struct group *
getgrgid(gid_t gid)
{
struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr, _gr_group, NULL);
struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,
gr_storage, NULL);
return getgrgid_gs(gid, p_gr, gs);
}
struct group *
getgrnam(const char *name)
{
struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr,_gr_group,NULL);
struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,
gr_storage, NULL);
return getgrnam_gs(name, p_gr, gs);
}
struct group *
_getgrent_yp(int *foundyp)
{
struct group *p_gr = (struct group*)_THREAD_PRIVATE(gr, _gr_group, NULL);
struct group_storage *gs = (struct group_storage *)_THREAD_PRIVATE(gr_storage,
gr_storage, NULL);
_THREAD_PRIVATE_MUTEX_LOCK(gr);
if ((!_gr_fp && !start_gr()) || !grscan(0, 0, NULL, p_gr, gs, foundyp))
p_gr = NULL;
_THREAD_PRIVATE_MUTEX_UNLOCK(gr);
return (p_gr);
}
void
endhostent(void)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
_resp->options &= ~(RES_STAYOPEN | RES_USEVC);
res_close();
}
void
sethostent(int stayopen)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
if (_res_init(0) == -1)
return;
if (stayopen)
_resp->options |= RES_STAYOPEN | RES_USEVC;
}
static void
Perror(FILE *file, char *string, int error)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
int save = errno;
if (_resp->options & RES_DEBUG) {
fprintf(file, "res_send: %s: %s\n",
string, strerror(error));
}
errno = save;
}
char *
asctime(const struct tm *timeptr)
{
static char result[MAX_ASCTIME_BUF_SIZE];
_THREAD_PRIVATE_KEY(asctime);
char *resultp = (char *)_THREAD_PRIVATE(asctime, result, NULL);
if (resultp == NULL)
return NULL;
else
return asctime3(timeptr, resultp, sizeof(result));
}
/*
* pick appropriate nsaddr_list for use. see res_init() for initialization.
*/
static struct sockaddr *
get_nsaddr(size_t n)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
struct __res_state_ext *_res_extp = _THREAD_PRIVATE(_res_ext, _res_ext,
&_res_ext);
if (!_resp->nsaddr_list[n].sin_family) {
/*
* - _res_extp->nsaddr_list[n] holds an address that is larger
* than struct sockaddr, and
* - user code did not update _resp->nsaddr_list[n].
*/
return (struct sockaddr *)&_res_extp->nsaddr_list[n];
} else {
/*
* - user code updated _res.nsaddr_list[n], or
* - _resp->nsaddr_list[n] has the same content as
* _res_extp->nsaddr_list[n].
*/
return (struct sockaddr *)&_resp->nsaddr_list[n];
}
}
char *
getlogin(void)
{
_THREAD_PRIVATE_KEY(getlogin);
char * name = (char *)_THREAD_PRIVATE(getlogin, logname, NULL);
if ((errno = getlogin_r(name, sizeof logname)) != 0)
return NULL;
if (*name == '\0') {
errno = ENOENT; /* well? */
return NULL;
}
return name;
}
static void
Aerror(FILE *file, char *string, int error, struct sockaddr *address)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
int save = errno;
if (_resp->options & RES_DEBUG) {
if (getnameinfo(address, address->sa_len, abuf, sizeof(abuf),
pbuf, sizeof(pbuf), NI_NUMERICHOST | NI_NUMERICSERV) != 0) {
strlcpy(abuf, "?", sizeof(abuf));
strlcpy(pbuf, "?", sizeof(pbuf));
}
fprintf(file, "res_send: %s ([%s].%s): %s\n",
string, abuf, pbuf, strerror(error));
}
errno = save;
}
char *
ttyname(int fd)
{
_THREAD_PRIVATE_KEY(ttyname);
char * bufp = (char*) _THREAD_PRIVATE(ttyname, buf, NULL);
int err;
if (bufp == NULL)
return NULL;
err = ttyname_r(fd, bufp, sizeof buf);
if (err) {
errno = err;
return NULL;
}
else
return bufp;
}
/*
* Free the "asr" async resolver (or the thread-local resolver if NULL).
* Drop the reference to the current context.
*/
void
_asr_resolver_done(void *arg)
{
struct asr *asr = arg;
struct asr **priv;
if (asr == NULL) {
priv = _THREAD_PRIVATE(_asr, _asr, &_asr);
if (*priv == NULL)
return;
asr = *priv;
*priv = NULL;
}
_asr_ctx_unref(asr->a_ctx);
free(asr);
}
/* int
* res_isourserver(ina)
* looks up "ina" in _resp->ns_addr_list[]
* returns:
* 0 : not found
* >0 : found
* author:
* paul vixie, 29may94
*/
int
res_isourserver(const struct sockaddr_in *inp)
{
struct __res_state *_resp = _THREAD_PRIVATE(_res, _res, &_res);
#ifdef INET6
const struct sockaddr_in6 *in6p = (const struct sockaddr_in6 *)inp;
const struct sockaddr_in6 *srv6;
#endif
const struct sockaddr_in *srv;
int ns, ret;
ret = 0;
switch (inp->sin_family) {
#ifdef INET6
case AF_INET6:
for (ns = 0; ns < _resp->nscount; ns++) {
srv6 = (struct sockaddr_in6 *)get_nsaddr(ns);
if (srv6->sin6_family == in6p->sin6_family &&
srv6->sin6_port == in6p->sin6_port &&
srv6->sin6_scope_id == in6p->sin6_scope_id &&
(IN6_IS_ADDR_UNSPECIFIED(&srv6->sin6_addr) ||
IN6_ARE_ADDR_EQUAL(&srv6->sin6_addr,
&in6p->sin6_addr))) {
ret++;
break;
}
}
break;
#endif
case AF_INET:
for (ns = 0; ns < _resp->nscount; ns++) {
srv = (struct sockaddr_in *)get_nsaddr(ns);
if (srv->sin_family == inp->sin_family &&
srv->sin_port == inp->sin_port &&
(srv->sin_addr.s_addr == INADDR_ANY ||
srv->sin_addr.s_addr == inp->sin_addr.s_addr)) {
ret++;
break;
}
}
break;
}
return (ret);
}
/*
* Get a context from the given resolver. This takes a new reference to
* the returned context, which *must* be explicitely dropped when done
* using this context.
*/
struct asr_ctx *
_asr_use_resolver(void *arg)
{
struct asr *asr = arg;
struct asr **priv;
if (asr == NULL) {
DPRINT("using thread-local resolver\n");
priv = _THREAD_PRIVATE(_asr, _asr, &_asr);
if (*priv == NULL) {
DPRINT("setting up thread-local resolver\n");
*priv = _asr_resolver();
}
asr = *priv;
}
if (asr != NULL) {
asr_check_reload(asr);
asr_ctx_ref(asr->a_ctx);
return (asr->a_ctx);
}
return (NULL);
}