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Add checking versions of poll and ppoll
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14
ChangeLog
14
ChangeLog
@ -1,5 +1,19 @@
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2012-01-08 Ulrich Drepper <drepper@gmail.com>
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* debug/Makefile (routines): Add poll_chk and ppoll_chk.
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* debug/Versions: Export __pool_chk and __ppoll_chk from libc for
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GLIBC_2.16.
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* debug/tst-chk1.c: Add poll and ppoll tests.
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* io/sys/poll.h: Include bits/poll2.h for _FORTIFY_SOURCE.
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* include/sys/poll.h: Add hidden proto for ppoll.
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* sysdeps/unix/sysv/linux/ppoll.c: Add hidden def.
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* sysdeps/mach/hurd/ppoll.c: Likewise.
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* io/ppoll.c: Likewise.
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* debug/poll_chk.c: New file.
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* debug/ppoll_chk.c: New file.
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* include/bits/poll2.h: New file.
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* io/bits/poll2.h: New file.
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[BZ #1350]
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* math/complex.h (CMPLX, CMPLXF, CMPLXL): Define.
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3
NEWS
3
NEWS
@ -36,6 +36,9 @@ Version 2.16
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* Support for the IA-64 is removed and could live in ports.
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* Remove support for anything but ELF binary format
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* Checking versions of poll, ppoll added.
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Implemented by Ulrich Drepper.
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Version 2.15
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@ -44,7 +44,7 @@ routines = backtrace backtracesyms backtracesymsfd noophooks \
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wcstombs_chk asprintf_chk vasprintf_chk dprintf_chk \
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vdprintf_chk obprintf_chk \
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longjmp_chk ____longjmp_chk \
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fdelt_chk \
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fdelt_chk poll_chk ppoll_chk \
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stack_chk_fail fortify_fail \
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$(static-only-routines)
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static-only-routines := warning-nop stack_chk_fail_local
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@ -52,6 +52,9 @@ libc {
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GLIBC_2.15 {
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__fdelt_chk; __fdelt_warn;
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}
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GLIBC_2.16 {
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__poll_chk; __ppoll_chk;
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}
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GLIBC_PRIVATE {
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__fortify_fail;
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}
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29
debug/poll_chk.c
Normal file
29
debug/poll_chk.c
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@ -0,0 +1,29 @@
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/* Copyright (C) 2012 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/poll.h>
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int
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__poll_chk (struct pollfd *fds, nfds_t nfds, int timeout, __SIZE_TYPE__ fdslen)
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{
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if (fdslen / sizeof (*fds) < nfds)
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__chk_fail ();
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return __poll (fds, nfds, timeout);
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}
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30
debug/ppoll_chk.c
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30
debug/ppoll_chk.c
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@ -0,0 +1,30 @@
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/* Copyright (C) 2012 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sys/poll.h>
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int
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__ppoll_chk (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
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const __sigset_t *ss, __SIZE_TYPE__ fdslen)
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{
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if (fdslen / sizeof (*fds) < nfds)
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__chk_fail ();
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return ppoll (fds, nfds, timeout, ss);
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}
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@ -1,4 +1,4 @@
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/* Copyright (C) 2004,2005,2006,2007,2008,2011 Free Software Foundation, Inc.
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/* Copyright (C) 2004-2008,2011,2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
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@ -29,6 +29,7 @@
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <sys/poll.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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@ -1476,5 +1477,21 @@ do_test (void)
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CHK_FAIL_END
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#endif
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struct pollfd fds[1];
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fds[0].fd = STDOUT_FILENO;
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fds[0].events = POLLOUT;
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poll (fds, 1, 0);
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#if __USE_FORTIFY_LEVEL >= 1
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CHK_FAIL_START
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poll (fds, 2, 0);
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CHK_FAIL_END
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#endif
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ppoll (fds, 1, NULL, NULL);
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#if __USE_FORTIFY_LEVEL >= 1
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CHK_FAIL_START
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ppoll (fds, 2, NULL, NULL);
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CHK_FAIL_END
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#endif
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return ret;
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}
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1
include/bits/poll2.h
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1
include/bits/poll2.h
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@ -0,0 +1 @@
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#include "../../io/bits/poll2.h"
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@ -4,5 +4,6 @@
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extern int __poll (struct pollfd *__fds, unsigned long int __nfds,
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int __timeout);
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libc_hidden_proto (__poll)
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libc_hidden_proto (ppoll)
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#endif
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78
io/bits/poll2.h
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78
io/bits/poll2.h
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@ -0,0 +1,78 @@
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/* Checking macros for poll functions.
