unifuzz(1) [debian man page]

unifuzz(1)						      General Commands Manual							unifuzz(1)

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 combin-
       ing 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)

RANDOM(3)						     Linux Programmer's Manual							 RANDOM(3)

NAME

       random, srandom, initstate, setstate - random number generator.

SYNOPSIS

       #include <stdlib.h>

       long int random(void);
       void srandom(unsigned int seed);
       char *initstate(unsigned int seed, char *state, size_t n);
       char *setstate(char *state);

DESCRIPTION

       The  random()  function	uses  a non-linear additive feedback random number generator employing a default table of size 31 long integers to
       return successive pseudo-random numbers in the range from 0 to RAND_MAX.  The period of this random number generator is very large, approx-
       imately 16*((2**31)-1).

       The  srandom()  function  sets  its  argument  as  the seed for a new sequence of pseudo-random integers to be returned by random().  These
       sequences are repeatable by calling srandom() with the same seed value.	If no seed value is provided, the random() function  is  automati-
       cally seeded with a value of 1.

       The  initstate() function allows a state array state to be initialized for use by random().  The size of the state array n is used by init-
       state() to decide how sophisticated a random number generator it should use -- the larger the state array, the better  the  random  numbers
       will  be.   seed  is  the  seed	for  the initialization, which specifies a starting point for the random number sequence, and provides for
       restarting at the same point.

       The setstate() function changes the state array used by the random() function.  The state array state is used for random number	generation
       until  the next call to initstate() or setstate().  state must first have been initialized using initstate() or be the result of a previous
       call of setstate().

RETURN VALUE

       The random() function returns a value between 0 and RAND_MAX.  The srandom() function returns no value.	 The  initstate()  and	setstate()
       functions return a pointer to the previous state array, or NULL on error.

ERRORS

       EINVAL A state array of less than 8 bytes was specified to initstate().

NOTES

       Current	"optimal"  values  for	the size of the state array n are 8, 32, 64, 128, and 256 bytes; other amounts will be rounded down to the
       nearest known amount.  Using less than 8 bytes will cause an error.

CONFORMING TO

       BSD 4.3

SEE ALSO

       rand(3), srand(3)

GNU
								    2000-08-20								 RANDOM(3)