From 683400f4278fe0db00592c06522979be845bcc45 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 10 Nov 2004 07:17:53 +0000
Subject: * dir.c (rb_glob2): do not allocate buffer from heap to avoid  
 memory leaks.  use string object for buffering instead.   [ruby-dev:24738]

* dir.c (join_path): ditto.

* io.c (io_read): external input buffer may be modified even after
  rb_str_locktmp().  [ruby-dev:24735]

* dir.c (fnmatch): p or s may be NULL.  [ruby-dev:24749]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7242 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 0dbb6b741c..5abe8dd5c8 100644
--- a/io.c
+++ b/io.c
@@ -330,7 +330,9 @@ io_fflush(f, fptr)
         rb_io_check_closed(fptr);
     }
     for (;;) {
+	TRAP_BEG;
 	n = fflush(f);
+	TRAP_END;
 	if (n != EOF) break;
 	if (!rb_io_wait_writable(fileno(f)))
 	    rb_sys_fail(fptr->path);
@@ -1216,6 +1218,9 @@ io_read(argc, argv, io)
 
     rb_str_locktmp(str);
     READ_CHECK(fptr->f);
+    if (RSTRING(str)->len != len) {
+	rb_raise(rb_eRuntimeError, "buffer string modified");
+    }
     n = rb_io_fread(RSTRING(str)->ptr, len, fptr->f);
     rb_str_unlocktmp(str);
     if (n == 0) {
-- 
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