61d5ffaf10
issues in these areas:
.h's installed
.hP's installed
-lcurses interaction
files needed in ~/legal for copyleft reasons.
309 lines
12 KiB
C
309 lines
12 KiB
C
/*
|
|
Copyright (C) 1993 Free Software Foundation
|
|
|
|
This file is part of the GNU IO Library. This library is free
|
|
software; you can redistribute it and/or modify it under the
|
|
terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
As a special exception, if you link this library with files
|
|
compiled with a GNU compiler to produce an executable, this does not cause
|
|
the resulting executable to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
#include <errno.h>
|
|
#ifndef errno
|
|
extern int errno;
|
|
#endif
|
|
|
|
#include "iolibio.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
typedef enum _IO_seekflags_ {
|
|
_IO_seek_set = 0,
|
|
_IO_seek_cur = 1,
|
|
_IO_seek_end = 2,
|
|
|
|
/* These bits are ignored unless the _IO_FILE has independent
|
|
read and write positions. */
|
|
_IO_seek_not_in = 4, /* Don't move read posistion. */
|
|
_IO_seek_not_out = 8, /* Don't move write posistion. */
|
|
_IO_seek_pos_ignored = 16 /* Result is ignored (except EOF) */
|
|
} _IO_seekflags;
|
|
|
|
typedef int (*_IO_overflow_t) __P((_IO_FILE*, int));
|
|
typedef int (*_IO_underflow_t) __P((_IO_FILE*));
|
|
typedef _IO_size_t (*_IO_xsputn_t) __P((_IO_FILE*,const void*,_IO_size_t));
|
|
typedef _IO_size_t (*_IO_xsgetn_t) __P((_IO_FILE*, void*, _IO_size_t));
|
|
typedef _IO_ssize_t (*_IO_read_t) __P((_IO_FILE*, void*, _IO_ssize_t));
|
|
typedef _IO_ssize_t (*_IO_write_t) __P((_IO_FILE*,const void*,_IO_ssize_t));
|
|
typedef int (*_IO_stat_t) __P((_IO_FILE*, void*));
|
|
typedef _IO_fpos_t (*_IO_seek_t) __P((_IO_FILE*, _IO_off_t, int));
|
|
typedef int (*_IO_doallocate_t) __P((_IO_FILE*));
|
|
typedef int (*_IO_pbackfail_t) __P((_IO_FILE*, int));
|
|
typedef int (*_IO_setbuf_t) __P((_IO_FILE*, char *, _IO_ssize_t));
|
|
typedef int (*_IO_sync_t) __P((_IO_FILE*));
|
|
typedef void (*_IO_finish_t) __P((_IO_FILE*)); /* finalize */
|
|
typedef int (*_IO_close_t) __P((_IO_FILE*)); /* finalize */
|
|
typedef _IO_fpos_t (*_IO_seekoff_t) __P((_IO_FILE*, _IO_off_t, _IO_seekflags));
|
|
|
|
/* The _IO_seek_cur and _IO_seek_end options are not allowed. */
|
|
typedef _IO_fpos_t (*_IO_seekpos_t) __P((_IO_FILE*, _IO_fpos_t, _IO_seekflags));
|
|
|
|
struct _IO_jump_t {
|
|
_IO_overflow_t __overflow;
|
|
_IO_underflow_t __underflow;
|
|
_IO_xsputn_t __xsputn;
|
|
_IO_xsgetn_t __xsgetn;
|
|
_IO_read_t __read;
|
|
_IO_write_t __write;
|
|
_IO_doallocate_t __doallocate;
|
|
_IO_pbackfail_t __pbackfail;
|
|
_IO_setbuf_t __setbuf;
|
|
_IO_sync_t __sync;
|
|
_IO_finish_t __finish;
|
|
_IO_close_t __close;
|
|
_IO_stat_t __stat;
|
|
_IO_seek_t __seek;
|
|
_IO_seekoff_t __seekoff;
|
|
_IO_seekpos_t __seekpos;
|
|
_IO_underflow_t __uflow;
|
|
#if 0
|
|
get_column;
|
|
set_column;
|
|
#endif
|
|
};
|
|
|
|
/* We always allocate an extra word following an _IO_FILE.
