Tue Jun 25 02:59:11 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> cvs/libc-960625

	* malloc/malloc.h: Declare malloc_object_allocated_size, malloc_walk.
	* malloc/Makefile (dist-routines): Add malloc-size, malloc-walk.
	* malloc/malloc-size.c: New file.
	* malloc/malloc-walk.c: New file.

	* malloc/malloc-find.c (malloc_find_object_address): Return null if
	PTR is outside the heap.

	* elf/dl-load.c (_dl_map_object): If the requested name matches the
 	soname of a loaded object, use that object.

Mon Jun 24 19:57:01 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* Makefile (subdirs): Add nss.

	* inet/Makefile (routines): Add getrpcent, getrpcbyname,
	getrpcbynumber, getrpcent_r, getrpcbyname_r, getrpcbynumber_r.
	* inet/getrpcbynumber_r.c: New file.
	* inet/getrpcbynumber.c: New file.
	* inet/getrpcbyname.c: New file.
	* inet/getrpcbyname_r.c: New file.
	* inet/getrpcent_r.c: New file.
	* inet/getrpcent.c: New file.
	* nss/rpc-lookup.c: New file.
	* nss/nss_files/files-rpc.c: New file.
	* nss/Makefile (routines): Add rpc-lookup.
	(libnss_files-routines): Add files-rpc.
	* sunrpc/Makefile (routines): Remove getrpcent.
	* sunrpc/getrpcent.c: File removed.

	* nss/getXXent_r.c (REENTRANT_GETNAME): Clear NO_MORE when NIP is
	non-null on entry.

	* Makeconfig (rpath-link): Add $(nssobjdir).
	(nssobjdir): New variable.

	* Makerules: Move shared library building before objects rules, so
	versions are known before extra-lib.mk gets included.
	* extra-lib.mk (lib-noranlib): Depend on the shared object too.

	* pwd/getpwuid.c: Rewritten using nss.
	* pwd/getpwnam.c: Likewise.
	* pwd/getpwent.c: Likewise.
	* grp/getgrnam.c: Likewise.
	* grp/getgrgid.c: Likewise.
	* grp/getgrent.c: Likewise.
	* pwd/Makefile (routines): Add getpwent_r, getpwnam_r, getpwuid_r.
	* pwd/getpwent_r.c: New file.
	* pwd/getpwnam_r.c: New file.
	* pwd/getpwuid_r.c: New file.
	* grp/Makefile (routines): Add getgrent_r, getgrgid_r, getgrnam_r.
	* grp/getgrnam_r.c: New file.
	* grp/getgrgid_r.c: New file.
	* grp/getgrent_r.c: New file.
	* grp/Makefile (routines): Remove grpopen, grpread.
	* pwd/Makefile (routines): Remove pwdopen, pwdread.
	* grp/grpopen.c, grp/grpread.c, pwd/pwdopen.c, pwd/pwdread.c: Removed.

	* pwd/fgetpwent.c: Rewritten using files-parse.c.
	* grp/fgetgrent.c: Likewise.

	* nss/Makefile (routines): Add grp-lookup and pwd-lookup.
	* nss/pwd-lookup.c, nss/grp-lookup.c: New files.
	* nss/nss_files/files-grp.c: New file.
	* nss/nss_files/files-pwd.c: New file.

	* nss/Makefile (subdir-dirs): New variable; use it in vpath.

	* nss/nss_files/files-parse.c: New file.
	* nss/nss_files/files-XXX.c: New file.
	* nss/nss_files/files-hosts.c, nss/nss_files/files-proto.c,
	nss/nss_files/files-service.c, nss/nss_files/files-network.c:
	Rewritten using them.

	* nss/Makefile (libnss_files-routines): Remove files-host.
	Add files-hosts, files-grp, files-pwd.

	* nss/nss_dns/dns-network.c: Don't include <pthread.h>.

