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 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 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 superuser
               may increase the limit.

          3    Get the maximum possible break value.  See brk(2).

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

     ERRORS
          ulimit will fail and the limit will be unchanged if the fol-
          lowing is true:

          [EPERM]   a process with an effective user ID other than su-
                    peruser attempts to increase its file size limit.

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


















     April, 1990                                                     1