|
|
This is for compatibility with C++ streambuf; the word can
|
|
be used to smash to a pointer to a virtual function table. */
|
|
|
|
struct _IO_FILE_plus {
|
|
_IO_FILE file;
|
|
const void *vtable;
|
|
};
|
|
|
|
/* Generic functions */
|
|
|
|
extern _IO_fpos_t _IO_seekoff __P((_IO_FILE*, _IO_off_t, _IO_seekflags));
|
|
extern _IO_fpos_t _IO_seekpos __P((_IO_FILE*, _IO_fpos_t, _IO_seekflags));
|
|
|
|
extern int _IO_switch_to_get_mode __P((_IO_FILE*));
|
|
extern void _IO_init __P((_IO_FILE*, int));
|
|
extern int _IO_sputbackc __P((_IO_FILE*, int));
|
|
extern int _IO_sungetc __P((_IO_FILE*));
|
|
extern void _IO_un_link __P((_IO_FILE*));
|
|
extern void _IO_link_in __P((_IO_FILE *));
|
|
extern void _IO_doallocbuf __P((_IO_FILE*));
|
|
extern void _IO_unsave_markers __P((_IO_FILE*));
|
|
extern void _IO_setb __P((_IO_FILE*, char*, char*, int));
|
|
extern unsigned _IO_adjust_column __P((unsigned, const char *, int));
|
|
#define _IO_sputn(__fp, __s, __n) (__fp->_jumps->__xsputn(__fp, __s, __n))
|
|
|
|
/* Marker-related function. */
|
|
|
|
extern void _IO_init_marker __P((struct _IO_marker *, _IO_FILE *));
|
|
extern void _IO_remove_marker __P((struct _IO_marker*));
|
|
extern int _IO_marker_difference __P((struct _IO_marker *, struct _IO_marker *));
|
|
extern int _IO_marker_delta __P((struct _IO_marker *));
|
|
extern int _IO_seekmark __P((_IO_FILE *, struct _IO_marker *, int));
|
|
|
|
/* Default jumptable functions. */
|
|
|
|
extern int _IO_default_underflow __P((_IO_FILE*));
|
|
extern int _IO_default_uflow _PARAMS((_IO_FILE*));
|
|
extern int _IO_default_doallocate __P((_IO_FILE*));
|
|
extern void _IO_default_finish __P((_IO_FILE *));
|
|
extern int _IO_default_pbackfail __P((_IO_FILE*, int));
|
|
extern int _IO_default_setbuf __P((_IO_FILE *, char*, _IO_ssize_t));
|
|
extern _IO_size_t _IO_default_xsputn __P((_IO_FILE *, const void*, _IO_size_t));
|
|
extern _IO_size_t _IO_default_xsgetn __P((_IO_FILE *, void*, _IO_size_t));
|
|
extern _IO_fpos_t _IO_default_seekoff __P((_IO_FILE*, _IO_off_t, _IO_seekflags));
|
|
extern _IO_fpos_t _IO_default_seekpos __P((_IO_FILE*, _IO_fpos_t, _IO_seekflags));
|
|
extern _IO_ssize_t _IO_default_write __P((_IO_FILE*,const void*,_IO_ssize_t));
|
|
extern _IO_ssize_t _IO_default_read __P((_IO_FILE*, void*, _IO_ssize_t));
|
|
extern int _IO_default_stat __P((_IO_FILE*, void*));
|
|
extern _IO_fpos_t _IO_default_seek __P((_IO_FILE*, _IO_off_t, int));
|
|
extern int _IO_default_sync __P((_IO_FILE*));
|
|
#define _IO_default_close ((_IO_close_t)_IO_default_sync)
|
|
|
|
extern struct _IO_jump_t _IO_file_jumps;
|
|
extern struct _IO_jump_t _IO_streambuf_jumps;
|
|
extern struct _IO_jump_t _IO_proc_jumps;
|
|
extern struct _IO_jump_t _IO_str_jumps;
|
|
extern int _IO_do_write __P((_IO_FILE*, const char*, _IO_size_t));
|
|
extern int _IO_flush_all __P(());
|
|
extern void _IO_cleanup __P(());
|
|
extern void _IO_flush_all_linebuffered __P(());
|
|
|
|
#define _IO_do_flush(_f) \
|
|
_IO_do_write(_f, (_f)->_IO_write_base, \
|
|
(_f)->_IO_write_ptr-(_f)->_IO_write_base)
|
|
