/*
**  Copyright (c) 2005-2008 Sendmail, Inc. and its suppliers.
**    All rights reserved.
**
**  Copyright (c) 2009, 2011-2013, The Trusted Domain Project.
**    All rights reserved.
**
**  Copyright (c) 2026, PhoenixDKIM contributors.
**    All rights reserved.
*/

#include "build-config.h"

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


/* 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	NULLBH		"bh=47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU="

/*
**  EATWS -- eat whitespace
**
**  Parameters:
**  	str -- string to crush
**
**  Return value:
**  	None.
*/

static void
eatws(char *str)
{
	char *p;
	char *q;

	for (p = str, q = str; *p != '\0'; p++)
	{
		if (!isascii(*p) || !isspace(*p))
		{
			*q = *p;
			q++;
		}
	}

	*q = '\0';
}

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

int
main(int argc, char **argv)
{
#ifdef TEST_KEEP_FILES
	u_int flags;
#endif /* TEST_KEEP_FILES */
	DKIM_STAT status;
	uint64_t fixed_time;
	u_char *p;
	char *last;
	DKIM *dkim;
	DKIM_LIB *lib;
	dkim_sigkey_t key;
	unsigned char hdr[MAXHEADER + 1];
	unsigned char hdr2[MAXHEADER + 1];


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

	if (!dkim_libfeature(lib, DKIM_FEATURE_SHA256))
	{
		printf("*** relaxed/relaxed rsa-sha256 body blank reduction SKIPPED\n");
		dkim_close(lib);
		return 0;
	}

	printf("*** relaxed/relaxed rsa-sha256 body blank reduction\n");

#ifdef TEST_KEEP_FILES
	/* set flags */
	flags = (DKIM_LIBFLAGS_TMPFILES|DKIM_LIBFLAGS_KEEPFILES);
	(void) dkim_setopt(lib, 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_RELAXED,
	                 DKIM_SIGN_RSASHA256, -1L, &status);
	assert(dkim != NULL);

	/* fix signing time */
	fixed_time = 1172620939;
	(void) dkim_setopt(lib, 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_eoh(dkim);
	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);

	strlcpy(hdr2, hdr, sizeof hdr2);
	for (p = strtok_r(hdr2, ";", &last);
	     p != NULL;
	     p = strtok_r(NULL, ";", &last))
	{
		eatws(p);
		if (strncmp(p, "bh=", 3) == 0)
			assert(strcmp(p, NULLBH) == 0);
	}

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

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

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

	status = dkim_body(dkim, CRLF, 2);
	assert(status == DKIM_STAT_OK);

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

	memset(hdr2, '\0', sizeof hdr2);
	status = dkim_getsighdr(dkim, hdr2, sizeof hdr2,
	                        strlen(DKIM_SIGNHEADER) + 2);
	assert(status == DKIM_STAT_OK);
	assert(strcmp(hdr2, hdr) == 0);

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

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

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

	status = dkim_body(dkim, CRLF CRLF SP SP CRLF, 2);
	assert(status == DKIM_STAT_OK);

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

	memset(hdr2, '\0', sizeof hdr2);
	status = dkim_getsighdr(dkim, hdr2, sizeof hdr2,
	                        strlen(DKIM_SIGNHEADER) + 2);
	assert(status == DKIM_STAT_OK);
	assert(strcmp(hdr2, hdr) == 0);

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

	dkim_close(lib);

	return 0;
}
