Branch
Hash :
d3a9a1f7
Author :
Date :
2025-01-10T23:52:54
sys_un-h: Ensure that <sys/un.h> defines sa_family_t. * lib/sys_un.in.h: Include <sys/socket.h> or define sa_family_t explicitly. * m4/sys_socket_h.m4 (gl_PREREQ_SYS_SA_FAMILY): New macro, extracted from gl_SYS_SOCKET_H. (gl_SYS_SOCKET_H): Invoke it. (gl_SYS_SOCKET_H_DEFAULTS): Don't initialize HAVE_SA_FAMILY_T. * m4/sys_un_h.m4 (gl_SYS_UN_H): Invoke gl_PREREQ_SYS_SA_FAMILY. Test whether <sys/un.h> defines sa_family_t. If not, set GL_GENERATE_SYS_UN_H to true. * modules/sys_un-h (Makefile.am): Substitute HAVE_SA_FAMILY_T, HAVE_SA_FAMILY_T_IN_SYS_UN_H. * tests/test-sys_un-h.c: Include intprops.h. Verify that sa_family_t is defined and an unsigned integer type. * modules/sys_un-h-tests (Depends-on): Add intprops. * doc/posix-headers/sys_un.texi: Mention the problem with sa_family_t.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
/* Test of the <sys/un.h> substitute.
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
This file 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Collin Funk <collin.funk1@gmail.com>, 2024. */
#include <config.h>
#if HAVE_UNIXSOCKET
/* Specification. */
# include <sys/un.h>
# include "intprops.h"
/* POSIX requires that sa_family_t is an unsigned integer type. */
static_assert (! TYPE_SIGNED (sa_family_t));
int
main (void)
{
struct sockaddr_un sa;
/* POSIX requires sun_path is 92 bytes or greater. */
static_assert (92 <= sizeof sa.sun_path);
return 0;
}
#else
/* UNIX domain sockets unsupported. */
# include <stdio.h>
int
main (void)
{
fputs ("Skipping test: UNIX domain sockets not supported\n", stderr);
return 77;
}
#endif