about summary refs log tree commit diff
path: root/REORG.TODO/nis/ypclnt.c
diff options
context:
space:
mode:
authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/nis/ypclnt.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.gz
glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.tar.xz
glibc-5046dbb4a7eba5eccfd258f92f4735c9ffc8d069.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/nis/ypclnt.c')
-rw-r--r--REORG.TODO/nis/ypclnt.c1030
1 files changed, 1030 insertions, 0 deletions
diff --git a/REORG.TODO/nis/ypclnt.c b/REORG.TODO/nis/ypclnt.c
new file mode 100644
index 0000000000..a03e347685
--- /dev/null
+++ b/REORG.TODO/nis/ypclnt.c
@@ -0,0 +1,1030 @@
+/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@suse.de>, 1996.
+
+   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 <unistd.h>
+#include <libintl.h>
+#include <rpc/rpc.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+#include <rpcsvc/ypupd.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+#include <libc-lock.h>
+#include <shlib-compat.h>
+
+/* This should only be defined on systems with a BSD compatible ypbind */
+#ifndef BINDINGDIR
+# define BINDINGDIR "/var/yp/binding"
+#endif
+
+struct dom_binding
+  {
+    struct dom_binding *dom_pnext;
+    char dom_domain[YPMAXDOMAIN + 1];
+    struct sockaddr_in dom_server_addr;
+    int dom_socket;
+    CLIENT *dom_client;
+  };
+typedef struct dom_binding dom_binding;
+
+static const struct timeval RPCTIMEOUT = {25, 0};
+static const struct timeval UDPTIMEOUT = {5, 0};
+static int const MAXTRIES = 2;
+static char ypdomainname[NIS_MAXNAMELEN + 1];
+__libc_lock_define_initialized (static, ypbindlist_lock)
+static dom_binding *ypbindlist = NULL;
+
+
+static void
+yp_bind_client_create (const char *domain, dom_binding *ysd,
+		       struct ypbind_resp *ypbr)
+{
+  ysd->dom_server_addr.sin_family = AF_INET;
+  memcpy (&ysd->dom_server_addr.sin_port,
+	  ypbr->ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
+	  sizeof (ysd->dom_server_addr.sin_port));
+  memcpy (&ysd->dom_server_addr.sin_addr.s_addr,
+	  ypbr->ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
+	  sizeof (ysd->dom_server_addr.sin_addr.s_addr));
+  strncpy (ysd->dom_domain, domain, YPMAXDOMAIN);
+  ysd->dom_domain[YPMAXDOMAIN] = '\0';
+
+  ysd->dom_socket = RPC_ANYSOCK;
+  ysd->dom_client = __libc_clntudp_bufcreate (&ysd->dom_server_addr, YPPROG,
+					      YPVERS, UDPTIMEOUT,
+					      &ysd->dom_socket,
+					      UDPMSGSIZE, UDPMSGSIZE,
+					      SOCK_CLOEXEC);
+}
+
+#if USE_BINDINGDIR
+static void
+yp_bind_file (const char *domain, dom_binding *ysd)
+{
+  char path[sizeof (BINDINGDIR) + strlen (domain) + 3 * sizeof (unsigned) + 3];
+
+  snprintf (path, sizeof (path), "%s/%s.%u", BINDINGDIR, domain, YPBINDVERS);
+  int fd = open (path, O_RDONLY);
+  if (fd >= 0)
+    {
+      /* We have a binding file and could save a RPC call.  The file
+	 contains a port number and the YPBIND_RESP record.  The port
+	 number (16 bits) can be ignored.  */
+      struct ypbind_resp ypbr;
+
+      if (pread (fd, &ypbr, sizeof (ypbr), 2) == sizeof (ypbr))
+	yp_bind_client_create (domain, ysd, &ypbr);
+
+      close (fd);
+    }
+}
+#endif
+
+static int
+yp_bind_ypbindprog (const char *domain, dom_binding *ysd)
+{
+  struct sockaddr_in clnt_saddr;
+  struct ypbind_resp ypbr;
+  int clnt_sock;
+  CLIENT *client;
+
+  clnt_saddr.sin_family = AF_INET;
+  clnt_saddr.sin_port = 0;
+  clnt_saddr.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+  clnt_sock = RPC_ANYSOCK;
+  client = clnttcp_create (&clnt_saddr, YPBINDPROG, YPBINDVERS,
+			   &clnt_sock, 0, 0);
+  if (client == NULL)
+    return YPERR_YPBIND;
+
+  /* Check the port number -- should be < IPPORT_RESERVED.
