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715 lines
23 KiB
715 lines
23 KiB
/* apps/enc.c */ |
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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* All rights reserved. |
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* |
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* This package is an SSL implementation written |
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* by Eric Young (eay@cryptsoft.com). |
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* The implementation was written so as to conform with Netscapes SSL. |
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* |
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* This library is free for commercial and non-commercial use as long as |
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* the following conditions are aheared to. The following conditions |
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* apply to all code found in this distribution, be it the RC4, RSA, |
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation |
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* included with this distribution is covered by the same copyright terms |
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* except that the holder is Tim Hudson (tjh@cryptsoft.com). |
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* |
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* Copyright remains Eric Young's, and as such any Copyright notices in |
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* the code are not to be removed. |
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* If this package is used in a product, Eric Young should be given attribution |
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* as the author of the parts of the library used. |
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* This can be in the form of a textual message at program startup or |
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* in documentation (online or textual) provided with the package. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* "This product includes cryptographic software written by |
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* Eric Young (eay@cryptsoft.com)" |
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* The word 'cryptographic' can be left out if the rouines from the library |
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* being used are not cryptographic related :-). |
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* 4. If you include any Windows specific code (or a derivative thereof) from |
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* the apps directory (application code) you must include an acknowledgement: |
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
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* |
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* The licence and distribution terms for any publically available version or |
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* derivative of this code cannot be changed. i.e. this code cannot simply be |
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* copied and put under another distribution licence |
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* [including the GNU Public Licence.] |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "apps.h" |
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#include <openssl/bio.h> |
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#include <openssl/err.h> |
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#include <openssl/evp.h> |
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#include <openssl/objects.h> |
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#include <openssl/x509.h> |
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#include <openssl/rand.h> |
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#include <openssl/pem.h> |
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#ifndef OPENSSL_NO_COMP |
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# include <openssl/comp.h> |
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#endif |
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#include <ctype.h> |
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|
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int set_hex(char *in, unsigned char *out, int size); |
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#undef SIZE |
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#undef BSIZE |
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#undef PROG |
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|
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#define SIZE (512) |
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#define BSIZE (8*1024) |
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#define PROG enc_main |
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|
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static void show_ciphers(const OBJ_NAME *name, void *bio_) |
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{ |
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BIO *bio = bio_; |
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static int n; |
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|
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if (!islower((unsigned char)*name->name)) |
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return; |
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|
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BIO_printf(bio, "-%-25s", name->name); |
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if (++n == 3) { |
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BIO_printf(bio, "\n"); |
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n = 0; |
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} else |
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BIO_printf(bio, " "); |
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} |
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|
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int MAIN(int, char **); |
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|
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int MAIN(int argc, char **argv) |
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{ |
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static const char magic[] = "Salted__"; |
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char mbuf[sizeof magic - 1]; |
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char *strbuf = NULL; |
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unsigned char *buff = NULL, *bufsize = NULL; |
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int bsize = BSIZE, verbose = 0; |
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int ret = 1, inl; |
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int nopad = 0; |
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unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; |
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unsigned char salt[PKCS5_SALT_LEN]; |
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char *str = NULL, *passarg = NULL, *pass = NULL; |
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char *hkey = NULL, *hiv = NULL, *hsalt = NULL; |
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char *md = NULL; |
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int enc = 1, printkey = 0, i, base64 = 0; |
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#ifdef ZLIB |
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int do_zlib = 0; |
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BIO *bzl = NULL; |
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#endif |
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int debug = 0, olb64 = 0, nosalt = 0; |
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const EVP_CIPHER *cipher = NULL, *c; |
