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      1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      2  * All rights reserved.
      3  *
      4  * This package is an SSL implementation written
      5  * by Eric Young (eay (at) cryptsoft.com).
      6  * The implementation was written so as to conform with Netscapes SSL.
      7  *
      8  * This library is free for commercial and non-commercial use as long as
      9  * the following conditions are aheared to.  The following conditions
     10  * apply to all code found in this distribution, be it the RC4, RSA,
     11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     12  * included with this distribution is covered by the same copyright terms
     13  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     14  *
     15  * Copyright remains Eric Young's, and as such any Copyright notices in
     16  * the code are not to be removed.
     17  * If this package is used in a product, Eric Young should be given attribution
     18  * as the author of the parts of the library used.
     19  * This can be in the form of a textual message at program startup or
     20  * in documentation (online or textual) provided with the package.
     21  *
     22  * Redistribution and use in source and binary forms, with or without
     23  * modification, are permitted provided that the following conditions
     24  * are met:
     25  * 1. Redistributions of source code must retain the copyright
     26  *    notice, this list of conditions and the following disclaimer.
     27  * 2. Redistributions in binary form must reproduce the above copyright
     28  *    notice, this list of conditions and the following disclaimer in the
     29  *    documentation and/or other materials provided with the distribution.
     30  * 3. All advertising materials mentioning features or use of this software
     31  *    must display the following acknowledgement:
     32  *    "This product includes cryptographic software written by
     33  *     Eric Young (eay (at) cryptsoft.com)"
     34  *    The word 'cryptographic' can be left out if the rouines from the library
     35  *    being used are not cryptographic related :-).
     36  * 4. If you include any Windows specific code (or a derivative thereof) from
     37  *    the apps directory (application code) you must include an acknowledgement:
     38  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     39  *
     40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     50  * SUCH DAMAGE.
     51  *
     52  * The licence and distribution terms for any publically available version or
     53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     54  * copied and put under another distribution licence
     55  * [including the GNU Public Licence.] */
     56 
     57 #include <openssl/asn1.h>
     58 #include <openssl/bio.h>
     59 #include <openssl/digest.h>
     60 #include <openssl/err.h>
     61 #include <openssl/evp.h>
     62 #include <openssl/mem.h>
     63 #include <openssl/obj.h>
     64 #include <openssl/x509.h>
     65 #include <openssl/x509v3.h>
     66 
     67 #include "../evp/internal.h"
     68 
     69 #ifndef OPENSSL_NO_FP_API
     70 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
     71         {
     72         BIO *b;
     73         int ret;
     74 
     75         if ((b=BIO_new(BIO_s_file())) == NULL)
     76 		{
     77 		OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
     78                 return(0);
     79 		}
     80         BIO_set_fp(b,fp,BIO_NOCLOSE);
     81         ret=X509_print_ex(b, x, nmflag, cflag);
     82         BIO_free(b);
     83         return(ret);
     84         }
     85 
     86 int X509_print_fp(FILE *fp, X509 *x)
     87 	{
     88 	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
     89 	}
     90 #endif
     91 
     92 int X509_print(BIO *bp, X509 *x)
     93 {
     94 	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
     95 }
     96 
     97 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
     98 	{
     99 	long l;
    100 	int ret=0,i;
    101 	char *m=NULL,mlch = ' ';
    102 	int nmindent = 0;
    103 	X509_CINF *ci;
    104 	ASN1_INTEGER *bs;
    105 	EVP_PKEY *pkey=NULL;
    106 	const char *neg;
    107 
    108 	if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
    109 			mlch = '\n';
    110 			nmindent = 12;
    111 	}
    112 
    113 	if(nmflags == X509_FLAG_COMPAT)
    114 		nmindent = 16;
