diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/socketbits.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/socketbits.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/socketbits.h b/sysdeps/unix/sysv/linux/socketbits.h index 101afc268c..e60f903fc5 100644 --- a/sysdeps/unix/sysv/linux/socketbits.h +++ b/sysdeps/unix/sysv/linux/socketbits.h @@ -158,9 +158,13 @@ struct cmsghdr #endif #define CMSG_NXTHDR(mhdr, cmsg) __cmsg_nxthdr (mhdr, cmsg) #define CMSG_FIRSTHDR(mhdr) \ - ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ + ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) \ ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) NULL) - +#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) \ + & ~(sizeof (size_t) - 1)) +#define CMSG_SPACE(len) (CMSG_ALIGN (len) \ + + CMSG_ALIGN (sizeof (struct cmsghdr))) +#define CMSG_LEN(len) (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len)) #ifndef _EXTERN_INLINE # define _EXTERN_INLINE extern __inline |