Back to the standard "app" module.

This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure
I'll have to tweak the final apk name in build.gradle.

1 files changed, 857 insertions, 0 deletions

diff --git a/app/openssl/apps/smime.c b/app/openssl/apps/smime.c
new file mode 100644
index 00000000..c583f8a0
--- /dev/null
+++ b/app/openssl/apps/smime.c
@@ -0,0 +1,857 @@
+/* smime.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2004 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).
+ *
+ */
+
+/* S/MIME utility function */
+
+#include <stdio.h>
+#include <string.h>
+#include "apps.h"
+#include <openssl/crypto.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#include <openssl/x509_vfy.h>
+#include <openssl/x509v3.h>
+
+#undef PROG
+#define PROG smime_main
+static int save_certs(char *signerfile, STACK_OF(X509) *signers);
+static int smime_cb(int ok, X509_STORE_CTX *ctx);
+
+#define SMIME_OP	0x10
+#define SMIME_IP	0x20
+#define SMIME_SIGNERS	0x40
+#define SMIME_ENCRYPT	(1 | SMIME_OP)
+#define SMIME_DECRYPT	(2 | SMIME_IP)
+#define SMIME_SIGN	(3 | SMIME_OP | SMIME_SIGNERS)
+#define SMIME_VERIFY	(4 | SMIME_IP)
+#define SMIME_PK7OUT	(5 | SMIME_IP | SMIME_OP)
+#define SMIME_RESIGN	(6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+	{
+	ENGINE *e = NULL;
+	int operation = 0;
+	int ret = 0;
+	char **args;
+	const char *inmode = "r", *outmode = "w";
+	char *infile = NULL, *outfile = NULL;
+	char *signerfile = NULL, *recipfile = NULL;
+	STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
+	char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
+	const EVP_CIPHER *cipher = NULL;
+	PKCS7 *p7 = NULL;
+	X509_STORE *store = NULL;
+	X509 *cert = NULL, *recip = NULL, *signer = NULL;
+	EVP_PKEY *key = NULL;
+	STACK_OF(X509) *encerts = NULL, *other = NULL;
+	BIO *in = NULL, *out = NULL, *indata = NULL;
+	int badarg = 0;
+	int flags = PKCS7_DETACHED;
+	char *to = NULL, *from = NULL, *subject = NULL;
+	char *CAfile = NULL, *CApath = NULL;
+	char *passargin = NULL, *passin = NULL;
+	char *inrand = NULL;
+	int need_rand = 0;
+	int indef = 0;
+	const EVP_MD *sign_md = NULL;
+	int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
+        int keyform = FORMAT_PEM;
+#ifndef OPENSSL_NO_ENGINE
+	char *engine=NULL;
+#endif
+
+	X509_VERIFY_PARAM *vpm = NULL;
+
+	args = argv + 1;
+	ret = 1;
+
+	apps_startup();
+
+	if (bio_err == NULL)
+		{
+		if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+			BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
+		}
+
+	if (!load_config(bio_err, NULL))
+		goto end;
+
+	while (!badarg && *args && *args[0] == '-')
+		{
+		if (!strcmp (*args, "-encrypt"))
+			operation = SMIME_ENCRYPT;
+		else if (!strcmp (*args, "-decrypt"))
+			operation = SMIME_DECRYPT;
+		else if (!strcmp (*args, "-sign"))
+			operation = SMIME_SIGN;
+		else if (!strcmp (*args, "-resign"))
+			operation = SMIME_RESIGN;
+		else if (!strcmp (*args, "-verify"))
+			operation = SMIME_VERIFY;
+		else if (!strcmp (*args, "-pk7out"))
+			operation = SMIME_PK7OUT;
+#ifndef OPENSSL_NO_DES
+		else if (!strcmp (*args, "-des3")) 
+				cipher = EVP_des_ede3_cbc();
+		else if (!strcmp (*args, "-des")) 
+				cipher = EVP_des_cbc();
+#endif
+#ifndef OPENSSL_NO_SEED
+		else if (!strcmp (*args, "-seed")) 
+				cipher = EVP_seed_cbc();
+#endif
+#ifndef OPENSSL_NO_RC2
+		else if (!strcmp (*args, "-rc2-40")) 
+				cipher = EVP_rc2_40_cbc();
+		else if (!strcmp (*args, "-rc2-128")) 
+				cipher = EVP_rc2_cbc();