    115 
    116 	ci=x->cert_info;
    117 	if(!(cflag & X509_FLAG_NO_HEADER))
    118 		{
    119 		if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
    120 		if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
    121 		}
    122 	if(!(cflag & X509_FLAG_NO_VERSION))
    123 		{
    124 		l=X509_get_version(x);
    125 		if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
    126 		}
    127 	if(!(cflag & X509_FLAG_NO_SERIAL))
    128 		{
    129 
    130 		if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
    131 
    132 		bs=X509_get_serialNumber(x);
    133 		if (bs->length <= (int)sizeof(long))
    134 			{
    135 			l=ASN1_INTEGER_get(bs);
    136 			if (bs->type == V_ASN1_NEG_INTEGER)
    137 				{
    138 				l= -l;
    139 				neg="-";
    140 				}
    141 			else
    142 				neg="";
    143 			if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
    144 				goto err;
    145 			}
    146 		else
    147 			{
    148 			neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
    149 			if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
    150 
    151 			for (i=0; i<bs->length; i++)
    152 				{
    153 				if (BIO_printf(bp,"%02x%c",bs->data[i],
    154 					((i+1 == bs->length)?'\n':':')) <= 0)
    155 					goto err;
    156 				}
    157 			}
    158 
    159 		}
    160 
    161 	if(!(cflag & X509_FLAG_NO_SIGNAME))
    162 		{
    163 		if (X509_signature_print(bp, ci->signature, NULL) <= 0)
    164 			goto err;
    165 		}
    166 
    167 	if(!(cflag & X509_FLAG_NO_ISSUER))
    168 		{
    169 		if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
    170 		if (X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags) < 0) goto err;
    171 		if (BIO_write(bp,"\n",1) <= 0) goto err;
    172 		}
    173 	if(!(cflag & X509_FLAG_NO_VALIDITY))
    174 		{
    175 		if (BIO_write(bp,"        Validity\n",17) <= 0) goto err;
    176 		if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
    177 		if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
    178 		if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
    179 		if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
    180 		if (BIO_write(bp,"\n",1) <= 0) goto err;
    181 		}
    182 	if(!(cflag & X509_FLAG_NO_SUBJECT))
    183 		{
    184 		if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
    185 		if (X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags) < 0) goto err;
    186 		if (BIO_write(bp,"\n",1) <= 0) goto err;
    187 		}
    188 	if(!(cflag & X509_FLAG_NO_PUBKEY))
    189 		{
    190 		if (BIO_write(bp,"        Subject Public Key Info:\n",33) <= 0)
    191 			goto err;
    192 		if (BIO_printf(bp,"%12sPublic Key Algorithm: ","") <= 0)
    193 			goto err;
    194 		if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
    195 			goto err;
    196 		if (BIO_puts(bp, "\n") <= 0)
    197 			goto err;
    198 
    199 		pkey=X509_get_pubkey(x);
    200 		if (pkey == NULL)
    201 			{
    202 			BIO_printf(bp,"%12sUnable to load Public Key\n","");
    203 			BIO_print_errors(bp);
    204 			}
    205 		else
    206 			{
    207 			EVP_PKEY_print_public(bp, pkey, 16, NULL);
    208 			EVP_PKEY_free(pkey);
    209 			}
    210 		}
    211 
    212 	if(!(cflag & X509_FLAG_NO_IDS))
    213 		{
    214 		if (ci->issuerUID)
    215 			{
    216 			if (BIO_printf(bp,"%8sIssuer Unique ID: ","") <= 0)
    217 				goto err;
    218 			if (!X509_signature_dump(bp, ci->issuerUID, 12))
    219 				goto err;
    220 			}
    221 		if (ci->subjectUID)
    222 			{
    223 			if (BIO_printf(bp,"%8sSubject Unique ID: ","") <= 0)
    224 				goto err;
    225 			if (!X509_signature_dump(bp, ci->subjectUID, 12))
    226 				goto err;
    227 			}
    228 		}
    229 
    230 	if (!(cflag & X509_FLAG_NO_EXTENSIONS))
    231 		X509V3_extensions_print(bp, "X509v3 extensions",
    232 					ci->extensions, cflag, 8);
    233 
    234 	if(!(cflag & X509_FLAG_NO_SIGDUMP))
    235 		{
    236 		if(X509_signature_print(bp, x->sig_alg, x->signature) <= 0) goto err;
    237 		}
    238 	if(!(cflag & X509_FLAG_NO_AUX))
    239 		{
    240 		if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
    241 		}
    242 	ret=1;
    243 err:
    244 	if (m != NULL) OPENSSL_free(m);
    245 	return(ret);
    246 	}
    247 
    248 int X509_ocspid_print (BIO *bp, X509 *x)
    249 	{
    250 	unsigned char *der=NULL ;
    251 	unsigned char *dertmp;
    252 	int derlen;
    253 	int i;
