- deraadt@cvs.openbsd.org 2008/03/13 01:49:53

     [monitor_fdpass.c]
     Correct CMSG_SPACE and CMSG_LEN usage everywhere in the tree. Due to
     an extensive discussion with otto, kettenis, millert, and hshoexer

1 files changed, 9 insertions, 8 deletions

diff --git a/monitor_fdpass.c b/monitor_fdpass.c
index fb00ab7ab..a3e995df8 100644
--- a/monitor_fdpass.c
+++ b/monitor_fdpass.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: monitor_fdpass.c,v 1.14 2008/03/02 18:19:35 deraadt Exp $ */
+/* $OpenBSD: monitor_fdpass.c,v 1.15 2008/03/13 01:49:53 deraadt Exp $ */
 /*
  * Copyright 2001 Niels Provos <provos@citi.umich.edu>
  * All rights reserved.
@@ -52,7 +52,8 @@ mm_send_fd(int sock, int fd)
         union {
                 struct cmsghdr hdr;
                 char tmp[CMSG_SPACE(sizeof(int))];
-        } tmp;
+                char buf[CMSG_SPACE(sizeof(int))];
+        } cmsgbuf;
         struct cmsghdr *cmsg;
 #endif
 
@@ -61,8 +62,8 @@ mm_send_fd(int sock, int fd)
         msg.msg_accrights = (caddr_t)&fd;
         msg.msg_accrightslen = sizeof(fd);
 #else
-        msg.msg_control = (caddr_t)&tmp;
-        msg.msg_controllen = CMSG_LEN(sizeof(int));
+        msg.msg_control = (caddr_t)&cmsgbuf.buf;
+        msg.msg_controllen = sizeof(cmsgbuf.buf);
         cmsg = CMSG_FIRSTHDR(&msg);
         cmsg->cmsg_len = CMSG_LEN(sizeof(int));
         cmsg->cmsg_level = SOL_SOCKET;
@@ -104,9 +105,9 @@ mm_receive_fd(int sock)
         int fd;
 #ifndef HAVE_ACCRIGHTS_IN_MSGHDR
         union {
-                char tmp[CMSG_SPACE(sizeof(int))];
                 struct cmsghdr hdr;
-        } tmp;
+                char buf[CMSG_SPACE(sizeof(int))];
+        } cmsgbuf;
         struct cmsghdr *cmsg;
 #endif
 
@@ -119,8 +120,8 @@ mm_receive_fd(int sock)
         msg.msg_accrights = (caddr_t)&fd;
         msg.msg_accrightslen = sizeof(fd);
 #else
-        msg.msg_control = &tmp;
-        msg.msg_controllen = sizeof(tmp);
+        msg.msg_control = &cmsgbuf.buf;
+        msg.msg_controllen = sizeof(cmsgbuf.buf);
 #endif
 
         if ((n = recvmsg(sock, &msg, 0)) == -1) {