/* smime.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 1999.
+ * project.
*/
/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ * 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
#include <openssl/crypto.h>
#include <openssl/pem.h>
#include <openssl/err.h>
-#include <openssl/engine.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_ENCRYPT (1 | SMIME_OP)
int MAIN(int, char **);
int MAIN(int argc, char **argv)
-{
+ {
ENGINE *e = NULL;
int operation = 0;
int ret = 0;
char **args;
- char *inmode = "r", *outmode = "w";
+ const char *inmode = "r", *outmode = "w";
char *infile = NULL, *outfile = NULL;
char *signerfile = NULL, *recipfile = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
STACK_OF(X509) *encerts = NULL, *other = NULL;
BIO *in = NULL, *out = NULL, *indata = NULL;
int badarg = 0;
- int flags = PKCS7_DETACHED, store_flags = 0;
+ int flags = PKCS7_DETACHED;
char *to = NULL, *from = NULL, *subject = NULL;
char *CAfile = NULL, *CApath = NULL;
char *passargin = NULL, *passin = NULL;
int need_rand = 0;
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;
- 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, "-verify")) operation = SMIME_VERIFY;
- else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT;
+ 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, "-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();
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
else if (!strcmp (*args, "-text"))
flags |= PKCS7_TEXT;
flags |= PKCS7_BINARY;
else if (!strcmp (*args, "-nosigs"))
flags |= PKCS7_NOSIGS;
- else if (!strcmp (*args, "-crl_check"))
- store_flags |= X509_V_FLAG_CRL_CHECK;
- else if (!strcmp (*args, "-crl_check_all"))
- store_flags |= X509_V_FLAG_CRL_CHECK|X509_V_FLAG_CRL_CHECK_ALL;
- else if (!strcmp(*args,"-rand")) {
- if (args[1]) {
+ else if (!strcmp (*args, "-nooldmime"))
+ flags |= PKCS7_NOOLDMIMETYPE;
+ else if (!strcmp (*args, "-crlfeol"))
+ flags |= PKCS7_CRLFEOL;
+ else if (!strcmp(*args,"-rand"))
+ {
+ if (args[1])
+ {
args++;
inrand = *args;
- } else badarg = 1;
+ }
+ else
+ badarg = 1;
need_rand = 1;
- } else if (!strcmp(*args,"-engine")) {
- if (args[1]) {
+ }
+#ifndef OPENSSL_NO_ENGINE
+ else if (!strcmp(*args,"-engine"))
+ {
+ if (args[1])
+ {
args++;
engine = *args;
- } else badarg = 1;
- } else if (!strcmp(*args,"-passin")) {
- if (args[1]) {
+ }
+ else badarg = 1;
+ }
+#endif
+ else if (!strcmp(*args,"-passin"))
+ {
+ if (args[1])
+ {
args++;
passargin = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-to")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-to"))
+ {
+ if (args[1])
+ {
args++;
to = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-from")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-from"))
+ {
+ if (args[1])
+ {
args++;
from = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-subject")) {
- if (args[1]) {
+ }
+ else badarg = 1;
+ }
+ else if (!strcmp (*args, "-subject"))
+ {
+ if (args[1])
+ {
args++;
subject = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-signer")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-signer"))
+ {
+ if (args[1])
+ {
args++;
signerfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-recip")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-recip"))
+ {
+ if (args[1])
+ {
args++;
recipfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-inkey")) {
- if (args[1]) {
+ }
+ else badarg = 1;
+ }
+ else if (!strcmp (*args, "-inkey"))
+ {
+ if (args[1])
+ {
args++;
keyfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-keyform")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-keyform"))
+ {
+ if (args[1])
+ {
args++;
keyform = str2fmt(*args);
- } else badarg = 1;
- } else if (!strcmp (*args, "-certfile")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-certfile"))
+ {
+ if (args[1])
+ {
args++;
certfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-CAfile")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-CAfile"))
