Update.

1999-02-06  Ulrich Drepper  <drepper@cygnus.com>

	* Versions.def: Add versions for ld.so.
	* csu/Versions: Remove __libc_stack_end here.
	* elf/Versions: Split libc definitions in libc and ld.so definitions.
	* elf/Makefile (ld-map): Change to ld.so.map.
	* scripts/versions.awk: Recognize dot in library names.

	* ctype/ctype.h: Remove definitions of __tolower and __toupper.
	Don't use __tolower and __toupper in inline functions.
	Add optimizing macros for tolower and toupper.
	* ctype/ctype-extn.c (_tolower): Don't use __tolower.
	(_toupper): Don't use __toupper.
	* ctype/ctype.c (tolower): Don't use __tolower.
	(toupper): Don't use toupper.

	* nscd/cache.c (prune_cache): Correct printing of debugging messages.

	* resolv/Versions (libresolv): Export __ns_name_unpack and
	__ns_name_ntop.
	* resolv/res_comp.c: Rename ns_name_unpack to __ns_name_unpack and
	make it global.  Change all users.  Similar for ns_name_ntop.
	* resolv/nss_dns/dns-host.c: Don't use dn_expand when extracting in
	user-provided buffer.  Use __ns_name_unpack and __ns_name_ntop
	directly to detect too small buffer.
	* stdio-common/Makefile (tests): Add scanf12.
	* stdio-common/scanf12.c: New file.
	* stdio-common/scanf12.input: New file.
	* stdio-common/vfscanf.c (__vfscanf): Handle +/- at beginning of
	floating-point correctly if the number is invalid.
	* stdio-common/vfscanf.c: Don't use non-reentrant multibyte conversion
	* stdio-common/printf_fphex.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
See ChangeLog.9 for earlier changes.

1 files changed, 37 insertions, 2 deletions

diff --git a/resolv/nss_dns/dns-network.c b/resolv/nss_dns/dns-network.c
index 6faeec33e4..c8fee78bbe 100644
--- a/resolv/nss_dns/dns-network.c
+++ b/resolv/nss_dns/dns-network.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Extended from original form by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -95,6 +95,12 @@ typedef union querybuf
   u_char buf[MAXPACKET];
 } querybuf;
 
+/* These functions are defined in res_comp.c.  */
+#define NS_MAXCDNAME	255	/* maximum compressed domain name */
+extern int __ns_name_ntop __P ((const u_char *, char *, size_t));
+extern int __ns_name_unpack __P ((const u_char *, const u_char *,
+				  const u_char *, u_char *, size_t));
+
 
 /* Prototypes for local functions.  */
 static enum nss_status getanswer_r (const querybuf *answer, int anslen,
@@ -235,6 +241,7 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
   char **alias_pointer;
   int have_answer;
   char *ans;
+  u_char packtmp[NS_MAXCDNAME];
 
   if (question_count == 0)
     {
@@ -267,6 +274,22 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
       int n = dn_expand (answer->buf, end_of_message, cp, bp, linebuflen);
       int type, class;
 
+      n = __ns_name_unpack (answer->buf, end_of_message, cp,
+			    packtmp, sizeof packtmp);
+      if (n != -1 && __ns_name_ntop (packtmp, bp, linebuflen) == -1)
+	{
+	  if (errno == EMSGSIZE)
+	    {
+	      errno = ERANGE;
+	      return NSS_STATUS_TRYAGAIN;
+	    }
+
+	  n = -1;
+	}
+
+      if (n > 0 && bp[0] == '.')
+	bp[0] = '\0';
+
       if (n < 0 || res_dnok (bp) == 0)
 	break;
       cp += n;
@@ -278,7 +301,19 @@ getanswer_r (const querybuf *answer, int anslen, struct netent *result,
 
       if (class == C_IN && type == T_PTR)
 	{
-	  n = dn_expand (answer->buf, end_of_message, cp, bp, linebuflen);
+	  n = __ns_name_unpack (answer->buf, end_of_message, cp,
+				packtmp, sizeof packtmp);
+	  if (n != -1 && __ns_name_ntop (packtmp, bp, linebuflen) == -1)
+	    {
+	      if (errno == EMSGSIZE)
+		{
+		  errno = ERANGE;
+		  return NSS_STATUS_TRYAGAIN;
+		}
+
+	      n = -1;
+	    }
+
 	  if (n < 0 || !res_hnok (bp))
 	    {
 	      /* XXX What does this mean?  The original form from bind