[thirdparty/openssl.git] / apps / enc.c

/* apps/enc.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.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/rand.h>
#include <openssl/pem.h>
#include <openssl/comp.h>
#include <ctype.h>

int set_hex(char *in,unsigned char *out,int size);
#undef SIZE
#undef BSIZE
#undef PROG

#define SIZE	(512)
#define BSIZE	(8*1024)
#define	PROG	enc_main

static void show_ciphers(const OBJ_NAME *name,void *bio_)
	{
	BIO *bio=bio_;
	static int n;

	if(!islower((unsigned char)*name->name))
		return;

	BIO_printf(bio,"-%-25s",name->name);
	if(++n == 3)
		{
		BIO_printf(bio,"\n");
		n=0;
		}
	else
		BIO_printf(bio," ");
	}

int MAIN(int, char **);

int MAIN(int argc, char **argv)
	{
#ifndef OPENSSL_NO_ENGINE
	ENGINE *e = NULL;
#endif
	static const char magic[]="Salted__";
	char mbuf[sizeof magic-1];
	char *strbuf=NULL;
	unsigned char *buff=NULL,*bufsize=NULL;
	int bsize=BSIZE,verbose=0;
	int ret=1,inl;
	int nopad = 0;
	unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH];
	unsigned char salt[PKCS5_SALT_LEN];
	char *str=NULL, *passarg = NULL, *pass = NULL;
	char *hkey=NULL,*hiv=NULL,*hsalt = NULL;
	char *md=NULL;
	int enc=1,printkey=0,i,base64=0;
#ifdef ZLIB
	int do_zlib=0;
	BIO *bzl = NULL;
#endif
	int debug=0,olb64=0,nosalt=0;
	const EVP_CIPHER *cipher=NULL,*c;
	EVP_CIPHER_CTX *ctx = NULL;
	char *inf=NULL,*outf=NULL;
	BIO *in=NULL,*out=NULL,*b64=NULL,*benc=NULL,*rbio=NULL,*wbio=NULL;
#define PROG_NAME_SIZE  39
	char pname[PROG_NAME_SIZE+1];
#ifndef OPENSSL_NO_ENGINE
	char *engine = NULL;
#endif
	const EVP_MD *dgst=NULL;

	apps_startup();

	if (bio_err == NULL)
		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

	if (!load_config(bio_err, NULL))
		goto end;

	/* first check the program name */
	program_name(argv[0],pname,sizeof pname);
	if (strcmp(pname,"base64") == 0)
		base64=1;
#ifdef ZLIB
	if (strcmp(pname,"zlib") == 0)
		do_zlib=1;
#endif

	cipher=EVP_get_cipherbyname(pname);
#ifdef ZLIB
	if (!do_zlib && !base64 && (cipher == NULL)
				&& (strcmp(pname,"enc") != 0))
#else
	if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
#endif
		{
		BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
		goto bad;
		}

	argc--;
	argv++;
	while (argc >= 1)
		{
		if	(strcmp(*argv,"-e") == 0)
			enc=1;
		else 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,"-pass") == 0)
			{
			if (--argc < 1) goto bad;
			passarg= *(++argv);
			}
#ifndef OPENSSL_NO_ENGINE
		else if (strcmp(*argv,"-engine") == 0)
			{
			if (--argc < 1) goto bad;
			engine= *(++argv);
			}
#endif
		else if	(strcmp(*argv,"-d") == 0)
			enc=0;
		else if	(strcmp(*argv,"-p") == 0)
			printkey=1;
		else if	(strcmp(*argv,"-v") == 0)
			verbose=1;
		else if	(strcmp(*argv,"-nopad") == 0)
			nopad=1;
		else if	(strcmp(*argv,"-salt") == 0)
			nosalt=0;
		else if	(strcmp(*argv,"-nosalt") == 0)
			nosalt=1;
		else if	(strcmp(*argv,"-debug") == 0)
			debug=1;
		else if	(strcmp(*argv,"-P") == 0)
			printkey=2;
		else if	(strcmp(*argv,"-A") == 0)
			olb64=1;
		else if	(strcmp(*argv,"-a") == 0)
			base64=1;
		else if	(strcmp(*argv,"-base64") == 0)
			base64=1;
#ifdef ZLIB
		else if	(strcmp(*argv,"-z") == 0)
			do_zlib=1;
#endif
		else if (strcmp(*argv,"-bufsize") == 0)
			{
			if (--argc < 1) goto bad;
			bufsize=(unsigned char *)*(++argv);
			}
		else if (strcmp(*argv,"-k") == 0)
			{
			if (--argc < 1) goto bad;
			str= *(++argv);
			}
		else if (strcmp(*argv,"-kfile") == 0)
			{
			static char buf[128];
			FILE *infile;
			char *file;