+ {
+ if (args[1])
+ {
args++;
CAfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-CApath")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-CApath"))
+ {
+ if (args[1])
+ {
args++;
CApath = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-in")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-in"))
+ {
+ if (args[1])
+ {
args++;
infile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-inform")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-inform"))
+ {
+ if (args[1])
+ {
args++;
informat = str2fmt(*args);
- } else badarg = 1;
- } else if (!strcmp (*args, "-outform")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-outform"))
+ {
+ if (args[1])
+ {
args++;
outformat = str2fmt(*args);
- } else badarg = 1;
- } else if (!strcmp (*args, "-out")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-out"))
+ {
+ if (args[1])
+ {
args++;
outfile = *args;
- } else badarg = 1;
- } else if (!strcmp (*args, "-content")) {
- if (args[1]) {
+ }
+ else
+ badarg = 1;
+ }
+ else if (!strcmp (*args, "-content"))
+ {
+ if (args[1])
+ {
args++;
contfile = *args;
- } else badarg = 1;
- } else badarg = 1;
+ }
+ else
+ badarg = 1;
+ }
+ else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
+ continue;
+ else
+ badarg = 1;
args++;
- }
+ }
- if(operation == SMIME_SIGN) {
- if(!signerfile) {
+
+ if (operation == SMIME_SIGN)
+ {
+ if (!signerfile)
+ {
BIO_printf(bio_err, "No signer certificate specified\n");
badarg = 1;
- }
+ }
need_rand = 1;
- } else if(operation == SMIME_DECRYPT) {
- if(!recipfile) {
- BIO_printf(bio_err, "No recipient certificate and key specified\n");
+ }
+ 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) {
+ 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;
+ }
+ else if (!operation)
+ badarg = 1;
- if (badarg) {
+ if (badarg)
+ {
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, "-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
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, "-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)) {
+ if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
+ {
BIO_printf(bio_err, "Error getting password\n");
goto end;
- }
+ }
- if (need_rand) {
+ 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_SIGN) flags &= ~PKCS7_DETACHED;
+ if (operation != SMIME_SIGN)
+ flags &= ~PKCS7_DETACHED;
- if(operation & SMIME_OP) {
- if(flags & PKCS7_BINARY) inmode = "rb";
- if(outformat == FORMAT_ASN1) outmode = "wb";
- } else {
- if(flags & PKCS7_BINARY) outmode = "wb";
- if(informat == FORMAT_ASN1) inmode = "rb";
- }
+ if (operation & SMIME_OP)
+ {
+ if (flags & PKCS7_BINARY)
+ inmode = "rb";
+ if (outformat == FORMAT_ASN1)
+ outmode = "wb";
+ }
+ else
+ {
+ if (flags & PKCS7_BINARY)
+ outmode = "wb";
+ if (informat == FORMAT_ASN1)
+ inmode = "rb";
+ }
- if(operation == SMIME_ENCRYPT) {
- if (!cipher) {
+ 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"))) {
+ 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(signerfile && (operation == SMIME_SIGN)) {
- if(!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL,
- e, "signer certificate"))) {
+ if (signerfile && (operation == SMIME_SIGN))
+ {
+ if (!(signer = load_cert(bio_err,signerfile,FORMAT_PEM, NULL,
+ e, "signer certificate")))
+ {
#if 0 /* An appropri message has already been printed */
BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile);
#endif
goto end;
+ }
}
- }
- if(certfile) {
- if(!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
- e, "certificate file"))) {
+ if (certfile)
+ {
+ if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
+ e, "certificate file")))
+ {
#if 0 /* An appropriate message has already been printed */
BIO_printf(bio_err, "Can't read certificate file %s\n", certfile);
#endif
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"))) {
+ if (recipfile && (operation == SMIME_DECRYPT))
