* nscd/connection.c (DEFAULT_DATASIZE_PER_BUCKET): Move to nscd.h.

	(dbs): Initialize max_db_size fields.
	(nscd_init): When mapping the database, use max_db_size as the
	mapping size even if it is bigger than the file size.
	* nscd/mem.c (mempool_alloc): When resizing the file make sure the
	limit in max_db_size is not exceeded.  Don't use mremap, just
	posix_fallocate is enough (according to Linus).  Use posix_fallocate
	correctly.
	* nscd/nscd.conf: Add max-db-size parameters.
	* nscd/nscd.h (struct database_dyn): Add max_db_size field.
	Define DEFAULT_MAX_DB_SIZE and DEFAULT_DATASIZE_PER_BUCKET.
	Temporarily define TEMP_FAILURE_RETRY_VAL here.
	* nscd/nscd_conf.c (nscd_parse_file): Parse max-db-size parameter
	and add sanity checks for it.

	* nscd/aicache.c (addhstaiX): Use send with MSG_NOSIGNAL not write to
	send reply.
	* nscd/connection.c (writeall): Likewise.
	(handle_request): Likewise.
	* nscd/grpcache.c (cache_addgr): Likewise.
	* nscd/hstcache.c (cache_addhst): Likewise.
	* nscd/initgrcache.c (addinitgroupsX): Likewise.
	* nscd/nscd.c (parse_opt): Likewise.
	* nscd/nscd_stat.c (send_stats): Likewise.
	(receive_print_stats): Likewise.
	* nscd/pwdcache.c (cache_addpw): Likewise.

1 files changed, 28 insertions, 1 deletions

diff --git a/nscd/nscd_conf.c b/nscd/nscd_conf.c
index d21f2fc501..c5c06ae2d9 100644
--- a/nscd/nscd_conf.c
+++ b/nscd/nscd_conf.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 1998, 2000, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (c) 1998, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
 
@@ -171,6 +171,17 @@ nscd_parse_file (const char *fname, struct database_dyn dbs[lastdb])
 	  if (cnt == lastdb)
 	    dbg_log ("database %s is not supported\n", arg1);
 	}
+      else if (strcmp (entry, "max-db-size") == 0)
+	{
+	  for (cnt = 0; cnt < lastdb; ++cnt)
+	    if (strcmp (arg1, dbnames[cnt]) == 0)
+	      {
+		dbs[cnt].max_db_size = atol (arg2);
+		break;
+	      }
+	  if (cnt == lastdb)
+	    dbg_log ("database %s is not supported\n", arg1);
+	}
       else if (strcmp (entry, "logfile") == 0)
 	set_logfile (arg1);
       else if (strcmp (entry, "debug-level") == 0)
@@ -290,6 +301,22 @@ cannot get current working directory: %s; disabling paranoia mode"),
   if (max_nthreads < nthreads)
     max_nthreads = nthreads;
 
+  for (cnt = 0; cnt < lastdb; ++cnt)
+    {
+      size_t datasize = (sizeof (struct database_pers_head)
+			 + roundup (dbs[cnt].suggested_module
+				    * sizeof (ref_t), ALIGN)
+			 + (dbs[cnt].suggested_module
+			    * DEFAULT_DATASIZE_PER_BUCKET));
+      if (datasize > dbs[cnt].max_db_size)
+	{
+	  dbg_log (_("maximum file size for %s database too small"),
+		   dbnames[cnt]);
+	  dbs[cnt].max_db_size = datasize;
+	}
+
+    }
+
   /* Free the buffer.  */
   free (line);
   /* Close configuration file.  */