NAME

       unifuzz - Emit strings designed to test Unicode handling

SYNOPSIS

       unifuzz ([option flags])

DESCRIPTION

       unifuzz  emits strings designed to test the ability of programs intended to accept Unicode
       input to handle unexpected input. These  include:  characters  from  all  Unicode  ranges,
       Private   Use   characters,  surrogates,  undefined  characters,  non-characters,  control
       characters, exotic space characters, sequences violating normalization  rules,  unexpected
       sequences  (e.g.  a  base  character from one range followed by a combining character from
       another range), and long sequences of combining characters.  It  can  also  generate  very
       long lines, strings containing embedded nulls, and ill-formed UTF-8.

COMMAND LINE FLAGS

       -b     Restrict the output to the Basic Multilingual Plane (Plane 0).

       -g     Do not emit specific characters.

       -h     Print usage information.

       -l     Emit very long lines.

       -n     Emit string with embedded nulls.

       -q     Be quiet. Omit commentary.

       -r <number>
              Set the number of random characters to emit.

       -S     Scan ranges - emit a character from each range.

       -s <seed>
              Set the seed for the random number generator.

       -u     Emit ill-formed UTF-8.

       -v     Print version information.

       The sequence of random characters is determined by a pseudorandom number generator, so the
       same sequence can be obtained by setting the seed to the same value. If  not  set  on  the
       command  line,  a seed is chosen based on the time of execution. The seed used is included
       in the output in a line of the form "Seed  =  NNNNNN"  immediately  preceding  the  random
       character sequence. Note that in order to obtain the same sequence it is necessary to keep
       the same setting for restriction of output to the BMP.

REFERENCES

       Unicode Standard, version 5.0

AUTHOR

       Bill Poser
       billposer@alum.mit.edu

LICENSE

       GNU General Public License

                                           April, 2008                                 unifuzz(1)