cppfiles.c (read_include_file): Set buffer size properly when file is shorter than expected.

	* cppfiles.c (read_include_file): Set buffer size properly when
	file is shorter than expected.

From-SVN: r47931

gcc/ChangeLog

+Wed Dec 12 07:35:24 2001  Douglas B. Rupp  <rupp@gnat.com>
+
+	* cppfiles.c (read_include_file): Set buffer size properly when
+	file is shorter than expected.
+
 Wed Dec 12 08:35:33 2001  Nicola Pero  <n.pero@mi.flashnet.it>
 
 	* objc/objc-act.c (encode_complete_bitfield): Fixed encoding

gcc/cppfiles.c

@@ -413,8 +413,9 @@ read_include_file (pfile, inc)
 		  if (!STAT_SIZE_TOO_BIG (inc->st))
 		    cpp_warning
 		      (pfile, "%s is shorter than expected", inc->name);
-		  buf = xrealloc (buf, offset);
-		  inc->st.st_size = offset;
+		  size = offset;
+		  buf = xrealloc (buf, size + 1);
+		  inc->st.st_size = size;
 		  break;
 		}
 	      offset += count;