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Author SHA1 Message Date
Corinna Vinschen 61e52c4d60 stdio: drop unnecessary calls to ORIENT 
Now that the low-level functions set and test stream orientation,
a few calls in API functions are redundant.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
 2023-11-20 20:59:47 +01:00
Corinna Vinschen 09119463a1 stdio: split byte- and wide-char-oriented low-level output functions 
Introduce function __swbufw_r and macros/inline-functions called
__swputc_r.  Call these functions/macros exclusively from wide-char
functions.

This allows to set and test the stream orientation correctly even if
output is only performed using byte-oriented macros from stdio.h.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
 2023-11-20 20:59:13 +01:00
Takashi Yano 3d94e07c49 newlib: libc: Fix crash on fprintf to a wide-oriented stream. 
Previously, fprintf() on a wide-oriented stream crashes or outputs
garbage. This is because a narrow char string which can be odd bytes
in length is cast into a wide char string which should be even
bytes in length in __sprint_r/__sfputs_r based on the __SWID flag.
As a result, if the length is odd bytes, the reading buffer runs over
the buffer length, which causes a crash. If the length is even bytes,
garbage is printed.

With this patch, any output to the stream which is set to different
orientation fails with error just like glibc. Note that it behaves
differently from other libc implementations such as BSD, musl and
Solaris.

Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
 2023-11-10 00:36:41 +09:00
Yaakov Selkowitz 9087163804 ansification: remove _DEFUN 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2018-01-17 11:47:26 -06:00
Yaakov Selkowitz 6783860a2e ansification: remove _AND 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2018-01-17 11:47:05 -06:00
Yaakov Selkowitz c7ef9668cf stdio: remove TRAD_SYNOPSIS 
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
 2017-12-01 03:41:51 -06:00
Yaakov Selkowitz 968738f9b1 Implement BSD/GNU unlocked stdio extensions. 
* libc/include/stdio.h (clearerr_unlocked, feof_unlocked,
ferror_unlocked, fflush_unlocked, fgetc_unlocked, fgets_unlocked,
fileno_unlocked, fputc_unlocked, fputs_unlocked, fread_unlocked,
fwrite_unlocked): Declare.
* libc/include/wchar.h (fgetwc_unlocked, fgetws_unlocked,
fputwc_unlocked, fputws_unlocked, getwc_unlocked, getwchar_unlocked,
putwc_unlocked, putwchar_unlocked): Declare.
* libc/stdio/Makefile.am (ELIX_4_SOURCES): Add clearerr_u.c,
feof_u.c, ferror_u.c, fflush_u.c, fgetc_u.c, fgets_u.c, fgetwc_u.c,
fgetws_u.c, fileno_u.c, fputc_u.c, fputs_u.c, fputwc_u.c, fputws_u.c,
fread_u.c, fwrite_u.c, getwc_u.c, getwchar_u.c, putwc_u.c, putwchar_u.c.
Add necessary dependencies.
* libc/stdio/Makefile.in: Regenerate.
* libc/stdio/clearerr.c: Document unlocked variant.
* libc/stdio/clearerr_u.c: New file.
* libc/stdio/feof.c: Document unlocked variant.
* libc/stdio/feof_u.c: New file.
* libc/stdio/ferror.c: Document unlocked variant.
* libc/stdio/ferror_u.c: New file.
* libc/stdio/fflush.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fflush_u.c: New file.
* libc/stdio/fgetc.c: Document unlocked variants.
* libc/stdio/fgetc_u.c: New file.
* libc/stdio/fgets.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fgets_u.c: New file.
* libc/stdio/fgetwc.c: Document unlocked variants.
(__fgetwc): Make non-static.
* libc/stdio/fgetwc_u.c: New file.
* libc/stdio/fgetws.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fgetws_u.c: New file.
* libc/stdio/fileno.c: Document unlocked variant.
* libc/stdio/fileno_u.c: New file.
* libc/stdio/fputc.c: Document unlocked variants.
* libc/stdio/fputc_u.c: New file.
* libc/stdio/fputs.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fputs_u.c: New file.
