/*
**  Copyright (c) 2005-2008 Sendmail, Inc. and its suppliers.
**    All rights reserved.
**
**  Copyright (c) 2009, 2011-2013, The Trusted Domain Project.
**    All rights reserved.
*/

#include "build-config.h"

/* system includes */
#include <sys/types.h>
#include <assert.h>
#include <string.h>
#include <stdio.h>

#ifdef USE_GNUTLS
# include <gnutls/gnutls.h>
#endif /* USE_GNUTLS */

/* libopendkim includes */
#include "../dkim.h"
#include "t-testdata.h"

/* libbsd if found */
#ifdef USE_BSD_H
# include <bsd/string.h>
#endif /* USE_BSD_H */

/* libstrl if needed */
#ifdef USE_STRL_H
# include <strl.h>
#endif /* USE_STRL_H */

#define	MAXHEADER	4096

#define	GIBBERISHLEN	(sizeof(GIBBERISH) - 1)

#define SIG2 "v=1; a=rsa-sha256; c=relaxed/simple; d=example.com; s=test;\r\n\tt=1172620939; bh=5Z5kUG7FTM/P2DzvDVOdFzOUr6m33zc4K5qzpwn+jTc=;\r\n\th=Received:Received:Received:From:To:Date:Subject:Message-ID;\r\n\tb=qtj/DXxof5Ek/8aSXCGkyqpRCAviW6vmwx9feqGq/OnxMwYwCbwa5TOayfJHGdL1/\r\n\t IK7GL77WMa/Jn0d580YG/qS+wOE2cWas3rR2xnPwvjXpUr8ck/xMH8R79mEWbZ+wTT\r\n\t v0mKf0YcpyicBf+Y/OBQW930kmIqPzo1/qfwWhgc="

/*
**  MAIN -- program mainline
**
**  Parameters:
**  	The usual.
**
**  Return value:
**  	Exit status.
*/

int
main(void)
{
	size_t llen = 0;
	size_t wlen = LARGEBODYSIZE;
# ifdef TEST_KEEP_FILES
	u_int flags;
# endif /* TEST_KEEP_FILES */
	DKIM_STAT status;
	uint64_t fixed_time;
	char *p;
	DKIM *dkim;
	DKIM_LIB *lib;
	dkim_sigkey_t key;
	char gibline[sizeof(GIBBERISH) + 1];
	char hdr[MAXHEADER + 1];
	char body[LARGEBODYSIZE];

	strlcpy(gibline, GIBBERISH, sizeof gibline);
	p = strchr(gibline, '\r');
	if (p != NULL)
		*p = '\0';

#ifdef USE_GNUTLS
	(void) gnutls_global_init();
#endif /* USE_GNUTLS */

	/* instantiate the library */
	lib = dkim_init(1, NULL, NULL);
	assert(lib != NULL);

	if (!dkim_libfeature(lib, DKIM_FEATURE_SHA256))
	{
		printf("*** relaxed/simple rsa-sha256 signing large lines SKIPPED\n");
		dkim_close(lib);
		return 0;
	}

	printf("*** relaxed/simple rsa-sha256 signing large lines\n");

#ifdef TEST_KEEP_FILES
	/* set flags */
	flags = (DKIM_LIBFLAGS_TMPFILES|DKIM_LIBFLAGS_KEEPFILES);
	(void) dkim_options(lib, DKIM_OP_SETOPT, DKIM_OPTS_FLAGS, &flags,
	                    sizeof flags);
#endif /* TEST_KEEP_FILES */

	key = KEY;

	dkim = dkim_sign(lib, JOBID, NULL, // key, SELECTOR, DOMAIN,
	                 DKIM_CANON_RELAXED, DKIM_CANON_SIMPLE,
	                 DKIM_SIGN_RSASHA256, -1L, &status);
	assert(dkim != NULL);

	/* fix signing time */
	fixed_time = 1172620939;
	(void) dkim_options(lib, DKIM_OP_SETOPT, DKIM_OPTS_FIXEDTIME,
	                    &fixed_time, sizeof fixed_time);

	status = dkim_header(dkim, HEADER02, strlen(HEADER02));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER03, strlen(HEADER03));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER04, strlen(HEADER04));
	assert(status == DKIM_STAT_OK);


	status = dkim_header(dkim, HEADER05, strlen(HEADER05));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER06, strlen(HEADER06));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER07, strlen(HEADER07));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER08, strlen(HEADER08));
	assert(status == DKIM_STAT_OK);

	status = dkim_header(dkim, HEADER09, strlen(HEADER09));
	assert(status == DKIM_STAT_OK);

	status = dkim_signkeys(dkim, key, SELECTOR, DOMAIN);
	assert(status == DKIM_STAT_OK);

	status = dkim_eoh(dkim);
	assert(status == DKIM_STAT_OK);

	memset(body, '\0', sizeof body);

	while (wlen > GIBBERISHLEN + 2)
	{
		strlcat(body, gibline, sizeof body);
		wlen -= strlen(gibline);
		llen += strlen(gibline);

		if (llen > LARGELINESIZE)
		{
			strlcat(body, CRLF, sizeof body);
			wlen -= 2;
			llen = 0;
		}
	}

	strlcat(body, CRLF, sizeof body);

	status = dkim_body(dkim, body, strlen(body));
	assert(status == DKIM_STAT_OK);
	status = dkim_body(dkim, CRLF, strlen(CRLF));
	assert(status == DKIM_STAT_OK);

	status = dkim_eom(dkim, NULL);
	assert(status == DKIM_STAT_OK);

	memset(hdr, '\0', sizeof hdr);
	status = dkim_getsighdr(dkim, hdr, sizeof hdr,
	                        strlen(DKIM_SIGNHEADER) + 2);
	assert(status == DKIM_STAT_OK);
	assert(strcmp(SIG2, hdr) == 0);

	status = dkim_free(dkim);
	assert(status == DKIM_STAT_OK);

	dkim_close(lib);

	return 0;
}
