int calendar_spec_to_string(const CalendarSpec *c, char **p) {
char *buf = NULL;
size_t sz = 0;
FILE *f;
int r;
assert(c);
assert(p);
f = open_memstream(&buf, &sz);
if (!f)
return -ENOMEM;
if (c->weekdays_bits > 0 && c->weekdays_bits <= BITS_WEEKDAYS) {
format_weekdays(f, c);
fputc(' ', f);
}
format_chain(f, 4, c->year, false);
fputc('-', f);
format_chain(f, 2, c->month, false);
fputc(c->end_of_month ? '~' : '-', f);
format_chain(f, 2, c->day, false);
fputc(' ', f);
format_chain(f, 2, c->hour, false);
fputc(':', f);
format_chain(f, 2, c->minute, false);
fputc(':', f);
format_chain(f, 2, c->microsecond, true);
if (c->utc)
fputs(" UTC", f);
else if (IN_SET(c->dst, 0, 1)) {
/* If daylight saving is explicitly on or off, let's show the used timezone. */
tzset();
if (!isempty(tzname[c->dst])) {
fputc(' ', f);
fputs(tzname[c->dst], f);
}
}
r = fflush_and_check(f);
if (r < 0) {
free(buf);
fclose(f);
return r;
}
fclose(f);
*p = buf;
return 0;
}
int calendar_spec_to_string(const CalendarSpec *c, char **p) {
char *buf = NULL;
size_t sz = 0;
FILE *f;
int r;
assert(c);
assert(p);
f = open_memstream(&buf, &sz);
if (!f)
return -ENOMEM;
if (c->weekdays_bits > 0 && c->weekdays_bits <= BITS_WEEKDAYS) {
format_weekdays(f, c);
fputc(' ', f);
}
format_chain(f, 4, c->year);
fputc('-', f);
format_chain(f, 2, c->month);
fputc('-', f);
format_chain(f, 2, c->day);
fputc(' ', f);
format_chain(f, 2, c->hour);
fputc(':', f);
format_chain(f, 2, c->minute);
fputc(':', f);
format_chain(f, 2, c->second);
if (c->utc)
fputs(" UTC", f);
r = fflush_and_check(f);
if (r < 0) {
free(buf);
fclose(f);
return r;
}
fclose(f);
*p = buf;
return 0;
}
int calendar_spec_to_string(const CalendarSpec *c, char **p) {
char *buf = NULL;
size_t sz = 0;
FILE *f;
assert(c);
assert(p);
f = open_memstream(&buf, &sz);
if (!f)
return -ENOMEM;
if (c->weekdays_bits > 0 && c->weekdays_bits <= 127) {
format_weekdays(f, c);
fputc(' ', f);
}
format_chain(f, 4, c->year);
fputc('-', f);
format_chain(f, 2, c->month);
fputc('-', f);
format_chain(f, 2, c->day);
fputc(' ', f);
format_chain(f, 2, c->hour);
fputc(':', f);
format_chain(f, 2, c->minute);
fputc(':', f);
format_chain(f, 2, c->second);
fflush(f);
if (ferror(f)) {
free(buf);
fclose(f);
return -ENOMEM;
}
fclose(f);
*p = buf;
return 0;
}