+     If not, it's possible someone has registered a bogus
+     ypbind with the portmapper and is trying to trick us. */
+  if (ntohs (clnt_saddr.sin_port) >= IPPORT_RESERVED)
+    {
+      clnt_destroy (client);
+      return YPERR_YPBIND;
+    }
+
+  if (clnt_call (client, YPBINDPROC_DOMAIN,
+		 (xdrproc_t) xdr_domainname, (caddr_t) &domain,
+		 (xdrproc_t) xdr_ypbind_resp,
+		 (caddr_t) &ypbr, RPCTIMEOUT) != RPC_SUCCESS)
+    {
+      clnt_destroy (client);
+      return YPERR_YPBIND;
+    }
+
+  clnt_destroy (client);
+
+  if (ypbr.ypbind_status != YPBIND_SUCC_VAL)
+    {
+      fprintf (stderr, "YPBINDPROC_DOMAIN: %s\n",
+	       ypbinderr_string (ypbr.ypbind_resp_u.ypbind_error));
+      return YPERR_DOMAIN;
+    }
+  memset (&ysd->dom_server_addr, '\0', sizeof ysd->dom_server_addr);
+
+  yp_bind_client_create (domain, ysd, &ypbr);
+
+  return YPERR_SUCCESS;
+}
+
+static int
+__yp_bind (const char *domain, dom_binding **ypdb)
+{
+  dom_binding *ysd = NULL;
+  int is_new = 0;
+
+  if (domain == NULL || domain[0] == '\0')
+    return YPERR_BADARGS;
+
+  ysd = *ypdb;
+  while (ysd != NULL)
+    {
+      if (strcmp (domain, ysd->dom_domain) == 0)
+	break;
+      ysd = ysd->dom_pnext;
+    }
+
+  if (ysd == NULL)
+    {
+      is_new = 1;
+      ysd = (dom_binding *) calloc (1, sizeof *ysd);
+      if (__glibc_unlikely (ysd == NULL))
+	return YPERR_RESRC;
+    }
+
+#if USE_BINDINGDIR
+  /* Try binding dir at first if we have no binding */
+  if (ysd->dom_client == NULL)
+    yp_bind_file (domain, ysd);
+#endif /* USE_BINDINGDIR */
+
+  if (ysd->dom_client == NULL)
+    {
+      int retval = yp_bind_ypbindprog (domain, ysd);
+      if (retval != YPERR_SUCCESS)
+	{
+	  if (is_new)
+	    free (ysd);
+	  return retval;
+	}
+    }
+
+  if (ysd->dom_client == NULL)
+    {
+      if (is_new)
+	free (ysd);
+      return YPERR_YPSERV;
+    }
+
+  if (is_new)
+    {
+      ysd->dom_pnext = *ypdb;
+      *ypdb = ysd;
+    }
+
+  return YPERR_SUCCESS;
+}
+
+static void
+__yp_unbind (dom_binding *ydb)
+{
+  clnt_destroy (ydb->dom_client);
+  free (ydb);
+}
+
+int
+yp_bind (const char *indomain)
+{
+  int status;
+
+  __libc_lock_lock (ypbindlist_lock);
+
+  status = __yp_bind (indomain, &ypbindlist);
+
+  __libc_lock_unlock (ypbindlist_lock);
+
+  return status;
+}
+libnsl_hidden_nolink_def (yp_bind, GLIBC_2_0)
+
+static void
+yp_unbind_locked (const char *indomain)
+{
+  dom_binding *ydbptr, *ydbptr2;
+
+  ydbptr2 = NULL;
+  ydbptr = ypbindlist;
+
+  while (ydbptr != NULL)
+    {
+      if (strcmp (ydbptr->dom_domain, indomain) == 0)
+	{
+	  dom_binding *work;
+
+	  work = ydbptr;
+	  if (ydbptr2 == NULL)
+	    ypbindlist = ypbindlist->dom_pnext;
+	  else
+	    ydbptr2 = ydbptr->dom_pnext;
+	  __yp_unbind (work);
+	  break;
+	}
+      ydbptr2 = ydbptr;
+      ydbptr = ydbptr->dom_pnext;
+    }
+}
+
+void
+yp_unbind (const char *indomain)
+{
+  __libc_lock_lock (ypbindlist_lock);
+
+  yp_unbind_locked (indomain);
+
+  __libc_lock_unlock (ypbindlist_lock);
+
+  return;
+}
+libnsl_hidden_nolink_def(yp_unbind, GLIBC_2_0)
+
+static int
+__ypclnt_call (const char *domain, u_long prog, xdrproc_t xargs,
+	       caddr_t req, xdrproc_t xres, caddr_t resp, dom_binding **ydb,
+	       int print_error)
