.SH SYNOPSIS
.nf
.B #include <sys/utsname.h>
-.PP
+.P
.BI "int uname(struct utsname *" buf );
.fi
.SH DESCRIPTION
.I utsname
struct is defined in
.IR <sys/utsname.h> :
-.PP
+.P
.in +4n
.EX
struct utsname {
};
.EE
.in
-.PP
+.P
The length of the arrays in a
.I struct utsname
is unspecified (see NOTES);
The
.I domainname
member (the NIS or YP domain name) is a GNU extension.
-.PP
+.P
The length of the fields in the struct varies.
Some operating systems
or libraries use a hardcoded 9 or 33 or 65 or 257.
.I domainname
field is set via
.BR setdomainname (2).
-.PP
+.P
Part of the utsname information is also accessible via
.IR /proc/sys/kernel/ { ostype ,
.IR hostname ,