			if (--argc < 1) goto bad;
			file= *(++argv);
			infile=fopen(file,"r");
			if (infile == NULL)
				{
				BIO_printf(bio_err,"unable to read key from '%s'\n",
					file);
				goto bad;
				}
			buf[0]='\0';
			fgets(buf,sizeof buf,infile);
			fclose(infile);
			i=strlen(buf);
			if ((i > 0) &&
				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
				buf[--i]='\0';
			if ((i > 0) &&
				((buf[i-1] == '\n') || (buf[i-1] == '\r')))
				buf[--i]='\0';
			if (i < 1)
				{
				BIO_printf(bio_err,"zero length password\n");
				goto bad;
				}
			str=buf;
			}
		else if (strcmp(*argv,"-K") == 0)
			{
			if (--argc < 1) goto bad;
			hkey= *(++argv);
			}
		else if (strcmp(*argv,"-S") == 0)
			{
			if (--argc < 1) goto bad;
			hsalt= *(++argv);
			}
		else if (strcmp(*argv,"-iv") == 0)
			{
			if (--argc < 1) goto bad;
			hiv= *(++argv);
			}
		else if (strcmp(*argv,"-md") == 0)
			{
			if (--argc < 1) goto bad;
			md= *(++argv);
			}
		else if	((argv[0][0] == '-') &&
			((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
			{
			cipher=c;
			}
		else if (strcmp(*argv,"-none") == 0)
			cipher=NULL;
		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 pass phrase source\n","-pass <arg>");
			BIO_printf(bio_err,"%-14s encrypt\n","-e");
			BIO_printf(bio_err,"%-14s decrypt\n","-d");
			BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
			BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k");
			BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");
			BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");
			BIO_printf(bio_err,"%-14s   from a passphrase.  One of md2, md5, sha or sha1\n","");
			BIO_printf(bio_err,"%-14s salt in hex is the next argument\n","-S");
			BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
			BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
			BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
			BIO_printf(bio_err,"%-14s disable standard block padding\n","-nopad");
#ifndef OPENSSL_NO_ENGINE
			BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
#endif

			BIO_printf(bio_err,"Cipher Types\n");
			OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
					       show_ciphers,
					       bio_err);
			BIO_printf(bio_err,"\n");

			goto end;
			}
		argc--;
		argv++;
		}

#ifndef OPENSSL_NO_ENGINE
        e = setup_engine(bio_err, engine, 0);
#endif

	if (md && (dgst=EVP_get_digestbyname(md)) == NULL)
		{
		BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
		goto end;
		}

	if (dgst == NULL)
		{
		dgst = EVP_md5();
		}

	if (bufsize != NULL)
		{
		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 (base64 && 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 %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
		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,(char *)bio_err);
		BIO_set_callback_arg(out,(char *)bio_err);
		}

	if (inf == NULL)
	        {
		if (bufsize != NULL)
			setvbuf(stdin, (char *)NULL, _IONBF, 0);
		BIO_set_fp(in,stdin,BIO_NOCLOSE);
	        }
	else
		{
		if (BIO_read_filename(in,inf) <= 0)
			{
			perror(inf);
			goto end;
			}
		}

	if(!str && passarg) {
		if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
			BIO_printf(bio_err, "Error getting password\n");
			goto end;
		}
		str = pass;
	}

	if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
		{
		for (;;)
			{
			char buf[200];

			BIO_snprintf(buf,sizeof buf,"enter %s %s password:",
				     OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
				     (enc)?"encryption":"decryption");
			strbuf[0]='\0';
			i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
			if (i == 0)
				{
				if (strbuf[0] == '\0')
					{
					ret=1;
					goto end;
					}
				str=strbuf;
				break;
				}
			if (i < 0)
				{
				BIO_printf(bio_err,"bad password read\n");
				goto end;
				}
			}
		}


	if (outf == NULL)
		{
		BIO_set_fp(out,stdout,BIO_NOCLOSE);
		if (bufsize != NULL)
			setvbuf(stdout, (char *)NULL, _IONBF, 0);
#ifdef OPENSSL_SYS_VMS
		{
		BIO *tmpbio = BIO_new(BIO_f_linebuffer());
		out = BIO_push(tmpbio, out);
		}
#endif
		}
	else
		{
		if (BIO_write_filename(out,outf) <= 0)
			{
			perror(outf);
			goto end;
			}
		}

	rbio=in;
	wbio=out;

#ifdef ZLIB

	if (do_zlib)
		{
		if ((bzl=BIO_new(BIO_f_zlib())) == NULL)
			goto end;
		if (enc)
			wbio=BIO_push(bzl,wbio);
		else
			rbio=BIO_push(bzl,rbio);
		}
#endif

