1 /* demos/b64.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 <stdlib.h>
61 #include <string.h>
62 #include "../apps/apps.h"
63 #include <openssl/buffer.h>
64 #include <openssl/err.h>
65 #include <openssl/evp.h>
66 #include <openssl/objects.h>
67 #include <openssl/x509.h>
68 #include <openssl/pem.h>
69 
70 #undef SIZE
71 #undef BSIZE
72 #undef PROG
73 
74 #define SIZE    (512)
75 #define BSIZE   (8*1024)
76 #define PROG    enc_main
77 
main(argc,argv)78 int main(argc, argv)
79 int argc;
80 char **argv;
81 {
82     char *strbuf = NULL;
83     unsigned char *buff = NULL, *bufsize = NULL;
84     int bsize = BSIZE, verbose = 0;
85     int ret = 1, inl;
86     char *str = NULL;
87     char *hkey = NULL, *hiv = NULL;
88     int enc = 1, printkey = 0, i, base64 = 0;
89     int debug = 0;
90     EVP_CIPHER *cipher = NULL, *c;
91     char *inf = NULL, *outf = NULL;
92     BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
93         NULL, *wbio = NULL;
94 #define PROG_NAME_SIZE  39
95 
96     apps_startup();
97 
98     if (bio_err == NULL)
99         if ((bio_err = BIO_new(BIO_s_file())) != NULL)
100             BIO_set_fp(bio_err, stderr, BIO_NOCLOSE);
101 
102     base64 = 1;
103 
104     argc--;
105     argv++;
106     while (argc >= 1) {
107         if (strcmp(*argv, "-e") == 0)
108             enc = 1;
109         if (strcmp(*argv, "-in") == 0) {
110             if (--argc < 1)
111                 goto bad;
112             inf = *(++argv);
113         } else if (strcmp(*argv, "-out") == 0) {
114             if (--argc < 1)
115                 goto bad;
116             outf = *(++argv);
117         } else if (strcmp(*argv, "-d") == 0)
118             enc = 0;
119         else if (strcmp(*argv, "-v") == 0)
120             verbose = 1;
121         else if (strcmp(*argv, "-debug") == 0)
122             debug = 1;
123         else if (strcmp(*argv, "-bufsize") == 0) {
124             if (--argc < 1)
125                 goto bad;
126             bufsize = (unsigned char *)*(++argv);
127         } else {
128             BIO_printf(bio_err, "unknown option '%s'\n", *argv);
129  bad:
130             BIO_printf(bio_err, "options are\n");
131             BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
132             BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
133             BIO_printf(bio_err, "%-14s encode\n", "-e");
134             BIO_printf(bio_err, "%-14s decode\n", "-d");
135             BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
136 
137             goto end;
138         }
139         argc--;
140         argv++;
141     }
142 
143     if (bufsize != NULL) {
144         int i;
145         unsigned long n;
146 
147         for (n = 0; *bufsize; bufsize++) {
148             i = *bufsize;
149             if ((i <= '9') && (i >= '0'))
150                 n = n * 10 + i - '0';
151             else if (i == 'k') {
152                 n *= 1024;
153                 bufsize++;
154                 break;
155             }
156         }
157         if (*bufsize != '\0') {
158             BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
159             goto end;
160         }
161 
162         /* It must be large enough for a base64 encoded line */
163         if (n < 80)
164             n = 80;
165 
166         bsize = (int)n;
167         if (verbose)
168             BIO_printf(bio_err, "bufsize=%d\n", bsize);
169     }
170 
171     strbuf = OPENSSL_malloc(SIZE);
172     buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
173     if ((buff == NULL) || (strbuf == NULL)) {
174         BIO_printf(bio_err, "OPENSSL_malloc failure\n");
175         goto end;
176     }
177 
178     in = BIO_new(BIO_s_file());
179     out = BIO_new(BIO_s_file());
180     if ((in == NULL) || (out == NULL)) {
181         ERR_print_errors(bio_err);
182         goto end;
183     }
184     if (debug) {
185         BIO_set_callback(in, BIO_debug_callback);
186         BIO_set_callback(out, BIO_debug_callback);
187         BIO_set_callback_arg(in, bio_err);
188         BIO_set_callback_arg(out, bio_err);
189     }
190 
191     if (inf == NULL)
192         BIO_set_fp(in, stdin, BIO_NOCLOSE);
193     else {
194         if (BIO_read_filename(in, inf) <= 0) {
195             perror(inf);
196             goto end;
197         }
198     }
199 
200     if (outf == NULL)
201         BIO_set_fp(out, stdout, BIO_NOCLOSE);
202     else {
203         if (BIO_write_filename(out, outf) <= 0) {
204             perror(outf);
205             goto end;
206         }
207     }
208 
209     rbio = in;
210     wbio = out;
211 
212     if (base64) {
213         if ((b64 = BIO_new(BIO_f_base64())) == NULL)
214             goto end;
215         if (debug) {
216             BIO_set_callback(b64, BIO_debug_callback);
217             BIO_set_callback_arg(b64, bio_err);
218         }
219         if (enc)
220             wbio = BIO_push(b64, wbio);
221         else
222             rbio = BIO_push(b64, rbio);
223     }
224 
225     for (;;) {
226         inl = BIO_read(rbio, (char *)buff, bsize);
227         if (inl <= 0)
228             break;
229         if (BIO_write(wbio, (char *)buff, inl) != inl) {
230             BIO_printf(bio_err, "error writing output file\n");
231             goto end;
232         }
233     }
234     BIO_flush(wbio);
235 
236     ret = 0;
237     if (verbose) {
238         BIO_printf(bio_err, "bytes read   :%8ld\n", BIO_number_read(in));
239         BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
240     }
241  end:
242     if (strbuf != NULL)
243         OPENSSL_free(strbuf);
244     if (buff != NULL)
245         OPENSSL_free(buff);
246     if (in != NULL)
247         BIO_free(in);
248     if (out != NULL)
249         BIO_free(out);
250     if (benc != NULL)
251         BIO_free(benc);
252     if (b64 != NULL)
253         BIO_free(b64);
254     EXIT(ret);
255 }
256