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Power 6/32 Unix version 1.2b

.TH ULIMIT 2
.SH NAME
ulimit \- get and set user limits
.SH SYNOPSIS
.B long ulimit (cmd, newlimit)
.br
.B int cmd;
.br
.B long newlimit;
.SH DESCRIPTION
This function provides for control over process limits.
The
.I cmd\^
values
available are:
.TP 5
.B 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.
.TP 5
.B 2
Set the file size limit of the process to
the value of
.IR newlimit .
Any process may decrease this limit,
but only a process with an effective user
.SM ID
of super-user may increase the limit.
.I Ulimit\^
will fail and the limit will be unchanged if a process with an effective user
.SM ID
other than
super-user attempts to increase its file size limit.
.SM
\%[EPERM]
.TP 5
.B 3
Get the maximum possible break value.
See
.IR brk (2).
.SH "RETURN VALUE"
Upon successful completion, a non-negative value is returned.
Otherwise, a value of \-1 is returned and
.I errno\^
is set to indicate the error.
.SH SEE ALSO
brk(2), write(2).
.\"	@(#)ulimit.2	6.2 of 9/6/83

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