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2018-02-21Remove miscellaneous debris from libio.Zack Weinberg1-1/+1
This patch eliminates a number of #if 0 and #ifdef TODO blocks, macros that are never used, macros that provide portability to substrates that lack basic things like EINVAL and off_t, and other such debris. I preserved IO_DEBUG and CHECK_FILE, even though as far as I can tell IO_DEBUG is never defined and therefore CHECK_FILE never does anything, because it seems like we might actually want to turn it _on_. Installed stripped libraries and executables are unchanged, except, again, that the line number of an assertion changes (this time it's somewhere in fileops.c). * libio/libio.h (_IO_pos_BAD, _IO_pos_0, _IO_pos_adjust): Define here, unconditionally. * libio/iolibio.h (_IO_pos_BAD): Don't define here. * libio/libioP.h: Remove #if 0 blocks. (_IO_pos_BAD, _IO_pos_0, _IO_pos_adjust): Don't define here. (_IO_va_start, COERCE_FILE, MAYBE_SET_EINVAL): Don't define. (CHECK_FILE): Don't use MAYBE_SET_EINVAL or COERCE_FILE. Fix style. * libio/clearerr.c, libio/fputc.c, libio/getchar.c: Assume weak_alias is always defined. * libio/fileops.c, libio/genops.c, libio/oldfileops.c * libio/oldpclose.c, libio/pclose.c, libio/wfileops.c: Remove #if 0 and #ifdef TODO blocks. Assume text_set_element is always defined. * libio/iofdopen.c, libio/iogetdelim.c, libio/oldiofdopen.c Use __set_errno (EINVAL) instead of MAYBE_SET_EINVAL. * libio/tst-mmap-eofsync.c: Make #if 1 block unconditional.
2018-02-21Remove _IO_file_flags define.Zack Weinberg1-2/+2
This entirely mechanical (except for some indentation fixups) patch replaces all uses of _IO_file_flags with _flags and removes the #define. Installed stripped libraries and executables are unchanged by this patch. * libio/libio.h (_IO_file_flags): Remove macro. All uses changed to _flags.
2018-02-21Mechanically remove _IO_ name aliases for types and constants.Zack Weinberg1-14/+12
This patch mechanically removes all remaining uses, and the definitions, of the following libio name aliases: name replaced with ---- ------------- _IO_FILE FILE _IO_fpos_t __fpos_t _IO_fpos64_t __fpos64_t _IO_size_t size_t _IO_ssize_t ssize_t or __ssize_t _IO_off_t off_t _IO_off64_t off64_t _IO_pid_t pid_t _IO_uid_t uid_t _IO_wint_t wint_t _IO_va_list va_list or __gnuc_va_list _IO_BUFSIZ BUFSIZ _IO_cookie_io_functions_t cookie_io_functions_t __io_read_fn cookie_read_function_t __io_write_fn cookie_write_function_t __io_seek_fn cookie_seek_function_t __io_close_fn cookie_close_function_t I used __fpos_t and __fpos64_t instead of fpos_t and fpos64_t because the definitions of fpos_t and fpos64_t depend on the largefile mode. I used __ssize_t and __gnuc_va_list in a handful of headers where namespace cleanliness might be relevant even though they're internal-use-only. In all other cases, I used the public-namespace name. There are a tiny handful of places where I left a use of 'struct _IO_FILE' alone, because it was being used together with 'struct _IO_FILE_plus' or 'struct _IO_FILE_complete' in the same arithmetic expression. Because this patch was almost entirely done with search and replace, I may have introduced indentation botches. I did proofread the diff, but I may have missed something. The ChangeLog below calls out all of the places where this was not a pure search-and-replace change. Installed stripped libraries and executables are unchanged by this patch, except that some assertions in vfscanf.c change line numbers. * libio/libio.h (_IO_FILE): Delete; all uses changed to FILE. (_IO_fpos_t): Delete; all uses changed to __fpos_t. (_IO_fpos64_t): Delete; all uses changed to __fpos64_t. (_IO_size_t): Delete; all uses changed to size_t. (_IO_ssize_t): Delete; all uses changed to ssize_t or __ssize_t. (_IO_off_t): Delete; all uses changed to off_t. (_IO_off64_t): Delete; all uses changed to off64_t. (_IO_pid_t): Delete; all uses changed to pid_t. (_IO_uid_t): Delete; all uses changed to uid_t. (_IO_wint_t): Delete; all uses changed to wint_t. (_IO_va_list): Delete; all uses changed to va_list or __gnuc_va_list. (_IO_BUFSIZ): Delete; all uses changed to BUFSIZ. (_IO_cookie_io_functions_t): Delete; all uses changed to cookie_io_functions_t. (__io_read_fn): Delete; all uses changed to cookie_read_function_t. (__io_write_fn): Delete; all uses changed to cookie_write_function_t. (__io_seek_fn): Delete; all uses changed to cookie_seek_function_t. (__io_close_fn): Delete: all uses changed to cookie_close_function_t. * libio/iofopncook.c: Remove unnecessary forward declarations. * libio/iolibio.h: Correct outdated commentary. * malloc/malloc.c (__malloc_stats): Remove unnecessary casts. * stdio-common/fxprintf.c (__fxprintf_nocancel): Remove unnecessary casts. * stdio-common/getline.c: Use _IO_getdelim directly. Don't redefine ssize_t. * stdio-common/printf_fp.c, stdio_common/printf_fphex.c * stdio-common/printf_size.c: Don't redefine size_t or FILE. Remove outdated comments. * stdio-common/vfscanf.c: Don't redefine va_list.
2018-02-05Remove some unnecessary redefinitions of std symbols.Zack Weinberg1-6/+1
Two files in stdio-common were unnecessarily redefining some standard symbols as their _IO_ aliases. * stdio-common/vfprintf.c: Don't redefine FILE, va_list, or BUFSIZ. * stdio-common/tstgetln.c: Don't redefine ssize_t.
2018-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+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.
2017-11-02stdio-common: Use array_length and array_end macrosFlorian Weimer1-3/+3
2017-08-31stdio-common: Remove internal_function attributeFlorian Weimer1-2/+1
2017-06-29vfprintf: Reuse work_buffer in group_numberFlorian Weimer1-29/+38
2017-06-29vfprintf: Use struct scratch_buffer for positional arguments allocationFlorian Weimer1-40/+28
2017-06-29vfprintf: Reduce WORK_BUFFER_SIZE for wchar_t buildsFlorian Weimer1-1/+1
2017-06-07float128: Add strfromf128Gabriel F. T. Gomes1-2/+8
Add strfromf128 to stdlib when _Float128 support is enabled. * stdio-common/printf-parsemb.c (__parse_one_specmb): Initialize spec->info.is_binary128 to zero. * stdio-common/printf.h (printf_info): Add new member is_binary128 to indicate that the number being converted to string is compatible with the IEC 60559 binary128 format. * stdio-common/printf_fp.c (__printf_fp_l): Add code to deal with _Float128 numbers. * stdio-common/printf_fphex.c: Include ieee754_float128.h and ldbl-128/printf_fphex_macros.h (__printf_fphex): Add code to deal with _Float128 numbers. * stdio-common/printf_size.c (__printf_size): Likewise. * stdio-common/vfprintf.c (process_arg): Initialize member info.is_binary128 to zero. * stdlib/fpioconst.h (FLT128_MAX_10_EXP_LOG): New macro. * stdlib/stdlib.h: Include bits/floatn.h for _Float128 support. (strfromf128): New declaration. * stdlib/strfrom-skeleton.c (STRFROM): Set member info.is_binary128 to one. * sysdeps/ieee754/float128/Makefile: Add strfromf128. * sysdeps/ieee754/float128/Versions: Likewise. * sysdeps/ieee754/float128/strfromf128.c: New file.
