aboutsummaryrefslogtreecommitdiff
path: root/nis/nis_call.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /nis/nis_call.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.zip
glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
glibc-a334319f6530564d22e775935d9c91663623a1b4.tar.bz2
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'nis/nis_call.c')
-rw-r--r--nis/nis_call.c566
1 files changed, 164 insertions, 402 deletions
diff --git a/nis/nis_call.c b/nis/nis_call.c
index c571e8f..14041a1 100644
--- a/nis/nis_call.c
+++ b/nis/nis_call.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1997, 1998, 2001, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1998, 2001, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
@@ -26,15 +25,11 @@
#include <rpc/auth.h>
#include <rpcsvc/nis.h>
#include <sys/socket.h>
-#include <sys/stat.h>
-#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
-#include <bits/libc-lock.h>
#include "nis_xdr.h"
#include "nis_intern.h"
-#include <libnsl.h>
static const struct timeval RPCTIMEOUT = {10, 0};
static const struct timeval UDPTIMEOUT = {5, 0};
@@ -42,19 +37,28 @@ static const struct timeval UDPTIMEOUT = {5, 0};
extern u_short __pmap_getnisport (struct sockaddr_in *address, u_long program,
u_long version, u_int protocol);
-unsigned long int
+unsigned long
inetstr2int (const char *str)
{
- size_t j = 0;
- for (size_t i = 0; str[i] != '\0'; ++i)
- if (str[i] == '.' && __builtin_expect (++j == 4, 0))
+ char buffer[strlen (str) + 3];
+ size_t buflen;
+ size_t i, j;
+
+ buflen = stpcpy (buffer, str) - buffer;
+
+ j = 0;
+ for (i = 0; i < buflen; ++i)
+ if (buffer[i] == '.')
{
- char buffer[i + 1];
- buffer[i] = '\0';
- return inet_addr (memcpy (buffer, str, i));
+ ++j;
+ if (j == 4)
+ {
+ buffer[i] = '\0';
+ break;
+ }
}
- return inet_addr (str);
+ return inet_addr (buffer);
}
void
@@ -72,6 +76,8 @@ libnsl_hidden_def (__nisbind_destroy)
nis_error
__nisbind_next (dir_binding *bind)
{
+ u_int j;
+
if (bind->clnt != NULL)
{
if (bind->use_auth)
@@ -83,7 +89,7 @@ __nisbind_next (dir_binding *bind)
if (bind->trys >= bind->server_len)
return NIS_FAIL;
- for (u_int j = bind->current_ep + 1;
+ for (j = bind->current_ep + 1;
j < bind->server_val[bind->server_used].ep.ep_len; ++j)
if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family,
"inet") == 0)
@@ -98,7 +104,7 @@ __nisbind_next (dir_binding *bind)
if (bind->server_used >= bind->server_len)
bind->server_used = 0;
- for (u_int j = 0; j < bind->server_val[bind->server_used].ep.ep_len; ++j)
+ for (j = 0; j < bind->server_val[bind->server_used].ep.ep_len; ++j)
if (strcmp (bind->server_val[bind->server_used].ep.ep_val[j].family,
"inet") == 0)
if (bind->server_val[bind->server_used].ep.ep_val[j].proto[0] == '-')
@@ -111,79 +117,10 @@ __nisbind_next (dir_binding *bind)
}
libnsl_hidden_def (__nisbind_next)
-static struct ckey_cache_entry
-{
- struct in_addr inaddr;
- in_port_t port;
- unsigned int protocol;
- des_block ckey;
-} *ckey_cache;
-static size_t ckey_cache_size;
