| /* |
| * Copyright 1999-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| /* S/MIME utility function */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include "apps.h" |
| #include "progs.h" |
| #include <openssl/crypto.h> |
| #include <openssl/pem.h> |
| #include <openssl/err.h> |
| #include <openssl/x509_vfy.h> |
| #include <openssl/x509v3.h> |
| |
| 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) |
| |
| typedef enum OPTION_choice { |
| OPT_COMMON, |
| OPT_ENCRYPT, OPT_DECRYPT, OPT_SIGN, OPT_RESIGN, OPT_VERIFY, |
| OPT_PK7OUT, OPT_TEXT, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCHAIN, |
| OPT_NOCERTS, OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, |
| OPT_BINARY, OPT_NOSIGS, OPT_STREAM, OPT_INDEF, OPT_NOINDEF, |
| OPT_CRLFEOL, OPT_ENGINE, OPT_PASSIN, |
| OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP, OPT_MD, |
| OPT_CIPHER, OPT_INKEY, OPT_KEYFORM, OPT_CERTFILE, OPT_CAFILE, |
| OPT_CAPATH, OPT_CASTORE, OPT_NOCAFILE, OPT_NOCAPATH, OPT_NOCASTORE, |
| OPT_R_ENUM, OPT_PROV_ENUM, OPT_CONFIG, |
| OPT_V_ENUM, |
| OPT_IN, OPT_INFORM, OPT_OUT, |
| OPT_OUTFORM, OPT_CONTENT |
| } OPTION_CHOICE; |
| |
| const OPTIONS smime_options[] = { |
| {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cert...]\n"}, |
| |
| OPT_SECTION("General"), |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"in", OPT_IN, '<', "Input file"}, |
| {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"}, |
| {"out", OPT_OUT, '>', "Output file"}, |
| {"outform", OPT_OUTFORM, 'c', |
| "Output format SMIME (default), PEM or DER"}, |
| {"inkey", OPT_INKEY, 's', |
| "Input private key (if not signer or recipient)"}, |
| {"keyform", OPT_KEYFORM, 'f', "Input private key format (ENGINE, other values ignored)"}, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| {"stream", OPT_STREAM, '-', "Enable CMS streaming" }, |
| {"indef", OPT_INDEF, '-', "Same as -stream" }, |
| {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"}, |
| OPT_CONFIG_OPTION, |
| |
| OPT_SECTION("Action"), |
| {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"}, |
| {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"}, |
| {"sign", OPT_SIGN, '-', "Sign message"}, |
| {"resign", OPT_RESIGN, '-', "Resign a signed message"}, |
| {"verify", OPT_VERIFY, '-', "Verify signed message"}, |
| |
| OPT_SECTION("Signing/Encryption"), |
| {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, |
| {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"}, |
| {"", OPT_CIPHER, '-', "Any supported cipher"}, |
| {"pk7out", OPT_PK7OUT, '-', "Output PKCS#7 structure"}, |
| {"nointern", OPT_NOINTERN, '-', |
| "Don't search certificates in message for signer"}, |
| {"nodetach", OPT_NODETACH, '-', "Use opaque signing"}, |
| {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"}, |
| {"binary", OPT_BINARY, '-', "Don't translate message to text"}, |
| {"signer", OPT_SIGNER, 's', "Signer certificate file"}, |
| {"content", OPT_CONTENT, '<', |
| "Supply or override content for detached signature"}, |
| {"nocerts", OPT_NOCERTS, '-', |
| "Don't include signers certificate when signing"}, |
| |
| OPT_SECTION("Verification/Decryption"), |
| {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"}, |
| {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"}, |
| |
| {"certfile", OPT_CERTFILE, '<', "Other certificates file"}, |
| {"recip", OPT_RECIP, '<', "Recipient certificate file for decryption"}, |
