From 5314b52068c6e795917842e1397eaf07e564eb0b Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 23 Jul 2011 08:13:37 +0000
Subject: * io.c (rb_update_max_fd): validate fd.

* ext/socket/rubysocket.h (rsock_discard_cmsg_resource): add
  msg_peek_p argument for the declaration.

* ext/socket/ancdata.c (discard_cmsg): add msg_peek_p argument.
  assume FreeBSD, NetBSD and MacOS X doesn't generate passed fd
  when MSG_PEEK.
  (rsock_discard_cmsg_resource): add msg_peek_p argument.
  (bsock_recvmsg_internal): call rsock_discard_cmsg_resource with
  msg_peek_p argument.

* ext/socket/unixsocket.c (unix_recv_io): call
  rsock_discard_cmsg_resource with msg_peek_p argument.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@32638 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 io.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'io.c')

diff --git a/io.c b/io.c
index 840498c94c..5307ad4d3f 100644
--- a/io.c
+++ b/io.c
@@ -154,6 +154,10 @@ static int max_file_descriptor = NOFILE;
 void
 rb_update_max_fd(int fd)
 {
+    struct stat buf;
+    if (fstat(fd, &buf) != 0) {
+        rb_bug("rb_update_max_fd: invalid fd (%d) given.", fd);
+    }
     if (max_file_descriptor < fd) max_file_descriptor = fd;
 }
 
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