-static size_t ckey_cache_allocated;
-static pid_t ckey_cache_pid;
-static uid_t ckey_cache_euid;
-__libc_lock_define_initialized (static, ckey_cache_lock)
-
-static bool_t
-get_ckey (des_block *ckey, struct sockaddr_in *addr, unsigned int protocol)
-{
- size_t i;
- pid_t pid = getpid ();
- uid_t euid = geteuid ();
- bool_t ret = FALSE;
-
- __libc_lock_lock (ckey_cache_lock);
-
- if (ckey_cache_pid != pid || ckey_cache_euid != euid)
- {
- ckey_cache_size = 0;
- ckey_cache_pid = pid;
- ckey_cache_euid = euid;
- }
-
- for (i = 0; i < ckey_cache_size; ++i)
- if (ckey_cache[i].port == addr->sin_port
- && ckey_cache[i].protocol == protocol
- && memcmp (&ckey_cache[i].inaddr, &addr->sin_addr,
- sizeof (addr->sin_addr)) == 0)
- {
- *ckey = ckey_cache[i].ckey;
- ret = TRUE;
- break;
- }
-
- if (!ret && key_gendes (ckey) >= 0)
- {
- ret = TRUE;
- /* Don't grow the cache indefinitely. */
- if (ckey_cache_size == 256)
- ckey_cache_size = 0;
- if (ckey_cache_size == ckey_cache_allocated)
- {
- size_t size = ckey_cache_allocated ? ckey_cache_allocated * 2 : 16;
- struct ckey_cache_entry *new_cache
- = realloc (ckey_cache, size * sizeof (*ckey_cache));
- if (new_cache != NULL)
- {
- ckey_cache = new_cache;
- ckey_cache_allocated = size;
- }
- }
- ckey_cache[ckey_cache_size].inaddr = addr->sin_addr;
- ckey_cache[ckey_cache_size].port = addr->sin_port;
- ckey_cache[ckey_cache_size].protocol = protocol;
- ckey_cache[ckey_cache_size++].ckey = *ckey;
- }
-
- __libc_lock_unlock (ckey_cache_lock);
- return ret;
-}
-
nis_error
__nisbind_connect (dir_binding *dbp)
{
nis_server *serv;
- u_short port;
if (dbp == NULL)
return NIS_FAIL;
@@ -196,17 +133,14 @@ __nisbind_connect (dir_binding *dbp)
dbp->addr.sin_addr.s_addr =
inetstr2int (serv->ep.ep_val[dbp->current_ep].uaddr);
- if (dbp->addr.sin_addr.s_addr == INADDR_NONE)
+ if (dbp->addr.sin_addr.s_addr == 0)
return NIS_FAIL;
/* Check, if the host is online and rpc.nisd is running. Much faster
then the clnt*_create functions: */
- port = __pmap_getnisport (&dbp->addr, NIS_PROG, NIS_VERSION,
- dbp->use_udp ? IPPROTO_UDP : IPPROTO_TCP);
- if (port == 0)
+ if (__pmap_getnisport (&dbp->addr, NIS_PROG, NIS_VERSION, IPPROTO_UDP) == 0)
return NIS_RPCERROR;
- dbp->addr.sin_port = htons (port);
dbp->socket = RPC_ANYSOCK;
if (dbp->use_udp)
dbp->clnt = clntudp_create (&dbp->addr, NIS_PROG, NIS_VERSION,
@@ -229,21 +163,23 @@ __nisbind_connect (dir_binding *dbp)
{
char netname[MAXNETNAMELEN + 1];
char *p;
- des_block ckey;
- p = stpcpy (netname, "unix@");
+ p = stpcpy (netname, "unix.");
strncpy (p, serv->name, MAXNETNAMELEN - 5);
netname[MAXNETNAMELEN] = '\0';
- dbp->clnt->cl_auth = NULL;
- if (get_ckey (&ckey, &dbp->addr,
- dbp->use_udp ? IPPROTO_UDP : IPPROTO_TCP))
- dbp->clnt->cl_auth =
- authdes_pk_create (netname, &serv->pkey, 300, NULL, &ckey);
+ // XXX What is this supposed to do? If we really want to replace
+ // XXX the first dot, then we might as well use unix@ as the
+ // XXX prefix string. --drepper
+ p = strchr (netname, '.');
+ *p = '@';
+ dbp->clnt->cl_auth =
