Remove NOPROTO definitions and error code comments.
[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 <openssl/buffer.h>
62 #include <openssl/bn.h>
63 #ifndef NO_RSA
64 #include <openssl/rsa.h>
65 #endif
66 #ifndef 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 NO_FP_API
74 int X509_print_fp(FILE *fp, X509 *x)
75         {
76         BIO *b;
77         int ret;
78
79         if ((b=BIO_new(BIO_s_file())) == NULL)
80                 {
81                 X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
82                 return(0);
83                 }
84         BIO_set_fp(b,fp,BIO_NOCLOSE);
85         ret=X509_print(b, x);
86         BIO_free(b);
87         return(ret);
88         }
89 #endif
90
91 int X509_print(BIO *bp, X509 *x)
92         {
93         long l;
94         int ret=0,i,j,n;
95         char *m=NULL,*s;
96         X509_CINF *ci;
97         ASN1_INTEGER *bs;
98         EVP_PKEY *pkey=NULL;
99         const char *neg;
100         X509_EXTENSION *ex;
101         ASN1_STRING *str=NULL;
102
103         ci=x->cert_info;
104         if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
105         if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
106         l=X509_get_version(x);
107         if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
108         if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
109
110         bs=X509_get_serialNumber(x);
111         if (bs->length <= 4)
112                 {
113                 l=ASN1_INTEGER_get(bs);
114                 if (l < 0)
115                         {
116                         l= -l;
117                         neg="-";
118                         }
119                 else
120                         neg="";
121                 if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
122                         goto err;
123                 }
124         else
125                 {
126                 neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
127                 if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
128
129                 for (i=0; i<bs->length; i++)
130                         {
131                         if (BIO_printf(bp,"%02x%c",bs->data[i],
132                                 ((i+1 == bs->length)?'\n':':')) <= 0)
133                                 goto err;
134                         }
135                 }
136
137         i=OBJ_obj2nid(ci->signature->algorithm);
138         if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
139                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
140                 goto err;
141
142         if (BIO_write(bp,"        Issuer: ",16) <= 0) goto err;
143         if (!X509_NAME_print(bp,X509_get_issuer_name(x),16)) goto err;
144         if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
145         if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
146         if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
147         if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
148         if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
149         if (BIO_write(bp,"\n        Subject: ",18) <= 0) goto err;
150         if (!X509_NAME_print(bp,X509_get_subject_name(x),16)) goto err;
151         if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
152                 goto err;
153         i=OBJ_obj2nid(ci->key->algor->algorithm);
154         if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
155                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
156
157         pkey=X509_get_pubkey(x);
158         if (pkey == NULL)
159                 {
160                 BIO_printf(bp,"%12sUnable to load Public Key\n","");
161                 }
162         else
163 #ifndef NO_RSA
164         if (pkey->type == EVP_PKEY_RSA)
165                 {
166                 BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
167                 BN_num_bits(pkey->pkey.rsa->n));
168                 RSA_print(bp,pkey->pkey.rsa,16);
169                 }
170         else
171 #endif
172 #ifndef NO_DSA
173         if (pkey->type == EVP_PKEY_DSA)
174                 {
175                 BIO_printf(bp,"%12sDSA Public Key:\n","");
176                 DSA_print(bp,pkey->pkey.dsa,16);
177                 }
178         else
179 #endif
180                 BIO_printf(bp,"%12sUnknown Public Key:\n","");
181
182         EVP_PKEY_free(pkey);
183
184         n=X509_get_ext_count(x);
185         if (n > 0)
186                 {
187                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
188                 for (i=0; i<n; i++)
189                         {
190 #if 0
191                         int data_type,pack_type;
192 #endif
193                         ASN1_OBJECT *obj;
194
195                         ex=X509_get_ext(x,i);
196                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
197                         obj=X509_EXTENSION_get_object(ex);
198                         i2a_ASN1_OBJECT(bp,obj);
199                         j=X509_EXTENSION_get_critical(ex);
200                         if (BIO_printf(bp,": %s\n",j?"critical":"","") <= 0)
201                                 goto err;
202                         if(!X509V3_EXT_print(bp, ex, 0, 16))
203                                 {
204                                 BIO_printf(bp, "%16s", "");
205                                 ASN1_OCTET_STRING_print(bp,ex->value);
206                                 }
207                         if (BIO_write(bp,"\n",1) <= 0) goto err;
208                         }
209                 }
210
211         i=OBJ_obj2nid(x->sig_alg->algorithm);
212         if (BIO_printf(bp,"%4sSignature Algorithm: %s","",
213                 (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
214
215         n=x->signature->length;
216         s=(char *)x->signature->data;
217         for (i=0; i<n; i++)
218                 {
219                 if ((i%18) == 0)
220                         if (BIO_write(bp,"\n        ",9) <= 0) goto err;
221                 if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