2017-05-08vfprintf.c: Refactor magic number 32 into EXTSIZ.Carlos O'Donell1-25/+27
The magic number 32 is used everywhere as extra size to use when doing certain operations. This commit refactors that into a macro so you can change this value if you're debugging something in a local build.
2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2016-09-02vfprintf: Avoid creating a VLA which complicates stack managementFlorian Weimer1-1/+1
2016-06-23libio: Implement vtable verification [BZ #20191]Florian Weimer1-2/+2
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.
2016-04-25vfprintf: Fix memory with large width and precision [BZ #19931]Florian Weimer1-0/+5
Free a previously allocated work buffer if it is not large enough.
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2015-10-17vfprintf: Rewrite printf_positional to use struct scratch_bufferFlorian Weimer1-40/+10
2015-09-16Fix BZ #18872 -- memory leak in printf_positional.Paul Pluzhnikov1-0/+4
2015-09-08Move bits/libc-lock.h and bits/libc-lockP.h out of bits/ (bug 14912).Joseph Myers1-1/+1
It was noted in <https://sourceware.org/ml/libc-alpha/2012-09/msg00305.html> that the bits/*.h naming scheme should only be used for installed headers. This patch renames bits/libc-lock.h to plain libc-lock.h and bits/libc-lockP.h to plain libc-lockP.h to follow that convention. Note that I don't know where libc-lockP.h comes from for Hurd (the Hurd libc-lock.h includes libc-lockP.h, but the only libc-lockP.h in the glibc source tree is for NPTL) - some unmerged patch? - but I updated the #include in the Hurd libc-lock.h anyway. Tested for x86_64 (testsuite, and that installed stripped shared libraries are unchanged by the patch). [BZ #14912] * bits/libc-lock.h: Move to ... * sysdeps/generic/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/mach/hurd/bits/libc-lock.h: Move to ... * sysdeps/mach/hurd/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. [_LIBC]: Include <libc-lockP.h> instead of <bits/libc-lockP.h>. * sysdeps/mach/bits/libc-lock.h: Move to ... * sysdeps/mach/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/nptl/bits/libc-lock.h: Move to ... * sysdeps/nptl/libc-lock.h: ...here. (_BITS_LIBC_LOCK_H): Rename macro to _LIBC_LOCK_H. * sysdeps/nptl/bits/libc-lockP.h: Move to ... * sysdeps/nptl/libc-lockP.h: ...here. (_BITS_LIBC_LOCKP_H): Rename macro to _LIBC_LOCKP_H. * crypt/crypt_util.c: Include <libc-lock.h> instead of <bits/libc-lock.h>. * dirent/scandir-tail.c: Likewise. * dlfcn/dlerror.c: Likewise. * elf/dl-close.c: Likewise. * elf/dl-iteratephdr.c: Likewise. * elf/dl-lookup.c: Likewise. * elf/dl-open.c: Likewise. * elf/dl-support.c: Likewise. * elf/dl-writev.h: Likewise. * elf/rtld.c: Likewise. * grp/fgetgrent.c: Likewise. * gshadow/fgetsgent.c: Likewise. * gshadow/sgetsgent.c: Likewise. * iconv/gconv_conf.c: Likewise. * iconv/gconv_db.c: Likewise. * iconv/gconv_dl.c: Likewise. * iconv/gconv_int.h: Likewise. * iconv/gconv_trans.c: Likewise. * include/link.h: Likewise. * inet/getnameinfo.c: Likewise. * inet/getnetgrent.c: Likewise. * inet/getnetgrent_r.c: Likewise. * intl/bindtextdom.c: