Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/dump/itime.c	Lines:	19	108	17.6 %
Date:	2017-11-07	Branches:	5	72	6.9 %


/*	$OpenBSD: itime.c,v 1.23 2015/12/22 21:03:58 mmcc Exp $	*/
/*	$NetBSD: itime.c,v 1.4 1997/04/15 01:09:50 lukem Exp $	*/

/*-
 * Copyright (c) 1980, 1993
 *	The Regents of the University of California.  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.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#include <sys/param.h>	/* MAXBSIZE */
#include <sys/time.h>
#include <ufs/ufs/dinode.h>

#include <protocols/dumprestore.h>

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

#include "dump.h"

struct	dumpdates **ddatev = NULL;
int	nddates = 0;
int	ddates_in = 0;
struct	dumptime *dthead = NULL;

static	void dumprecout(FILE *, struct dumpdates *);
static	int getrecord(FILE *, struct dumpdates *);
static	int makedumpdate(struct dumpdates *, char *);
static	void readdumptimes(FILE *);

void
initdumptimes(void)
{
	FILE *df;

	if ((df = fopen(dumpdates, "r")) == NULL) {
		if (errno != ENOENT) {
			quit("cannot read %s: %s\n", dumpdates,
			    strerror(errno));
			/* NOTREACHED */
		}
		/*
		 * Dumpdates does not exist, make an empty one.
		 */
		msg("WARNING: no file `%s', making an empty one\n", dumpdates);
		if ((df = fopen(dumpdates, "w")) == NULL) {
			quit("cannot create %s: %s\n", dumpdates,
			    strerror(errno));
			/* NOTREACHED */
		}
		(void) fclose(df);
		if ((df = fopen(dumpdates, "r")) == NULL) {
			quit("cannot read %s even after creating it: %s\n",
			    dumpdates, strerror(errno));
			/* NOTREACHED */
		}
	}
	(void) flock(fileno(df), LOCK_SH);
	readdumptimes(df);
	(void) fclose(df);
}

static void
readdumptimes(FILE *df)
{
	int i;
	struct	dumptime *dtwalk;

	for (;;) {
		dtwalk = calloc(1, sizeof(struct dumptime));
		if (getrecord(df, &(dtwalk->dt_value)) < 0) {
			free(dtwalk);
			break;
		}
		nddates++;
		dtwalk->dt_next = dthead;
		dthead = dtwalk;
	}

	ddates_in = 1;
	/*
	 *	arrayify the list, leaving enough room for the additional
	 *	record that we may have to add to the ddate structure
	 */
	ddatev = calloc((unsigned) (nddates + 1), sizeof(struct dumpdates *));
	dtwalk = dthead;
	for (i = nddates - 1; i >= 0; i--, dtwalk = dtwalk->dt_next)
		ddatev[i] = &dtwalk->dt_value;
}

void
getdumptime(void)
{
	struct dumpdates *ddp;
	int i;
	char *fname;

	fname = duid ? duid : disk;
#ifdef FDEBUG
	msg("Looking for name %s in dumpdates = %s for level = %c\n",
		fname, dumpdates, level);
#endif
	spcl.c_ddate = 0;
	lastlevel = '0';

	initdumptimes();
	/*
	 *	Go find the entry with the same name for a lower increment
	 *	and older date
	 */
	ITITERATE(i, ddp) {
		if ((strncmp(fname, ddp->dd_name, sizeof(ddp->dd_name)) != 0) &&
		    (strncmp(disk, ddp->dd_name, sizeof(ddp->dd_name)) != 0))
			continue;
		if (ddp->dd_level >= level)
			continue;
		if (ddp->dd_ddate <= (time_t)spcl.c_ddate)
			continue;
		spcl.c_ddate = (int64_t)ddp->dd_ddate;
		lastlevel = ddp->dd_level;
	}
}

void
putdumptime(void)
{
	FILE *df;
	struct dumpdates *dtwalk;
	int fd, i;
	char *fname;
	time_t t;

