2006-12-13  Ulrich Drepper  <drepper@redhat.com>
	[BZ #2337]
	* libio/Makefile (tests): Add tst-setvbuf1.
	* libio/tst-setvbuf1.c: New file.

2006-12-08  Jakub Jelinek  <jakub@redhat.com>

	[BZ #2337]
	* libio/genops.c (__uflow): Fix a typo.
	* libio/wfiledoalloc.c (_IO_wfile_doallocate): Don't stat
	nor set _IO_LINE_BUF bit here.  Size the wide buffer based on
	the narrow buffer size.

2006-11-24  Jakub Jelinek  <jakub@redhat.com>

	[BZ #2337]
	* libio/libio.h (_IO_FLAGS2_USER_WBUF): Define.
	* libio/wgenops.c (_IO_wsetb, _IO_wdefault_finish): Test and set
	_IO_FLAGS2_USER_WBUF bit in _flags2 instead of _IO_USER_BUF bit
	in _flags.
	* libio/wstrops.c (_IO_wstr_overflow, enlarge_userbuf,
	_IO_wstr_finish): Likewise.
	* libio/wmemstream.c (open_wmemstream): Likewise.
	* libio/fileops.c (_IO_new_file_close_it): Call _IO_set[bgp]
	even for wide streams.
This commit is contained in:
Ulrich Drepper 2006-12-13 23:17:54 +00:00
parent f72386ad7c
commit 1e88bd0f1b
10 changed files with 91 additions and 40 deletions

View File

@ -1,3 +1,30 @@
2006-12-13 Ulrich Drepper <drepper@redhat.com>
[BZ #2337]
* libio/Makefile (tests): Add tst-setvbuf1.
* libio/tst-setvbuf1.c: New file.
2006-12-08 Jakub Jelinek <jakub@redhat.com>
[BZ #2337]
* libio/genops.c (__uflow): Fix a typo.
* libio/wfiledoalloc.c (_IO_wfile_doallocate): Don't stat
nor set _IO_LINE_BUF bit here. Size the wide buffer based on
the narrow buffer size.
2006-11-24 Jakub Jelinek <jakub@redhat.com>
[BZ #2337]
* libio/libio.h (_IO_FLAGS2_USER_WBUF): Define.
* libio/wgenops.c (_IO_wsetb, _IO_wdefault_finish): Test and set
_IO_FLAGS2_USER_WBUF bit in _flags2 instead of _IO_USER_BUF bit
in _flags.
* libio/wstrops.c (_IO_wstr_overflow, enlarge_userbuf,
_IO_wstr_finish): Likewise.
* libio/wmemstream.c (open_wmemstream): Likewise.
* libio/fileops.c (_IO_new_file_close_it): Call _IO_set[bgp]
even for wide streams.
2006-12-13 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S: Include

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@ -57,7 +57,8 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \
bug-ungetc2 bug-ftell bug-ungetc3 bug-ungetc4 tst-fopenloc2 \
tst-memstream1 tst-memstream2 \
tst-wmemstream1 tst-wmemstream2 \
bug-memstream1 bug-wmemstream1
bug-memstream1 bug-wmemstream1 \
tst-setvbuf1
test-srcs = test-freopen
all: # Make this the default target; it will be defined in Rules.

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@ -174,14 +174,8 @@ _IO_new_file_close_it (fp)
close_status = _IO_SYSCLOSE (fp);
/* Free buffer. */
if (fp->_mode <= 0)
{
INTUSE(_IO_setb) (fp, NULL, NULL, 0);
_IO_setg (fp, NULL, NULL, NULL);
_IO_setp (fp, NULL, NULL);
}
#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
else
if (fp->_mode > 0)
{
if (_IO_have_wbackup (fp))
INTUSE(_IO_free_wbackup_area) (fp);
@ -190,6 +184,9 @@ _IO_new_file_close_it (fp)
_IO_wsetp (fp, NULL, NULL);
}
#endif
INTUSE(_IO_setb) (fp, NULL, NULL, 0);
_IO_setg (fp, NULL, NULL, NULL);
_IO_setp (fp, NULL, NULL);
INTUSE(_IO_un_link) ((struct _IO_FILE_plus *) fp);
fp->_flags = _IO_MAGIC|CLOSED_FILEBUF_FLAGS;

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@ -367,7 +367,7 @@ __uflow (fp)
#endif
if (fp->_mode == 0)
_IO_fwide (fp, -11);
_IO_fwide (fp, -1);
if (_IO_in_put_mode (fp))
if (INTUSE(_IO_switch_to_get_mode) (fp) == EOF)
return EOF;

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@ -142,6 +142,7 @@
#ifdef _LIBC
# define _IO_FLAGS2_FORTIFY 4
#endif
#define _IO_FLAGS2_USER_WBUF 8
/* These are "formatting flags" matching the iostream fmtflags enum values. */
#define _IO_SKIPWS 01

39
libio/tst-setvbuf1.c Normal file
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@ -0,0 +1,39 @@
/* Dereived from the test case in BZ #2337. */
#include <errno.h>
#include <error.h>
#include <fcntl.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <wchar.h>
static char buf[512] __attribute__ ((aligned (4096)));
static int
do_test (void)
{
setlocale (LC_ALL, "de_DE.UTF-8");
FILE *fp = fdopen (dup (STDOUT_FILENO), "a");
if (fp == NULL)
error (EXIT_FAILURE, errno, "fdopen(,\"a\")");
setvbuf (fp, buf, _IOFBF, sizeof (buf));
/* fwprintf to unbuffered stream. */
fwprintf (fp, L"hello.\n");
fclose (fp);
/* touch my buffer */
buf[45] = 'a';
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"