	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,(char *)bio_err);
			}
		if (olb64)
			BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
		if (enc)
			wbio=BIO_push(b64,wbio);
		else
			rbio=BIO_push(b64,rbio);
		}

	if (cipher != NULL)
		{
		/* Note that str is NULL if a key was passed on the command
		 * line, so we get no salt in that case. Is this a bug?
		 */
		if (str != NULL)
			{
			/* Salt handling: if encrypting generate a salt and
			 * write to output BIO. If decrypting read salt from
			 * input BIO.
			 */
			unsigned char *sptr;
			if(nosalt) sptr = NULL;
			else {
				if(enc) {
					if(hsalt) {
						if(!set_hex(hsalt,salt,sizeof salt)) {
							BIO_printf(bio_err,
								"invalid hex salt value\n");
							goto end;
						}
					} else if (RAND_pseudo_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
					       || BIO_write(wbio,
							    (char *)salt,
							    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) && !set_hex(hiv,iv,sizeof iv))
			{
			BIO_printf(bio_err,"invalid hex iv value\n");
			goto end;
			}
		if ((hiv == NULL) && (str == NULL))
			{
			/* 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,sizeof key))
			{
			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 (!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);
	}
Commit	Line	Data
d02b48c6	1	/* apps/enc.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	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.h"
ec577822 BM	63	#include <openssl/bio.h>
	64	#include <openssl/err.h>
	65	#include <openssl/evp.h>
	66	#include <openssl/objects.h>
	67	#include <openssl/x509.h>
fd699ac5	68	#include <openssl/rand.h>
ec577822	69	#include <openssl/pem.h>
8931b30d	70	#include <openssl/comp.h>
646d5695	71	#include <ctype.h>
d02b48c6	72
d02b48c6	73	int set_hex(char in,unsigned char out,int size);
d02b48c6 RE	74	#undef SIZE
	75	#undef BSIZE
	76	#undef PROG
	77
	78	#define SIZE (512)
	79	#define BSIZE (8*1024)
	80	#define PROG enc_main
	81
40889b9c	82	static void show_ciphers(const OBJ_NAME name,void bio_)
646d5695 BL	83	{
	84	BIO *bio=bio_;
	85	static int n;
	86
a87e50a9	87	if(!islower((unsigned char)*name->name))
646d5695 BL	88	return;
	89
	90	BIO_printf(bio,"-%-25s",name->name);
	91	if(++n == 3)
	92	{
	93	BIO_printf(bio,"\n");
	94	n=0;
	95	}
	96	else
	97	BIO_printf(bio," ");
	98	}
	99
667ac4ec RE	100	int MAIN(int, char **);
667ac4ec RE	101
6b691a5c	102	int MAIN(int argc, char **argv)
d02b48c6	103	{
0b13e9f0	104	#ifndef OPENSSL_NO_ENGINE
5270e702	105	ENGINE *e = NULL;
0b13e9f0	106	#endif
fea9afbf	107	static const char magic[]="Salted__";
54a656ef	108	char mbuf[sizeof magic-1];
d02b48c6 RE	109	char *strbuf=NULL;
	110	unsigned char buff=NULL,bufsize=NULL;
	111	int bsize=BSIZE,verbose=0;
	112	int ret=1,inl;
f2e5ca84	113	int nopad = 0;
757e392d	114	unsigned char key[EVP_MAX_KEY_LENGTH],iv[EVP_MAX_IV_LENGTH];
fd699ac5	115	unsigned char salt[PKCS5_SALT_LEN];
cd3c54e5	116	char str=NULL, passarg = NULL, *pass = NULL;
fd699ac5	117	char hkey=NULL,hiv=NULL,*hsalt = NULL;
14a948e6	118	char *md=NULL;
d02b48c6	119	int enc=1,printkey=0,i,base64=0;
8931b30d DSH	120	#ifdef ZLIB
	121	int do_zlib=0;
	122	BIO *bzl = NULL;
	123	#endif
fea9afbf	124	int debug=0,olb64=0,nosalt=0;
