-.TH TYPES 5 "May 15, 1985"
-.UC 4
-.SH NAME
-types \- primitive system data types
-.SH SYNOPSIS
-.B #include <sys/types.h>
-.SH DESCRIPTION
-The data types defined in the include file
-are used in UNIX system code;
-some data of these types are accessible to user code:
-.PP
-.nf
-.ta \w'typedef\ \ 'u +\w'minor(x)\ \ 'u +\w' short\ \ 'u
-.so /usr/include/sys/types.h
-.fi
-.PP
-The form
-.I daddr_t
-is used for disk addresses except in an
-i-node on disk, see
-.IR fs (5).
-Times are encoded in seconds since 00:00:00 GMT, January 1, 1970.
-The major and minor parts of a device code
-specify kind and unit number of a device
-and are installation-dependent.
-Offsets are measured in bytes from the beginning of a file.
-The
-.I label_t
-variables are used to save the processor state
-while another process is running.
-.SH SEE ALSO
-fs(5), time(3), lseek(2), adb(1)
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)types.5 6.2 (Berkeley) 4/29/91
+.\"
+.Dd April 29, 1991
+.Dt TYPES 5
+.Os BSD 4
+.Sh NAME
+.Nm types
+.Nd system data types
+.Sh SYNOPSIS
+.Fd #include <sys/types.h>
+.Sh DESCRIPTION
+The file
+.Pa sys/types.h
+contains the defined data types used in the kernel (most are
+used through out the system).
+.Bd -literal
+#ifndef _TYPES_H_
+#define _TYPES_H_
+
+typedef short dev_t;
+#ifndef _POSIX_SOURCE
+ /* major part of a device */
+#define major(x) ((int)(((unsigned)(x)>>8)&0377))
+ /* minor part of a device */
+#define minor(x) ((int)((x)&0377))
+ /* make a device number */
+#define makedev(x,y) ((dev_t)(((x)<<8) | (y)))
+#endif
+
+typedef unsigned char u_char;
+typedef unsigned short u_short;
+typedef unsigned int u_int;
+typedef unsigned long u_long;
+typedef unsigned short ushort; /* Sys V compatibility */
+
+#include <machine/ansi.h>
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+#include <machine/types.h>
+#endif
+
+#ifdef _CLOCK_T_
+typedef _CLOCK_T_ clock_t;
+#undef _CLOCK_T_
+#endif
+
+#ifdef _SIZE_T_
+typedef _SIZE_T_ size_t;
+#undef _SIZE_T_
+#endif
+
+#ifdef _TIME_T_
+typedef _TIME_T_ time_t;
+#undef _TIME_T_
+#endif
+
+#ifndef _POSIX_SOURCE
+typedef struct _uquad { unsigned long val[2]; } u_quad;
+typedef struct _quad { long val[2]; } quad;
+#endif
+typedef long * qaddr_t; /* should be typedef quad * qaddr_t; */
+
+typedef long daddr_t;
+typedef char * caddr_t;
+typedef u_long ino_t;
+typedef long swblk_t;
+typedef long segsz_t;
+typedef long off_t;
+typedef u_short uid_t;
+typedef u_short gid_t;
+typedef short pid_t;
+typedef u_short nlink_t;
+typedef u_short mode_t;
+typedef u_long fixpt_t;
+
+#ifndef _POSIX_SOURCE
+#define NBBY 8 /* number of bits in a byte */
+
+/*
+ * Select uses bit masks of file descriptors in longs. These macros
+ * manipulate such bit fields (the filesystem macros use chars).
+ * FD_SETSIZE may be defined by the user, but the default here should
+ * be >= NOFILE (param.h).
+ */
+#ifndef FD_SETSIZE
+#define FD_SETSIZE 256
+#endif
+
+typedef long fd_mask;
+#define NFDBITS (sizeof(fd_mask) * NBBY) /* bits per mask */
+
+#ifndef howmany
+#define howmany(x, y) (((x)+((y)-1))/(y))
+#endif
+
+typedef struct fd_set {
+ fd_mask fds_bits[howmany(FD_SETSIZE, NFDBITS)];
+} fd_set;
+
+#define FD_SET(n, p) ((p)->fds_bits[(n)/NFDBITS] |= (1 << ((n) % NFDBITS)))
+#define FD_CLR(n, p) ((p)->fds_bits[(n)/NFDBITS] &= ~(1 << ((n) % NFDBITS)))
+#define FD_ISSET(n, p) ((p)->fds_bits[(n)/NFDBITS] & (1 << ((n) % NFDBITS)))
+#define FD_ZERO(p) bzero((char *)(p), sizeof(*(p)))
+
+#endif /* !_POSIX_SOURCE */
+#endif /* !_TYPES_H_ */
+.Ed
+.Sh SEE ALSO
+.Xr fs 5 ,
+.Xr time 3 ,
+.Xr lseek 2 ,
+.Xr adb 1
+.Sh HISTORY
+A
+.Nm
+file appeared in
+.At v7 .
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