Changes and additions migrated from cvs.devel.redhat.com:/cvs/devel/glibc to fedora-branch

11 files changed, 3152 insertions, 0 deletions

diff --git a/glibc-compat/nss_nis/nis-alias.c b/glibc-compat/nss_nis/nis-alias.c
new file mode 100644
index 0000000000..14149699d3
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-alias.c
@@ -0,0 +1,278 @@
+/* Copyright (C) 1996, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <glibc-compat/include/aliases.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+static int
+_nss_nis_parse_aliasent (const char *key, char *alias, struct aliasent *result,
+			 char *buffer, size_t buflen)
+{
+  char *first_unused = buffer + strlen (alias) + 1;
+  size_t room_left =
+    buflen - (buflen % __alignof__ (char *)) - strlen (alias) - 2;
+  char *line;
+  char *cp;
+
+  result->alias_members_len = 0;
+  *first_unused = '\0';
+  first_unused++;
+  strcpy (first_unused, key);
+
+  if (first_unused[room_left - 1] != '\0')
+    {
+      /* The line is too long for our buffer.  */
+    no_more_room:
+      __set_errno (ERANGE);
+      return -1;
+    }
+
+  result->alias_name = first_unused;
+
+  /* Terminate the line for any case.  */
+  cp = strpbrk (alias, "#\n");
+  if (cp != NULL)
+    *cp = '\0';
+
+  first_unused += strlen (result->alias_name) + 1;
+  /* Adjust the pointer so it is aligned for
+     storing pointers.  */
+  first_unused += __alignof__ (char *) - 1;
+  first_unused -= ((first_unused - (char *) 0) % __alignof__ (char *));
+  result->alias_members = (char **) first_unused;
+
+  line = alias;
+
+  while (*line != '\0')
+    {
+      /* Skip leading blanks.  */
+      while (isspace (*line))
+	line++;
+
+      if (*line == '\0')
+	break;
+
+      if (room_left < sizeof (char *))
+	  goto no_more_room;
+      room_left -= sizeof (char *);
+      result->alias_members[result->alias_members_len] = line;
+
+      while (*line != '\0' && *line != ',')
+	line++;
+
+      if (line != result->alias_members[result->alias_members_len])
+	{
+	  *line = '\0';
+	  line++;
+	  result->alias_members_len++;
+	}
+    }
+  return result->alias_members_len == 0 ? 0 : 1;
+}
+
+enum nss_status
+_nss_nis_setaliasent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endaliasent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getaliasent_r (struct aliasent *alias, char *buffer,
+			    size_t buflen)
+{
+  char *domain;
+  char *result;
+  int len;
+  char *outkey;
+  int keylen;
+  char *p;
+  int parse_res;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  alias->alias_local = 0;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "mail.aliases",
+				      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "mail.aliases", oldkey,
+				      oldkeylen, &outkey, &keylen,
+				      &result, &len));
+      if (retval != NSS_STATUS_SUCCESS)
+	{
+	  if (retval == NSS_STATUS_TRYAGAIN)
+            __set_errno (EAGAIN);
+          return retval;
+        }
+
+      if ((size_t) (len + 1) > buflen)
+        {
+	  free (result);
+          __set_errno (ERANGE);
+          return NSS_STATUS_TRYAGAIN;
+        }
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+      while (isspace (*p))
+        ++p;
+      free (result);
+
+      parse_res = _nss_nis_parse_aliasent (outkey, p, alias, buffer, buflen);
+      if (parse_res == -1)
+	{
+	  __set_errno (ERANGE);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getaliasent_r (struct aliasent *alias, char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getaliasent_r (alias, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getaliasbyname_r (const char *name, struct aliasent *alias,
+			   char *buffer, size_t buflen)
+{
+  enum nss_status retval;
+  int parse_res;
+  char *domain;
+  char *result;
+  int len;
+  char *p;
+  size_t namlen = strlen (name);
+  char name2[namlen + 1];
+  int i;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  /* Convert name to lowercase.  */
+  for (i = 0; i < namlen; ++i)
+    name2[i] = tolower (name[i]);
+  name2[i] = '\0';
+
+  retval = yperr2nss (yp_match (domain, "mail.aliases", name, namlen,
+				&result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	__set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  alias->alias_local = 0;
+  parse_res = _nss_nis_parse_aliasent (name, p, alias, buffer, buflen);
+  if (parse_res == -1)
+    return NSS_STATUS_TRYAGAIN;
+  else
+    if (parse_res == 0)
+      return NSS_STATUS_NOTFOUND;
+    else
+      return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-ethers.c b/glibc-compat/nss_nis/nis-ethers.c
new file mode 100644
index 0000000000..54b99dcba9
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-ethers.c
@@ -0,0 +1,299 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+#include <netinet/if_ether.h>
+
+#include "nss-nis.h"
+
+/* Protect global state against multiple changers */
+__libc_lock_define_initialized (static, lock)
+
+struct ether
+{
+  const char *e_name;
+  struct ether_addr e_addr;
+};
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME etherent
+#define STRUCTURE ether
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+struct response
+{
+  char *val;
+  struct response *next;
+};
+
+static struct response *start = NULL;
+static struct response *next = NULL;
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+	int invallen, char *indata)
+{
+  if (instatus != YP_TRUE)
+    return instatus;
+
+  if (inkey && inkeylen > 0 && inval && invallen > 0)
+    {
+      if (start == NULL)
+	{
+	  start = malloc (sizeof (struct response));
+	  next = start;
+	}
+      else
+	{
+	  next->next = malloc (sizeof (struct response));
+	  next = next->next;
+	}
+      next->next = NULL;
+      next->val = malloc (invallen + 1);
+      strncpy (next->val, inval, invallen);
+      next->val[invallen] = '\0';
+    }
+
+  return 0;
+}
+
+enum nss_status
+internal_nis_setetherent (void)
+{
+  char *domainname;
+  struct ypall_callback ypcb;
+  enum nss_status status;
+
+  yp_get_default_domain (&domainname);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+	free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+
+  ypcb.foreach = saveit;
+  ypcb.data = NULL;
+  status = yperr2nss (yp_all (domainname, "ethers.byname", &ypcb));
+  next = start;
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_setetherent (void)
+{
+  enum nss_status result;
+
+  __libc_lock_lock (lock);
+
+  result = internal_nis_setetherent ();
+
+  __libc_lock_unlock (lock);
+
+  return result;
+}
+
