(internal_setent): If opening of file failed with EGAIN return

[kopensolaris-gnu/glibc.git] / nss / nss_files / files-hosts.c

diff --git a/nss/nss_files/files-hosts.c b/nss/nss_files/files-hosts.c
index 15f00f3..d6c4152 100644 (file)
--- a/nss/nss_files/files-hosts.c
+++ b/nss/nss_files/files-hosts.c
@@ -1,21 +1,21 @@
 /* Hosts file parser in nss_files module.
-Copyright (C) 1996 Free Software Foundation, Inc.
-This file is part of the GNU C Library.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
-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 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.
+   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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
+   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 <netinet/in.h>
 #include <arpa/inet.h>
@@ -26,11 +26,11 @@ Cambridge, MA 02139, USA.  */
 
 /* Get implementation for some internal functions.  */
 #include "../resolv/mapv4v6addr.h"
-#include "../resolv/mapv4v6hostent.h"
 
 
 #define ENTNAME                hostent
-#define DATAFILE       _PATH_HOSTS
+#define DATABASE       "hosts"
+#define NEED_H_ERRNO
 
 #define ENTDATA hostent_data
 struct hostent_data
@@ -43,68 +43,63 @@ struct hostent_data
 #define TRAILING_LIST_SEPARATOR_P      isspace
 #include "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;
-      int buflen = (char *) data + datalen - bufptr;
-      map_v4v6_hostent (result, &bufptr, &buflen);
-    }
-
-  STRING_FIELD (result->h_name, isspace, 1);
-})
+("#",
+ {
+   char *addr;
+
+   STRING_FIELD (addr, isspace, 1);
+
+   /* Parse address.  */
+   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 if (inet_pton (AF_INET6, addr, entdata->host_addr) > 0)
+     {
+       result->h_addrtype = AF_INET6;
+       result->h_length = IN6ADDRSZ;
+     }
+   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;
+
+   STRING_FIELD (result->h_name, isspace, 1);
+ })
 
 #include "files-XXX.c"
 
-DB_LOOKUP (hostbyname,
+DB_LOOKUP (hostbyname, ,,
           {
-            char **ap;
-            if (! strcmp (name, result->h_name))
-              break;
-            for (ap = result->h_aliases; *ap; ++ap)
-              if (! strcmp (name, *ap))
-                break;
-            if (*ap)
-              break;
+            if (result->h_addrtype != ((_res.options & RES_USE_INET6)
+                                       ? AF_INET6 : AF_INET))
+              continue;
+            LOOKUP_NAME (h_name, h_aliases)
           }, const char *name)
 
-DB_LOOKUP (hostbyaddr,
+DB_LOOKUP (hostbyname2, ,,
+          {
+            if (result->h_addrtype != af)
+              continue;
+            LOOKUP_NAME (h_name, h_aliases)
+          }, const char *name, int af)
+
+DB_LOOKUP (hostbyaddr, ,,
           {
             if (result->h_addrtype == type && result->h_length == len &&
                 ! memcmp (addr, result->h_addr_list[0], len))