Update Bluetooth code.

Reviewed by: M. Warner Losh <imp@bsdimp.com>; John Hay <jhay@freebsd.org>
Approved by: M. Warner Losh <imp@bsdimp.com> (mentor)

4 files changed, 770 insertions, 0 deletions

diff --git a/lib/libbluetooth/Makefile b/lib/libbluetooth/Makefile
new file mode 100644
index 0000000..becd41b
--- /dev/null
+++ b/lib/libbluetooth/Makefile
@@ -0,0 +1,30 @@
+# $Id: Makefile,v 1.5 2003/07/22 18:38:04 max Exp $
+# $FreeBSD$
+
+LIB=		bluetooth
+MAN=		bluetooth.3
+
+WARNS?=		2
+CFLAGS+=	-I${.CURDIR} -I${.CURDIR}/../../sys
+
+SHLIB_MAJOR=	1
+
+SRCS=		bluetooth.c
+INCS=		bluetooth.h
+
+MLINKS+=	bluetooth.3 bt_gethostbyname.3
+MLINKS+=	bluetooth.3 bt_gethostbyaddr.3
+MLINKS+=	bluetooth.3 bt_gethostent.3
+MLINKS+=	bluetooth.3 bt_sethostent.3
+MLINKS+=	bluetooth.3 bt_endhostent.3
+
+MLINKS+=	bluetooth.3 bt_getprotobyname.3
+MLINKS+=	bluetooth.3 bt_getprotobynumber.3
+MLINKS+=	bluetooth.3 bt_getprotoent.3
+MLINKS+=	bluetooth.3 bt_setprotoent.3
+MLINKS+=	bluetooth.3 bt_endprotoent.3
+
+MLINKS+=	bluetooth.3 bt_ntoa.3
+MLINKS+=	bluetooth.3 bt_aton.3
+
+.include <bsd.lib.mk>
diff --git a/lib/libbluetooth/bluetooth.3 b/lib/libbluetooth/bluetooth.3
new file mode 100644
index 0000000..5980027
--- /dev/null
+++ b/lib/libbluetooth/bluetooth.3
@@ -0,0 +1,293 @@
+.\" Copyright (c) 2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+.\"
+.\" $Id: bluetooth.3,v 1.5 2003/05/20 23:04:30 max Exp $
+.\" $FreeBSD$
+.\"
+.Dd May 7, 2003
+.Dt BLUETOOTH 3
+.Os
+.Sh NAME
+.Nm bt_gethostbyname ,
+.Nm bt_gethostbyaddr ,
+.Nm bt_gethostent ,
+.Nm bt_sethostent ,
+.Nm bt_endhostent
+.Nd get Bluetooth host entry
+.Pp
+.Nm bt_getprotobyname ,
+.Nm bt_getprotobynumber ,
+.Nm bt_getprotoent ,
+.Nm bt_setprotoent ,
+.Nm bt_endprotoent
+.Nd get Bluetooth Protocol Service Multiplexor entry
+.Pp
+.Nm bt_aton ,
+.Nm bt_ntoa
+.Nd Bluetooth address manipulation routines
+.Sh LIBRARY
+.Lb libbluetooth
+.Sh SYNOPSIS
+.In bluetooth.h
+.Ft struct hostent *
+.Fn bt_gethostbyname "const char *name"
+.Ft struct hostent *
+.Fn bt_gethostbyaddr "const char *addr" "int len" "int type"
+.Ft struct hostent *
+.Fn bt_gethostent void
+.Ft void
+.Fn bt_sethostent "int stayopen"
+.Ft void
+.Fn bt_endhostent void
+.Ft struct protoent *
+.Fn bt_getprotobyname "const char *name"
+.Ft struct protoent *
+.Fn bt_getprotobynumber "int proto"
+.Ft struct protoent *
+.Fn bt_getprotoent void
+.Ft void
+.Fn bt_setprotoent "int stayopen"
+.Ft void
+.Fn bt_endprotoent void
+.Ft int
+.Fn bt_aton "const char *str" "bdaddr_t *ba"
+.Ft const char *
+.Fn bt_ntoa "const bdaddr_t *ba" "char *str"
+.Sh DESCRIPTION
+The
+.Fn bt_gethostent ,
+.Fn bt_gethostbyname
+and
+.Fn bt_gethostbyaddr
+functions
+each return a pointer to an object with the
+.Vt hostent
+structure describing a Bluetooth host
+referenced by name or by address, respectively.