+enum nss_status
+_nss_nis_endetherent (void)
+{
+  __libc_lock_lock (lock);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+	free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+  next = NULL;
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getetherent_r (struct ether *eth, char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  int parse_res;
+
+  if (start == NULL)
+    internal_nis_setetherent ();
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      char *p;
+
+      if (next == NULL)
+	return NSS_STATUS_NOTFOUND;
+      p = strncpy (buffer, next->val, buflen);
+      next = next->next;
+
+      while (isspace (*p))
+        ++p;
+
+      parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getetherent_r (struct ether *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getetherent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_gethostton_r (const char *name, struct ether *eth,
+		       char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  retval = yperr2nss (yp_match (domain, "ethers.byname", name,
+				strlen (name), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getntohost_r (struct ether_addr *addr, struct ether *eth,
+		       char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, nlen, parse_res;
+  char buf[33];
+
+  if (addr == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%x:%x:%x:%x:%x:%x",
+		  (int) addr->ether_addr_octet[0],
+		  (int) addr->ether_addr_octet[1],
+		  (int) addr->ether_addr_octet[2],
+		  (int) addr->ether_addr_octet[3],
+		  (int) addr->ether_addr_octet[4],
+		  (int) addr->ether_addr_octet[5]);
+
+  retval = yperr2nss (yp_match (domain, "ethers.byaddr", buf,
+				nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_etherent (p, eth, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-grp.c b/glibc-compat/nss_nis/nis-grp.c
new file mode 100644
index 0000000000..5b8e838bdc
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-grp.c
@@ -0,0 +1,249 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/grp.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME grent
+#define STRUCTURE group
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+/* Protect global state against multiple changers */
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_setgrent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endgrent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getgrent_r (struct group *grp, char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  char *domain, *result, *outkey;
+  int len, keylen, parse_res;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+      char *p;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "group.byname",
+                                      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "group.byname",
+                                      oldkey, oldkeylen,
+                                      &outkey, &keylen, &result, &len));
+
+      if (retval != NSS_STATUS_SUCCESS)
+        {
+          if (retval == NSS_STATUS_TRYAGAIN)
+            __set_errno (EAGAIN);
+          return retval;
+        }
+
+      if ((size_t) (len + 1) > buflen)
+        {
+          free (result);
+          __set_errno (ERANGE);
+          return NSS_STATUS_TRYAGAIN;
+        }
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+      while (isspace (*p))
+        ++p;
+      free (result);
+
+      parse_res = _nss_files_parse_grent (p, grp, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getgrent_r (struct group *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getgrent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getgrnam_r (const char *name, struct group *grp,
+		     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  retval = yperr2nss (yp_match (domain, "group.byname", name,
+				strlen (name), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_grent (p, grp, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getgrgid_r (gid_t gid, struct group *grp,
+		     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, nlen, parse_res;
+  char buf[32];
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%d", gid);
+
+  retval = yperr2nss (yp_match (domain, "group.bygid", buf,
+				nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_grent (p, grp, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-hosts.c b/glibc-compat/nss_nis/nis-hosts.c
new file mode 100644
index 0000000000..c6c413c55d
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-hosts.c
@@ -0,0 +1,417 @@
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <ctype.h>
+#include <glibc-compat/include/netdb.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <resolv.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get implementation for some internal functions. */
+#include "../../resolv/mapv4v6addr.h"
+#include "../../resolv/mapv4v6hostent.h"
+
+#define ENTNAME         hostent
+#define DATABASE        "hosts"
+#define NEED_H_ERRNO
+
+#define ENTDATA hostent_data
+struct hostent_data
+  {
+    unsigned char host_addr[16];	/* IPv4 or IPv6 address.  */
+    char *h_addr_ptrs[2];	/* Points to that and null terminator.  */
+  };
+
+#define TRAILING_LIST_MEMBER            h_aliases
+#define TRAILING_LIST_SEPARATOR_P       isspace
+#include "../nss_files/files-parse.c"
+LINE_PARSER
+("#",
+ {
+   char *addr;
+
+   STRING_FIELD (addr, isspace, 1);
+
+   /* Parse address.  */
+   if ((_res.options & RES_USE_INET6)
+       && inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
+     {
+       result->h_addrtype = AF_INET6;
+       result->h_length = IN6ADDRSZ;
+     }
+   else
+     if (inet_pton (AF_INET, addr, entdata->host_addr) > 0)
+       {
+	 if (_res.options & RES_USE_INET6)
+	   {
+	     map_v4v6_address ((char *) entdata->host_addr,
+			       (char *) entdata->host_addr);
+	     result->h_addrtype = AF_INET6;
+	     result->h_length = IN6ADDRSZ;
+	   }
+	 else
+	   {
+	     result->h_addrtype = AF_INET;
+	     result->h_length = INADDRSZ;
+	   }
+       }
+     else
+       /* Illegal address: ignore line.  */
+       return 0;
+
+   /* Store a pointer to the address in the expected form.  */
+   entdata->h_addr_ptrs[0] = entdata->host_addr;
+   entdata->h_addr_ptrs[1] = NULL;
+   result->h_addr_list = entdata->h_addr_ptrs;
+
+   /* If we need the host entry in IPv6 form change it now.  */
+   if (_res.options & RES_USE_INET6)
+     {
+       char *bufptr = data->linebuffer;
+       size_t buflen = (char *) data + datalen - bufptr;
