1/* crypto/asn1/t_x509.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/buffer.h>
62#include <openssl/bn.h>
63#ifndef OPENSSL_NO_RSA
64#include <openssl/rsa.h>
65#endif
66#ifndef OPENSSL_NO_DSA
67#include <openssl/dsa.h>
68#endif
69#include <openssl/objects.h>
70#include <openssl/x509.h>
71#include <openssl/x509v3.h>
72
73#ifndef OPENSSL_NO_FP_API
74int X509_print_fp(FILE *fp, X509 *x)
75	{
76	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
77	}
78
79int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
80        {
81        BIO *b;
82        int ret;
83
84        if ((b=BIO_new(BIO_s_file())) == NULL)
85		{
86		X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
87                return(0);
88		}
89        BIO_set_fp(b,fp,BIO_NOCLOSE);
90        ret=X509_print_ex(b, x, nmflag, cflag);
91        BIO_free(b);
92        return(ret);
93        }
94#endif
95
96int X509_print(BIO *bp, X509 *x)
97{
98	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
99}
100
101int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
102	{
103	long l;
104	int ret=0,i;
105	char *m=NULL,mlch = ' ';
106	int nmindent = 0;
107	X509_CINF *ci;
108	ASN1_INTEGER *bs;
109	EVP_PKEY *pkey=NULL;
110	const char *neg;
111	ASN1_STRING *str=NULL;
112
113	if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
114			mlch = '\n';
115			nmindent = 12;
116	}
117
118	if(nmflags == X509_FLAG_COMPAT)
119		nmindent = 16;
120
121	ci=x->cert_info;
122	if(!(cflag & X509_FLAG_NO_HEADER))
123		{
124		if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
125		if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
126		}
127	if(!(cflag & X509_FLAG_NO_VERSION))
128		{
129		l=X509_get_version(x);
130		if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
131		}
132	if(!(cflag & X509_FLAG_NO_SERIAL))
133		{
134
135		if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
136
137		bs=X509_get_serialNumber(x);
138		if (bs->length <= 4)
139			{
140			l=ASN1_INTEGER_get(bs);
141			if (l < 0)
142				{
143				l= -l;
144				neg="-";
145				}
146			else
147				neg="";
148			if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
149				goto err;
150			}
151		else
152			{
153			neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
154			if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
155
156			for (i=0; i<bs->length; i++)
157				{
158				if (BIO_printf(bp,"%02x%c",bs->data[i],
159					((i+1 == bs->length)?'\n':':')) <= 0)
160					goto err;
161				}
162			}
163
164		}
165
166	if(!(cflag & X509_FLAG_NO_SIGNAME))
167		{
168		if (BIO_printf(bp,"%8sSignature Algorithm: ","") <= 0)
169			goto err;
170		if (i2a_ASN1_OBJECT(bp, ci->signature->algorithm) <= 0)
171			goto err;
172		if (BIO_puts(bp, "\n") <= 0)
173			goto err;
174		}
175
176	if(!(cflag & X509_FLAG_NO_ISSUER))
177		{
178		if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
179		if (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;
180		if (BIO_write(bp,"\n",1) <= 0) goto err;
181		}
182	if(!(cflag & X509_FLAG_NO_VALIDITY))
183		{
184		if (BIO_write(bp,"        Validity\n",17) <= 0) goto err;
185		if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
186		if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
187		if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
188		if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
189		if (BIO_write(bp,"\n",1) <= 0) goto err;
190		}
191	if(!(cflag & X509_FLAG_NO_SUBJECT))
192		{
193		if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
194		if (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;
195		if (BIO_write(bp,"\n",1) <= 0) goto err;
196		}
197	if(!(cflag & X509_FLAG_NO_PUBKEY))
198		{
199		if (BIO_write(bp,"        Subject Public Key Info:\n",33) <= 0)