e778802f	125	const EVP_CIPHER cipher=NULL,c;
14a948e6	126	EVP_CIPHER_CTX *ctx = NULL;
d02b48c6 RE	127	char inf=NULL,outf=NULL;
d02b48c6 RE	128	BIO in=NULL,out=NULL,b64=NULL,benc=NULL,rbio=NULL,wbio=NULL;
dfee50ec RL	129	#define PROG_NAME_SIZE 39
dfee50ec RL	130	char pname[PROG_NAME_SIZE+1];
0b13e9f0	131	#ifndef OPENSSL_NO_ENGINE
5270e702	132	char *engine = NULL;
0b13e9f0	133	#endif
14a948e6	134	const EVP_MD *dgst=NULL;
d02b48c6 RE	135
	136	apps_startup();
	137
	138	if (bio_err == NULL)
	139	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	140	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6	141
3647bee2 DSH	142	if (!load_config(bio_err, NULL))
	143	goto end;
	144
d02b48c6	145	/* first check the program name */
54a656ef	146	program_name(argv[0],pname,sizeof pname);
d02b48c6 RE	147	if (strcmp(pname,"base64") == 0)
d02b48c6 RE	148	base64=1;
8931b30d DSH	149	#ifdef ZLIB
	150	if (strcmp(pname,"zlib") == 0)
	151	do_zlib=1;
	152	#endif
d02b48c6 RE	153
d02b48c6 RE	154	cipher=EVP_get_cipherbyname(pname);
8931b30d DSH	155	#ifdef ZLIB
	156	if (!do_zlib && !base64 && (cipher == NULL)
	157	&& (strcmp(pname,"enc") != 0))
	158	#else
d02b48c6	159	if (!base64 && (cipher == NULL) && (strcmp(pname,"enc") != 0))
8931b30d	160	#endif
d02b48c6 RE	161	{
	162	BIO_printf(bio_err,"%s is an unknown cipher\n",pname);
	163	goto bad;
	164	}
	165
	166	argc--;
	167	argv++;
	168	while (argc >= 1)
	169	{
	170	if (strcmp(*argv,"-e") == 0)
	171	enc=1;
	172	else if (strcmp(*argv,"-in") == 0)
	173	{
	174	if (--argc < 1) goto bad;
	175	inf= *(++argv);
	176	}
	177	else if (strcmp(*argv,"-out") == 0)
	178	{
	179	if (--argc < 1) goto bad;
	180	outf= *(++argv);
	181	}
cd3c54e5 DSH	182	else if (strcmp(*argv,"-pass") == 0)
	183	{
	184	if (--argc < 1) goto bad;
	185	passarg= *(++argv);
	186	}
0b13e9f0	187	#ifndef OPENSSL_NO_ENGINE
5270e702 RL	188	else if (strcmp(*argv,"-engine") == 0)
	189	{
	190	if (--argc < 1) goto bad;
	191	engine= *(++argv);
	192	}
0b13e9f0	193	#endif
d02b48c6 RE	194	else if (strcmp(*argv,"-d") == 0)
	195	enc=0;
	196	else if (strcmp(*argv,"-p") == 0)
	197	printkey=1;
	198	else if (strcmp(*argv,"-v") == 0)
	199	verbose=1;
f2e5ca84 DSH	200	else if (strcmp(*argv,"-nopad") == 0)
f2e5ca84 DSH	201	nopad=1;
fd699ac5 DSH	202	else if (strcmp(*argv,"-salt") == 0)
	203	nosalt=0;
	204	else if (strcmp(*argv,"-nosalt") == 0)
	205	nosalt=1;
	206	else if (strcmp(*argv,"-debug") == 0)
d02b48c6 RE	207	debug=1;
	208	else if (strcmp(*argv,"-P") == 0)
	209	printkey=2;
58964a49 RE	210	else if (strcmp(*argv,"-A") == 0)
58964a49 RE	211	olb64=1;
d02b48c6 RE	212	else if (strcmp(*argv,"-a") == 0)
	213	base64=1;
	214	else if (strcmp(*argv,"-base64") == 0)
	215	base64=1;
8931b30d DSH	216	#ifdef ZLIB
	217	else if (strcmp(*argv,"-z") == 0)
	218	do_zlib=1;
	219	#endif
d02b48c6 RE	220	else if (strcmp(*argv,"-bufsize") == 0)
	221	{
	222	if (--argc < 1) goto bad;
	223	bufsize=(unsigned char )(++argv);
	224	}
	225	else if (strcmp(*argv,"-k") == 0)
	226	{
	227	if (--argc < 1) goto bad;
	228	str= *(++argv);
	229	}
	230	else if (strcmp(*argv,"-kfile") == 0)
	231	{
	232	static char buf[128];
	233	FILE *infile;
	234	char *file;
	235
	236	if (--argc < 1) goto bad;
	237	file= *(++argv);
	238	infile=fopen(file,"r");
	239	if (infile == NULL)
	240	{