    254 	unsigned char SHA1md[SHA_DIGEST_LENGTH];
    255 
    256 	/* display the hash of the subject as it would appear
    257 	   in OCSP requests */
    258 	if (BIO_printf(bp,"        Subject OCSP hash: ") <= 0)
    259 		goto err;
    260 	derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
    261 	if ((der = dertmp = (unsigned char *)OPENSSL_malloc (derlen)) == NULL)
    262 		goto err;
    263 	i2d_X509_NAME(x->cert_info->subject, &dertmp);
    264 
    265 	if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
    266 		goto err;
    267 	for (i=0; i < SHA_DIGEST_LENGTH; i++)
    268 		{
    269 		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0) goto err;
    270 		}
    271 	OPENSSL_free (der);
    272 	der=NULL;
    273 
    274 	/* display the hash of the public key as it would appear
    275 	   in OCSP requests */
    276 	if (BIO_printf(bp,"\n        Public key OCSP hash: ") <= 0)
    277 		goto err;
    278 
    279 	if (!EVP_Digest(x->cert_info->key->public_key->data,
    280 			x->cert_info->key->public_key->length,
    281 			SHA1md, NULL, EVP_sha1(), NULL))
    282 		goto err;
    283 	for (i=0; i < SHA_DIGEST_LENGTH; i++)
    284 		{
    285 		if (BIO_printf(bp,"%02X",SHA1md[i]) <= 0)
    286 			goto err;
    287 		}
    288 	BIO_printf(bp,"\n");
    289 
    290 	return (1);
    291 err:
    292 	if (der != NULL) OPENSSL_free(der);
    293 	return(0);
    294 	}
    295 
    296 int X509_signature_print(BIO *bp, X509_ALGOR *sigalg, ASN1_STRING *sig)
    297 {
    298 	int sig_nid;
    299 	if (BIO_puts(bp,"    Signature Algorithm: ") <= 0) return 0;
    300 	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0) return 0;
    301 
    302 	sig_nid = OBJ_obj2nid(sigalg->algorithm);
    303 	if (sig_nid != NID_undef)
    304 		{
    305 		int pkey_nid, dig_nid;
    306 		const EVP_PKEY_ASN1_METHOD *ameth;
    307 		if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid))
    308 			{
    309 			ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
    310 			if (ameth && ameth->sig_print)
    311 				return ameth->sig_print(bp, sigalg, sig, 9, 0);
    312 			}
    313 		}
    314 	if (sig)
    315 		return X509_signature_dump(bp, sig, 9);
    316 	else if (BIO_puts(bp, "\n") <= 0)
    317 		return 0;
    318 	return 1;
    319 }
    320 
    321 int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
    322 	{
    323 	int i,n;
    324 	char buf[80];
    325 	const char *p;
    326 
    327 	if (v == NULL) return(0);
    328 	n=0;
    329 	p=(const char *)v->data;
    330 	for (i=0; i<v->length; i++)
    331 		{
    332 		if ((p[i] > '~') || ((p[i] < ' ') &&
    333 			(p[i] != '\n') && (p[i] != '\r')))
    334 			buf[n]='.';
    335 		else
    336 			buf[n]=p[i];
    337 		n++;
    338 		if (n >= 80)
    339 			{
    340 			if (BIO_write(bp,buf,n) <= 0)
    341 				return(0);
    342 			n=0;
    343 			}
    344 		}
    345 	if (n > 0)
    346 		if (BIO_write(bp,buf,n) <= 0)
    347 			return(0);
    348 	return(1);
    349 	}
    350 
    351 int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
    352 {
    353 	if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
    354 	if(tm->type == V_ASN1_GENERALIZEDTIME)
    355 				return ASN1_GENERALIZEDTIME_print(bp, tm);
    356 	BIO_write(bp,"Bad time value",14);
    357 	return(0);
    358 }
    359 
    360 static const char *const mon[12]=
    361     {
    362     "Jan","Feb","Mar","Apr","May","Jun",
    363     "Jul","Aug","Sep","Oct","Nov","Dec"
    364     };
    365 
    366 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
    367 	{
    368 	char *v;
    369 	int gmt=0;
    370 	int i;
    371 	int y=0,M=0,d=0,h=0,m=0,s=0;
    372 	char *f = NULL;
    373 	int f_len = 0;
    374 
    375 	i=tm->length;
    376 	v=(char *)tm->data;
    377 
    378 	if (i < 12) goto err;
    379 	if (v[i-1] == 'Z') gmt=1;
    380 	for (i=0; i<12; i++)
    381 		if ((v[i] > '9') || (v[i] < '0')) goto err;
    382 	y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
    383 	M= (v[4]-'0')*10+(v[5]-'0');
    384 	if ((M > 12) || (M < 1)) goto err;
    385 	d= (v[6]-'0')*10+(v[7]-'0');
    386 	h= (v[8]-'0')*10+(v[9]-'0');
    387 	m=  (v[10]-'0')*10+(v[11]-'0');
    388 	if (tm->length >= 14 &&
    389 	    (v[12] >= '0') && (v[12] <= '9') &&
    390 	    (v[13] >= '0') && (v[13] <= '9'))
    391 		{
    392 		s=  (v[12]-'0')*10+(v[13]-'0');
    393 		/* Check for fractions of seconds. */
    394 		if (tm->length >= 15 && v[14] == '.')
