os: unset lang completely setlocale fails

This commit is contained in:
Mitchell Hashimoto
2023-09-29 13:11:07 -07:00
parent 38a7c2270b
commit d878d16779

View File

@ -35,17 +35,10 @@ pub fn ensureLocale() void {
// default.
if (std.os.getenv("LANG")) |old_lang| {
if (old_lang.len > 0) {
// The old_lang pointer can be invalidated by unsetenv so we need
// to make a copy. LANG should never be longer than 128 bytes. If
// it is, we just set it to "".
var buf: [128]u8 = undefined;
var fba = std.heap.FixedBufferAllocator.init(&buf);
const alloc = fba.allocator();
const old_copy = alloc.dupeZ(u8, old_lang) catch "";
// Unset the lang and defer to reset the copy.
// We don't need to do both of these things but we do them
// both to be sure that lang is either empty or unset completely.
_ = setenv("LANG", "", 1);
_ = unsetenv("LANG");
defer _ = setenv("LANG", old_copy.ptr, 1);
if (setlocale(LC_ALL, "")) |v| {
log.info("setlocale after unset lang result={s}", .{v});