Mon Jun 24 22:39:12 1996  Richard Henderson  <rth@tamu.edu>

	* sysdeps/alpha/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
	A .plt entry now loads the .rela.plt offset directly rather
	than making us calculate it.

Sun Jun 23 15:24:05 1996  Roland McGrath  <roland@delasyd.gnu.ai.mit.edu>

	* time/Makefile ($(installed-localtime-file) rule): Do
	$(make-target-directory) first.

	* resolv.h: Fix wrapper for resolv/resolv.h.

	* configure.in (ld --no-whole-archive check): Use AC_TRY_COMMAND.
	Compile dummy file and pass -nostdlib -nostartfiles so as not to
	require installed libraries.

	* shlib-versions (*-*-*): Set libresolv=2, libnss_files=1,
	libnss_dns=1.

Sun Jun 23 19:42:05 1996  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/netdb.h (_PATH_NSSWITCH_CONF): New macro.

	* inet/herrno.c: New file.

	* resolv/res_init.c: Remove res_hconf calls.

	* nss/Makefile, nss/XXX-lookup.c, nss/file-lookup.c,
	nss/getXXbyYY.c, nss/getXXbyYY_r.c, nss/getXXent.c,
	nss/getXXent_r.c, nss/host-lookup.c, nss/network-lookup.c,
	nss/nsswitch.c, nss/nsswitch.h, nss/proto-lookup.c,
	nss/service-lookup.c: New files.  Implementation of name
	service switch, following the approach in Solaris.
	Interface specification and general structure inspired by Peter
	Eriksson <pen@lysator.liu.se>.
	* nss/nss_files/files-host.c, nss/nss_files/files-network.c,
	nss/nss_files/files-proto.c, nss/nss_files/files-service.c:
	Implementation of libnss_files.so module for file based databases
	in NSS service.
	* nss/nss_dns/dns-host.c, nss/nss_dns/dns-network.c: Implementation
        if libnss_dns.so module for DNS name lookup in NSS service.

	* inet/getproto.c, inet/getprtent.c, inet/getprtname.c,
	inet/getservent.c, inet/getsrvbynm.c, inet/getsrvbypt.c:
	Changed to serve as interface to NSS.
	* inet/gethstbyad.c, inet/gethstbyad_r.c, inet/gethstbynm.c,
	inet/gethstbynm2.c, inet/gethstbynm2_r.c, inet/gethstbynm_r.c,
	inet/gethstent.c, inet/gethstent_r.c, inet/getnetbynm.c,
	inet/getnetbynm_r.c, inet/getnetbypt.c, inet/getnetbypt_r.c,
	inet/getnetent.c, inet/getnetent_r.c, inet/getproto_r.c,
	inet/getprtent_r.c, inet/getprtname_r.c, inet/getservent_r.c,
	inet/getsrvbynm_r.c, inet/getsrvbypt_r.c: New files.  Implement
	interfaces to NSS, including reentrant functions.

	* resolv/getnetbyaddr.c, resolv/getnetbyname.c, resolv/getnetent.c,
	resolv/sethostent.c: Removed:  Obsoleted by NSS.

	* resolv/mapv4v6addr.h, resolv/mapv4v6hostent.h: Extracted from
	gethnamaddr.c.  These private functions are now used in more
	than one file.

	* resolv/inet_pton.c, resolv/gethnamaddr.c: Updated to bind-4.9.4-T5B.

Sat Jun 22 16:49:47 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* rpm/Makefile ($(config)): Make sure the word list in the for
	loop is syntactically non-empty.

