update from main arcive 961210 cvs/libc-961211

Wed Dec 11 01:04:30 1996  Ulrich Drepper  <drepper@cygnus.com>

	Add NIS NSS implementation.
	* shlib-versions: Add versions for NIS libraries.
	* sysdeps/unix/inet/Subdirs: Add nis.
	* nis/Banner: New file.
	* nis/Makefile: New file.
	* nis/nss-nis.h: New file.
	* nis/yp_xdr.h: New file.
	* nis/ypclnt.h: New file.
	* nis/ypupdate_xdr.c: New file.
	* nis/nss_compat/compat-grp.c: New file.
	* nis/nss_compat/compat-pwd.c: New file.
	* nis/nss_compat/compat-spwd.c: New file.
	* nis/nss_nis/nis-alias.c: New file.
	* nis/nss_nis/nis-ethers.c: New file.
	* nis/nss_nis/nis-grp.c: New file.
	* nis/nss_nis/nis-hosts.c: New file.
	* nis/nss_nis/nis-netgrp.c: New file.
	* nis/nss_nis/nis-network.c: New file.
	* nis/nss_nis/nis-proto.c: New file.
	* nis/nss_nis/nis-publickey.c: New file.
	* nis/nss_nis/nis-pwd.c: New file.
	* nis/nss_nis/nis-rpc.c: New file.
	* nis/nss_nis/nis-service.c: New file.
	* nis/nss_nis/nis-spwd.c: New file.
	* nis/rpcsvc/yp.h: New file.
	* nis/rpcsvc/yp.x: New file.
	* nis/rpcsvc/yp_prot.h: New file.
	* nis/rpcsvc/ypclnt.h: New file.
	* nis/rpcsvc/ypupd.h: New file.

	* libio/_G_config.h: Define _G_HAVE_SYS_WAIT and _G_HAVE_PRINTF_FP.

	* locale/C-numeric.c: Update copyright.

	* locale/Makefile: Add rules to build libBrokenLocale.
	* locale/broken_cur_max.c: New file.
	* locale/mb_cur_max.c: Update copyright.
	(__ctype_get_mb_cur_max): Make function weak.

	* new-malloc/malloc.c: Correct copyright.
	* new-malloc/thread-m.h: Correct key handling.

	* shadow/lckpwdf.c: Update copyright.
	(PWD_LOCKFILE): Change to /etc/.pwd.lock.

	* stdlib/strtod.c: Add another assertion.
	* stdlib/tst-strtod.c: Add another test case.

	* sysdeps/generic/paths.h: Add _PATH_PRESERVE.  Needed by nvi.
	* sysdeps/unix/sysv/linux/paths.h: Likewise.

	* sysdeps/gnu/utmpbits.h: Rename ut_addr field to ut_addr_v6.
	ut_addr names a single element in ut_addr_v6.

	* sysdeps/mach/hurd/xmknod.c: Remove alias from __mknod to mknod.
	Patch by Thomas Bushnell, n/BSG.

Tue Dec 10 11:35:28 1996  Richard Henderson  <rth@tamu.edu>

	* sysdeps/alpha/strncmp.S: Fix aligned short truncated compare
	corner condition.

	* sysdeps/alpha/memchr.S: Don't read ahead, even if the load
	did fit nicely into that delay slot (patch from David Mosberger-Tang).

Mon Dec  9 23:53:43 1996  Thomas Bushnell, n/BSG  <thomas@gnu.ai.mit.edu>

	* sysdeps/mach/hurd/ttyname_r.c (__ttyname_r): Renamed from
	`ttyname_r'.
	(ttyname_r): New alias.

	* stdio-common/printf_fp.c (__guess_grouping): Fix off by one

1 files changed, 269 insertions, 0 deletions

diff --git a/nis/nss_nis/nis-alias.c b/nis/nss_nis/nis-alias.c
new file mode 100644
index 0000000000..af83d9cd7c
--- /dev/null
+++ b/nis/nss_nis/nis-alias.c
@@ -0,0 +1,269 @@
+/* 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 <string.h>
+#include <aliases.h>
+#include <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 (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 (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;
+
+  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, "mail.aliases", name, strlen (name),
+				&result, &len));
+  if (retval != NSS_STATUS_SUCCESS)
+    {
+      if (retval == NSS_STATUS_TRYAGAIN)
+	__set_errno (EAGAIN);
+      return retval;
+    }
+
+  if (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;
+}