* cpplib.c (_cpp_parse_assertion): Fix buffer overrun.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34872 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c157907..ecde519 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2000-07-05  Zack Weinberg  <zack@wolery.cumb.org>
+
+       * cpplib.c (_cpp_parse_assertion): Fix buffer overrun.
+
 2000-07-04  Zack Weinberg  <zack@wolery.cumb.org>
 
        * cpplex.c: Don't include sys/mman.h.

diff --git a/gcc/cpplib.c b/gcc/cpplib.c
index 2ee5849..b0008af 100644 (file)
--- a/gcc/cpplib.c
+++ b/gcc/cpplib.c
@@ -1322,8 +1322,8 @@ _cpp_parse_assertion (pfile, answerp)
 
  lookup_node:
   *answerp = answer;
-  len = predicate->val.name.len + 1;
-  sym = alloca (len);
+  len = predicate->val.name.len;
+  sym = alloca (len + 1);
 
   /* Prefix '#' to get it out of macro namespace.  */
   sym[0] = '#';