+{
+  enum clnt_stat result;
+
+  result = clnt_call ((*ydb)->dom_client, prog,
+		      xargs, req, xres, resp, RPCTIMEOUT);
+
+  if (result != RPC_SUCCESS)
+    {
+      /* We don't print an error message, if we try our old,
+	 cached data. Only print this for data, which should work.  */
+      if (print_error)
+	clnt_perror ((*ydb)->dom_client, "do_ypcall: clnt_call");
+
+      return YPERR_RPC;
+    }
+
+  return YPERR_SUCCESS;
+}
+
+static int
+do_ypcall (const char *domain, u_long prog, xdrproc_t xargs,
+	   caddr_t req, xdrproc_t xres, caddr_t resp)
+{
+  dom_binding *ydb;
+  int status;
+  int saved_errno = errno;
+
+  status = YPERR_YPERR;
+
+  __libc_lock_lock (ypbindlist_lock);
+  ydb = ypbindlist;
+  while (ydb != NULL)
+    {
+      if (strcmp (domain, ydb->dom_domain) == 0)
+	{
+          if (__yp_bind (domain, &ydb) == 0)
+	    {
+	      /* Call server, print no error message, do not unbind.  */
+	      status = __ypclnt_call (domain, prog, xargs, req, xres,
+				      resp, &ydb, 0);
+	      if (status == YPERR_SUCCESS)
+	        {
+		  __libc_lock_unlock (ypbindlist_lock);
+	          __set_errno (saved_errno);
+	          return status;
+	        }
+	    }
+	  /* We use ypbindlist, and the old cached data is
+	     invalid. unbind now and create a new binding */
+	  yp_unbind_locked (domain);
+
+	  break;
+	}
+      ydb = ydb->dom_pnext;
+    }
+  __libc_lock_unlock (ypbindlist_lock);
+
+  /* First try with cached data failed. Now try to get
+     current data from the system.  */
+  ydb = NULL;
+  if (__yp_bind (domain, &ydb) == 0)
+    {
+      status = __ypclnt_call (domain, prog, xargs, req, xres,
+			      resp, &ydb, 1);
+      __yp_unbind (ydb);
+    }
+
+#if USE_BINDINGDIR
+  /* If we support binding dir data, we have a third chance:
+     Ask ypbind.  */
+  if (status != YPERR_SUCCESS)
+    {
+      ydb = calloc (1, sizeof (dom_binding));
+      if (ydb != NULL && yp_bind_ypbindprog (domain, ydb) == YPERR_SUCCESS)
+	{
+	  status = __ypclnt_call (domain, prog, xargs, req, xres,
+				  resp, &ydb, 1);
+	  __yp_unbind (ydb);
+	}
+      else
+	free (ydb);
+    }
+#endif
+
+  __set_errno (saved_errno);
+
+  return status;
+}
+
+/* Like do_ypcall, but translate the status value if necessary.  */
+static int
+do_ypcall_tr (const char *domain, u_long prog, xdrproc_t xargs,
+	      caddr_t req, xdrproc_t xres, caddr_t resp)
+{
+  int status = do_ypcall (domain, prog, xargs, req, xres, resp);
+  if (status == YPERR_SUCCESS)
+    /* We cast to ypresp_val although the pointer could also be of
+       type ypresp_key_val or ypresp_master or ypresp_order or
+       ypresp_maplist.  But the stat element is in a common prefix so
+       this does not matter.  */
+    status = ypprot_err (((struct ypresp_val *) resp)->stat);
+  return status;
+}
+
+
+__libc_lock_define_initialized (static, domainname_lock)
+
+int
+yp_get_default_domain (char **outdomain)
+{
+  int result = YPERR_SUCCESS;;
+  *outdomain = NULL;
+
+  __libc_lock_lock (domainname_lock);
+
+  if (ypdomainname[0] == '\0')
+    {
+      if (getdomainname (ypdomainname, NIS_MAXNAMELEN))
+	result = YPERR_NODOM;
+      else if (strcmp (ypdomainname, "(none)") == 0)
+	{
+	  /* If domainname is not set, some systems will return "(none)" */