+		else if (!strcmp (*args, "-rc2-64")) 
+				cipher = EVP_rc2_64_cbc();
+#endif
+#ifndef OPENSSL_NO_AES
+		else if (!strcmp(*args,"-aes128"))
+				cipher = EVP_aes_128_cbc();
+		else if (!strcmp(*args,"-aes192"))
+				cipher = EVP_aes_192_cbc();
+		else if (!strcmp(*args,"-aes256"))
+				cipher = EVP_aes_256_cbc();
+#endif
+#ifndef OPENSSL_NO_CAMELLIA
+		else if (!strcmp(*args,"-camellia128"))
+				cipher = EVP_camellia_128_cbc();
+		else if (!strcmp(*args,"-camellia192"))
+				cipher = EVP_camellia_192_cbc();
+		else if (!strcmp(*args,"-camellia256"))
+				cipher = EVP_camellia_256_cbc();
+#endif
+		else if (!strcmp (*args, "-text")) 
+				flags |= PKCS7_TEXT;
+		else if (!strcmp (*args, "-nointern")) 
+				flags |= PKCS7_NOINTERN;
+		else if (!strcmp (*args, "-noverify")) 
+				flags |= PKCS7_NOVERIFY;
+		else if (!strcmp (*args, "-nochain")) 
+				flags |= PKCS7_NOCHAIN;
+		else if (!strcmp (*args, "-nocerts")) 
+				flags |= PKCS7_NOCERTS;
+		else if (!strcmp (*args, "-noattr")) 
+				flags |= PKCS7_NOATTR;
+		else if (!strcmp (*args, "-nodetach")) 
+				flags &= ~PKCS7_DETACHED;
+		else if (!strcmp (*args, "-nosmimecap"))
+				flags |= PKCS7_NOSMIMECAP;
+		else if (!strcmp (*args, "-binary"))
+				flags |= PKCS7_BINARY;
+		else if (!strcmp (*args, "-nosigs"))
+				flags |= PKCS7_NOSIGS;
+		else if (!strcmp (*args, "-stream"))
+				indef = 1;
+		else if (!strcmp (*args, "-indef"))
+				indef = 1;
+		else if (!strcmp (*args, "-noindef"))
+				indef = 0;
+		else if (!strcmp (*args, "-nooldmime"))
+				flags |= PKCS7_NOOLDMIMETYPE;
+		else if (!strcmp (*args, "-crlfeol"))
+				flags |= PKCS7_CRLFEOL;
+		else if (!strcmp(*args,"-rand"))
+			{
+			if (!args[1])
+				goto argerr;
+			args++;
+			inrand = *args;
+			need_rand = 1;
+			}
+#ifndef OPENSSL_NO_ENGINE
+		else if (!strcmp(*args,"-engine"))
+			{
+			if (!args[1])
+				goto argerr;
+			engine = *++args;
+			}
+#endif
+		else if (!strcmp(*args,"-passin"))
+			{
+			if (!args[1])
+				goto argerr;
+			passargin = *++args;
+			}
+		else if (!strcmp (*args, "-to"))
+			{
+			if (!args[1])
+				goto argerr;
+			to = *++args;
+			}
+		else if (!strcmp (*args, "-from"))
+			{
+			if (!args[1])
+				goto argerr;
+			from = *++args;
+			}
+		else if (!strcmp (*args, "-subject"))
+			{
+			if (!args[1])
+				goto argerr;
+			subject = *++args;
+			}
+		else if (!strcmp (*args, "-signer"))
+			{
+			if (!args[1])
+				goto argerr;
+			/* If previous -signer argument add signer to list */
+
+			if (signerfile)
+				{
+				if (!sksigners)
+					sksigners = sk_OPENSSL_STRING_new_null();
+				sk_OPENSSL_STRING_push(sksigners, signerfile);
+				if (!keyfile)
+					keyfile = signerfile;
+				if (!skkeys)
+					skkeys = sk_OPENSSL_STRING_new_null();
+				sk_OPENSSL_STRING_push(skkeys, keyfile);
+				keyfile = NULL;
+				}
+			signerfile = *++args;
+			}
+		else if (!strcmp (*args, "-recip"))
+			{
+			if (!args[1])
+				goto argerr;
+			recipfile = *++args;
+			}
+		else if (!strcmp (*args, "-md"))
+			{
+			if (!args[1])
+				goto argerr;
+			sign_md = EVP_get_digestbyname(*++args);
+			if (sign_md == NULL)
+				{
+				BIO_printf(bio_err, "Unknown digest %s\n",
+							*args);
+				goto argerr;
+				}
+			}
+		else if (!strcmp (*args, "-inkey"))
+			{
+			if (!args[1])	
+				goto argerr;
+			/* If previous -inkey arument add signer to list */
+			if (keyfile)
+				{
+				if (!signerfile)
+					{
+					BIO_puts(bio_err, "Illegal -inkey without -signer\n");
