Update.

1998-10-18  Ulrich Drepper  <drepper@cygnus.com>

	* resolv/nss_dns/dns-host.c: Add missing errnop parameter to the
	NSS functions.
	* resolv/nss_dns/dns-network.c: Likewise.

	* grp/Makefile: Don't search for linuxhtreads in add-ons, use
	have-thread-library to determine whether threads are available.
	* pwd/Makefile: Remove wrong comment.

	* inet/Makefile: Define CFLAGS-gethstbyad_r.c, CFLAGS-gethstbynm_r.c,
	and CFLAGS-gethstbynm2_r.c to -DUSE_NSCD=1.

	* locale/C-messages.c: Define default strings for YESTR and NOSTR.

	* nss/Versions: Add __nss_hosts_lookup.

	* nss/getXXbyYY.c: Remove unneeded assignment.

	* nss/getXXbyYY_r.c: Include nscd/nscd_proto.h only if needed.

	Almost complete rewrite of the NSCD to make it smaller, faster,
	add more functionnality and make it easier to extend.
	* nscd/Makfile (routines): Add nscd_gethst_r.
	(nscd-modules): Add hstcache, gethstbyad_r, gethstbynm2_r, and cache.
	* nscd/cache.c: New file.
	* nscd/gethstbyad_r.c: New file.
	* nscd/gethstbynm2_r.c: New file.
	* nscd/hstcache.c: New file.
	* nscd/nscd_gethst_r.c: New file.
	* nscd/connections.c: Rewritten.  Don't start new thread for every
	new connection.  Use a fixed set of threads which handle all
	connections and also the cache cleanup.
	* nscd/grpcache.c: Rewritten to use generic cache handling functions
	in cache.c.
	* nscd/nscd.c: Recognize new parameter nthreads.  Adjust initialization
	for rewrite.  Remove handle_requests function.
	* nscd/nscd.h (NSCD_VERSION): Bump to 2.
	Define new data structure for the new unified cache and the host
	database entries.
	* nscd/nscd_conf.c: Rewrite parsing partly to allow adding of more
	databases easily.  Recognize check-files and threads definitions.
	* nscd/nscd.conf: Add definition of enable-cache and check-files to
	passwd and group definitions.  Add new set of definitions for hosts.
	* nscd/nscd_getgr_r.c: Rewrite for new protocol.
	* nscd/nscd_getpw_r.c: Likewise.
	* nscd/nscd_proto.h: Add prototype for host database functions.
	* nscd/nscd_stat.c: Rewrite to simplify printing of information
	for many databases.
	* nscd/dbg_log.c: Remove unnecessary variable initializations.
	Global variable debug_flag is renamed to dbg_level.
	* nscd/dbg_log.h: Declare set_logfile.

2 files changed, 48 insertions, 27 deletions

diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index ed4be67337..4d46384ca7 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -120,11 +120,12 @@ typedef union querybuf
 static enum nss_status getanswer_r (const querybuf *answer, int anslen,
 				    const char *qname, int qtype,
 				    struct hostent *result, char *buffer,
-				    size_t buflen, int *h_errnop);
+				    size_t buflen, int *errnop, int *h_errnop);
 
 enum nss_status
 _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
-			   char *buffer, size_t buflen, int *h_errnop)
+			   char *buffer, size_t buflen, int *errnop,
+			   int *h_errnop)
 {
   querybuf host_buffer;
   int size, type, n;
@@ -141,7 +142,7 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
     break;
   default:
     *h_errnop = NETDB_INTERNAL;
-    __set_errno (EAFNOSUPPORT);
+    *errnop = EAFNOSUPPORT;
     return NSS_STATUS_UNAVAIL;
   }
 
@@ -160,26 +161,28 @@ _nss_dns_gethostbyname2_r (const char *name, int af, struct hostent *result,
   if (n < 0)
     {
       *h_errnop = h_errno;
+      *errnop = errno;
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
   return getanswer_r (&host_buffer, n, name, type, result, buffer, buflen,
-		      h_errnop);
+		      errnop, h_errnop);
 }
 
 
 enum nss_status
 _nss_dns_gethostbyname_r (const char *name, struct hostent *result,
-			  char *buffer, size_t buflen, int *h_errnop)
+			  char *buffer, size_t buflen, int *errnop,
+			  int *h_errnop)
 {
   enum nss_status status = NSS_STATUS_NOTFOUND;
 
   if (_res.options & RES_USE_INET6)
     status = _nss_dns_gethostbyname2_r (name, AF_INET6, result, buffer,
-					buflen, h_errnop);
+					buflen, errnop, h_errnop);
   if (status == NSS_STATUS_NOTFOUND)
     status = _nss_dns_gethostbyname2_r (name, AF_INET, result, buffer,
-					buflen, h_errnop);
+					buflen, errnop, h_errnop);
 