+	  ypdomainname[0] = '\0';
+	  result = YPERR_NODOM;
+	}
+      else
+	*outdomain = ypdomainname;
+    }
+  else
+    *outdomain = ypdomainname;
+
+  __libc_lock_unlock (domainname_lock);
+
+  return result;
+}
+libnsl_hidden_nolink_def (yp_get_default_domain, GLIBC_2_0)
+
+int
+__yp_check (char **domain)
+{
+  char *unused;
+
+  if (ypdomainname[0] == '\0')
+    if (yp_get_default_domain (&unused))
+      return 0;
+
+  if (domain)
+    *domain = ypdomainname;
+
+  if (yp_bind (ypdomainname) == 0)
+    return 1;
+  return 0;
+}
+libnsl_hidden_nolink_def(__yp_check, GLIBC_2_0)
+
+int
+yp_match (const char *indomain, const char *inmap, const char *inkey,
+	  const int inkeylen, char **outval, int *outvallen)
+{
+  ypreq_key req;
+  ypresp_val resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0' ||
+      inmap == NULL || inmap[0] == '\0' ||
+      inkey == NULL || inkey[0] == '\0' || inkeylen <= 0)
+    return YPERR_BADARGS;
+
+  req.domain = (char *) indomain;
+  req.map = (char *) inmap;
+  req.key.keydat_val = (char *) inkey;
+  req.key.keydat_len = inkeylen;
+
+  *outval = NULL;
+  *outvallen = 0;
+  memset (&resp, '\0', sizeof (resp));
+
+  result = do_ypcall_tr (indomain, YPPROC_MATCH, (xdrproc_t) xdr_ypreq_key,
+			 (caddr_t) &req, (xdrproc_t) xdr_ypresp_val,
+			 (caddr_t) &resp);
+
+  if (result != YPERR_SUCCESS)
+    return result;
+
+  *outvallen = resp.val.valdat_len;
+  *outval = malloc (*outvallen + 1);
+  int status = YPERR_RESRC;
+  if (__glibc_likely (*outval != NULL))
+    {
+      memcpy (*outval, resp.val.valdat_val, *outvallen);
+      (*outval)[*outvallen] = '\0';
+      status = YPERR_SUCCESS;
+    }
+
+  xdr_free ((xdrproc_t) xdr_ypresp_val, (char *) &resp);
+
+  return status;
+}
+libnsl_hidden_nolink_def(yp_match, GLIBC_2_0)
+
+int
+yp_first (const char *indomain, const char *inmap, char **outkey,
+	  int *outkeylen, char **outval, int *outvallen)
+{
+  ypreq_nokey req;
+  ypresp_key_val resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0' ||
+      inmap == NULL || inmap[0] == '\0')
+    return YPERR_BADARGS;
+
+  req.domain = (char *) indomain;
+  req.map = (char *) inmap;
+
+  *outkey = *outval = NULL;
+  *outkeylen = *outvallen = 0;
+  memset (&resp, '\0', sizeof (resp));
+
+  result = do_ypcall (indomain, YPPROC_FIRST, (xdrproc_t) xdr_ypreq_nokey,
+		      (caddr_t) &req, (xdrproc_t) xdr_ypresp_key_val,
+		      (caddr_t) &resp);
+
+  if (result != RPC_SUCCESS)
+    return YPERR_RPC;
+  if (resp.stat != YP_TRUE)
+    return ypprot_err (resp.stat);
+
+  int status;
+  if (__builtin_expect ((*outkey  = malloc (resp.key.keydat_len + 1)) != NULL
+			&& (*outval = malloc (resp.val.valdat_len
+					      + 1)) != NULL, 1))
+    {
+      *outkeylen = resp.key.keydat_len;
+      memcpy (*outkey, resp.key.keydat_val, *outkeylen);
+      (*outkey)[*outkeylen] = '\0';
+
+      *outvallen = resp.val.valdat_len;
+      memcpy (*outval, resp.val.valdat_val, *outvallen);
+      (*outval)[*outvallen] = '\0';
+
+      status = YPERR_SUCCESS;
+    }
+  else
+    {
+      free (*outkey);
+      status = YPERR_RESRC;
+    }
+
+  xdr_free ((xdrproc_t) xdr_ypresp_key_val, (char *) &resp);
+
+  return status;
+}
