>Number:         6991
>Category:       bin
>Synopsis:       regress/sys/kern/unfdpass fails to compile
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    bin-bug-people (Utility Bug People)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Feb 12 03:35:01 1999
>Last-Modified:
>Originator:     Wolfgang Helbig
>Organization:
	
>Release:        NetBSD-current Feb 11 1999
>Environment:
	
System: NetBSD rvc1 1.3I NetBSD 1.3I (RVC1) #7: Thu Feb 11 22:00:49 CET 1999 helbig@rvc1:/usr/src/sys/arch/i386/compile/RVC1 i386


>Description:
all ===> regress/sys/kern/unfdpass
cc -O2  -Werror   -c /usr/src/regress/sys/kern/unfdpass/unfdpass.c
cc1: warnings being treated as errors
/usr/src/regress/sys/kern/unfdpass/unfdpass.c: In function `main':
/usr/src/regress/sys/kern/unfdpass/unfdpass.c:193: warning: comparison of distinct pointer types lacks a cast
*** Error code 1

Stop.
>How-To-Repeat:
	
>Fix:
	A patch to sys/sys/socket.h:
--- socket.h.old	Thu Feb 11 13:26:00 1999
+++ socket.h	Fri Feb 12 12:13:20 1999
@@ -349,7 +349,7 @@
 /* given pointer to struct cmsghdr, return pointer to next cmsghdr */
 #define	CMSG_NXTHDR(mhdr, cmsg)	\
 	(((caddr_t)(cmsg) + (cmsg)->cmsg_len + sizeof(struct cmsghdr) > \
-	    (mhdr)->msg_control + (mhdr)->msg_controllen) ? \
+	    (caddr_t)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \
 	    (struct cmsghdr *)NULL : \
 	    (struct cmsghdr *)((caddr_t)(cmsg) + ALIGN((cmsg)->cmsg_len)))
 
>Audit-Trail:
>Unformatted: