
-
-/* SMIME reader: handle multipart/signed and opaque signing.
- * in multipart case the content is placed in a memory BIO
- * pointed to by "bcont". In opaque this is set to NULL
- */
-
-ASN1_VALUE *SMIME_read_ASN1(BIO *bio, BIO **bcont, const ASN1_ITEM *it)
-{
-	BIO *asnin;
-	STACK_OF(MIME_HEADER) *headers = NULL;
-	STACK_OF(BIO) *parts = NULL;
-	MIME_HEADER *hdr;
-	MIME_PARAM *prm;
-	ASN1_VALUE *val;
-	int ret;
-
-	if(bcont) *bcont = NULL;
-
-	if (!(headers = mime_parse_hdr(bio))) {
-		ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_MIME_PARSE_ERROR);
-		return NULL;
-	}
-
-	if(!(hdr = mime_hdr_find(headers, "content-type")) || !hdr->value) {
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_CONTENT_TYPE);
-		return NULL;
-	}
-
-	/* Handle multipart/signed */
-
-	if(!strcmp(hdr->value, "multipart/signed")) {
-		/* Split into two parts */
-		prm = mime_param_find(hdr, "boundary");
-		if(!prm || !prm->param_value) {
-			sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-			ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BOUNDARY);
-			return NULL;
-		}
-		ret = multi_split(bio, prm->param_value, &parts);
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		if(!ret || (sk_BIO_num(parts) != 2) ) {
-			ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BODY_FAILURE);
-			sk_BIO_pop_free(parts, BIO_vfree);
-			return NULL;
-		}
-
-		/* Parse the signature piece */
-		asnin = sk_BIO_value(parts, 1);
-
-		if (!(headers = mime_parse_hdr(asnin))) {
-			ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_MIME_SIG_PARSE_ERROR);
-			sk_BIO_pop_free(parts, BIO_vfree);
-			return NULL;
-		}
-
-		/* Get content type */
-
-		if(!(hdr = mime_hdr_find(headers, "content-type")) ||
-								 !hdr->value) {
-			sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-			ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_SIG_CONTENT_TYPE);
-			return NULL;
-		}
-
-		if(strcmp(hdr->value, "application/x-pkcs7-signature") &&
-			strcmp(hdr->value, "application/pkcs7-signature")) {
-			ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_SIG_INVALID_MIME_TYPE);
-			ERR_add_error_data(2, "type: ", hdr->value);
-			sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-			sk_BIO_pop_free(parts, BIO_vfree);
-			return NULL;
-		}
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		/* Read in ASN1 */
-		if(!(val = b64_read_asn1(asnin, it))) {
-			ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_ASN1_SIG_PARSE_ERROR);
-			sk_BIO_pop_free(parts, BIO_vfree);
-			return NULL;
-		}
-
-		if(bcont) {
-			*bcont = sk_BIO_value(parts, 0);
-			BIO_free(asnin);
-			sk_BIO_free(parts);
-		} else sk_BIO_pop_free(parts, BIO_vfree);
-		return val;
-	}
-		
-	/* OK, if not multipart/signed try opaque signature */
-
-	if (strcmp (hdr->value, "application/x-pkcs7-mime") &&
-	    strcmp (hdr->value, "application/pkcs7-mime")) {
-		ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_INVALID_MIME_TYPE);
-		ERR_add_error_data(2, "type: ", hdr->value);
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		return NULL;
-	}
-
-	sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-	
-	if(!(val = b64_read_asn1(bio, it))) {
-		ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_ASN1_PARSE_ERROR);
-		return NULL;
-	}
-	return val;
-
-}
-
-/* Copy text from one BIO to another making the output CRLF at EOL */
-int SMIME_crlf_copy(BIO *in, BIO *out, int flags)
-{
-	BIO *bf;
-	char eol;
-	int len;
-	char linebuf[MAX_SMLEN];
-	/* Buffer output so we don't write one line at a time. This is
-	 * useful when streaming as we don't end up with one OCTET STRING
-	 * per line.
