Esempio n. 1
0
void
initdumptimes(void)
{
	FILE *df;

	if ((df = fopen(dumpdates, "r")) == NULL) {
		if (errno != ENOENT) {
			msg("WARNING: cannot read %s: %s\n", dumpdates,
			    strerror(errno));
			return;
		}
		/*
		 * 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) {
			msg("WARNING: cannot create %s: %s\n", dumpdates,
			    strerror(errno));
			return;
		}
		(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);
}
Esempio n. 2
0
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 = disk;
	free((char *)ddatev);
	ddatev = 0;
	nddates = 0;
	dthead = 0;
	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)
			continue;
		if (dtwalk->dd_level != level)
			continue;
		goto found;
	}
	/*
	 *	construct the new upper bound;
	 *	Enough room has been allocated.
	 */
	dtwalk = ddatev[nddates] =
		(struct dumpdates *)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);
	}