	if(uflag == 0)
		return;
	if ((df = fopen(dumpdates, "r+")) == NULL)
		quit("cannot rewrite %s: %s\n", dumpdates, strerror(errno));
	fd = fileno(df);
	(void) flock(fd, LOCK_EX);
	fname = duid ? duid : disk;
	free(ddatev);
	ddatev = NULL;
	nddates = 0;
	dthead = NULL;
	ddates_in = 0;
	readdumptimes(df);
	if (fseek(df, 0L, SEEK_SET) < 0)
		quit("fseek: %s\n", strerror(errno));
	spcl.c_ddate = 0;
	ITITERATE(i, dtwalk) {
		if ((strncmp(fname, dtwalk->dd_name,
			     sizeof(dtwalk->dd_name)) != 0) &&
		    (strncmp(disk, dtwalk->dd_name,
			     sizeof(dtwalk->dd_name)) != 0))
			continue;
		if (dtwalk->dd_level != level)
			continue;
		goto found;
	}
	/*
	 *	construct the new upper bound;
	 *	Enough room has been allocated.
	 */
	dtwalk = ddatev[nddates] = calloc(1, sizeof(struct dumpdates));
	nddates += 1;
  found:
	(void) strlcpy(dtwalk->dd_name, fname, sizeof(dtwalk->dd_name));
	dtwalk->dd_level = level;
	dtwalk->dd_ddate = (time_t)spcl.c_date;

	ITITERATE(i, dtwalk) {
		dumprecout(df, dtwalk);
	}
	if (fflush(df))
		quit("%s: %s\n", dumpdates, strerror(errno));
	if (ftruncate(fd, ftello(df)))
		quit("ftruncate (%s): %s\n", dumpdates, strerror(errno));
	(void) fclose(df);
	t = (time_t)spcl.c_date;
	msg("level %c dump on %s", level, t == 0 ? "the epoch\n" : ctime(&t));
}

static void
dumprecout(FILE *file, struct dumpdates *what)
{

	if (fprintf(file, DUMPOUTFMT,
		    what->dd_name,
		    what->dd_level,
		    ctime(&what->dd_ddate)) < 0)
		quit("%s: %s\n", dumpdates, strerror(errno));
}

int	recno;

static int
getrecord(FILE *df, struct dumpdates *ddatep)
{
	char tbuf[BUFSIZ];

	recno = 0;
	if (fgets(tbuf, sizeof(tbuf), df) == NULL)
		return(-1);
	recno++;
	if (makedumpdate(ddatep, tbuf) < 0)
		msg("Unknown intermediate format in %s, line %d\n",
			dumpdates, recno);

#ifdef FDEBUG
	msg("getrecord: %s %c %s", ddatep->dd_name, ddatep->dd_level,
	    ddatep->dd_ddate == 0 ? "the epoch\n" : ctime(&ddatep->dd_ddate));
#endif
	return(0);
}

static int
makedumpdate(struct dumpdates *ddp, char *tbuf)
{
	char un_buf[BUFSIZ], *str;
	struct tm then;