* libc/stdio/fputwc.c: Document unlocked variants.
(__fputwc): Make non-static.
* libc/stdio/fputwc_u.c: New file.
* libc/stdio/fputws.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fputws_u.c: New file.
* libc/stdio/fread.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fread_u.c: New file.
* libc/stdio/fwrite.c: Add __IMPL_UNLOCKED__ overrides.
Document unlocked variants.
* libc/stdio/fwrite_u.c: New file.
* libc/stdio/getwc_u.c: New file.
* libc/stdio/getwchar.c: Document unlocked variants.
* libc/stdio/getwchar_u.c: New file.
* libc/stdio/local.h: Define locking macros as empty ifdef
__IMPL_UNLOCKED__.
(__fgetwc, __fputwc): Declare.
* libc/stdio/putwc_u.c: New file.
* libc/stdio/putwchar.c: Document unlocked variants.
* libc/stdio/putwchar_u.c: New file.
 2014-12-18 14:55:21 +00:00
Joel Sherrill 380c9f6165 2013-11-26 Julio Gutierrez <jgutleyva@gmail.com> 
*libc/include/wchar.h: Add restrict keyword.
	*libc/stdio/fgetws.c (fgetws): ditto.
	*libc/stdio/fputws.c (fputws): ditto.
	*libc/stdio/fwprintf.c (fwprintf): ditto.
	*libc/stdio/fwscanf.c (fwscanf): ditto.
	*libc/stdio/swprintf.c (swprintf): ditto.
	*libc/stdio/swscanf.c (swscanf): ditto.
	*libc/stdio/vfwprintf.c (vfwprintf): ditto.
	*libc/stdio/vfwscanf.c (vfwscanf): ditto.
	*libc/stdio/vswprintf.c (vswprintf): ditto.
	*libc/stdio/vswscanf.c (vswscanf): ditto.
	*libc/stdio/vwprintf.c (vwprintf): ditto.
	*libc/stdio/vwscanf.c (vwscanf): ditto.
	*libc/stdio/wprintf.c (wprintf): ditto.
	*libc/stdio/wscanf.c (wscanf): ditto.
	*libc/stdlib/mbrlen.c (mbrlen): ditto.
	*libc/stdlib/mbrtowc.c (mbrtowc): ditto.
	*libc/stdlib/mbsnrtowcs.c (mbsnrtowcs): ditto.
	*libc/stdlib/mbsrtowcs.c (mbsrtowcs): ditto.
	*libc/stdlib/wcrtomb.c (wcrtomb): ditto.
	*libc/stdlib/wcsnrtombs.c (wcsnrtombs): ditto.
	*libc/stdlib/wcsrtombs.c (wcsrtombs): ditto.
	*libc/stdlib/wcstod.c (wcstod): ditto.
	*libc/stdlib/wcstol.c (wcstol): ditto.
	*libc/stdlib/wcstold.c (wcstold): ditto.
	*libc/stdlib/wcstoll.c (wcstoll): ditto.
	*libc/stdlib/wcstoul.c (wcstoul): ditto.
	*libc/stdlib/wcstoull.c (cstoull): ditto.
	*libc/string/wcpcpy.c (wcpcpy): ditto.
	*libc/string/wcpncpy.c (wcpncpy): ditto.
	*libc/string/wcscat.c (wcscat): ditto.
	*libc/string/wcscpy.c (wcscpy): ditto.
	*libc/string/wcsncat.c (wcsncat): ditto.
	*libc/string/wcsncpy.c (wcsncpy): ditto.
	*libc/string/wcsstr.c (wcsstr): ditto.
	*libc/string/wcstok.c (wcstok): ditto.
	*libc/string/wcsxfrm.c (wcsxfrm): ditto.
	*libc/string/wmemcpy.c (wmemcpy): ditto.
 2013-11-26 17:21:01 +00:00
Jeff Johnston b334e6660a 2013-04-29 Sebastian Huber <sebastian.huber@embedded-brains.de> 
* libc/stdio/local.h (CHECK_INIT): Evaluate argument only once.
	(CHECK_STD_INIT): Likewise.
