/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <ctype.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/digest.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "internal.h"
#ifndef OPENSSL_NO_FP_API
int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
unsigned long cflag)
{
BIO *b;
int ret;
if ((b = BIO_new(BIO_s_file())) == NULL) {
OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
return (0);
}
BIO_set_fp(b, fp, BIO_NOCLOSE);
ret = X509_print_ex(b, x, nmflag, cflag);
BIO_free(b);
return (ret);
}
int X509_print_fp(FILE *fp, X509 *x)
{
return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}
#endif
int X509_print(BIO *bp, X509 *x)
{
return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}
int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
unsigned long cflag)
{
long l;
int ret = 0, i;
char *m = NULL, mlch = ' ';
int nmindent = 0;
X509_CINF *ci;
ASN1_INTEGER *bs;
EVP_PKEY *pkey = NULL;
const char *neg;
if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
mlch = '\n';
nmindent = 12;
}
if (nmflags == X509_FLAG_COMPAT)
nmindent = 16;
ci = x->cert_info;
if (!(cflag & X509_FLAG_NO_HEADER)) {
if (BIO_write(bp, "Certificate:\n", 13) <= 0)
goto err;
if (BIO_write(bp, " Data:\n", 10) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_VERSION)) {
l = X509_get_version(x);
if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", "", l + 1, l) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_SERIAL)) {
if (BIO_write(bp, " Serial Number:", 22) <= 0)
goto err;
bs = X509_get_serialNumber(x);
if (bs->length < (int)sizeof(long)
|| (bs->length == sizeof(long) && (bs->data[0] & 0x80) == 0)) {
l = ASN1_INTEGER_get(bs);
if (bs->type == V_ASN1_NEG_INTEGER) {
l = -l;
neg = "-";
} else
neg = "";
if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
goto err;
} else {
neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
goto err;
for (i = 0; i < bs->length; i++) {
if (BIO_printf(bp, "%02x%c", bs->data[i],
((i + 1 == bs->length) ? '\n' : ':')) <= 0)
goto err;
}
}
}
if (!(cflag & X509_FLAG_NO_SIGNAME)) {
if (X509_signature_print(bp, ci->signature, NULL) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_ISSUER)) {
if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
goto err;
if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
< 0)
goto err;
if (BIO_write(bp, "\n", 1) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_VALIDITY)) {
if (BIO_write(bp, " Validity\n", 17) <= 0)
goto err;
if (BIO_write(bp, " Not Before: ", 24) <= 0)
goto err;
if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))
goto err;
if (BIO_write(bp, "\n Not After : ", 25) <= 0)
goto err;
if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))
goto err;
if (BIO_write(bp, "\n", 1) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_SUBJECT)) {
if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
goto err;
if (X509_NAME_print_ex
(bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
goto err;
if (BIO_write(bp, "\n", 1) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_PUBKEY)) {
if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
goto err;
if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
goto err;
if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
goto err;
if (BIO_puts(bp, "\n") <= 0)
goto err;
pkey = X509_get_pubkey(x);
if (pkey == NULL) {
BIO_printf(bp, "%12sUnable to load Public Key\n", "");
ERR_print_errors(bp);
} else {
EVP_PKEY_print_public(bp, pkey, 16, NULL);
EVP_PKEY_free(pkey);
}
}
if (!(cflag & X509_FLAG_NO_IDS)) {
if (ci->issuerUID) {
if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
goto err;
if (!X509_signature_dump(bp, ci->issuerUID, 12))
goto err;
}
if (ci->subjectUID) {
if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
goto err;
if (!X509_signature_dump(bp, ci->subjectUID, 12))
goto err;
}
}
if (!(cflag & X509_FLAG_NO_EXTENSIONS))
X509V3_extensions_print(bp, "X509v3 extensions",
ci->extensions, cflag, 8);
if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0)
goto err;
}
if (!(cflag & X509_FLAG_NO_AUX)) {
if (!X509_CERT_AUX_print(bp, x->aux, 0))
goto err;
}
ret = 1;
err:
if (m != NULL)
OPENSSL_free(m);
return (ret);
}
int X509_ocspid_print(BIO *bp, X509 *x)
{
unsigned char *der = NULL;
unsigned char *dertmp;
int derlen;
int i;
unsigned char SHA1md[SHA_DIGEST_LENGTH];
/*
* display the hash of the subject as it would appear in OCSP requests
*/
if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
goto err;
derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
if ((der = dertmp = (unsigned char *)OPENSSL_malloc(derlen)) == NULL)
goto err;
i2d_X509_NAME(x->cert_info->subject, &dertmp);
if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
goto err;
for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
goto err;
}
OPENSSL_free(der);
der = NULL;
/*
* display the hash of the public key as it would appear in OCSP requests
*/
if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
goto err;
if (!EVP_Digest(x->cert_info->key->public_key->data,
x->cert_info->key->public_key->length,
SHA1md, NULL, EVP_sha1(), NULL))
goto err;
for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
goto err;
}
BIO_printf(bp, "\n");
return (1);
err:
if (der != NULL)
OPENSSL_free(der);
return (0);
}
int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
const ASN1_STRING *sig)
