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);
}
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);
}