diff options
| -rw-r--r-- | include/sys/socket.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/sys/socket.h b/include/sys/socket.h index fd653490..67883750 100644 --- a/include/sys/socket.h +++ b/include/sys/socket.h @@ -266,9 +266,9 @@ struct linger #define __MHDR_END(mhdr) ((unsigned char *)(mhdr)->msg_control + (mhdr)->msg_controllen) #define CMSG_DATA(cmsg) ((unsigned char *) (((struct cmsghdr *)(cmsg)) + 1)) -#define CMSG_NXTHDR(mhdr, cmsg) ((cmsg)->cmsg_len < sizeof (struct cmsghdr) ? (struct cmsghdr *)0 : \ - (__CMSG_NEXT(cmsg) + sizeof (struct cmsghdr) >= __MHDR_END(mhdr) ? (struct cmsghdr *)0 : \ - ((struct cmsghdr *)__CMSG_NEXT(cmsg)))) +#define CMSG_NXTHDR(mhdr, cmsg) ((cmsg)->cmsg_len < sizeof (struct cmsghdr) || \ + __CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= __MHDR_END(mhdr) - (unsigned char *)(cmsg) \ + ? 0 : (struct cmsghdr *)__CMSG_NEXT(cmsg)) #define CMSG_FIRSTHDR(mhdr) ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0) #define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) & (size_t) ~(sizeof (size_t) - 1)) |