	if (sscanf(tbuf, DUMPINFMT, ddp->dd_name, &ddp->dd_level, un_buf) != 3)
		return(-1);
	str = getduid(ddp->dd_name);
	if (str != NULL) {
		strlcpy(ddp->dd_name, str, sizeof(ddp->dd_name));
		free(str);
	}
	str = strptime(un_buf, "%a %b %e %H:%M:%S %Y", &then);
	then.tm_isdst = -1;
	if (str == NULL || (*str != '\n' && *str != '\0'))
		ddp->dd_ddate = (time_t) -1;
	else
		ddp->dd_ddate = mktime(&then);
	if (ddp->dd_ddate < 0)
		return(-1);
	return(0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: itime.c,v 1.23 2015/12/22 21:03:58 mmcc Exp $ */
2			/* $NetBSD: itime.c,v 1.4 1997/04/15 01:09:50 lukem Exp $ */
3
4			/*-
5			* Copyright (c) 1980, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/param.h> /* MAXBSIZE */
34			#include <sys/time.h>
35			#include <ufs/ufs/dinode.h>
36
37			#include <protocols/dumprestore.h>
38
39			#include <errno.h>
40			#include <fcntl.h>
41			#include <stdio.h>
42			#include <time.h>
43			#include <stdlib.h>
44			#include <string.h>
45			#include <unistd.h>
46			#include <limits.h>
47
48			#include "dump.h"
49
50			struct dumpdates **ddatev = NULL;
51			int nddates = 0;
52			int ddates_in = 0;
53			struct dumptime *dthead = NULL;
54
55			static void dumprecout(FILE , struct dumpdates );
56			static int getrecord(FILE , struct dumpdates );
57			static int makedumpdate(struct dumpdates , char );
58			static void readdumptimes(FILE *);
59
60			void
61			initdumptimes(void)
62			{
63			FILE *df;
64
65	✗✓	2	if ((df = fopen(dumpdates, "r")) == NULL) {
66			if (errno != ENOENT) {
67			quit("cannot read %s: %s\n", dumpdates,
68			strerror(errno));
69			/* NOTREACHED */
70			}
71			/*
72			* Dumpdates does not exist, make an empty one.
73			*/
74			msg("WARNING: no file `%s', making an empty one\n", dumpdates);
75			if ((df = fopen(dumpdates, "w")) == NULL) {
76			quit("cannot create %s: %s\n", dumpdates,
77			strerror(errno));
78			/* NOTREACHED */
79			}
80			(void) fclose(df);
81			if ((df = fopen(dumpdates, "r")) == NULL) {
82			quit("cannot read %s even after creating it: %s\n",
83			dumpdates, strerror(errno));
84			/* NOTREACHED */
85			}
86			}
87	✓✗	3	(void) flock(fileno(df), LOCK_SH);
88		1	readdumptimes(df);
89		1	(void) fclose(df);
90		1	}
91
92			static void
93			readdumptimes(FILE *df)
94			{
95			int i;
96			struct dumptime *dtwalk;
97
98		2	for (;;) {
99		1	dtwalk = calloc(1, sizeof(struct dumptime));
100	✓✗	1	if (getrecord(df, &(dtwalk->dt_value)) < 0) {
101		1	free(dtwalk);
102			break;
103			}
104			nddates++;
105			dtwalk->dt_next = dthead;
106			dthead = dtwalk;
107			}
108
109		1	ddates_in = 1;
110			/*
111			* arrayify the list, leaving enough room for the additional
112			* record that we may have to add to the ddate structure
113			*/
114		1	ddatev = calloc((unsigned) (nddates + 1), sizeof(struct dumpdates *));
115		1	dtwalk = dthead;
116	✗✓	2	for (i = nddates - 1; i >= 0; i--, dtwalk = dtwalk->dt_next)
117			ddatev[i] = &dtwalk->dt_value;
118		1	}
119
120			void
121			getdumptime(void)
122			{
123			struct dumpdates *ddp;
124			int i;
125			char *fname;
126
127			fname = duid ? duid : disk;
128			#ifdef FDEBUG
129			msg("Looking for name %s in dumpdates = %s for level = %c\n",
130			fname, dumpdates, level);
131			#endif
132			spcl.c_ddate = 0;
133			lastlevel = '0';
134
135			initdumptimes();
136			/*
137			* Go find the entry with the same name for a lower increment
138			* and older date
139			*/
140			ITITERATE(i, ddp) {