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EVP_CIPHER_CTX *ctx = NULL; |
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char *inf = NULL, *outf = NULL; |
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BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = |
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NULL, *wbio = NULL; |
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#define PROG_NAME_SIZE 39 |
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char pname[PROG_NAME_SIZE + 1]; |
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#ifndef OPENSSL_NO_ENGINE |
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char *engine = NULL; |
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#endif |
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const EVP_MD *dgst = NULL; |
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int non_fips_allow = 0; |
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apps_startup(); |
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|
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if (bio_err == NULL) |
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if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
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|
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if (!load_config(bio_err, NULL)) |
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goto end; |
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|
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/* first check the program name */ |
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program_name(argv[0], pname, sizeof pname); |
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if (strcmp(pname, "base64") == 0) |
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base64 = 1; |
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#ifdef ZLIB |
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if (strcmp(pname, "zlib") == 0) |
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do_zlib = 1; |
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#endif |
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|
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cipher = EVP_get_cipherbyname(pname); |
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#ifdef ZLIB |
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if (!do_zlib && !base64 && (cipher == NULL) |
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&& (strcmp(pname, "enc") != 0)) |
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#else |
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if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0)) |
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#endif |
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{ |
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BIO_printf(bio_err, "%s is an unknown cipher\n", pname); |
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goto bad; |
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} |
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argc--; |
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argv++; |
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while (argc >= 1) { |
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if (strcmp(*argv, "-e") == 0) |
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enc = 1; |
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else if (strcmp(*argv, "-in") == 0) { |
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if (--argc < 1) |
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goto bad; |
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inf = *(++argv); |
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} else if (strcmp(*argv, "-out") == 0) { |
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if (--argc < 1) |
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goto bad; |
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outf = *(++argv); |
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} else if (strcmp(*argv, "-pass") == 0) { |
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if (--argc < 1) |
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goto bad; |
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passarg = *(++argv); |
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} |
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#ifndef OPENSSL_NO_ENGINE |
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else if (strcmp(*argv, "-engine") == 0) { |
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if (--argc < 1) |
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goto bad; |
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engine = *(++argv); |
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} |
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#endif |
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else if (strcmp(*argv, "-d") == 0) |
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enc = 0; |
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else if (strcmp(*argv, "-p") == 0) |
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printkey = 1; |
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else if (strcmp(*argv, "-v") == 0) |
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verbose = 1; |
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else if (strcmp(*argv, "-nopad") == 0) |
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nopad = 1; |
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else if (strcmp(*argv, "-salt") == 0) |
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nosalt = 0; |
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else if (strcmp(*argv, "-nosalt") == 0) |
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nosalt = 1; |
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else if (strcmp(*argv, "-debug") == 0) |
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debug = 1; |
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else if (strcmp(*argv, "-P") == 0) |
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printkey = 2; |
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else if (strcmp(*argv, "-A") == 0) |
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olb64 = 1; |
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else if (strcmp(*argv, "-a") == 0) |
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base64 = 1; |
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else if (strcmp(*argv, "-base64") == 0) |
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base64 = 1; |
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#ifdef ZLIB |
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else if (strcmp(*argv, "-z") == 0) |
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do_zlib = 1; |
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#endif |
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else if (strcmp(*argv, "-bufsize") == 0) { |
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if (--argc < 1) |
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goto bad; |
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bufsize = (unsigned char *)*(++argv); |
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} else if (strcmp(*argv, "-k") == 0) { |
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if (--argc < 1) |
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goto bad; |
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str = *(++argv); |
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} else if (strcmp(*argv, "-kfile") == 0) { |
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static char buf[128]; |
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FILE *infile; |
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char *file; |
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|
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if (--argc < 1) |
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goto bad; |
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file = *(++argv); |