+.Pp
+The
+.Fa name
+argument passed to
+.Fn bt_gethostbyname
+should point to a
+.Dv NUL Ns -terminated
+hostname.
+The
+.Fa addr
+argument passed to
+.Fn bt_gethostbyaddr
+should point to an address which is
+.Fa len
+bytes long,
+in binary form
+(i.e. not an Bluetooth BD_ADDR in human readable
+.Tn ASCII
+form).
+The
+.Fa type
+argument specifies the address family of this address and must be set to
+.Dv AF_BLUETOOTH .
+.Pp
+The structure returned contains the information obtained from a line in
+.Pa /etc/bluetooth/hosts
+file.
+.Pp
+The
+.Fn bt_sethostent
+function controls whether
+.Pa /etc/bluetooth/hosts
+file should stay open after each call to
+.Fn bt_gethostbyname
+or
+.Fn bt_gethostbyaddr .
+If the
+.Fa stayopen
+flag is non-zero, the file will not be closed.
+.Pp
+The
+.Fn bt_endhostent
+function closes the
+.Pa /etc/bluetooth/hosts
+file.
+.Pp
+The
+.Fn bt_getprotoent ,
+.Fn bt_getprotobyname
+and
+.Fn bt_getprotobynumber
+functions each return a pointer to an object with the
+.Vt protoent
+structure describing a Bluetooth Protocol Service Multiplexor referenced
+by name or number, respectively.
+.Pp
+The
+.Fa name
+argument passed to
+.Fn bt_getprotobyname
+should point to a
+.Dv NUL Ns -terminated
+Bluetooth Protocol Service Multiplexor name.
+The
+.Fa proto
+argument passed to
+.Fn bt_getprotobynumber
+should have numeric value of the desired Bluetooth Protocol Service Multiplexor.
+.Pp
+The structure returned contains the information obtained from a line in
+.Pa /etc/bluetooth/protocols
+file.
+.Pp
+The
+.Fn bt_setprotoent
+function controls whether
+.Pa /etc/bluetooth/protocols
+file should stay open after each call to
+.Fn bt_getprotobyname
+or
+.Fn bt_getprotobynumber .
+If the
+.Fa stayopen
+flag is non-zero, the file will not be closed.
+.Pp
+The
+.Fn bt_endprotoent
+function closes the
+.Pa /etc/bluetooth/protocols
+file.
+.Pp
+The
+.Fn bt_aton
+routine interprets the specified character string as a Bluetooth address,
+placing the address into the structure provided.
+It returns 1 if the string was successfully interpreted,
+or 0 if the string is invalid.
+.Pp
+The routine
+.Fn bt_ntoa
+takes a Bluetooth address and places an
+.Tn ASCII
+string representing the address into the buffer provided.
+It is up to the caller to ensure that provided buffer has enough space.
+If no buffer was provided then internal static buffer will be used.
+.Sh FILES
+.Bl -tag -width /etc/bluetooth/hosts -compact
+.It Pa /etc/bluetooth/hosts
+.It Pa /etc/bluetooth/protocols
+.El
+.Sh EXAMPLES
+Print out the hostname associated with a specific BD_ADDR:
+.Bd -literal -offset indent
+const char *bdstr = "00:01:02:03:04:05";
+bdaddr_t bd;
+struct hostent *hp;
+
+if (!bt_aton(bdstr, &bd))
+	errx(1, "can't parse BD_ADDR %s", bdstr);
+
+if ((hp = bt_gethostbyaddr((const char *)&bd,
+    sizeof(bd), AF_BLUETOOTH)) == NULL)
+	errx(1, "no name associated with %s", bdstr);
+
+printf("name associated with %s is %s\en", bdstr, hp->h_name);
+.Ed
+.Sh DIAGNOSTICS
+Error return status from
+.Fn bt_gethostent ,
+.Fn bt_gethostbyname
+and
+.Fn bt_gethostbyaddr
+is indicated by return of a
+.Dv NULL
+pointer.
+The external integer
+.Va h_errno
+may then be checked to see whether this is a temporary failure
+or an invalid or unknown host.
+The routine
+.Fn herror
+can be used to print an error message describing the failure.
+If its argument
+.Fa string
+is
+.Pf non- Dv NULL ,
+it is printed, followed by a colon and a space.
+The error message is printed with a trailing newline.
+.Pp
+The variable
+.Va h_errno
+can have the following values:
+.Bl -tag -width HOST_NOT_FOUND
+.It Dv HOST_NOT_FOUND
+No such host is known.
