Make improvements for Actually Portable Emacs

- Get SIGWINCH working again on the New Technology
- Correctly handle O_NOFOLLOW in open() on Windows
- Implement synthetic umask() functionality on Windows
- Do a better job managing file execute access on Windows
- Fill in `st_uid` and `st_gid` with username hash on Windows
- Munge UNICODE control pictures into control codes on Windows
- Do a better job ensuring Windows console settings are restored
- Introduce KPRINTF_LOG environment variable to log kprintf to a file

libc/intrin/strerror_wr.greg.c

@@ -21,11 +21,17 @@
 #include "libc/fmt/fmt.h"
 #include "libc/fmt/magnumstrs.internal.h"
 #include "libc/intrin/kprintf.h"
+#include "libc/intrin/strace.internal.h"
 #include "libc/macros.internal.h"
 #include "libc/nt/enum/formatmessageflags.h"
 #include "libc/nt/enum/lang.h"
 #include "libc/nt/process.h"
 #include "libc/str/str.h"
+// clang-format off
+
+#if defined(SYSDEBUG) && _NTTRACE
+dontasan dontubsan privileged
+#endif
 
 /**
  * Converts errno value to string with explicit windows errno too.
@@ -53,7 +59,7 @@ int strerror_wr(int err, uint32_t winerr, char *buf, size_t size) {
     for (; (c = *sym++); --size)
       if (size > 1) *buf++ = c;
     if (size) *buf = 0;
-  } else if (!IsWindows() || ((err == winerr || !winerr) && !wanting)) {
+  } else if (!IsWindows() /* || ((err == winerr || !winerr) && !wanting) */) {
     ksnprintf(buf, size, "%s/%d/%s", sym, err, msg);
   } else {
     if ((n = __imp_FormatMessageW(