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/* $XConsortium: t1stdio.h,v 1.4 91/10/10 11:19:49 rws Exp $ */
/* Copyright International Business Machines,Corp. 1991
* All Rights Reserved
*
* License to use, copy, modify, and distribute this software
* and its documentation for any purpose and without fee is
* hereby granted, provided that the above copyright notice
* appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation,
* and that the name of IBM not be used in advertising or
* publicity pertaining to distribution of the software without
* specific, written prior permission.
*
* IBM PROVIDES THIS SOFTWARE "AS IS", WITHOUT ANY WARRANTIES
* OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT
* LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT OF
* THIRD PARTY RIGHTS. THE ENTIRE RISK AS TO THE QUALITY AND
* PERFORMANCE OF THE SOFTWARE, INCLUDING ANY DUTY TO SUPPORT
* OR MAINTAIN, BELONGS TO THE LICENSEE. SHOULD ANY PORTION OF
* THE SOFTWARE PROVE DEFECTIVE, THE LICENSEE (NOT IBM) ASSUMES
* THE ENTIRE COST OF ALL SERVICING, REPAIR AND CORRECTION. IN
* NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* T1IO FILE structure and related stuff */
#include "types.h"
#define FILE F_FILE
typedef unsigned char F_char;
typedef struct F_FILE {
F_char *b_base; /* Pointer to beginning of buffer */
int32_t b_size; /* Size of the buffer */
F_char *b_ptr; /* Pointer to next char in buffer */
int32_t b_cnt; /* Number of chars remaining in buffer */
F_char flags; /* other flags; != 0 means getc must call fgetc */
F_char ungotc; /* Place for ungotten char; flag set if present */
short error; /* error status */
int fd; /* underlying file descriptor */
} F_FILE;
/* defines for flags */
#define UNGOTTENC (0x01)
#define FIOEOF (0x80)
#define FIOERROR (0x40)
#ifndef NULL
#define NULL 0 /* null pointer */
#endif
#define EOF (-1) /* end of file */
#define F_BUFSIZ (512)
#ifdef fopen
#undef fopen
#endif
#ifdef fclose
#undef fclose
#endif
#ifdef feof
#undef feof
#endif
#ifdef ferror
#undef ferror
#endif
#ifdef fread
#undef fread
#endif
#ifdef getc
#undef getc
#endif
#ifdef ungetc
#undef ungetc
#endif
#ifdef fgetc
#undef fgetc
#endif
#define getc(f) \
( \
( ((f)->b_cnt > 0) && ((f)->flags == 0) ) ? \
( (f)->b_cnt--, (unsigned int)*( (f)->b_ptr++ ) ) : \
T1Getc(f) \
)
extern F_FILE *T1Open(char *, char *), *T1eexec(F_FILE *);
extern int T1Close(F_FILE *);
extern int T1Read(char *, int, int, F_FILE *),
T1Getc(F_FILE *), T1Ungetc(int, F_FILE *);
#define fclose(f) T1Close(f)
#define fopen(name,mode) T1Open(name,mode)
#define ungetc(c,f) T1Ungetc(c,f)
#define fgetc(f) T1Getc(f)
#define fread(bufP,size,n,f) T1Read(bufP,size,n,f)
#define feof(f) (((f)->flags & FIOEOF) && ((f)->b_cnt==0))
#define ferror(f) (((f)->flags & FIOERROR)?(f)->error:0)
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