| |
| OPT_SECTION("Email"), |
| {"to", OPT_TO, 's', "To address"}, |
| {"from", OPT_FROM, 's', "From address"}, |
| {"subject", OPT_SUBJECT, 's', "Subject"}, |
| {"text", OPT_TEXT, '-', "Include or delete text MIME headers"}, |
| {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"}, |
| |
| OPT_SECTION("Certificate chain"), |
| {"CApath", OPT_CAPATH, '/', "Trusted certificates directory"}, |
| {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, |
| {"CAstore", OPT_CASTORE, ':', "Trusted certificates store URI"}, |
| {"no-CAfile", OPT_NOCAFILE, '-', |
| "Do not load the default certificates file"}, |
| {"no-CApath", OPT_NOCAPATH, '-', |
| "Do not load certificates from the default certificates directory"}, |
| {"no-CAstore", OPT_NOCASTORE, '-', |
| "Do not load certificates from the default certificates store"}, |
| {"nochain", OPT_NOCHAIN, '-', |
| "set PKCS7_NOCHAIN so certificates contained in the message are not used as untrusted CAs" }, |
| {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only"}, |
| |
| OPT_R_OPTIONS, |
| OPT_V_OPTIONS, |
| OPT_PROV_OPTIONS, |
| |
| OPT_PARAMETERS(), |
| {"cert", 0, 0, "Recipient certs, used when encrypting"}, |
| {NULL} |
| }; |
| |
| int smime_main(int argc, char **argv) |
| { |
| CONF *conf = NULL; |
| BIO *in = NULL, *out = NULL, *indata = NULL; |
| EVP_PKEY *key = NULL; |
| PKCS7 *p7 = NULL; |
| STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; |
| STACK_OF(X509) *encerts = NULL, *other = NULL; |
| X509 *cert = NULL, *recip = NULL, *signer = NULL; |
| X509_STORE *store = NULL; |
| X509_VERIFY_PARAM *vpm = NULL; |
| EVP_CIPHER *cipher = NULL; |
| EVP_MD *sign_md = NULL; |
| const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog = NULL; |
| char *certfile = NULL, *keyfile = NULL, *contfile = NULL; |
| char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile = NULL; |
| char *passinarg = NULL, *passin = NULL, *to = NULL, *from = NULL; |
| char *subject = NULL, *digestname = NULL, *ciphername = NULL; |
| OPTION_CHOICE o; |
| int noCApath = 0, noCAfile = 0, noCAstore = 0; |
| int flags = PKCS7_DETACHED, operation = 0, ret = 0, indef = 0; |
| int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform = |
| FORMAT_UNDEF; |
| int vpmtouched = 0, rv = 0; |
| ENGINE *e = NULL; |
| const char *mime_eol = "\n"; |
| OSSL_LIB_CTX *libctx = app_get0_libctx(); |
| |
| if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
| return 1; |
| |
| opt_set_unknown_name("cipher"); |
| prog = opt_init(argc, argv, smime_options); |
| while ((o = opt_next()) != OPT_EOF) { |
| switch (o) { |
| case OPT_EOF: |
| case OPT_ERR: |
| opthelp: |
| BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| goto end; |
| case OPT_HELP: |
| opt_help(smime_options); |
| ret = 0; |
| goto end; |
| case OPT_INFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat)) |
| goto opthelp; |
| break; |
| case OPT_IN: |
| infile = opt_arg(); |
| break; |
| case OPT_OUTFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat)) |
| goto opthelp; |
| break; |
| case OPT_OUT: |
| outfile = opt_arg(); |
| break; |
| case OPT_ENCRYPT: |
| operation = SMIME_ENCRYPT; |
| break; |
| case OPT_DECRYPT: |
| operation = SMIME_DECRYPT; |
| break; |
| case OPT_SIGN: |
| operation = SMIME_SIGN; |
| break; |
| case OPT_RESIGN: |
| operation = SMIME_RESIGN; |
| break; |
| case OPT_VERIFY: |
| operation = SMIME_VERIFY; |
| break; |
