Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libc/uuid/uuid_from_string.c	Lines:	0	23	0.0 %
Date:	2017-11-13	Branches:	0	22	0.0 %


/*	$OpenBSD: uuid_from_string.c,v 1.2 2015/09/10 18:13:46 guenther Exp $	*/
/*	$NetBSD: uuid_from_string.c,v 1.1 2004/09/13 21:44:54 thorpej Exp $	*/

/*
 * Copyright (c) 2002 Marcel Moolenaar
 * Copyright (c) 2002 Hiten Mahesh Pandya
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/lib/libc/uuid/uuid_from_string.c,v 1.2 2003/08/08 19:18:43 marcel Exp $
 */

#include <stdio.h>
#include <string.h>
#include <uuid.h>

/*
 * uuid_from_string() - convert a string representation of an UUID into
 *			a binary representation.
 * See also:
 *	http://www.opengroup.org/onlinepubs/009629399/uuid_from_string.htm
 *
 * NOTE: The sequence field is in big-endian, while the time fields are in
 *	 native byte order.
 */
void
uuid_from_string(const char *s, uuid_t *u, uint32_t *status)
{
	int n;

	/* Short-circuit 2 special cases: NULL pointer and empty string. */
	if (s == NULL || *s == '\0') {
		uuid_create_nil(u, status);
		return;
	}

	/* Assume the worst. */
	if (status != NULL)
		*status = uuid_s_invalid_string_uuid;

	/* The UUID string representation has a fixed length. */
	if (strlen(s) != UUID_STR_LEN)
		return;

	/*
	 * We only work with "new" UUIDs. New UUIDs have the form:
	 *	01234567-89ab-cdef-0123-456789abcdef
	 * The so called "old" UUIDs, which we don't support, have the form:
	 *	0123456789ab.cd.ef.01.23.45.67.89.ab
	 */
	if (s[8] != '-')
		return;

	n = sscanf(s,
	    "%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx",
	    &u->time_low, &u->time_mid, &u->time_hi_and_version,
	    &u->clock_seq_hi_and_reserved, &u->clock_seq_low, &u->node[0],
	    &u->node[1], &u->node[2], &u->node[3], &u->node[4], &u->node[5]);

	/* Make sure we have all conversions. */
	if (n != 11)
		return;

	/* We have a successful scan. Check semantics... */
	n = u->clock_seq_hi_and_reserved;
	if ((n & 0x80) != 0x00 &&			/* variant 0? */
	    (n & 0xc0) != 0x80 &&			/* variant 1? */
	    (n & 0xe0) != 0xc0) {			/* variant 2? */
		if (status != NULL)
			*status = uuid_s_bad_version;
	} else {
		if (status != NULL)
			*status = uuid_s_ok;
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: uuid_from_string.c,v 1.2 2015/09/10 18:13:46 guenther Exp $ */
2			/* $NetBSD: uuid_from_string.c,v 1.1 2004/09/13 21:44:54 thorpej Exp $ */
3
4			/*
5			* Copyright (c) 2002 Marcel Moolenaar
6			* Copyright (c) 2002 Hiten Mahesh Pandya
7			* All rights reserved.
8			*
9			* Redistribution and use in source and binary forms, with or without
10			* modification, are permitted provided that the following conditions
11			* are met:
12			* 1. Redistributions of source code must retain the above copyright
13			* notice, this list of conditions and the following disclaimer.
14			* 2. Redistributions in binary form must reproduce the above copyright
15			* notice, this list of conditions and the following disclaimer in the
16			* documentation and/or other materials provided with the distribution.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28			* SUCH DAMAGE.
29			*
30			* $FreeBSD: src/lib/libc/uuid/uuid_from_string.c,v 1.2 2003/08/08 19:18:43 marcel Exp $
31			*/
32
33			#include <stdio.h>
34			#include <string.h>
35			#include <uuid.h>
36
37			/*
38			* uuid_from_string() - convert a string representation of an UUID into
39			* a binary representation.
40			* See also:
41			* http://www.opengroup.org/onlinepubs/009629399/uuid_from_string.htm
42			*
43			* NOTE: The sequence field is in big-endian, while the time fields are in
44			* native byte order.
45			*/
46			void
47			uuid_from_string(const char s, uuid_t u, uint32_t *status)
48			{
49			int n;
50
51			/* Short-circuit 2 special cases: NULL pointer and empty string. */
52			if (s == NULL \|\| *s == '\0') {
53			uuid_create_nil(u, status);
54			return;
55			}
56
57			/* Assume the worst. */
58			if (status != NULL)
59			*status = uuid_s_invalid_string_uuid;
60
61			/* The UUID string representation has a fixed length. */
62			if (strlen(s) != UUID_STR_LEN)
63			return;
64
65			/*
66			* We only work with "new" UUIDs. New UUIDs have the form:
67			* 01234567-89ab-cdef-0123-456789abcdef
68			* The so called "old" UUIDs, which we don't support, have the form:
69			* 0123456789ab.cd.ef.01.23.45.67.89.ab
70			*/
71			if (s[8] != '-')
72			return;
73
74			n = sscanf(s,
75			"%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx",
76			&u->time_low, &u->time_mid, &u->time_hi_and_version,
77			&u->clock_seq_hi_and_reserved, &u->clock_seq_low, &u->node[0],
78			&u->node[1], &u->node[2], &u->node[3], &u->node[4], &u->node[5]);
79
80			/* Make sure we have all conversions. */
81			if (n != 11)
82			return;
83
84			/* We have a successful scan. Check semantics... */
85			n = u->clock_seq_hi_and_reserved;
86			if ((n & 0x80) != 0x00 && /* variant 0? */
87			(n & 0xc0) != 0x80 && /* variant 1? */
88			(n & 0xe0) != 0xc0) { /* variant 2? */
89			if (status != NULL)
90			*status = uuid_s_bad_version;
91			} else {
92			if (status != NULL)
93			*status = uuid_s_ok;
94			}
95			}