9a8c8bf0ca7354c35d1c717226dfd2c038c964b5
[openssl.git] / crypto / asn1 / t_x509.c
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 "buffer.h"
62 #include "bn.h"
63 #ifndef NO_RSA
64 #include "rsa.h"
65 #endif
66 #ifndef NO_DSA
67 #include "dsa.h"
68 #endif
69 #include "objects.h"
70 #include "x509.h"
71
72 #ifndef NO_FP_API
73 int X509_print_fp(fp,x)
74 FILE *fp;
75 X509 *x;
76         {
77         BIO *b;
78         int ret;
79
80         if ((b=BIO_new(BIO_s_file())) == NULL)
81                 {
82                 X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
83                 return(0);
84                 }
85         BIO_set_fp(b,fp,BIO_NOCLOSE);
86         ret=X509_print(b, x);
87         BIO_free(b);
88         return(ret);
89         }
90 #endif
91
92 int X509_print(bp,x)
93 BIO *bp;
94 X509 *x;
95         {
96         long l;
97         int ret=0,i,j,n;
98         char *m=NULL,*s;
99         X509_CINF *ci;
100         ASN1_INTEGER *bs;
101         EVP_PKEY *pkey=NULL;
102         char *neg;
103         X509_EXTENSION *ex;
104         ASN1_STRING *str=NULL;
105
106         ci=x->cert_info;
107         if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
108         if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
109         l=X509_get_version(x);
110         if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
111         if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
112
113         bs=X509_get_serialNumber(x);
114         if (bs->length <= 4)
115                 {
116                 l=ASN1_INTEGER_get(bs);
117                 if (l < 0)
118                         {
119                         l= -l;
120                         neg="-";
121                         }
122                 else
123                         neg="";
124                 if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
125                         goto err;
126                 }
127         else
128                 {
129                 neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
130                 if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
131
132                 for (i=0; i<bs->length; i++)
133                         {
134                         if (BIO_printf(bp,"%02x%c",bs->data[i],
135                                 ((i+1 == bs->length)?'\n':':')) <= 0)
136                                 goto err;
137                         }
138                 }
139
140         i=OBJ_obj2nid(ci->signature->algorithm);
141         if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
142                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
143                 goto err;
144
145         if (BIO_write(bp,"        Issuer: ",16) <= 0) goto err;
146         if (!X509_NAME_print(bp,X509_get_issuer_name(x),16)) goto err;
147         if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
148         if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
149         if (!ASN1_UTCTIME_print(bp,X509_get_notBefore(x))) goto err;
150         if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
151         if (!ASN1_UTCTIME_print(bp,X509_get_notAfter(x))) goto err;
152         if (BIO_write(bp,"\n        Subject: ",18) <= 0) goto err;
153         if (!X509_NAME_print(bp,X509_get_subject_name(x),16)) goto err;
154         if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
155                 goto err;
156         i=OBJ_obj2nid(ci->key->algor->algorithm);
157         if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
158                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
159
160         pkey=X509_get_pubkey(x);
161         if (pkey == NULL)
162                 {
163                 BIO_printf(bp,"%12sUnable to load Public Key\n","");
164                 }
165         else
166 #ifndef NO_RSA
167         if (pkey->type == EVP_PKEY_RSA)
168                 {
169                 BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
170                 BN_num_bits(pkey->pkey.rsa->n));
171                 RSA_print(bp,pkey->pkey.rsa,16);
172                 }
173         else
174 #endif
175 #ifndef NO_DSA
176         if (pkey->type == EVP_PKEY_DSA)
177                 {
178                 BIO_printf(bp,"%12sDSA Public Key:\n","");
179                 DSA_print(bp,pkey->pkey.dsa,16);
180                 }
181         else
182 #endif
183                 BIO_printf(bp,"%12sUnknown Public Key:\n","");
184
185         n=X509_get_ext_count(x);
186         if (n > 0)
187                 {
188                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
189                 for (i=0; i<n; i++)
190                         {
191                         int data_type,pack_type;
192                         ASN1_OBJECT *obj;
193
194                         ex=X509_get_ext(x,i);
195                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
196                         obj=X509_EXTENSION_get_object(ex);
197                         i2a_ASN1_OBJECT(bp,obj);
198                         j=X509_EXTENSION_get_critical(ex);
199                         if (BIO_printf(bp,": %s\n%16s",j?"critical":"","") <= 0)
200                                 goto err;
201
202                         pack_type=X509v3_pack_type_by_OBJ(obj);
203                         data_type=X509v3_data_type_by_OBJ(obj);
204                         
205                         if (pack_type == X509_EXT_PACK_STRING)
206                                 {
207                                 if (X509v3_unpack_string(
208                                         &str,data_type,
209                                         X509_EXTENSION_get_data(ex)) == NULL)
210                                         {
211                                         /* hmm... */
212                                         goto err;
213                                         }
214                                 if (    (data_type == V_ASN1_IA5STRING) ||
215                                         (data_type == V_ASN1_PRINTABLESTRING) ||
216                                         (data_type == V_ASN1_T61STRING))
217                                         {
218                                         if (BIO_write(bp,(char *)str->data,
