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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-10-08 03:36:54 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2004-10-08 03:36:54 +0000
commit116fee990e95bf7024d15ca816c1dce4e4ea419c (patch)
tree28585f0e2fab7921f475df3db56f86323acbd288 /pack.c
parente6b852a2fa7b18fcf20f39e492d75c637e55e80d (diff)
* pack.c (pack_pack): pointer modification check before each
iteration. [ruby-dev:24445] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@7015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'pack.c')
-rw-r--r--pack.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/pack.c b/pack.c
index a435e13..498c355 100644
--- a/pack.c
+++ b/pack.c
@@ -499,6 +499,9 @@ pack_pack(ary, fmt)
#define NEXTFROM (items-- > 0 ? RARRAY(ary)->ptr[idx++] : (rb_raise(rb_eArgError, toofew),0))
while (p < pend) {
+ if (RSTRING(fmt)->ptr + RSTRING(fmt)->len != pend) {
+ rb_raise(rb_eRuntimeError, "format string modified");
+ }
type = *p++; /* get data type */
#ifdef NATINT_PACK
natint = 0;