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#define CERT_STR_SIZE 32768
Tcl_Obj*
Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert) {
Tcl_Obj *certPtr = Tcl_NewListObj(0, NULL);
BIO *bio;
int n;
unsigned long flags;
char subject[BUFSIZ];
char issuer[BUFSIZ];
char serial[BUFSIZ];
char notBefore[BUFSIZ];
char notAfter[BUFSIZ];
char buffer[BUFSIZ];
char certStr[CERT_STR_SIZE], *certStr_p;
int certStr_len, toRead;
unsigned char sha1_hash_binary[SHA_DIGEST_LENGTH];
unsigned char sha256_hash_binary[SHA256_DIGEST_LENGTH];
int nid, pknid, bits, num_of_exts, len;
uint32_t xflags;
STACK_OF(GENERAL_NAME) *san;
certStr[0] = 0;
subject[0] = 0;
issuer[0] = 0;
serial[0] = 0;
notBefore[0] = 0;
notAfter[0] = 0;
if ((bio = BIO_new(BIO_s_mem())) != NULL) {
flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT;
flags &= ~ASN1_STRFLGS_ESC_MSB;
/* Get subject name */
if (X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags) > 0) {
n = BIO_read(bio, subject, min(BIO_pending(bio), BUFSIZ - 1));
subject[max(n, 0)] = 0;
(void)BIO_flush(bio);
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#define CERT_STR_SIZE 32768
Tcl_Obj*
Tls_NewX509Obj(Tcl_Interp *interp, X509 *cert) {
Tcl_Obj *certPtr = Tcl_NewListObj(0, NULL);
BIO *bio;
int nid, pknid, bits, num_of_exts, len;
uint32_t xflags;
char subject[BUFSIZ];
char issuer[BUFSIZ];
char serial[BUFSIZ];
char notBefore[BUFSIZ];
char notAfter[BUFSIZ];
char buffer[BUFSIZ];
char certStr[CERT_STR_SIZE];
unsigned char md[EVP_MAX_MD_SIZE];
STACK_OF(GENERAL_NAME) *san;
certStr[0] = 0;
subject[0] = 0;
issuer[0] = 0;
serial[0] = 0;
notBefore[0] = 0;
notAfter[0] = 0;
if ((bio = BIO_new(BIO_s_mem())) != NULL) {
int n;
unsigned long flags = XN_FLAG_RFC2253 | ASN1_STRFLGS_UTF8_CONVERT;
flags &= ~ASN1_STRFLGS_ESC_MSB;
/* Get subject name */
if (X509_NAME_print_ex(bio, X509_get_subject_name(cert), 0, flags) > 0) {
n = BIO_read(bio, subject, min(BIO_pending(bio), BUFSIZ - 1));
subject[max(n, 0)] = 0;
(void)BIO_flush(bio);
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n = BIO_read(bio, serial, min(BIO_pending(bio), BUFSIZ - 1));
serial[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
/* Get certificate */
if (PEM_write_bio_X509(bio, cert)) {
certStr_p = certStr;
certStr_len = 0;
while (1) {
toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1);
toRead = min(toRead, BUFSIZ);
if (toRead == 0) {
break;
}
dprintf("Reading %i bytes from the certificate...", toRead);
n = BIO_read(bio, certStr_p, toRead);
if (n <= 0) {
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n = BIO_read(bio, serial, min(BIO_pending(bio), BUFSIZ - 1));
serial[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
/* Get certificate */
if (PEM_write_bio_X509(bio, cert)) {
char *certStr_p = certStr;
int certStr_len = 0;
while (1) {
int toRead = min(BIO_pending(bio), CERT_STR_SIZE - certStr_len - 1);
toRead = min(toRead, BUFSIZ);
if (toRead == 0) {
break;
}
dprintf("Reading %i bytes from the certificate...", toRead);
n = BIO_read(bio, certStr_p, toRead);
if (n <= 0) {
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all[max(n, 0)] = 0;
(void)BIO_flush(bio);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("all", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(all, n));
}
/* Get Validity - Not Before */
if (ASN1_TIME_print(bio, X509_get_notBefore(cert))) {
n = BIO_read(bio, notBefore, min(BIO_pending(bio), BUFSIZ - 1));
notBefore[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
/* Get Validity - Not After */
if (ASN1_TIME_print(bio, X509_get_notAfter(cert))) {
n = BIO_read(bio, notAfter, min(BIO_pending(bio), BUFSIZ - 1));
notAfter[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
BIO_free(bio);
}
/* Version */
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("version", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewLongObj(X509_get_version(cert)+1));
/* Signature algorithm */
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("signature", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(OBJ_nid2ln(X509_get_signature_nid(cert)),-1));
/* SHA1 Fingerprint of cert - DER representation */
X509_digest(cert, EVP_sha1(), sha1_hash_binary, &len);
len = String_to_Hex(sha1_hash_binary, len, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("sha1_hash", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
/* SHA256 Fingerprint of cert - DER representation */
X509_digest(cert, EVP_sha256(), sha256_hash_binary, &len);
len = String_to_Hex(sha256_hash_binary, len, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("sha256_hash", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subject", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(subject, -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("issuer", -1));
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all[max(n, 0)] = 0;
(void)BIO_flush(bio);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("all", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(all, n));
}
/* Get Validity - Not Before */
if (ASN1_TIME_print(bio, X509_get0_notBefore(cert))) {
n = BIO_read(bio, notBefore, min(BIO_pending(bio), BUFSIZ - 1));
notBefore[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