	* libc/stdio/fgetc.c (fgetc): Use local variable for _REENT.
	* libc/stdio/fgetwc.c (fwgetc): Likewise.
	* libc/stdio/fgetws.c (fgetws): Likewise.
	* libc/stdio/fputc.c (fputc): Likewise.
	* libc/stdio/fputwc.c (fputwc): Likewise.
	* libc/stdio/fputws.c (fputws): Likewise.
	* libc/stdio/getc.c (getc): Likewise.
	* libc/stdio/getchar.c (_getchar_r): Likewise.
	* libc/stdio/putc.c (putc): Likewise.
	* libc/stdio/putchar.c (putchar): Likewise.
	* libc/stdio/scanf.c (scanf): Likewise.
	* libc/stdio/setvbuf.c (setvbuf): Likewise.
	* libc/stdio/ungetwc.c (ungetwc): Likewise.
	* libc/stdio/vfscanf.c (VFSCANF): Likewise.
	* libc/stdio/vfwscanf.c (VFWSCANF): Likewise.
	* libc/stdio/viprintf.c (viprintf): Likewise.
	* libc/stdio/viscanf.c (viscanf): Likewise.
	* libc/stdio/vprintf.c (vprintf): Likewise.
	* libc/stdio/vscanf.c (vscanf): Likewise.
	* libc/stdio/vwprintf.c (vwprintf): Likewise.
	* libc/stdio/vwscanf.c (vwscanf): Likewise.
	* libc/stdio/wscanf.c (wscanf): Likewise.
	* libc/stdlib/ecvtbuf.c (fcvtbuf): Likewise.
	(fcvtbuf): Likewise.
	(ecvtbuf): Likewise.
	(ecvtbuf): Likewise.
	* libc/stdlib/mblen.c (mblen): Likewise.
	* libc/stdlib/mbrlen.c (mbrlen): Likewise.
	* libc/stdlib/mbrtowc.c (mbrtowc): Likewise.
	* libc/stdlib/mbtowc.c (mbtowc): Likewise.
	* libc/stdlib/rand.c (srand): Likewise.
	(rand): Likewise.
	* libc/stdlib/wcrtomb.c (wcrtomb): Likewise.
	* libc/stdlib/wctob.c (wctob): Likewise.
	* libc/stdlib/wctomb.c (wctomb): Likewise.
	* libc/string/strtok.c (strtok): Likewise.
	* libc/time/asctime.c (asctime): Likewise.
	* libc/time/gmtime.c (gmtime): Likewise.
	* libc/time/lcltime.c (lcltime): Likewise.
 2013-04-29 21:06:23 +00:00
Corinna Vinschen 409c27f834 * acconfig.h (_FVWRITE_IN_STREAMIO): Undefine. 
* newlib.hin (_FVWRITE_IN_STREAMIO): Undefine.
	* configure.in (--disable-newlib-fvwrite-in-streamio): New option.
	* configure: Regenerated.
	* libc/stdio/fputs.c (_fputs_r): Use _FVWRITE_IN_STREAMIO to
	control __sfvwrite_r.  Add alternative implementation.
	* libc/stdio/fputws.c (_fputws_r): Ditto.
	* libc/stdio/fwrite.c (_fwrite_r): Ditto.
	* libc/stdio/puts.c (_puts_r): Ditto.
	* libc/stdio/vfprintf.c (__ssputs_r, __sfputs_r): New function.
	(_VFPRINTF_R): Use _FVWRITE_IN_STREAMIO to control vector buffer.
	(__SPRINT): Use _FVWRITE_IN_STREAMIO to control macro definition.
	* libc/stdio/vfwprintf.c (_VFWPRINTF_R): Use _FVWRITE_IN_STREAMIO
	to control vector buffer.
 2013-03-27 09:38:39 +00:00
Corinna Vinschen 4aa28d8ae2 * libc/stdio/local.h (_newlib_flockfile_start): New macro to 
secure stream related critical section against thread cancellation.
	(_newlib_flockfile_exit): Ditto.
	(_newlib_sfp_lock_end): Ditto.
