/* Obtains a cipher implementation from an ENGINE functional reference */
const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid)
	{
	const EVP_CIPHER *ret;
	ENGINE_CIPHERS_PTR fn = ENGINE_get_ciphers(e);
	if(!fn || !fn(e, &ret, NULL, nid))
		{
		ENGINEerr(ENGINE_F_ENGINE_GET_CIPHER,
				ENGINE_R_UNIMPLEMENTED_CIPHER);
		return NULL;
		}
	return ret;
	}
예제 #2
0
int MAIN(int argc, char **argv)
	{
	int ret=1,i;
	const char **pp;
	int verbose=0, list_cap=0, test_avail=0, test_avail_noise = 0;
	ENGINE *e;
	STACK *engines = sk_new_null();
	STACK *pre_cmds = sk_new_null();
	STACK *post_cmds = sk_new_null();
	int badops=1;
	BIO *bio_out=NULL;
	const char *indent = "     ";

	apps_startup();
	SSL_load_error_strings();

	if (bio_err == NULL)
		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);

	if (!load_config(bio_err, NULL))
		goto end;
	bio_out=BIO_new_fp(stdout,BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
	{
	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	bio_out = BIO_push(tmpbio, bio_out);
	}
#endif

	argc--;
	argv++;
	while (argc >= 1)
		{
		if (strncmp(*argv,"-v",2) == 0)
			{
			if(strspn(*argv + 1, "v") < strlen(*argv + 1))
				goto skip_arg_loop;
			if((verbose=strlen(*argv + 1)) > 4)
				goto skip_arg_loop;
			}
		else if (strcmp(*argv,"-c") == 0)
			list_cap=1;
		else if (strncmp(*argv,"-t",2) == 0)
			{
			test_avail=1;
			if(strspn(*argv + 1, "t") < strlen(*argv + 1))
				goto skip_arg_loop;
			if((test_avail_noise = strlen(*argv + 1) - 1) > 1)
				goto skip_arg_loop;
			}
		else if (strcmp(*argv,"-pre") == 0)
			{
			argc--; argv++;
			if (argc == 0)
				goto skip_arg_loop;
			sk_push(pre_cmds,*argv);
			}
		else if (strcmp(*argv,"-post") == 0)
			{
			argc--; argv++;
			if (argc == 0)
				goto skip_arg_loop;
			sk_push(post_cmds,*argv);
			}
		else if ((strncmp(*argv,"-h",2) == 0) ||
				(strcmp(*argv,"-?") == 0))
			goto skip_arg_loop;
		else
			sk_push(engines,*argv);
		argc--;
		argv++;
		}
	/* Looks like everything went OK */
	badops = 0;
skip_arg_loop:

	if (badops)
		{
		for (pp=engine_usage; (*pp != NULL); pp++)
			BIO_printf(bio_err,"%s",*pp);
		goto end;
		}

	if (sk_num(engines) == 0)
		{
		for(e = ENGINE_get_first(); e != NULL; e = ENGINE_get_next(e))
			{
			sk_push(engines,(char *)ENGINE_get_id(e));
			}
		}

	for (i=0; i<sk_num(engines); i++)
		{
		const char *id = sk_value(engines,i);
		if ((e = ENGINE_by_id(id)) != NULL)
			{
			const char *name = ENGINE_get_name(e);
			/* Do "id" first, then "name". Easier to auto-parse. */
			BIO_printf(bio_out, "(%s) %s\n", id, name);
			util_do_cmds(e, pre_cmds, bio_out, indent);
			if (strcmp(ENGINE_get_id(e), id) != 0)
				{
				BIO_printf(bio_out, "Loaded: (%s) %s\n",
					ENGINE_get_id(e), ENGINE_get_name(e));
				}
			if (list_cap)
				{
				int cap_size = 256;
				char *cap_buf = NULL;
				int k,n;
				const int *nids;
				ENGINE_CIPHERS_PTR fn_c;
				ENGINE_DIGESTS_PTR fn_d;

				if (ENGINE_get_RSA(e) != NULL
					&& !append_buf(&cap_buf, "RSA",
						&cap_size, 256))
					goto end;
				if (ENGINE_get_DSA(e) != NULL
					&& !append_buf(&cap_buf, "DSA",
						&cap_size, 256))
					goto end;
				if (ENGINE_get_DH(e) != NULL
					&& !append_buf(&cap_buf, "DH",
						&cap_size, 256))
					goto end;
				if (ENGINE_get_RAND(e) != NULL
					&& !append_buf(&cap_buf, "RAND",
						&cap_size, 256))
					goto end;

				fn_c = ENGINE_get_ciphers(e);
				if(!fn_c) goto skip_ciphers;
				n = fn_c(e, NULL, &nids, 0);
				for(k=0 ; k < n ; ++k)
					if(!append_buf(&cap_buf,
						       OBJ_nid2sn(nids[k]),
						       &cap_size, 256))
						goto end;

skip_ciphers:
				fn_d = ENGINE_get_digests(e);
				if(!fn_d) goto skip_digests;
				n = fn_d(e, NULL, &nids, 0);
				for(k=0 ; k < n ; ++k)
					if(!append_buf(&cap_buf,
						       OBJ_nid2sn(nids[k]),
						       &cap_size, 256))
						goto end;

skip_digests:
				if (cap_buf && (*cap_buf != '\0'))
					BIO_printf(bio_out, " [%s]\n", cap_buf);

				OPENSSL_free(cap_buf);
				}
			if(test_avail)
				{
				BIO_printf(bio_out, "%s", indent);
				if (ENGINE_init(e))
					{
					BIO_printf(bio_out, "[ available ]\n");
					util_do_cmds(e, post_cmds, bio_out, indent);
					ENGINE_finish(e);
					}
				else
					{
					BIO_printf(bio_out, "[ unavailable ]\n");
					if(test_avail_noise)
						ERR_print_errors_fp(stdout);
					ERR_clear_error();
					}
				}
			if((verbose > 0) && !util_verbose(e, verbose, bio_out, indent))
				goto end;
			ENGINE_free(e);
			}
		else
			ERR_print_errors(bio_err);
		}

	ret=0;
end:

	ERR_print_errors(bio_err);
	sk_pop_free(engines, identity);
	sk_pop_free(pre_cmds, identity);
	sk_pop_free(post_cmds, identity);
	if (bio_out != NULL) BIO_free_all(bio_out);
	apps_shutdown();
	OPENSSL_EXIT(ret);
	}