- 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;
+ 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 */
+ if (RAND_bytes((unsigned char *)bound, 32) <= 0)
+ return 0;
+ 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;