+					goto argerr;
+					}
+				if (!sksigners)
+					sksigners = sk_OPENSSL_STRING_new_null();
+				sk_OPENSSL_STRING_push(sksigners, signerfile);
+				signerfile = NULL;
+				if (!skkeys)
+					skkeys = sk_OPENSSL_STRING_new_null();
+				sk_OPENSSL_STRING_push(skkeys, keyfile);
+				}
+			keyfile = *++args;
+			}
+		else if (!strcmp (*args, "-keyform"))
+			{
+			if (!args[1])
+				goto argerr;
+			keyform = str2fmt(*++args);
+			}
+		else if (!strcmp (*args, "-certfile"))
+			{
+			if (!args[1])
+				goto argerr;
+			certfile = *++args;
+			}
+		else if (!strcmp (*args, "-CAfile"))
+			{
+			if (!args[1])
+				goto argerr;
+			CAfile = *++args;
+			}
+		else if (!strcmp (*args, "-CApath"))
+			{
+			if (!args[1])
+				goto argerr;
+			CApath = *++args;
+			}
+		else if (!strcmp (*args, "-in"))
+			{
+			if (!args[1])
+				goto argerr;
+			infile = *++args;
+			}
+		else if (!strcmp (*args, "-inform"))
+			{
+			if (!args[1])
+				goto argerr;
+			informat = str2fmt(*++args);
+			}
+		else if (!strcmp (*args, "-outform"))
+			{
+			if (!args[1])
+				goto argerr;
+			outformat = str2fmt(*++args);
+			}
+		else if (!strcmp (*args, "-out"))
+			{
+			if (!args[1])
+				goto argerr;
+			outfile = *++args;
+			}
+		else if (!strcmp (*args, "-content"))
+			{
+			if (!args[1])
+				goto argerr;
+			contfile = *++args;
+			}
+		else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
+			continue;
+		else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
+			badarg = 1;
+		args++;
+		}
+
+	if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
+		{
+		BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
+		goto argerr;
+		}
+
+	if (operation & SMIME_SIGNERS)
+		{
+		/* Check to see if any final signer needs to be appended */
+		if (keyfile && !signerfile)
+			{
+			BIO_puts(bio_err, "Illegal -inkey without -signer\n");
+			goto argerr;
+			}
+		if (signerfile)
+			{
+			if (!sksigners)
+				sksigners = sk_OPENSSL_STRING_new_null();
+			sk_OPENSSL_STRING_push(sksigners, signerfile);
+			if (!skkeys)
+				skkeys = sk_OPENSSL_STRING_new_null();
+			if (!keyfile)
+				keyfile = signerfile;
+			sk_OPENSSL_STRING_push(skkeys, keyfile);
+			}
+		if (!sksigners)
+			{
+			BIO_printf(bio_err, "No signer certificate specified\n");
+			badarg = 1;
+			}
+		signerfile = NULL;
+		keyfile = NULL;
+		need_rand = 1;
+		}
+	else if (operation == SMIME_DECRYPT)
+		{
+		if (!recipfile && !keyfile)
+			{
+			BIO_printf(bio_err, "No recipient certificate or key specified\n");
+			badarg = 1;
+			}
+		}
+	else if (operation == SMIME_ENCRYPT)
+		{
+		if (!*args)
+			{
+			BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
+			badarg = 1;
+			}
+		need_rand = 1;
+		}
+	else if (!operation)
+		badarg = 1;
+
+	if (badarg)
+		{
+		argerr:
+		BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n");
+		BIO_printf (bio_err, "where options are\n");
+		BIO_printf (bio_err, "-encrypt       encrypt message\n");
+		BIO_printf (bio_err, "-decrypt       decrypt encrypted message\n");
+		BIO_printf (bio_err, "-sign          sign message\n");
+		BIO_printf (bio_err, "-verify        verify signed message\n");
+		BIO_printf (bio_err, "-pk7out        output PKCS#7 structure\n");
+#ifndef OPENSSL_NO_DES
+		BIO_printf (bio_err, "-des3          encrypt with triple DES\n");
+		BIO_printf (bio_err, "-des           encrypt with DES\n");
+#endif
+#ifndef OPENSSL_NO_SEED
+		BIO_printf (bio_err, "-seed          encrypt with SEED\n");
+#endif
