Home | History | Annotate | Download | only in linux
      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef _UAPI_LINUX_SOCKET_H
      3 #define _UAPI_LINUX_SOCKET_H
      4 
      5 /*
      6  * Desired design of maximum size and alignment (see RFC2553)
      7  */
      8 #define _K_SS_MAXSIZE	128	/* Implementation specific max size */
      9 #define _K_SS_ALIGNSIZE	(__alignof__ (struct sockaddr *))
     10 				/* Implementation specific desired alignment */
     11 
     12 typedef unsigned short __kernel_sa_family_t;
     13 
     14 struct __kernel_sockaddr_storage {
     15 	__kernel_sa_family_t	ss_family;		/* address family */
     16 	/* Following field(s) are implementation specific */
     17 	char		__data[_K_SS_MAXSIZE - sizeof(unsigned short)];
     18 				/* space to achieve desired size, */
     19 				/* _SS_MAXSIZE value minus size of ss_family */
     20 } __attribute__ ((aligned(_K_SS_ALIGNSIZE)));	/* force desired alignment */
     21 
     22 #endif /* _UAPI_LINUX_SOCKET_H */
     23