unsigned char key[24],iv[MD5_DIGEST_LENGTH];
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;	unsigned char key[24],iv[MD5_DIGEST_LENGTH];	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        char pname[PROG_NAME_SIZE+1];	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);	}