Function realpathAlloc [src]

realpath, except caller must free the returned memory. On Windows, the result is encoded as WTF-8. On other platforms, the result is an opaque sequence of bytes with no particular encoding. See also Dir.realpath.

Prototype

pub fn realpathAlloc(allocator: Allocator, pathname: []const u8) ![]u8

Parameters

allocator: Allocatorpathname: []const u8

Source

  pub fn realpathAlloc(allocator: Allocator, pathname: []const u8) ![]u8 {
    // Use of max_path_bytes here is valid as the realpath function does not
    // have a variant that takes an arbitrary-size buffer.
    // TODO(#4812): Consider reimplementing realpath or using the POSIX.1-2008
    // NULL out parameter (GNU's canonicalize_file_name) to handle overelong
    // paths. musl supports passing NULL but restricts the output to PATH_MAX
    // anyway.
    var buf: [max_path_bytes]u8 = undefined;
    return allocator.dupe(u8, try posix.realpath(pathname, &buf));
}  