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Copyright (C) 2012 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_POLL_H
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# error "Never include <bits/poll2.h> directly; use <sys/poll.h> instead."
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#endif
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extern int __REDIRECT (__poll_alias, (struct pollfd *__fds, nfds_t __nfds,
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int __timeout), poll);
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extern int __poll_chk (struct pollfd *__fds, nfds_t __nfds, int __timeout,
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__SIZE_TYPE__ __fdslen);
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extern int __REDIRECT (__poll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
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int __timeout, __SIZE_TYPE__ __fdslen),
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__poll_chk)
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__warnattr ("poll called with fds buffer too small file nfds entries");
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__extern_always_inline int
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poll (struct pollfd *__fds, nfds_t __nfds, int __timeout)
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{
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if (__bos (__fds) != (__SIZE_TYPE__) -1)
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{
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if (! __builtin_constant_p (__nfds))
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return __poll_chk (__fds, __nfds, __timeout, __bos (__fds));
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else if (__bos (__fds) / sizeof (*__fds) < __nfds)
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return __poll_chk_warn (__fds, __nfds, __timeout, __bos (__fds));
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}
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return __poll_alias (__fds, __nfds, __timeout);
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}
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#ifdef __USE_GNU
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extern int __REDIRECT (__ppoll_alias, (struct pollfd *__fds, nfds_t __nfds,
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const struct timespec *__timeout,
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const __sigset_t *__ss), ppoll);
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extern int __ppoll_chk (struct pollfd *__fds, nfds_t __nfds,
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const struct timespec *__timeout,
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const __sigset_t *__ss, __SIZE_TYPE__ __fdslen);
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extern int __REDIRECT (__ppoll_chk_warn, (struct pollfd *__fds, nfds_t __nfds,
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const struct timespec *__timeout,
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const __sigset_t *__ss,
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__SIZE_TYPE__ __fdslen),
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__ppoll_chk)
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__warnattr ("ppoll called with fds buffer too small file nfds entries");
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__extern_always_inline int
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ppoll (struct pollfd *__fds, nfds_t __nfds, const struct timespec *__timeout,
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const __sigset_t *__ss)
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{
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if (__bos (__fds) != (__SIZE_TYPE__) -1)
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{
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if (! __builtin_constant_p (__nfds))
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return __ppoll_chk (__fds, __nfds, __timeout, __ss, __bos (__fds));
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else if (__bos (__fds) / sizeof (*__fds) < __nfds)
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return __ppoll_chk_warn (__fds, __nfds, __timeout, __ss,
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__bos (__fds));
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}
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return __ppoll_alias (__fds, __nfds, __timeout, __ss);
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}
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#endif
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@ -1,4 +1,4 @@
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/* Copyright (C) 2006 Free Software Foundation, Inc.
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/* Copyright (C) 2006, 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
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@ -73,4 +73,5 @@ ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
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#ifndef ppoll
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/* __poll handles cancellation. */
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LIBC_CANCEL_HANDLED ();
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libc_hidden_def (ppoll);
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#endif
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@ -71,4 +71,10 @@ extern int ppoll (struct pollfd *__fds, nfds_t __nfds,
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__END_DECLS
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/* Define some inlines helping to catch common problems. */
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#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
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# include <bits/poll2.h>
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#endif
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#endif /* sys/poll.h */
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/* poll file descriptors. Hurd version.
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Copyright (C) 2006 Free Software Foundation, Inc.
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Copyright (C) 2006, 2012 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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@ -28,3 +28,4 @@ ppoll (struct pollfd *fds, nfds_t nfds,
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{
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return _hurd_select (nfds, fds, NULL, NULL, NULL, timeout, sigmask);
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}
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libc_hidden_def (ppoll)
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@ -1,4 +1,4 @@
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/* Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2006, 2007, 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
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@ -67,6 +67,7 @@ ppoll (struct pollfd *fds, nfds_t nfds, const struct timespec *timeout,
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return result;
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}
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libc_hidden_def (ppoll)
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# ifndef __ASSUME_PPOLL
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# define ppoll static __generic_ppoll
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