static __inline__ struct target_cmsghdr *
__target_cmsg_nxthdr (struct target_msghdr *__mhdr, struct target_cmsghdr *__cmsg)
{
- if (tswapl(__cmsg->cmsg_len) < sizeof (struct target_cmsghdr))
- /* The kernel header does this so there may be a reason. */
- return 0;
-
- __cmsg = (struct target_cmsghdr *) ((unsigned char *) __cmsg
- + TARGET_CMSG_ALIGN (tswapl(__cmsg->cmsg_len)));
- if ((unsigned char *) (__cmsg + 1) > ((unsigned char *) (unsigned long)tswapl(__mhdr->msg_control)
- + tswapl(__mhdr->msg_controllen))
- || ((unsigned char *) __cmsg + TARGET_CMSG_ALIGN (tswapl(__cmsg->cmsg_len))
- > ((unsigned char *) (unsigned long) tswapl(__mhdr->msg_control)
- + tswapl(__mhdr->msg_controllen))))
+ struct target_cmsghdr *__ptr;
+
+ __ptr = (struct target_cmsghdr *)((unsigned char *) __cmsg
+ + TARGET_CMSG_ALIGN (tswapl(__cmsg->cmsg_len)));
+ if ((unsigned long)((char *)(__ptr+1) - (char *)(size_t)tswapl(__mhdr->msg_control))
+ > tswapl(__mhdr->msg_controllen))
/* No more entries. */
- return 0;
+ return (struct target_cmsghdr *)0;
return __cmsg;
}