1 files changed, 39 insertions, 0 deletions
diff --git a/missing_d/tzset.c b/missing_d/tzset.c
new file mode 100644
index 00000000..678ec66d
--- /dev/null
+++ b/missing_d/tzset.c
@@ -0,0 +1,39 @@
+/*
+ * tzset.c
+ *
+ * Quick and dirty emulation of tzset(), tzname[], and daylight
+ * for old BSD systems without it.
+ *
+ * Thanks to Rick Adams, rick@uunet.uu.net, for the basics.
+ *
+ * BUGS:
+ *	Totally ignores the value of the TZ environment variable.
+ */
+
+#if 0
+#include <time.h>
+#endif
+#include <sys/time.h>
+
+static char tz1[1024];
+static char tz2[1024];
+
+/* external variables */
+char *tzname[2] = {
+	tz1, tz2
+};
+int daylight;
+
+extern char *timezone();
+
+void
+tzset()
+{
+	struct timeval tp;
+	struct timezone tz;
+
+	(void) gettimeofday(&tp, &tz);
+	(void) strcpy(tz1, timezone(tz.tz_minuteswest, 0));
+	(void) strcpy(tz2, timezone(tz.tz_minuteswest, 1));
+	daylight = tz.tz_dsttime;
+}