	241	BIO_printf(bio_err,"unable to read key from '%s'\n",
	242	file);
	243	goto bad;
	244	}
	245	buf[0]='\0';
54a656ef	246	fgets(buf,sizeof buf,infile);
d02b48c6 RE	247	fclose(infile);
	248	i=strlen(buf);
	249	if ((i > 0) &&
	250	((buf[i-1] == '\n') \|\| (buf[i-1] == '\r')))
	251	buf[--i]='\0';
	252	if ((i > 0) &&
	253	((buf[i-1] == '\n') \|\| (buf[i-1] == '\r')))
	254	buf[--i]='\0';
	255	if (i < 1)
	256	{
	257	BIO_printf(bio_err,"zero length password\n");
	258	goto bad;
	259	}
	260	str=buf;
	261	}
	262	else if (strcmp(*argv,"-K") == 0)
	263	{
	264	if (--argc < 1) goto bad;
	265	hkey= *(++argv);
	266	}
fd699ac5 DSH	267	else if (strcmp(*argv,"-S") == 0)
	268	{
	269	if (--argc < 1) goto bad;
	270	hsalt= *(++argv);
	271	}
d02b48c6 RE	272	else if (strcmp(*argv,"-iv") == 0)
	273	{
	274	if (--argc < 1) goto bad;
	275	hiv= *(++argv);
	276	}
14a948e6 RL	277	else if (strcmp(*argv,"-md") == 0)
	278	{
	279	if (--argc < 1) goto bad;
	280	md= *(++argv);
	281	}
d02b48c6 RE	282	else if ((argv[0][0] == '-') &&
	283	((c=EVP_get_cipherbyname(&(argv[0][1]))) != NULL))
	284	{
	285	cipher=c;
	286	}
	287	else if (strcmp(*argv,"-none") == 0)
	288	cipher=NULL;
	289	else
	290	{
	291	BIO_printf(bio_err,"unknown option '%s'\n",*argv);
	292	bad:
	293	BIO_printf(bio_err,"options are\n");
	294	BIO_printf(bio_err,"%-14s input file\n","-in <file>");
cd3c54e5 DSH	295	BIO_printf(bio_err,"%-14s output file\n","-out <file>");
cd3c54e5 DSH	296	BIO_printf(bio_err,"%-14s pass phrase source\n","-pass <arg>");
d02b48c6 RE	297	BIO_printf(bio_err,"%-14s encrypt\n","-e");
	298	BIO_printf(bio_err,"%-14s decrypt\n","-d");
	299	BIO_printf(bio_err,"%-14s base64 encode/decode, depending on encryption flag\n","-a/-base64");
14a948e6 RL	300	BIO_printf(bio_err,"%-14s passphrase is the next argument\n","-k");
	301	BIO_printf(bio_err,"%-14s passphrase is the first line of the file argument\n","-kfile");
	302	BIO_printf(bio_err,"%-14s the next argument is the md to use to create a key\n","-md");
	303	BIO_printf(bio_err,"%-14s from a passphrase. One of md2, md5, sha or sha1\n","");
f7b61702	304	BIO_printf(bio_err,"%-14s salt in hex is the next argument\n","-S");
d02b48c6 RE	305	BIO_printf(bio_err,"%-14s key/iv in hex is the next argument\n","-K/-iv");
	306	BIO_printf(bio_err,"%-14s print the iv/key (then exit if -P)\n","-[pP]");
	307	BIO_printf(bio_err,"%-14s buffer size\n","-bufsize <n>");
f7b61702	308	BIO_printf(bio_err,"%-14s disable standard block padding\n","-nopad");
0b13e9f0	309	#ifndef OPENSSL_NO_ENGINE
5270e702	310	BIO_printf(bio_err,"%-14s use engine e, possibly a hardware device.\n","-engine e");
0b13e9f0	311	#endif
d02b48c6 RE	312
d02b48c6 RE	313	BIO_printf(bio_err,"Cipher Types\n");
646d5695 BL	314	OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
	315	show_ciphers,
	316	bio_err);
	317	BIO_printf(bio_err,"\n");
d02b48c6	318
d02b48c6 RE	319	goto end;
	320	}
	321	argc--;
	322	argv++;
	323	}
	324
0b13e9f0	325	#ifndef OPENSSL_NO_ENGINE
531d630b	326	e = setup_engine(bio_err, engine, 0);
0b13e9f0	327	#endif
5270e702	328
14a948e6 RL	329	if (md && (dgst=EVP_get_digestbyname(md)) == NULL)
	330	{
	331	BIO_printf(bio_err,"%s is an unsupported message digest type\n",md);
	332	goto end;
	333	}
	334
	335	if (dgst == NULL)
	336	{
	337	dgst = EVP_md5();