Likewise. * intl/dcigettext.c: Likewise. * intl/finddomain.c: Likewise. * intl/gettextP.h: Likewise. * intl/loadmsgcat.c: Likewise. * intl/localealias.c: Likewise. * intl/textdomain.c: Likewise. * libidn/idn-stub.c: Likewise. * libio/libioP.h: Likewise. * locale/duplocale.c: Likewise. * locale/freelocale.c: Likewise. * locale/newlocale.c: Likewise. * locale/setlocale.c: Likewise. * login/getutent_r.c: Likewise. * login/getutid_r.c: Likewise. * login/getutline_r.c: Likewise. * login/utmp-private.h: Likewise. * login/utmpname.c: Likewise. * malloc/mtrace.c: Likewise. * misc/efgcvt.c: Likewise. * misc/error.c: Likewise. * misc/fstab.c: Likewise. * misc/getpass.c: Likewise. * misc/mntent.c: Likewise. * misc/syslog.c: Likewise. * nis/nis_call.c: Likewise. * nis/nis_callback.c: Likewise. * nis/nss-default.c: Likewise. * nis/nss_compat/compat-grp.c: Likewise. * nis/nss_compat/compat-initgroups.c: Likewise. * nis/nss_compat/compat-pwd.c: Likewise. * nis/nss_compat/compat-spwd.c: Likewise. * nis/nss_nis/nis-alias.c: Likewise. * nis/nss_nis/nis-ethers.c: Likewise. * nis/nss_nis/nis-grp.c: Likewise. * nis/nss_nis/nis-hosts.c: Likewise. * nis/nss_nis/nis-network.c: Likewise. * nis/nss_nis/nis-proto.c: Likewise. * nis/nss_nis/nis-pwd.c: Likewise. * nis/nss_nis/nis-rpc.c: Likewise. * nis/nss_nis/nis-service.c: Likewise. * nis/nss_nis/nis-spwd.c: Likewise. * nis/nss_nisplus/nisplus-alias.c: Likewise. * nis/nss_nisplus/nisplus-ethers.c: Likewise. * nis/nss_nisplus/nisplus-grp.c: Likewise. * nis/nss_nisplus/nisplus-hosts.c: Likewise. * nis/nss_nisplus/nisplus-initgroups.c: Likewise. * nis/nss_nisplus/nisplus-network.c: Likewise. * nis/nss_nisplus/nisplus-proto.c: Likewise. * nis/nss_nisplus/nisplus-pwd.c: Likewise. * nis/nss_nisplus/nisplus-rpc.c: Likewise. * nis/nss_nisplus/nisplus-service.c: Likewise. * nis/nss_nisplus/nisplus-spwd.c: Likewise. * nis/ypclnt.c: Likewise. * nptl/libc_pthread_init.c: Likewise. * nss/getXXbyYY.c: Likewise. * nss/getXXent.c: Likewise. * nss/getXXent_r.c: Likewise. * nss/nss_db/db-XXX.c: Likewise. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_db/nss_db.h: Likewise. * nss/nss_files/files-XXX.c: Likewise. * nss/nss_files/files-alias.c: Likewise. * nss/nsswitch.c: Likewise. * posix/regex_internal.h: Likewise. * posix/wordexp.c: Likewise. * pwd/fgetpwent.c: Likewise. * resolv/res_hconf.c: Likewise. * resolv/res_libc.c: Likewise. * shadow/fgetspent.c: Likewise. * shadow/lckpwdf.c: Likewise. * shadow/sgetspent.c: Likewise. * socket/opensock.c: Likewise. * stdio-common/reg-modifier.c: Likewise. * stdio-common/reg-printf.c: Likewise. * stdio-common/reg-type.c: Likewise. * stdio-common/vfprintf.c: Likewise. * stdio-common/vfscanf.c: Likewise. * stdlib/abort.c: Likewise. * stdlib/cxa_atexit.c: Likewise. * stdlib/fmtmsg.c: Likewise. * stdlib/random.c: Likewise. * stdlib/setenv.c: Likewise. * string/strsignal.c: Likewise. * sunrpc/auth_none.c: Likewise. * sunrpc/bindrsvprt.c: Likewise. * sunrpc/create_xid.c: Likewise. * sunrpc/key_call.c: Likewise. * sunrpc/rpc_thread.c: Likewise. * sysdeps/arm/backtrace.c: Likewise. * sysdeps/generic/ldsodefs.h: Likewise. * sysdeps/generic/stdio-lock.h: Likewise. * sysdeps/generic/unwind-dw2-fde.c: Likewise. * sysdeps/i386/backtrace.