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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/makefs/cd9660/cd9660_conversion.c	Lines:	0	46	0.0 %
Date:	2017-11-13	Branches:	0	8	0.0 %


/*	$OpenBSD: cd9660_conversion.c,v 1.2 2016/10/16 20:26:56 natano Exp $	*/
/*	$NetBSD: cd9660_conversion.c,v 1.4 2007/03/14 14:11:17 christos Exp $	*/

/*
 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
 * Perez-Rathke and Ram Vedam.  All rights reserved.
 *
 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
 * Alan Perez-Rathke and Ram Vedam.
 *
 * 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 DANIEL WATT, WALTER DEIGNAN, RYAN
 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``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 DANIEL WATT, WALTER DEIGNAN, RYAN
 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM 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.
 */
#include "cd9660.h"

#define bswap16 swap16
#define bswap32 swap32


static char cd9660_compute_gm_offset(time_t);

#if 0
static inline int
cd9660_pad_even(length)
int length;
{
	return length + (length & 0x01);
}
#endif

/*
* These can probably be implemented using a macro
*/

/* Little endian */
void
cd9660_721(uint16_t w, unsigned char *twochar)
{
#if BYTE_ORDER == BIG_ENDIAN
	w = bswap16(w);
#endif
	memcpy(twochar,&w,2);
}

void
cd9660_731(uint32_t w, unsigned char *fourchar)
{
#if BYTE_ORDER == BIG_ENDIAN
	w = bswap32(w);
#endif
	memcpy(fourchar,&w,4);
}

/* Big endian */
void
cd9660_722(uint16_t w, unsigned char *twochar)
{
#if BYTE_ORDER == LITTLE_ENDIAN
	w = bswap16(w);
#endif
	memcpy(twochar,&w,2);
}

void
cd9660_732(uint32_t w, unsigned char *fourchar)
{
#if BYTE_ORDER == LITTLE_ENDIAN
	w = bswap32(w);
#endif
	memcpy(fourchar,&w,4);
}

/**
* Convert a dword into a double endian string of eight characters
* @param int The double word to convert
* @param char* The string to write the both endian double word to - It is assumed this is allocated and at least
*		eight characters long
*/
void
cd9660_bothendian_dword(uint32_t dw, unsigned char *eightchar)
{
	uint32_t le, be;
#if BYTE_ORDER == LITTLE_ENDIAN
	le = dw;
	be = bswap32(dw);
#endif
#if BYTE_ORDER == BIG_ENDIAN
	be = dw;
	le = bswap32(dw);
#endif
	memcpy(eightchar, &le, 4);
	memcpy((eightchar+4), &be, 4);
}

/**
* Convert a word into a double endian string of four characters
* @param int The word to convert
* @param char* The string to write the both endian word to - It is assumed this is allocated and at least
*		four characters long
*/
void
cd9660_bothendian_word(uint16_t dw, unsigned char *fourchar)
{
	uint16_t le, be;
#if BYTE_ORDER == LITTLE_ENDIAN
	le = dw;
	be = bswap16(dw);
#endif
#if BYTE_ORDER == BIG_ENDIAN
	be = dw;
	le = bswap16(dw);
#endif
	memcpy(fourchar, &le, 2);
	memcpy((fourchar+2), &be, 2);
}

void
cd9660_pad_string_spaces(char *str, int len)
{
	int i;

	for (i = 0; i < len; i ++) {
		if (str[i] == '\0')
			str[i] = 0x20;
	}
}

static char
cd9660_compute_gm_offset(time_t tim)
{
	struct tm t, gm;

	(void)localtime_r(&tim, &t);
	(void)gmtime_r(&tim, &gm);
	gm.tm_year -= t.tm_year;
	gm.tm_yday -= t.tm_yday;
	gm.tm_hour -= t.tm_hour;
	gm.tm_min  -= t.tm_min;
	if (gm.tm_year < 0)
		gm.tm_yday = -1;
	else if (gm.tm_year > 0)
		gm.tm_yday = 1;

	return (char)(-(gm.tm_min + 60* (24 * gm.tm_yday + gm.tm_hour)) / 15);
}

/* Long dates: 17 characters */
void
cd9660_time_8426(unsigned char *buf, time_t tim)
{
	struct tm t;
	char temp[18];

	(void)localtime_r(&tim, &t);
	(void)snprintf(temp, sizeof(temp), "%04i%02i%02i%02i%02i%02i%02i",
		1900+(int)t.tm_year,
		(int)t.tm_mon+1,
		(int)t.tm_mday,
		(int)t.tm_hour,
		(int)t.tm_min,
		(int)t.tm_sec,
		0);
	(void)memcpy(buf, temp, 16);
	buf[16] = cd9660_compute_gm_offset(tim);
}

/* Short dates: 7 characters */
void
cd9660_time_915(unsigned char *buf, time_t tim)
{
	struct tm t;