	338	}
	339
d02b48c6 RE	340	if (bufsize != NULL)
	341	{
	342	unsigned long n;
	343
	344	for (n=0; *bufsize; bufsize++)
	345	{
	346	i= *bufsize;
	347	if ((i <= '9') && (i >= '0'))
	348	n=n*10+i-'0';
	349	else if (i == 'k')
	350	{
	351	n*=1024;
	352	bufsize++;
	353	break;
	354	}
	355	}
	356	if (*bufsize != '\0')
	357	{
	358	BIO_printf(bio_err,"invalid 'bufsize' specified.\n");
	359	goto end;
	360	}
	361
	362	/* It must be large enough for a base64 encoded line */
347ed3b9	363	if (base64 && n < 80) n=80;
d02b48c6 RE	364
	365	bsize=(int)n;
	366	if (verbose) BIO_printf(bio_err,"bufsize=%d\n",bsize);
	367	}
	368
26a3a48d RL	369	strbuf=OPENSSL_malloc(SIZE);
26a3a48d RL	370	buff=(unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
d02b48c6 RE	371	if ((buff == NULL) \|\| (strbuf == NULL))
d02b48c6 RE	372	{
26a3a48d	373	BIO_printf(bio_err,"OPENSSL_malloc failure %ld\n",(long)EVP_ENCODE_LENGTH(bsize));
d02b48c6 RE	374	goto end;
	375	}
	376
	377	in=BIO_new(BIO_s_file());
	378	out=BIO_new(BIO_s_file());
	379	if ((in == NULL) \|\| (out == NULL))
	380	{
	381	ERR_print_errors(bio_err);
	382	goto end;
	383	}
	384	if (debug)
	385	{
	386	BIO_set_callback(in,BIO_debug_callback);
	387	BIO_set_callback(out,BIO_debug_callback);
7806f3dd NL	388	BIO_set_callback_arg(in,(char *)bio_err);
7806f3dd NL	389	BIO_set_callback_arg(out,(char *)bio_err);
d02b48c6 RE	390	}
	391
	392	if (inf == NULL)
347ed3b9 DSH	393	{
	394	if (bufsize != NULL)
	395	setvbuf(stdin, (char *)NULL, _IONBF, 0);
d02b48c6	396	BIO_set_fp(in,stdin,BIO_NOCLOSE);
347ed3b9	397	}
d02b48c6 RE	398	else
	399	{
	400	if (BIO_read_filename(in,inf) <= 0)
	401	{
	402	perror(inf);
	403	goto end;
	404	}
	405	}
	406
cd3c54e5 DSH	407	if(!str && passarg) {
	408	if(!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
	409	BIO_printf(bio_err, "Error getting password\n");
	410	goto end;
	411	}
	412	str = pass;
	413	}
	414
d02b48c6 RE	415	if ((str == NULL) && (cipher != NULL) && (hkey == NULL))
	416	{
	417	for (;;)
	418	{
	419	char buf[200];
	420
d420ac2c RL	421	BIO_snprintf(buf,sizeof buf,"enter %s %s password:",
	422	OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
	423	(enc)?"encryption":"decryption");
d02b48c6 RE	424	strbuf[0]='\0';
	425	i=EVP_read_pw_string((char *)strbuf,SIZE,buf,enc);
	426	if (i == 0)
	427	{
	428	if (strbuf[0] == '\0')
	429	{
	430	ret=1;
	431	goto end;
	432	}
	433	str=strbuf;
	434	break;
	435	}
	436	if (i < 0)
	437	{
	438	BIO_printf(bio_err,"bad password read\n");
	439	goto end;
	440	}
	441	}
	442	}
	443
fd699ac5 DSH	444
fd699ac5 DSH	445	if (outf == NULL)
645749ef	446	{
fd699ac5	447	BIO_set_fp(out,stdout,BIO_NOCLOSE);
347ed3b9 DSH	448	if (bufsize != NULL)
347ed3b9 DSH	449	setvbuf(stdout, (char *)NULL, _IONBF, 0);
bc36ee62	450	#ifdef OPENSSL_SYS_VMS
645749ef RL	451	{
	452	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	453	out = BIO_push(tmpbio, out);
	454	}
	455	#endif
	456	}
fd699ac5 DSH	457	else
	458	{
	459	if (BIO_write_filename(out,outf) <= 0)
	460	{
	461	perror(outf);
	462	goto end;
	463	}
	464	}
	465
	466	rbio=in;
	467	wbio=out;
	468
8931b30d DSH	469	#ifdef ZLIB
	470
	471	if (do_zlib)
	472	{
	473	if ((bzl=BIO_new(BIO_f_zlib())) == NULL)
	474	goto end;
	475	if (enc)
	476	wbio=BIO_push(bzl,wbio);
	477	else