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@ -1,4 +1,5 @@
/* Copyright (C) 1993, 1997, 1999, 2000, 2002 Free Software Foundation, Inc.
/* Copyright (C) 1993, 1997, 1999, 2000, 2002, 2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@ -85,35 +86,20 @@ _IO_wfile_doallocate (fp)
_IO_FILE *fp;
{
_IO_size_t size;
int couldbetty;
wchar_t *p;
struct _G_stat64 st;
/* Allocate room for the external buffer. */
if (fp->_IO_buf_base == NULL)
INTUSE(_IO_file_doallocate) (fp);
if (fp->_fileno < 0 || _IO_SYSSTAT (fp, &st) < 0)
{
couldbetty = 0;
size = _IO_BUFSIZ;
#if 0
/* do not try to optimise fseek() */
fp->_flags |= __SNPT;
#endif
}
else
{
couldbetty = S_ISCHR (st.st_mode);
#if _IO_HAVE_ST_BLKSIZE
size = st.st_blksize <= 0 ? _IO_BUFSIZ : st.st_blksize;
#else
size = _IO_BUFSIZ;
#endif
}
/* If narrow buffer is user allocated (set by setvbuf etc.),
use that size as the size of the wide buffer, when it is
allocated by _IO_file_doallocate, multiply that by size
of the wide character. */
size = fp->_IO_buf_end - fp->_IO_buf_base;
if ((fp->_flags & _IO_USER_BUF))
size = (size + sizeof (wchar_t) - 1) / sizeof (wchar_t);
ALLOC_WBUF (p, size * sizeof (wchar_t), EOF);
INTUSE(_IO_wsetb) (fp, p, p + size, 1);
if (couldbetty && isatty (fp->_fileno))
fp->_flags |= _IO_LINE_BUF;
return 1;
}

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@ -115,14 +115,14 @@ _IO_wsetb (f, b, eb, a)
wchar_t *eb;
int a;
{
if (f->_wide_data->_IO_buf_base && !(f->_flags & _IO_USER_BUF))
if (f->_wide_data->_IO_buf_base && !(f->_flags2 & _IO_FLAGS2_USER_WBUF))
FREE_BUF (f->_wide_data->_IO_buf_base, _IO_wblen (f) * sizeof (wchar_t));
f->_wide_data->_IO_buf_base = b;
f->_wide_data->_IO_buf_end = eb;
if (a)
f->_flags &= ~_IO_USER_BUF;
f->_flags2 &= ~_IO_FLAGS2_USER_WBUF;
else
f->_flags |= _IO_USER_BUF;
f->_flags2 |= _IO_FLAGS2_USER_WBUF;
}
INTDEF(_IO_wsetb)
@ -198,7 +198,7 @@ _IO_wdefault_finish (fp, dummy)
int dummy;
{
struct _IO_marker *mark;
if (fp->_wide_data->_IO_buf_base && !(fp->_flags & _IO_USER_BUF))
if (fp->_wide_data->_IO_buf_base && !(fp->_flags2 & _IO_FLAGS2_USER_WBUF))
{
FREE_BUF (fp->_wide_data->_IO_buf_base,
_IO_wblen (fp) * sizeof (wchar_t));

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@ -92,7 +92,7 @@ open_wmemstream (bufloc, sizeloc)
_IO_fwide (&new_f->fp._sf._sbf._f, 1);
_IO_wstr_init_static (&new_f->fp._sf._sbf._f, buf,
_IO_BUFSIZ / sizeof (wchar_t), buf);
new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF;
new_f->fp._sf._sbf._f._flags2 &= ~_IO_FLAGS2_USER_WBUF;
new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
new_f->fp._sf._s._free_buffer = (_IO_free_type) free;

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@ -88,7 +88,7 @@ _IO_wstr_overflow (fp, c)
pos = fp->_wide_data->_IO_write_ptr - fp->_wide_data->_IO_write_base;
if (pos >= (_IO_size_t) (_IO_wblen (fp) + flush_only))
{
if (fp->_flags & _IO_USER_BUF) /* not allowed to enlarge */
if (fp->_flags2 & _IO_FLAGS2_USER_WBUF) /* not allowed to enlarge */
return WEOF;
else
{
@ -182,7 +182,7 @@ enlarge_userbuf (_IO_FILE *fp, _IO_off64_t offset, int reading)
_IO_ssize_t oldend = wd->_IO_write_end - wd->_IO_write_base;
/* Try to enlarge the buffer. */
if (fp->_flags & _IO_USER_BUF)
if (fp->_flags2 & _IO_FLAGS2_USER_WBUF)
/* User-provided buffer. */
return 1;
@ -335,7 +335,7 @@ _IO_wstr_finish (fp, dummy)
_IO_FILE *fp;
int dummy;
{
if (fp->_wide_data->_IO_buf_base && !(fp->_flags & _IO_USER_BUF))
if (fp->_wide_data->_IO_buf_base && !(fp->_flags2 & _IO_FLAGS2_USER_WBUF))
(((_IO_strfile *) fp)->_s._free_buffer) (fp->_wide_data->_IO_buf_base);
fp->_wide_data->_IO_buf_base = NULL;