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authorDarren Tucker <dtucker@zip.com.au>2003-08-07 15:58:28 +1000
committerDarren Tucker <dtucker@zip.com.au>2003-08-07 15:58:28 +1000
commitf315224d7c7ced4f012ddaef1a6b4f4bf7883b25 (patch)
tree5c076ebdf79ef0703be87c567e3a045fb90eeeca
parent89f4cf0d29c3cfbdd4ef697944afde7a887b5b1a (diff)
downloadopenssh-git-f315224d7c7ced4f012ddaef1a6b4f4bf7883b25.tar.gz
- (dtucker) [defines.h] Bug #336: Add CMSG_DATA and CMSG_FIRSTHDR macros if
not already defined (eg Linux with some versions of libc5), based on those from OpenBSD.
-rw-r--r--ChangeLog7
-rw-r--r--defines.h20
2 files changed, 24 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index 0f2f798e..513799d3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,7 +2,10 @@
- (dtucker) [session.c] Have session_break_req not attempt to send a break
if TIOCSBRK and TIOCCBRK are not defined (eg Cygwin).
- (dtucker) [canohost.c] Bug #336: Only check ip options if IP_OPTIONS is
- defined (eg really old Linux).
+ defined (fixes compile error on really old Linuxes).
+ - (dtucker) [defines.h] Bug #336: Add CMSG_DATA and CMSG_FIRSTHDR macros if
+ not already defined (eg Linux with some versions of libc5), based on those
+ from OpenBSD.
20030802
- (dtucker) [monitor.h monitor_wrap.h] Remove excess ident tags.
@@ -791,4 +794,4 @@
- Fix sshd BindAddress and -b options for systems using fake-getaddrinfo.
Report from murple@murple.net, diagnosis from dtucker@zip.com.au
-$Id: ChangeLog,v 1.2881 2003/08/07 03:29:04 dtucker Exp $
+$Id: ChangeLog,v 1.2882 2003/08/07 05:58:28 dtucker Exp $
diff --git a/defines.h b/defines.h
index ec610d0d..3679ea54 100644
--- a/defines.h
+++ b/defines.h
@@ -25,7 +25,7 @@
#ifndef _DEFINES_H
#define _DEFINES_H
-/* $Id: defines.h,v 1.99 2003/06/11 12:51:32 djm Exp $ */
+/* $Id: defines.h,v 1.100 2003/08/07 05:58:28 dtucker Exp $ */
/* Constants */
@@ -577,4 +577,22 @@ struct winsize {
/** end of login recorder definitions */
+#ifndef CMSG_DATA
+/* given pointer to struct cmsghdr, return pointer to data */
+#define CMSG_DATA(cmsg) \
+ ((u_char *)(cmsg) + (((u_int)(sizeof(struct cmsghdr)) \
+ (sizeof(int) - 1)) &~ (sizeof(int) - 1)))
+#endif /* CMSG_DATA */
+
+#ifndef CMSG_FIRSTHDR
+/*
+ * RFC 2292 requires to check msg_controllen, in case that the kernel returns
+ * an empty list for some reasons.
+ */
+# define CMSG_FIRSTHDR(mhdr) \
+ ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \
+ (struct cmsghdr *)(mhdr)->msg_control : \
+ (struct cmsghdr *)NULL)
+#endif /* CMSG_FIRSTHDR */
+
#endif /* _DEFINES_H */