Update.

	* nss/getXXbyYY_r.c (REENTRANT_NAME): Return ENOENT if status is
	neither SUCCESS nor TRYAGAIN [PR libc/4259].
	* nss/nss_files/files-XXX.c (internal_getent): Don't set *errnop
	to ENOENT if no entry is found.
	* nis/nss_compat/compat-grp.c: Don't set errno in case of lookup
	failure.
	* nis/nss_compat/compat-initgroups.c: Likewise.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.
	* nis/nss_nis/nis-alias.c: Likewise.
	* nis/nss_nis/nis-ethers.c: Likewise.
	* nis/nss_nis/nis-grp.c: Likewise.
	* nis/nss_nis/nis-hosts.c: Likewise.
	* nis/nss_nis/nis-initgroups.c: Likewise.
	* nis/nss_nis/nis-netgrp.c: Likewise.
	* nis/nss_nis/nis-network.c: Likewise.
	* nis/nss_nis/nis-proto.c: Likewise.
	* nis/nss_nis/nis-publickey.c: Likewise.
	* nis/nss_nis/nis-pwd.c: Likewise.
	* nis/nss_nis/nis-rpc.c: Likewise.
	* nis/nss_nis/nis-service.c: Likewise.
	* nis/nss_nis/nis-spwd.c: Likewise.
	* resolv/nss_dns/dns-host.c: Likewise.
	* resolv/nss_dns/dns-network.c: Likewise.
	* nis/nss_nisplus/nisplus-alias.c: Save errno around NIS calls.
	* nis/nss_nisplus/nisplus-ethers.c: Likewise.
	* nis/nss_nisplus/nisplus-grp.c: Likewise.
	* nis/nss_nisplus/nisplus-hosts.c: Likewise.
	* nis/nss_nisplus/nisplus-network.c: Likewise.
	* nis/nss_nisplus/nisplus-proto.c: Likewise.
	* nis/nss_nisplus/nisplus-pwd.c: Likewise.
	* nis/nss_nisplus/nisplus-rpc.c: Likewise.
	* nis/nss_nisplus/nisplus-service.c: Likewise.
	* nis/nss_nisplus/nisplus-spwd.c: Likewise.
	* hesiod/nss_hesiod/hesiod-pwd.c (lookup): Preserve errno value.
	* hesiod/nss_hesiod/hesiod-proto.c (lookup): Likewise.
	* hesiod/nss_hesiod/hesiod-grp.c (lookup): Likewise.
	* hesiod/nss_hesiod/hesiod-service.c (lookup): Likewise.

4 files changed, 42 insertions, 12 deletions

diff --git a/hesiod/nss_hesiod/hesiod-grp.c b/hesiod/nss_hesiod/hesiod-grp.c
index fdaf1f2..50c53f7 100644
--- a/hesiod/nss_hesiod/hesiod-grp.c
+++ b/hesiod/nss_hesiod/hesiod-grp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
@@ -57,6 +57,7 @@ lookup (const char *name, const char *type, struct group *grp,
   char **list;
   int parse_res;
   size_t len;
+  int olderr = errno;
 
   context = _nss_hesiod_init ();
   if (context == NULL)
@@ -65,8 +66,10 @@ lookup (const char *name, const char *type, struct group *grp,
   list = hesiod_resolve (context, name, type);
   if (list == NULL)
     {
+      int err = errno;
       hesiod_end (context);
-      return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+      __set_errno (olderr);
+      return err == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
     }
 
   linebuflen = buffer + buflen - data->linebuffer;
@@ -85,7 +88,10 @@ lookup (const char *name, const char *type, struct group *grp,
 
   parse_res = _nss_files_parse_grent (buffer, grp, data, buflen, errnop);
   if (parse_res < 1)
-    return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+    {
+      __set_errno (olderr);
+      return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+    }
 
   return NSS_STATUS_SUCCESS;
 }
diff --git a/hesiod/nss_hesiod/hesiod-proto.c b/hesiod/nss_hesiod/hesiod-proto.c
index 333f02a..137b572 100644
--- a/hesiod/nss_hesiod/hesiod-proto.c
+++ b/hesiod/nss_hesiod/hesiod-proto.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
@@ -67,6 +67,7 @@ lookup (const char *name, const char *type, struct protoent *proto,
   char **list, **item;
   int parse_res;
   int found;
+  int olderr = errno;
 