+ authdes_pk_create (netname, &serv->pkey, 300, NULL, NULL);
if (!dbp->clnt->cl_auth)
dbp->clnt->cl_auth = authunix_create_default ();
}
else
dbp->clnt->cl_auth = authunix_create_default ();
+ dbp->use_auth = TRUE;
}
return NIS_SUCCESS;
@@ -252,8 +188,7 @@ libnsl_hidden_def (__nisbind_connect)
nis_error
__nisbind_create (dir_binding *dbp, const nis_server *serv_val,
- unsigned int serv_len, unsigned int server_used,
- unsigned int current_ep, unsigned int flags)
+ unsigned int serv_len, unsigned int flags)
{
dbp->clnt = NULL;
@@ -279,15 +214,10 @@ __nisbind_create (dir_binding *dbp, const nis_server *serv_val,
dbp->trys = 1;
dbp->class = -1;
- if (server_used == ~0)
- {
- if (__nis_findfastest (dbp) < 1)
- return NIS_NAMEUNREACHABLE;
- }
- else
+ if (__nis_findfastest (dbp) < 1)
{
- dbp->server_used = server_used;
- dbp->current_ep = current_ep;
+ __nisbind_destroy (dbp);
+ return NIS_NAMEUNREACHABLE;
}
return NIS_SUCCESS;
@@ -339,7 +269,6 @@ __do_niscall3 (dir_binding *dbp, u_long prog, xdrproc_t xargs, caddr_t req,
|| ((nis_result *)resp)->status == NIS_NOSUCHNAME
|| ((nis_result *)resp)->status == NIS_NOT_ME)
{
- next_server:
if (__nisbind_next (dbp) == NIS_SUCCESS)
{
while (__nisbind_connect (dbp) != NIS_SUCCESS)
@@ -357,14 +286,38 @@ __do_niscall3 (dir_binding *dbp, u_long prog, xdrproc_t xargs, caddr_t req,
if (((fd_result *)resp)->status == NIS_SYSTEMERROR
|| ((fd_result *)resp)->status == NIS_NOSUCHNAME
|| ((fd_result *)resp)->status == NIS_NOT_ME)
- goto next_server;
+ {
+ if (__nisbind_next (dbp) == NIS_SUCCESS)
+ {
+ while (__nisbind_connect (dbp) != NIS_SUCCESS)
+ {
+ if (__nisbind_next (dbp) != NIS_SUCCESS)
+ return NIS_SUCCESS;
+ }
+ }
+ else
+ break; /* No more servers to search in */
+ goto again;
+ }
break;
case NIS_DUMPLOG: /* log_result */
case NIS_DUMP:
if (((log_result *)resp)->lr_status == NIS_SYSTEMERROR
|| ((log_result *)resp)->lr_status == NIS_NOSUCHNAME
|| ((log_result *)resp)->lr_status == NIS_NOT_ME)
- goto next_server;
+ {
+ if (__nisbind_next (dbp) == NIS_SUCCESS)
+ {
+ while (__nisbind_connect (dbp) != NIS_SUCCESS)
+ {
+ if (__nisbind_next (dbp) != NIS_SUCCESS)
+ return NIS_SUCCESS;
+ }
+ }
+ else
+ break; /* No more servers to search in */
+ goto again;
+ }
break;
default:
break;
@@ -376,8 +329,6 @@ __do_niscall3 (dir_binding *dbp, u_long prog, xdrproc_t xargs, caddr_t req,
return retcode;
}
-libnsl_hidden_def (__do_niscall3)
-
nis_error
__do_niscall2 (const nis_server *server, u_int server_len, u_long prog,
@@ -390,7 +341,7 @@ __do_niscall2 (const nis_server *server, u_int server_len, u_long prog,
if (flags & MASTER_ONLY)
server_len = 1;
- status = __nisbind_create (&dbp, server, server_len, ~0, ~0, flags);
+ status = __nisbind_create (&dbp, server, server_len, flags);
if (status != NIS_SUCCESS)
return status;
@@ -422,18 +373,14 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
case HIGHER_NAME:
{ /* We need data from a parent domain */
directory_obj *obj;
- const char *ndomain = __nis_domain_of (dir->do_name);
+ char ndomain [strlen (name) + 3];