	(void)localtime_r(&tim, &t);
	buf[0] = t.tm_year;
	buf[1] = t.tm_mon+1;
	buf[2] = t.tm_mday;
	buf[3] = t.tm_hour;
	buf[4] = t.tm_min;
	buf[5] = t.tm_sec;
	buf[6] = cd9660_compute_gm_offset(tim);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: cd9660_conversion.c,v 1.2 2016/10/16 20:26:56 natano Exp $ */
2			/* $NetBSD: cd9660_conversion.c,v 1.4 2007/03/14 14:11:17 christos Exp $ */
3
4			/*
5			* Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
6			* Perez-Rathke and Ram Vedam. All rights reserved.
7			*
8			* This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
9			* Alan Perez-Rathke and Ram Vedam.
10			*
11			* Redistribution and use in source and binary forms, with or
12			* without modification, are permitted provided that the following
13			* conditions are met:
14			* 1. Redistributions of source code must retain the above copyright
15			* notice, this list of conditions and the following disclaimer.
16			* 2. Redistributions in binary form must reproduce the above
17			* copyright notice, this list of conditions and the following
18			* disclaimer in the documentation and/or other materials provided
19			* with the distribution.
20			*
21			* THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
22			* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
23			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25			* DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
26			* GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
27			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29			* USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
30			* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31			* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
33			* OF SUCH DAMAGE.
34			*/
35			#include "cd9660.h"
36
37			#define bswap16 swap16
38			#define bswap32 swap32
39
40
41			static char cd9660_compute_gm_offset(time_t);
42
43			#if 0
44			static inline int
45			cd9660_pad_even(length)
46			int length;
47			{
48			return length + (length & 0x01);
49			}
50			#endif
51
52			/*
53			* These can probably be implemented using a macro
54			*/
55
56			/* Little endian */
57			void
58			cd9660_721(uint16_t w, unsigned char *twochar)
59			{
60			#if BYTE_ORDER == BIG_ENDIAN
61			w = bswap16(w);
62			#endif
63			memcpy(twochar,&w,2);
64			}
65
66			void
67			cd9660_731(uint32_t w, unsigned char *fourchar)
68			{
69			#if BYTE_ORDER == BIG_ENDIAN
70			w = bswap32(w);
71			#endif
72			memcpy(fourchar,&w,4);
73			}
74
75			/* Big endian */
76			void
77			cd9660_722(uint16_t w, unsigned char *twochar)
78			{
79			#if BYTE_ORDER == LITTLE_ENDIAN
80			w = bswap16(w);
81			#endif
82			memcpy(twochar,&w,2);
83			}
84
85			void
86			cd9660_732(uint32_t w, unsigned char *fourchar)
87			{
88			#if BYTE_ORDER == LITTLE_ENDIAN
89			w = bswap32(w);
90			#endif
91			memcpy(fourchar,&w,4);
92			}
93
94			/**
95			* Convert a dword into a double endian string of eight characters
96			* @param int The double word to convert
97			* @param char* The string to write the both endian double word to - It is assumed this is allocated and at least
98			* eight characters long
99			*/
100			void
101			cd9660_bothendian_dword(uint32_t dw, unsigned char *eightchar)
102			{
103			uint32_t le, be;
104			#if BYTE_ORDER == LITTLE_ENDIAN
105			le = dw;
106			be = bswap32(dw);
107			#endif
108			#if BYTE_ORDER == BIG_ENDIAN
109			be = dw;
110			le = bswap32(dw);
111			#endif
112			memcpy(eightchar, &le, 4);
113			memcpy((eightchar+4), &be, 4);
114			}
115
116			/**
117			* Convert a word into a double endian string of four characters
118			* @param int The word to convert
119			* @param char* The string to write the both endian word to - It is assumed this is allocated and at least
120			* four characters long
121			*/
122			void
123			cd9660_bothendian_word(uint16_t dw, unsigned char *fourchar)
124			{
125			uint16_t le, be;
126			#if BYTE_ORDER == LITTLE_ENDIAN
127			le = dw;
128			be = bswap16(dw);
129			#endif
130			#if BYTE_ORDER == BIG_ENDIAN
131			be = dw;
132			le = bswap16(dw);
133			#endif
134			memcpy(fourchar, &le, 2);
135			memcpy((fourchar+2), &be, 2);
136			}
137
138			void
139			cd9660_pad_string_spaces(char *str, int len)
140			{
141			int i;
142
143			for (i = 0; i < len; i ++) {
144			if (str[i] == '\0')
145			str[i] = 0x20;
146			}
147			}
148
149			static char
150			cd9660_compute_gm_offset(time_t tim)
151			{
152			struct tm t, gm;
153
154			(void)localtime_r(&tim, &t);
155			(void)gmtime_r(&tim, &gm);
156			gm.tm_year -= t.tm_year;
157			gm.tm_yday -= t.tm_yday;
158			gm.tm_hour -= t.tm_hour;
159			gm.tm_min -= t.tm_min;
160			if (gm.tm_year < 0)
161			gm.tm_yday = -1;
162			else if (gm.tm_year > 0)
163			gm.tm_yday = 1;
164
165			return (char)(-(gm.tm_min + 60* (24 * gm.tm_yday + gm.tm_hour)) / 15);
166			}
167
168			/* Long dates: 17 characters */
169			void
170			cd9660_time_8426(unsigned char *buf, time_t tim)
171			{
172			struct tm t;
173			char temp[18];
174
175			(void)localtime_r(&tim, &t);
176			(void)snprintf(temp, sizeof(temp), "%04i%02i%02i%02i%02i%02i%02i",
177			1900+(int)t.tm_year,
178			(int)t.tm_mon+1,
179			(int)t.tm_mday,
180			(int)t.tm_hour,
181			(int)t.tm_min,
182			(int)t.tm_sec,
183			0);
184			(void)memcpy(buf, temp, 16);
185			buf[16] = cd9660_compute_gm_offset(tim);
186			}
187
188			/* Short dates: 7 characters */
189			void
190			cd9660_time_915(unsigned char *buf, time_t tim)
191			{
192			struct tm t;
193
194			(void)localtime_r(&tim, &t);
195			buf[0] = t.tm_year;
196			buf[1] = t.tm_mon+1;
197			buf[2] = t.tm_mday;
198			buf[3] = t.tm_hour;
199			buf[4] = t.tm_min;
200			buf[5] = t.tm_sec;
201			buf[6] = cd9660_compute_gm_offset(tim);
202			}