+.It Dv NO_RECOVERY
+Some unexpected server failure was encountered.
+This is a non-recoverable error.
+.El
+.Pp
+The
+.Fn bt_getprotoent ,
+.Fn bt_getprotobyname
+and
+.Fn bt_getprotobynumber
+return Null pointer (0) on
+.Dv EOF
+or error.
+.Sh SEE ALSO
+.Xr gethostbyaddr 3 ,
+.Xr gethostbyname 3 ,
+.Xr getprotobyaddr 3 ,
+.Xr getprotobynumber 3 ,
+.Xr herror 3 ,
+.Xr inet_aton 3 ,
+.Xr inet_ntoa 3
+.Sh CAVEAT
+The
+.Fn bt_gethostent
+function reads the next line of
+.Pa /etc/bluetooth/hosts ,
+opening the file if necessary.
+.Pp
+The
+.Fn bt_sethostent
+function opens and/or rewinds the
+.Pa /etc/bluetooth/hosts
+file.
+.Pp
+The
+.Fn bt_getprotoent
+function reads the next line of
+.Pa /etc/bluetooth/protocols ,
+opening the file if necessary.
+.Pp
+The
+.Fn bt_setprotoent
+function opens and/or rewinds the
+.Pa /etc/bluetooth/protocols
+file.
+.Sh BUGS
+These functions use static data storage;
+if the data is needed for future use, it should be
+copied before any subsequent calls overwrite it.
+.Sh AUTHORS
+.An Maksim Yevmenkin Aq m_evmenkin@yahoo.com
diff --git a/lib/libbluetooth/bluetooth.c b/lib/libbluetooth/bluetooth.c
new file mode 100644
index 0000000..4678509
--- /dev/null
+++ b/lib/libbluetooth/bluetooth.c
@@ -0,0 +1,369 @@
+/*
+ * bluetooth.c
+ *
+ * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id: bluetooth.c,v 1.3 2003/05/20 23:04:30 max Exp $
+ * $FreeBSD$
+ */
+
+#include <bluetooth.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define _PATH_BT_HOSTS		"/etc/bluetooth/hosts"
+#define _PATH_BT_PROTOCOLS	"/etc/bluetooth/protocols"
+#define MAXALIASES		 35
+
+static FILE		*hostf = NULL;
+static int		 host_stayopen = 0;
+static struct hostent	 host;
+static bdaddr_t		 host_addr;
+static char		*host_addr_ptrs[2];
+static char		*host_aliases[MAXALIASES];
+
+static FILE		*protof = NULL;
+static int		 proto_stayopen = 0;
+static struct protoent	 proto;
+static char		*proto_aliases[MAXALIASES];
+
+static char		 buf[BUFSIZ + 1];
+
+static int bt_hex_byte   (char const *str);
+static int bt_hex_nibble (char nibble);
+
+struct hostent *
+bt_gethostbyname(char const *name)
+{
+	struct hostent	*p;
+	char		**cp;
+
+	bt_sethostent(host_stayopen);
+	while ((p = bt_gethostent()) != NULL) {
+		if (strcasecmp(p->h_name, name) == 0)
+			break;
+		for (cp = p->h_aliases; *cp != 0; cp++)
+			if (strcasecmp(*cp, name) == 0)
+				goto found;
+	}
+found:
+	bt_endhostent();
+
+	return (p);
+}
+
+struct hostent *
+bt_gethostbyaddr(char const *addr, int len, int type)
+{
+	struct hostent	*p;
+
+	if (type != AF_BLUETOOTH || len != sizeof(bdaddr_t)) {
+		h_errno = NO_RECOVERY;
+		return (NULL);
+	}
+
+	bt_sethostent(host_stayopen);
+	while ((p = bt_gethostent()) != NULL)
+		if (p->h_addrtype == type && bcmp(p->h_addr, addr, len) == 0)
+			break;
+	bt_endhostent();
+
+	return (p);
+}
+
+struct hostent *
+bt_gethostent(void)
+{
+	char	*p, *cp, **q;
+
+	if (hostf == NULL)
+		hostf = fopen(_PATH_BT_HOSTS, "r");
+
+	if (hostf == NULL) {
+		h_errno = NETDB_INTERNAL;
+		return (NULL);
+	}
+again:
+	if ((p = fgets(buf, sizeof(buf), hostf)) == NULL) {
+		h_errno = HOST_NOT_FOUND;