141			if ((strncmp(fname, ddp->dd_name, sizeof(ddp->dd_name)) != 0) &&
142			(strncmp(disk, ddp->dd_name, sizeof(ddp->dd_name)) != 0))
143			continue;
144			if (ddp->dd_level >= level)
145			continue;
146			if (ddp->dd_ddate <= (time_t)spcl.c_ddate)
147			continue;
148			spcl.c_ddate = (int64_t)ddp->dd_ddate;
149			lastlevel = ddp->dd_level;
150			}
151			}
152
153			void
154			putdumptime(void)
155			{
156			FILE *df;
157			struct dumpdates *dtwalk;
158			int fd, i;
159			char *fname;
160			time_t t;
161
162			if(uflag == 0)
163			return;
164			if ((df = fopen(dumpdates, "r+")) == NULL)
165			quit("cannot rewrite %s: %s\n", dumpdates, strerror(errno));
166			fd = fileno(df);
167			(void) flock(fd, LOCK_EX);
168			fname = duid ? duid : disk;
169			free(ddatev);
170			ddatev = NULL;
171			nddates = 0;
172			dthead = NULL;
173			ddates_in = 0;
174			readdumptimes(df);
175			if (fseek(df, 0L, SEEK_SET) < 0)
176			quit("fseek: %s\n", strerror(errno));
177			spcl.c_ddate = 0;
178			ITITERATE(i, dtwalk) {
179			if ((strncmp(fname, dtwalk->dd_name,
180			sizeof(dtwalk->dd_name)) != 0) &&
181			(strncmp(disk, dtwalk->dd_name,
182			sizeof(dtwalk->dd_name)) != 0))
183			continue;
184			if (dtwalk->dd_level != level)
185			continue;
186			goto found;
187			}
188			/*
189			* construct the new upper bound;
190			* Enough room has been allocated.
191			*/
192			dtwalk = ddatev[nddates] = calloc(1, sizeof(struct dumpdates));
193			nddates += 1;
194			found:
195			(void) strlcpy(dtwalk->dd_name, fname, sizeof(dtwalk->dd_name));
196			dtwalk->dd_level = level;
197			dtwalk->dd_ddate = (time_t)spcl.c_date;
198
199			ITITERATE(i, dtwalk) {
200			dumprecout(df, dtwalk);
201			}
202			if (fflush(df))
203			quit("%s: %s\n", dumpdates, strerror(errno));
204			if (ftruncate(fd, ftello(df)))
205			quit("ftruncate (%s): %s\n", dumpdates, strerror(errno));
206			(void) fclose(df);
207			t = (time_t)spcl.c_date;
208			msg("level %c dump on %s", level, t == 0 ? "the epoch\n" : ctime(&t));
209			}
210
211			static void
212			dumprecout(FILE file, struct dumpdates what)
213			{
214
215			if (fprintf(file, DUMPOUTFMT,
216			what->dd_name,
217			what->dd_level,
218			ctime(&what->dd_ddate)) < 0)
219			quit("%s: %s\n", dumpdates, strerror(errno));
220			}
221
222			int recno;
223
224			static int
225			getrecord(FILE df, struct dumpdates ddatep)
226			{
227		2	char tbuf[BUFSIZ];
228
229		1	recno = 0;
230	✓✗	1	if (fgets(tbuf, sizeof(tbuf), df) == NULL)
231		1	return(-1);
232			recno++;
233			if (makedumpdate(ddatep, tbuf) < 0)
234			msg("Unknown intermediate format in %s, line %d\n",
235			dumpdates, recno);
236
237			#ifdef FDEBUG
238			msg("getrecord: %s %c %s", ddatep->dd_name, ddatep->dd_level,
239			ddatep->dd_ddate == 0 ? "the epoch\n" : ctime(&ddatep->dd_ddate));
240			#endif
241			return(0);
242		1	}
243
244			static int
245			makedumpdate(struct dumpdates ddp, char tbuf)
246			{
247			char un_buf[BUFSIZ], *str;
248			struct tm then;
249
250			if (sscanf(tbuf, DUMPINFMT, ddp->dd_name, &ddp->dd_level, un_buf) != 3)
251			return(-1);
252			str = getduid(ddp->dd_name);
253			if (str != NULL) {
254			strlcpy(ddp->dd_name, str, sizeof(ddp->dd_name));
255			free(str);
256			}
257			str = strptime(un_buf, "%a %b %e %H:%M:%S %Y", &then);
258			then.tm_isdst = -1;
259			if (str == NULL \|\| (str != '\n' && str != '\0'))
260			ddp->dd_ddate = (time_t) -1;
261			else
262			ddp->dd_ddate = mktime(&then);
263			if (ddp->dd_ddate < 0)
264			return(-1);
265			return(0);
266			}