ULIMIT
Section: Linux Programmer's Manual (3)
Updated: 12 June 1998
NAME
ulimit - get and set user limits
SYNOPSIS
#include <ulimit.h>
long ulimit(int cmd, long newlimit);
DESCRIPTION
Warning: This routine is obsolete. The include file is no longer
provided 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.
RETURN VALUE
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.
CONFORMING TO
SVID.
SEE ALSO
bash(1),
getrlimit(2),
setrlimit(2),
sysconf(3)