NAME

     bsdiff — generate a patch between two binary files

SYNOPSIS

     bsdiff ⟨oldfile⟩ ⟨newfile⟩ ⟨patchfile⟩

DESCRIPTION

     bsdiff compares ⟨oldfile⟩ to ⟨newfile⟩ and writes to ⟨patchfile⟩ a binary patch suitable for use by
     bspatch(1).  When ⟨oldfile⟩ and ⟨newfile⟩ are two versions of an executable program, the patches produced
     are on average a factor of five smaller than those produced by any other binary patch tool known to the
     author.

     bsdiff uses memory equal to 17 times the size of ⟨oldfile⟩, and requires an absolute minimum working set
     size of 8 times the size of oldfile.

SEE ALSO

     bspatch(1)

AUTHORS

     Colin Percival <cperciva@freebsd.org>