Update copyright dates not handled by scripts/update-copyrights.

[thirdparty/glibc.git] / elf / cache.c

diff --git a/elf/cache.c b/elf/cache.c
index fbee172012cdfae465cb2f23e198c02910767560..b8e9e6ccc32eb7eeb77a4ff606565c5bf3235b7e 100644 (file)
--- a/elf/cache.c
+++ b/elf/cache.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2016 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 1999.
 
@@ -114,6 +114,12 @@ print_entry (const char *lib, int flag, unsigned int osversion,
     case FLAG_MIPS64_LIBN64_NAN2008:
       fputs (",64bit,nan2008", stdout);
       break;
+    case FLAG_RISCV_FLOAT_ABI_SOFT:
+      fputs (",soft-float", stdout);
+      break;
+    case FLAG_RISCV_FLOAT_ABI_DOUBLE:
+      fputs (",double-float", stdout);
+      break;
     case 0:
       break;
     default:
@@ -193,6 +199,11 @@ print_cache (const char *cache_name)
     }
   else
     {
+      /* Check for corruption, avoiding overflow.  */
+      if ((cache_size - sizeof (struct cache_file)) / sizeof (struct file_entry)
+         < cache->nlibs)
+       error (EXIT_FAILURE, 0, _("File is not a cache file.\n"));
+
       size_t offset = ALIGN_CACHE (sizeof (struct cache_file)
                                   + (cache->nlibs
                                      * sizeof (struct file_entry)));
@@ -448,8 +459,7 @@ save_cache (const char *cache_name)
        error (EXIT_FAILURE, errno, _("Writing of cache data failed"));
     }
 
-  if (write (fd, strings, total_strlen) != (ssize_t) total_strlen
-      || close (fd))
+  if (write (fd, strings, total_strlen) != (ssize_t) total_strlen)
     error (EXIT_FAILURE, errno, _("Writing of cache data failed"));
 
   /* Make sure user can always read cache file */
@@ -458,6 +468,10 @@ save_cache (const char *cache_name)
           _("Changing access rights of %s to %#o failed"), temp_name,
           S_IROTH|S_IRGRP|S_IRUSR|S_IWUSR);
 
+  /* Make sure that data is written to disk.  */
+  if (fsync (fd) != 0 || close (fd) != 0)
+    error (EXIT_FAILURE, errno, _("Writing of cache data failed"));
+
   /* Move temporary to its final location.  */
   if (rename (temp_name, cache_name))
     error (EXIT_FAILURE, errno, _("Renaming of %s to %s failed"), temp_name,
@@ -812,7 +826,8 @@ save_aux_cache (const char *aux_cache_name)
 
   if (write (fd, file_entries, file_entries_size + total_strlen)
       != (ssize_t) (file_entries_size + total_strlen)
-      || close (fd))
+      || fdatasync (fd) != 0
+      || close (fd) != 0)
     {
       unlink (temp_name);
       goto out_fail;