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inet: Make IN6_IS_ADDR_UNSPECIFIED etc. usable with POSIX [BZ #16421]
Previously, under some feature test macros and compilers, the macros were defined, but references undefined struct members in their implementation.
This commit is contained in:
Florian Weimer
parent
c23de0aacb
commit
0abbe7cd70
15
ChangeLog
15
ChangeLog
@ -1,3 +1,18 @@
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2016-12-09 Carlos O'Donell <carlos@redhat.com>
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Florian Weimer <fweimer@redhat.com>
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[BZ #16421]
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* inet/netinet/in.h (struct in6_addr): Always define __u6_addr16
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and __u6_addr32 members.
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(IN6_IS_ADDR_UNSPECIFIED, IN6_IS_ADDR_LOOPBACK)
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(IN6_IS_ADDR_LINKLOCAL, IN6_IS_ADDR_SITELOCAL)
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(IN6_IS_ADDR_V4MAPPED, IN6_IS_ADDR_V4COMPAT, IN6_ARE_ADDR_EQUAL):
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Use __u6_addr32.
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* inet/tst-checks.c: Use <support/test-driver.c>
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* inet/tst-checks-posix.c: New file.
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* inet/Makefile (tests): Add it.
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(CFLAGS-tst-checks-posix.c): Compile in C99 mode.
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2016-12-09 Florian Weimer <fweimer@redhat.com>
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New subdirectory support for build and test infrastructure.
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@ -51,8 +51,8 @@ aux := check_pf check_native ifreq
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tests := htontest test_ifindex tst-ntoa tst-ether_aton tst-network \
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tst-gethnm test-ifaddrs bug-if1 test-inet6_opt tst-ether_line \
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tst-getni1 tst-getni2 tst-inet6_rth tst-checks tst-sockaddr \
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tst-inet6_scopeid_pton
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tst-getni1 tst-getni2 tst-inet6_rth tst-checks tst-checks-posix \
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tst-sockaddr tst-inet6_scopeid_pton
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include ../Rules
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@ -86,6 +86,7 @@ CFLAGS-either_hton.c = -fexceptions
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CFLAGS-getnetgrent.c = -fexceptions
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CFLAGS-getnetgrent_r.c = -fexceptions
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CFLAGS-tst-checks-posix.c = -std=c99
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CFLAGS-tst-sockaddr.c = -fno-strict-aliasing
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endif
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@ -213,10 +213,8 @@ struct in6_addr
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union
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{
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uint8_t __u6_addr8[16];
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#ifdef __USE_MISC
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uint16_t __u6_addr16[8];
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uint32_t __u6_addr32[4];
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#endif
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} __in6_u;
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#define s6_addr __in6_u.__u6_addr8
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#ifdef __USE_MISC
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@ -411,52 +409,52 @@ extern uint16_t htons (uint16_t __hostshort)
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# define IN6_IS_ADDR_UNSPECIFIED(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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__a->s6_addr32[0] == 0 \
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&& __a->s6_addr32[1] == 0 \
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&& __a->s6_addr32[2] == 0 \
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&& __a->s6_addr32[3] == 0; }))
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__a->__in6_u.__u6_addr32[0] == 0 \
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&& __a->__in6_u.__u6_addr32[1] == 0 \
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&& __a->__in6_u.__u6_addr32[2] == 0 \
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&& __a->__in6_u.__u6_addr32[3] == 0; }))
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# define IN6_IS_ADDR_LOOPBACK(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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__a->s6_addr32[0] == 0 \
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&& __a->s6_addr32[1] == 0 \
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&& __a->s6_addr32[2] == 0 \
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&& __a->s6_addr32[3] == htonl (1); }))
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__a->__in6_u.__u6_addr32[0] == 0 \
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&& __a->__in6_u.__u6_addr32[1] == 0 \
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&& __a->__in6_u.__u6_addr32[2] == 0 \
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&& __a->__in6_u.__u6_addr32[3] == htonl (1); }))
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# define IN6_IS_ADDR_LINKLOCAL(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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(__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); }))
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(__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); }))
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# define IN6_IS_ADDR_SITELOCAL(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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(__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); }))
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(__a->__in6_u.__u6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); }))
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# define IN6_IS_ADDR_V4MAPPED(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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__a->s6_addr32[0] == 0 \
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&& __a->s6_addr32[1] == 0 \
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&& __a->s6_addr32[2] == htonl (0xffff); }))
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__a->__in6_u.__u6_addr32[0] == 0 \
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&& __a->__in6_u.__u6_addr32[1] == 0 \
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&& __a->__in6_u.__u6_addr32[2] == htonl (0xffff); }))
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# define IN6_IS_ADDR_V4COMPAT(a) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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__a->s6_addr32[0] == 0 \
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&& __a->s6_addr32[1] == 0 \
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&& __a->s6_addr32[2] == 0 \
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&& ntohl (__a->s6_addr32[3]) > 1; }))
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__a->__in6_u.__u6_addr32[0] == 0 \
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&& __a->__in6_u.__u6_addr32[1] == 0 \
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&& __a->__in6_u.__u6_addr32[2] == 0 \
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&& ntohl (__a->__in6_u.__u6_addr32[3]) > 1; }))
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# define IN6_ARE_ADDR_EQUAL(a,b) \
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(__extension__ \
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({ const struct in6_addr *__a = (const struct in6_addr *) (a); \
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const struct in6_addr *__b = (const struct in6_addr *) (b); \
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__a->s6_addr32[0] == __b->s6_addr32[0] \
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&& __a->s6_addr32[1] == __b->s6_addr32[1] \
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&& __a->s6_addr32[2] == __b->s6_addr32[2] \
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&& __a->s6_addr32[3] == __b->s6_addr32[3]; }))
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__a->__in6_u.__u6_addr32[0] == __b->__in6_u.__u6_addr32[0] \
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&& __a->__in6_u.__u6_addr32[1] == __b->__in6_u.__u6_addr32[1] \
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&& __a->__in6_u.__u6_addr32[2] == __b->__in6_u.__u6_addr32[2] \
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&& __a->__in6_u.__u6_addr32[3] == __b->__in6_u.__u6_addr32[3]; }))
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#else
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# define IN6_IS_ADDR_UNSPECIFIED(a) \
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(((const uint32_t *) (a))[0] == 0 \
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24
inet/tst-checks-posix.c
Normal file
24
inet/tst-checks-posix.c
Normal file
@ -0,0 +1,24 @@
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/* Test IPv6 classification macros in POSIX mode.
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Copyright (C) 2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* Process tst-checks.c in POSIX mode. */
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#undef _GNU_SOURCE
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#define _POSIX_C_SOURCE 200112L
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#define _ISOMAC
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#include "tst-checks.c"
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@ -169,5 +169,4 @@ do_test (void)
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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#include <support/test-driver.c>
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