+#ifndef OPENSSL_NO_RC2
+		BIO_printf (bio_err, "-rc2-40        encrypt with RC2-40 (default)\n");
+		BIO_printf (bio_err, "-rc2-64        encrypt with RC2-64\n");
+		BIO_printf (bio_err, "-rc2-128       encrypt with RC2-128\n");
+#endif
+#ifndef OPENSSL_NO_AES
+		BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
+		BIO_printf (bio_err, "               encrypt PEM output with cbc aes\n");
+#endif
+#ifndef OPENSSL_NO_CAMELLIA
+		BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
+		BIO_printf (bio_err, "               encrypt PEM output with cbc camellia\n");
+#endif
+		BIO_printf (bio_err, "-nointern      don't search certificates in message for signer\n");
+		BIO_printf (bio_err, "-nosigs        don't verify message signature\n");
+		BIO_printf (bio_err, "-noverify      don't verify signers certificate\n");
+		BIO_printf (bio_err, "-nocerts       don't include signers certificate when signing\n");
+		BIO_printf (bio_err, "-nodetach      use opaque signing\n");
+		BIO_printf (bio_err, "-noattr        don't include any signed attributes\n");
+		BIO_printf (bio_err, "-binary        don't translate message to text\n");
+		BIO_printf (bio_err, "-certfile file other certificates file\n");
+		BIO_printf (bio_err, "-signer file   signer certificate file\n");
+		BIO_printf (bio_err, "-recip  file   recipient certificate file for decryption\n");
+		BIO_printf (bio_err, "-in file       input file\n");
+		BIO_printf (bio_err, "-inform arg    input format SMIME (default), PEM or DER\n");
+		BIO_printf (bio_err, "-inkey file    input private key (if not signer or recipient)\n");
+		BIO_printf (bio_err, "-keyform arg   input private key format (PEM or ENGINE)\n");
+		BIO_printf (bio_err, "-out file      output file\n");
+		BIO_printf (bio_err, "-outform arg   output format SMIME (default), PEM or DER\n");
+		BIO_printf (bio_err, "-content file  supply or override content for detached signature\n");
+		BIO_printf (bio_err, "-to addr       to address\n");
+		BIO_printf (bio_err, "-from ad       from address\n");
+		BIO_printf (bio_err, "-subject s     subject\n");
+		BIO_printf (bio_err, "-text          include or delete text MIME headers\n");
+		BIO_printf (bio_err, "-CApath dir    trusted certificates directory\n");
+		BIO_printf (bio_err, "-CAfile file   trusted certificates file\n");
+		BIO_printf (bio_err, "-crl_check     check revocation status of signer's certificate using CRLs\n");
+		BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
+#ifndef OPENSSL_NO_ENGINE
+		BIO_printf (bio_err, "-engine e      use engine e, possibly a hardware device.\n");
+#endif
+		BIO_printf (bio_err, "-passin arg    input file pass phrase source\n");
+		BIO_printf(bio_err,  "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
+		BIO_printf(bio_err,  "               load the file (or the files in the directory) into\n");
+		BIO_printf(bio_err,  "               the random number generator\n");
+		BIO_printf (bio_err, "cert.pem       recipient certificate(s) for encryption\n");
+		goto end;
+		}
+
+#ifndef OPENSSL_NO_ENGINE
+        e = setup_engine(bio_err, engine, 0);
+#endif
+
+	if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
+		{
+		BIO_printf(bio_err, "Error getting password\n");
+		goto end;
+		}
+
+	if (need_rand)
+		{
+		app_RAND_load_file(NULL, bio_err, (inrand != NULL));
+		if (inrand != NULL)
+			BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
+				app_RAND_load_files(inrand));
+		}
+
+	ret = 2;
+
