| /* Copyright (C) 1991-2021 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 |
| <https://www.gnu.org/licenses/>. */ |
| |
| #ifndef __struct_FILE_defined |
| #define __struct_FILE_defined 1 |
| |
| /* Caution: The contents of this file are not part of the official |
| stdio.h API. However, much of it is part of the official *binary* |
| interface, and therefore cannot be changed. */ |
| |
| #if defined _IO_USE_OLD_IO_FILE && !defined _LIBC |
| # error "_IO_USE_OLD_IO_FILE should only be defined when building libc itself" |
| #endif |
| |
| #if defined _IO_lock_t_defined && !defined _LIBC |
| # error "_IO_lock_t_defined should only be defined when building libc itself" |
| #endif |
| |
| #include <bits/types.h> |
| |
| struct _IO_FILE; |
| struct _IO_marker; |
| struct _IO_codecvt; |
| struct _IO_wide_data; |
| |
| /* During the build of glibc itself, _IO_lock_t will already have been |
| defined by internal headers. */ |
| #ifndef _IO_lock_t_defined |
| typedef void _IO_lock_t; |
| #endif |
| |
| /* The tag name of this struct is _IO_FILE to preserve historic |
| C++ mangled names for functions taking FILE* arguments. |
| That name should not be used in new code. */ |
| struct _IO_FILE |
| { |
| int _flags; /* High-order word is _IO_MAGIC; rest is flags. */ |
| |
| /* The following pointers correspond to the C++ streambuf protocol. */ |
| char *_IO_read_ptr; /* Current read pointer */ |
| char *_IO_read_end; /* End of get area. */ |
| char *_IO_read_base; /* Start of putback+get area. */ |
| char *_IO_write_base; /* Start of put area. */ |
| char *_IO_write_ptr; /* Current put pointer. */ |
| char *_IO_write_end; /* End of put area. */ |
| char *_IO_buf_base; /* Start of reserve area. */ |
| char *_IO_buf_end; /* End of reserve area. */ |
| |
| /* The following fields are used to support backing up and undo. */ |
| char *_IO_save_base; /* Pointer to start of non-current get area. */ |
| char *_IO_backup_base; /* Pointer to first valid character of backup area */ |
| char *_IO_save_end; /* Pointer to end of non-current get area. */ |
| |
| struct _IO_marker *_markers; |
| |
| struct _IO_FILE *_chain; |
| |
| int _fileno; |
| int _flags2; |
| __off_t _old_offset; /* This used to be _offset but it's too small. */ |
| |
| /* 1+column number of pbase(); 0 is unknown. */ |
| unsigned short _cur_column; |
| signed char _vtable_offset; |
| char _shortbuf[1]; |
| |
| _IO_lock_t *_lock; |
| #ifdef _IO_USE_OLD_IO_FILE |
| }; |
| |
| struct _IO_FILE_complete |
| { |
| struct _IO_FILE _file; |
| #endif |
| __off64_t _offset; |
| /* Wide character stream stuff. */ |
| struct _IO_codecvt *_codecvt; |
| struct _IO_wide_data *_wide_data; |
| struct _IO_FILE *_freeres_list; |
| void *_freeres_buf; |
| size_t __pad5; |
| int _mode; |
| /* Make sure we don't get into trouble again. */ |
| char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)]; |
| }; |
| |
| /* These macros are used by bits/stdio.h and internal headers. */ |
| #define __getc_unlocked_body(_fp) \ |
| (__glibc_unlikely ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end) \ |
| ? __uflow (_fp) : *(unsigned char *) (_fp)->_IO_read_ptr++) |
| |
| #define __putc_unlocked_body(_ch, _fp) \ |
| (__glibc_unlikely ((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \ |
| ? __overflow (_fp, (unsigned char) (_ch)) \ |
| : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch))) |
| |
| #define _IO_EOF_SEEN 0x0010 |
| #define __feof_unlocked_body(_fp) (((_fp)->_flags & _IO_EOF_SEEN) != 0) |
| |
| #define _IO_ERR_SEEN 0x0020 |
| #define __ferror_unlocked_body(_fp) (((_fp)->_flags & _IO_ERR_SEEN) != 0) |
| |
| #define _IO_USER_LOCK 0x8000 |
| /* Many more flag bits are defined internally. */ |
| |
| #endif |