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Fix undefined behaviour when printing the X509 serial
[thirdparty/openssl.git] / crypto / x509 / t_x509.c
CommitLineData
b1322259
RS
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
b1322259
RS
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
d02b48c6
RE
8 */
9
10#include <stdio.h>
b39fc560 11#include "internal/cryptlib.h"
ec577822
BM
12#include <openssl/buffer.h>
13#include <openssl/bn.h>
ec577822
BM
14#include <openssl/objects.h>
15#include <openssl/x509.h>
16#include <openssl/x509v3.h>
5fe736e5 17#include "internal/asn1_int.h"
d02b48c6 18
4b618848 19#ifndef OPENSSL_NO_STDIO
6b691a5c 20int X509_print_fp(FILE *fp, X509 *x)
0f113f3e
MC
21{
22 return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
23}
d0c98589 24
0f113f3e
MC
25int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
26 unsigned long cflag)
27{
28 BIO *b;
29 int ret;
30
31 if ((b = BIO_new(BIO_s_file())) == NULL) {
32 X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
33 return (0);
34 }
35 BIO_set_fp(b, fp, BIO_NOCLOSE);
36 ret = X509_print_ex(b, x, nmflag, cflag);
37 BIO_free(b);
38 return (ret);
39}
d02b48c6
RE
40#endif
41
6b691a5c 42int X509_print(BIO *bp, X509 *x)
d0c98589 43{
0f113f3e 44 return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
d0c98589
DSH
45}
46
0f113f3e
MC
47int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
48 unsigned long cflag)
49{
50 long l;
51 int ret = 0, i;
52 char *m = NULL, mlch = ' ';
53 int nmindent = 0;
0f113f3e
MC
54 ASN1_INTEGER *bs;
55 EVP_PKEY *pkey = NULL;
56 const char *neg;
57
58 if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
59 mlch = '\n';
60 nmindent = 12;
61 }
62
63 if (nmflags == X509_FLAG_COMPAT)
64 nmindent = 16;
65
0f113f3e
MC
66 if (!(cflag & X509_FLAG_NO_HEADER)) {
67 if (BIO_write(bp, "Certificate:\n", 13) <= 0)
68 goto err;
69 if (BIO_write(bp, " Data:\n", 10) <= 0)
70 goto err;
71 }
72 if (!(cflag & X509_FLAG_NO_VERSION)) {
73 l = X509_get_version(x);
676befbe
KR
74 if (l >= 0 && l <= 2) {
75 if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
76 goto err;
77 } else {
78 if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
79 goto err;
80 }
0f113f3e
MC
81 }
82 if (!(cflag & X509_FLAG_NO_SERIAL)) {
83
84 if (BIO_write(bp, " Serial Number:", 22) <= 0)
85 goto err;
86
87 bs = X509_get_serialNumber(x);
88 if (bs->length <= (int)sizeof(long)) {
4336de0c
DSH
89 ERR_set_mark();
90 l = ASN1_INTEGER_get(bs);
91 ERR_pop_to_mark();
92 } else {
93 l = -1;
94 }
95 if (l != -1) {
244d7b28 96 unsigned long ul;
0f113f3e 97 if (bs->type == V_ASN1_NEG_INTEGER) {
244d7b28 98 ul = 0 - (unsigned long)l;
0f113f3e
MC
99 neg = "-";
100 } else
244d7b28 101 ul = l;
0f113f3e 102 neg = "";
244d7b28 103 if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
0f113f3e
MC
104 goto err;
105 } else {
106 neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
107 if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
108 goto err;
109
110 for (i = 0; i < bs->length; i++) {
111 if (BIO_printf(bp, "%02x%c", bs->data[i],
112 ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
113 goto err;
114 }
115 }
116
117 }
118
119 if (!(cflag & X509_FLAG_NO_SIGNAME)) {
8900f3e3 120 const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
699f1635 121 if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
0f113f3e 122 goto err;
0f113f3e
MC
123 }
124
125 if (!(cflag & X509_FLAG_NO_ISSUER)) {
126 if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
127 goto err;
128 if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
129 < 0)
130 goto err;
131 if (BIO_write(bp, "\n", 1) <= 0)
