[babeltrace.git] / compat / compat_uuid.c

/*
 * compat/compat_uuid.h
 *
 * Copyright (C) 2013   Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

/* This file is only built under MINGW32 */

#include <windows.h>
#include <stdlib.h>
#include <babeltrace/compat/uuid.h>

/* MinGW does not provide byteswap - implement our own version. */
static
void swap(unsigned char *ptr, unsigned int i, unsigned int j)
{
	unsigned char tmp;

	tmp = ptr[i];
	ptr[i] = ptr[j];
	ptr[j] = tmp;
}

static
void fix_uuid_endian(unsigned char * ptr)
{
	swap(ptr, 0, 3)
	swap(ptr, 1, 2)
	swap(ptr, 4, 5)
	swap(ptr, 6, 7)
}

int bt_uuid_generate(unsigned char *uuid_out)
{
	RPC_STATUS status;

	status = UuidCreate((struct UUID *)uuid_out);
	if (status == RPC_S_OK)
		return 0;
	else
		return -1;
}

int bt_uuid_unparse(const unsigned char *uuid_in, char *str_out)
{
	RPC_STATUS status;
	unsigned char *alloc_str;
	int ret;
	unsigned char copy_of_uuid_in[BABELTRACE_UUID_LEN];

	/* make a modifyable copy of uuid_in */
	memcpy(copy_of_uuid_in, uuid_in, BABELTRACE_UUID_LEN);

	fix_uuid_endian(copy_of_uuid_in);
	status = UuidToString((struct UUID *) copy_of_uuid_in, &alloc_str);

	if (status == RPC_S_OK) {
		strncpy(str_out, (char *) alloc_str, BABELTRACE_UUID_STR_LEN);
		str_out[BABELTRACE_UUID_STR_LEN - 1] = '\0';
		ret = 0;
	} else {
		ret = -1;
	}
	RpcStringFree(&alloc_str);
	return ret;
}

int bt_uuid_parse(const char *str_in, unsigned char *uuid_out)
{
	RPC_STATUS status;

	status = UuidFromString((unsigned char *) str_in,
			(struct UUID *) uuid_out);
	fix_uuid_endian(uuid_out);

	if (status == RPC_S_OK)
		return 0;
	else
		return -1;
}

int bt_uuid_compare(const unsigned char *uuid_a,
		const unsigned char *uuid_b)
{
	RPC_STATUS status;

	if (!UuidCompare((struct UUID *) uuid_a, (struct UUID *) uuid_b,
			&status)) {
		return 0;
	} else {
		return -1;
	}
}
Commit	Line	Data
9d1e7de0 JI	1	/*
	2	* compat/compat_uuid.h
	3	*
	4	* Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	19	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	22	* SOFTWARE.
	23	*/
	24
	25	/* This file is only built under MINGW32 */
	26
	27	#include <windows.h>
	28	#include <stdlib.h>
	29	#include <babeltrace/compat/uuid.h>
	30
	31	/* MinGW does not provide byteswap - implement our own version. */
	32	static
	33	void swap(unsigned char *ptr, unsigned int i, unsigned int j)
	34	{
	35	unsigned char tmp;
	36
	37	tmp = ptr[i];
	38	ptr[i] = ptr[j];
	39	ptr[j] = tmp;
	40	}
	41
	42	static
	43	void fix_uuid_endian(unsigned char * ptr)
	44	{
	45	swap(ptr, 0, 3)
	46	swap(ptr, 1, 2)
	47	swap(ptr, 4, 5)
	48	swap(ptr, 6, 7)
	49	}
	50
19dd40db	51	int bt_uuid_generate(unsigned char *uuid_out)
9d1e7de0 JI	52	{
	53	RPC_STATUS status;
	54
	55	status = UuidCreate((struct UUID *)uuid_out);
	56	if (status == RPC_S_OK)
	57	return 0;
	58	else
	59	return -1;
	60	}
	61
19dd40db	62	int bt_uuid_unparse(const unsigned char uuid_in, char str_out)
9d1e7de0 JI	63	{
	64	RPC_STATUS status;
	65	unsigned char *alloc_str;
	66	int ret;
	67	unsigned char copy_of_uuid_in[BABELTRACE_UUID_LEN];
	68
	69	/* make a modifyable copy of uuid_in */
	70	memcpy(copy_of_uuid_in, uuid_in, BABELTRACE_UUID_LEN);
	71
	72	fix_uuid_endian(copy_of_uuid_in);
	73	status = UuidToString((struct UUID *) copy_of_uuid_in, &alloc_str);
	74
	75	if (status == RPC_S_OK) {
	76	strncpy(str_out, (char *) alloc_str, BABELTRACE_UUID_STR_LEN);
	77	str_out[BABELTRACE_UUID_STR_LEN - 1] = '\0';
	78	ret = 0;
	79	} else {
	80	ret = -1;
	81	}
	82	RpcStringFree(&alloc_str);
	83	return ret;
	84	}
	85
19dd40db	86	int bt_uuid_parse(const char str_in, unsigned char uuid_out)
9d1e7de0 JI	87	{
	88	RPC_STATUS status;
	89
	90	status = UuidFromString((unsigned char *) str_in,
	91	(struct UUID *) uuid_out);
	92	fix_uuid_endian(uuid_out);
	93
	94	if (status == RPC_S_OK)
	95	return 0;
	96	else
	97	return -1;
	98	}
	99
19dd40db	100	int bt_uuid_compare(const unsigned char *uuid_a,
9d1e7de0 JI	101	const unsigned char *uuid_b)
	102	{
	103	RPC_STATUS status;
	104
	105	if (!UuidCompare((struct UUID ) uuid_a, (struct UUID ) uuid_b,
	106	&status)) {
	107	return 0;
	108	} else {
	109	return -1;
	110	}
	111	}