+libnsl_hidden_nolink_def(yp_first, GLIBC_2_0)
+
+int
+yp_next (const char *indomain, const char *inmap, const char *inkey,
+	 const int inkeylen, char **outkey, int *outkeylen, char **outval,
+	 int *outvallen)
+{
+  ypreq_key req;
+  ypresp_key_val resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0' ||
+      inmap == NULL || inmap[0] == '\0' ||
+      inkeylen <= 0 || inkey == NULL || inkey[0] == '\0')
+    return YPERR_BADARGS;
+
+  req.domain = (char *) indomain;
+  req.map = (char *) inmap;
+  req.key.keydat_val = (char *) inkey;
+  req.key.keydat_len = inkeylen;
+
+  *outkey = *outval = NULL;
+  *outkeylen = *outvallen = 0;
+  memset (&resp, '\0', sizeof (resp));
+
+  result = do_ypcall_tr (indomain, YPPROC_NEXT, (xdrproc_t) xdr_ypreq_key,
+			 (caddr_t) &req, (xdrproc_t) xdr_ypresp_key_val,
+			 (caddr_t) &resp);
+
+  if (result != YPERR_SUCCESS)
+    return result;
+
+  int status;
+  if (__builtin_expect ((*outkey  = malloc (resp.key.keydat_len + 1)) != NULL
+			&& (*outval = malloc (resp.val.valdat_len
+					      + 1)) != NULL, 1))
+    {
+      *outkeylen = resp.key.keydat_len;
+      memcpy (*outkey, resp.key.keydat_val, *outkeylen);
+      (*outkey)[*outkeylen] = '\0';
+
+      *outvallen = resp.val.valdat_len;
+      memcpy (*outval, resp.val.valdat_val, *outvallen);
+      (*outval)[*outvallen] = '\0';
+
+      status = YPERR_SUCCESS;
+    }
+  else
+    {
+      free (*outkey);
+      status = YPERR_RESRC;
+    }
+
+  xdr_free ((xdrproc_t) xdr_ypresp_key_val, (char *) &resp);
+
+  return status;
+}
+libnsl_hidden_nolink_def(yp_next, GLIBC_2_0)
+
+int
+yp_master (const char *indomain, const char *inmap, char **outname)
+{
+  ypreq_nokey req;
+  ypresp_master resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0' ||
+      inmap == NULL || inmap[0] == '\0')
+    return YPERR_BADARGS;
+
+  req.domain = (char *) indomain;
+  req.map = (char *) inmap;
+
+  memset (&resp, '\0', sizeof (ypresp_master));
+
+  result = do_ypcall_tr (indomain, YPPROC_MASTER, (xdrproc_t) xdr_ypreq_nokey,
+			 (caddr_t) &req, (xdrproc_t) xdr_ypresp_master,
+			 (caddr_t) &resp);
+
+  if (result != YPERR_SUCCESS)
+    return result;
+
+  *outname = strdup (resp.peer);
+  xdr_free ((xdrproc_t) xdr_ypresp_master, (char *) &resp);
+
+  return *outname == NULL ? YPERR_YPERR : YPERR_SUCCESS;
+}
+libnsl_hidden_nolink_def (yp_master, GLIBC_2_0)
+
+int
+yp_order (const char *indomain, const char *inmap, unsigned int *outorder)
+{
+  struct ypreq_nokey req;
+  struct ypresp_order resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0' ||
+      inmap == NULL || inmap[0] == '\0')
+    return YPERR_BADARGS;
+
+  req.domain = (char *) indomain;
+  req.map = (char *) inmap;
+
+  memset (&resp, '\0', sizeof (resp));
+
+  result = do_ypcall_tr (indomain, YPPROC_ORDER, (xdrproc_t) xdr_ypreq_nokey,
+			 (caddr_t) &req, (xdrproc_t) xdr_ypresp_order,
+			 (caddr_t) &resp);
+
+  if (result != YPERR_SUCCESS)
+    return result;
+
+  *outorder = resp.ordernum;
+  xdr_free ((xdrproc_t) xdr_ypresp_order, (char *) &resp);
+
+  return result;
+}
+libnsl_hidden_nolink_def(yp_order, GLIBC_2_0)
+
+struct ypresp_all_data
+{
+  unsigned long status;
+  void *data;
+  int (*foreach) (int status, char *key, int keylen,
