1 #ifndef _UAPI_LINUX_SOCKET_H 2 #define _UAPI_LINUX_SOCKET_H 3 4 /* 5 * Desired design of maximum size and alignment (see RFC2553) 6 */ 7 #define _K_SS_MAXSIZE 128 /* Implementation specific max size */ 8 #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *)) 9 /* Implementation specific desired alignment */ 10 11 typedef unsigned short __kernel_sa_family_t; 12 13 struct __kernel_sockaddr_storage { 14 __kernel_sa_family_t ss_family; /* address family */ 15 /* Following field(s) are implementation specific */ 16 char __data[_K_SS_MAXSIZE - sizeof(unsigned short)]; 17 /* space to achieve desired size, */ 18 /* _SS_MAXSIZE value minus size of ss_family */ 19 } __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */ 20 21 #endif /* _UAPI_LINUX_SOCKET_H */ 22