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, 389 insertions, 0 deletions

diff --git a/nis/nss_nis/nis-hosts.c b/nis/nss_nis/nis-hosts.c
new file mode 100644
index 0000000000..9adce18ca3
--- /dev/null
+++ b/nis/nss_nis/nis-hosts.c
@@ -0,0 +1,389 @@
+/* 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 <netdb.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <resolv.h>
+#include <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/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;
+       map_v4v6_hostent (result, &bufptr, &buflen);
+     }
+
+   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 (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 && 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_gethostbyname_r (const char *name, 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;
+    }
+  retval = yperr2nss (yp_match (domain, "hosts.byname", name,
+                                strlen (name), &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 (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)
+    {
+      if (errno == ERANGE)
+	{
+	  *h_errnop = NETDB_INTERNAL;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+      else
+	{
+	  *h_errnop = HOST_NOT_FOUND;
+	  return NSS_STATUS_NOTFOUND;
+	}
+    }
+
+  *h_errnop = NETDB_SUCCESS;
+  return NSS_STATUS_SUCCESS;
+}
+
+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 (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)
+    {
+      if (errno == ERANGE)
+	{
+	  *h_errnop = NETDB_INTERNAL;
+	  return NSS_STATUS_TRYAGAIN;
+	}
+      else
+	{
+	  *h_errnop = HOST_NOT_FOUND;
+	  return NSS_STATUS_NOTFOUND;
+	}
+    }
+
+  *h_errnop = NETDB_SUCCESS;
+  return NSS_STATUS_SUCCESS;
+}