222                         ((i+1) == n)?"":":") <= 0) goto err;
223                 }
224         if (BIO_write(bp,"\n",1) != 1) goto err;
225         ret=1;
226 err:
227         if (str != NULL) ASN1_STRING_free(str);
228         if (m != NULL) Free((char *)m);
229         return(ret);
230         }
231
232 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
233         {
234         int i,n;
235         char buf[80],*p;;
236
237         if (v == NULL) return(0);
238         n=0;
239         p=(char *)v->data;
240         for (i=0; i<v->length; i++)
241                 {
242                 if ((p[i] > '~') || ((p[i] < ' ') &&
243                         (p[i] != '\n') && (p[i] != '\r')))
244                         buf[n]='.';
245                 else
246                         buf[n]=p[i];
247                 n++;
248                 if (n >= 80)
249                         {
250                         if (BIO_write(bp,buf,n) <= 0)
251                                 return(0);
252                         n=0;
253                         }
254                 }
255         if (n > 0)
256                 if (BIO_write(bp,buf,n) <= 0)
257                         return(0);
258         return(1);
259         }
260
261 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
262 {
263         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
264         if(tm->type == V_ASN1_GENERALIZEDTIME)
265                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
266         BIO_write(bp,"Bad time value",14);
267         return(0);
268 }
269
270 static const char *mon[12]=
271     {
272     "Jan","Feb","Mar","Apr","May","Jun",
273     "Jul","Aug","Sep","Oct","Nov","Dec"
274     };
275
276 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
277         {
278         char *v;
279         int gmt=0;
280         int i;
281         int y=0,M=0,d=0,h=0,m=0,s=0;
282
283         i=tm->length;
284         v=(char *)tm->data;
285
286         if (i < 12) goto err;
287         if (v[i-1] == 'Z') gmt=1;
288         for (i=0; i<12; i++)
289                 if ((v[i] > '9') || (v[i] < '0')) goto err;
290         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
291         M= (v[4]-'0')*10+(v[5]-'0');
292         if ((M > 12) || (M < 1)) goto err;
293         d= (v[6]-'0')*10+(v[7]-'0');
294         h= (v[8]-'0')*10+(v[9]-'0');
295         m=  (v[10]-'0')*10+(v[11]-'0');
296         if (    (v[12] >= '0') && (v[12] <= '9') &&
297                 (v[13] >= '0') && (v[13] <= '9'))
298                 s=  (v[12]-'0')*10+(v[13]-'0');
299
300         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
301                 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
302                 return(0);
303         else
304                 return(1);
305 err:
306         BIO_write(bp,"Bad time value",14);
307         return(0);
308         }
309
310 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
311         {
312         char *v;
313         int gmt=0;
314         int i;
315         int y=0,M=0,d=0,h=0,m=0,s=0;
316
317         i=tm->length;
318         v=(char *)tm->data;
319
320         if (i < 10) goto err;
321         if (v[i-1] == 'Z') gmt=1;
322         for (i=0; i<10; i++)
323                 if ((v[i] > '9') || (v[i] < '0')) goto err;
324         y= (v[0]-'0')*10+(v[1]-'0');
325         if (y < 50) y+=100;
326         M= (v[2]-'0')*10+(v[3]-'0');
327         if ((M > 12) || (M < 1)) goto err;
328         d= (v[4]-'0')*10+(v[5]-'0');
329         h= (v[6]-'0')*10+(v[7]-'0');
330         m=  (v[8]-'0')*10+(v[9]-'0');
331         if (    (v[10] >= '0') && (v[10] <= '9') &&
332                 (v[11] >= '0') && (v[11] <= '9'))
333                 s=  (v[10]-'0')*10+(v[11]-'0');
334
335         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
336                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
337                 return(0);
338         else
339                 return(1);
340 err:
341         BIO_write(bp,"Bad time value",14);
342         return(0);
343         }
344
345 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
346         {
347         char *s,*c;
348         int ret=0,l,ll,i,first=1;
349         char buf[256];
350
351         ll=80-2-obase;
352
353         s=X509_NAME_oneline(name,buf,256);
354         s++; /* skip the first slash */
355
356         l=ll;
357         c=s;
358         for (;;)
359                 {
360                 if (    ((*s == '/') &&
361                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
362                                         (s[2] == '=') ||
363                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
364                                         (s[3] == '='))
365                                  ))) ||
366                         (*s == '\0'))
367                         {
368                         if ((l <= 0) && !first)
369                                 {
370                                 first=0;
371                                 if (BIO_write(bp,"\n",1) != 1) goto err;
372                                 for (i=0; i<obase; i++)
373                                         {
374                                         if (BIO_write(bp," ",1) != 1) goto err;
375                                         }
376                                 l=ll;
377                                 }
378                         i=s-c;
379                         if (BIO_write(bp,c,i) != i) goto err;
380                         c+=i;
381                         c++;
382                         if (*s != '\0')
383                                 {
384                                 if (BIO_write(bp,", ",2) != 2) goto err;
385                                 }
386                         l--;
387                         }
388                 if (*s == '\0') break;
389                 s++;
390                 l--;
391                 }
392         
393         ret=1;
394         if (0)
395                 {
396 err:
397                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
398                 }
399         return(ret);
400         }
401