-	 */
-	bf = BIO_new(BIO_f_buffer());
-	if (!bf)
-		return 0;
-	out = BIO_push(bf, out);
-	if(flags & SMIME_BINARY)
-		{
-		while((len = BIO_read(in, linebuf, MAX_SMLEN)) > 0)
-						BIO_write(out, linebuf, len);
-		}
-	else
-		{
-		if(flags & SMIME_TEXT)
-			BIO_printf(out, "Content-Type: text/plain\r\n\r\n");
-		while ((len = BIO_gets(in, linebuf, MAX_SMLEN)) > 0)
-			{
-			eol = strip_eol(linebuf, &len);
-			if (len)
-				BIO_write(out, linebuf, len);
-			if(eol) BIO_write(out, "\r\n", 2);
-			}
-		}
-	(void)BIO_flush(out);
-	BIO_pop(out);
-	BIO_free(bf);
-	return 1;
-}
-
-/* Strip off headers if they are text/plain */
-int SMIME_text(BIO *in, BIO *out)
-{
-	char iobuf[4096];
-	int len;
-	STACK_OF(MIME_HEADER) *headers;
-	MIME_HEADER *hdr;
-
-	if (!(headers = mime_parse_hdr(in))) {
-		ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_MIME_PARSE_ERROR);
-		return 0;
-	}
-	if(!(hdr = mime_hdr_find(headers, "content-type")) || !hdr->value) {
-		ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_MIME_NO_CONTENT_TYPE);
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		return 0;
-	}
-	if (strcmp (hdr->value, "text/plain")) {
-		ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_INVALID_MIME_TYPE);
-		ERR_add_error_data(2, "type: ", hdr->value);
-		sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-		return 0;
-	}
-	sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-	while ((len = BIO_read(in, iobuf, sizeof(iobuf))) > 0)
-						BIO_write(out, iobuf, len);
-	if (len < 0)
-		return 0;
-	return 1;
-}
-
-/* Split a multipart/XXX message body into component parts: result is
- * canonical parts in a STACK of bios
- */
-
-static int multi_split(BIO *bio, char *bound, STACK_OF(BIO) **ret)
-{
-	char linebuf[MAX_SMLEN];
-	int len, blen;
-	int eol = 0, next_eol = 0;
-	BIO *bpart = NULL;
-	STACK_OF(BIO) *parts;
-	char state, part, first;
-
-	blen = strlen(bound);
-	part = 0;
-	state = 0;
-	first = 1;
-	parts = sk_BIO_new_null();
-	*ret = parts;
-	while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
-		state = mime_bound_check(linebuf, len, bound, blen);
-		if(state == 1) {
-			first = 1;
-			part++;
-		} else if(state == 2) {
-			sk_BIO_push(parts, bpart);
-			return 1;
-		} else if(part) {
-			/* Strip CR+LF from linebuf */
-			next_eol = strip_eol(linebuf, &len);
-			if(first) {
-				first = 0;
-				if(bpart) sk_BIO_push(parts, bpart);
-				bpart = BIO_new(BIO_s_mem());
-				BIO_set_mem_eof_return(bpart, 0);
-			} else if (eol)
-				BIO_write(bpart, "\r\n", 2);
-			eol = next_eol;
-			if (len)
-				BIO_write(bpart, linebuf, len);
-		}
-	}
-	return 0;
-}
-
-/* This is the big one: parse MIME header lines up to message body */
-
-#define MIME_INVALID	0
-#define MIME_START	1
-#define MIME_TYPE	2
-#define MIME_NAME	3
-#define MIME_VALUE	4
-#define MIME_QUOTE	5
-#define MIME_COMMENT	6
-
-
-static STACK_OF(MIME_HEADER) *mime_parse_hdr(BIO *bio)
-{
-	char *p, *q, c;
-	char *ntmp;
-	char linebuf[MAX_SMLEN];
-	MIME_HEADER *mhdr = NULL;
-	STACK_OF(MIME_HEADER) *headers;
-	int len, state, save_state = 0;
-
-	headers = sk_MIME_HEADER_new(mime_hdr_cmp);
-	while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
-	/* If whitespace at line start then continuation line */
