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* Remove legacy configuration knobs from libio.Zack Weinberg2018-02-211-3/+0
| | | | | | | | | | | | | | | | | | | | This patch eliminates the "compatibility defines" _IO_UNIFIED_JUMPTABLES (always defined to 1, used in a number of #ifs which are therefore always false), _STDIO_USES_IOSTREAM (unused), __HAVE_COLUMN (unused), _IO_BE (replaced with __glibc_unlikely), and yet another redundant definition of EOF. Installed stripped libraries are unchanged by this patch. * libio/libio.h (_IO_UNIFIED_JUMPTABLES, _STDIO_USES_IOSTREAM) (__HAVE_COLUMN, _IO_BE): Don't define. (_IO_peekc_unlocked, _IO_getwc_unlocked, _IO_putwc_unlocked) (_IO_fwide_maybe_incompatible): Use __glibc_unlikely. * libio/libioP.h (EOF): Don't define. * libio/iofdopen.c, libio/iofopen.c, libio/iopopen.c * libio/iovdprintf.c, libio/oldiofdopen.c, libio/oldiofopen.c * libio/oldiopopen.c, debug/vdprintf_chk.c: Remove #if block testing _IO_UNIFIED_JUMPTABLES.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-011-1/+1
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2017-01-011-1/+1
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* libio: Implement vtable verification [BZ #20191]Florian Weimer2016-06-231-1/+1
| | | | | | | | | | | | | | | | | | | | This commit puts all libio vtables in a dedicated, read-only ELF section, so that they are consecutive in memory. Before any indirect jump, the vtable pointer is checked against the section boundaries, and the process is terminated if the vtable pointer does not fall into the special ELF section. To enable backwards compatibility, a special flag variable (_IO_accept_foreign_vtables), protected by the pointer guard, avoids process termination if libio stream object constructor functions have been called earlier. Such constructor functions are called by the GCC 2.95 libstdc++ library, and this mechanism ensures compatibility with old binaries. Existing callers inside glibc of these functions are adjusted to call the original functions, not the wrappers which enable vtable compatiblity. The compatibility mechanism is used to enable passing FILE * objects across a static dlopen boundary, too.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2016-01-041-1/+1
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* Update copyright dates with scripts/update-copyrights.Joseph Myers2015-01-021-1/+1
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* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
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* Update copyright notices with scripts/update-copyrights.Joseph Myers2013-01-021-1/+1
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* Remove use of INTDEF/INTUSE in libioAndreas Schwab2012-05-241-6/+5
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* Replace FSF snail mail address with URLs.Paul Eggert2012-02-091-3/+2
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* Remove undefined operationsAndreas Schwab2010-09-051-5/+5
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* * include/stdio.h (__asprintf_chk, __dprintf_chk, cvs/fedora-glibc-20080305T0857Ulrich Drepper2008-03-051-0/+69
__obstack_printf_chk): New prototypes. (__vasprintf_chk, __vdprintf_chk, __obstack_vprintf_chk): Likewise. Add libc_hidden_proto. * libio/obprintf.c (_IO_obstack_jumps): No longer static, add attribute_hidden. * libio/bits/stdio-ldbl.h (__asprintf_chk, __dprintf_chk, __obstack_printf_chk, __vasprintf_chk, __vdprintf_chk, __obstack_vprintf_chk): Add __LDBL_REDIR_DECL. * libio/bits/stdio2.h (__asprintf_chk, __dprintf_chk, __obstack_printf_chk, __vasprintf_chk, __vdprintf_chk, __obstack_vprintf_chk): New prototypes. (asprintf, __asprintf, dprintf, obstack_printf, vasprintf, vdprintf, obstack_vprintf): New inlines. * debug/dprintf_chk.c: New file. * debug/vdprintf_chk.c: New file. * debug/asprintf_chk.c: New file. * debug/vasprintf_chk.c: New file. * debug/obprintf_chk.c: New file. * debug/tst-chk1.c (do_test): Add asprintf and obstack_printf tests. * debug/Versions (__asprintf_chk, __dprintf_chk, __obstack_printf_chk, __vasprintf_chk, __vdprintf_chk, __obstack_vprintf_chk): Export @@GLIBC_2.8. * debug/Makefile: Build asprintf_chk, vasprintf_chk, dprintf_chk, vdprintf_chk and obprintf_chk, set CFLAGS for them. * sysdeps/ieee754/ldbl-opt/nldbl-compat.c (__nldbl___vasprintf_chk, __nldbl___vdprintf_chk, __nldbl___obstack_vprintf_chk): Add libc_hidden_proto. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h (__nldbl___vasprintf_chk, __nldbl___vdprintf_chk, __nldbl___obstack_vprintf_chk): New prototypes. * sysdeps/ieee754/ldbl-opt/Versions (__nldbl___asprintf_chk, __nldbl___vasprintf_chk, __nldbl___dprintf_chk, __nldbl___vdprintf_chk, __nldbl___obstack_printf_chk, __nldbl___obstack_vprintf_chk): Export @@GLIBC_2.8. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add asprintf_chk, vasprintf_chk, dprintf_chk, vdprintf_chk, obstack_printf_chk and obstack_vprintf_chk. * sysdeps/ieee754/ldbl-opt/nldbl-obstack_vprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-dprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-obstack_printf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-asprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vdprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vasprintf_chk.c: New file.