+       int ibuflen = buflen;	/* Use this for machines with size_t > int.  */
+       map_v4v6_hostent (result, &bufptr, &ibuflen);
+       buflen = ibuflen;
+     }
+
+   STRING_FIELD (result->h_name, isspace, 1);
+ }
+)
+
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_sethostent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endhostent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_gethostent_r (struct hostent *host, char *buffer,
+			   size_t buflen, int *h_errnop)
+{
+  char *domain;
+  char *result;
+  int len, parse_res;
+  char *outkey;
+  int keylen;
+  struct parser_data *data = (void *) buffer;
+  size_t linebuflen = buffer + buflen - data->linebuffer;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  if (buflen < sizeof *data + 1)
+    {
+      __set_errno (ERANGE);
+      *h_errnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+      char *p;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "hosts.byname",
+                                      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "hosts.byname",
+                                      oldkey, oldkeylen,
+                                      &outkey, &keylen, &result, &len));
+
+      if (retval != NSS_STATUS_SUCCESS)
+        {
+	  switch (retval)
+	    {
+	    case NSS_STATUS_TRYAGAIN:
+	      __set_errno (EAGAIN);
+	      *h_errnop = TRY_AGAIN;
+	      break;
+	    case NSS_STATUS_NOTFOUND:
+	      *h_errnop = HOST_NOT_FOUND;
+	      break;
+	    default:
+	      *h_errnop = NO_RECOVERY;
+	      break;
+	    }
+	  return retval;
+	}
+
+      if ((size_t) (len + 1) > linebuflen)
+        {
+          free (result);
+	  *h_errnop = NETDB_INTERNAL;
+          __set_errno (ERANGE);
+          return NSS_STATUS_TRYAGAIN;
+        }
+
+      p = strncpy (data->linebuffer, result, len);
+      data->linebuffer[len] = '\0';
+      while (isspace (*p))
+	++p;
+      free (result);
+
+      parse_res = parse_line (p, host, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+	{
+	  *h_errnop = NETDB_INTERNAL;;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  *h_errnop = NETDB_SUCCESS;
+  return NSS_STATUS_SUCCESS;
+}
+
+int
+_nss_nis_gethostent_r (struct hostent *host, char *buffer, size_t buflen,
+		       int *h_errnop)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_gethostent_r (host, buffer, buflen, h_errnop);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_gethostbyname2_r (const char *name, int af, struct hostent *host,
+			  char *buffer, size_t buflen, int *h_errnop)
+{
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+  struct parser_data *data = (void *) buffer;
+  size_t linebuflen = buffer + buflen - data->linebuffer;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  if (buflen < sizeof *data + 1)
+    {
+      *h_errnop = NETDB_INTERNAL;
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+  else
+    {
+      /* Convert name to lowercase.  */
+      size_t namelen = strlen (name);
+      char name2[namelen + 1];
+      int i;
+
+      for (i = 0; i < namelen; ++i)
+	name2[i] = tolower (name[i]);
+      name2[i] = '\0';
+
+      retval = yperr2nss (yp_match (domain, "hosts.byname", name2,
+				    namelen, &result, &len));
+
+    }
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	{
+	  *h_errnop = TRY_AGAIN;
+	  __set_errno (EAGAIN);
+	}
+      if (retval == NSS_STATUS_NOTFOUND)
+	*h_errnop = HOST_NOT_FOUND;
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > linebuflen)
+    {
+      free (result);
+      *h_errnop = NETDB_INTERNAL;
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (data->linebuffer, result, len);
+  data->linebuffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = parse_line (p, host, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    {
+      *h_errnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  if (parse_res == 0 || host->h_addrtype != af)
+    {
+      *h_errnop = HOST_NOT_FOUND;
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  *h_errnop = NETDB_SUCCESS;
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_gethostbyname_r (const char *name, struct hostent *host,
+			  char *buffer, size_t buflen, int *h_errnop)
+{
+  if (_res.options & RES_USE_INET6)
+    {
+      enum nss_status status;
+
+      status = _nss_nis_gethostbyname2_r (name, AF_INET6, host, buffer, buflen,
+					  h_errnop);
+      if (status == NSS_STATUS_SUCCESS)
+	return status;
+    }
+
+  return _nss_nis_gethostbyname2_r (name, AF_INET, host, buffer, buflen,
+				    h_errnop);
+}
+
+enum nss_status
+_nss_nis_gethostbyaddr_r (char *addr, int addrlen, int type,
+			  struct hostent *host, char *buffer, size_t buflen,
+			  int *h_errnop)
+{
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+  char *buf;
+  struct parser_data *data = (void *) buffer;
+  size_t linebuflen = buffer + buflen - data->linebuffer;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  if (buflen < sizeof *data + 1)
+    {
+      __set_errno (ERANGE);
+      *h_errnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  buf = inet_ntoa (*(struct in_addr *) addr);
+
+  retval = yperr2nss (yp_match (domain, "hosts.byaddr", buf,
+                                strlen (buf), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	{
+	  *h_errnop = TRY_AGAIN;
+	  __set_errno (EAGAIN);
+	}
+      if (retval == NSS_STATUS_NOTFOUND)
+	*h_errnop = HOST_NOT_FOUND;
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > linebuflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      *h_errnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (data->linebuffer, result, len);
+  data->linebuffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = parse_line (p, host, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    {
+      *h_errnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+  else if (parse_res == 0)
+    {
+      *h_errnop = HOST_NOT_FOUND;
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  *h_errnop = NETDB_SUCCESS;
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-netgrp.c b/glibc-compat/nss_nis/nis-netgrp.c
new file mode 100644
index 0000000000..da87f1a605
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-netgrp.c
@@ -0,0 +1,128 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <ctype.h>
+#include <errno.h>
+#include <bits/libc-lock.h>
+#include <glibc-compat/include/netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <netgroup.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Locks the static variables in this file.  */
