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ULIMIT(3)                  Linux Programmer's Manual                 ULIMIT(3)



NAME
       ulimit - get and set user limits

SYNOPSIS
       #include<ulimit.h>

       longulimit(int cmd,long newlimit);

DESCRIPTION
       Warning:  This  routine is obsolete. The include file is no longer pro-
       vided by glibc.  Use getrlimit(2), setrlimit(2) and sysconf(3) instead.
       For the shell command ulimit, see bash(1).

       The  ulimit  call  will  get or set some limit for the current process.
       The cmd argument can have one of the following values.

       UL_GETFSIZE
              Return the limit on the size of a file, in units of 512 bytes.

       UL_SETFSIZE
              Set the limit on the size of a file.

       3      (Not  implemented  for  Linux.)   Return  the  maximum  possible
              address of the data segment.

       4      (Implemented  but  no  symbolic  constant provided.)  Return the
              maximum number of files that the calling process can open.


RETURNVALUE
       On success, ulimit returns  a  nonnegative  value.   On  error,  -1  is
       returned, and errno is set appropriately.

ERRORS
       EPERM  A non-root process tried to increase a limit.

CONFORMINGTO
       SVID.

SEEALSO
       bash(1), getrlimit(2), setrlimit(2), sysconf(3)



Linux 2.0                         1998-06-12                         ULIMIT(3)