lfanew - manipulate fat binary programs wrapped in MZ files

lfanew was written by TK Chia.

       This manual page was formatted by Stephen Kitt <skitt@debian.org> for the Debian  GNU/Linux  system  (but
       may be used by others).

                                                    20230825                                           LFANEW(1)

       By  default,  lfanew adds a .e_lfanew header field to an old-style MZ executable, so that the program can
       be used as an MS-DOS loader stub for a NE/PE executable.

       With -S ("stubify"), lfanew creates a "fat" binary by combining an MZ stub with a NE/PE payload.

       With -U ("unstubify"), lfanew extracts a NE/PE payload from a "fat" binary, removing any MZ stub.

       lfanew - manipulate fat binary programs wrapped in MZ files

lfanew can add a stub to a Portable Executable payload if  there  is  enough  RVA  space  before  the  PE
       sections  to accommodate the stub and PE headers.  PE executables generally need to be unstubified before
       a different stub can be attached.

-k      Keeps the output if an error is encountered, instead of deleting it.

       -p      Derives the stub size from .e_cp and .e_cblp, rather than from .e_lfanew.

lfanew [-k] -o <out-stub-file> <in-stub-file>
       lfanew-S [-k] [-p] -o <out-fat-file> <in-payload-file> <in-stub-file>
       lfanew-U [-k] -o <out-payload-file> <in-fat-file>