{
if (BIO_puts(bp, " Signature Algorithm: ") <= 0)
return 0;
if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
return 0;
/* RSA-PSS signatures have parameters to print. */
int sig_nid = OBJ_obj2nid(sigalg->algorithm);
if (sig_nid == NID_rsassaPss &&
!x509_print_rsa_pss_params(bp, sigalg, 9, 0)) {
return 0;
}
if (sig)
return X509_signature_dump(bp, sig, 9);
else if (BIO_puts(bp, "\n") <= 0)
return 0;
return 1;
}
int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
{
int i, n;
char buf[80];
const char *p;
if (v == NULL)
return (0);
n = 0;
p = (const char *)v->data;
for (i = 0; i < v->length; i++) {
if ((p[i] > '~') || ((p[i] < ' ') &&
(p[i] != '\n') && (p[i] != '\r')))
buf[n] = '.';
else
buf[n] = p[i];
n++;
if (n >= 80) {
if (BIO_write(bp, buf, n) <= 0)
return (0);
n = 0;
}
}
if (n > 0)
if (BIO_write(bp, buf, n) <= 0)
return (0);
return (1);
}
int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
{
if (tm->type == V_ASN1_UTCTIME)
return ASN1_UTCTIME_print(bp, tm);
if (tm->type == V_ASN1_GENERALIZEDTIME)
return ASN1_GENERALIZEDTIME_print(bp, tm);
BIO_write(bp, "Bad time value", 14);
return (0);
}
static const char *const mon[12] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
{
char *v;
int gmt = 0;
int i;
int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
char *f = NULL;
int f_len = 0;
i = tm->length;
v = (char *)tm->data;
if (i < 12)
goto err;
if (v[i - 1] == 'Z')
gmt = 1;
for (i = 0; i < 12; i++)
if ((v[i] > '9') || (v[i] < '0'))
goto err;
y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 + (v[2] - '0') * 10 + (v[3] -
'0');
M = (v[4] - '0') * 10 + (v[5] - '0');
if ((M > 12) || (M < 1))
goto err;
d = (v[6] - '0') * 10 + (v[7] - '0');
h = (v[8] - '0') * 10 + (v[9] - '0');
m = (v[10] - '0') * 10 + (v[11] - '0');
if (tm->length >= 14 &&
(v[12] >= '0') && (v[12] <= '9') &&
(v[13] >= '0') && (v[13] <= '9')) {
s = (v[12] - '0') * 10 + (v[13] - '0');
/* Check for fractions of seconds. */
if (tm->length >= 15 && v[14] == '.') {
int l = tm->length;
f = &v[14]; /* The decimal point. */
f_len = 1;
while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
++f_len;
}
}
if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
mon[M - 1], d, h, m, s, f_len, f, y,
(gmt) ? " GMT" : "") <= 0)
return (0);
else
return (1);
err:
BIO_write(bp, "Bad time value", 14);
return (0);
}
// consume_two_digits is a helper function for ASN1_UTCTIME_print. If |*v|,
// assumed to be |*len| bytes long, has two leading digits, updates |*out| with
// their value, updates |v| and |len|, and returns one. Otherwise, returns
// zero.
static int consume_two_digits(int* out, const char **v, int *len) {
if (*len < 2|| !isdigit((*v)[0]) || !isdigit((*v)[1])) {
return 0;
}
*out = ((*v)[0] - '0') * 10 + ((*v)[1] - '0');
*len -= 2;
*v += 2;
return 1;
}
// consume_zulu_timezone is a helper function for ASN1_UTCTIME_print. If |*v|,
// assumed to be |*len| bytes long, starts with "Z" then it updates |*v| and
// |*len| and returns one. Otherwise returns zero.
static int consume_zulu_timezone(const char **v, int *len) {
if (*len == 0 || (*v)[0] != 'Z') {
return 0;
}
*len -= 1;
*v += 1;
return 1;
}
int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) {
const char *v = (const char *)tm->data;
int len = tm->length;
int Y = 0, M = 0, D = 0, h = 0, m = 0, s = 0;
// YYMMDDhhmm are required to be present.
if (!consume_two_digits(&Y, &v, &len) ||
!consume_two_digits(&M, &v, &len) ||
!consume_two_digits(&D, &v, &len) ||
!consume_two_digits(&h, &v, &len) ||
!consume_two_digits(&m, &v, &len)) {
goto err;
}
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, requires seconds
// to be present, but historically this code has forgiven its absence.
consume_two_digits(&s, &v, &len);
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, specifies this
// interpretation of the year.
if (Y < 50) {
Y += 2000;
} else {
Y += 1900;
}
if (M > 12 || M == 0) {
goto err;
}
if (D > 31 || D == 0) {
goto err;
}
if (h > 23 || m > 59 || s > 60) {
goto err;
}
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, requires the "Z"
// to be present, but historically this code has forgiven its absence.
const int is_gmt = consume_zulu_timezone(&v, &len);
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, does not permit
// the specification of timezones using the +hhmm / -hhmm syntax, which is
// the only other thing that might legitimately be found at the end.
if (len) {
goto err;
}
return BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s", mon[M - 1], D, h, m, s, Y,
is_gmt ? " GMT" : "") > 0;
err:
BIO_write(bp, "Bad time value", 14);
return 0;
}
int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
{
char *s, *c, *b;
int ret = 0, l, i;
l = 80 - 2 - obase;
b = X509_NAME_oneline(name, NULL, 0);
if (!b)
return 0;
if (!*b) {
OPENSSL_free(b);
return 1;
}
s = b + 1; /* skip the first slash */
c = s;
for (;;) {
if (((*s == '/') &&
((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') ||
((s[2] >= 'A')
&& (s[2] <= 'Z')
&& (s[3] == '='))
))) || (*s == '\0')) {
i = s - c;
if (BIO_write(bp, c, i) != i)
goto err;
c = s + 1; /* skip following slash */
if (*s != '\0') {
if (BIO_write(bp, ", ", 2) != 2)
goto err;
}
l--;
}
if (*s == '\0')
break;
s++;
l--;
}
ret = 1;
if (0) {
err:
OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
}
OPENSSL_free(b);
return (ret);
}