NAME
	  ulimit - Sets	and gets user limits

     LIBRARY
	  Standard C Library (libc.a)

     SYNOPSIS
	  #include <ulimit.h>
	  long ulimit (
	       int command,
	       off_t new_limit,
	       ... );


     PARAMETERS
	  command   Specifies the form of control. The command parame-
		    ter	values follow:


		    UL_GETFSIZE
			      Returns the process file size limit. The
			      limit is in units	of UBSIZE blocks (see
			      the sys/param.h file) and	is inherited
			      by child processes.  Files of any	size
			      can be read.

		    UL_SETFSIZE
			      Sets the process file size limit for
			      output operations	to the value of	the
			      new_limit	parameter, and returns the new
			      file size	limit.	Any process can
			      decrease this limit, but only a process
			      with superuser privilege can increase
			      the limit.

		    GET_GETBREAK
			      Returns the maximum possible break value
			      (described in the	brk() and sbrk() func-
			      tions).


	  new_limit Specifies the new limit.  Currently, this parame-
		    ter	is significant only for	UL_SETFSIZE.


     DESCRIPTION
	  The ulimit() function	controls process limits.

	  For the purposes of future expansion,	the ulimit() function
	  accepts a variable number of arguments, but currently	only
	  the first argument is	significant.  During access to remote
	  files, the process limits of the local node are used.
     NOTES
	  The ulimit() function	is implemented in terms	of setr-
	  limit(); therefore, the two interfaces should	not be used in
	  the same program.  The result	of doing so is undefined.


	  AES Support Level:
			 Trial use


     RETURN VALUES
	  The UL_GETFSIZE and UL_GETBREAK commands return the
	  requested process limits.  The UL_SETFSIZE command, when
	  successful, returns an arbitrary nonnegative value.  If the
	  ulimit() function fails, a value of -1 is returned and errno
	  is set to indicate the error.

     ERRORS
	  If the ulimit() function fails, the limit remains unchanged
	  and errno is be set to one of	the following values:


	  [EPERM]   A process without appropriate system privilege
		    attempts to	increase the file size limit.

	  [EINVAL]  The	command	parameter is invalid.


     RELATED INFORMATION
	  Functions: brk(2), getrlimit(2), pathconf(3),	write(2)