132 goto err;
133 }
134 if (!(cflag & X509_FLAG_NO_VALIDITY)) {
135 if (BIO_write(bp, " Validity\n", 17) <= 0)
136 goto err;
137 if (BIO_write(bp, " Not Before: ", 24) <= 0)
138 goto err;
568ce3a5 139 if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
0f113f3e
MC
140 goto err;
141 if (BIO_write(bp, "\n Not After : ", 25) <= 0)
142 goto err;
568ce3a5 143 if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
0f113f3e
MC
144 goto err;
145 if (BIO_write(bp, "\n", 1) <= 0)
146 goto err;
147 }
148 if (!(cflag & X509_FLAG_NO_SUBJECT)) {
149 if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
150 goto err;
151 if (X509_NAME_print_ex
152 (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
153 goto err;
154 if (BIO_write(bp, "\n", 1) <= 0)
155 goto err;
156 }
157 if (!(cflag & X509_FLAG_NO_PUBKEY)) {
699f1635
DSH
158 X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
159 ASN1_OBJECT *xpoid;
160 X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
0f113f3e
MC
161 if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
162 goto err;
163 if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
164 goto err;
699f1635 165 if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
0f113f3e
MC
166 goto err;
167 if (BIO_puts(bp, "\n") <= 0)
168 goto err;
169
c01ff880 170 pkey = X509_get0_pubkey(x);
0f113f3e
MC
171 if (pkey == NULL) {
172 BIO_printf(bp, "%12sUnable to load Public Key\n", "");
173 ERR_print_errors(bp);
174 } else {
175 EVP_PKEY_print_public(bp, pkey, 16, NULL);
0f113f3e
MC
176 }
177 }
178
179 if (!(cflag & X509_FLAG_NO_IDS)) {
8900f3e3
DSH
180 const ASN1_BIT_STRING *iuid, *suid;
181 X509_get0_uids(x, &iuid, &suid);
699f1635 182 if (iuid != NULL) {
0f113f3e
MC
183 if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
184 goto err;
699f1635 185 if (!X509_signature_dump(bp, iuid, 12))
0f113f3e
MC
186 goto err;
187 }
699f1635 188 if (suid != NULL) {
0f113f3e
MC
189 if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
190 goto err;
699f1635 191 if (!X509_signature_dump(bp, suid, 12))
0f113f3e
MC
192 goto err;
193 }
194 }
195
196 if (!(cflag & X509_FLAG_NO_EXTENSIONS))
197 X509V3_extensions_print(bp, "X509v3 extensions",
699f1635 198 X509_get0_extensions(x), cflag, 8);
0f113f3e
MC
199
200 if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
8adc1cb8
DSH
201 const X509_ALGOR *sig_alg;
202 const ASN1_BIT_STRING *sig;
699f1635
DSH
203 X509_get0_signature(&sig, &sig_alg, x);
204 if (X509_signature_print(bp, sig_alg, sig) <= 0)
0f113f3e
MC
205 goto err;
206 }
207 if (!(cflag & X509_FLAG_NO_AUX)) {
699f1635 208 if (!X509_aux_print(bp, x, 0))
0f113f3e
MC
209 goto err;
210 }
211 ret = 1;
212 err:
b548a1f1 213 OPENSSL_free(m);
0f113f3e
MC
214 return (ret);
215}
216
217int X509_ocspid_print(BIO *bp, X509 *x)
218{
219 unsigned char *der = NULL;
220 unsigned char *dertmp;
221 int derlen;
222 int i;
223 unsigned char SHA1md[SHA_DIGEST_LENGTH];
699f1635
DSH
224 ASN1_BIT_STRING *keybstr;
225 X509_NAME *subj;
0f113f3e
MC
226
227 /*
228 * display the hash of the subject as it would appear in OCSP requests
229 */
230 if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
231 goto err;
699f1635
DSH
232 subj = X509_get_subject_name(x);
233 derlen = i2d_X509_NAME(subj, NULL);
b196e7d9 234 if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
0f113f3e 235 goto err;
699f1635 236 i2d_X509_NAME(subj, &dertmp);
0f113f3e
MC
237
238 if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
239 goto err;
240 for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
241 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
242 goto err;
243 }
