fiu-run(1)

NAME

   fiu-run - a script to launch programs using libfiu

SYNOPSIS

   fiu-run [options] program [program arguments]

DESCRIPTION

   fiu-run  is  a  script  to  make  it  easier  to  launch programs using
   libfiu(3). It can enable  failure  points  and  start  libfiu's  remote
   control  capabilities  before starting to execute the program, avoiding
   the need to write a special launcher to inject failures.

   It is specially useful when used to inject failures in  the  POSIX/libc
   functions, because it does not require any program modifications.

   After  launching  programs  with  fiu-run,  fiu-ctrl(1)  can be used to
   enable and disable their failure points at runtme.

   For  additional  documentation,  go  to  the   project's   website   at
   http://blitiri.com.ar/p/libfiu.

OPTIONS

   -c command
          Run the given libfiu remote control command before executing the
          program (see below for reference).

   -x     Use the POSIX libfiu preload library, allows  simulate  failures
          in the POSIX and C standard library functions.

   -f ctrlpath
          Enable  remote  control  over named pipes with the given path as
          base  name,  the  process  id  will  be  appended  (defaults  to
          "$TMPDIR/fiu-ctrl", or "/tmp/fiu-ctrl" if "$TMPDIR" is not set).
          Set to "" to disable remote control over named pipes.

   -l path
          Path where to find the libfiu preload libraries. Defaults to the
          path where they were installed, so it is usually correct.

   Remote     control     commands    are    of    the    form    "command
   param1=value1,param2=value2".  Valid commands are:

   'enable name=NAME'
          Enables the NAME failure point unconditionally.

   'enable_random name=NAME,probability=P'
          Enables the NAME failure point with a probability of P.

   All of the enable*  commands  can  also  optionally  take  failnum  and
   failinfo parameters, analogous to the ones taken by the C functions.

EXAMPLES

   The  following  will  run  the  fortune(1) program simulating faults in
   read() with 5% probability (note that the -x parameter is  required  in
   this case to enable failure points in the POSIX and libc functions):

          fiu-run -x -c "enable_random name=posix/io/rw/read,probability=0.05" fortune

   By  running it multiple times you will see that sometimes it works, but
   most of the time you get different errors, resulting from the simulated
   failures.

SEE ALSO

   libfiu(3), fiu-ctrl(1).

BUGS

   If you want to report bugs, or have any questions or comments, just let
   me know at [email protected]. For more information about libfiu,
   you can go to http://blitiri.com.ar/p/libfiu.

                              16/Jun/2009                       fiu-run(1)

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