   return status;
 }
@@ -188,7 +191,7 @@ _nss_dns_gethostbyname_r (const char *name, struct hostent *result,
 enum nss_status
 _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
 			  struct hostent *result, char *buffer, size_t buflen,
-			  int *h_errnop)
+			  int *errnop, int *h_errnop)
 {
   static const u_char mapped[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0xff,0xff };
   static const u_char tunnelled[] = { 0,0, 0,0, 0,0, 0,0, 0,0, 0,0 };
@@ -224,13 +227,13 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
       size = IN6ADDRSZ;
       break;
     default:
-      __set_errno (EAFNOSUPPORT);
+      *errnop = EAFNOSUPPORT;
       *h_errnop = NETDB_INTERNAL;
       return NSS_STATUS_UNAVAIL;
     }
   if (size != len)
     {
-      __set_errno (EAFNOSUPPORT);
+      *errnop = EAFNOSUPPORT;
       *h_errnop = NETDB_INTERNAL;
       return NSS_STATUS_UNAVAIL;
     }
@@ -256,14 +259,16 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
   if (n < 0)
     {
       *h_errnop = h_errno;
+      *errnop = errno;
       return errno == ECONNREFUSED ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
     }
 
   status = getanswer_r (&host_buffer, n, qbuf, T_PTR, result, buffer, buflen,
-			h_errnop);
+			errnop, h_errnop);
   if (status != NSS_STATUS_SUCCESS)
     {
       *h_errnop = h_errno;
+      *errnop = errno;
       return status;
     }
 
@@ -292,7 +297,7 @@ _nss_dns_gethostbyaddr_r (const char *addr, int len, int af,
 static enum nss_status
 getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
 	     struct hostent *result, char *buffer, size_t buflen,
-	     int *h_errnop)
+	     int *errnop, int *h_errnop)
 {
   struct host_data
   {
@@ -344,7 +349,17 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
   n = dn_expand (answer->buf, end_of_message, cp, bp, linebuflen);
   if (n < 0 || (*name_ok) (bp) == 0)
     {
-      *h_errnop = NO_RECOVERY;
+      if (errno == EMSGSIZE)
+	{
+	  /* There is not enough room in the input buffer.  */
+	  *errnop = ERANGE;
+	  *h_errnop = NETDB_INTERNAL;
+	}
+      else
+	{
+	  *errnop = errno;
+	  *h_errnop = NO_RECOVERY;
+	}
       return NSS_STATUS_UNAVAIL;
     }
   cp += n + QFIXEDSZ;
@@ -358,7 +373,7 @@ getanswer_r (const querybuf *answer, int anslen, const char *qname, int qtype,
       n = strlen (bp) + 1;             /* for the \0 */
       if (n >= MAXHOSTNAMELEN)
 	{
-	  __set_h_errno (NO_RECOVERY);
+	  *h_errnop = NO_RECOVERY;
 	  return NSS_STATUS_TRYAGAIN;
 	}
       result->h_name = bp;
diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
index e9a4b91e9d..6faeec33e4 100644
--- a/resolv/nss_dns/dns-network.c
+++ b/resolv/nss_dns/dns-network.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -104,7 +104,7 @@ static enum nss_status getanswer_r (const querybuf *answer, int anslen,
 
 enum nss_status
 _nss_dns_getnetbyname_r (const char *name, struct netent *result,
-			 char *buffer, size_t buflen)
+			 char *buffer, size_t buflen, int *errnop)
 {
   /* Return entry for network with NAME.  */
   querybuf net_buffer;
@@ -115,11 +115,14 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
   anslen = res_search (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
 		       sizeof (querybuf));
   if (anslen < 0)
-    /* Nothing found.  */
-    return (errno == ECONNREFUSED
-	    || errno == EPFNOSUPPORT
-	    || errno == EAFNOSUPPORT)
-      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    {
+      /* Nothing found.  */
+      *errnop = errno;
+      return (errno == ECONNREFUSED
+	      || errno == EPFNOSUPPORT
+	      || errno == EAFNOSUPPORT)
+	? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    }
 
   return getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYNAME);
 }
@@ -127,7 +130,7 @@ _nss_dns_getnetbyname_r (const char *name, struct netent *result,
 
 enum nss_status
 _nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
-			 char *buffer, size_t buflen)
+			 char *buffer, size_t buflen, int *errnop)
 {
   /* Return entry for network with NAME.  */
   enum nss_status status;
@@ -170,11 +173,14 @@ _nss_dns_getnetbyaddr_r (long net, int type, struct netent *result,
   anslen = res_query (qbuf, C_IN, T_PTR, (u_char *) &net_buffer,
 		      sizeof (querybuf));
   if (anslen < 0)
-    /* Nothing found.  */
-    return (errno == ECONNREFUSED
-	    || errno == EPFNOSUPPORT
-	    || errno == EAFNOSUPPORT)
-      ? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    {
+      /* Nothing found.  */
+      *errnop = errno;
+      return (errno == ECONNREFUSED
+	      || errno == EPFNOSUPPORT
+	      || errno == EAFNOSUPPORT)
+	? NSS_STATUS_UNAVAIL : NSS_STATUS_NOTFOUND;
+    }
 
   status = getanswer_r (&net_buffer, anslen, result, buffer, buflen, BYADDR);
   if (status == NSS_STATUS_SUCCESS)