+__libc_lock_define_initialized (static, lock)
+
+static char *data = NULL;
+static size_t data_size = 0;
+static char *cursor = NULL;;
+
+extern enum nss_status
+_nss_netgroup_parseline (char **cursor, struct __netgrent *result,
+			 char *buffer, size_t buflen);
+
+enum nss_status
+_nss_nis_setnetgrent (char *group)
+{
+  char *domain;
+  char *result;
+  int len, group_len;
+  enum nss_status status;
+
+  status = NSS_STATUS_SUCCESS;
+
+  if (group[0] == '\0')
+    return NSS_STATUS_UNAVAIL;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  __libc_lock_lock (lock);
+
+  if (data != NULL)
+    {
+      free (data);
+      data = NULL;
+      data_size = 0;
+      cursor = NULL;
+    }
+
+  group_len = strlen (group);
+
+  status = yperr2nss (yp_match (domain, "netgroup", group, group_len,
+				&result, &len));
+  if (status == NSS_STATUS_SUCCESS)
+    {
+      if (len > 0)
+	{
+	  data = malloc (len + 1);
+	  data_size = len;
+	  cursor = strncpy (data, result, len + 1);
+	  data[len] = '\0';
+	  free (result);
+	}
+      else
+	status = NSS_STATUS_NOTFOUND;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+
+enum nss_status
+_nss_nis_endnetgrent (void)
+{
+  __libc_lock_lock (lock);
+
+  if (data != NULL)
+    {
+      free (data);
+      data = NULL;
+      data_size = 0;
+      cursor = NULL;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getnetgrent_r (struct __netgrent *result, char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  if (cursor == NULL)
+    return NSS_STATUS_NOTFOUND;
+
+  __libc_lock_lock (lock);
+
+  status = _nss_netgroup_parseline (&cursor, result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
diff --git a/glibc-compat/nss_nis/nis-network.c b/glibc-compat/nss_nis/nis-network.c
new file mode 100644
index 0000000000..3accc2be41
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-network.c
@@ -0,0 +1,318 @@
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/netdb.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME netent
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_setnetent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endnetent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen,
+			  int *herrnop)
+{
+  struct parser_data *data = (void *) buffer;
+  char *domain, *result, *outkey;
+  int len, keylen, parse_res;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+      char *p;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "networks.byname",
+                                      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "networks.byname",
+                                      oldkey, oldkeylen,
+                                      &outkey, &keylen, &result, &len));
+
+      if (retval != NSS_STATUS_SUCCESS)
+        {
+          if (retval == NSS_STATUS_TRYAGAIN)
+	    {
+	      *herrnop = NETDB_INTERNAL;
+	      __set_errno (EAGAIN);
+	    }
+          return retval;
+        }
+
+      if ((size_t) (len + 1) > buflen)
+        {
+          free (result);
+          __set_errno (ERANGE);
+	  *herrnop = NETDB_INTERNAL;
+          return NSS_STATUS_TRYAGAIN;
+        }
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+      while (isspace (*p))
+        ++p;
+      free (result);
+
+      parse_res = _nss_files_parse_netent (p, net, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+	{
+	  *herrnop = NETDB_INTERNAL;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getnetent_r (struct netent *net, char *buffer, size_t buflen,
+		      int *herrnop)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getnetent_r (net, buffer, buflen, herrnop);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getnetbyname_r (const char *name, struct netent *net,
+			 char *buffer, size_t buflen, int *herrnop)
+{
+  enum nss_status retval;
+  struct parser_data *data = (void *) buffer;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      *herrnop = NETDB_INTERNAL;
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  if (buflen < sizeof *data + 1)
+    {
+      *herrnop = NETDB_INTERNAL;
+      __set_errno(ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+  else
+    {
+      /* Convert name to lowercase.  */
+      size_t namlen = strlen (name);
+      char name2[namlen + 1];
+      int i;
+
+      for (i = 0; i < namlen; ++i)
+	name2[i] = tolower (name[i]);
+      name2[i] = '\0';
+
+      retval = yperr2nss (yp_match (domain, "networks.byname", name2,
+				    namlen, &result, &len));
+    }
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	{
+	  __set_errno (EAGAIN);
+	  *herrnop = NETDB_INTERNAL;
+	}
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      *herrnop = NETDB_INTERNAL;
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_netent (p, net, data, buflen);
+
+  if (parse_res <= 0)
+    {
+      *herrnop = NETDB_INTERNAL;
+      if (parse_res == -1 && errno == ERANGE)
+	return NSS_STATUS_TRYAGAIN;
+      else
+        return NSS_STATUS_NOTFOUND;
+    }
+  else
+    return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getnetbyaddr_r (unsigned long addr, int type, struct netent *net,
+			 char *buffer, size_t buflen, int *herrnop)
+{
+  struct parser_data *data = (void *) buffer;
+  char *domain;
+  char *result;
+  int len;
+  char buf[256];
+  int blen;
+  struct in_addr in;
+  char *p;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  in = inet_makeaddr (addr, 0);
+  strcpy (buf, inet_ntoa (in));
+  blen = strlen (buf);
+
+  while (1)
+    {
+      enum nss_status retval;
+      int parse_res;
+
+      retval = yperr2nss (yp_match (domain, "networks.byaddr", buf,
+				    strlen (buf), &result, &len));
+
+	if (retval != NSS_STATUS_SUCCESS)
+	  {
+	    if (retval == NSS_STATUS_NOTFOUND)
+	      {
+		if (buf[blen - 2] == '.' && buf[blen - 1] == '0')
+		  {
+		    /* Try again, but with trailing dot(s)
+		       removed (one by one) */
+		    buf[blen - 2] = '\0';
+		    blen -= 2;
+		    continue;
+		  }
+		else
+		  return NSS_STATUS_NOTFOUND;
+	      }
+	    else
+	      {
+		if (retval == NSS_STATUS_TRYAGAIN)
+		  __set_errno (EAGAIN);
+		return retval;
+	      }
+	  }
+
+      if ((size_t) (len + 1) > buflen)
+	{
+	  free (result);
+	  __set_errno (ERANGE);
+	  *herrnop = NETDB_INTERNAL;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+        p = strncpy (buffer, result, len);
+	buffer[len] = '\0';
+	while (isspace (*p))
+	  ++p;
+	free (result);
+
+	parse_res = _nss_files_parse_netent (p, net, data, buflen);
+
+
+	if (parse_res <= 0)
+	  {