219                                                         str->length) <= 0)
220                                                 goto err;
221                                         }
222                                 else if (data_type == V_ASN1_BIT_STRING)
223                                         {
224                                         BIO_printf(bp,"0x");
225                                         for (j=0; j<str->length; j++)
226                                                 {
227                                                 BIO_printf(bp,"%02X",
228                                                         str->data[j]);
229                                                 }
230                                         }
231                                 }
232                         else
233                                 {
234                                 ASN1_OCTET_STRING_print(bp,ex->value);
235                                 }
236                         if (BIO_write(bp,"\n",1) <= 0) goto err;
237                         }
238                 }
239
240         i=OBJ_obj2nid(x->sig_alg->algorithm);
241         if (BIO_printf(bp,"%4sSignature Algorithm: %s","",
242                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
243
244         n=x->signature->length;
245         s=(char *)x->signature->data;
246         for (i=0; i<n; i++)
247                 {
248                 if ((i%18) == 0)
249                         if (BIO_write(bp,"\n        ",9) <= 0) goto err;
250                 if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
251                         ((i+1) == n)?"":":") <= 0) goto err;
252                 }
253         if (BIO_write(bp,"\n",1) != 1) goto err;
254         ret=1;
255 err:
256         if (str != NULL) ASN1_STRING_free(str);
257         if (m != NULL) Free((char *)m);
258         return(ret);
259         }
260
261 int ASN1_STRING_print(bp,v)
262 BIO *bp;
263 ASN1_STRING *v;
264         {
265         int i,n;
266         char buf[80],*p;;
267
268         if (v == NULL) return(0);
269         n=0;
270         p=(char *)v->data;
271         for (i=0; i<v->length; i++)
272                 {
273                 if ((p[i] > '~') || ((p[i] < ' ') &&
274                         (p[i] != '\n') && (p[i] != '\r')))
275                         buf[n]='.';
276                 else
277                         buf[n]=p[i];
278                 n++;
279                 if (n >= 80)
280                         {
281                         if (BIO_write(bp,buf,n) <= 0)
282                                 return(0);
283                         n=0;
284                         }
285                 }
286         if (n > 0)
287                 if (BIO_write(bp,buf,n) <= 0)
288                         return(0);
289         return(1);
290         }
291
292 int ASN1_UTCTIME_print(bp,tm)
293 BIO *bp;
294 ASN1_UTCTIME *tm;
295         {
296         char *v;
297         int gmt=0;
298         static char *mon[12]={
299                 "Jan","Feb","Mar","Apr","May","Jun",
300                 "Jul","Aug","Sep","Oct","Nov","Dec"};
301         int i;
302         int y=0,M=0,d=0,h=0,m=0,s=0;
303
304         i=tm->length;
305         v=(char *)tm->data;
306
307         if (i < 10) goto err;
308         if (v[i-1] == 'Z') gmt=1;
309         for (i=0; i<10; i++)
310                 if ((v[i] > '9') || (v[i] < '0')) goto err;
311         y= (v[0]-'0')*10+(v[1]-'0');
312         if (y < 50) y+=100;
313         M= (v[2]-'0')*10+(v[3]-'0');
314         if ((M > 12) || (M < 1)) goto err;
315         d= (v[4]-'0')*10+(v[5]-'0');
316         h= (v[6]-'0')*10+(v[7]-'0');
317         m=  (v[8]-'0')*10+(v[9]-'0');
318         if (    (v[10] >= '0') && (v[10] <= '9') &&
319                 (v[11] >= '0') && (v[11] <= '9'))
320                 s=  (v[10]-'0')*10+(v[11]-'0');
321
322         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
323                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
324                 return(0);
325         else
326                 return(1);
327 err:
328         BIO_write(bp,"Bad time value",14);
329         return(0);
330         }
331
332 int X509_NAME_print(bp,name,obase)
333 BIO *bp;
334 X509_NAME *name;
335 int obase;
336         {
337         char *s,*c;
338         int ret=0,l,ll,i,first=1;
339         char buf[256];
340
341         ll=80-2-obase;
342
343         s=X509_NAME_oneline(name,buf,256);
344         s++; /* skip the first slash */
345
346         l=ll;
347         c=s;
348         for (;;)
349                 {
350                 if (    ((*s == '/') &&
351                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
352                                         (s[2] == '=') ||
353                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
354                                         (s[3] == '='))
355                                  ))) ||
356                         (*s == '\0'))
357                         {
358                         if ((l <= 0) && !first)
359                                 {
360                                 first=0;
361                                 if (BIO_write(bp,"\n",1) != 1) goto err;
362                                 for (i=0; i<obase; i++)
363                                         {
364                                         if (BIO_write(bp," ",1) != 1) goto err;
365                                         }
366                                 l=ll;
367                                 }
368                         i=s-c;
369                         if (BIO_write(bp,c,i) != i) goto err;
370                         c+=i;
371                         c++;
372                         if (*s != '\0')
373                                 {
374                                 if (BIO_write(bp,", ",2) != 2) goto err;
375                                 }
376                         l--;
377                         }
378                 if (*s == '\0') break;
379                 s++;
380                 l--;
381                 }
382         
383         ret=1;
384         if (0)
385                 {
386 err:
387                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
388                 }
389         return(ret);
390         }
391