#define _IO_in_put_mode(_fp) ((_fp)->_flags & _IO_CURRENTLY_PUTTING)
|
|
#define _IO_mask_flags(fp, f, mask) \
|
|
((fp)->_flags = ((fp)->_flags & ~(mask)) | ((f) & (mask)))
|
|
#define _IO_setg(fp, eb, g, eg) ((fp)->_IO_read_base = (eb),\
|
|
(fp)->_IO_read_ptr = (g), (fp)->_IO_read_end = (eg))
|
|
#define _IO_setp(__fp, __p, __ep) \
|
|
((__fp)->_IO_write_base = (__fp)->_IO_write_ptr = __p, (__fp)->_IO_write_end = (__ep))
|
|
#define _IO_have_backup(fp) ((fp)->_IO_save_base != NULL)
|
|
#define _IO_in_backup(fp) ((fp)->_flags & _IO_IN_BACKUP)
|
|
#define _IO_have_markers(fp) ((fp)->_markers != NULL)
|
|
#define _IO_blen(p) ((fp)->_IO_buf_end - (fp)->_IO_buf_base)
|
|
|
|
/* Jumptable functions for files. */
|
|
|
|
extern int _IO_file_doallocate __P((_IO_FILE*));
|
|
extern int _IO_file_setbuf __P((_IO_FILE *, char*, _IO_ssize_t));
|
|
extern _IO_fpos_t _IO_file_seekoff __P((_IO_FILE*, _IO_off_t, _IO_seekflags));
|
|
extern _IO_size_t _IO_file_xsputn __P((_IO_FILE*,const void*,_IO_size_t));
|
|
extern int _IO_file_stat __P((_IO_FILE*, void*));
|
|
extern int _IO_file_close __P((_IO_FILE*));
|
|
extern int _IO_file_underflow __P((_IO_FILE *));
|
|
extern int _IO_file_overflow __P((_IO_FILE *, int));
|
|
#define _IO_file_is_open(__fp) ((__fp)->_fileno >= 0)
|
|
extern void _IO_file_init __P((_IO_FILE*));
|
|
extern _IO_FILE* _IO_file_attach __P((_IO_FILE*, int));
|
|
extern _IO_FILE* _IO_file_fopen __P((_IO_FILE*, const char*, const char*));
|
|
extern _IO_ssize_t _IO_file_write __P((_IO_FILE*,const void*,_IO_ssize_t));
|
|
extern _IO_ssize_t _IO_file_read __P((_IO_FILE*, void*, _IO_ssize_t));
|
|
extern int _IO_file_sync __P((_IO_FILE*));
|
|
extern int _IO_file_close_it __P((_IO_FILE*));
|
|
extern _IO_fpos_t _IO_file_seek __P((_IO_FILE *, _IO_off_t, int));
|
|
extern void _IO_file_finish __P((_IO_FILE*));
|
|
|
|
/* Other file functions. */
|
|
extern _IO_FILE* _IO_file_attach __P((_IO_FILE *, int));
|
|
|
|
/* Jumptable functions for proc_files. */
|
|
extern _IO_FILE* _IO_proc_open __P((_IO_FILE*, const char*, const char *));
|
|
extern int _IO_proc_close __P((_IO_FILE*));
|
|
|
|
/* Jumptable functions for strfiles. */
|
|
extern int _IO_str_underflow __P((_IO_FILE*));
|
|
extern int _IO_str_overflow __P((_IO_FILE *, int));
|
|
extern int _IO_str_pbackfail __P((_IO_FILE*, int));
|
|
extern _IO_fpos_t _IO_str_seekoff __P((_IO_FILE*,_IO_off_t,_IO_seekflags));
|
|
|
|
/* Other strfile functions */
|
|
extern void _IO_str_init_static __P((_IO_FILE *, char*, int, char*));
|
|
extern void _IO_str_init_readonly __P((_IO_FILE *, const char*, int));
|
|
extern _IO_ssize_t _IO_str_count __P ((_IO_FILE*));
|
|
|
|
extern _IO_size_t _IO_getline __P((_IO_FILE*,char*,_IO_size_t,int,int));
|
|
extern double _IO_strtod __P((const char *, char **));
|
|
extern char * _IO_dtoa __P((double __d, int __mode, int __ndigits,
|
|
int *__decpt, int *__sign, char **__rve));
|
|
extern int _IO_outfloat __P((double __value, _IO_FILE *__sb, int __type,
|
|
int __width, int __precision, int __flags,
|
|
int __sign_mode, int __fill));
|
|
|
|
