fixup! mingw: ensure getcwd() reports the correct case

The return value of GetCurrentDirectoryW() upon errors is actually 0, not negative (it cannot be negative, as DWORD is an *unsigned* data type). Also, when converting from _wgetcwd(), I forgot to add errno explicitly... Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
git-for-windows · May 5, 2017 · d4696aa · d4696aa
1 parent c9743bc
commit d4696aa
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/compat/mingw.c b/compat/mingw.c
@@ -1031,8 +1031,10 @@ char *mingw_getcwd(char *pointer, int len)
 			  HANDLE, LPWSTR, DWORD, DWORD);
 	DWORD ret = GetCurrentDirectoryW(ARRAY_SIZE(cwd), cwd);
 
-	if (ret < 0 || ret >= ARRAY_SIZE(cwd))
+	if (!ret || ret >= ARRAY_SIZE(cwd)) {
+		errno = ret ? ENAMETOOLONG : err_win_to_posix(GetLastError());
 		return NULL;
+	}
 	ret = GetLongPathNameW(cwd, wpointer, ARRAY_SIZE(wpointer));
 	if (!ret && GetLastError() == ERROR_ACCESS_DENIED &&
 		INIT_PROC_ADDR(GetFinalPathNameByHandleW)) {