9 files changed, 807 insertions, 0 deletions

diff --git a/nss/nss_files/files-XXX.c b/nss/nss_files/files-XXX.c
new file mode 100644
index 0000000000..40bb7df81e
--- /dev/null
+++ b/nss/nss_files/files-XXX.c
@@ -0,0 +1,221 @@
+/* Common code for file-based databases in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <stdio.h>
+#include <ctype.h>
+#include <assert.h>
+#include <libc-lock.h>
+#include "nsswitch.h"
+
+/* These symbols are defined by the including source file:
+
+   ENTNAME -- database name of the structure and functions (hostent, pwent).
+   STRUCTURE -- struct name, define only if not ENTNAME (passwd, group).
+   DATAFILE -- string of the database file's name.
+
+   NEED_H_ERRNO - defined iff an arg `int *herrnop' is used.
+   MIDLINE_COMMENTS - defined iff # before \n terminates a database line.
+*/
+
+#define ENTNAME_r CONCAT(ENTNAME,_r)
+
+#ifdef NEED_H_ERRNO
+#define H_ERRNO_PROTO	, int *herrnop
+#define H_ERRNO_ARG	, herrnop
+#define H_ERRNO_SET(val) (*herrnop = (val))
+#else
+#define H_ERRNO_PROTO
+#define H_ERRNO_ARG
+#define H_ERRNO_SET(val) ((void) 0)
+#endif
+
+/* Locks the static variables in this file.  */
+__libc_lock_define_initialized (static, lock);
+
+/* Maintenance of the shared stream open on the database file.  */
+
+static FILE *stream;
+static int keep_stream;
+
+/* Open database file if not already opened.  */
+static int
+internal_setent (int stayopen)
+{
+  int status = NSS_STATUS_SUCCESS;
+
+  if (stream == NULL)
+    {
+      stream = fopen (DATAFILE, "r");
+
+      if (stream == NULL)
+	status = NSS_STATUS_UNAVAIL;
+    }
+  else
+    rewind (stream);
+
+  /* Remember STAYOPEN flag.  */
+  if (stream != NULL)
+    keep_stream |= stayopen;
+
+  return status;
+}
+
+
+/* Thread-safe, exported version of that.  */
+int
+CONCAT(_nss_files_set,ENTNAME) (int stayopen)
+{
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_setent (stayopen);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+
+/* Close the database file.  */
+static void
+internal_endent (void)
+{
+  if (stream != NULL)
+    {
+      fclose (stream);
+      stream = NULL;
+    }
+
+  /* Reset STAYOPEN flag.  */
+  keep_stream = 0;
+}
+
+
+/* Thread-safe, exported version of that.  */
+int
+CONCAT(_nss_files_end,ENTNAME) (void)
+{
+  __libc_lock_lock (lock);
+
+  internal_endent ();
+
+  __libc_lock_unlock (lock);
+
+  return NSS_STATUS_SUCCESS;
+}
+
+/* Parsing the database file into `struct STRUCTURE' data structures.  */
+
+static enum nss_status
+internal_getent (struct STRUCTURE *result,
+		 char *buffer, int buflen H_ERRNO_PROTO)
+{
+  char *p;
+  struct parser_data *data = (void *) buffer;
+  int linebuflen = buffer + buflen - data->linebuffer;
+
+  /* Someone called internal_setent before calling us, so if the
+     stream is not open now the file could not be opened.  */
+  if (stream == NULL)
+    {
+      H_ERRNO_SET (NETDB_INTERNAL);
+      return NSS_STATUS_UNAVAIL;
+    }
+
+  if (buflen < sizeof *data + 1)
+    {
+      errno = ERANGE;
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  do
+    {
+      p = fgets (data->linebuffer, linebuflen, stream);
+      if (p == NULL)
+	{
+	  /* End of file or read error.  */
+	  H_ERRNO_SET (HOST_NOT_FOUND);