+ {
+ if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
+ e, "recipient certificate file")))
+ {
#if 0 /* An appropriate message has alrady been printed */
BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile);
#endif
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 (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, passin, e,
+ if (keyfile)
+ {
+ key = load_key(bio_err, keyfile, keyform, 0, passin, e,
"signing key file");
- if (!key) {
+ if (!key)
goto end;
- }
- }
+ }
- if (infile) {
- if (!(in = BIO_new_file(infile, inmode))) {
+ 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);
+ else
+ in = BIO_new_fp(stdin, BIO_NOCLOSE);
- if (outfile) {
- if (!(out = BIO_new_file(outfile, outmode))) {
+ if (outfile)
+ {
+ if (!(out = BIO_new_file(outfile, outmode)))
+ {
BIO_printf (bio_err,
"Can't open output file %s\n", outfile);
goto end;
+ }
}
- } else {
+ else
+ {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
out = BIO_push(tmpbio, out);
}
#endif
- }
+ }
- if(operation == SMIME_VERIFY) {
- if(!(store = setup_verify(bio_err, CAfile, CApath))) goto end;
- X509_STORE_set_flags(store, store_flags);
- }
+ if (operation == SMIME_VERIFY)
+ {
+ if (!(store = setup_verify(bio_err, CAfile, CApath)))
+ goto end;
+ X509_STORE_set_verify_cb_func(store, smime_cb);
+ if (vpm)
+ X509_STORE_set1_param(store, vpm);
+ }
ret = 3;
- if(operation == SMIME_ENCRYPT) {
+ if (operation == SMIME_ENCRYPT)
p7 = PKCS7_encrypt(encerts, in, cipher, flags);
- } else if(operation == SMIME_SIGN) {
+ else if (operation == SMIME_SIGN)
+ {
+ /* If detached data and SMIME output enable partial
+ * signing.
+ */
+ if ((flags & PKCS7_DETACHED) && (outformat == FORMAT_SMIME))
+ flags |= PKCS7_STREAM;
p7 = PKCS7_sign(signer, key, other, in, flags);
- BIO_reset(in);
- } else {
- if(informat == FORMAT_SMIME)
+ /* Don't need to rewind for partial signing */
+ if (!(flags & PKCS7_STREAM) && (BIO_reset(in) != 0))
+ {
+ BIO_printf(bio_err, "Can't rewind input file\n");
+ goto end;
+ }
+ }
+ else
+ {
+ if (informat == FORMAT_SMIME)
p7 = SMIME_read_PKCS7(in, &indata);
- else if(informat == FORMAT_PEM)
+ else if (informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
- else if(informat == FORMAT_ASN1)
+ else if (informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
- else {
+ else
+ {
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
goto end;
- }
+ }
- if(!p7) {
+ if (!p7)
+ {
BIO_printf(bio_err, "Error reading S/MIME message\n");
goto end;
- }
- if(contfile) {
+ }
+ if (contfile)
+ {
BIO_free(indata);
- if(!(indata = BIO_new_file(contfile, "rb"))) {
+ if (!(indata = BIO_new_file(contfile, "rb")))
+ {
BIO_printf(bio_err, "Can't read content file %s\n", contfile);
goto end;
+ }
}
}
- }
- if(!p7) {
+ 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)) {
+ 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) {
+ 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");
+ 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)) {
+ 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) {
+ }
+ 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)
+ 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)
SMIME_write_PKCS7(out, p7, in, flags);
- else if(outformat == FORMAT_PEM)
+ else if (outformat == FORMAT_PEM)
PEM_write_bio_PKCS7(out,p7);
- else if(outformat == FORMAT_ASN1)
+ else if (outformat == FORMAT_ASN1)
i2d_PKCS7_bio(out,p7);
- else {
+ 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);
+ 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);
X509_STORE_free(store);
X509_free(cert);
X509_free(recip);
BIO_free(in);
BIO_free(indata);
BIO_free_all(out);
- if(passin) OPENSSL_free(passin);
+ 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;
+ if (!signerfile)
+ return 1;
tmp = BIO_new_file(signerfile, "w");
- if(!tmp) return 0;
+ 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;
+
+ }