	478	rbio=BIO_push(bzl,rbio);
	479	}
	480	#endif
	481
fd699ac5 DSH	482	if (base64)
	483	{
	484	if ((b64=BIO_new(BIO_f_base64())) == NULL)
	485	goto end;
	486	if (debug)
	487	{
	488	BIO_set_callback(b64,BIO_debug_callback);
7806f3dd	489	BIO_set_callback_arg(b64,(char *)bio_err);
fd699ac5 DSH	490	}
	491	if (olb64)
	492	BIO_set_flags(b64,BIO_FLAGS_BASE64_NO_NL);
	493	if (enc)
	494	wbio=BIO_push(b64,wbio);
	495	else
	496	rbio=BIO_push(b64,rbio);
	497	}
	498
d02b48c6 RE	499	if (cipher != NULL)
d02b48c6 RE	500	{
259810e0 BL	501	/* Note that str is NULL if a key was passed on the command
	502	* line, so we get no salt in that case. Is this a bug?
	503	*/
d02b48c6 RE	504	if (str != NULL)
d02b48c6 RE	505	{
fd699ac5 DSH	506	/* Salt handling: if encrypting generate a salt and
	507	* write to output BIO. If decrypting read salt from
	508	* input BIO.
	509	*/
	510	unsigned char *sptr;
	511	if(nosalt) sptr = NULL;
	512	else {
	513	if(enc) {
	514	if(hsalt) {
54a656ef	515	if(!set_hex(hsalt,salt,sizeof salt)) {
fd699ac5 DSH	516	BIO_printf(bio_err,
	517	"invalid hex salt value\n");
	518	goto end;
	519	}
54a656ef	520	} else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
e7f97e2d	521	goto end;
fd699ac5	522	/* If -P option then don't bother writing */
fea9afbf BL	523	if((printkey != 2)
	524	&& (BIO_write(wbio,magic,
	525	sizeof magic-1) != sizeof magic-1
	526	\|\| BIO_write(wbio,
	527	(char *)salt,
54a656ef	528	sizeof salt) != sizeof salt)) {
fd699ac5 DSH	529	BIO_printf(bio_err,"error writing output file\n");
	530	goto end;
	531	}
fea9afbf BL	532	} else if(BIO_read(rbio,mbuf,sizeof mbuf) != sizeof mbuf
	533	\|\| BIO_read(rbio,
	534	(unsigned char *)salt,
54a656ef	535	sizeof salt) != sizeof salt) {
fd699ac5 DSH	536	BIO_printf(bio_err,"error reading input file\n");
fd699ac5 DSH	537	goto end;
fea9afbf BL	538	} else if(memcmp(mbuf,magic,sizeof magic-1)) {
	539	BIO_printf(bio_err,"bad magic number\n");
	540	goto end;
fd699ac5	541	}
fea9afbf	542
fd699ac5 DSH	543	sptr = salt;
	544	}
	545
14a948e6	546	EVP_BytesToKey(cipher,dgst,sptr,
d02b48c6 RE	547	(unsigned char *)str,
	548	strlen(str),1,key,iv);
	549	/* zero the complete buffer or the string
	550	* passed from the command line
	551	* bug picked up by
	552	* Larry J. Hughes Jr. <hughes@indiana.edu> */
	553	if (str == strbuf)
4579924b	554	OPENSSL_cleanse(str,SIZE);
d02b48c6	555	else
4579924b	556	OPENSSL_cleanse(str,strlen(str));
d02b48c6	557	}
757e392d	558	if ((hiv != NULL) && !set_hex(hiv,iv,sizeof iv))
d02b48c6 RE	559	{
	560	BIO_printf(bio_err,"invalid hex iv value\n");
	561	goto end;
	562	}
43f9391b LJ	563	if ((hiv == NULL) && (str == NULL))
	564	{
	565	/* No IV was explicitly set and no IV was generated
	566	* during EVP_BytesToKey. Hence the IV is undefined,
	567	* making correct decryption impossible. */
	568	BIO_printf(bio_err, "iv undefined\n");
	569	goto end;
	570	}
757e392d	571	if ((hkey != NULL) && !set_hex(hkey,key,sizeof key))
d02b48c6 RE	572	{
	573	BIO_printf(bio_err,"invalid hex key value\n");
	574	goto end;
	575	}
	576
	577	if ((benc=BIO_new(BIO_f_cipher())) == NULL)
	578	goto end;
14a948e6 RL	579
	580	/* Since we may be changing parameters work on the encryption
	581	* context rather than calling BIO_set_cipher().
	582	*/
	583
	584	BIO_get_cipher_ctx(benc, &ctx);
