i3status/src/print_time.c

46 lines
1.3 KiB
C
Raw Normal View History

// vim:ts=8:expandtab
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
2012-03-25 18:55:55 +00:00
#include <yajl/yajl_gen.h>
2012-04-08 12:05:47 +00:00
#include <yajl/yajl_version.h>
#include "i3status.h"
static int local_timezone_init = 0;
static const char *local_timezone = NULL;
static const char *current_timezone = NULL;
void set_timezone(const char *timezone) {
if (!local_timezone_init) {
/* First call, initialize. */
local_timezone = getenv("TZ");
local_timezone_init = 1;
}
if (timezone == NULL || timezone[0] == '\0') {
/* User wants localtime. */
timezone = local_timezone;
}
if (timezone != current_timezone) {
if (timezone) {
setenv("TZ", timezone, 1);
} else {
unsetenv("TZ");
}
tzset();
current_timezone = timezone;
}
}
void print_time(yajl_gen json_gen, char *buffer, const char *format, const char *timezone, time_t t) {
2012-03-25 18:55:55 +00:00
char *outwalk = buffer;
struct tm tm;
/* Convert time and format output. */
set_timezone(timezone);
localtime_r(&t, &tm);
outwalk += strftime(outwalk, 4095, format, &tm);
2012-03-25 18:55:55 +00:00
*outwalk = '\0';
OUTPUT_FULL_TEXT(buffer);
}