+		  char *val, int vallen, char *data);
+};
+
+static bool_t
+__xdr_ypresp_all (XDR *xdrs, struct ypresp_all_data *objp)
+{
+  while (1)
+    {
+      struct ypresp_all resp;
+
+      memset (&resp, '\0', sizeof (struct ypresp_all));
+      if (!xdr_ypresp_all (xdrs, &resp))
+	{
+	  xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp);
+	  objp->status = YP_YPERR;
+	  return FALSE;
+	}
+      if (resp.more == 0)
+	{
+	  xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp);
+	  objp->status = YP_NOMORE;
+	  return TRUE;
+	}
+
+      switch (resp.ypresp_all_u.val.stat)
+	{
+	case YP_TRUE:
+	  {
+	    char key[resp.ypresp_all_u.val.key.keydat_len + 1];
+	    char val[resp.ypresp_all_u.val.val.valdat_len + 1];
+	    int keylen = resp.ypresp_all_u.val.key.keydat_len;
+	    int vallen = resp.ypresp_all_u.val.val.valdat_len;
+
+	    /* We are not allowed to modify the key and val data.
+	       But we are allowed to add data behind the buffer,
+	       if we don't modify the length. So add an extra NUL
+	       character to avoid trouble with broken code. */
+	    objp->status = YP_TRUE;
+	    *((char *) __mempcpy (key, resp.ypresp_all_u.val.key.keydat_val,
+				  keylen)) = '\0';
+	    *((char *) __mempcpy (val, resp.ypresp_all_u.val.val.valdat_val,
+				  vallen)) = '\0';
+	    xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp);
+	    if ((*objp->foreach) (objp->status, key, keylen,
+				  val, vallen, objp->data))
+	      return TRUE;
+	  }
+	  break;
+	default:
+	  objp->status = resp.ypresp_all_u.val.stat;
+	  xdr_free ((xdrproc_t) xdr_ypresp_all, (char *) &resp);
+	  /* Sun says we don't need to make this call, but must return
+	     immediately. Since Solaris makes this call, we will call
+	     the callback function, too. */
+	  (*objp->foreach) (objp->status, NULL, 0, NULL, 0, objp->data);
+	  return TRUE;
+	}
+    }
+}
+
+int
+yp_all (const char *indomain, const char *inmap,
+	const struct ypall_callback *incallback)
+{
+  struct ypreq_nokey req;
+  dom_binding *ydb = NULL;
+  int try, res;
+  enum clnt_stat result;
+  struct sockaddr_in clnt_sin;
+  CLIENT *clnt;
+  struct ypresp_all_data data;
+  int clnt_sock;
+  int saved_errno = errno;
+
+  if (indomain == NULL || indomain[0] == '\0'
+      || inmap == NULL || inmap[0] == '\0')
+    return YPERR_BADARGS;
+
+  try = 0;
+  res = YPERR_YPERR;
+
+  while (try < MAXTRIES && res != YPERR_SUCCESS)
+    {
+      if (__yp_bind (indomain, &ydb) != 0)
+	{
+	  __set_errno (saved_errno);
+	  return YPERR_DOMAIN;
+	}
+
+      clnt_sock = RPC_ANYSOCK;
+      clnt_sin = ydb->dom_server_addr;
+      clnt_sin.sin_port = 0;
+
+      /* We don't need the UDP connection anymore.  */
+      __yp_unbind (ydb);
+      ydb = NULL;
+
+      clnt = clnttcp_create (&clnt_sin, YPPROG, YPVERS, &clnt_sock, 0, 0);
+      if (clnt == NULL)
+	{
+	  __set_errno (saved_errno);
+	  return YPERR_PMAP;
+	}
+      req.domain = (char *) indomain;
+      req.map = (char *) inmap;
+
+      data.foreach = incallback->foreach;
+      data.data = (void *) incallback->data;
+
+      result = clnt_call (clnt, YPPROC_ALL, (xdrproc_t) xdr_ypreq_nokey,
+			  (caddr_t) &req, (xdrproc_t) __xdr_ypresp_all,
+			  (caddr_t) &data, RPCTIMEOUT);
+