+	  return NSS_STATUS_NOTFOUND;
+	}
+
+      /* Skip leading blanks.  */
+      while (isspace (*p))
+	++p;
+    } while (*p == '\0' || *p == '#' ||	/* Ignore empty and comment lines.  */
+	     /* Parse the line.  If it is invalid, loop to
+		get the next line of the file to parse.  */
+	     ! parse_line (p, result, data, buflen));
+
+  /* Filled in RESULT with the next entry from the database file.  */
+  return NSS_STATUS_SUCCESS;
+}
+
+
+/* Return the next entry from the database file, doing locking.  */
+int
+CONCAT(_nss_files_get,ENTNAME_r) (struct STRUCTURE *result,
+				  char *buffer, int buflen H_ERRNO_PROTO)
+{
+  /* Return next entry in host file.  */
+  int status;
+
+  __libc_lock_lock (lock);
+
+  status = internal_getent (result, buffer, buflen H_ERRNO_ARG);
+
+  __libc_lock_unlock (lock);
+
+  return status;
+}
+
+/* Macro for defining lookup functions for this file-based database.
+
+   NAME is the name of the lookup; e.g. `hostbyname'.
+
+   PROTO describes the arguments for the lookup key;
+   e.g. `const char *hostname'.
+
+   BREAK_IF_MATCH is a block of code which compares `struct STRUCTURE *result'
+   to the lookup key arguments and does `break;' if they match.  */
+
+#define DB_LOOKUP(name, break_if_match, proto...)			      \
+enum nss_status								      \
+_nss_files_get##name##_r (proto,					      \
+			  struct STRUCTURE *result,			      \
+			  char *buffer, int buflen H_ERRNO_PROTO)	      \
+{									      \
+  enum nss_status status;						      \
+									      \
+  __libc_lock_lock (lock);						      \
+									      \
+  /* Reset file pointer to beginning or open file.  */			      \
+  internal_setent (keep_stream);					      \
+									      \
+  while ((status = internal_getent (result, buffer, buflen H_ERRNO_ARG))      \
+	 == NSS_STATUS_SUCCESS)						      \
+    { break_if_match }							      \
+									      \
+  if (! keep_stream)							      \
+    internal_endent ();							      \
+									      \
+  __libc_lock_unlock (lock);						      \
+									      \
+  return status;							      \
+}
diff --git a/nss/nss_files/files-grp.c b/nss/nss_files/files-grp.c
new file mode 100644
index 0000000000..6d528a6df2
--- /dev/null
+++ b/nss/nss_files/files-grp.c
@@ -0,0 +1,49 @@
+/* Group file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <grp.h>
+
+#define STRUCTURE	group
+#define ENTNAME		grent
+#define DATAFILE	"/etc/group"
+struct grent_data {};
+
+#define TRAILING_LIST_MEMBER		gr_mem
+#define TRAILING_LIST_SEPARATOR_P(c)	((c) == ',')
+#include "files-parse.c"
+LINE_PARSER
+(
+ STRING_FIELD (result->gr_name, ISCOLON, 0);
+ STRING_FIELD (result->gr_passwd, ISCOLON, 0);
+ INT_FIELD (result->gr_gid, ISCOLON, 0, 10,);
+)
+
+#include "files-XXX.c"
+
+DB_LOOKUP (grnam,
+	   {
+	     if (! strcmp (name, result->gr_name))
+	       break;
+	   }, const char *name)
+
+DB_LOOKUP (grgid,
+	   {
+	     if (result->gr_gid == gid)
+	       break;
+	   }, gid_t gid)
diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
new file mode 100644
index 0000000000..dad818c941
--- /dev/null
+++ b/nss/nss_files/files-hosts.c
@@ -0,0 +1,111 @@
+/* Hosts file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <netdb.h>
+#include <resolv.h>
+
+
+/* Get implementation for some internal functions.  */
