--- /dev/null
+/* Tests for socket address type definitions.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+/* This is a copy of the previous definition of struct
+ sockaddr_storage. It is not equal to the old value of _SS_SIZE
+ (128) on all architectures. We must stay compatible with the old
+ definition. */
+
+#define OLD_REFERENCE_SIZE 128
+#define OLD_PADSIZE (OLD_REFERENCE_SIZE - (2 * sizeof (__ss_aligntype)))
+struct sockaddr_storage_old
+ {
+ __SOCKADDR_COMMON (old_);
+ __ss_aligntype old_align;
+ char old_padding[OLD_PADSIZE];
+ };
+
+static bool errors;
+
+static void
+check (bool ok, const char *message)
+{
+ if (!ok)
+ {
+ printf ("error: failed check: %s\n", message);
+ errors = true;
+ }
+}
+
+static int
+do_test (void)
+{
+ check (OLD_REFERENCE_SIZE >= _SS_SIZE,
+ "old target size is not smaller than actual size");
+ check (sizeof (struct sockaddr_storage_old)
+ == sizeof (struct sockaddr_storage),
+ "old and new sizes match");
+ check (__alignof (struct sockaddr_storage_old)
+ == __alignof (struct sockaddr_storage),
+ "old and new alignment matches");
+ check (offsetof (struct sockaddr_storage_old, old_family)
+ == offsetof (struct sockaddr_storage, ss_family),
+ "old and new family offsets match");
+ check (sizeof (struct sockaddr_storage) == _SS_SIZE,
+ "struct sockaddr_storage size");
+
+ /* Check for lack of holes in the struct definition. */
+ check (offsetof (struct sockaddr_storage, __ss_padding)
+ == __SOCKADDR_COMMON_SIZE,
+ "implicit padding before explicit padding");
+ check (offsetof (struct sockaddr_storage, __ss_align)
+ == __SOCKADDR_COMMON_SIZE
+ + sizeof (((struct sockaddr_storage) {}).__ss_padding),
+ "implicit padding before explicit padding");
+
+ /* Check for POSIX compatibility requirements between struct
+ sockaddr_storage and struct sockaddr_un. */
+ check (sizeof (struct sockaddr_storage) >= sizeof (struct sockaddr_un),
+ "sockaddr_storage is at least as large as sockaddr_un");
+ check (__alignof (struct sockaddr_storage)
+ >= __alignof (struct sockaddr_un),
+ "sockaddr_storage is at least as aligned as sockaddr_un");
+ check (offsetof (struct sockaddr_storage, ss_family)
+ == offsetof (struct sockaddr_un, sun_family),
+ "family offsets match");
+
+ /* Check that the compiler preserves bit patterns in aggregate
+ copies. Based on <https://gcc.gnu.org/PR71120>. */
+ check (sizeof (struct sockaddr_storage) >= sizeof (struct sockaddr_in),
+ "sockaddr_storage is at least as large as sockaddr_in");
+ {
+ struct sockaddr_storage addr;
+ memset (&addr, 0, sizeof (addr));
+ {
+ struct sockaddr_in *sinp = (struct sockaddr_in *)&addr;
+ sinp->sin_family = AF_INET;
+ sinp->sin_addr.s_addr = htonl (INADDR_LOOPBACK);
+ sinp->sin_port = htons (80);
+ }
+ struct sockaddr_storage copy;
+ copy = addr;
+
+ struct sockaddr_storage *p = malloc (sizeof (*p));
+ if (p == NULL)
+ {
+ printf ("error: malloc: %m\n");
+ return 1;
+ }
+ *p = copy;
+ const struct sockaddr_in *sinp = (const struct sockaddr_in *)p;
+ check (sinp->sin_family == AF_INET, "sin_family");
+ check (sinp->sin_addr.s_addr == htonl (INADDR_LOOPBACK), "sin_addr");
+ check (sinp->sin_port == htons (80), "sin_port");
+ free (p);
+ }
+
+ return errors;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
--- /dev/null
+/* Definition of struct sockaddr_* members and sizes, Linux/m68k version.
+ Copyright (C) 1995-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * Never include this file directly; use <sys/socket.h> instead.
+ */
+
+#ifndef _BITS_SOCKADDR_H
+#define _BITS_SOCKADDR_H 1
+
+
+/* POSIX.1g specifies this type name for the `sa_family' member. */
+typedef unsigned short int sa_family_t;
+
+/* This macro is used to declare the initial common members
+ of the data types used for socket addresses, `struct sockaddr',
+ `struct sockaddr_in', `struct sockaddr_un', etc. */
+
+#define __SOCKADDR_COMMON(sa_prefix) \
+ sa_family_t sa_prefix##family
+
+#define __SOCKADDR_COMMON_SIZE (sizeof (unsigned short int))
+
+/* Size of struct sockaddr_storage. */
+#define _SS_SIZE 126
+
+#endif /* bits/sockaddr.h */
projects / thirdparty / glibc.git / commitdiff