+	    *herrnop = NETDB_INTERNAL;
+	    if (parse_res == -1 && errno == ERANGE)
+	      return NSS_STATUS_TRYAGAIN;
+	    else
+	      return NSS_STATUS_NOTFOUND;
+	  }
+	else
+	  return NSS_STATUS_SUCCESS;
+    }
+}
diff --git a/glibc-compat/nss_nis/nis-proto.c b/glibc-compat/nss_nis/nis-proto.c
new file mode 100644
index 0000000000..8dff7d3687
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-proto.c
@@ -0,0 +1,280 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/netdb.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME protoent
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+__libc_lock_define_initialized (static, lock)
+
+struct response
+{
+  char *val;
+  struct response *next;
+};
+
+static struct response *start = NULL;
+static struct response *next = NULL;
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+        int invallen, char *indata)
+{
+  if (instatus != YP_TRUE)
+    return instatus;
+
+  if (inkey && inkeylen > 0 && inval && invallen > 0)
+    {
+      if (start == NULL)
+        {
+          start = malloc (sizeof (struct response));
+          next = start;
+        }
+      else
+        {
+          next->next = malloc (sizeof (struct response));
+          next = next->next;
+        }
+      next->next = NULL;
+      next->val = malloc (invallen + 1);
+      strncpy (next->val, inval, invallen);
+      next->val[invallen] = '\0';
+    }
+
+  return 0;
+}
+
+enum nss_status
+internal_nis_setprotoent (void)
+{
+  char *domainname;
+  struct ypall_callback ypcb;
+  enum nss_status status;
+
+  yp_get_default_domain (&domainname);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+        free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+
+  ypcb.foreach = saveit;
+  ypcb.data = NULL;
+  status = yperr2nss (yp_all (domainname, "protocols.bynumber", &ypcb));
+  next = start;
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_setprotoent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_setprotoent ();
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_endprotoent (void)
+{
+  __libc_lock_lock (lock);
+
+  while (start != NULL)
+    {
+      if (start->val != NULL)
+        free (start->val);
+      next = start;
+      start = start->next;
+      free (next);
+    }
+  start = NULL;
+  next = NULL;
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getprotoent_r (struct protoent *proto,
+			    char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  int parse_res;
+
+  if (start == NULL)
+    internal_nis_setprotoent ();
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      char *p;
+
+      if (next == NULL)
+        return NSS_STATUS_NOTFOUND;
+      p = strncpy (buffer, next->val, buflen);
+      next = next->next;
+
+      while (isspace (*p))
+        ++p;
+
+      parse_res = _nss_files_parse_protoent (p, proto, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getprotoent_r (struct protoent *proto, char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getprotoent_r (proto, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getprotobyname_r (const char *name, struct protoent *proto,
+			   char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  retval = yperr2nss (yp_match (domain, "protocols.byname", name,
+                                strlen (name), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_protoent (p, proto, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getprotobynumber_r (int number, struct protoent *proto,
+			     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, nlen, parse_res;
+  char buf[32];
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%d", number);
+
+  retval = yperr2nss (yp_match (domain, "protocols.bynumber", buf,
+                                nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_protoent (p, proto, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-pwd.c b/glibc-compat/nss_nis/nis-pwd.c
new file mode 100644
index 0000000000..e18c80d8ac
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-pwd.c
@@ -0,0 +1,407 @@
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/pwd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME pwent
+#define STRUCTURE passwd
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+/* Protect global state against multiple changers */
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_setpwent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endpwent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getpwent_r (struct passwd *pwd, char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  char *domain;
+  int parse_res;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+      char *result, *outkey, *result2, *p;
+      int len, keylen, len2;
+      size_t namelen;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "passwd.byname",
+                                      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "passwd.byname",
+                                      oldkey, oldkeylen,
+                                      &outkey, &keylen, &result, &len));
+
+      if (retval != NSS_STATUS_SUCCESS)
+        {
+          if (retval == NSS_STATUS_TRYAGAIN)
+            __set_errno (EAGAIN);
+          return retval;
+        }
+
+      /* Check for adjunct style secret passwords.  They can be
+	 recognized by a password starting with "##".  */
+      p = strchr (result, ':');
+      if (p != NULL	/* This better should be true in all cases.  */
+	  && p[1] == '#' && p[2] == '#'
+	  && (namelen = p - result,
+	      yp_match (domain, "passwd.adjunct.byname", result, namelen,
+			&result2, &len2)) == YPERR_SUCCESS)
+	{
+	  /* We found a passwd.adjunct entry.  Merge encrypted
+	     password therein into original result.  */
+	  char *encrypted = strchr (result2, ':');
+	  char *endp, *tmp;
+	  size_t restlen;
+
+	  if (encrypted == NULL
+	      || (endp = strchr (++encrypted, ':')) == NULL
+	      || (p = strchr (p + 1, ':')) == NULL)
+	    {
+	      /* Invalid format of the entry.  This never should happen
+		 unless the data from which the NIS table is generated is
+		 wrong.  We simply ignore it.  */
+	      free (result2);
+	      goto non_adjunct;
+	    }
+
+	  restlen = len - (p - result);
+	  if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+	    {
+	      free (result2);
+	      free (result);
+	      __set_errno (ERANGE);
+	      return NSS_STATUS_TRYAGAIN;
+	    }
+
+	  memcpy (buffer, result, namelen);
+	  tmp = buffer + namelen;
+	  *tmp++ = ':';