+
+ nis_domain_of_r (dir->do_name, ndomain, sizeof (ndomain));
/* The root server of our domain is a replica of the parent
domain ! (Now I understand why a root server must be a
replica of the parent domain) */
fd_res = __nis_finddirectory (dir, ndomain);
- if (fd_res == NULL)
- {
- nis_free_directory (dir);
- *status = NIS_NOMEMORY;
- return NULL;
- }
*status = fd_res->status;
if (fd_res->status != NIS_SUCCESS)
{
@@ -441,33 +388,36 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
__free_fdresult (fd_res);
return dir;
}
- nis_free_directory (dir);
obj = calloc (1, sizeof (directory_obj));
- if (obj == NULL)
- {
- __free_fdresult (fd_res);
- *status = NIS_NOMEMORY;
- return NULL;
- }
xdrmem_create (&xdrs, fd_res->dir_data.dir_data_val,
fd_res->dir_data.dir_data_len, XDR_DECODE);
_xdr_directory_obj (&xdrs, obj);
xdr_destroy (&xdrs);
__free_fdresult (fd_res);
-
- /* We have found a NIS+ server serving ndomain, now
- let us search for "name" */
- return rec_dirsearch (name, obj, status);
+ if (obj != NULL)
+ {
+ /* We have found a NIS+ server serving ndomain, now
+ let us search for "name" */
+ nis_free_directory (dir);
+ return rec_dirsearch (name, obj, status);
+ }
+ else
+ {
+ /* Ups, very bad. Are we already the root server ? */
+ nis_free_directory (dir);
+ return NULL;
+ }
}
- break;
+ break;
case LOWER_NAME:
{
directory_obj *obj;
size_t namelen = strlen (name);
char leaf[namelen + 3];
char domain[namelen + 3];
- const char *ndomain;
+ char ndomain[namelen + 3];
char *cp;
+ u_int run = 0;
strcpy (domain, name);
@@ -479,22 +429,23 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
return NULL;
}
nis_leaf_of_r (domain, leaf, sizeof (leaf));
- ndomain = __nis_domain_of (domain);
- memmove (domain, ndomain, strlen (ndomain) + 1);
+ nis_domain_of_r (domain, ndomain, sizeof (ndomain));
+ strcpy (domain, ndomain);
+ ++run;
}
while (nis_dir_cmp (domain, dir->do_name) != SAME_NAME);
- cp = rawmemchr (leaf, '\0');
+ if (run == 1)
+ {
+ /* We have found the directory above. Use it. */
+ return dir;
+ }
+
+ cp = strchr (leaf, '\0');
*cp++ = '.';
strcpy (cp, domain);
fd_res = __nis_finddirectory (dir, leaf);
- if (fd_res == NULL)
- {
- nis_free_directory (dir);
- *status = NIS_NOMEMORY;
- return NULL;
- }
*status = fd_res->status;
if (fd_res->status != NIS_SUCCESS)
{
@@ -502,24 +453,21 @@ rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status)
__free_fdresult (fd_res);
return dir;
}
- nis_free_directory (dir);
- obj = calloc (1, sizeof(directory_obj));
- if (obj == NULL)
+ obj = calloc(1, sizeof(directory_obj));
+ xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val,
+ fd_res->dir_data.dir_data_len, XDR_DECODE);
+ _xdr_directory_obj(&xdrs, obj);
+ xdr_destroy(&xdrs);
+ __free_fdresult (fd_res);
+ if (obj != NULL)
{
- __free_fdresult (fd_res);
- *status = NIS_NOMEMORY;
- return NULL;
+ /* We have found a NIS+ server serving ndomain, now
+ let us search for "name" */
+ nis_free_directory (dir);
+ return rec_dirsearch (name, obj, status);
}
