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-rw-r--r--libio/wstrops.c388
1 files changed, 0 insertions, 388 deletions
diff --git a/libio/wstrops.c b/libio/wstrops.c
deleted file mode 100644
index bb62fd6702..0000000000
--- a/libio/wstrops.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/* Copyright (C) 1993-2017 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 <assert.h>
-#include "strfile.h"
-#include "libioP.h"
-#include <string.h>
-#include <wchar.h>
-#include <stdio_ext.h>
-
-void
-_IO_wstr_init_static (_IO_FILE *fp, wchar_t *ptr, _IO_size_t size,
- wchar_t *pstart)
-{
- wchar_t *end;
-
- if (size == 0)
- end = ptr + __wcslen (ptr);
- else if ((_IO_size_t) ptr + size * sizeof (wchar_t) > (_IO_size_t) ptr)
- end = ptr + size;
- else
- /* Even for misaligned ptr make sure there is integral number of wide
- characters. */
- end = ptr + (-1 - (_IO_size_t) ptr) / sizeof (wchar_t);
- _IO_wsetb (fp, ptr, end, 0);
-
- fp->_wide_data->_IO_write_base = ptr;
- fp->_wide_data->_IO_read_base = ptr;
- fp->_wide_data->_IO_read_ptr = ptr;
- if (pstart)
- {
- fp->_wide_data->_IO_write_ptr = pstart;
- fp->_wide_data->_IO_write_end = end;
- fp->_wide_data->_IO_read_end = pstart;
- }
- else
- {
- fp->_wide_data->_IO_write_ptr = ptr;
- fp->_wide_data->_IO_write_end = ptr;
- fp->_wide_data->_IO_read_end = end;
- }
- /* A null _allocate_buffer function flags the strfile as being static. */
- (((_IO_strfile *) fp)->_s._allocate_buffer) = (_IO_alloc_type)0;
-}
-
-_IO_wint_t
-_IO_wstr_overflow (_IO_FILE *fp, _IO_wint_t c)
-{
- int flush_only = c == WEOF;
- _IO_size_t pos;
- if (fp->_flags & _IO_NO_WRITES)
- return flush_only ? 0 : WEOF;
- if ((fp->_flags & _IO_TIED_PUT_GET) && !(fp->_flags & _IO_CURRENTLY_PUTTING))
- {
- fp->_flags |= _IO_CURRENTLY_PUTTING;
- fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_read_ptr;
- fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_read_end;
- }
- 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->_flags2 & _IO_FLAGS2_USER_WBUF) /* not allowed to enlarge */
- return WEOF;
- else
- {
- wchar_t *new_buf;
- wchar_t *old_buf = fp->_wide_data->_IO_buf_base;
- size_t old_wblen = _IO_wblen (fp);
- _IO_size_t new_size = 2 * old_wblen + 100;
-
- if (__glibc_unlikely (new_size < old_wblen)
- || __glibc_unlikely (new_size > SIZE_MAX / sizeof (wchar_t)))
- return EOF;
-
- new_buf
- = (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (new_size
- * sizeof (wchar_t));
- if (new_buf == NULL)
- {
- /* __ferror(fp) = 1; */
- return WEOF;
- }
- if (old_buf)
- {
- __wmemcpy (new_buf, old_buf, old_wblen);
- (*((_IO_strfile *) fp)->_s._free_buffer) (old_buf);
- /* Make sure _IO_setb won't try to delete _IO_buf_base. */
- fp->_wide_data->_IO_buf_base = NULL;
- }
-
- __wmemset (new_buf + old_wblen, L'\0', new_size - old_wblen);
-
- _IO_wsetb (fp, new_buf, new_buf + new_size, 1);
- fp->_wide_data->_IO_read_base =
- new_buf + (fp->_wide_data->_IO_read_base - old_buf);
- fp->_wide_data->_IO_read_ptr =
- new_buf + (fp->_wide_data->_IO_read_ptr - old_buf);
- fp->_wide_data->_IO_read_end =
- new_buf + (fp->_wide_data->_IO_read_end - old_buf);
