[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/libio/wstrops.c b/ap/libc/glibc/glibc-2.23/libio/wstrops.c
new file mode 100644
index 0000000..2b9d036
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/libio/wstrops.c
@@ -0,0 +1,357 @@
+/* Copyright (C) 1993-2016 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_blen (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;
+}
+
+
+_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);
+
+ if (mode == 0)
+ {
+ /* Don't move any pointers. But there is no clear indication what
+ mode FP is in. Let's guess. */
+ if (fp->_IO_file_flags & _IO_NO_WRITES)
+ new_pos = fp->_wide_data->_IO_read_ptr - fp->_wide_data->_IO_read_base;
+ else
+ 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)
+ {
+ switch (dir)
+ {
+ case _IO_seek_end:
+ offset += cur_size;
+ break;
+ case _IO_seek_cur:
+ offset += (fp->_wide_data->_IO_read_ptr
+ - fp->_wide_data->_IO_read_base);
+ break;
+ default: /* case _IO_seek_set: */
+ break;
+ }
+ if (offset < 0)
+ return EOF;
+ if ((_IO_ssize_t) offset > cur_size
+ && enlarge_userbuf (fp, offset, 1) != 0)
+ return EOF;
+ fp->_wide_data->_IO_read_ptr = (fp->_wide_data->_IO_read_base
+ + offset);
+ 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)
+ {
+ switch (dir)
+ {
+ case _IO_seek_end:
+ offset += cur_size;
+ break;
+ case _IO_seek_cur:
+ offset += (fp->_wide_data->_IO_write_ptr
+ - fp->_wide_data->_IO_write_base);
+ break;
+ default: /* case _IO_seek_set: */
+ break;
+ }
+ if (offset < 0)
+ return EOF;
+ if ((_IO_ssize_t) offset > cur_size
+ && enlarge_userbuf (fp, offset, 0) != 0)
+ return EOF;
+ fp->_wide_data->_IO_write_ptr = (fp->_wide_data->_IO_write_base
+ + offset);
+ new_pos = offset;
+ }
+ }
+ 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 =
+{
+ 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)
+};