/* Get Validity - Not After */
if (ASN1_TIME_print(bio, X509_get0_notAfter(cert))) {
n = BIO_read(bio, notAfter, min(BIO_pending(bio), BUFSIZ - 1));
notAfter[max(n, 0)] = 0;
(void)BIO_flush(bio);
}
BIO_free(bio);
}
/* Version */
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("version", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewLongObj(X509_get_version(cert)+1));
/* Signature algorithm */
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("signature", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(OBJ_nid2ln(X509_get_signature_nid(cert)),-1));
/* SHA1 Fingerprint of cert - DER representation */
X509_digest(cert, EVP_sha1(), md, &len);
len = String_to_Hex(md, len, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("sha1_hash", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
/* SHA256 Fingerprint of cert - DER representation */
X509_digest(cert, EVP_sha256(), md, &len);
len = String_to_Hex(md, len, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("sha256_hash", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subject", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(subject, -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("issuer", -1));
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}
}
sk_GENERAL_NAME_pop_free(san, GENERAL_NAME_free);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectAltName", -1));
Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
}
/* Certificate Alias */
{
unsigned char *bstring;
len = 0;
bstring = X509_alias_get0(cert, &len);
len = String_to_Hex(bstring, len, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
}
/* Get Subject Key id, Authority Key id */
{
ASN1_OCTET_STRING *astring;
/* X509_keyid_get0 */
astring = X509_get0_subject_key_id(cert);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectKeyIdentifier", -1));
if (astring != NULL) {
len = String_to_Hex((char *)ASN1_STRING_get0_data(astring), ASN1_STRING_length(astring), buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewByteArrayObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
astring = X509_get0_authority_key_id(cert);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("authorityKeyIdentifier", -1));
if (astring != NULL) {
len = String_to_Hex((char *)ASN1_STRING_get0_data(astring), ASN1_STRING_length(astring), buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewByteArrayObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
/* const GENERAL_NAMES *X509_get0_authority_issuer(cert);
const ASN1_INTEGER *X509_get0_authority_serial(cert); */
}
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}
}
sk_GENERAL_NAME_pop_free(san, GENERAL_NAME_free);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectAltName", -1));
Tcl_ListObjAppendElement(interp, certPtr, namesPtr);
}
/* Certificate Alias as UTF-8 string */
{
unsigned char *bstring;
len = 0;
bstring = X509_alias_get0(cert, &len);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("alias", -1));
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj((char *)bstring, len));
}
/* Get Subject Key id, Authority Key id */
{
ASN1_OCTET_STRING *astring;
/* X509_keyid_get0 */
astring = X509_get0_subject_key_id(cert);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("subjectKeyIdentifier", -1));
if (astring != NULL) {
len = String_to_Hex((char *)ASN1_STRING_get0_data(astring), ASN1_STRING_length(astring), buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
astring = X509_get0_authority_key_id(cert);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("authorityKeyIdentifier", -1));
if (astring != NULL) {
len = String_to_Hex((char *)ASN1_STRING_get0_data(astring), ASN1_STRING_length(astring), buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
/* const GENERAL_NAMES *X509_get0_authority_issuer(cert);
const ASN1_INTEGER *X509_get0_authority_serial(cert); */
}
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if (sig_nid != NID_undef) {
len = String_to_Hex(sig->data, sig->length, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
}
return certPtr;
}
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if (sig_nid != NID_undef) {
len = String_to_Hex(sig->data, sig->length, buffer, BUFSIZ);
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj(buffer, len));
} else {
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("", -1));
}
}
/* Certificate purposes */
{
Tcl_Obj *purpPtr = Tcl_NewListObj(0, NULL);
for (int j = 0; j < X509_PURPOSE_get_count(); j++) {
X509_PURPOSE *ptmp = X509_PURPOSE_get0(j);
Tcl_Obj *tmpPtr = Tcl_NewListObj(0, NULL);
for (int i = 0; i < 2; i++) {
int idret = X509_check_purpose(cert, X509_PURPOSE_get_id(ptmp), i);
Tcl_ListObjAppendElement(interp, tmpPtr, Tcl_NewStringObj(i ? "CA" : "nonCA", -1));
Tcl_ListObjAppendElement(interp, tmpPtr, Tcl_NewStringObj(idret ? "Yes" : "No", -1));
}
Tcl_ListObjAppendElement(interp, purpPtr, Tcl_NewStringObj(X509_PURPOSE_get0_name(ptmp), -1));
Tcl_ListObjAppendElement(interp, purpPtr, tmpPtr);
}
Tcl_ListObjAppendElement(interp, certPtr, Tcl_NewStringObj("certificatePurpose", -1));
Tcl_ListObjAppendElement(interp, certPtr, purpPtr);
}
return certPtr;
}
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