200			goto err;
201		if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)
202			goto err;
203		if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
204			goto err;
205		if (BIO_puts(bp, "\n") <= 0)
206			goto err;
207
208		pkey=X509_get_pubkey(x);
209		if (pkey == NULL)
210			{
211			BIO_printf(bp,"%12sUnable to load Public Key\n","");
212			ERR_print_errors(bp);
213			}
214		else
215#ifndef OPENSSL_NO_RSA
216		if (pkey->type == EVP_PKEY_RSA)
217			{
218			BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
219			BN_num_bits(pkey->pkey.rsa->n));
220			RSA_print(bp,pkey->pkey.rsa,16);
221			}
222		else
223#endif
224#ifndef OPENSSL_NO_DSA
225		if (pkey->type == EVP_PKEY_DSA)
226			{
227			BIO_printf(bp,"%12sDSA Public Key:\n","");
228			DSA_print(bp,pkey->pkey.dsa,16);
229			}
230		else
231#endif
232			BIO_printf(bp,"%12sUnknown Public Key:\n","");
233
234		EVP_PKEY_free(pkey);
235		}
236
237	if (!(cflag & X509_FLAG_NO_EXTENSIONS))
238		X509V3_extensions_print(bp, "X509v3 extensions",
239					ci->extensions, cflag, 8);
240
241	if(!(cflag & X509_FLAG_NO_SIGDUMP))
242		{
243		if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
244		}
245	if(!(cflag & X509_FLAG_NO_AUX))
246		{
247		if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
248		}
249	ret=1;
250err:
251	if (str != NULL) ASN1_STRING_free(str);
252	if (m != NULL) OPENSSL_free(m);
253	return(ret);
254	}
255
256int X509_ocspid_print (BIO *bp, X509 *x)
257	{
258	unsigned char *der=NULL ;
259	unsigned char *dertmp;
260	int derlen;
261	int i;
262	unsigned char SHA1md[SHA_DIGEST_LENGTH];
263
264	/* display the hash of the subject as it would appear
265	   in OCSP requests */
266	if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
267		goto err;
268	derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
269	if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
270		goto err;
271	i2d_X509_NAME(x->cert_info->subject, &dertmp);
272
273	EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL);
274	for (i=0; i < SHA_DIGEST_LENGTH; i++)
275		{
276		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
277		}
278	OPENSSL_free (der);
279	der=NULL;
280
281	/* display the hash of the public key as it would appear
282	   in OCSP requests */
283	if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
284		goto err;
285
286	EVP_Digest(x->cert_info->key->public_key->data,
287		x->cert_info->key->public_key->length, SHA1md, NULL, EVP_sha1(), NULL);
288	for (i=0; i < SHA_DIGEST_LENGTH; i++)
289		{
290		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
291			goto err;
292		}
293	BIO_printf(bp,"\n");
294
295	return (1);
296err:
297	if (der != NULL) OPENSSL_free(der);
298	return(0);
299	}
300
301int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
302{
303	unsigned char *s;
304	int i, n;
305	if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
306	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
307
308	n=sig->length;
309	s=sig->data;
310	for (i=0; i<n; i++)
311		{
312		if ((i%18) == 0)
313			if (BIO_write(bp,"\n        ",9) <= 0) return 0;
314			if (BIO_printf(bp,"%02x%s",s[i],
315				((i+1) == n)?"":":") <= 0) return 0;
316		}
317	if (BIO_write(bp,"\n",1) != 1) return 0;
318	return 1;
319}
320
321int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
322	{
323	int i,n;
324	char buf[80],*p;;
325
326	if (v == NULL) return(0);
327	n=0;
328	p=(char *)v->data;
329	for (i=0; i<v->length; i++)
330		{
331		if ((p[i] > '~') || ((p[i] < ' ') &&
332			(p[i] != '\n') && (p[i] != '\r')))
333			buf[n]='.';
334		else
335			buf[n]=p[i];
336		n++;
337		if (n >= 80)
338			{
339			if (BIO_write(bp,buf,n) <= 0)
340				return(0);
341			n=0;
342			}