-	if(mhdr && isspace((unsigned char)linebuf[0])) state = MIME_NAME;
-	else state = MIME_START;
-	ntmp = NULL;
-	/* Go through all characters */
-	for(p = linebuf, q = linebuf; (c = *p) && (c!='\r') && (c!='\n'); p++) {
-
-	/* State machine to handle MIME headers
-	 * if this looks horrible that's because it *is*
-         */
-
-		switch(state) {
-			case MIME_START:
-			if(c == ':') {
-				state = MIME_TYPE;
-				*p = 0;
-				ntmp = strip_ends(q);
-				q = p + 1;
-			}
-			break;
-
-			case MIME_TYPE:
-			if(c == ';') {
-				mime_debug("Found End Value\n");
-				*p = 0;
-				mhdr = mime_hdr_new(ntmp, strip_ends(q));
-				sk_MIME_HEADER_push(headers, mhdr);
-				ntmp = NULL;
-				q = p + 1;
-				state = MIME_NAME;
-			} else if(c == '(') {
-				save_state = state;
-				state = MIME_COMMENT;
-			}
-			break;
-
-			case MIME_COMMENT:
-			if(c == ')') {
-				state = save_state;
-			}
-			break;
-
-			case MIME_NAME:
-			if(c == '=') {
-				state = MIME_VALUE;
-				*p = 0;
-				ntmp = strip_ends(q);
-				q = p + 1;
-			}
-			break ;
-
-			case MIME_VALUE:
-			if(c == ';') {
-				state = MIME_NAME;
-				*p = 0;
-				mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
-				ntmp = NULL;
-				q = p + 1;
-			} else if (c == '"') {
-				mime_debug("Found Quote\n");
-				state = MIME_QUOTE;
-			} else if(c == '(') {
-				save_state = state;
-				state = MIME_COMMENT;
-			}
-			break;
-
-			case MIME_QUOTE:
-			if(c == '"') {
-				mime_debug("Found Match Quote\n");
-				state = MIME_VALUE;
-			}
-			break;
-		}
-	}
-
-	if(state == MIME_TYPE) {
-		mhdr = mime_hdr_new(ntmp, strip_ends(q));
-		sk_MIME_HEADER_push(headers, mhdr);
-	} else if(state == MIME_VALUE)
-			 mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
-	if(p == linebuf) break;	/* Blank line means end of headers */
-}
-
-return headers;
-
-}
-
-static char *strip_ends(char *name)
-{
-	return strip_end(strip_start(name));
-}
-
-/* Strip a parameter of whitespace from start of param */
-static char *strip_start(char *name)
-{
-	char *p, c;
-	/* Look for first non white space or quote */
-	for(p = name; (c = *p) ;p++) {
-		if(c == '"') {
-			/* Next char is start of string if non null */
-			if(p[1]) return p + 1;
-			/* Else null string */
-			return NULL;
-		}
-		if(!isspace((unsigned char)c)) return p;
-	}
-	return NULL;
-}
-
-/* As above but strip from end of string : maybe should handle brackets? */
-static char *strip_end(char *name)
-{
-	char *p, c;
-	if(!name) return NULL;
-	/* Look for first non white space or quote */
-	for(p = name + strlen(name) - 1; p >= name ;p--) {
-		c = *p;
-		if(c == '"') {
-			if(p - 1 == name) return NULL;
-			*p = 0;
-			return name;
-		}
-		if(isspace((unsigned char)c)) *p = 0;	
-		else return name;
-	}
-	return NULL;
-}
-
-static MIME_HEADER *mime_hdr_new(char *name, char *value)
-{
-	MIME_HEADER *mhdr;
-	char *tmpname, *tmpval, *p;
-	int c;
-	if(name) {
-		if(!(tmpname = BUF_strdup(name))) return NULL;
-		for(p = tmpname ; *p; p++) {
-			c = (unsigned char)*p;
-			if(isupper(c)) {
-				c = tolower(c);
-				*p = c;
-			}
-		}
-	} else tmpname = NULL;
-	if(value) {
-		if(!(tmpval = BUF_strdup(value))) return NULL;
-		for(p = tmpval ; *p; p++) {
-			c = (unsigned char)*p;
-			if(isupper(c)) {
-				c = tolower(c);
-				*p = c;
-			}
-		}