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-compat.c: Likewise. * sysdeps/m68k/backtrace.c: Likewise. * sysdeps/mach/hurd/cthreads.c: Likewise. * sysdeps/mach/hurd/dirstream.h: Likewise. * sysdeps/mach/hurd/malloc-machine.h: Likewise. * sysdeps/nptl/malloc-machine.h: Likewise. * sysdeps/nptl/stdio-lock.h: Likewise. * sysdeps/posix/dirstream.h: Likewise. * sysdeps/posix/getaddrinfo.c: Likewise. * sysdeps/posix/system.c: Likewise. * sysdeps/pthread/aio_suspend.c: Likewise. * sysdeps/s390/s390-32/backtrace.c: Likewise. * sysdeps/s390/s390-64/backtrace.c: Likewise. * sysdeps/unix/sysv/linux/check_pf.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutent_r.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutid_r.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/getutline_r.c: Likewise. * sysdeps/unix/sysv/linux/shm-directory.c: Likewise. * sysdeps/unix/sysv/linux/system.c: Likewise. * sysdeps/x86_64/backtrace.c: Likewise. * time/alt_digit.c: Likewise. * time/era.c: Likewise. * time/tzset.c: Likewise. * wcsmbs/wcsmbsload.c: Likewise. * nptl/tst-initializers1.c (do_test): Refer to <libc-lock.h> instead of <bits/libc-lock.h> in comment.
2015-05-21vfprintf: Remove label name switching for the jump tableFlorian Weimer1-17/+4
Different labels are no longer needed because the tables are now in separate functions.
2015-05-21vfprintf: Introduce printf_positional functionFlorian Weimer1-347/+369
This splits a considerable chunk of code from the main vfprintf function. This will make it easier to remove the use of extend_alloca from the positional argument handling code.
2015-05-21vfprintf: Move jump table definition and the macros out of functionFlorian Weimer1-65/+64
The second jump table will be moved to a separate function in the next commit.
2015-03-06vfprintf: Define WORK_BUFFER_SIZEFlorian Weimer1-11/+11
This constant will allow us to refer to the number of elements in work_buffer across a function call boundary.
2015-03-06vfprintf: Introduce JUMP_TABLE_BASE_LABELFlorian Weimer1-3/+6
This makes the offset handling more explicit and avoids cross-references between the jump tables.
2015-03-06vfprintf: Introduce THOUSANDS_SEP_TFlorian Weimer1-18/+5
This avoids preprocessor conditionals in function declarations.
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2014-12-15CVE-2012-3406: Stack overflow in vfprintf [BZ #16617]Jeff Law1-2/+38
A larger number of format specifiers coudld cause a stack overflow, potentially allowing to bypass _FORTIFY_SOURCE format string protection.
2014-05-01Correctly handle %p in wprintf (BZ #16890)Andreas Schwab1-1/+2
2014-03-17Revert "Fix _IO_JUMPS_OFFSET -Wundef warnings"Will Newton1-1/+1
This reverts commit f7efd7c3dfffa3c417e9d3c4cb19d9954a3b1421.
2014-03-17Fix _IO_JUMPS_OFFSET -Wundef warningsWill Newton1-1/+1
ChangeLog: 2014-03-17 Will Newton <will.newton@linaro.org> * libio/genops.c: Check whether _IO_JUMPS_OFFSET is defined with #ifdef rather than #if. * libio/libioP.h: Likewise. * stdio-common/vfprintf.c: Likewise.