244 OPENSSL_free(der);
245 der = NULL;
246
247 /*
248 * display the hash of the public key as it would appear in OCSP requests
249 */
250 if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
251 goto err;
252
699f1635
DSH
253 keybstr = X509_get0_pubkey_bitstr(x);
254
255 if (keybstr == NULL)
256 goto err;
257
17ebf85a
DSH
258 if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
259 ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
260 NULL))
0f113f3e
MC
261 goto err;
262 for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
263 if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
264 goto err;
265 }
266 BIO_printf(bp, "\n");
267
268 return (1);
269 err:
b548a1f1 270 OPENSSL_free(der);
0f113f3e
MC
271 return (0);
272}
eb64730b 273
fa1ba589 274int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
de487514 275{
0f113f3e
MC
276 const unsigned char *s;
277 int i, n;
278
279 n = sig->length;
280 s = sig->data;
281 for (i = 0; i < n; i++) {
282 if ((i % 18) == 0) {
283 if (BIO_write(bp, "\n", 1) <= 0)
284 return 0;
285 if (BIO_indent(bp, indent, indent) <= 0)
286 return 0;
287 }
288 if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
289 return 0;
290 }
291 if (BIO_write(bp, "\n", 1) != 1)
292 return 0;
293
294 return 1;
de487514
DSH
295}
296
5e6089f0
MC
297int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
298 const ASN1_STRING *sig)
fa1ba589 299{
0f113f3e
MC
300 int sig_nid;
301 if (BIO_puts(bp, " Signature Algorithm: ") <= 0)
302 return 0;
303 if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
304 return 0;
305
306 sig_nid = OBJ_obj2nid(sigalg->algorithm);
307 if (sig_nid != NID_undef) {
308 int pkey_nid, dig_nid;
309 const EVP_PKEY_ASN1_METHOD *ameth;
310 if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
311 ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
312 if (ameth && ameth->sig_print)
313 return ameth->sig_print(bp, sigalg, sig, 9, 0);
314 }
315 }
316 if (sig)
317 return X509_signature_dump(bp, sig, 9);
318 else if (BIO_puts(bp, "\n") <= 0)
319 return 0;
320 return 1;
fa1ba589 321}
699f1635
DSH
322
323int X509_aux_print(BIO *out, X509 *x, int indent)
324{
325 char oidstr[80], first;
326 STACK_OF(ASN1_OBJECT) *trust, *reject;
327 const unsigned char *alias, *keyid;
328 int keyidlen;
329 int i;
330 if (X509_trusted(x) == 0)
331 return 1;
332 trust = X509_get0_trust_objects(x);
333 reject = X509_get0_reject_objects(x);
334 if (trust) {
335 first = 1;
336 BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
337 for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
338 if (!first)
339 BIO_puts(out, ", ");
340 else
341 first = 0;
342 OBJ_obj2txt(oidstr, sizeof oidstr,
343 sk_ASN1_OBJECT_value(trust, i), 0);
344 BIO_puts(out, oidstr);
345 }
346 BIO_puts(out, "\n");
347 } else
348 BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
349 if (reject) {
350 first = 1;
351 BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
352 for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
353 if (!first)
354 BIO_puts(out, ", ");
355 else
356 first = 0;
357 OBJ_obj2txt(oidstr, sizeof oidstr,
358 sk_ASN1_OBJECT_value(reject, i), 0);
359 BIO_puts(out, oidstr);
360 }
361 BIO_puts(out, "\n");
362 } else
363 BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
364 alias = X509_alias_get0(x, NULL);
365 if (alias)
366 BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
367 keyid = X509_keyid_get0(x, &keyidlen);
368 if (keyid) {
369 BIO_printf(out, "%*sKey Id: ", indent, "");
370 for (i = 0; i < keyidlen; i++)
371 BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
372 BIO_write(out, "\n", 1);
373 }
374 return 1;
375}