   context = _nss_hesiod_init ();
   if (context == NULL)
@@ -75,8 +76,10 @@ lookup (const char *name, const char *type, struct protoent *proto,
   list = hesiod_resolve (context, name, type);
   if (list == NULL)
     {
+      int err = errno;
       hesiod_end (context);
-      return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+      __set_errno (olderr);
+      return err == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
     }
 
   linebuflen = buffer + buflen - data->linebuffer;
@@ -115,7 +118,13 @@ lookup (const char *name, const char *type, struct protoent *proto,
   hesiod_free_list (context, list);
   hesiod_end (context);
 
-  return found ? NSS_STATUS_SUCCESS : NSS_STATUS_NOTFOUND;
+  if (found == 0)
+    {
+      __set_errno (olderr);
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  return NSS_STATUS_SUCCESS;
 }
 
 enum nss_status
diff --git a/hesiod/nss_hesiod/hesiod-pwd.c b/hesiod/nss_hesiod/hesiod-pwd.c
index 9f57e27..2a7f65e 100644
--- a/hesiod/nss_hesiod/hesiod-pwd.c
+++ b/hesiod/nss_hesiod/hesiod-pwd.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
@@ -55,6 +55,7 @@ lookup (const char *name, const char *type, struct passwd *pwd,
   char **list;
   int parse_res;
   size_t len;
+  int olderr = errno;
 
   context = _nss_hesiod_init ();
   if (context == NULL)
@@ -63,8 +64,10 @@ lookup (const char *name, const char *type, struct passwd *pwd,
   list = hesiod_resolve (context, name, type);
   if (list == NULL)
     {
+      int err = errno;
       hesiod_end (context);
-      return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+      __set_errno (olderr);
+      return err == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
     }
 
   linebuflen = buffer + buflen - data->linebuffer;
@@ -83,7 +86,10 @@ lookup (const char *name, const char *type, struct passwd *pwd,
 
   parse_res = _nss_files_parse_pwent (buffer, pwd, data, buflen, errnop);
   if (parse_res < 1)
-    return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+    {
+      __set_errno (olderr);
+      return parse_res == -1 ? NSS_STATUS_TRYAGAIN : NSS_STATUS_NOTFOUND;
+    }
 
   return NSS_STATUS_SUCCESS;
 }
diff --git a/hesiod/nss_hesiod/hesiod-service.c b/hesiod/nss_hesiod/hesiod-service.c
index bd4cb61..cb5edd2 100644
--- a/hesiod/nss_hesiod/hesiod-service.c
+++ b/hesiod/nss_hesiod/hesiod-service.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 2000, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1997.
 
@@ -68,6 +68,7 @@ lookup (const char *name, const char *type, const char *protocol,
   char **list, **item;
   int parse_res;
   int found;
+  int olderr = errno;
 
   context = _nss_hesiod_init ();
   if (context == NULL)
@@ -76,8 +77,10 @@ lookup (const char *name, const char *type, const char *protocol,
   list = hesiod_resolve (context, name, type);
   if (list == NULL)
     {
+      int err = errno;
       hesiod_end (context);
-      return errno == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
+      __set_errno (olderr);
+      return err == ENOENT ? NSS_STATUS_NOTFOUND : NSS_STATUS_UNAVAIL;
     }
 
   linebuflen = buffer + buflen - data->linebuffer;
@@ -116,7 +119,13 @@ lookup (const char *name, const char *type, const char *protocol,
   hesiod_free_list (context, list);
   hesiod_end (context);
 
-  return found ? NSS_STATUS_SUCCESS : NSS_STATUS_NOTFOUND;
+  if (found == 0)
+    {
+      __set_errno (olderr);
+      return NSS_STATUS_NOTFOUND;
+    }
+
+  return NSS_STATUS_SUCCESS;
 }
 
 enum nss_status