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68507377f2
The inline and library functions that the CMSG_NXTHDR macro may expand
to increment the pointer to the header before checking the stride of
the increment against available space. Since C only allows incrementing
pointers to one past the end of an array, the increment must be done
after a length check. This commit fixes that and includes a regression
test for CMSG_FIRSTHDR and CMSG_NXTHDR.
The Linux, Hurd, and generic headers are all changed.
Tested on Linux on armv7hl, i686, x86_64, aarch64, ppc64le, and s390x.
[BZ #28846]
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 9c443ac455)
60 lines
1.9 KiB
Makefile
60 lines
1.9 KiB
Makefile
# Copyright (C) 1991-2021 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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# <https://www.gnu.org/licenses/>.
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#
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# Sub-makefile for socket portion of the library.
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#
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subdir := socket
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include ../Makeconfig
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headers := sys/socket.h sys/un.h bits/sockaddr.h bits/socket.h \
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bits/socket2.h bits/types/struct_osockaddr.h \
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sys/socketvar.h net/if.h
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routines := accept bind connect getpeername getsockname getsockopt \
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listen recv recvfrom recvmsg send sendmsg sendto \
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setsockopt shutdown socket socketpair isfdtype opensock \
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sockatmark accept4 recvmmsg sendmmsg sockaddr_un_set
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tests := \
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tst-accept4 \
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tst-sockopt \
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tst-cmsghdr \
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# tests
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tests-internal := \
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tst-sockaddr_un_set \
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# tests-internal
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tests-time64 := \
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tst-sockopt-time64 \
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# tests
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aux := sa_len
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include ../Rules
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CFLAGS-recv.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-recvfrom.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-sendto.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-recvmsg.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-sendmsg.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-send.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-connect.c += -fexceptions -fasynchronous-unwind-tables
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CFLAGS-accept.c += -fexceptions -fasynchronous-unwind-tables
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