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[openssl.git] / crypto / x509 / by_file.c
1 /* crypto/x509/by_file.c */
2 /* Copyright (C) 1995-1997 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 "lhash.h"
67 #include "buffer.h"
68 #include "x509.h"
69 #include "pem.h"
70
71 #ifndef NOPROTO
72 static int by_file_ctrl(X509_LOOKUP *ctx,int cmd,char *argc,
73         long argl,char **ret);
74 #else
75 static int by_file_ctrl();
76 #endif
77
78 X509_LOOKUP_METHOD x509_file_lookup=
79         {
80         "Load file into cache",
81         NULL,           /* new */
82         NULL,           /* free */
83         NULL,           /* init */
84         NULL,           /* shutdown */
85         by_file_ctrl,   /* ctrl */
86         NULL,           /* get_by_subject */
87         NULL,           /* get_by_issuer_serial */
88         NULL,           /* get_by_fingerprint */
89         NULL,           /* get_by_alias */
90         };
91
92 X509_LOOKUP_METHOD *X509_LOOKUP_file()
93         {
94         return(&x509_file_lookup);
95         }
96
97 static int by_file_ctrl(ctx,cmd,argp,argl,ret)
98 X509_LOOKUP *ctx;
99 int cmd;
100 char *argp;
101 long argl;
102 char **ret;
103         {
104         int ok=0;
105         char *file;
106
107         switch (cmd)
108                 {
109         case X509_L_FILE_LOAD:
110                 if (argl == X509_FILETYPE_DEFAULT)
111                         {
112                         ok=X509_load_cert_file(ctx,X509_get_default_cert_file(),
113                                 X509_FILETYPE_PEM);
114                         if (!ok)
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                                 }
124                         }
125                 else
126                         ok=X509_load_cert_file(ctx,argp,(int)argl);
127                 break;
128                 }
129         return(ok);
130         }
131
132 int X509_load_cert_file(ctx,file,type)
133 X509_LOOKUP *ctx;
134 char *file;
135 int type;
136         {
137         int ret=0;
138         BIO *in=NULL;
139         int i,count=0;
140         X509 *x=NULL;
141
142         if (file == NULL) return(1);
143 #ifndef WIN16
144         in=BIO_new(BIO_s_file());
145 #else
146         in=BIO_new(BIO_s_file_internal_w16());
147 #endif
148
149         if ((in == NULL) || (BIO_read_filename(in,file) <= 0))
150                 {
151                 X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_SYS_LIB);
152                 goto err;
153                 }
154
155         if (type == X509_FILETYPE_PEM)
156                 {
157                 for (;;)
158                         {
159                         x=PEM_read_bio_X509(in,NULL,NULL);
160                         if (x == NULL)
161                                 {
162                                 if ((ERR_GET_REASON(ERR_peek_error()) ==
163                                         PEM_R_NO_START_LINE) && (count > 0))
164                                         {
165                                         ERR_clear_error();
166                                         break;
167                                         }
168                                 else
169                                         {
170                                         X509err(X509_F_X509_LOAD_CERT_FILE,
171                                                 ERR_R_PEM_LIB);
172                                         goto err;
173                                         }
174                                 }
175                         i=X509_STORE_add_cert(ctx->store_ctx,x);
176                         if (!i) goto err;
177                         count++;
178                         X509_free(x);
179                         x=NULL;
180                         }
181                 ret=count;
182                 }
183         else if (type == X509_FILETYPE_ASN1)
184                 {
185                 x=d2i_X509_bio(in,NULL);
186                 if (x == NULL)
187                         {
188                         X509err(X509_F_X509_LOAD_CERT_FILE,ERR_R_ASN1_LIB);
189                         goto err;
190                         }
191                 i=X509_STORE_add_cert(ctx->store_ctx,x);
192                 if (!i) goto err;
193                 ret=i;
194                 }
195         else
196                 {
197                 X509err(X509_F_X509_LOAD_CERT_FILE,X509_R_BAD_X509_FILETYPE);
198                 goto err;
199                 }
200 err:
201         if (x != NULL) X509_free(x);
202         if (in != NULL) BIO_free(in);
203         return(ret);
204         }
205