	(_newlib_sfp_lock_start): Ditto for the list of streams.
	(_newlib_sfp_lock_exit): Ditto.
	(_newlib_sfp_lock_end): Ditto.
	Use aforementioned macros in place of _flockfile/_funlockfile
	and __sfp_lock_acquire/__sfp_lock_release throughout the code.
	* libc/stdio/fclose.c: Explicitely disable and re-enable thread
	cancellation.  Explain why.
	* libc/stdio/freopen.c: Ditto.
	* libc/stdio64/freopen64.c: Ditto.
 2012-05-30 08:58:42 +00:00
Jeff Johnston c43663737c 2008-12-12 Ralf Corsepius <ralf.corsepius@rtems.org> 
* libc/stdio/fputws.c: Fix documentation.
        * libc/stdio/getwchar.c: Ditto.
        * libc/stdio/putwchar.c: Ditto.
 2008-12-12 17:21:08 +00:00
Jeff Johnston 0751f22675 2008-12-10 Corinna Vinschen <corinna@vinschen.de> 
Implement basic wide char stdio functionality, based on FreeBSD.
        * libc/include/stdio.h (__SORD): Define.
        (__SWID): Define.
        * libc/include/wchar.h: Add declarations for new wide char functions.
        (getwc): Define as macro.
        (getwchar): Ditto.
        (putwc): Ditto.
        (putwchar): Ditto.
        * libc/include/sys/reent.h (struct __sFILE): Add _mbstate member.
        (struct __sFILE64): Ditto.
        * libc/stdio/Makefile.am (ELIX_4_SOURCES): Add fgetwc.c, fgetws.c,
        fputwc.c, fputws.c, fwide.c, getwc.c, getwchar.c, putwc.c, putwchar.c
        and ungetwc.c.
        (CHEWOUT_FILES): Add fgetwc.def, fgetws.def, fputwc.def, fputws.def,
        fwide.def, getwc.def, getwchar.def, putwc.def, putwchar.def and
        ungetwc.def.
        Add header dependency rules for the new files.
        * libc/stdio/Makefile.in: Regenerate.
        * libc/stdio/fgetwc.c: New file, implementing fgetwc and _fgetwc_r.
        * libc/stdio/fgetws.c: New file, implementing fgetws and _fgetws_r.
        * libc/stdio/findfp.c (std): Initialize FILE's _mbstate member.
        (__sfmoreglue): Ditto.
        * libc/stdio/fputs.c (_fputs_r): Set stream orientation.
        * libc/stdio/fputwc.c: New file, implementing fputwc and _fputwc_r.
        * libc/stdio/fputws.c: New file, implementing fputws and _fputws_r.
        * libc/stdio/fread.c (_fread_r): Set stream orientation.
        * libc/stdio/freopen.c (_freopen_r): Reset stream orientation.  Reset
        _mbstate.
        * libc/stdio/fseek.c (_fseek_r): Reset _mbstate.
        * libc/stdio/fwide.c: New file, implementing fwide and _fwide_r.
        * libc/stdio/fwrite.c (_fwrite_r): Set stream orientation.
        * libc/stdio/getwc.c: New file, implementing getwc and _getwc_r.
        * libc/stdio/getwchar.c: New file, implementing getwchar and
        _getwchar_r.
        * libc/stdio/local.h (ORIENT): New macro.
        * libc/stdio/puts.c (_puts_r): Set stream orientation.
        * libc/stdio/putwc.c: New file, implementing putwc and _putwc_r.
        * libc/stdio/putwchar.c: New file, implementing putwchar and
        _putwchar_r.
        * libc/stdio/refill.c (__srefill_r): Set stream orientation.
        * libc/stdio/stdio.tex: Add documentation for new functions.
        * libc/stdio/ungetc.c (_ungetc_r): Set stream orientation.
        * libc/stdio/ungetwc.c: New file, implementing ungetwc and _ungetwc_r.
        * libc/stdio/vfscanf.c (__SVFSCANF_R): Set stream orientation.
        * libc/stdio/wbuf.c (__swbuf_r): Ditto.
 2008-12-10 23:43:12 +00:00