V10/man/adm/man3/uname.3

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.TH UNAME 3
.CT 2 sa
.SH NAME
uname \- identify machine and kernel
.SH SYNOPSIS
.nf
.B #include <utsname.h>
.PP
.B int uname(name)
.B struct utsname *name;
.fi
.SH DESCRIPTION
.I Uname
stores information identifying the current UNIX system in the
structure pointed to by
.I name.
.nf
.ft L
.ta 8n 16n
struct utsname {
	char sysname[32];
	char nodename[32];
	char release[32];
	char version[32];
};
.fi
.ft R
.PP
.I Uname
returns a null-terminated character string naming the current UNIX system
in the character array
.I sysname.
Similarly, 
.I nodename
contains the name that the system is known by on some communications network.
.I Release
and
.I version
further identify the operating system.
.SH FILES
.TP
.F /etc/whoami
.SH BUGS
Since a machine can have different names on different networks, 
.I nodename
is pretty useless.
.PP
This call is a partial simulation of one appearing in other systems.
.I Sysname
and
.I nodename
are copied from
.FR /etc/whoami ;
the other fields are meaningless.