+		return (NULL);
+	}
+	if (*p == '#')
+		goto again;
+	if ((cp = strpbrk(p, "#\n")) == NULL)
+		goto again;
+	*cp = 0;
+	if ((cp = strpbrk(p, " \t")) == NULL)
+		goto again;
+	*cp++ = 0;
+	if (bt_aton(p, &host_addr) == 0) 
+		goto again;
+	host_addr_ptrs[0] = (char *) &host_addr;
+	host_addr_ptrs[1] = NULL;
+	host.h_addr_list = host_addr_ptrs;
+	host.h_length = sizeof(host_addr);
+	host.h_addrtype = AF_BLUETOOTH;
+	while (*cp == ' ' || *cp == '\t')
+		cp++;
+	host.h_name = cp;
+	q = host.h_aliases = host_aliases;
+	if ((cp = strpbrk(cp, " \t")) != NULL)
+		*cp++ = 0;
+	while (cp != NULL && *cp != 0) {
+		if (*cp == ' ' || *cp == '\t') {
+			cp++;
+			continue;
+		}
+		if (q < &host_aliases[MAXALIASES - 1])
+			*q++ = cp;
+		if ((cp = strpbrk(cp, " \t")) != NULL)
+			*cp++ = 0;
+	}
+	*q = NULL;
+	h_errno = NETDB_SUCCESS;
+
+	return (&host);
+}
+
+void
+bt_sethostent(int stayopen)
+{
+	if (hostf == NULL)
+		hostf = fopen(_PATH_BT_HOSTS, "r");
+	else
+		rewind(hostf);
+
+	host_stayopen = stayopen;
+}
+
+void
+bt_endhostent(void)
+{
+	if (hostf != NULL && host_stayopen == 0) {
+		(void) fclose(hostf);
+		hostf = NULL;
+	}
+}
+
+struct protoent *
+bt_getprotobyname(char const *name)
+{
+	struct protoent	 *p;
+	char		**cp;
+
+	bt_setprotoent(proto_stayopen);
+	while ((p = bt_getprotoent()) != NULL) {
+		if (strcmp(p->p_name, name) == 0)
+			break;
+		for (cp = p->p_aliases; *cp != 0; cp++)
+			if (strcmp(*cp, name) == 0)
+				goto found;
+	}
+found:
+	bt_endprotoent();
+
+	return (p);
+}
+
+struct protoent *
+bt_getprotobynumber(int proto)
+{
+	struct protoent	*p;
+
+	bt_setprotoent(proto_stayopen);
+	while ((p = bt_getprotoent()) != NULL)
+		if (p->p_proto == proto)
+			break;
+	bt_endprotoent();
+
+	return (p);
+}
+
+struct protoent *
+bt_getprotoent(void)
+{
+	char	*p, *cp, **q;
+
+	if (protof == NULL)
+		protof = fopen(_PATH_BT_PROTOCOLS, "r");
+
+	if (protof == NULL)
+		return (NULL);
+again:
+	if ((p = fgets(buf, sizeof(buf), protof)) == NULL)
+		return (NULL);
+	if (*p == '#')
+		goto again;
+	if ((cp = strpbrk(p, "#\n")) == NULL)
+		goto again;
+	*cp = '\0';
+	proto.p_name = p;
+	if ((cp = strpbrk(p, " \t")) == NULL)
+		goto again;
+	*cp++ = '\0';
+	while (*cp == ' ' || *cp == '\t')
+		cp++;
+	if ((p = strpbrk(cp, " \t")) != NULL)
+		*p++ = '\0';
+	proto.p_proto = atoi(cp);
+	q = proto.p_aliases = proto_aliases;
+	if (p != NULL) {
+		cp = p;
+		while (cp != NULL && *cp != 0) {
+			if (*cp == ' ' || *cp == '\t') {
+				cp++;
+				continue;
+			}
+			if (q < &proto_aliases[MAXALIASES - 1])
+				*q++ = cp;
+			if ((cp = strpbrk(cp, " \t")) != NULL)
+				*cp++ = '\0';
+		}
+	}
+	*q = NULL;
+
+	return (&proto);
+}
+
+void
+bt_setprotoent(int stayopen)
+{
+	if (protof == NULL)
+		protof = fopen(_PATH_BT_PROTOCOLS, "r");
+	else
+		rewind(protof);
+
+	proto_stayopen = stayopen;
+}
+
+void
+bt_endprotoent(void)
+{
+	if (protof != NULL) {
+		(void) fclose(protof);
+		protof = NULL;
+	}
+}
+
+char const *
+bt_ntoa(bdaddr_t const *ba, char *str)
+{
+	static char	buffer[24];
+
+	if (str == NULL)
+		str = buffer;
+
+	sprintf(str, "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