- fp->_wide_data->_IO_write_ptr =
- new_buf + (fp->_wide_data->_IO_write_ptr - old_buf);
-
- fp->_wide_data->_IO_write_base = new_buf;
- fp->_wide_data->_IO_write_end = fp->_wide_data->_IO_buf_end;
- }
- }
-
- if (!flush_only)
- *fp->_wide_data->_IO_write_ptr++ = c;
- if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
- fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
- return c;
-}
-
-
-_IO_wint_t
-_IO_wstr_underflow (_IO_FILE *fp)
-{
- if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
- fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
- if ((fp->_flags & _IO_TIED_PUT_GET) && (fp->_flags & _IO_CURRENTLY_PUTTING))
- {
- fp->_flags &= ~_IO_CURRENTLY_PUTTING;
- fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_write_ptr;
- fp->_wide_data->_IO_write_ptr = fp->_wide_data->_IO_write_end;
- }
- if (fp->_wide_data->_IO_read_ptr < fp->_wide_data->_IO_read_end)
- return *fp->_wide_data->_IO_read_ptr;
- else
- return WEOF;
-}
-
-
-/* The size of the valid part of the buffer. */
-_IO_ssize_t
-_IO_wstr_count (_IO_FILE *fp)
-{
- struct _IO_wide_data *wd = fp->_wide_data;
-
- return ((wd->_IO_write_ptr > wd->_IO_read_end
- ? wd->_IO_write_ptr : wd->_IO_read_end)
- - wd->_IO_read_base);
-}
-
-
-static int
-enlarge_userbuf (_IO_FILE *fp, _IO_off64_t offset, int reading)
-{
- if ((_IO_ssize_t) offset <= _IO_wblen (fp))
- return 0;
-
- struct _IO_wide_data *wd = fp->_wide_data;
-
- _IO_ssize_t oldend = wd->_IO_write_end - wd->_IO_write_base;
-
- /* Try to enlarge the buffer. */
- if (fp->_flags2 & _IO_FLAGS2_USER_WBUF)
- /* User-provided buffer. */
- return 1;
-
- _IO_size_t newsize = offset + 100;
- if (__glibc_unlikely (newsize > SIZE_MAX / sizeof (wchar_t)))
- return 1;
-
- wchar_t *oldbuf = wd->_IO_buf_base;
- wchar_t *newbuf
- = (wchar_t *) (*((_IO_strfile *) fp)->_s._allocate_buffer) (newsize
- * sizeof (wchar_t));
- if (newbuf == NULL)
- return 1;
-
- if (oldbuf != NULL)
- {
- __wmemcpy (newbuf, oldbuf, _IO_wblen (fp));
- (*((_IO_strfile *) fp)->_s._free_buffer) (oldbuf);
- /* Make sure _IO_setb won't try to delete
- _IO_buf_base. */
- wd->_IO_buf_base = NULL;
- }
-
- _IO_wsetb (fp, newbuf, newbuf + newsize, 1);
-
- if (reading)
- {
- wd->_IO_write_base = newbuf + (wd->_IO_write_base - oldbuf);
- wd->_IO_write_ptr = newbuf + (wd->_IO_write_ptr - oldbuf);
- wd->_IO_write_end = newbuf + (wd->_IO_write_end - oldbuf);
- wd->_IO_read_ptr = newbuf + (wd->_IO_read_ptr - oldbuf);
-
- wd->_IO_read_base = newbuf;
- wd->_IO_read_end = wd->_IO_buf_end;
- }
- else
- {
- wd->_IO_read_base = newbuf + (wd->_IO_read_base - oldbuf);
- wd->_IO_read_ptr = newbuf + (wd->_IO_read_ptr - oldbuf);
- wd->_IO_read_end = newbuf + (wd->_IO_read_end - oldbuf);
- wd->_IO_write_ptr = newbuf + (wd->_IO_write_ptr - oldbuf);
-
- wd->_IO_write_base = newbuf;
- wd->_IO_write_end = wd->_IO_buf_end;
- }
-
- /* Clear the area between the last write position and th
- new position. */
- assert (offset >= oldend);
- if (reading)
- __wmemset (wd->_IO_read_base + oldend, L'\0', offset - oldend);
- else
- __wmemset (wd->_IO_write_base + oldend, L'\0', offset - oldend);
-
- return 0;
-}
-
-static void