+	  memcpy (tmp, encrypted, endp - encrypted);
+	  tmp += endp - encrypted;
+	  memcpy (tmp, p, restlen + 1);
+	  p = buffer;
+
+	  free (result2);
+	}
+      else
+	{
+	non_adjunct:
+	  if ((size_t) (len + 1) > buflen)
+	    {
+	      free (result);
+	      __set_errno (ERANGE);
+	      return NSS_STATUS_TRYAGAIN;
+	    }
+
+	  p = strncpy (buffer, result, len);
+	  buffer[len] = '\0';
+	}
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+      while (isspace (*p))
+        ++p;
+      free (result);
+
+      parse_res = _nss_files_parse_pwent (p, pwd, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getpwent_r (struct passwd *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getpwent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getpwnam_r (const char *name, struct passwd *pwd,
+		     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *result2, *p;
+  int len, len2, parse_res;
+  size_t namelen;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  namelen = strlen (name);
+
+  retval = yperr2nss (yp_match (domain, "passwd.byname", name,
+				namelen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  /* Check for adjunct style secret passwords.  They can be recognized
+     by a password starting with "##".  */
+  p = strchr (result, ':');
+  if (p != NULL	/* This better should be true in all cases.  */
+      && p[1] == '#' && p[2] == '#'
+      && (namelen = p - result,
+	  yp_match (domain, "passwd.adjunct.byname", name, namelen,
+		    &result2, &len2)) == YPERR_SUCCESS)
+    {
+      /* We found a passwd.adjunct entry.  Merge encrypted password
+	 therein into original result.  */
+      char *encrypted = strchr (result2, ':');
+      char *endp, *tmp;
+      size_t restlen;
+
+      if (encrypted == NULL
+	  || (endp = strchr (++encrypted, ':')) == NULL
+	  || (p = strchr (p + 1, ':')) == NULL)
+	{
+	  /* Invalid format of the entry.  This never should happen
+	     unless the data from which the NIS table is generated is
+	     wrong.  We simply ignore it.  */
+	  free (result2);
+	  goto non_adjunct;
+	}
+
+      restlen = len - (p - result);
+      if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+	{
+	  free (result2);
+	  free (result);
+	  __set_errno (ERANGE);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      memcpy (buffer, name, namelen);
+      tmp = buffer + namelen;
+      *tmp++ = ':';
+      memcpy (tmp, encrypted, endp - encrypted);
+      tmp += endp - encrypted;
+      memcpy (tmp, p, restlen + 1);
+      p = buffer;
+
+      free (result2);
+    }
+  else
+    {
+    non_adjunct:
+      if ((size_t) (len + 1) > buflen)
+	{
+	  free (result);
+	  __set_errno (ERANGE);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+    }
+
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_pwent (p, pwd, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getpwuid_r (uid_t uid, struct passwd *pwd,
+		     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p, *result2;
+  int len, nlen, parse_res, len2;
+  char buf[32];
+  size_t namelen;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%d", uid);
+
+  retval = yperr2nss (yp_match (domain, "passwd.byuid", buf,
+				nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  /* Check for adjunct style secret passwords.  They can be recognized
+     by a password starting with "##".  */
+  p = strchr (result, ':');
+  if (p != NULL	/* This better should be true in all cases.  */
+      && p[1] == '#' && p[2] == '#'
+      && (namelen = p - result,
+	  yp_match (domain, "passwd.adjunct.byname", result, namelen,
+		    &result2, &len2)) == YPERR_SUCCESS)
+    {
+      /* We found a passwd.adjunct entry.  Merge encrypted password
+	 therein into original result.  */
+      char *encrypted = strchr (result2, ':');
+      char *endp, *tmp;
+      size_t restlen;
+
+      if (encrypted == NULL
+	  || (endp = strchr (++encrypted, ':')) == NULL
+	  || (p = strchr (p + 1, ':')) == NULL)
+	{
+	  /* Invalid format of the entry.  This never should happen
+	     unless the data from which the NIS table is generated is
+	     wrong.  We simply ignore it.  */
+	  free (result2);
+	  goto non_adjunct;
+	}
+
+      restlen = len - (p - result);
+      if ((size_t) (namelen + (endp - encrypted) + restlen + 2) > buflen)
+	{
+	  free (result2);
+	  free (result);
+	  __set_errno (ERANGE);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      memcpy (buffer, result, namelen);
+      tmp = buffer + namelen;
+      *tmp++ = ':';
+      memcpy (tmp, encrypted, endp - encrypted);
+      tmp += endp - encrypted;
+      memcpy (tmp, p, restlen + 1);
+      p = buffer;
+
+      free (result2);
+    }
+  else
+    {
+    non_adjunct:
+      if ((size_t) (len + 1) > buflen)
+	{
+	  free (result);
+	  __set_errno (ERANGE);
+	  return NSS_STATUS_TRYAGAIN;
+	}
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+    }
+
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_pwent (p, pwd, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-rpc.c b/glibc-compat/nss_nis/nis-rpc.c
new file mode 100644
index 0000000000..b265fcdecb
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-rpc.c
@@ -0,0 +1,295 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/netdb.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME rpcent
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+__libc_lock_define_initialized (static, lock)
+
+struct response_t
+{
+  char *val;
+  struct response_t *next;
+};
+
+struct intern_t
+{
+  struct response_t *start;
+  struct response_t *next;
+};
+typedef struct intern_t intern_t;
+
+static intern_t intern = {NULL, NULL};
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+        int invallen, char *indata)
+{
+  intern_t *intern = (intern_t *)indata;
+
+  if (instatus != YP_TRUE)
+    return instatus;
+
+  if (inkey && inkeylen > 0 && inval && invallen > 0)
+    {
+      if (intern->start == NULL)
+        {
+          intern->start = malloc (sizeof (struct response_t));
+          intern->next = intern->start;
+        }
+      else
+        {
+          intern->next->next = malloc (sizeof (struct response_t));
+          intern->next = intern->next->next;
+        }
+      intern->next->next = NULL;
+      intern->next->val = malloc (invallen + 1);
+      strncpy (intern->next->val, inval, invallen);
+      intern->next->val[invallen] = '\0';
+    }
+
+  return 0;
+}
+
+static enum nss_status
+internal_nis_setrpcent (intern_t *intern)
+{
+  char *domainname;
+  struct ypall_callback ypcb;
