b64.c revision 296465 
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
78int main(argc, argv)
79int argc;
80char **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