-_IO_wstr_switch_to_get_mode (_IO_FILE *fp)
-{
- if (_IO_in_backup (fp))
- fp->_wide_data->_IO_read_base = fp->_wide_data->_IO_backup_base;
- else
- {
- fp->_wide_data->_IO_read_base = fp->_wide_data->_IO_buf_base;
- if (fp->_wide_data->_IO_write_ptr > fp->_wide_data->_IO_read_end)
- fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
- }
- fp->_wide_data->_IO_read_ptr = fp->_wide_data->_IO_write_ptr;
- fp->_wide_data->_IO_read_end = fp->_wide_data->_IO_write_ptr;
-
- fp->_flags &= ~_IO_CURRENTLY_PUTTING;
-}
-
-_IO_off64_t
-_IO_wstr_seekoff (_IO_FILE *fp, _IO_off64_t offset, int dir, int mode)
-{
- _IO_off64_t new_pos;
-
- if (mode == 0 && (fp->_flags & _IO_TIED_PUT_GET))
- mode = (fp->_flags & _IO_CURRENTLY_PUTTING ? _IOS_OUTPUT : _IOS_INPUT);
-
- bool was_writing = (fp->_wide_data->_IO_write_ptr >
- fp->_wide_data->_IO_write_base
- || _IO_in_put_mode (fp));
- if (was_writing)
- _IO_wstr_switch_to_get_mode (fp);
-
- if (mode == 0)
- {
- new_pos = (fp->_wide_data->_IO_write_ptr
- - fp->_wide_data->_IO_write_base);
- }
- else
- {
- _IO_ssize_t cur_size = _IO_wstr_count (fp);
- new_pos = EOF;
-
- /* Move the get pointer, if requested. */
- if (mode & _IOS_INPUT)
- {
- _IO_ssize_t base;
- switch (dir)
- {
- case _IO_seek_set:
- base = 0;
- break;
- case _IO_seek_cur:
- base = (fp->_wide_data->_IO_read_ptr
- - fp->_wide_data->_IO_read_base);
- break;
- default: /* case _IO_seek_end: */
- base = cur_size;
- break;
- }
- _IO_ssize_t maxval = SSIZE_MAX/sizeof (wchar_t) - base;
- if (offset < -base || offset > maxval)
- {
- __set_errno (EINVAL);
- return EOF;
- }
- base += offset;
- if (base > cur_size
- && enlarge_userbuf (fp, base, 1) != 0)
- return EOF;
- fp->_wide_data->_IO_read_ptr = (fp->_wide_data->_IO_read_base
- + base);
- fp->_wide_data->_IO_read_end = (fp->_wide_data->_IO_read_base
- + cur_size);
- new_pos = offset;
- }
-
- /* Move the put pointer, if requested. */
- if (mode & _IOS_OUTPUT)
- {
- _IO_ssize_t base;
- switch (dir)
- {
- case _IO_seek_set:
- base = 0;
- break;
- case _IO_seek_cur:
- base = (fp->_wide_data->_IO_write_ptr
- - fp->_wide_data->_IO_write_base);
- break;
- default: /* case _IO_seek_end: */
- base = cur_size;
- break;
- }
- _IO_ssize_t maxval = SSIZE_MAX/sizeof (wchar_t) - base;
- if (offset < -base || offset > maxval)
- {
- __set_errno (EINVAL);
- return EOF;
- }
- base += offset;
- if (base > cur_size
- && enlarge_userbuf (fp, base, 0) != 0)
- return EOF;
- fp->_wide_data->_IO_write_ptr = (fp->_wide_data->_IO_write_base
- + base);
- new_pos = base;
- }
- }
- return new_pos;
-}
-
-_IO_wint_t
-_IO_wstr_pbackfail (_IO_FILE *fp, _IO_wint_t c)
-{
- if ((fp->_flags & _IO_NO_WRITES) && c != WEOF)
- return WEOF;
- return _IO_wdefault_pbackfail (fp, c);
-}
-
-void
-_IO_wstr_finish (_IO_FILE *fp, int dummy)
-{
- 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;
-
- _IO_wdefault_finish (fp, 0);
-}
-
-const struct _IO_jump_t _IO_wstr_jumps libio_vtable =
-{
- JUMP_INIT_DUMMY,
- JUMP_INIT(finish, _IO_wstr_finish),
- JUMP_INIT(overflow, (_IO_overflow_t) _IO_wstr_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)
-};
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