+#include "../resolv/mapv4v6addr.h"
+#include "../resolv/mapv4v6hostent.h"
+
+
+#define ENTNAME		hostent
+#define DATAFILE	_PATH_HOSTS
+
+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 "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 addressin 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;
+      int buflen = (char *) data + datalen - bufptr;
+      map_v4v6_hostent (result, &bufptr, &buflen);
+    }
+
+  STRING_FIELD (result->h_name, isspace, 1);
+})
+
+#include "files-XXX.c"
+
+DB_LOOKUP (hostbyname,
+	   {
+	     char **ap;
+	     if (! strcmp (name, result->h_name))
+	       break;
+	     for (ap = result->h_aliases; *ap; ++ap)
+	       if (! strcmp (name, *ap))
+		 break;
+	     if (*ap)
+	       break;
+	   }, const char *name)
+
+DB_LOOKUP (hostbyaddr,
+	   {
+	     if (result->h_addrtype == type && result->h_length == len &&
+		 ! memcmp (addr, result->h_addr_list[0], len))
+	       break;
+	   }, const char *addr, int len, int type)
diff --git a/nss/nss_files/files-network.c b/nss/nss_files/files-network.c
new file mode 100644
index 0000000000..504c420b04
--- /dev/null
+++ b/nss/nss_files/files-network.c
@@ -0,0 +1,54 @@
+/* Networks file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#define ENTNAME		netent
+#define DATAFILE	_PATH_NETWORKS
+
+struct netent_data {};
+
+#define TRAILING_LIST_MEMBER		n_aliases
+#define TRAILING_LIST_SEPARATOR_P	isspace
+#include "files-parse.c"
+LINE_PARSER
+({
+  char *addr;
+
+  STRING_FIELD (result->n_name, isspace, 1);
+
+  STRING_FIELD (addr, isspace, 1);
+  result->n_net = inet_network (addr);
+
+})
+
+#include "files-XXX.c"
+
+DB_LOOKUP (netbyname,
+	   LOOKUP_NAME (n_name, n_aliases),
+	   const char *name)
+
+DB_LOOKUP (netbyaddr,
+	   {
+	     if (result->n_addrtype == type && result->n_net == net)
+	       /* Bingo!  */
+	       break;
+	   }, int type, unsigned long int net)
diff --git a/nss/nss_files/files-parse.c b/nss/nss_files/files-parse.c
new file mode 100644
index 0000000000..a93bee1ab3
--- /dev/null
+++ b/nss/nss_files/files-parse.c
@@ -0,0 +1,171 @@
+/* Common code for file-based database parsers in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ctype.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+
+
+#define CONCAT(a,b) CONCAT1(a,b)
+#define CONCAT1(a,b) a##b
+
+#ifndef STRUCTURE
+#define STRUCTURE ENTNAME
+#endif
+
+
+struct parser_data
+  {
+    struct CONCAT(ENTNAME,_data) entdata;
+    char linebuffer[0];
+  };
+
+#define LINE_PARSER(BODY)						      \
+static inline int							      \
+parse_line (char *line, struct STRUCTURE *result,			      \
+	    struct parser_data *data, int datalen)			      \
+{									      \
+  struct CONCAT(ENTNAME,_data) *const entdata __attribute__ ((unused))	      \
+    = &data->entdata;		      					      \
+  BODY;									      \
+  TRAILING_LIST_PARSER;							      \
+  return 1;								      \
+}
+
+
+/* Comments can come mid-line; trim the line at the first # seen.  */
+#define MIDLINE_COMMENTS						      \
+  {									      \
+    char *p = strchr (line, '#');					      \
+    if (p)								      \
+      *p = '\0';							      \
+  }
+
+#define STRING_FIELD(variable, terminator_p, swallow)			      \
+  {									      \