+  enum nss_status status;
+
+  if (yp_get_default_domain (&domainname))
+    return NSS_STATUS_UNAVAIL;
+
+  while (intern->start != NULL)
+    {
+      if (intern->start->val != NULL)
+        free (intern->start->val);
+      intern->next = intern->start;
+      intern->start = intern->start->next;
+      free (intern->next);
+    }
+  intern->start = NULL;
+
+  ypcb.foreach = saveit;
+  ypcb.data = (char *)intern;
+  status = yperr2nss (yp_all(domainname, "rpc.bynumber", &ypcb));
+  intern->next = intern->start;
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_setrpcent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_setrpcent (&intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+static enum nss_status
+internal_nis_endrpcent (intern_t *intern)
+{
+  while (intern->start != NULL)
+    {
+      if (intern->start->val != NULL)
+        free (intern->start->val);
+      intern->next = intern->start;
+      intern->start = intern->start->next;
+      free (intern->next);
+    }
+  intern->start = NULL;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endrpcent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_endrpcent (&intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+static enum nss_status
+internal_nis_getrpcent_r (struct rpcent *rpc, char *buffer, size_t buflen,
+			  intern_t *data)
+{
+  struct parser_data *pdata = (void *) buffer;
+  int parse_res;
+  char *p;
+
+  if (data->start == NULL)
+    internal_nis_setrpcent (data);
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      if (data->next == NULL)
+        return NSS_STATUS_NOTFOUND;
+      p = strncpy (buffer, data->next->val, buflen);
+      data->next = data->next->next;
+      while (isspace (*p))
+        ++p;
+
+      parse_res = _nss_files_parse_rpcent (p, rpc, pdata, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+	return NSS_STATUS_TRYAGAIN;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getrpcent_r (struct rpcent *rpc, char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getrpcent_r (rpc, buffer, buflen, &intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getrpcbyname_r (const char *name, struct rpcent *rpc,
+			 char *buffer, size_t buflen)
+{
+  intern_t data = {NULL, NULL};
+  enum nss_status status;
+  int found;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  status = internal_nis_setrpcent (&data);
+  if (status != NSS_STATUS_SUCCESS)
+    return status;
+
+  found = 0;
+  while (!found &&
+         ((status = internal_nis_getrpcent_r (rpc, buffer, buflen, &data))
+          == NSS_STATUS_SUCCESS))
+    {
+      if (strcmp (rpc->r_name, name) == 0)
+	found = 1;
+      else
+	{
+	  int i = 0;
+
+	  while (rpc->r_aliases[i] != NULL)
+	    {
+	      if (strcmp (rpc->r_aliases[i], name) == 0)
+		{
+		  found = 1;
+		  break;
+		}
+	      else
+		++i;
+	    }
+	}
+    }
+
+  internal_nis_endrpcent (&data);
+
+  if (!found && status == NSS_STATUS_SUCCESS)
+    return NSS_STATUS_NOTFOUND;
+  else
+    return status;
+}
+
+enum nss_status
+_nss_nis_getrpcbynumber_r (int number, struct rpcent *rpc,
+			   char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, nlen, parse_res;
+  char buf[32];
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  nlen = sprintf (buf, "%d", number);
+
+  retval = yperr2nss (yp_match (domain, "rpc.bynumber", buf,
+				 nlen, &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	__set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_rpcent (p, rpc, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}
diff --git a/glibc-compat/nss_nis/nis-service.c b/glibc-compat/nss_nis/nis-service.c
new file mode 100644
index 0000000000..75b871e440
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-service.c
@@ -0,0 +1,280 @@
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <glibc-compat/include/netdb.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME servent
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+__libc_lock_define_initialized (static, lock)
+
+struct response_t
+{
+  char *val;
+  struct response_t *next;
+};
+
+struct intern_t
+{
+  struct response_t *start;
+  struct response_t *next;
+};
+typedef struct intern_t intern_t;
+
+static intern_t intern = { NULL, NULL };
+
+static int
+saveit (int instatus, char *inkey, int inkeylen, char *inval,
+        int invallen, char *indata)
+{
+  intern_t *intern = (intern_t *) indata;
+
+  if (instatus != YP_TRUE)
+    return instatus;
+
+  if (inkey && inkeylen > 0 && inval && invallen > 0)
+    {
+      if (intern->start == NULL)
+        {
+          intern->start = malloc (sizeof (struct response_t));
+          intern->next = intern->start;
+        }
+      else
+        {
+          intern->next->next = malloc (sizeof (struct response_t));
+          intern->next = intern->next->next;
+        }
+      intern->next->next = NULL;
+      intern->next->val = malloc (invallen + 1);
+      strncpy (intern->next->val, inval, invallen);
+      intern->next->val[invallen] = '\0';
+    }
+
+  return 0;
+}
+
+static enum nss_status
+internal_nis_setservent (intern_t *intern)
+{
+  char *domainname;
+  struct ypall_callback ypcb;
+  enum nss_status status;
+
+  if (yp_get_default_domain (&domainname))
+    return NSS_STATUS_UNAVAIL;
+
+  while (intern->start != NULL)
+    {
+      if (intern->start->val != NULL)
+        free (intern->start->val);
+      intern->next = intern->start;
+      intern->start = intern->start->next;
+      free (intern->next);
+    }
+  intern->start = NULL;
+
+  ypcb.foreach = saveit;
+  ypcb.data = (char *) intern;
+  status = yperr2nss (yp_all (domainname, "services.byname", &ypcb));
+  intern->next = intern->start;
+
+  return status;
+}
+enum nss_status
+_nss_nis_setservent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_setservent (&intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+static enum nss_status
+internal_nis_endservent (intern_t * intern)
+{
+  while (intern->start != NULL)
+    {
+      if (intern->start->val != NULL)
+        free (intern->start->val);
+      intern->next = intern->start;
+      intern->start = intern->start->next;
+      free (intern->next);
+    }
+  intern->start = NULL;
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endservent (void)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_endservent (&intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+static enum nss_status
+internal_nis_getservent_r (struct servent *serv, char *buffer,
+			   size_t buflen, intern_t *data)
