ULIMIT(2)                                               ULIMIT(2)



     NAME
          ulimit - get and set user limits

     SYNOPSIS
          long ulimit (cmd, newlimit)
          int cmd;
          long newlimit;

     DESCRIPTION
          This function provides for control over process limits.  The
          cmd values available are:

          1    Get the regular file size limit of the process.  The
               limit is in units of 512-byte blocks and is inherited
               by child processes.  Files of any size can be read.

          2    Set the regular file size limit of the process to the
               value of newlimit.  Any process may decrease this
               limit, but only a process with an effective user ID of
               super-user may increase the limit.  ulimit fails and
               the limit is unchanged if a process with an effective
               user ID other than super-user attempts to increase its
               regular file size limit.  [EPERM]

          3    Get the maximum possible break value [see brk(2)].

          4    Get the maximum number of files openable by a single
               process.

     SEE ALSO
          brk(2), write(2).

     WARNING
          ulimit is effective in limiting the growth of regular files.

     DIAGNOSTICS
          Upon successful completion, a non-negative value is
          returned.  Otherwise, a value of -1 is returned and errno is
          set to indicate the error.

     ORIGIN
          AT&T V.3













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