extern _IO_FILE *_IO_list_all;
|
|
extern void (*_IO_cleanup_registration_needed)();
|
|
|
|
#ifndef EOF
|
|
#define EOF (-1)
|
|
#endif
|
|
#ifndef NULL
|
|
#if !defined(__cplusplus) || defined(__GNUC__)
|
|
#define NULL ((void*)0)
|
|
#else
|
|
#define NULL (0)
|
|
#endif
|
|
#endif
|
|
|
|
#define FREE_BUF(_B) free(_B)
|
|
#define ALLOC_BUF(_S) (char*)malloc(_S)
|
|
|
|
#ifndef OS_FSTAT
|
|
#define OS_FSTAT fstat
|
|
#endif
|
|
struct stat;
|
|
extern _IO_ssize_t _IO_read __P((int, void*, _IO_size_t));
|
|
extern _IO_ssize_t _IO_write __P((int, const void*, _IO_size_t));
|
|
extern _IO_off_t _IO_lseek __P((int, _IO_off_t, int));
|
|
extern int _IO_close __P((int));
|
|
extern int _IO_fstat __P((int, struct stat *));
|
|
|
|
/* Operations on _IO_fpos_t.
|
|
Normally, these are trivial, but we provide hooks for configurations
|
|
where an _IO_fpos_t is a struct.
|
|
Note that _IO_off_t must be an integral type. */
|
|
|
|
/* _IO_pos_BAD is an _IO_fpos_t value indicating error, unknown, or EOF. */
|
|
#ifndef _IO_pos_BAD
|
|
#define _IO_pos_BAD ((_IO_fpos_t)(-1))
|
|
#endif
|
|
/* _IO_pos_as_off converts an _IO_fpos_t value to an _IO_off_t value. */
|
|
#ifndef _IO_pos_as_off
|
|
#define _IO_pos_as_off(__pos) ((_IO_off_t)(__pos))
|
|
#endif
|
|
/* _IO_pos_adjust adjust an _IO_fpos_t by some number of bytes. */
|
|
#ifndef _IO_pos_adjust
|
|
#define _IO_pos_adjust(__pos, __delta) ((__pos) += (__delta))
|
|
#endif
|
|
/* _IO_pos_0 is an _IO_fpos_t value indicating beginning of file. */
|
|
#ifndef _IO_pos_0
|
|
#define _IO_pos_0 ((_IO_fpos_t)0)
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/* check following! */
|
|
#define FILEBUF_LITERAL(CHAIN, FLAGS, FD) \
|
|
{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, &_IO_file_jumps, FD}
|
|
|
|
/* Define builtinbuf_vtable as a name for the virtual function table
|
|
of the builtinbuf class. */
|
|
#if !defined(builtinbuf_vtable) && defined(__cplusplus)
|
|
#ifdef __GNUC__
|
|
extern char builtinbuf_vtable[]
|
|
asm (_G_VTABLE_LABEL_PREFIX
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
"10"
|
|
#endif
|
|
"builtinbuf");
|
|
#else /* !__GNUC__ */
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
#define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##10builtinbuf
|
|
#else
|
|
#define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##builtinbuf
|
|
#endif
|
|
extern char builtinbuf_vtable[];
|
|
#endif /* !__GNUC__ */
|
|
#endif /* !defined(builtinbuf_vtable) && defined(__cplusplus) */
|
|
|
|
#if defined(__STDC__) || defined(__cplusplus)
|
|
#define _IO_va_start(args, last) va_start(args, last)
|
|
#else
|
|
#define _IO_va_start(args, last) va_start(args)
|
|
#endif
|
|
|
|
extern struct _IO_fake_stdiobuf _IO_stdin_buf, _IO_stdout_buf, _IO_stderr_buf;
|
|
|
|
#if 1
|
|
#define COERCE_FILE(FILE) /* Nothing */
|
|
#else
|
|
/* This is part of the kludge for binary compatibility with old stdio. */
|
|
#define COERCE_FILE(FILE) \
|
|
(((FILE)->_IO_file_flags & _IO_MAGIC_MASK) == _OLD_MAGIC_MASK \
|
|
&& (FILE) = *(FILE**)&((int*)fp)[1])
|
|
#endif
|