| case OPT_PK7OUT: |
| operation = SMIME_PK7OUT; |
| break; |
| case OPT_TEXT: |
| flags |= PKCS7_TEXT; |
| break; |
| case OPT_NOINTERN: |
| flags |= PKCS7_NOINTERN; |
| break; |
| case OPT_NOVERIFY: |
| flags |= PKCS7_NOVERIFY; |
| break; |
| case OPT_NOCHAIN: |
| flags |= PKCS7_NOCHAIN; |
| break; |
| case OPT_NOCERTS: |
| flags |= PKCS7_NOCERTS; |
| break; |
| case OPT_NOATTR: |
| flags |= PKCS7_NOATTR; |
| break; |
| case OPT_NODETACH: |
| flags &= ~PKCS7_DETACHED; |
| break; |
| case OPT_NOSMIMECAP: |
| flags |= PKCS7_NOSMIMECAP; |
| break; |
| case OPT_BINARY: |
| flags |= PKCS7_BINARY; |
| break; |
| case OPT_NOSIGS: |
| flags |= PKCS7_NOSIGS; |
| break; |
| case OPT_STREAM: |
| case OPT_INDEF: |
| indef = 1; |
| break; |
| case OPT_NOINDEF: |
| indef = 0; |
| break; |
| case OPT_CRLFEOL: |
| flags |= PKCS7_CRLFEOL; |
| mime_eol = "\r\n"; |
| break; |
| case OPT_R_CASES: |
| if (!opt_rand(o)) |
| goto end; |
| break; |
| case OPT_PROV_CASES: |
| if (!opt_provider(o)) |
| goto end; |
| break; |
| case OPT_CONFIG: |
| conf = app_load_config_modules(opt_arg()); |
| if (conf == NULL) |
| goto end; |
| break; |
| case OPT_ENGINE: |
| e = setup_engine(opt_arg(), 0); |
| break; |
| case OPT_PASSIN: |
| passinarg = opt_arg(); |
| break; |
| case OPT_TO: |
| to = opt_arg(); |
| break; |
| case OPT_FROM: |
| from = opt_arg(); |
| break; |
| case OPT_SUBJECT: |
| subject = opt_arg(); |
| break; |
| case OPT_SIGNER: |
| /* If previous -signer argument add signer to list */ |
| if (signerfile != NULL) { |
| if (sksigners == NULL |
| && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| sk_OPENSSL_STRING_push(sksigners, signerfile); |
| if (keyfile == NULL) |
| keyfile = signerfile; |
| if (skkeys == NULL |
| && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| sk_OPENSSL_STRING_push(skkeys, keyfile); |
| keyfile = NULL; |
| } |
| signerfile = opt_arg(); |
| break; |
| case OPT_RECIP: |
| recipfile = opt_arg(); |
| break; |
| case OPT_MD: |
| digestname = opt_arg(); |
| break; |
| case OPT_CIPHER: |
| ciphername = opt_unknown(); |
| break; |
| case OPT_INKEY: |
| /* If previous -inkey argument add signer to list */ |
| if (keyfile != NULL) { |
| if (signerfile == NULL) { |
| BIO_printf(bio_err, |
| "%s: Must have -signer before -inkey\n", prog); |
| goto opthelp; |
| } |
| if (sksigners == NULL |
| && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| sk_OPENSSL_STRING_push(sksigners, signerfile); |
| signerfile = NULL; |
| if (skkeys == NULL |
| && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| sk_OPENSSL_STRING_push(skkeys, keyfile); |
| } |
| keyfile = opt_arg(); |
| break; |
| case OPT_KEYFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) |
| goto opthelp; |
| break; |
| case OPT_CERTFILE: |
| certfile = opt_arg(); |
| break; |
| case OPT_CAFILE: |
| CAfile = opt_arg(); |
| break; |
| case OPT_CAPATH: |
| CApath = opt_arg(); |
| break; |
| case OPT_CASTORE: |
| CAstore = opt_arg(); |
| break; |
| case OPT_NOCAFILE: |
| noCAfile = 1; |
| break; |
| case OPT_NOCAPATH: |
| noCApath = 1; |
| break; |
| case OPT_NOCASTORE: |
| noCAstore = 1; |
| break; |
| case OPT_CONTENT: |
| contfile = opt_arg(); |
| break; |
| case OPT_V_CASES: |
| if (!opt_verify(o, vpm)) |
| goto opthelp; |
| vpmtouched++; |
| break; |
| } |
| } |
| |
| /* Extra arguments are files with recipient keys. */ |
| argc = opt_num_rest(); |
| argv = opt_rest(); |
| |
| if (!app_RAND_load()) |
