diff options
Diffstat (limited to 'libio/vswprintf.c')
| -rw-r--r-- | libio/vswprintf.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/libio/vswprintf.c b/libio/vswprintf.c deleted file mode 100644 index fc78bc9e95..0000000000 --- a/libio/vswprintf.c +++ /dev/null @@ -1,124 +0,0 @@ -/* Copyright (C) 1994-2017 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 (_IO_FILE *fp, wint_t c) __THROW; - -static wint_t -_IO_wstrn_overflow (_IO_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, _IO_size_t maxlen, const wchar_t *format, - _IO_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 ((_IO_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) |