NAME¶

lfanew - manipulate fat binary programs wrapped in MZ files

SYNOPSIS¶

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>

DESCRIPTION¶

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.

OPTIONS¶

-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.

NOTES¶

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.

AUTHORS¶

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).