| goto end; |
| |
| if (digestname != NULL) { |
| if (!opt_md(digestname, &sign_md)) |
| goto opthelp; |
| } |
| if (!opt_cipher_any(ciphername, &cipher)) |
| goto opthelp; |
| if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) { |
| BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); |
| goto opthelp; |
| } |
| if (!operation) { |
| BIO_puts(bio_err, |
| "No operation (-encrypt|-sign|...) specified\n"); |
| goto opthelp; |
| } |
| |
| 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 opthelp; |
| } |
| if (signerfile != NULL) { |
| if (sksigners == NULL |
| && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| sk_OPENSSL_STRING_push(sksigners, signerfile); |
| if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) |
| goto end; |
| if (!keyfile) |
| keyfile = signerfile; |
| sk_OPENSSL_STRING_push(skkeys, keyfile); |
| } |
| if (sksigners == NULL) { |
| BIO_printf(bio_err, "No signer certificate specified\n"); |
| goto opthelp; |
| } |
| signerfile = NULL; |
| keyfile = NULL; |
| } else if (operation == SMIME_DECRYPT) { |
| if (recipfile == NULL && keyfile == NULL) { |
| BIO_printf(bio_err, |
| "No recipient certificate or key specified\n"); |
| goto opthelp; |
| } |
| } else if (operation == SMIME_ENCRYPT) { |
| if (argc == 0) { |
| BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); |
| goto opthelp; |
| } |
| } |
| |
| if (!app_passwd(passinarg, NULL, &passin, NULL)) { |
| BIO_printf(bio_err, "Error getting password\n"); |
| goto end; |
| } |
| |
| ret = 2; |
| |
| if (!(operation & SMIME_SIGNERS)) |
| flags &= ~PKCS7_DETACHED; |
| |
| if (!(operation & SMIME_OP)) { |
| if (flags & PKCS7_BINARY) |
| outformat = FORMAT_BINARY; |
| } |
| |
| if (!(operation & SMIME_IP)) { |
| if (flags & PKCS7_BINARY) |
| informat = FORMAT_BINARY; |
| } |
| |
| if (operation == SMIME_ENCRYPT) { |
| if (cipher == NULL) { |
| #ifndef OPENSSL_NO_DES |
| cipher = (EVP_CIPHER *)EVP_des_ede3_cbc(); |
| #else |
| BIO_printf(bio_err, "No cipher selected\n"); |
| goto end; |
| #endif |
| } |
| encerts = sk_X509_new_null(); |
| if (encerts == NULL) |
| goto end; |
| while (*argv != NULL) { |
| cert = load_cert(*argv, FORMAT_UNDEF, |
| "recipient certificate file"); |
| if (cert == NULL) |
| goto end; |
| sk_X509_push(encerts, cert); |
| cert = NULL; |
| argv++; |
| } |
| } |
| |
| if (certfile != NULL) { |
| if (!load_certs(certfile, 0, &other, NULL, "certificates")) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (recipfile != NULL && (operation == SMIME_DECRYPT)) { |
| if ((recip = load_cert(recipfile, FORMAT_UNDEF, |
| "recipient certificate file")) == NULL) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (operation == SMIME_DECRYPT) { |
| if (keyfile == NULL) |
| keyfile = recipfile; |
| } else if (operation == SMIME_SIGN) { |
| if (keyfile == NULL) |
| keyfile = signerfile; |
| } else { |
| keyfile = NULL; |
| } |
| |
| if (keyfile != NULL) { |
| key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
| if (key == NULL) |
| goto end; |
| } |
| |
| in = bio_open_default(infile, 'r', informat); |
| if (in == NULL) |
| goto end; |
| |
| if (operation & SMIME_IP) { |
| PKCS7 *p7_in = NULL; |
| |
| p7 = PKCS7_new_ex(libctx, app_get0_propq()); |
| if (p7 == NULL) { |
| BIO_printf(bio_err, "Error allocating PKCS7 object\n"); |
| goto end; |
| } |
| if (informat == FORMAT_SMIME) { |
| p7_in = SMIME_read_PKCS7_ex(in, &indata, &p7); |
