glibc/libio/vswprintf.c
Zack Weinberg 9964a14579 Mechanically remove _IO_ name aliases for types and constants.
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.
2018-02-21 14:11:05 -05:00

125 lines
4.4 KiB
C

/* Copyright (C) 1994-2018 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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>.
As a special exception, if you link the code in this file with
files compiled with a GNU compiler to produce an executable,
that does not cause the resulting executable to be covered by
the GNU Lesser General Public License. This exception does not
however invalidate any other reasons why the executable file
might be covered by the GNU Lesser General Public License.
This exception applies to code released by its copyright holders
in files containing the exception. */
#include "libioP.h"
#include "strfile.h"
static wint_t _IO_wstrn_overflow (FILE *fp, wint_t c) __THROW;
static wint_t
_IO_wstrn_overflow (FILE *fp, wint_t c)
{
/* When we come to here this means the user supplied buffer is
filled. But since we must return the number of characters which
would have been written in total we must provide a buffer for
further use. We can do this by writing on and on in the overflow
buffer in the _IO_wstrnfile structure. */
_IO_wstrnfile *snf = (_IO_wstrnfile *) fp;
if (fp->_wide_data->_IO_buf_base != snf->overflow_buf)
{
_IO_wsetb (fp, snf->overflow_buf,
snf->overflow_buf + (sizeof (snf->overflow_buf)
/ sizeof (wchar_t)), 0);
fp->_wide_data->_IO_write_base = snf->overflow_buf;
fp->_wide_data->_IO_read_base = snf->overflow_buf;
fp->_wide_data->_IO_read_ptr = snf->overflow_buf;
fp->_wide_data->_IO_read_end = (snf->overflow_buf
+ (sizeof (snf->overflow_buf)
/ sizeof (wchar_t)));
}
fp->_wide_data->_IO_write_ptr = snf->overflow_buf;
fp->_wide_data->_IO_write_end = snf->overflow_buf;
/* Since we are not really interested in storing the characters
which do not fit in the buffer we simply ignore it. */
return c;
}
const struct _IO_jump_t _IO_wstrn_jumps libio_vtable attribute_hidden =
{
JUMP_INIT_DUMMY,
JUMP_INIT(finish, _IO_wstr_finish),
JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstrn_overflow),
JUMP_INIT(underflow, (_IO_underflow_t) _IO_wstr_underflow),
JUMP_INIT(uflow, (_IO_underflow_t) _IO_wdefault_uflow),
JUMP_INIT(pbackfail, (_IO_pbackfail_t) _IO_wstr_pbackfail),
JUMP_INIT(xsputn, _IO_wdefault_xsputn),
JUMP_INIT(xsgetn, _IO_wdefault_xsgetn),
JUMP_INIT(seekoff, _IO_wstr_seekoff),
JUMP_INIT(seekpos, _IO_default_seekpos),
JUMP_INIT(setbuf, _IO_default_setbuf),
JUMP_INIT(sync, _IO_default_sync),
JUMP_INIT(doallocate, _IO_wdefault_doallocate),
JUMP_INIT(read, _IO_default_read),
JUMP_INIT(write, _IO_default_write),
JUMP_INIT(seek, _IO_default_seek),
JUMP_INIT(close, _IO_default_close),
JUMP_INIT(stat, _IO_default_stat),
JUMP_INIT(showmanyc, _IO_default_showmanyc),
JUMP_INIT(imbue, _IO_default_imbue)
};
int
_IO_vswprintf (wchar_t *string, size_t maxlen, const wchar_t *format,
va_list args)
{
_IO_wstrnfile sf;
int ret;
struct _IO_wide_data wd;
#ifdef _IO_MTSAFE_IO
sf.f._sbf._f._lock = NULL;
#endif
if (maxlen == 0)
/* Since we have to write at least the terminating L'\0' a buffer
length of zero always makes the function fail. */
return -1;
_IO_no_init (&sf.f._sbf._f, _IO_USER_LOCK, 0, &wd, &_IO_wstrn_jumps);
_IO_fwide (&sf.f._sbf._f, 1);
string[0] = L'\0';
_IO_wstr_init_static (&sf.f._sbf._f, string, maxlen - 1, string);
ret = _IO_vfwprintf ((FILE *) &sf.f._sbf, format, args);
if (sf.f._sbf._f._wide_data->_IO_buf_base == sf.overflow_buf)
/* ISO C99 requires swprintf/vswprintf to return an error if the
output does not fit in the provided buffer. */
return -1;
/* Terminate the string. */
*sf.f._sbf._f._wide_data->_IO_write_ptr = '\0';
return ret;
}
weak_alias (_IO_vswprintf, __vswprintf)
ldbl_weak_alias (_IO_vswprintf, vswprintf)