343		}
344	if (n > 0)
345		if (BIO_write(bp,buf,n) <= 0)
346			return(0);
347	return(1);
348	}
349
350int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
351{
352	if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
353	if(tm->type == V_ASN1_GENERALIZEDTIME)
354				return ASN1_GENERALIZEDTIME_print(bp, tm);
355	BIO_write(bp,"Bad time value",14);
356	return(0);
357}
358
359static const char *mon[12]=
360    {
361    "Jan","Feb","Mar","Apr","May","Jun",
362    "Jul","Aug","Sep","Oct","Nov","Dec"
363    };
364
365int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
366	{
367	char *v;
368	int gmt=0;
369	int i;
370	int y=0,M=0,d=0,h=0,m=0,s=0;
371
372	i=tm->length;
373	v=(char *)tm->data;
374
375	if (i < 12) goto err;
376	if (v[i-1] == 'Z') gmt=1;
377	for (i=0; i<12; i++)
378		if ((v[i] > '9') || (v[i] < '0')) goto err;
379	y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
380	M= (v[4]-'0')*10+(v[5]-'0');
381	if ((M > 12) || (M < 1)) goto err;
382	d= (v[6]-'0')*10+(v[7]-'0');
383	h= (v[8]-'0')*10+(v[9]-'0');
384	m=  (v[10]-'0')*10+(v[11]-'0');
385	if (	(v[12] >= '0') && (v[12] <= '9') &&
386		(v[13] >= '0') && (v[13] <= '9'))
387		s=  (v[12]-'0')*10+(v[13]-'0');
388
389	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
390		mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
391		return(0);
392	else
393		return(1);
394err:
395	BIO_write(bp,"Bad time value",14);
396	return(0);
397	}
398
399int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
400	{
401	char *v;
402	int gmt=0;
403	int i;
404	int y=0,M=0,d=0,h=0,m=0,s=0;
405
406	i=tm->length;
407	v=(char *)tm->data;
408
409	if (i < 10) goto err;
410	if (v[i-1] == 'Z') gmt=1;
411	for (i=0; i<10; i++)
412		if ((v[i] > '9') || (v[i] < '0')) goto err;
413	y= (v[0]-'0')*10+(v[1]-'0');
414	if (y < 50) y+=100;
415	M= (v[2]-'0')*10+(v[3]-'0');
416	if ((M > 12) || (M < 1)) goto err;
417	d= (v[4]-'0')*10+(v[5]-'0');
418	h= (v[6]-'0')*10+(v[7]-'0');
419	m=  (v[8]-'0')*10+(v[9]-'0');
420	if (	(v[10] >= '0') && (v[10] <= '9') &&
421		(v[11] >= '0') && (v[11] <= '9'))
422		s=  (v[10]-'0')*10+(v[11]-'0');
423
424	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
425		mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
426		return(0);
427	else
428		return(1);
429err:
430	BIO_write(bp,"Bad time value",14);
431	return(0);
432	}
433
434int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
435	{
436	char *s,*c,*b;
437	int ret=0,l,ll,i,first=1;
438
439	ll=80-2-obase;
440
441	b=s=X509_NAME_oneline(name,NULL,0);
442	if (!*s)
443		{
444		OPENSSL_free(b);
445		return 1;
446		}
447	s++; /* skip the first slash */
448
449	l=ll;
450	c=s;
451	for (;;)
452		{
453#ifndef CHARSET_EBCDIC
454		if (	((*s == '/') &&
455				((s[1] >= 'A') && (s[1] <= 'Z') && (
456					(s[2] == '=') ||
457					((s[2] >= 'A') && (s[2] <= 'Z') &&
458					(s[3] == '='))
459				 ))) ||
460			(*s == '\0'))
461#else
462		if (	((*s == '/') &&
463				(isupper(s[1]) && (
464					(s[2] == '=') ||
465					(isupper(s[2]) &&
466					(s[3] == '='))
467				 ))) ||
468			(*s == '\0'))
469#endif
470			{
471			if ((l <= 0) && !first)
472				{
473				first=0;
474				if (BIO_write(bp,"\n",1) != 1) goto err;
475				for (i=0; i<obase; i++)
476					{
477					if (BIO_write(bp," ",1) != 1) goto err;
478					}
479				l=ll;
480				}
481			i=s-c;
482			if (BIO_write(bp,c,i) != i) goto err;
483			c+=i;
484			c++;
485			if (*s != '\0')
486				{
487				if (BIO_write(bp,", ",2) != 2) goto err;
488				}
489			l--;
490			}
491		if (*s == '\0') break;
492		s++;
493		l--;
494		}
495
496	ret=1;
497	if (0)
498		{
499err:
500		X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
501		}
502	OPENSSL_free(b);
503	return(ret);
504	}
505
506