- xdrmem_create (&xdrs, fd_res->dir_data.dir_data_val,
- fd_res->dir_data.dir_data_len, XDR_DECODE);
- _xdr_directory_obj (&xdrs, obj);
- xdr_destroy (&xdrs);
- __free_fdresult (fd_res);
- /* We have found a NIS+ server serving ndomain, now
- let us search for "name" */
- return rec_dirsearch (name, obj, status);
}
- break;
+ break;
case BAD_NAME:
nis_free_directory (dir);
*status = NIS_BADNAME;
@@ -538,26 +486,24 @@ first_shoot (const_nis_name name, directory_obj *dir)
directory_obj *obj = NULL;
fd_result *fd_res;
XDR xdrs;
+ char domain[strlen (name) + 3];
if (nis_dir_cmp (name, dir->do_name) == SAME_NAME)
return dir;
- fd_res = __nis_finddirectory (dir, name);
- if (fd_res == NULL)
- return NULL;
+ nis_domain_of_r (name, domain, sizeof (domain));
+
+ if (nis_dir_cmp (domain, dir->do_name) == SAME_NAME)
+ return dir;
+
+ fd_res = __nis_finddirectory (dir, domain);
if (fd_res->status == NIS_SUCCESS
&& (obj = calloc (1, sizeof (directory_obj))) != NULL)
{
- xdrmem_create (&xdrs, fd_res->dir_data.dir_data_val,
- fd_res->dir_data.dir_data_len, XDR_DECODE);
+ xdrmem_create(&xdrs, fd_res->dir_data.dir_data_val,
+ fd_res->dir_data.dir_data_len, XDR_DECODE);
_xdr_directory_obj (&xdrs, obj);
xdr_destroy (&xdrs);
-
- if (strcmp (dir->do_name, obj->do_name) != 0)
- {
- nis_free_directory (obj);
- obj = NULL;
- }
}
__free_fdresult (fd_res);
@@ -568,272 +514,88 @@ first_shoot (const_nis_name name, directory_obj *dir)
return obj;
}
-static struct nis_server_cache
-{
- int search_parent;
- int uses;
- unsigned int size;
- unsigned int server_used;
- unsigned int current_ep;
- time_t expires;
- char name[];
-} *nis_server_cache[16];
-static time_t nis_cold_start_mtime;
-__libc_lock_define_initialized (static, nis_server_cache_lock)
-
-static directory_obj *
-nis_server_cache_search (const_nis_name name, int search_parent,
- unsigned int *server_used, unsigned int *current_ep,
- struct timeval *now)
-{
- directory_obj *ret = NULL;
- int i;
- char *addr;
- XDR xdrs;
- struct stat64 st;
-
- if (stat64 ("/var/nis/NIS_COLD_START", &st) < 0)
- st.st_mtime = nis_cold_start_mtime + 1;
-
- __libc_lock_lock (nis_server_cache_lock);
-
- for (i = 0; i < 16; ++i)
- if (nis_server_cache[i] == NULL)
- continue;
- else if (st.st_mtime != nis_cold_start_mtime
- || now->tv_sec > nis_server_cache[i]->expires)
- {
- free (nis_server_cache[i]);
- nis_server_cache[i] = NULL;
- }
- else if (nis_server_cache[i]->search_parent == search_parent
- && strcmp (nis_server_cache[i]->name, name) == 0)
- {
- ret = calloc (1, sizeof (directory_obj));
- if (ret == NULL)
- break;
-
- addr = rawmemchr (nis_server_cache[i]->name, '\0') + 8;
- addr = (char *) ((uintptr_t) addr & ~(uintptr_t) 7);
- xdrmem_create (&xdrs, addr, nis_server_cache[i]->size, XDR_DECODE);
- if (!_xdr_directory_obj (&xdrs, ret))
- {
- xdr_destroy (&xdrs);
- free (ret);
- ret = NULL;
- free (nis_server_cache[i]);
- nis_server_cache[i] = NULL;
- break;
- }
- xdr_destroy (&xdrs);
- *server_used = nis_server_cache[i]->server_used;
- *current_ep = nis_server_cache[i]->current_ep;
