if (strcmp(argv[i], "-engine") == 0)
else if (strcmp(argv[i], "-engine") == 0)
int MAIN(int argc, char **argv)	{	ENGINE *e = NULL;	int i, r, ret = 1;	int badopt;	char *outfile = NULL;	char *inrand = NULL;	int base64 = 0;	BIO *out = NULL;	int num = -1;	char *engine=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);	badopt = 0;	i = 0;	while (!badopt && argv[++i] != NULL)		{		if (strcmp(argv[i], "-out") == 0)			{			if ((argv[i+1] != NULL) && (outfile == NULL))				outfile = argv[++i];			else				badopt = 1;			}		if (strcmp(argv[i], "-engine") == 0)			{			if ((argv[i+1] != NULL) && (engine == NULL))				engine = argv[++i];			else				badopt = 1;			}		else if (strcmp(argv[i], "-rand") == 0)			{			if ((argv[i+1] != NULL) && (inrand == NULL))				inrand = argv[++i];			else				badopt = 1;			}		else if (strcmp(argv[i], "-base64") == 0)			{			if (!base64)				base64 = 1;			else				badopt = 1;			}		else if (isdigit((unsigned char)argv[i][0]))			{			if (num < 0)				{				r = sscanf(argv[i], "%d", &num);				if (r == 0 || num < 0)					badopt = 1;				}			else				badopt = 1;			}		else			badopt = 1;		}	if (num < 0)		badopt = 1;		if (badopt) 		{		BIO_printf(bio_err, "Usage: rand [options] num\n");		BIO_printf(bio_err, "where options are\n");		BIO_printf(bio_err, "-out file             - write to file\n");		BIO_printf(bio_err," -engine e             - use engine e, possibly a hardware device.\n");		BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);		BIO_printf(bio_err, "-base64               - encode output\n");		goto err;		}	if (engine != NULL)		{		if((e = ENGINE_by_id(engine)) == NULL)			{			BIO_printf(bio_err,"invalid engine \"%s\"\n",				engine);			goto err;			}		if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))			{			BIO_printf(bio_err,"can't use that engine\n");			goto err;			}		BIO_printf(bio_err,"engine \"%s\" set.\n", engine);		/* Free our "structural" reference. */		ENGINE_free(e);		}	app_RAND_load_file(NULL, bio_err, (inrand != NULL));	if (inrand != NULL)		BIO_printf(bio_err,"%ld semi-random bytes loaded\n",			app_RAND_load_files(inrand));	out = BIO_new(BIO_s_file());	if (out == NULL)		goto err;	if (outfile != NULL)		r = BIO_write_filename(out, outfile);	else		{		r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);#ifdef VMS		{		BIO *tmpbio = BIO_new(BIO_f_linebuffer());		out = BIO_push(tmpbio, out);		}#endif		}	if (r <= 0)		goto err;	if (base64)		{		BIO *b64 = BIO_new(BIO_f_base64());		if (b64 == NULL)			goto err;		out = BIO_push(b64, out);		}		while (num > 0) 		{		unsigned char buf[4096];		int chunk;		chunk = num;		if (chunk > sizeof buf)			chunk = sizeof buf;		r = RAND_bytes(buf, chunk);		if (r <= 0)			goto err;		BIO_write(out, buf, chunk);		num -= chunk;		}	BIO_flush(out);	app_RAND_write_file(NULL, bio_err);	ret = 0;	err:	ERR_print_errors(bio_err);	if (out)		BIO_free_all(out);	EXIT(ret);	}