1 files changed, 180 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/net/nsswitch.h b/newlib/libc/sys/linux/net/nsswitch.h
new file mode 100644
index 000000000..7ee6d5e4b
--- /dev/null
+++ b/newlib/libc/sys/linux/net/nsswitch.h
@@ -0,0 +1,180 @@
+/* Copyright (C) 1996-1999,2001,2002,2003,2004 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _NSSWITCH_H
+#define _NSSWITCH_H	1
+
+/* This is an *internal* header.  */
+
+#include <arpa/nameser.h>
+#include <netinet/in.h>
+#include <nss.h>
+#include <resolv.h>
+#include <search.h>
+#include <dlfcn.h>
+#include <libc-symbols.h>
+
+/* Actions performed after lookup finished.  */
+typedef enum
+{
+  NSS_ACTION_CONTINUE,
+  NSS_ACTION_RETURN
+} lookup_actions;
+
+
+typedef struct service_library
+{
+  /* Name of service (`files', `dns', `nis', ...).  */
+  const char *name;
+  /* Pointer to the loaded shared library.  */
+  void *lib_handle;
+  /* And the link to the next entry.  */
+  struct service_library *next;
+} service_library;
+
+
+/* For mapping a function name to a function pointer.  It is known in
+   nsswitch.c:nss_lookup_function that a string pointer for the lookup key
+   is the first member.  */
+typedef struct
+{
+  const char *fct_name;
+  void *fct_ptr;
+} known_function;
+
+
+typedef struct service_user
+{
+  /* And the link to the next entry.  */
+  struct service_user *next;
+  /* Action according to result.  */
+  lookup_actions actions[5];
+  /* Link to the underlying library object.  */
+  service_library *library;
+  /* Collection of known functions.  */
+  struct entry *known;
+  /* Name of the service (`files', `dns', `nis', ...).  */
+  char name[0];
+} service_user;
+
+/* To access the action based on the status value use this macro.  */
+#define nss_next_action(ni, status) ((ni)->actions[2 + status])
+
+
+typedef struct name_database_entry
+{
+  /* And the link to the next entry.  */
+  struct name_database_entry *next;
+  /* List of service to be used.  */
+  service_user *service;
+  /* Name of the database.  */
+  char name[0];
+} name_database_entry;
+
+
+typedef struct name_database
+{
+  /* List of all known databases.  */
+  name_database_entry *entry;
+  /* List of libraries with service implementation.  */
+  service_library *library;
+} name_database;
+
+
+/* Interface functions for NSS.  */
+
+/* Get the data structure representing the specified database.
+   If there is no configuration for this database in the file,
+   parse a service list from DEFCONFIG and use that.  More
+   than one function can use the database.  */
+extern int __nss_database_lookup (const char *database,
+				  const char *alternative_name,
+				  const char *defconfig, service_user **ni);
+libc_hidden_proto (__nss_database_lookup)
+
+/* Put first function with name FCT_NAME for SERVICE in FCTP.  The
+   position is remembered in NI.  The function returns a value < 0 if
+   an error occurred or no such function exists.  */
+extern int __nss_lookup (service_user **ni, const char *fct_name, void **fctp);
+
+/* Determine the next step in the lookup process according to the
+   result STATUS of the call to the last function returned by
+   `__nss_lookup' or `__nss_next'.  NI specifies the last function
+   examined.  The function return a value > 0 if the process should
+   stop with the last result of the last function call to be the
+   result of the entire lookup.  The returned value is 0 if there is
+   another function to use and < 0 if an error occurred.
+
+   If ALL_VALUES is nonzero, the return value will not be > 0 as long as
+   there is a possibility the lookup process can ever use following
+   services.  In other words, only if all four lookup results have
+   the action RETURN associated the lookup process stops before the
+   natural end.  */
+extern int __nss_next (service_user **ni, const char *fct_name, void **fctp,
+		       int status, int all_values);
+libc_hidden_proto (__nss_next)
+
+/* Search for the service described in NI for a function named FCT_NAME
+   and return a pointer to this function if successful.  */
+extern void *__nss_lookup_function (service_user *ni, const char *fct_name);
+libc_hidden_proto (__nss_lookup_function)
+
+
+/* Called by NSCD to disable recursive calls.  */
+extern void __nss_disable_nscd (void);
+
+
+typedef int (*db_lookup_function) (service_user **, const char *, void **)
+     internal_function;
+typedef enum nss_status (*setent_function) (int);
+typedef enum nss_status (*endent_function) (void);
+typedef enum nss_status (*getent_function) (void *, char *, size_t,
+					    int *, int *);
+typedef int (*getent_r_function) (void *, char *, size_t,
+				  void **result, int *);
+
+extern void __nss_setent (const char *func_name,
+			  db_lookup_function lookup_fct,
+			  service_user **nip, service_user **startp,
+			  service_user **last_nip, int stayon,
+			  int *stayon_tmp, int res);
+extern void __nss_endent (const char *func_name,
+			  db_lookup_function lookup_fct,
+			  service_user **nip, service_user **startp,
+			  service_user **last_nip, int res);
+extern int __nss_getent_r (const char *getent_func_name,
+			   const char *setent_func_name,
+			   db_lookup_function lookup_fct,
+			   service_user **nip, service_user **startp,
+			   service_user **last_nip, int *stayon_tmp,
+			   int res,
+			   void *resbuf, char *buffer, size_t buflen,
+			   void **result, int *h_errnop);
+extern void *__nss_getent (getent_r_function func,
+			   void **resbuf, char **buffer, size_t buflen,
+			   size_t *buffer_size, int *h_errnop);
+struct hostent;
+extern int __nss_hostname_digits_dots (const char *name,
+				       struct hostent *resbuf, char **buffer,
+				       size_t *buffer_size, size_t buflen,
+				       struct hostent **result,
+				       enum nss_status *status, int af,
+				       int *h_errnop);
+libc_hidden_proto (__nss_hostname_digits_dots)
+
+#endif	/* nsswitch.h */