- break;
- }
-
- nis_cold_start_mtime = st.st_mtime;
-
- __libc_lock_unlock (nis_server_cache_lock);
- return ret;
-}
-
-static void
-nis_server_cache_add (const_nis_name name, int search_parent,
- directory_obj *dir, unsigned int server_used,
- unsigned int current_ep, struct timeval *now)
-{
- struct nis_server_cache **loc;
- struct nis_server_cache *new;
- struct nis_server_cache *old;
- int i;
- char *addr;
- unsigned int size;
- XDR xdrs;
-
- if (dir == NULL)
- return;
-
- size = xdr_sizeof ((xdrproc_t) _xdr_directory_obj, (char *) dir);
- new = calloc (1, sizeof (*new) + strlen (name) + 8 + size);
- if (new == NULL)
- return;
- new->search_parent = search_parent;
- new->uses = 1;
- new->expires = now->tv_sec + dir->do_ttl;
- new->size = size;
- new->server_used = server_used;
- new->current_ep = current_ep;
- addr = stpcpy (new->name, name) + 8;
- addr = (char *) ((uintptr_t) addr & ~(uintptr_t) 7);
-
- xdrmem_create(&xdrs, addr, size, XDR_ENCODE);
- if (!_xdr_directory_obj (&xdrs, dir))
- {
- xdr_destroy (&xdrs);
- free (new);
- return;
- }
- xdr_destroy (&xdrs);
-
- __libc_lock_lock (nis_server_cache_lock);
-
- /* Choose which entry should be evicted from the cache. */
- loc = &nis_server_cache[0];
- if (*loc != NULL)
- for (i = 1; i < 16; ++i)
- if (nis_server_cache[i] == NULL)
- {
- loc = &nis_server_cache[i];
- break;
- }
- else if ((*loc)->uses > nis_server_cache[i]->uses
- || ((*loc)->uses == nis_server_cache[i]->uses
- && (*loc)->expires > nis_server_cache[i]->expires))
- loc = &nis_server_cache[i];
- old = *loc;
- *loc = new;
-
- __libc_lock_unlock (nis_server_cache_lock);
- free (old);
-}
-
nis_error
-__nisfind_server (const_nis_name name, int search_parent,
- directory_obj **dir, dir_binding *dbp, unsigned int flags)
+__nisfind_server (const_nis_name name, directory_obj **dir)
{
- nis_error result = NIS_SUCCESS;
- nis_error status;
- directory_obj *obj;
- struct timeval now;
- unsigned int server_used = ~0;
- unsigned int current_ep = ~0;
-
if (name == NULL)
return NIS_BADNAME;
- if (*dir != NULL)
- return NIS_SUCCESS;
-
- (void) gettimeofday (&now, NULL);
-
- if ((flags & NO_CACHE) == 0)
- *dir = nis_server_cache_search (name, search_parent, &server_used,
- &current_ep, &now);
- if (*dir != NULL)
- {
- unsigned int server_len = (*dir)->do_servers.do_servers_len;
- if (flags & MASTER_ONLY)
- {
- server_len = 1;
- if (server_used != 0)
- {
- server_used = ~0;
- current_ep = ~0;
- }
- }
- result = __nisbind_create (dbp, (*dir)->do_servers.do_servers_val,
- server_len, server_used, current_ep, flags);
- if (result != NIS_SUCCESS)
- {
- nis_free_directory (*dir);
- *dir = NULL;
- }
- return result;
- }
+#if 0
+ /* Search in local cache. In the moment, we ignore the fastest server */
+ if (!(flags & NO_CACHE))
+ dir = __nis_cache_search (name, flags, &cinfo);
+#endif
- *dir = readColdStartFile ();
if (*dir == NULL)
- /* No /var/nis/NIS_COLD_START->no NIS+ installed. */
- return NIS_UNAVAIL;
-
- /* Try at first, if servers in "dir" know our object */