+      if (__glibc_unlikely (result != RPC_SUCCESS))
+	{
+	  /* Print the error message only on the last try.  */
+	  if (try == MAXTRIES - 1)
+	    clnt_perror (clnt, "yp_all: clnt_call");
+	  res = YPERR_RPC;
+	}
+      else
+	res = YPERR_SUCCESS;
+
+      clnt_destroy (clnt);
+
+      if (res == YPERR_SUCCESS && data.status != YP_NOMORE)
+	{
+	  __set_errno (saved_errno);
+	  return ypprot_err (data.status);
+	}
+      ++try;
+    }
+
+  __set_errno (saved_errno);
+
+  return res;
+}
+libnsl_hidden_nolink_def (yp_all, GLIBC_2_0)
+
+int
+yp_maplist (const char *indomain, struct ypmaplist **outmaplist)
+{
+  struct ypresp_maplist resp;
+  enum clnt_stat result;
+
+  if (indomain == NULL || indomain[0] == '\0')
+    return YPERR_BADARGS;
+
+  memset (&resp, '\0', sizeof (resp));
+
+  result = do_ypcall_tr (indomain, YPPROC_MAPLIST, (xdrproc_t) xdr_domainname,
+			 (caddr_t) &indomain, (xdrproc_t) xdr_ypresp_maplist,
+			 (caddr_t) &resp);
+
+  if (__glibc_likely (result == YPERR_SUCCESS))
+    {
+      *outmaplist = resp.maps;
+      /* We don't free the list, this will be done by ypserv
+	 xdr_free((xdrproc_t)xdr_ypresp_maplist, (char *)&resp); */
+    }
+
+  return result;
+}
+
+const char *
+yperr_string (const int error)
+{
+  const char *str;
+  switch (error)
+    {
+    case YPERR_SUCCESS:
+      str = N_("Success");
+      break;
+    case YPERR_BADARGS:
+      str = N_("Request arguments bad");
+      break;
+    case YPERR_RPC:
+      str = N_("RPC failure on NIS operation");
+      break;
+    case YPERR_DOMAIN:
+      str = N_("Can't bind to server which serves this domain");
+      break;
+    case YPERR_MAP:
+      str = N_("No such map in server's domain");
+      break;
+    case YPERR_KEY:
+      str = N_("No such key in map");
+      break;
+    case YPERR_YPERR:
+      str = N_("Internal NIS error");
+      break;
+    case YPERR_RESRC:
+      str = N_("Local resource allocation failure");
+      break;
+    case YPERR_NOMORE:
+      str = N_("No more records in map database");
+      break;
+    case YPERR_PMAP:
+      str = N_("Can't communicate with portmapper");
+      break;
+    case YPERR_YPBIND:
+      str = N_("Can't communicate with ypbind");
+      break;
+    case YPERR_YPSERV:
+      str = N_("Can't communicate with ypserv");
+      break;
+    case YPERR_NODOM:
+      str = N_("Local domain name not set");
+      break;
+    case YPERR_BADDB:
+      str = N_("NIS map database is bad");
+      break;
+    case YPERR_VERS:
+      str = N_("NIS client/server version mismatch - can't supply service");
+      break;
+    case YPERR_ACCESS:
+      str = N_("Permission denied");
+      break;
+    case YPERR_BUSY:
+      str = N_("Database is busy");
+      break;
+    default:
+      str = N_("Unknown NIS error code");
+      break;
+    }
+  return _(str);
+}
+libnsl_hidden_nolink_def(yperr_string, GLIBC_2_0)
+
+static const int8_t yp_2_yperr[] =
+  {
+#define YP2YPERR(yp, yperr)  [YP_##yp - YP_VERS] = YPERR_##yperr
+    YP2YPERR (TRUE, SUCCESS),
+    YP2YPERR (NOMORE, NOMORE),
+    YP2YPERR (FALSE, YPERR),
+    YP2YPERR (NOMAP, MAP),
+    YP2YPERR (NODOM, DOMAIN),
+    YP2YPERR (NOKEY, KEY),
+    YP2YPERR (BADOP, YPERR),
+    YP2YPERR (BADDB, BADDB),
+    YP2YPERR (YPERR, YPERR),