-	} else tmpval = NULL;
-	mhdr = (MIME_HEADER *) OPENSSL_malloc(sizeof(MIME_HEADER));
-	if(!mhdr) return NULL;
-	mhdr->name = tmpname;
-	mhdr->value = tmpval;
-	if(!(mhdr->params = sk_MIME_PARAM_new(mime_param_cmp))) return NULL;
-	return mhdr;
-}
-		
-static int mime_hdr_addparam(MIME_HEADER *mhdr, char *name, char *value)
-{
-	char *tmpname, *tmpval, *p;
-	int c;
-	MIME_PARAM *mparam;
-	if(name) {
-		tmpname = BUF_strdup(name);
-		if(!tmpname) return 0;
-		for(p = tmpname ; *p; p++) {
-			c = (unsigned char)*p;
-			if(isupper(c)) {
-				c = tolower(c);
-				*p = c;
-			}
-		}
-	} else tmpname = NULL;
-	if(value) {
-		tmpval = BUF_strdup(value);
-		if(!tmpval) return 0;
-	} else tmpval = NULL;
-	/* Parameter values are case sensitive so leave as is */
-	mparam = (MIME_PARAM *) OPENSSL_malloc(sizeof(MIME_PARAM));
-	if(!mparam) return 0;
-	mparam->param_name = tmpname;
-	mparam->param_value = tmpval;
-	sk_MIME_PARAM_push(mhdr->params, mparam);
-	return 1;
-}
-
-static int mime_hdr_cmp(const MIME_HEADER * const *a,
-			const MIME_HEADER * const *b)
-{
-	if (!(*a)->name || !(*b)->name)
-		return !!(*a)->name - !!(*b)->name;
-
-	return(strcmp((*a)->name, (*b)->name));
-}
-
-static int mime_param_cmp(const MIME_PARAM * const *a,
-			const MIME_PARAM * const *b)
-{
-	if (!(*a)->param_name || !(*b)->param_name)
-		return !!(*a)->param_name - !!(*b)->param_name;
-	return(strcmp((*a)->param_name, (*b)->param_name));
-}
-
-/* Find a header with a given name (if possible) */
-
-static MIME_HEADER *mime_hdr_find(STACK_OF(MIME_HEADER) *hdrs, char *name)
-{
-	MIME_HEADER htmp;
-	int idx;
-	htmp.name = name;
-	idx = sk_MIME_HEADER_find(hdrs, &htmp);
-	if(idx < 0) return NULL;
-	return sk_MIME_HEADER_value(hdrs, idx);
-}
-
-static MIME_PARAM *mime_param_find(MIME_HEADER *hdr, char *name)
-{
-	MIME_PARAM param;
-	int idx;
-	param.param_name = name;
-	idx = sk_MIME_PARAM_find(hdr->params, &param);
-	if(idx < 0) return NULL;
-	return sk_MIME_PARAM_value(hdr->params, idx);
-}
-
-static void mime_hdr_free(MIME_HEADER *hdr)
-{
-	if(hdr->name) OPENSSL_free(hdr->name);
-	if(hdr->value) OPENSSL_free(hdr->value);
-	if(hdr->params) sk_MIME_PARAM_pop_free(hdr->params, mime_param_free);
-	OPENSSL_free(hdr);
-}
-
-static void mime_param_free(MIME_PARAM *param)
-{
-	if(param->param_name) OPENSSL_free(param->param_name);
-	if(param->param_value) OPENSSL_free(param->param_value);
-	OPENSSL_free(param);
-}
-
-/* Check for a multipart boundary. Returns:
- * 0 : no boundary
- * 1 : part boundary
- * 2 : final boundary
- */
-static int mime_bound_check(char *line, int linelen, char *bound, int blen)
-{
-	if(linelen == -1) linelen = strlen(line);
-	if(blen == -1) blen = strlen(bound);
-	/* Quickly eliminate if line length too short */
-	if(blen + 2 > linelen) return 0;
-	/* Check for part boundary */
-	if(!strncmp(line, "--", 2) && !strncmp(line + 2, bound, blen)) {
-		if(!strncmp(line + blen + 2, "--", 2)) return 2;
-		else return 1;
-	}
-	return 0;
-}
-
-static int strip_eol(char *linebuf, int *plen)
-	{
-	int len = *plen;
-	char *p, c;
-	int is_eol = 0;
-	p = linebuf + len - 1;
-	for (p = linebuf + len - 1; len > 0; len--, p--)
-		{
-		c = *p;
-		if (c == '\n')
-			is_eol = 1;
-		else if (c != '\r')
-			break;
-		}
-	*plen = len;
-	return is_eol;
-	}