- const char *search_name = name;
- if (search_parent)
- search_name = __nis_domain_of (name);
- obj = first_shoot (search_name, *dir);
- if (obj == NULL)
{
- obj = rec_dirsearch (search_name, *dir, &status);
- if (obj == NULL)
- result = status;
- }
+ nis_error status;
+ directory_obj *obj;
- if (result == NIS_SUCCESS)
- {
- unsigned int server_len = obj->do_servers.do_servers_len;
- if (flags & MASTER_ONLY)
- server_len = 1;
- result = __nisbind_create (dbp, obj->do_servers.do_servers_val,
- server_len, ~0, ~0, flags);
- if (result == NIS_SUCCESS)
+ *dir = readColdStartFile ();
+ if (*dir == NULL) /* No /var/nis/NIS_COLD_START->no NIS+ installed */
+ return NIS_UNAVAIL;
+
+ /* Try at first, if servers in "dir" know our object */
+ obj = first_shoot (name, *dir);
+ if (obj == NULL)
{
- if ((flags & MASTER_ONLY) == 0
- || obj->do_servers.do_servers_len == 1)
- {
- server_used = dbp->server_used;
- current_ep = dbp->current_ep;
- }
- if ((flags & NO_CACHE) == 0)
- nis_server_cache_add (name, search_parent, obj,
- server_used, current_ep, &now);
+ *dir = rec_dirsearch (name, *dir, &status);
+ if (*dir == NULL)
+ return status;
}
else
- {
- nis_free_directory (obj);
- obj = NULL;
- }
+ *dir = obj;
}
- *dir = obj;
-
- return result;
-}
-
-
-nis_error
-__prepare_niscall (const_nis_name name, directory_obj **dirp,
- dir_binding *bptrp, unsigned int flags)
-{
- nis_error retcode = __nisfind_server (name, 1, dirp, bptrp, flags);
- if (__builtin_expect (retcode != NIS_SUCCESS, 0))
- return retcode;
-
- do
- if (__nisbind_connect (bptrp) == NIS_SUCCESS)
- return NIS_SUCCESS;
- while (__nisbind_next (bptrp) == NIS_SUCCESS);
-
- __nisbind_destroy (bptrp);
- memset (bptrp, '\0', sizeof (*bptrp));
-
- retcode = NIS_NAMEUNREACHABLE;
- nis_free_directory (*dirp);
- *dirp = NULL;
-
- return retcode;
+ return NIS_SUCCESS;
}
-libnsl_hidden_def (__prepare_niscall)
-
nis_error
__do_niscall (const_nis_name name, u_long prog, xdrproc_t xargs,
caddr_t req, xdrproc_t xres, caddr_t resp, unsigned int flags,
nis_cb *cb)
{
+ nis_error retcode;
dir_binding bptr;
directory_obj *dir = NULL;
+ nis_server *server;
+ u_int server_len;
int saved_errno = errno;
- nis_error retcode = __prepare_niscall (name, &dir, &bptr, flags);
+ retcode = __nisfind_server (name, &dir);
+ if (retcode != NIS_SUCCESS)
+ return retcode;
+
+ if (flags & MASTER_ONLY)
+ {
+ server = dir->do_servers.do_servers_val;
+ server_len = 1;
+ }
+ else
+ {
+ server = dir->do_servers.do_servers_val;
+ server_len = dir->do_servers.do_servers_len;
+ }
+
+ retcode = __nisbind_create (&bptr, server, server_len, flags);
if (retcode == NIS_SUCCESS)
{
+ while (__nisbind_connect (&bptr) != NIS_SUCCESS)
+ {
+ if (__nisbind_next (&bptr) != NIS_SUCCESS)
+ {
+ nis_free_directory (dir);
+ __nisbind_destroy (&bptr);
+ return NIS_NAMEUNREACHABLE;
+ }
+ }
retcode = __do_niscall3 (&bptr, prog, xargs, req, xres, resp, flags, cb);
__nisbind_destroy (&bptr);
-
- nis_free_directory (dir);
}
+ nis_free_directory (dir);
+
__set_errno (saved_errno);
return retcode;