diff options
Diffstat (limited to 'REORG.TODO/nis/nis_call.c')
| -rw-r--r-- | REORG.TODO/nis/nis_call.c | 845 |
1 files changed, 845 insertions, 0 deletions
diff --git a/REORG.TODO/nis/nis_call.c b/REORG.TODO/nis/nis_call.c new file mode 100644 index 0000000000..d4f37bfb72 --- /dev/null +++ b/REORG.TODO/nis/nis_call.c @@ -0,0 +1,845 @@ +/* Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <libintl.h> +#include <rpc/rpc.h> +#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 <libc-lock.h> + +#include "nis_xdr.h" +#include "nis_intern.h" +#include <libnsl.h> +#include <shlib-compat.h> + +static const struct timeval RPCTIMEOUT = {10, 0}; +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 +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[i + 1]; + buffer[i] = '\0'; + return inet_addr (memcpy (buffer, str, i)); + } + + return inet_addr (str); +} + +void +__nisbind_destroy (dir_binding *bind) +{ + if (bind->clnt != NULL) + { + if (bind->use_auth) + auth_destroy (bind->clnt->cl_auth); + clnt_destroy (bind->clnt); + } +} +libnsl_hidden_nolink_def (__nisbind_destroy, GLIBC_2_1) + +nis_error +__nisbind_next (dir_binding *bind) +{ + if (bind->clnt != NULL) + { + if (bind->use_auth) + auth_destroy (bind->clnt->cl_auth); + clnt_destroy (bind->clnt); + bind->clnt = NULL; + } + + if (bind->trys >= bind->server_len) + return NIS_FAIL; + + for (u_int 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) + if (bind->server_val[bind->server_used].ep.ep_val[j].proto[0] == '-') + { + bind->current_ep = j; + return NIS_SUCCESS; + } + + ++bind->trys; + ++bind->server_used; + 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) + 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] == '-') + { + bind->current_ep = j; + return NIS_SUCCESS; + } + + return NIS_FAIL; +} +libnsl_hidden_nolink_def (__nisbind_next, GLIBC_2_1) + +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; + + serv = &dbp->server_val[dbp->server_used]; + + memset (&dbp->addr, '\0', sizeof (dbp->addr)); + dbp->addr.sin_family = AF_INET; + + dbp->addr.sin_addr.s_addr = + inetstr2int (serv->ep.ep_val[dbp->current_ep].uaddr); + + if (dbp->addr.sin_addr.s_addr == INADDR_NONE) + 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) + 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, + UDPTIMEOUT, &dbp->socket); + else + dbp->clnt = clnttcp_create (&dbp->addr, NIS_PROG, NIS_VERSION, + &dbp->socket, 0, 0); + + if (dbp->clnt == NULL) + return NIS_RPCERROR; + + clnt_control (dbp->clnt, CLSET_TIMEOUT, (caddr_t) &RPCTIMEOUT); + /* If the program exists, close the socket */ + if (fcntl (dbp->socket, F_SETFD, 1) == -1) + perror ("fcntl: F_SETFD"); + + if (dbp->use_auth) + { + if (serv->key_type == NIS_PK_DH) + { + char netname[MAXNETNAMELEN + 1]; + char *p; + des_block ckey; + + 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); + if (!dbp->clnt->cl_auth) + dbp->clnt->cl_auth = authunix_create_default (); + } + else + dbp->clnt->cl_auth = authunix_create_default (); + } + + return NIS_SUCCESS; +} +libnsl_hidden_nolink_def (__nisbind_connect, GLIBC_2_1) + +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) +{ + dbp->clnt = NULL; + + dbp->server_len = serv_len; + dbp->server_val = (nis_server *)serv_val; + + if (flags & USE_DGRAM) + dbp->use_udp = TRUE; + else + dbp->use_udp = FALSE; + + if (flags & NO_AUTHINFO) + dbp->use_auth = FALSE; + else + dbp->use_auth = TRUE; + + if (flags & MASTER_ONLY) + dbp->master_only = TRUE; + else + dbp->master_only = FALSE; + + /* We try the first server */ + dbp->trys = 1; + + dbp->class = -1; + if (server_used == ~0) + { + if (__nis_findfastest (dbp) < 1) + return NIS_NAMEUNREACHABLE; + } + else + { + dbp->server_used = server_used; + dbp->current_ep = current_ep; + } + + return NIS_SUCCESS; +} +libnsl_hidden_nolink_def (__nisbind_create, GLIBC_2_1) + +/* __nisbind_connect (dbp) must be run before calling this function ! + So we could use the same binding twice */ +nis_error +__do_niscall3 (dir_binding *dbp, u_long prog, xdrproc_t xargs, caddr_t req, + xdrproc_t xres, caddr_t resp, unsigned int flags, nis_cb *cb) +{ + enum clnt_stat result; + nis_error retcode; + + if (dbp == NULL) + return NIS_NAMEUNREACHABLE; + + do + { + again: + result = clnt_call (dbp->clnt, prog, xargs, req, xres, resp, RPCTIMEOUT); + + if (result != RPC_SUCCESS) + retcode = NIS_RPCERROR; + else + { + switch (prog) + { + case NIS_IBLIST: + if ((((nis_result *)resp)->status == NIS_CBRESULTS) && + (cb != NULL)) + { + __nis_do_callback (dbp, &((nis_result *) resp)->cookie, cb); + break; + } + /* Yes, the missing break is correct. If we doesn't have to + start a callback, look if we have to search another server */ + case NIS_LOOKUP: + case NIS_ADD: + case NIS_MODIFY: + case NIS_REMOVE: + case NIS_IBADD: + case NIS_IBMODIFY: + case NIS_IBREMOVE: + case NIS_IBFIRST: + case NIS_IBNEXT: + if (((nis_result *)resp)->status == NIS_SYSTEMERROR + || ((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) + { + if (__nisbind_next (dbp) != NIS_SUCCESS) + return NIS_SUCCESS; + } + } + else + break; /* No more servers to search in */ + goto again; + } + break; + case NIS_FINDDIRECTORY: + if (((fd_result *)resp)->status == NIS_SYSTEMERROR + || ((fd_result *)resp)->status == NIS_NOSUCHNAME + || ((fd_result *)resp)->status == NIS_NOT_ME) + goto next_server; + 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; + break; + default: + break; + } + retcode = NIS_SUCCESS; + } + } + while ((flags & HARD_LOOKUP) && retcode == NIS_RPCERROR); + + return retcode; +} +libnsl_hidden_nolink_def (__do_niscall3, GLIBC_PRIVATE) + + +nis_error +__do_niscall2 (const nis_server *server, u_int server_len, u_long prog, + xdrproc_t xargs, caddr_t req, xdrproc_t xres, caddr_t resp, + unsigned int flags, nis_cb *cb) +{ + dir_binding dbp; + nis_error status; + + if (flags & MASTER_ONLY) + server_len = 1; + + status = __nisbind_create (&dbp, server, server_len, ~0, ~0, flags); + if (status != NIS_SUCCESS) + return status; + + while (__nisbind_connect (&dbp) != NIS_SUCCESS) + if (__nisbind_next (&dbp) != NIS_SUCCESS) + return NIS_NAMEUNREACHABLE; + + status = __do_niscall3 (&dbp, prog, xargs, req, xres, resp, flags, cb); + + __nisbind_destroy (&dbp); + + return status; + +} + +static directory_obj * +rec_dirsearch (const_nis_name name, directory_obj *dir, nis_error *status) +{ + fd_result *fd_res; + XDR xdrs; + + switch (nis_dir_cmp (name, dir->do_name)) + { + case SAME_NAME: + *status = NIS_SUCCESS; + return dir; + case NOT_SEQUENTIAL: + /* NOT_SEQUENTIAL means, go one up and try it there ! */ + case HIGHER_NAME: + { /* We need data from a parent domain */ + directory_obj *obj; + const char *ndomain = __nis_domain_of (dir->do_name); + + /* 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) + { + /* Try the current directory obj, maybe it works */ + __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); + } + break; + case LOWER_NAME: + { + directory_obj *obj; + size_t namelen = strlen (name); + char leaf[namelen + 3]; + char domain[namelen + 3]; + const char *ndomain; + char *cp; + + strcpy (domain, name); + + do + { + if (domain[0] == '\0') + { + nis_free_directory (dir); + return NULL; + } + nis_leaf_of_r (domain, leaf, sizeof (leaf)); + ndomain = __nis_domain_of (domain); + memmove (domain, ndomain, strlen (ndomain) + 1); + } + while (nis_dir_cmp (domain, dir->do_name) != SAME_NAME); + + cp = rawmemchr (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) + { + /* Try the current directory object, maybe it works */ + __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); + } + break; + case BAD_NAME: + nis_free_directory (dir); + *status = NIS_BADNAME; + return NULL; + } + nis_free_directory (dir); + *status = NIS_FAIL; + return NULL; +} + +/* We try to query the current server for the searched object, + maybe he know about it ? */ +static directory_obj * +first_shoot (const_nis_name name, directory_obj *dir) +{ + directory_obj *obj = NULL; + fd_result *fd_res; + XDR xdrs; + + if (nis_dir_cmp (name, dir->do_name) == SAME_NAME) + return dir; + + fd_res = __nis_finddirectory (dir, name); + if (fd_res == NULL) + return NULL; + 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); + _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); + + if (obj != NULL) + nis_free_directory (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; + + int saved_errno = errno; + if (stat64 ("/var/nis/NIS_COLD_START", &st) < 0) + st.st_mtime = nis_cold_start_mtime + 1; + __set_errno (saved_errno); + + __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) +{ + 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, + ¤t_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; + } + + int saved_errno = errno; + *dir = readColdStartFile (); + __set_errno (saved_errno); + 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; + } + + 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) + { + 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); + } + else + { + nis_free_directory (obj); + obj = NULL; + } + } + + *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 (__glibc_unlikely (retcode != NIS_SUCCESS)) + 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; +} +libnsl_hidden_nolink_def (__prepare_niscall, GLIBC_PRIVATE) + + +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) +{ + dir_binding bptr; + directory_obj *dir = NULL; + int saved_errno = errno; + + nis_error retcode = __prepare_niscall (name, &dir, &bptr, flags); + if (retcode == NIS_SUCCESS) + { + retcode = __do_niscall3 (&bptr, prog, xargs, req, xres, resp, flags, cb); + + __nisbind_destroy (&bptr); + + nis_free_directory (dir); + } + + __set_errno (saved_errno); + + return retcode; +} |