1 files changed, 46 insertions, 0 deletions
diff --git a/src/time/zoneinfo_ios.go b/src/time/zoneinfo_ios.go
new file mode 100644
index 0000000..044691e
--- /dev/null
+++ b/src/time/zoneinfo_ios.go
@@ -0,0 +1,46 @@
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build ios
+// +build ios
+
+package time
+
+import (
+	"runtime"
+	"syscall"
+)
+
+var zoneSources = []string{
+	getZoneRoot() + "/zoneinfo.zip",
+}
+
+func getZoneRoot() string {
+	// The working directory at initialization is the root of the
+	// app bundle: "/private/.../bundlename.app". That's where we
+	// keep zoneinfo.zip for tethered iOS builds.
+	// For self-hosted iOS builds, the zoneinfo.zip is in GOROOT.
+	roots := []string{runtime.GOROOT() + "/lib/time"}
+	wd, err := syscall.Getwd()
+	if err == nil {
+		roots = append(roots, wd)
+	}
+	for _, r := range roots {
+		var st syscall.Stat_t
+		fd, err := syscall.Open(r, syscall.O_RDONLY, 0)
+		if err != nil {
+			continue
+		}
+		defer syscall.Close(fd)
+		if err := syscall.Fstat(fd, &st); err == nil {
+			return r
+		}
+	}
+	return "/XXXNOEXIST"
+}
+
+func initLocal() {
+	// TODO(crawshaw): [NSTimeZone localTimeZone]
+	localLoc = *UTC
+}