.fp 5 CW
.de Af
.ds ;G \\*(;G\\f\\$1\\$3\\f\\$2
.if !\\$4 .Af \\$2 \\$1 "\\$4" "\\$5" "\\$6" "\\$7" "\\$8" "\\$9"
..
.de aF
.ie \\$3 .ft \\$1
.el \{\
.ds ;G \&
.nr ;G \\n(.f
.Af "\\$1" "\\$2" "\\$3" "\\$4" "\\$5" "\\$6" "\\$7" "\\$8" "\\$9"
\\*(;G
.ft \\n(;G \}
..
.de L
.aF 5 \\n(.f "\\$1" "\\$2" "\\$3" "\\$4" "\\$5" "\\$6" "\\$7"
..
.de LR
.aF 5 1 "\\$1" "\\$2" "\\$3" "\\$4" "\\$5" "\\$6" "\\$7"
..
.de RL
.aF 1 5 "\\$1" "\\$2" "\\$3" "\\$4" "\\$5" "\\$6" "\\$7"
..
.de EX		\" start example
.ta 1i 2i 3i 4i 5i 6i
.PP
.RS 
.PD 0
.ft 5
.nf
..
.de EE		\" end example
.fi
.ft
.PD
.RE
.PP
..
.TH GETCWD 3
.SH NAME
getcwd \- return absolute path to current directory
.SH SYNOPSIS
.EX
#include <ast.h>

char* getcwd(char* \fIbuf\fP, size_t \fIlen\fP);
.EE
.SH DESCRIPTION
.L getcwd
copies the absolute path name of the current directory info into
.I buf
of length 
.IR len .
The return path may be longer than
.LR PATH_MAX .
If
.I "buff == 0"
then space is allocated via
.IR malloc (3)
and 
.I len
extra characters are reserved after the generated path name.
A pointer to the path name is returned, 
.L 0
on error.
.SH "SEE ALSO"
pathcd(3)