Add a "fork" of musl as //fusl.

fusl/src/time/getdate.c

Index: fusl/src/time/getdate.c
diff --git a/fusl/src/time/getdate.c b/fusl/src/time/getdate.c
new file mode 100644
index 0000000000000000000000000000000000000000..89f21699125655eb27b1efa780a4e6f7ef0755de
--- /dev/null
+++ b/fusl/src/time/getdate.c
@@ -0,0 +1,45 @@
+#include <time.h>
+#include <pthread.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int getdate_err;
+
+struct tm *getdate(const char *s)
+{
+	static struct tm tmbuf;
+	struct tm *ret = 0;
+	char *datemsk = getenv("DATEMSK");
+	FILE *f = 0;
+	char fmt[100], *p;
+	int cs;
+
+	pthread_setcancelstate(PTHREAD_CANCEL_DEFERRED, &cs);
+
+	if (!datemsk) {
+		getdate_err = 1;
+		goto out;
+	}
+
+	f = fopen(datemsk, "rbe");
+	if (!f) {
+		if (errno == ENOMEM) getdate_err = 6;
+		else getdate_err = 2;
+		goto out;
+	}
+
+	while (fgets(fmt, sizeof fmt, f)) {
+		p = strptime(s, fmt, &tmbuf);
+		if (p && !*p) {
+			ret = &tmbuf;
+			goto out;
+		}
+	}
+
+	getdate_err = 7;
+out:
+	if (f) fclose(f);
+	pthread_setcancelstate(cs, 0);
+	return ret;
+}