time Utility for working with time/dates

user/time/now.c

@@ -0,0 +1,38 @@
+#include <stdint.h>
+#include <stddef.h>
+#include <ulib.h>
+
+struct {
+  char *format;
+} TM_NOW_CONFIG = {0};
+
+static Arg ARGS[] = {
+  ARG("-fmt", ARG_STRING, &TM_NOW_CONFIG.format),
+  ARG_END(),
+};
+
+void tm_now(void) {
+  int32_t ret;
+  if ((ret = parse_args(args()+1, argslen()-1, ARGS)) < 0) {
+    uprintf("time: could not parse args: %d\n", ret);
+    return;
+  }
+
+  Time tmbuf;
+  time(&tmbuf);
+
+  if (TM_NOW_CONFIG.format == NULL) {
+    uprintf("%02u/%02u/%02u %02u:%02u:%02u\n",
+      tmbuf.day, tmbuf.month, tmbuf.year,
+      tmbuf.hour, tmbuf.minute, tmbuf.second
+    );
+    return;
+  }
+
+  if (string_strcmp(TM_NOW_CONFIG.format, "unix") == 0) {
+    timeunix_t unix = time_tounix(&tmbuf);
+    uprintf("%lu\n", unix);
+  } else {
+    uprintf("time: unknown format %s\n", TM_NOW_CONFIG.format);
+  }
+}