X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=lib%2Fcanonicalize.c;h=4fe9f308af7e9ee54eef166ac16f2f8e5418d1f6;hb=b65bfcd7ba0be84de3d96f22103103f21679a721;hp=2f008e0689a369f1486113704765ce1fc18a4707;hpb=441aa3044f43e5572f58c354f01e6bc070acd5c7;p=gnulib.git

diff --git a/lib/canonicalize.c b/lib/canonicalize.c
index 2f008e068..4fe9f308a 100644
--- a/lib/canonicalize.c
+++ b/lib/canonicalize.c
@@ -1,5 +1,5 @@
 /* Return the canonical absolute name of a given file.
-   Copyright (C) 1996-2009 Free Software Foundation, Inc.
+   Copyright (C) 1996-2011 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -31,6 +31,12 @@
 #include "xalloc.h"
 #include "xgetcwd.h"
 
+/* In this file, we cannot handle file names longer than PATH_MAX.
+   On systems with no file name length limit, use a fallback.  */
+#ifndef PATH_MAX
+# define PATH_MAX 8192
+#endif
+
 #ifndef DOUBLE_SLASH_IS_DISTINCT_ROOT
 # define DOUBLE_SLASH_IS_DISTINCT_ROOT 0
 #endif
@@ -272,6 +278,8 @@ canonicalize_filename_mode (const char *name, canonicalize_mode_t can_mode)
   if (DOUBLE_SLASH_IS_DISTINCT_ROOT && dest == rname + 1 && *dest == '/')
     dest++;
   *dest = '\0';
+  if (rname_limit != dest + 1)
+    rname = xrealloc (rname, dest - rname + 1);
 
   free (extra_buf);
   if (ht)