+    variable = line;							      \
+    while (!terminator_p (*line))					      \
+      if (*++line == '\0')						      \
+	return 0;							      \
+    *line = '\0';							      \
+    do									      \
+      ++line;								      \
+    while (swallow && terminator_p (*line));				      \
+  }
+
+#define INT_FIELD(variable, terminator_p, swallow, base, convert)	      \
+  {									      \
+    char *endp;								      \
+    variable = convert (strtol (line, &endp, base));			      \
+    if (endp == line)							      \
+      return 0;								      \
+    else if (terminator_p (*endp))					      \
+      do								      \
+	++endp;								      \
+      while (swallow && terminator_p (*endp));				      \
+    else if (*endp != '\0')						      \
+      return 0;								      \
+    line = endp;							      \
+  }
+
+#define ISCOLON(c) ((c) == ':')
+
+
+#ifndef TRAILING_LIST_MEMBER
+#define TRAILING_LIST_PARSER /* Nothing to do.  */
+#else
+
+#define TRAILING_LIST_PARSER						      \
+{									      \
+  char **list = parse_list (line, data, datalen);			      \
+  if (list)								      \
+    result->TRAILING_LIST_MEMBER = list;				      \
+  else 									      \
+    return 0;								      \
+}
+
+static inline char **
+parse_list (char *line, struct parser_data *data, int datalen)
+{
+  char *eol, **list, **p;
+
+  /* Find the end of the line buffer.  */
+  eol = strchr (line, '\0');
+  /* Adjust the pointer so it is aligned for storing pointers.  */
+  eol += (eol - (char *) 0) % __alignof__ (char *);
+  /* We will start the storage here for the vector of pointers.  */
+  list = (char **) eol;
+
+  p = list;
+  while (1)
+    {
+      char *elt;
+
+      if ((char *) &p[1] - (char *) data > datalen)
+	{
+	  /* We cannot fit another pointer in the buffer.  */
+	  errno = ERANGE;
+	  return NULL;
+	}
+      if (*line == '\0')
+	break;
+
+      elt = line;
+      while (1)
+	{
+	  if (TRAILING_LIST_SEPARATOR_P (*line))
+	    {
+	      *p++ = elt;
+	      *line = '\0';
+	      do
+		++line;
+	      while (TRAILING_LIST_SEPARATOR_P (*line));
+	    }
+	  else if (*line == '\0' || *line == '\n')
+	    {
+	      /* End of the line.  */
+	      if (line > elt)
+		/* Last element.  */
+		*p++ = elt;
+	      *line = '\0';
+	      break;
+	    }
+	  else
+	    ++line;
+	}
+    }
+  *p = NULL;
+
+  return list;
+}
+
+#define LOOKUP_NAME(nameelt, aliaselt)					      \
+{									      \
+  char **ap;								      \
+  if (! strcmp (name, result->nameelt))					      \
+    break;								      \
+  for (ap = result->aliaselt; *ap; ++ap)				      \
+    if (! strcmp (name, *ap))						      \
+      break;								      \
+  if (*ap)								      \
+    break;								      \
+}
+
+#endif
diff --git a/nss/nss_files/files-proto.c b/nss/nss_files/files-proto.c
new file mode 100644
index 0000000000..d67f8db8f6
--- /dev/null
+++ b/nss/nss_files/files-proto.c
@@ -0,0 +1,48 @@
+/* Protocols file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <netdb.h>
+
+
+#define ENTNAME		protoent
+#define DATAFILE	_PATH_PROTOCOLS
+
+struct protoent_data {};
+
+#define TRAILING_LIST_MEMBER		p_aliases
+#define TRAILING_LIST_SEPARATOR_P	isspace
+#include "files-parse.c"
+LINE_PARSER
+(
+ MIDLINE_COMMENTS;