	585	if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc))
f2e5ca84	586	{
14a948e6 RL	587	BIO_printf(bio_err, "Error setting cipher %s\n",
	588	EVP_CIPHER_name(cipher));
	589	ERR_print_errors(bio_err);
	590	goto end;
	591	}
	592
	593	if (nopad)
f2e5ca84	594	EVP_CIPHER_CTX_set_padding(ctx, 0);
14a948e6 RL	595
	596	if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc))
	597	{
	598	BIO_printf(bio_err, "Error setting cipher %s\n",
	599	EVP_CIPHER_name(cipher));
	600	ERR_print_errors(bio_err);
	601	goto end;
f2e5ca84	602	}
14a948e6	603
d02b48c6 RE	604	if (debug)
	605	{
	606	BIO_set_callback(benc,BIO_debug_callback);
7806f3dd	607	BIO_set_callback_arg(benc,(char *)bio_err);
d02b48c6 RE	608	}
	609
	610	if (printkey)
	611	{
fd699ac5 DSH	612	if (!nosalt)
	613	{
	614	printf("salt=");
27545970	615	for (i=0; i<(int)sizeof(salt); i++)
fd699ac5 DSH	616	printf("%02X",salt[i]);
	617	printf("\n");
	618	}
d02b48c6 RE	619	if (cipher->key_len > 0)
	620	{
	621	printf("key=");
	622	for (i=0; i<cipher->key_len; i++)
	623	printf("%02X",key[i]);
	624	printf("\n");
	625	}
	626	if (cipher->iv_len > 0)
	627	{
	628	printf("iv =");
	629	for (i=0; i<cipher->iv_len; i++)
	630	printf("%02X",iv[i]);
	631	printf("\n");
	632	}
	633	if (printkey == 2)
	634	{
	635	ret=0;
	636	goto end;
	637	}
	638	}
	639	}
	640
d02b48c6 RE	641	/* Only encrypt/decrypt as we write the file */
	642	if (benc != NULL)
	643	wbio=BIO_push(benc,wbio);
	644
	645	for (;;)
	646	{
	647	inl=BIO_read(rbio,(char *)buff,bsize);
	648	if (inl <= 0) break;
	649	if (BIO_write(wbio,(char *)buff,inl) != inl)
	650	{
	651	BIO_printf(bio_err,"error writing output file\n");
	652	goto end;
	653	}
	654	}
	655	if (!BIO_flush(wbio))
	656	{
	657	BIO_printf(bio_err,"bad decrypt\n");
	658	goto end;
	659	}
	660
	661	ret=0;
	662	if (verbose)
	663	{
	664	BIO_printf(bio_err,"bytes read :%8ld\n",BIO_number_read(in));
	665	BIO_printf(bio_err,"bytes written:%8ld\n",BIO_number_written(out));
	666	}
	667	end:
033db22d	668	ERR_print_errors(bio_err);
26a3a48d RL	669	if (strbuf != NULL) OPENSSL_free(strbuf);
26a3a48d RL	670	if (buff != NULL) OPENSSL_free(buff);
d02b48c6	671	if (in != NULL) BIO_free(in);
645749ef	672	if (out != NULL) BIO_free_all(out);
d02b48c6 RE	673	if (benc != NULL) BIO_free(benc);
d02b48c6 RE	674	if (b64 != NULL) BIO_free(b64);
8931b30d DSH	675	#ifdef ZLIB
	676	if (bzl != NULL) BIO_free(bzl);
	677	#endif
26a3a48d	678	if(pass) OPENSSL_free(pass);
c04f8cf4	679	apps_shutdown();
1c3e4a36	680	OPENSSL_EXIT(ret);
d02b48c6 RE	681	}
d02b48c6 RE	682
6b691a5c	683	int set_hex(char in, unsigned char out, int size)
d02b48c6 RE	684	{
	685	int i,n;
	686	unsigned char j;
	687
	688	n=strlen(in);
	689	if (n > (size*2))
	690	{
	691	BIO_printf(bio_err,"hex string is too long\n");
	692	return(0);
	693	}
	694	memset(out,0,size);
	695	for (i=0; i<n; i++)
	696	{
	697	j=(unsigned char)*in;
	698	*(in++)='\0';
	699	if (j == 0) break;
	700	if ((j >= '0') && (j <= '9'))
	701	j-='0';
	702	else if ((j >= 'A') && (j <= 'F'))
	703	j=j-'A'+10;
	704	else if ((j >= 'a') && (j <= 'f'))
	705	j=j-'a'+10;
	706	else
	707	{
	708	BIO_printf(bio_err,"non-hex digit\n");
	709	return(0);
	710	}
	711	if (i&1)
	712	out[i/2]\|=j;
	713	else
	714	out[i/2]=(j<<4);
	715	}
	716	return(1);
	717	}