| } else if (informat == FORMAT_PEM) { |
| p7_in = PEM_read_bio_PKCS7(in, &p7, NULL, NULL); |
| } else if (informat == FORMAT_ASN1) { |
| p7_in = d2i_PKCS7_bio(in, &p7); |
| } else { |
| BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); |
| goto end; |
| } |
| |
| if (p7_in == NULL) { |
| BIO_printf(bio_err, "Error reading S/MIME message\n"); |
| goto end; |
| } |
| if (contfile != NULL) { |
| BIO_free(indata); |
| if ((indata = BIO_new_file(contfile, "rb")) == NULL) { |
| BIO_printf(bio_err, "Can't read content file %s\n", contfile); |
| goto end; |
| } |
| } |
| } |
| |
| out = bio_open_default(outfile, 'w', outformat); |
| if (out == NULL) |
| goto end; |
| |
| if (operation == SMIME_VERIFY) { |
| if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath, |
| CAstore, noCAstore)) == NULL) |
| goto end; |
| X509_STORE_set_verify_cb(store, smime_cb); |
| if (vpmtouched) |
| X509_STORE_set1_param(store, vpm); |
| } |
| |
| ret = 3; |
| |
| if (operation == SMIME_ENCRYPT) { |
| if (indef) |
| flags |= PKCS7_STREAM; |
| p7 = PKCS7_encrypt_ex(encerts, in, cipher, flags, libctx, app_get0_propq()); |
| } 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_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq()); |
| if (p7 == NULL) |
| goto end; |
| if (flags & PKCS7_NOCERTS) { |
| for (i = 0; i < sk_X509_num(other); i++) { |
| X509 *x = sk_X509_value(other, i); |
| PKCS7_add_certificate(p7, x); |
| } |
| } |
| } 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(signerfile, FORMAT_UNDEF, "signer certificate"); |
| if (signer == NULL) |
| goto end; |
| key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
| if (key == NULL) |
| 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 == NULL) { |
| 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%s", to, mime_eol); |
| if (from) |
| BIO_printf(out, "From: %s%s", from, mime_eol); |
| if (subject) |
| BIO_printf(out, "Subject: %s%s", subject, mime_eol); |
| if (outformat == FORMAT_SMIME) { |
| if (operation == SMIME_RESIGN) |
| rv = SMIME_write_PKCS7(out, p7, indata, flags); |
| else |
| rv = SMIME_write_PKCS7(out, p7, in, flags); |
| } else if (outformat == FORMAT_PEM) { |
| rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags); |
| } else if (outformat == FORMAT_ASN1) { |
| rv = i2d_PKCS7_bio_stream(out, p7, in, flags); |
| } else { |
| BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); |
| goto end; |
| } |
| if (rv == 0) { |
| BIO_printf(bio_err, "Error writing output\n"); |
| ret = 3; |
| goto end; |
| } |
| } |
| ret = 0; |
| end: |
| if (ret) |
| ERR_print_errors(bio_err); |
| OSSL_STACK_OF_X509_free(encerts); |
| OSSL_STACK_OF_X509_free(other); |
| X509_VERIFY_PARAM_free(vpm); |
| sk_OPENSSL_STRING_free(sksigners); |
| sk_OPENSSL_STRING_free(skkeys); |
| X509_STORE_free(store); |
| X509_free(cert); |
| X509_free(recip); |
| X509_free(signer); |
| EVP_PKEY_free(key); |
| EVP_MD_free(sign_md); |
| EVP_CIPHER_free(cipher); |
| PKCS7_free(p7); |
| release_engine(e); |
| BIO_free(in); |
| BIO_free(indata); |
| BIO_free_all(out); |
| OPENSSL_free(passin); |
| NCONF_free(conf); |
| return ret; |
| } |
| |
| static int save_certs(char *signerfile, STACK_OF(X509) *signers) |
| { |
| int i; |
| BIO *tmp; |
| |
| if (signerfile == NULL) |
| return 1; |
| tmp = BIO_new_file(signerfile, "w"); |
| if (tmp == NULL) |
| 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(ctx); |
| |
| return ok; |
| } |