+{
+  struct parser_data *pdata = (void *) buffer;
+  int parse_res;
+  char *p;
+
+  if (data->start == NULL)
+    internal_nis_setservent (data);
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      if (data->next == NULL)
+	return NSS_STATUS_NOTFOUND;
+      p = strncpy (buffer, data->next->val, buflen);
+      data->next = data->next->next;
+      while (isspace (*p))
+        ++p;
+
+      parse_res = _nss_files_parse_servent (p, serv, pdata, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getservent_r (struct servent *serv, char *buffer, size_t buflen)
+{
+  enum nss_status status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getservent_r (serv, buffer, buflen, &intern);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getservbyname_r (const char *name, char *protocol,
+			  struct servent *serv, char *buffer, size_t buflen)
+{
+  intern_t data = { NULL, NULL };
+  enum nss_status status;
+  int found;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  status = internal_nis_setservent (&data);
+  if (status != NSS_STATUS_SUCCESS)
+    return status;
+
+  found = 0;
+  while (!found &&
+         ((status = internal_nis_getservent_r (serv, buffer, buflen, &data))
+          == NSS_STATUS_SUCCESS))
+    {
+      if (protocol == NULL || strcmp (serv->s_proto, protocol) == 0)
+	{
+	  char **cp;
+
+	  if (strcmp (serv->s_name, name) == 0)
+	    found = 1;
+	  else
+	    for (cp = serv->s_aliases; *cp; cp++)
+	      if (strcmp (name, *cp) == 0)
+		found = 1;
+	}
+    }
+
+  internal_nis_endservent (&data);
+
+  if (!found && status == NSS_STATUS_SUCCESS)
+    return NSS_STATUS_NOTFOUND;
+  else
+    return status;
+}
+
+enum nss_status
+_nss_nis_getservbyport_r (int port, char *protocol, struct servent *serv,
+			  char *buffer, size_t buflen)
+{
+  intern_t data = { NULL, NULL };
+  enum nss_status status;
+  int found;
+
+  if (protocol == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  status = internal_nis_setservent (&data);
+  if (status != NSS_STATUS_SUCCESS)
+    return status;
+
+  found = 0;
+  while (!found &&
+         ((status = internal_nis_getservent_r (serv, buffer, buflen, &data))
+          == NSS_STATUS_SUCCESS))
+    {
+      if (htons (serv->s_port) == port)
+        {
+          if  (strcmp (serv->s_proto, protocol) == 0)
+            {
+              found = 1;
+            }
+        }
+    }
+
+  internal_nis_endservent (&data);
+
+  if (!found && status == NSS_STATUS_SUCCESS)
+    return NSS_STATUS_NOTFOUND;
+  else
+    return status;
+}
diff --git a/glibc-compat/nss_nis/nis-spwd.c b/glibc-compat/nss_nis/nis-spwd.c
new file mode 100644
index 0000000000..d7857b2c88
--- /dev/null
+++ b/glibc-compat/nss_nis/nis-spwd.c
@@ -0,0 +1,201 @@
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <nss.h>
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <glibc-compat/include/shadow.h>
+#include <bits/libc-lock.h>
+#include <rpcsvc/yp.h>
+#include <rpcsvc/ypclnt.h>
+
+#include "nss-nis.h"
+
+/* Get the declaration of the parser function.  */
+#define ENTNAME spent
+#define STRUCTURE spwd
+#define EXTERN_PARSER
+#include "../nss_files/files-parse.c"
+
+/* Protect global state against multiple changers */
+__libc_lock_define_initialized (static, lock)
+
+static bool_t new_start = 1;
+static char *oldkey = NULL;
+static int oldkeylen = 0;
+
+enum nss_status
+_nss_nis_setspent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_endspent (void)
+{
+  __libc_lock_lock (lock);
+
+  new_start = 1;
+  if (oldkey != NULL)
+    {
+      free (oldkey);
+      oldkey = NULL;
+      oldkeylen = 0;
+    }
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nis_getspent_r (struct spwd *sp, char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  char *domain, *result, *outkey;
+  int len, keylen, parse_res;
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  /* Get the next entry until we found a correct one. */
+  do
+    {
+      enum nss_status retval;
+      char *p;
+
+      if (new_start)
+        retval = yperr2nss (yp_first (domain, "shadow.byname",
+                                      &outkey, &keylen, &result, &len));
+      else
+        retval = yperr2nss ( yp_next (domain, "shadow.byname",
+                                      oldkey, oldkeylen,
+                                      &outkey, &keylen, &result, &len));
+
+      if (retval != NSS_STATUS_SUCCESS)
+        {
+          if (retval == NSS_STATUS_TRYAGAIN)
+            __set_errno (EAGAIN);
+          return retval;
+        }
+
+      if ((size_t) (len + 1) > buflen)
+        {
+          free (result);
+          __set_errno (ERANGE);
+          return NSS_STATUS_TRYAGAIN;
+        }
+
+      p = strncpy (buffer, result, len);
+      buffer[len] = '\0';
+      while (isspace (*p))
+        ++p;
+      free (result);
+
+      parse_res = _nss_files_parse_spent (p, sp, data, buflen);
+      if (parse_res == -1 && errno == ERANGE)
+        return NSS_STATUS_TRYAGAIN;
+
+      free (oldkey);
+      oldkey = outkey;
+      oldkeylen = keylen;
+      new_start = 0;
+    }
+  while (!parse_res);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nis_getspent_r (struct spwd *result, char *buffer, size_t buflen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_nis_getspent_r (result, buffer, buflen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+enum nss_status
+_nss_nis_getspnam_r (const char *name, struct spwd *sp,
+		     char *buffer, size_t buflen)
+{
+  struct parser_data *data = (void *) buffer;
+  enum nss_status retval;
+  char *domain, *result, *p;
+  int len, parse_res;
+
+  if (name == NULL)
+    {
+      __set_errno (EINVAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (yp_get_default_domain (&domain))
+    return NSS_STATUS_UNAVAIL;
+
+  retval = yperr2nss (yp_match (domain, "shadow.byname", name,
+				strlen (name), &result, &len));
+
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+        __set_errno (EAGAIN);
+      return retval;
+    }
+
+  if ((size_t) (len + 1) > buflen)
+    {
+      free (result);
+      __set_errno (ERANGE);
+      return NSS_STATUS_TRYAGAIN;
+    }
+
+  p = strncpy (buffer, result, len);
+  buffer[len] = '\0';
+  while (isspace (*p))
+    ++p;
+  free (result);
+
+  parse_res = _nss_files_parse_spent (p, sp, data, buflen);
+
+  if (parse_res == -1 && errno == ERANGE)
+    return NSS_STATUS_TRYAGAIN;
+  else if (parse_res == 0)
+    return NSS_STATUS_NOTFOUND;
+
+  return NSS_STATUS_SUCCESS;
+}