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infile = fopen(file, "r"); |
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if (infile == NULL) { |
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BIO_printf(bio_err, "unable to read key from '%s'\n", file); |
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goto bad; |
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} |
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buf[0] = '\0'; |
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if (!fgets(buf, sizeof buf, infile)) { |
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BIO_printf(bio_err, "unable to read key from '%s'\n", file); |
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goto bad; |
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} |
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fclose(infile); |
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i = strlen(buf); |
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if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r'))) |
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buf[--i] = '\0'; |
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if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r'))) |
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buf[--i] = '\0'; |
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if (i < 1) { |
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BIO_printf(bio_err, "zero length password\n"); |
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goto bad; |
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} |
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str = buf; |
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} else if (strcmp(*argv, "-K") == 0) { |
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if (--argc < 1) |
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goto bad; |
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hkey = *(++argv); |
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} else if (strcmp(*argv, "-S") == 0) { |
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if (--argc < 1) |
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goto bad; |
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hsalt = *(++argv); |
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} else if (strcmp(*argv, "-iv") == 0) { |
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if (--argc < 1) |
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goto bad; |
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hiv = *(++argv); |
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} else if (strcmp(*argv, "-md") == 0) { |
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if (--argc < 1) |
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goto bad; |
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md = *(++argv); |
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} else if (strcmp(*argv, "-non-fips-allow") == 0) |
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non_fips_allow = 1; |
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else if ((argv[0][0] == '-') && |
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((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) { |
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cipher = c; |
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} else if (strcmp(*argv, "-none") == 0) |
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cipher = NULL; |
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else { |
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BIO_printf(bio_err, "unknown option '%s'\n", *argv); |
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bad: |
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BIO_printf(bio_err, "options are\n"); |
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BIO_printf(bio_err, "%-14s input file\n", "-in <file>"); |
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BIO_printf(bio_err, "%-14s output file\n", "-out <file>"); |
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BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>"); |
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BIO_printf(bio_err, "%-14s encrypt\n", "-e"); |
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BIO_printf(bio_err, "%-14s decrypt\n", "-d"); |
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BIO_printf(bio_err, |
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"%-14s base64 encode/decode, depending on encryption flag\n", |
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"-a/-base64"); |
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BIO_printf(bio_err, "%-14s passphrase is the next argument\n", |
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"-k"); |
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BIO_printf(bio_err, |
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"%-14s passphrase is the first line of the file argument\n", |
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"-kfile"); |
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BIO_printf(bio_err, |
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"%-14s the next argument is the md to use to create a key\n", |
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"-md"); |
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BIO_printf(bio_err, |
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"%-14s from a passphrase. One of md2, md5, sha or sha1\n", |
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""); |
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BIO_printf(bio_err, "%-14s salt in hex is the next argument\n", |
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"-S"); |
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BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n", |
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"-K/-iv"); |
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BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n", |
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"-[pP]"); |
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BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>"); |
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BIO_printf(bio_err, "%-14s disable standard block padding\n", |
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"-nopad"); |
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#ifndef OPENSSL_NO_ENGINE |
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BIO_printf(bio_err, |
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"%-14s use engine e, possibly a hardware device.\n", |
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"-engine e"); |
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#endif |
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|
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BIO_printf(bio_err, "Cipher Types\n"); |
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OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
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show_ciphers, bio_err); |
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BIO_printf(bio_err, "\n"); |
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|
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goto end; |
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} |
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argc--; |
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argv++; |
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} |
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|
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#ifndef OPENSSL_NO_ENGINE |
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setup_engine(bio_err, engine, 0); |
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#endif |
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|
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if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { |
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BIO_printf(bio_err, |
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"AEAD ciphers not supported by the enc utility\n"); |
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goto end; |
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} |
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|
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if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) { |
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BIO_printf(bio_err, |
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"Ciphers in XTS mode are not supported by the enc utility\n"); |
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goto end; |
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} |
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|
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if (md && (dgst = EVP_get_digestbyname(md)) == NULL) { |
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BIO_printf(bio_err, "%s is an unsupported message digest type\n", md); |
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goto end; |
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} |
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|
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if (dgst == NULL) { |
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dgst = EVP_md5(); |
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} |
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|
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if (bufsize != NULL) { |
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unsigned long n; |
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|
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for (n = 0; *bufsize; bufsize++) { |
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i = *bufsize; |
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if ((i <= '9') && (i >= '0')) |
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n = n * 10 + i - '0'; |
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else if (i == 'k') { |
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n *= 1024; |
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bufsize++; |
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break; |
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} |
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} |
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if (*bufsize != '\0') { |
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BIO_printf(bio_err, "invalid 'bufsize' specified.\n"); |
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goto end; |
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} |
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|
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/* It must be large enough for a base64 encoded line */ |
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if (base64 && n < 80) |
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n = 80; |
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|
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bsize = (int)n; |
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if (verbose) |
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BIO_printf(bio_err, "bufsize=%d\n", bsize); |
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} |
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|
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strbuf = OPENSSL_malloc(SIZE); |
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buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); |
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if ((buff == NULL) || (strbuf == NULL)) { |
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BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n", |
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(long)EVP_ENCODE_LENGTH(bsize)); |
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goto end; |
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} |
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|
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in = BIO_new(BIO_s_file()); |
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out = BIO_new(BIO_s_file()); |
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if ((in == NULL) || (out == NULL)) { |
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ERR_print_errors(bio_err); |
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goto end; |
|
} |
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if (debug) { |
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BIO_set_callback(in, BIO_debug_callback); |
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BIO_set_callback(out, BIO_debug_callback); |
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BIO_set_callback_arg(in, (char *)bio_err); |
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BIO_set_callback_arg(out, (char *)bio_err); |
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} |
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|
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if (inf == NULL) { |
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#ifndef OPENSSL_NO_SETVBUF_IONBF |
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if (bufsize != NULL) |
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setvbuf(stdin, (char *)NULL, _IONBF, 0); |
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#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ |
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BIO_set_fp(in, stdin, BIO_NOCLOSE); |
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} else { |
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if (BIO_read_filename(in, inf) <= 0) { |
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perror(inf); |
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goto end; |
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} |
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} |
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|
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if (!str && passarg) { |
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if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { |
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BIO_printf(bio_err, "Error getting password\n"); |
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goto end; |
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} |
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str = pass; |
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} |
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|
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if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { |
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for (;;) { |
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char buf[200]; |
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|
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BIO_snprintf(buf, sizeof buf, "enter %s %s password:", |
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OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
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(enc) ? "encryption" : "decryption"); |
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strbuf[0] = '\0'; |
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i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc); |
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if (i == 0) { |
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if (strbuf[0] == '\0') { |
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ret = 1; |
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goto end; |
|
} |
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str = strbuf; |
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break; |
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} |
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if (i < 0) { |