+	if (!(operation & SMIME_SIGNERS))
+		flags &= ~PKCS7_DETACHED;
+
+	if (operation & SMIME_OP)
+		{
+		if (outformat == FORMAT_ASN1)
+			outmode = "wb";
+		}
+	else
+		{
+		if (flags & PKCS7_BINARY)
+			outmode = "wb";
+		}
+
+	if (operation & SMIME_IP)
+		{
+		if (informat == FORMAT_ASN1)
+			inmode = "rb";
+		}
+	else
+		{
+		if (flags & PKCS7_BINARY)
+			inmode = "rb";
+		}
+
+	if (operation == SMIME_ENCRYPT)
+		{
+		if (!cipher)
+			{
+#ifndef OPENSSL_NO_RC2			
+			cipher = EVP_rc2_40_cbc();
+#else
+			BIO_printf(bio_err, "No cipher selected\n");
+			goto end;
+#endif
+			}
+		encerts = sk_X509_new_null();
+		while (*args)
+			{
+			if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
+				NULL, e, "recipient certificate file")))
+				{
+#if 0				/* An appropriate message is already printed */
+				BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
+#endif
+				goto end;
+				}
+			sk_X509_push(encerts, cert);
+			cert = NULL;
+			args++;
+			}
+		}
+
+	if (certfile)
+		{
+		if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
+			e, "certificate file")))
+			{
+			ERR_print_errors(bio_err);
+			goto end;
+			}
+		}
+
+	if (recipfile && (operation == SMIME_DECRYPT))
+		{
+		if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
+			e, "recipient certificate file")))
+			{
+			ERR_print_errors(bio_err);
+			goto end;
+			}
+		}
+
+	if (operation == SMIME_DECRYPT)
+		{
+		if (!keyfile)
+			keyfile = recipfile;
+		}
+	else if (operation == SMIME_SIGN)
+		{
+		if (!keyfile)
+			keyfile = signerfile;
+		}
+	else keyfile = NULL;
+
+	if (keyfile)
+		{
+		key = load_key(bio_err, keyfile, keyform, 0, passin, e,
+			       "signing key file");
+		if (!key)
+			goto end;
+		}
+
+	if (infile)
+		{
+		if (!(in = BIO_new_file(infile, inmode)))
+			{
+			BIO_printf (bio_err,
+				 "Can't open input file %s\n", infile);
+			goto end;
+			}
+		}
+	else
+		in = BIO_new_fp(stdin, BIO_NOCLOSE);
+
+	if (operation & SMIME_IP)
+		{
+		if (informat == FORMAT_SMIME) 
+			p7 = SMIME_read_PKCS7(in, &indata);
+		else if (informat == FORMAT_PEM) 
+			p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
+		else if (informat == FORMAT_ASN1) 
+			p7 = d2i_PKCS7_bio(in, NULL);
+		else
+			{
+			BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
+			goto end;
+			}
+
+		if (!p7)
+			{
+			BIO_printf(bio_err, "Error reading S/MIME message\n");
+			goto end;
+			}
+		if (contfile)
+			{
+			BIO_free(indata);
+			if (!(indata = BIO_new_file(contfile, "rb")))
+				{
+				BIO_printf(bio_err, "Can't read content file %s\n", contfile);
+				goto end;
+				}
+			}
+		}
+
+	if (outfile)
+		{
+		if (!(out = BIO_new_file(outfile, outmode)))
+			{
+			BIO_printf (bio_err,
+				 "Can't open output file %s\n", outfile);
+			goto end;
+			}
+		}
+	else
+		{
+		out = BIO_new_fp(stdout, BIO_NOCLOSE);
+#ifdef OPENSSL_SYS_VMS
+		{
+		    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+		    out = BIO_push(tmpbio, out);
+		}
+#endif
+		}
+
+	if (operation == SMIME_VERIFY)
+		{
+		if (!(store = setup_verify(bio_err, CAfile, CApath)))
+			goto end;
+		X509_STORE_set_verify_cb(store, smime_cb);
+		if (vpm)
+			X509_STORE_set1_param(store, vpm);
+		}
+
+
+	ret = 3;
+
+	if (operation == SMIME_ENCRYPT)
+		{
+		if (indef)
+			flags |= PKCS7_STREAM;
+		p7 = PKCS7_encrypt(encerts, in, cipher, flags);
+		}
+	else if (operation & SMIME_SIGNERS)
+		{
+		int i;
+		/* If detached data content we only enable streaming if
+		 * S/MIME output format.
