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https://sourceware.org/git/glibc.git
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b0e805fa0d
The fix for BZ #17273 introduced a single byte of memory corruption when the line is entirely blank. It would walk back past the start of the buffer if the heap happened to be 0x20 or 0x09 and then write a NUL byte. buffer = '\n'; end_ptr = buffer; while (end_ptr[-1] == ' ' || end_ptr[-1] == '\t') end_ptr--; *end_ptr = '\0'; Fix that and rework the tests. Adding the testcase for BZ #17273 to the existing \040 parser does not really make sense as it's unrelated, and leads to confusing behavior: it implicitly relies on the new entry being longer than the previous entry (since it just rewinds the FILE*). Split it out into its own dedicated testcase instead.
113 lines
4.0 KiB
Makefile
113 lines
4.0 KiB
Makefile
# Copyright (C) 1991-2015 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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#
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# Sub-makefile for misc portion of the library.
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#
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subdir := misc
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include ../Makeconfig
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headers := sys/uio.h bits/uio.h sys/ioctl.h bits/ioctls.h bits/ioctl-types.h \
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sys/ptrace.h sys/file.h sys/dir.h sys/cdefs.h \
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ar.h a.out.h libgen.h stab.h bits/stab.def sgtty.h \
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ttyent.h paths.h sys/reboot.h \
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sys/mman.h sys/param.h bits/param.h \
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fstab.h mntent.h search.h err.h error.h \
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sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h \
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sys/select.h ustat.h sys/ustat.h bits/ustat.h sys/sysinfo.h \
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regexp.h bits/select.h bits/mman.h sys/xattr.h \
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syslog.h sys/syslog.h \
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bits/syslog.h bits/syslog-ldbl.h bits/syslog-path.h bits/error.h \
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bits/select2.h bits/hwcap.h sys/auxv.h
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routines := brk sbrk sstk ioctl \
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readv writev preadv preadv64 pwritev pwritev64 \
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setreuid setregid \
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seteuid setegid \
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getpagesize \
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getdtsz \
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gethostname sethostname getdomain setdomain \
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select pselect \
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acct chroot fsync sync fdatasync syncfs reboot \
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gethostid sethostid \
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revoke vhangup \
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swapon swapoff mktemp mkstemp mkstemp64 mkdtemp \
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mkostemp mkostemp64 mkstemps mkstemps64 mkostemps mkostemps64 \
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ualarm usleep \
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gtty stty \
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ptrace \
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fstab mntent mntent_r \
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utimes lutimes futimes futimesat \
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truncate ftruncate truncate64 ftruncate64 \
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chflags fchflags \
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insremque getttyent getusershell getpass ttyslot \
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syslog syscall daemon \
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mmap mmap64 munmap mprotect msync madvise mincore remap_file_pages\
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mlock munlock mlockall munlockall \
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efgcvt efgcvt_r qefgcvt qefgcvt_r \
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hsearch hsearch_r tsearch lsearch \
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err error ustat \
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getsysstats dirname regexp \
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getloadavg getclktck \
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fgetxattr flistxattr fremovexattr fsetxattr getxattr \
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listxattr lgetxattr llistxattr lremovexattr lsetxattr \
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removexattr setxattr getauxval ifunc-impl-list
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generated += tst-error1.mtrace tst-error1-mem.out
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aux := init-misc
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install-lib := libg.a
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gpl2lgpl := error.c error.h
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tests := tst-dirname tst-tsearch tst-fdset tst-efgcvt tst-mntent tst-hsearch \
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tst-error1 tst-pselect tst-insremque tst-mntent2 bug-hsearch1 \
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tst-mntent-blank-corrupt tst-mntent-blank-passno
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ifeq ($(run-built-tests),yes)
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tests-special += $(objpfx)tst-error1-mem.out
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endif
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CFLAGS-select.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-tsearch.c = $(uses-callbacks)
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CFLAGS-lsearch.c = $(uses-callbacks)
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CFLAGS-pselect.c = -fexceptions
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CFLAGS-readv.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-writev.c = -fexceptions -fasynchronous-unwind-tables
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CFLAGS-usleep.c = -fexceptions
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CFLAGS-syslog.c = -fexceptions
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CFLAGS-error.c = -fexceptions
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CFLAGS-getpass.c = -fexceptions
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CFLAGS-mkstemp.c = -fexceptions
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CFLAGS-mkstemp64.c = -fexceptions
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CFLAGS-getsysstats.c = -fexceptions
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CFLAGS-getusershell.c = -fexceptions
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CFLAGS-err.c = -fexceptions
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CFLAGS-tst-tsearch.c = $(stack-align-test-flags)
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include ../Rules
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$(objpfx)libg.a: $(dep-dummy-lib); $(make-dummy-lib)
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$(objpfx)tst-tsearch: $(libm)
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tst-error1-ENV = MALLOC_TRACE=$(objpfx)tst-error1.mtrace
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tst-error1-ARGS = $(objpfx)tst-error1.out
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$(objpfx)tst-error1-mem.out: $(objpfx)tst-error1.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-error1.mtrace > $@; \
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$(evaluate-test)
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