+ STRING_FIELD (result->p_name, isspace, 1);
+ INT_FIELD (result->p_proto, isspace, 1, 10,);
+ )
+
+#include "files-XXX.c"
+
+DB_LOOKUP (protobyname,
+	   LOOKUP_NAME (p_name, p_aliases),
+	   const char *name)
+
+DB_LOOKUP (protobynumber,
+	   {
+	     if (result->p_proto == proto)
+	       break;
+	   }, int proto)
diff --git a/nss/nss_files/files-pwd.c b/nss/nss_files/files-pwd.c
new file mode 100644
index 0000000000..4b6a4b737f
--- /dev/null
+++ b/nss/nss_files/files-pwd.c
@@ -0,0 +1,54 @@
+/* User file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <pwd.h>
+
+#define STRUCTURE	passwd
+#define ENTNAME		pwent
+#define DATAFILE	"/etc/passwd"
+struct pwent_data {};
+
+#include "files-parse.c"
+LINE_PARSER
+({
+  STRING_FIELD (result->pw_name, ISCOLON, 0);
+  STRING_FIELD (result->pw_passwd, ISCOLON, 0);
+  INT_FIELD (result->pw_uid, ISCOLON, 0, 10,);
+  INT_FIELD (result->pw_gid, ISCOLON, 0, 10,);
+  STRING_FIELD (result->pw_gecos, ISCOLON, 0);
+  STRING_FIELD (result->pw_dir, ISCOLON, 0);
+  result->pw_shell = line;
+  line = strchr (line, '\n');
+  if (line)
+    *line = '\0';
+})
+
+#include "files-XXX.c"
+
+DB_LOOKUP (pwnam,
+	   {
+	     if (! strcmp (name, result->pw_name))
+	       break;
+	   }, const char *name)
+
+DB_LOOKUP (pwuid,
+	   {
+	     if (result->pw_uid == uid)
+	       break;
+	   }, uid_t uid)
diff --git a/nss/nss_files/files-rpc.c b/nss/nss_files/files-rpc.c
new file mode 100644
index 0000000000..fef0ff88b1
--- /dev/null
+++ b/nss/nss_files/files-rpc.c
@@ -0,0 +1,48 @@
+/* SunRPC program number file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <rpc/netdb.h>
+
+
+#define ENTNAME		rpcent
+#define DATAFILE	"/etc/rpc"
+
+struct rpcent_data {};
+
+#define TRAILING_LIST_MEMBER		r_aliases
+#define TRAILING_LIST_SEPARATOR_P	isspace
+#include "files-parse.c"
+LINE_PARSER
+(
+ MIDLINE_COMMENTS;
+ STRING_FIELD (result->r_name, isspace, 1);
+ INT_FIELD (result->r_number, isspace, 1, 10,);
+ )
+
+#include "files-XXX.c"
+
+DB_LOOKUP (rpcbyname,
+	   LOOKUP_NAME (r_name, r_aliases),
+	   const char *name)
+
+DB_LOOKUP (rpcbynumber,
+	   {
+	     if (result->r_number == number)
+	       break;
+	   }, int number)
diff --git a/nss/nss_files/files-service.c b/nss/nss_files/files-service.c
new file mode 100644
index 0000000000..3bcb48787a
--- /dev/null
+++ b/nss/nss_files/files-service.c
@@ -0,0 +1,51 @@
+/* Services file parser in nss_files module.
+Copyright (C) 1996 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 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., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <netinet/in.h>
+#include <netdb.h>
+
+
+#define ENTNAME		servent
+#define DATAFILE	_PATH_SERVICES
+
+struct servent_data {};
+
+#define TRAILING_LIST_MEMBER		s_aliases
+#define TRAILING_LIST_SEPARATOR_P	isspace
+#include "files-parse.c"
+#define ISSLASH(c) ((c) == '/')
+LINE_PARSER
+(
+ MIDLINE_COMMENTS;
+ STRING_FIELD (result->s_name, isspace, 1);
+ INT_FIELD (result->s_port, ISSLASH, 10, 0, htons);
+ STRING_FIELD (result->s_proto, isspace, 1);
+ )
+
+#include "files-XXX.c"
+
+DB_LOOKUP (servbyname,
+	   LOOKUP_NAME (s_name, s_aliases),
+	   const char *name)
+
+DB_LOOKUP (servbyport,
+	   {
+	     if (result->s_port == port)
+	       break;
+	   }, int port)