+    YP2YPERR (BADARGS, BADARGS),
+    YP2YPERR (VERS, VERS)
+  };
+int
+ypprot_err (const int code)
+{
+  if (code < YP_VERS || code > YP_NOMORE)
+    return YPERR_YPERR;
+  return yp_2_yperr[code - YP_VERS];
+}
+libnsl_hidden_nolink_def (ypprot_err, GLIBC_2_0)
+
+const char *
+ypbinderr_string (const int error)
+{
+  const char *str;
+  switch (error)
+    {
+    case 0:
+      str = N_("Success");
+      break;
+    case YPBIND_ERR_ERR:
+      str = N_("Internal ypbind error");
+      break;
+    case YPBIND_ERR_NOSERV:
+      str = N_("Domain not bound");
+      break;
+    case YPBIND_ERR_RESC:
+      str = N_("System resource allocation failure");
+      break;
+    default:
+      str = N_("Unknown ypbind error");
+      break;
+    }
+  return _(str);
+}
+libnsl_hidden_nolink_def (ypbinderr_string, GLIBC_2_0)
+
+#define WINDOW 60
+
+int
+yp_update (char *domain, char *map, unsigned ypop,
+	   char *key, int keylen, char *data, int datalen)
+{
+  union
+    {
+      ypupdate_args update_args;
+      ypdelete_args delete_args;
+    }
+  args;
+  xdrproc_t xdr_argument;
+  unsigned res = 0;
+  CLIENT *clnt;
+  char *master;
+  struct sockaddr saddr;
+  char servername[MAXNETNAMELEN + 1];
+  int r;
+
+  if (!domain || !map || !key || (ypop != YPOP_DELETE && !data))
+    return YPERR_BADARGS;
+
+  args.update_args.mapname = map;
+  args.update_args.key.yp_buf_len = keylen;
+  args.update_args.key.yp_buf_val = key;
+  args.update_args.datum.yp_buf_len = datalen;
+  args.update_args.datum.yp_buf_val = data;
+
+  if ((r = yp_master (domain, map, &master)) != YPERR_SUCCESS)
+    return r;
+
+  if (!host2netname (servername, master, domain))
+    {
+      fputs (_("yp_update: cannot convert host to netname\n"), stderr);
+      free (master);
+      return YPERR_YPERR;
+    }
+
+  clnt = clnt_create (master, YPU_PROG, YPU_VERS, "tcp");
+
+  /* We do not need the string anymore.  */
+  free (master);
+
+  if (clnt == NULL)
+    {
+      clnt_pcreateerror ("yp_update: clnt_create");
+      return YPERR_RPC;
+    }
+
+  if (!clnt_control (clnt, CLGET_SERVER_ADDR, (char *) &saddr))
+    {
+      fputs (_("yp_update: cannot get server address\n"), stderr);
+      return YPERR_RPC;
+    }
+
+  switch (ypop)
+    {
+    case YPOP_CHANGE:
+    case YPOP_INSERT:
+    case YPOP_STORE:
+      xdr_argument = (xdrproc_t) xdr_ypupdate_args;
+      break;
+    case YPOP_DELETE:
+      xdr_argument = (xdrproc_t) xdr_ypdelete_args;
+      break;
+    default:
+      return YPERR_BADARGS;
+      break;
+    }
+
+  clnt->cl_auth = authdes_create (servername, WINDOW, &saddr, NULL);
+
+  if (clnt->cl_auth == NULL)
+    clnt->cl_auth = authunix_create_default ();
+
+again:
+  r = clnt_call (clnt, ypop, xdr_argument, (caddr_t) &args,
+		 (xdrproc_t) xdr_u_int, (caddr_t) &res, RPCTIMEOUT);
+
+  if (r == RPC_AUTHERROR)
+    {
+      if (clnt->cl_auth->ah_cred.oa_flavor == AUTH_DES)
+	{
+	  auth_destroy (clnt->cl_auth);
+	  clnt->cl_auth = authunix_create_default ();
+	  goto again;
+	}
+      else
+	return YPERR_ACCESS;
+    }
+  if (r != RPC_SUCCESS)
+    {
+      clnt_perror (clnt, "yp_update: clnt_call");
+      return YPERR_RPC;
+    }
+  return res;
+}
+libnsl_hidden_nolink_def(yp_update, GLIBC_2_0)