openssl1.0/demos/b64.c
2019-08-09 10:00:55 +02:00

256 lines
8.1 KiB
C

/* demos/b64.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../apps/apps.h"
#include <openssl/buffer.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#undef SIZE
#undef BSIZE
#undef PROG
#define SIZE (512)
#define BSIZE (8*1024)
#define PROG enc_main
int main(argc, argv)
int argc;
char **argv;
{
char *strbuf = NULL;
unsigned char *buff = NULL, *bufsize = NULL;
int bsize = BSIZE, verbose = 0;
int ret = 1, inl;
char *str = NULL;
char *hkey = NULL, *hiv = NULL;
int enc = 1, printkey = 0, i, base64 = 0;
int debug = 0;
EVP_CIPHER *cipher = NULL, *c;
char *inf = NULL, *outf = NULL;
BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
NULL, *wbio = NULL;
#define PROG_NAME_SIZE 39
apps_startup();
if (bio_err == NULL)
if ((bio_err = BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE);
base64 = 1;
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-e") == 0)
enc = 1;
if (strcmp(*argv, "-in") == 0) {
if (--argc < 1)
goto bad;
inf = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
goto bad;
outf = *(++argv);
} else if (strcmp(*argv, "-d") == 0)
enc = 0;
else if (strcmp(*argv, "-v") == 0)
verbose = 1;
else if (strcmp(*argv, "-debug") == 0)
debug = 1;
else if (strcmp(*argv, "-bufsize") == 0) {
if (--argc < 1)
goto bad;
bufsize = (unsigned char *)*(++argv);
} else {
BIO_printf(bio_err, "unknown option '%s'\n", *argv);
bad:
BIO_printf(bio_err, "options are\n");
BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
BIO_printf(bio_err, "%-14s encode\n", "-e");
BIO_printf(bio_err, "%-14s decode\n", "-d");
BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
goto end;
}
argc--;
argv++;
}
if (bufsize != NULL) {
int i;
unsigned long n;
for (n = 0; *bufsize; bufsize++) {
i = *bufsize;
if ((i <= '9') && (i >= '0'))
n = n * 10 + i - '0';
else if (i == 'k') {
n *= 1024;
bufsize++;
break;
}
}
if (*bufsize != '\0') {
BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
goto end;
}
/* It must be large enough for a base64 encoded line */
if (n < 80)
n = 80;
bsize = (int)n;
if (verbose)
BIO_printf(bio_err, "bufsize=%d\n", bsize);
}
strbuf = OPENSSL_malloc(SIZE);
buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
if ((buff == NULL) || (strbuf == NULL)) {
BIO_printf(bio_err, "OPENSSL_malloc failure\n");
goto end;
}
in = BIO_new(BIO_s_file());
out = BIO_new(BIO_s_file());
if ((in == NULL) || (out == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
if (debug) {
BIO_set_callback(in, BIO_debug_callback);
BIO_set_callback(out, BIO_debug_callback);
BIO_set_callback_arg(in, bio_err);
BIO_set_callback_arg(out, bio_err);
}
if (inf == NULL)
BIO_set_fp(in, stdin, BIO_NOCLOSE);
else {
if (BIO_read_filename(in, inf) <= 0) {
perror(inf);
goto end;
}
}
if (outf == NULL)
BIO_set_fp(out, stdout, BIO_NOCLOSE);
else {
if (BIO_write_filename(out, outf) <= 0) {
perror(outf);
goto end;
}
}
rbio = in;
wbio = out;
if (base64) {
if ((b64 = BIO_new(BIO_f_base64())) == NULL)
goto end;
if (debug) {
BIO_set_callback(b64, BIO_debug_callback);
BIO_set_callback_arg(b64, bio_err);
}
if (enc)
wbio = BIO_push(b64, wbio);
else
rbio = BIO_push(b64, rbio);
}
for (;;) {
inl = BIO_read(rbio, (char *)buff, bsize);
if (inl <= 0)
break;
if (BIO_write(wbio, (char *)buff, inl) != inl) {
BIO_printf(bio_err, "error writing output file\n");
goto end;
}
}
BIO_flush(wbio);
ret = 0;
if (verbose) {
BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
}
end:
if (strbuf != NULL)
OPENSSL_free(strbuf);
if (buff != NULL)
OPENSSL_free(buff);
if (in != NULL)
BIO_free(in);
if (out != NULL)
BIO_free(out);
if (benc != NULL)
BIO_free(benc);
if (b64 != NULL)
BIO_free(b64);
EXIT(ret);
}