5eb6cf20518f070bf88979e0ce4ad9fdf2e4725b
[openssl.git] / crypto / x509 / by_file.c
1 /* crypto/x509/by_file.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 <time.h>
61 #include <errno.h>
62 #include <sys/types.h>
63 #include <sys/stat.h>
64
65 #include "cryptlib.h"
66 #include <openssl/lhash.h>
67 #include <openssl/buffer.h>
68 #include <openssl/x509.h>
69 #include <openssl/pem.h>
70
71 #ifndef NO_STDIO
72
73 #ifndef NOPROTO
74 static int by_file_ctrl(X509_LOOKUP *ctx,int cmd,char *argc,
75         long argl,char **ret);
76 #else
77 static int by_file_ctrl();
78 #endif
79
80 X509_LOOKUP_METHOD x509_file_lookup=
81         {
82         "Load file into cache",
83         NULL,           /* new */
84         NULL,           /* free */
85         NULL,           /* init */
86         NULL,           /* shutdown */
87         by_file_ctrl,   /* ctrl */
88         NULL,           /* get_by_subject */
89         NULL,           /* get_by_issuer_serial */
90         NULL,           /* get_by_fingerprint */
91         NULL,           /* get_by_alias */
92         };
93
94 X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
95         {
96         return(&x509_file_lookup);
97         }
98
99 static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, char *argp, long argl,
100              char **ret)
101         {
102         int ok=0,ok2=0;
103         char *file;
104
105         switch (cmd)
106                 {
107         case X509_L_FILE_LOAD:
108                 if (argl == X509_FILETYPE_DEFAULT)
109                         {
110                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
111                                 X509_FILETYPE_PEM);
112                         ok2=X509_load_crl_file(ctx,X509_get_default_cert_file(),
113                                 X509_FILETYPE_PEM);
114                         if (!ok || !ok2)
115                                 {
116                                 X509err(X509_F_BY_FILE_CTRL,X509_R_LOADING_DEFAULTS);
117                                 }
118                         else
119                                 {
120                                 file=(char *)Getenv(X509_get_default_cert_file_env());
121                                 ok=X509_load_cert_file(ctx,file,
122                                         X509_FILETYPE_PEM);
123                                 ok2=X509_load_crl_file(ctx,file,
124                                         X509_FILETYPE_PEM);
125                                 }
126                         }
127                 else
128                         {
129                         ok=X509_load_cert_file(ctx,argp,(int)argl);
130                         ok2=X509_load_crl_file(ctx,argp,(int)argl);
131                         }
132                 break;
133                 }
134         return((ok && ok2)?ok:0);
135         }
136
137 int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
138         {
139         int ret=0;
140         BIO *in=NULL;
141         int i,count=0;
142         X509 *x=NULL;
143
144         if (file == NULL) return(1);
145         in=BIO_new(BIO_s_file_internal());
146
147         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
148                 {
149                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
150                 goto err;
151                 }
152
153         if (type == X509_FILETYPE_PEM)
154                 {
155                 for (;;)
156                         {
157                         x=PEM_read_bio_X509(in,NULL,NULL);
158                         if (x == NULL)
159                                 {
160                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
161                                         PEM_R_NO_START_LINE) && (count > 0))
162                                         {
163                                         ERR_clear_error();
164                                         break;
165                                         }
166                                 else
167                                         {
168                                         X509err(X509_F_X509_LOAD_CERT_FILE,
169                                                 ERR_R_PEM_LIB);
170                                         goto err;
171                                         }
172                                 }
173                         i=X509_STORE_add_cert(ctx->store_ctx,x);
174                         if (!i) goto err;
175                         count++;
176                         X509_free(x);
177                         x=NULL;
178                         }
179                 ret=count;
180                 }
181         else if (type == X509_FILETYPE_ASN1)
182                 {
183                 x=d2i_X509_bio(in,NULL);
184                 if (x == NULL)
185                         {
186                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
187                         goto err;
188                         }
189                 i=X509_STORE_add_cert(ctx->store_ctx,x);
190                 if (!i) goto err;
191                 ret=i;
192                 }
193         else
194                 {
195                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
196                 goto err;
197                 }
198 err:
199         if (x != NULL) X509_free(x);
200         if (in != NULL) BIO_free(in);
201         return(ret);
202         }
203
204 int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
205         {
206         int ret=0;
207         BIO *in=NULL;
208         int i,count=0;
209         X509_CRL *x=NULL;
210
211         if (file == NULL) return(1);
212         in=BIO_new(BIO_s_file_internal());
213
214         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
215                 {
216                 X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_SYS_LIB);
217                 goto err;
218                 }
219
220         if (type == X509_FILETYPE_PEM)
221                 {
222                 for (;;)
223                         {
224                         x=PEM_read_bio_X509_CRL(in,NULL,NULL);
225                         if (x == NULL)
226                                 {
227                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
228                                         PEM_R_NO_START_LINE) && (count > 0))
229                                         {
230                                         ERR_clear_error();
231                                         break;
232                                         }
233                                 else
234                                         {
235                                         X509err(X509_F_X509_LOAD_CRL_FILE,
236                                                 ERR_R_PEM_LIB);
237                                         goto err;
238                                         }
239                                 }
240                         i=X509_STORE_add_crl(ctx->store_ctx,x);
241                         if (!i) goto err;
242                         count++;
243                         X509_CRL_free(x);
244                         x=NULL;
245                         }
246                 ret=count;
247                 }
248         else if (type == X509_FILETYPE_ASN1)
249                 {
250                 x=d2i_X509_CRL_bio(in,NULL);
251                 if (x == NULL)
252                         {
253                         X509err(X509_F_X509_LOAD_CRL_FILE,ERR_R_ASN1_LIB);
254                         goto err;
255                         }
256                 i=X509_STORE_add_crl(ctx->store_ctx,x);
257                 if (!i) goto err;
258                 ret=i;
259                 }
260         else
261                 {
262                 X509err(X509_F_X509_LOAD_CRL_FILE,X509_R_BAD_X509_FILETYPE);
263                 goto err;
264                 }
265 err:
266         if (x != NULL) X509_CRL_free(x);
267         if (in != NULL) BIO_free(in);
268         return(ret);
269         }
270
271 #endif /* NO_STDIO */
272