diff options
Diffstat (limited to 'socket/sys/socket.h')
| -rw-r--r-- | socket/sys/socket.h | 52 |
1 files changed, 33 insertions, 19 deletions
diff --git a/socket/sys/socket.h b/socket/sys/socket.h index 6521721..9b88e64 100644 --- a/socket/sys/socket.h +++ b/socket/sys/socket.h @@ -115,25 +115,38 @@ struct sockaddr /* This is the type we use for generic socket address arguments. - NOTE: Since this functionality is volatile, I'm disabling the use of it for - now. - - With GCC 2.6 and later, the funky union causes redeclarations or uses with + With GCC 2.7 and later, the funky union causes redeclarations or uses with any of the listed types to be allowed without complaint. */ #if (!defined (__GNUC__) || __GNUC__ < 2 || \ - /*(__GNUC__ == 2 && __GNUC_MINOR__ < 6)*/ 1) -#define __SOCKADDR_ARG struct sockaddr * + (__GNUC__ == 2 && __GNUC_MINOR__ < 7)) +#define __SOCKADDR_ARG struct sockaddr * +#define __CONST_SOCKADDR_ARG __const struct sockaddr * #else -/* Bring these names into being at top-level scope, in case they have not been - defined yet. Add more `struct sockaddr_AF' types here as necessary. */ -struct sockaddr_in; -struct sockaddr_un; -struct sockaddr_ns; -typedef union { struct sockaddr *__sa; - struct sockaddr_in *__sa_in; - struct sockaddr_un *__sa_un; - struct sockaddr_ns *__sa_ns; - } __SOCKADDR_ARG __attribute__ ((transparent_union)); +/* Add more `struct sockaddr_AF' types here as necessary. + These are all the ones I found on NetBSD and Linux. */ +#define __SOCKADDR_ALLTYPES \ + __SOCKADDR_ONETYPE (sockaddr) \ + __SOCKADDR_ONETYPE (sockaddr_at) \ + __SOCKADDR_ONETYPE (sockaddr_ax25) \ + __SOCKADDR_ONETYPE (sockaddr_dl) \ + __SOCKADDR_ONETYPE (sockaddr_eon) \ + __SOCKADDR_ONETYPE (sockaddr_in) \ + __SOCKADDR_ONETYPE (sockaddr_in6) \ + __SOCKADDR_ONETYPE (sockaddr_inarp) \ + __SOCKADDR_ONETYPE (sockaddr_ipx) \ + __SOCKADDR_ONETYPE (sockaddr_iso) \ + __SOCKADDR_ONETYPE (sockaddr_ns) \ + __SOCKADDR_ONETYPE (sockaddr_un) \ + __SOCKADDR_ONETYPE (sockaddr_x25) + +#define __SOCKADDR_ONETYPE(type) struct type *__##type##__; +typedef union { __SOCKADDR_ALLTYPES + } __SOCKADDR_ARG __attribute__ ((__transparent_union__)); +#undef __SOCKADDR_ONETYPE +#define __SOCKADDR_ONETYPE(type) __const struct type *__##type##__; +typedef union { __SOCKADDR_ALLTYPES + } __CONST_SOCKADDR_ARG __attribute__ ((__transparent_union__)); +#undef __SOCKADDR_ONETYPE #endif @@ -151,7 +164,7 @@ extern int socketpair __P ((int __domain, enum __socket_type __type, int __protocol, int __fds[2])); /* Give the socket FD the local address ADDR (which is LEN bytes long). */ -extern int bind __P ((int __fd, __SOCKADDR_ARG __addr, size_t __len)); +extern int bind __P ((int __fd, __CONST_SOCKADDR_ARG __addr, size_t __len)); /* Put the local address of FD into *ADDR and its length in *LEN. */ extern int getsockname __P ((int __fd, __SOCKADDR_ARG __addr, @@ -161,7 +174,8 @@ extern int getsockname __P ((int __fd, __SOCKADDR_ARG __addr, For connectionless socket types, just set the default address to send to and the only address from which to accept transmissions. Return 0 on success, -1 for errors. */ -extern int connect __P ((int __fd, __SOCKADDR_ARG __addr, size_t __len)); +extern int connect __P ((int __fd, + __CONST_SOCKADDR_ARG __addr, size_t __len)); /* Put the address of the peer connected to socket FD into *ADDR (which is *LEN bytes long), and its actual length into *LEN. */ @@ -192,7 +206,7 @@ extern int recv __P ((int __fd, __ptr_t __buf, size_t __n, int __flags)); /* Send N bytes of BUF on socket FD to peer at address ADDR (which is ADDR_LEN bytes long). Returns the number sent, or -1 for errors. */ extern int sendto __P ((int __fd, __ptr_t __buf, size_t __n, int __flags, - __SOCKADDR_ARG __addr, size_t __addr_len)); + __CONST_SOCKADDR_ARG __addr, size_t __addr_len)); /* Read N bytes into BUF through socket FD. If ADDR is not NULL, fill in *ADDR_LEN bytes of it with tha address of |