+		ba->b[5], ba->b[4], ba->b[3], ba->b[2], ba->b[1], ba->b[0]);
+
+	return (str);
+}
+
+int
+bt_aton(char const *str, bdaddr_t *ba)
+{
+	int	 i, b;
+	char	*end = NULL;
+
+	memset(ba, 0, sizeof(*ba));
+
+	for (i = 5, end = strchr(str, ':');
+	     i > 0 && *str != NULL && end != NULL;
+	     i --, str = end + 1, end = strchr(str, ':')) {
+		switch (end - str) {
+		case 1:
+			b = bt_hex_nibble(str[0]);
+			break;
+
+		case 2:
+			b = bt_hex_byte(str);
+			break;
+
+		default:
+			b = -1;
+			break;
+		}
+		
+		if (b < 0)
+			return (0);
+
+		ba->b[i] = b;
+	}
+
+	if (i != 0 || end != NULL || *str == 0)
+		return (0);
+
+	switch (strlen(str)) {
+	case 1:
+		b = bt_hex_nibble(str[0]);
+		break;
+
+	case 2:
+		b = bt_hex_byte(str);
+		break;
+
+	default:
+		b = -1;
+		break;
+	}
+
+	if (b < 0)
+		return (0);
+
+	ba->b[i] = b;
+
+	return (1);
+}
+
+static int
+bt_hex_byte(char const *str)
+{
+	int	n1, n2;
+
+	if ((n1 = bt_hex_nibble(str[0])) < 0)
+		return (-1);
+
+	if ((n2 = bt_hex_nibble(str[1])) < 0)
+		return (-1);
+
+	return ((((n1 & 0x0f) << 4) | (n2 & 0x0f)) & 0xff);
+}
+
+static int
+bt_hex_nibble(char nibble)
+{
+	if ('0' <= nibble && nibble <= '9')
+		return (nibble - '0');
+
+	if ('a' <= nibble && nibble <= 'f')
+		return (nibble - 'a' + 0xa);
+
+	if ('A' <= nibble && nibble <= 'F')
+		return (nibble - 'A' + 0xa);
+
+	return (-1);
+}
+
diff --git a/lib/libbluetooth/bluetooth.h b/lib/libbluetooth/bluetooth.h
new file mode 100644
index 0000000..516f691
--- /dev/null
+++ b/lib/libbluetooth/bluetooth.h
@@ -0,0 +1,78 @@
+/*
+ * bluetooth.h
+ *
+ * Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $Id: bluetooth.h,v 1.5 2003/09/14 23:28:42 max Exp $
+ * $FreeBSD$
+ */
+
+#ifndef _BLUETOOTH_H_
+#define _BLUETOOTH_H_
+
+#include <sys/types.h>
+#include <sys/bitstring.h>
+#include <sys/endian.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netdb.h>
+#include <netgraph/bluetooth/include/ng_hci.h>
+#include <netgraph/bluetooth/include/ng_l2cap.h>
+#include <netgraph/bluetooth/include/ng_btsocket.h>
+
+__BEGIN_DECLS
+
+/*
+ * Lunux BlueZ compatibility
+ */
+
+#define	bacmp(ba1, ba2)	memcmp((ba1), (ba2), sizeof(bdaddr_t))
+#define	bacpy(dst, src)	memcpy((dst), (src), sizeof(bdaddr_t))
+#define ba2str(ba, str)	bt_ntoa((ba), (str))
+#define str2ba(str, ba)	(bt_aton((str), (ba)) == 1? 0 : -1)
+
+/*
+ * Interface to the outside world
+ */
+
+struct hostent *  bt_gethostbyname    (char const *name);
+struct hostent *  bt_gethostbyaddr    (char const *addr, int len, int type);
+struct hostent *  bt_gethostent       (void);
+void              bt_sethostent       (int stayopen);
+void              bt_endhostent       (void);
+
+struct protoent * bt_getprotobyname   (char const *name);
+struct protoent * bt_getprotobynumber (int proto);
+struct protoent * bt_getprotoent      (void);
+void              bt_setprotoent      (int stayopen);
+void              bt_endprotoent      (void);
+
+char const *      bt_ntoa             (bdaddr_t const *ba, char *str);
+int               bt_aton             (char const *str, bdaddr_t *ba);
+
+__END_DECLS
+
+#endif /* ndef _BLUETOOTH_H_ */
+