mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-27 13:32:45 +00:00
baeef61449
Discussed with: Iain Hibbert plunky -at- rya-online -dot- net of NetBSD MFC after: 1 month
372 lines
7.2 KiB
C
372 lines
7.2 KiB
C
/*
|
|
* bluetooth.c
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (c) 2001-2009 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 != '\0' && 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);
|
|
}
|
|
|