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BIO_printf(bio_err, "bad password read\n"); |
|
goto end; |
|
} |
|
} |
|
} |
|
|
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if (outf == NULL) { |
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BIO_set_fp(out, stdout, BIO_NOCLOSE); |
|
#ifndef OPENSSL_NO_SETVBUF_IONBF |
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if (bufsize != NULL) |
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setvbuf(stdout, (char *)NULL, _IONBF, 0); |
|
#endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ |
|
#ifdef OPENSSL_SYS_VMS |
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{ |
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BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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out = BIO_push(tmpbio, out); |
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} |
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#endif |
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} else { |
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if (BIO_write_filename(out, outf) <= 0) { |
|
perror(outf); |
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goto end; |
|
} |
|
} |
|
|
|
rbio = in; |
|
wbio = out; |
|
|
|
#ifdef ZLIB |
|
|
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if (do_zlib) { |
|
if ((bzl = BIO_new(BIO_f_zlib())) == NULL) |
|
goto end; |
|
if (enc) |
|
wbio = BIO_push(bzl, wbio); |
|
else |
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rbio = BIO_push(bzl, rbio); |
|
} |
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#endif |
|
|
|
if (base64) { |
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if ((b64 = BIO_new(BIO_f_base64())) == NULL) |
|
goto end; |
|
if (debug) { |
|
BIO_set_callback(b64, BIO_debug_callback); |
|
BIO_set_callback_arg(b64, (char *)bio_err); |
|
} |
|
if (olb64) |
|
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); |
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if (enc) |
|
wbio = BIO_push(b64, wbio); |
|
else |
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rbio = BIO_push(b64, rbio); |
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} |
|
|
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if (cipher != NULL) { |
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/* |
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* Note that str is NULL if a key was passed on the command line, so |
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* we get no salt in that case. Is this a bug? |
|
*/ |
|
if (str != NULL) { |
|
/* |
|
* Salt handling: if encrypting generate a salt and write to |
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* output BIO. If decrypting read salt from input BIO. |
|
*/ |
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unsigned char *sptr; |
|
if (nosalt) |
|
sptr = NULL; |
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else { |
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if (enc) { |
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if (hsalt) { |
|
if (!set_hex(hsalt, salt, sizeof salt)) { |
|
BIO_printf(bio_err, "invalid hex salt value\n"); |
|
goto end; |
|
} |
|
} else if (RAND_bytes(salt, sizeof salt) <= 0) |
|
goto end; |
|
/* |
|
* If -P option then don't bother writing |
|
*/ |
|
if ((printkey != 2) |
|
&& (BIO_write(wbio, magic, |
|
sizeof magic - 1) != sizeof magic - 1 |
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|| BIO_write(wbio, |
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(char *)salt, |
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sizeof salt) != sizeof salt)) { |
|
BIO_printf(bio_err, "error writing output file\n"); |
|
goto end; |
|
} |
|
} else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf |
|
|| BIO_read(rbio, |
|
(unsigned char *)salt, |
|
sizeof salt) != sizeof salt) { |
|
BIO_printf(bio_err, "error reading input file\n"); |
|
goto end; |
|
} else if (memcmp(mbuf, magic, sizeof magic - 1)) { |
|
BIO_printf(bio_err, "bad magic number\n"); |
|
goto end; |
|
} |
|
|
|
sptr = salt; |
|
} |
|
|
|
EVP_BytesToKey(cipher, dgst, sptr, |
|
(unsigned char *)str, strlen(str), 1, key, iv); |
|
/* |
|
* zero the complete buffer or the string passed from the command |
|
* line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu> |
|
*/ |
|
if (str == strbuf) |
|
OPENSSL_cleanse(str, SIZE); |
|
else |
|
OPENSSL_cleanse(str, strlen(str)); |
|
} |
|
if (hiv != NULL) { |
|
int siz = EVP_CIPHER_iv_length(cipher); |
|
if (siz == 0) { |
|
BIO_printf(bio_err, "warning: iv not use by this cipher\n"); |
|
} else if (!set_hex(hiv, iv, sizeof iv)) { |
|
BIO_printf(bio_err, "invalid hex iv value\n"); |
|
goto end; |
|
} |
|
} |
|
if ((hiv == NULL) && (str == NULL) |
|
&& EVP_CIPHER_iv_length(cipher) != 0) { |
|
/* |
|
* No IV was explicitly set and no IV was generated during |
|
* EVP_BytesToKey. Hence the IV is undefined, making correct |
|
* decryption impossible. |
|
*/ |
|
BIO_printf(bio_err, "iv undefined\n"); |
|
goto end; |
|
} |
|
if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) { |
|
BIO_printf(bio_err, "invalid hex key value\n"); |
|
goto end; |
|
} |
|
|
|
if ((benc = BIO_new(BIO_f_cipher())) == NULL) |
|
goto end; |
|
|
|
/* |
|
* Since we may be changing parameters work on the encryption context |
|
* rather than calling BIO_set_cipher(). |
|
*/ |
|
|
|
BIO_get_cipher_ctx(benc, &ctx); |
|
|
|
if (non_fips_allow) |
|
EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW); |
|
|
|
if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) { |
|
BIO_printf(bio_err, "Error setting cipher %s\n", |
|
EVP_CIPHER_name(cipher)); |
|
ERR_print_errors(bio_err); |
|
goto end; |
|
} |
|
|
|
if (nopad) |
|
EVP_CIPHER_CTX_set_padding(ctx, 0); |
|
|
|
if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) { |
|
BIO_printf(bio_err, "Error setting cipher %s\n", |
|
EVP_CIPHER_name(cipher)); |
|
ERR_print_errors(bio_err); |
|
goto end; |
|
} |
|
|
|
if (debug) { |
|
BIO_set_callback(benc, BIO_debug_callback); |
|
BIO_set_callback_arg(benc, (char *)bio_err); |
|
} |
|
|
|
if (printkey) { |
|
if (!nosalt) { |
|
printf("salt="); |
|
for (i = 0; i < (int)sizeof(salt); i++) |
|
printf("%02X", salt[i]); |
|
printf("\n"); |
|
} |
|
if (cipher->key_len > 0) { |
|
printf("key="); |
|
for (i = 0; i < cipher->key_len; i++) |
|
printf("%02X", key[i]); |
|
printf("\n"); |
|
} |
|
if (cipher->iv_len > 0) { |
|
printf("iv ="); |
|
for (i = 0; i < cipher->iv_len; i++) |
|
printf("%02X", iv[i]); |
|
printf("\n"); |
|
} |
|
if (printkey == 2) { |
|
ret = 0; |
|
goto end; |
|
} |
|
} |
|
} |
|
|
|
/* Only encrypt/decrypt as we write the file */ |
|
if (benc != NULL) |
|
wbio = BIO_push(benc, wbio); |
|
|
|
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; |
|
} |
|
} |
|
if (!BIO_flush(wbio)) { |
|
BIO_printf(bio_err, "bad decrypt\n"); |
|
goto end; |
|
} |
|
|
|
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: |
|
ERR_print_errors(bio_err); |
|
if (strbuf != NULL) |
|
OPENSSL_free(strbuf); |
|
if (buff != NULL) |
|
OPENSSL_free(buff); |
|
if (in != NULL) |
|
BIO_free(in); |
|
if (out != NULL) |
|
BIO_free_all(out); |
|
if (benc != NULL) |
|
BIO_free(benc); |
|
if (b64 != NULL) |
|
BIO_free(b64); |
|
#ifdef ZLIB |
|
if (bzl != NULL) |
|
BIO_free(bzl); |
|
#endif |
|
if (pass) |
|
OPENSSL_free(pass); |
|
apps_shutdown(); |
|
OPENSSL_EXIT(ret); |
|
} |
|
|
|
int set_hex(char *in, unsigned char *out, int size) |
|
{ |
|
int i, n; |
|
unsigned char j; |
|
|
|
n = strlen(in); |
|
if (n > (size * 2)) { |
|
BIO_printf(bio_err, "hex string is too long\n"); |
|
return (0); |
|
} |
|
memset(out, 0, size); |
|
for (i = 0; i < n; i++) { |
|
j = (unsigned char)*in; |
|
*(in++) = '\0'; |
|
if (j == 0) |
|
break; |
|
if ((j >= '0') && (j <= '9')) |
|
j -= '0'; |
|
else if ((j >= 'A') && (j <= 'F')) |
|
j = j - 'A' + 10; |
|
else if ((j >= 'a') && (j <= 'f')) |
|
j = j - 'a' + 10; |
|
else { |
|
BIO_printf(bio_err, "non-hex digit\n"); |
|
return (0); |
|
} |
|
if (i & 1) |
|
out[i / 2] |= j; |
|
else |
|
out[i / 2] = (j << 4); |
|
} |
|
return (1); |
|
}
|
|
|