    395 			{
    396 			int l = tm->length;
    397 			f = &v[14];	/* The decimal point. */
    398 			f_len = 1;
    399 			while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
    400 				++f_len;
    401 			}
    402 		}
    403 
    404 	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d%.*s %d%s",
    405 		mon[M-1],d,h,m,s,f_len,f,y,(gmt)?" GMT":"") <= 0)
    406 		return(0);
    407 	else
    408 		return(1);
    409 err:
    410 	BIO_write(bp,"Bad time value",14);
    411 	return(0);
    412 	}
    413 
    414 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
    415 	{
    416 	const char *v;
    417 	int gmt=0;
    418 	int i;
    419 	int y=0,M=0,d=0,h=0,m=0,s=0;
    420 
    421 	i=tm->length;
    422 	v=(const char *)tm->data;
    423 
    424 	if (i < 10) goto err;
    425 	if (v[i-1] == 'Z') gmt=1;
    426 	for (i=0; i<10; i++)
    427 		if ((v[i] > '9') || (v[i] < '0')) goto err;
    428 	y= (v[0]-'0')*10+(v[1]-'0');
    429 	if (y < 50) y+=100;
    430 	M= (v[2]-'0')*10+(v[3]-'0');
    431 	if ((M > 12) || (M < 1)) goto err;
    432 	d= (v[4]-'0')*10+(v[5]-'0');
    433 	h= (v[6]-'0')*10+(v[7]-'0');
    434 	m=  (v[8]-'0')*10+(v[9]-'0');
    435 	if (tm->length >=12 &&
    436 	    (v[10] >= '0') && (v[10] <= '9') &&
    437 	    (v[11] >= '0') && (v[11] <= '9'))
    438 		s=  (v[10]-'0')*10+(v[11]-'0');
    439 
    440 	if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
    441 		mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
    442 		return(0);
    443 	else
    444 		return(1);
    445 err:
    446 	BIO_write(bp,"Bad time value",14);
    447 	return(0);
    448 	}
    449 
    450 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
    451 	{
    452 	char *s,*c,*b;
    453 	int ret=0,l,i;
    454 
    455 	l=80-2-obase;
    456 
    457 	b=X509_NAME_oneline(name,NULL,0);
    458 	if (!b)
    459 		return 0;
    460 	if (!*b)
    461 		{
    462 		OPENSSL_free(b);
    463 		return 1;
    464 		}
    465 	s=b+1; /* skip the first slash */
    466 
    467 	c=s;
    468 	for (;;)
    469 		{
    470 		if (	((*s == '/') &&
    471 				((s[1] >= 'A') && (s[1] <= 'Z') && (
    472 					(s[2] == '=') ||
    473 					((s[2] >= 'A') && (s[2] <= 'Z') &&
    474 					(s[3] == '='))
    475 				 ))) ||
    476 			(*s == '\0'))
    477 			{
    478 			i=s-c;
    479 			if (BIO_write(bp,c,i) != i) goto err;
    480 			c=s+1;	/* skip following slash */
    481 			if (*s != '\0')
    482 				{
    483 				if (BIO_write(bp,", ",2) != 2) goto err;
    484 				}
    485 			l--;
    486 			}
    487 		if (*s == '\0') break;
    488 		s++;
    489 		l--;
    490 		}
    491 
    492 	ret=1;
    493 	if (0)
    494 		{
    495 err:
    496 		OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
    497 		}
    498 	OPENSSL_free(b);
    499 	return(ret);
    500 	}
    501