ULIMIT

NAME
     ulimit -- get and set process limits

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <ulimit.h>

     long
     ulimit(int cmd, ...);

DESCRIPTION
     The ulimit() function will get and set process limits.  Currently this is
     limited to the maximum file size.  The cmd argument is one of the following:
     
     UL_GETFSIZE  will return the maximum file size in units of 512 blocks of
                  the current process.

     UL_SETFSIZE  will attempt to set the maximum file size of the current
                  process and its children with the second argument expressed
                  as a long.

RETURN VALUES
     Upon successful completion, ulimit() returns the value requested; otherwise
     the value -1 is returned and the global variable errno is set to
     indicate the error.

ERRORS
     The ulimit() function will fail if:

     [EINVAL]           The command specified was invalid.

     [EPERM]            The limit specified to ulimit() would have raised the
                        maximum limit value, and the caller is not the superuser.
                        
SEE ALSO
     getrlimit(2)

STANDARDS
     The ulimit() function conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     The ulimit() function first appeared in FreeBSD 5.0.

BUGS
     The ulimit() function provides limited precision for setting and retrieving
     process limits.  If there is a need for greater precision than the
     type long provides, the getrlimit(2) and setrlimit(2) functions should be
     considered.

BSD                             January 4, 2003                            BSD