+		 */
+		if (operation == SMIME_SIGN)
+			{
+			if (flags & PKCS7_DETACHED)
+				{
+				if (outformat == FORMAT_SMIME)
+					flags |= PKCS7_STREAM;
+				}
+			else if (indef)
+				flags |= PKCS7_STREAM;
+			flags |= PKCS7_PARTIAL;
+			p7 = PKCS7_sign(NULL, NULL, other, in, flags);
+			if (!p7)
+				goto end;
+			}
+		else
+			flags |= PKCS7_REUSE_DIGEST;
+		for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++)
+			{
+			signerfile = sk_OPENSSL_STRING_value(sksigners, i);
+			keyfile = sk_OPENSSL_STRING_value(skkeys, i);
+			signer = load_cert(bio_err, signerfile,FORMAT_PEM, NULL,
+					e, "signer certificate");
+			if (!signer)
+				goto end;
+			key = load_key(bio_err, keyfile, keyform, 0, passin, e,
+			       "signing key file");
+			if (!key)
+				goto end;
+			if (!PKCS7_sign_add_signer(p7, signer, key,
+						sign_md, flags))
+				goto end;
+			X509_free(signer);
+			signer = NULL;
+			EVP_PKEY_free(key);
+			key = NULL;
+			}
+		/* If not streaming or resigning finalize structure */
+		if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM))
+			{
+			if (!PKCS7_final(p7, in, flags))
+				goto end;
+			}
+		}
+
+	if (!p7)
+		{
+		BIO_printf(bio_err, "Error creating PKCS#7 structure\n");
+		goto end;
+		}
+
+	ret = 4;
+	if (operation == SMIME_DECRYPT)
+		{
+		if (!PKCS7_decrypt(p7, key, recip, out, flags))
+			{
+			BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n");
+			goto end;
+			}
+		}
+	else if (operation == SMIME_VERIFY)
+		{
+		STACK_OF(X509) *signers;
+		if (PKCS7_verify(p7, other, store, indata, out, flags))
+			BIO_printf(bio_err, "Verification successful\n");
+		else
+			{
+			BIO_printf(bio_err, "Verification failure\n");
+			goto end;
+			}
+		signers = PKCS7_get0_signers(p7, other, flags);
+		if (!save_certs(signerfile, signers))
+			{
+			BIO_printf(bio_err, "Error writing signers to %s\n",
+								signerfile);
+			ret = 5;
+			goto end;
+			}
+		sk_X509_free(signers);
+		}
+	else if (operation == SMIME_PK7OUT)
+		PEM_write_bio_PKCS7(out, p7);
+	else
+		{
+		if (to)
+			BIO_printf(out, "To: %s\n", to);
+		if (from)
+			BIO_printf(out, "From: %s\n", from);
+		if (subject)
+			BIO_printf(out, "Subject: %s\n", subject);
+		if (outformat == FORMAT_SMIME) 
+			{
+			if (operation == SMIME_RESIGN)
+				SMIME_write_PKCS7(out, p7, indata, flags);
+			else
+				SMIME_write_PKCS7(out, p7, in, flags);
+			}
+		else if (outformat == FORMAT_PEM) 
+			PEM_write_bio_PKCS7_stream(out, p7, in, flags);
+		else if (outformat == FORMAT_ASN1) 
+			i2d_PKCS7_bio_stream(out,p7, in, flags);
+		else
+			{
+			BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
+			goto end;
+			}
+		}
+	ret = 0;
+end:
+	if (need_rand)
+		app_RAND_write_file(NULL, bio_err);
+	if (ret) ERR_print_errors(bio_err);
+	sk_X509_pop_free(encerts, X509_free);
+	sk_X509_pop_free(other, X509_free);
+	if (vpm)
+		X509_VERIFY_PARAM_free(vpm);
+	if (sksigners)
+		sk_OPENSSL_STRING_free(sksigners);
+	if (skkeys)
+		sk_OPENSSL_STRING_free(skkeys);
+	X509_STORE_free(store);
+	X509_free(cert);
+	X509_free(recip);
+	X509_free(signer);
+	EVP_PKEY_free(key);
+	PKCS7_free(p7);
+	BIO_free(in);
+	BIO_free(indata);
+	BIO_free_all(out);
+	if (passin) OPENSSL_free(passin);
+	return (ret);
+}
+
+static int save_certs(char *signerfile, STACK_OF(X509) *signers)
+	{
+	int i;
+	BIO *tmp;
+	if (!signerfile)
+		return 1;
+	tmp = BIO_new_file(signerfile, "w");
+	if (!tmp) return 0;
+	for(i = 0; i < sk_X509_num(signers); i++)
+		PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
+	BIO_free(tmp);
+	return 1;
+	}
+	
+
+/* Minimal callback just to output policy info (if any) */
+
+static int smime_cb(int ok, X509_STORE_CTX *ctx)
+	{
+	int error;
+
+	error = X509_STORE_CTX_get_error(ctx);
+
+	if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
+		&& ((error != X509_V_OK) || (ok != 2)))
+		return ok;
+
+	policies_print(NULL, ctx);
+
+	return ok;
+
+	}