2014-01-07Fix integer overflow in vfwprintf. Fixes bug 14286.Ondřej Bílka1-1/+7
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae1-1/+1
2013-10-11Fix fwrite() reading beyond end of buffer in error pathEric Biggers1-6/+6
Partially revert commits 2b766585f9b4ffabeef2f36200c275976b93f2c7 and de2fd463b1c0310d75084b6d774fb974075a4ad9, which were intended to fix BZ#11741 but caused another, likely worse bug, namely that fwrite() and fputs() could, in an error path, read data beyond the end of the specified buffer, and potentially even write this data to the file. Fix BZ#11741 properly by checking the return value from _IO_padn() in stdio-common/vfprintf.c.
2013-06-07Avoid use of "register" as optimization hint.Joseph Myers1-4/+4
2013-03-05Replace __builtin_expect(..., 0) with __glibc_unlikely().Paul Pluzhnikov1-19/+19
2013-03-05 * stdio-common/vfprintf.c (vfprintf): Check malloc return; don'tPaul Pluzhnikov1-4/+13
call free(NULL).
2013-02-13Remove __ptrvalue, __bounded and __unbounded.Joseph Myers1-2/+2
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers1-1/+1
2012-11-16printf should return negative value on errorSiddhesh Poyarekar1-4/+24
[BZ #11741] Fixed bug where printf and family may return a spurious success when printing padded formats.
2012-09-282012-09-28 Andreas Schwab <schwab@linux-m68k.org>Jeff Law1-36/+3
[BZ #6530] * stdio-common/vfprintf.c (process_string_arg): Revert 2000-07-22 change. 2011-09-28 Jonathan Nieder <jrnieder@gmail.com> * stdio-common/Makefile (tst-sprintf-ENV): Set environment for testcase. * stdio-common/tst-sprintf.c: Include <locale.h> (main): Test sprintf's handling of incomplete multibyte characters.
2012-05-24Remove use of INTDEF/INTUSE in libioAndreas Schwab1-15/+16
2012-04-02Tighten up vfprintf width, precision, and total length overflow handling.David S. Miller1-19/+58
With help from Paul Eggert, Carlos O'Donell, and Roland McGrath. * stdio-common/printf-parse.h (read_int): Change return type to 'int', return -1 on INT_MAX overflow. * stdio-common/vfprintf.c (vfprintf): Validate width and precision against overflow of INT_MAX. Set errno to EOVERFLOW when 'done' overflows INT_MAX. Check for overflow of in-format-string precision values properly. Use EOVERFLOW rather than ERANGE throughout. Use SIZE_MAX not INT_MAX for integer overflow test. * stdio-common/printf-parsemb.c: If read_int signals an overflow, skip the construct in the format string but do not record anything. * stdio-common/bug22.c: Adjust to test both width/prevision INT_MAX overflow as well as total length INT_MAX overflow. Check explicitly for proper errno values.
2012-03-20Move stdio-common/_itoa.h to sysdeps/genericH.J. Lu1-2/+2
2012-03-06Formatting fixesUlrich Drepper1-13/+13
2012-03-052012-03-02 Kees Cook <keescook@chromium.org>Kees Cook1-3/+7
* stdio-common/vfprintf.c (vfprintf): add missing errno settings.
2012-03-052012-03-02 Kees Cook <keescook@chromium.org>Kees Cook1-9/+38
[BZ #13656] * stdio-common/vfprintf.c (vfprintf): Check for nargs overflow and possibly allocate from heap instead of stack. * stdio-common/bug-vfprintf-nargs.c: New file. * stdio-common/Makefile (tests): Add nargs overflow test.
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert1-3/+2
2011-12-17Fix extension of array in extended printf format handlingUlrich Drepper1-7/+6
2011-05-21Set stream errors in more casesUlrich Drepper1-0/+1
Also avoid unnecessarily setting errno when testing for TTY.
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