174 lines
4.6 KiB
C
174 lines
4.6 KiB
C
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/**
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*
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* This header file defines the information used by the standard I/O
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* package.
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*
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**/
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#define _BUFSIZ 512 /* standard buffer size */
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#define BUFSIZ 512 /* standard buffer size */
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#define _NFILE 20 /* maximum number of files */
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struct _iobuf
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{
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unsigned char *_ptr; /* current buffer pointer */
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int _rcnt; /* current byte count for reading */
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int _wcnt; /* current byte count for writing */
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unsigned char *_base; /* base address of I/O buffer */
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int _size; /* size of buffer */
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int _flag; /* control flags */
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unsigned char _file; /* file number */
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unsigned char _cbuff; /* single char buffer */
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};
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extern struct _iobuf _iob[_NFILE];
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/**
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*
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* Definitions associated with _iobuf._flag
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*
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*/
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#define _IOFBF 0 /* fully buffered (for setvbuf) */
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#define _IOREAD 1 /* read flag */
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#define _IOWRT 2 /* write flag */
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#define _IONBF 4 /* non-buffered flag */
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#define _IOMYBUF 8 /* private buffer flag */
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#define _IOEOF 16 /* end-of-file flag */
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#define _IOERR 32 /* error flag */
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#define _IOLBF 64 /* line-buffered flag */
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#define _IORW 128 /* read-write (update) flag */
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#define _IOAPP 0x4000 /* append flag */
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#define _IOXLAT 0x8000 /* translation flag */
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#ifndef NULL
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#if SPTR
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#define NULL 0 /* null pointer value */
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#else
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#define NULL 0L
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#endif
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#endif
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#define FILE struct _iobuf /* shorthand */
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#define EOF (-1) /* end-of-file code */
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#define stdin (&_iob[0]) /* standard input file pointer */
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#define stdout (&_iob[1]) /* standard output file pointer */
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#define stderr (&_iob[2]) /* standard error file pointer */
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#define stdaux (&_iob[3]) /* standard auxiliary file pointer */
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#define stdprt (&_iob[4]) /* standard printer file pointer */
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#define getc(p) (--(p)->_rcnt>=0? *(p)->_ptr++:_filbf(p))
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#define getchar() getc(stdin)
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#define putc(c,p) (--(p)->_wcnt>=0? ((int)(*(p)->_ptr++=(c))):_flsbf((c),p))
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#define putchar(c) putc(c,stdout)
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#define feof(p) (((p)->_flag&_IOEOF)!=0)
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#define ferror(p) (((p)->_flag&_IOERR)!=0)
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#define fileno(p) (p)->_file
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#define rewind(fp) fseek(fp,0L,0)
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#define fflush(fp) _flsbf(-1,fp)
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#define clearerr(fp) clrerr(fp)
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#ifndef NARGS
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extern void clrerr(FILE *);
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extern int cprintf(char *, );
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extern int cscanf(char *, );
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extern int fclose(FILE *);
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extern int fcloseall(void);
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extern FILE *fdopen(int, char *);
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extern int fgetc(FILE *);
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extern int fgetchar(void);
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extern char *fgets(char *, int, FILE *);
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extern int flushall(void);
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extern int fmode(FILE *, int);
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extern FILE *fopen(char *, char *);
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extern FILE *fopene(char *, char *, char *);
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extern int fprintf(FILE *, char *, );
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extern int fputc(int, FILE *);
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extern int fputchar(int);
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extern int fputs(char *, FILE *);
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extern int fread(char *, int, int, FILE *);
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extern FILE *freopen(char *, char *, FILE *);
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extern int fscanf(FILE*, char *, );
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extern int fseek(FILE *, long, int);
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extern long ftell(FILE *);
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extern int fwrite(char *, int, int, FILE *);
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extern char *gets(char *);
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extern int printf(char *, );
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extern int puts(char *);
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extern scanf(char *, );
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extern int setbuf(FILE *, char *);
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extern int setnbf(FILE *);
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extern int setvbuf(FILE*, char *, int, int);
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extern int sprintf(char *, char *, );
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extern sscanf(char *, char *, );
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extern int ungetc(int, FILE *);
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extern int _filbf(FILE *);
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extern int _flsbf(int, FILE *);
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#else
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extern void clrerr();
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extern int cprintf();
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extern int cscanf();
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extern int fclose();
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extern int fcloseall();
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extern FILE *fdopen();
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extern int fgetc();
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extern int fgetchar();
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extern char *fgets();
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extern int flushall();
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extern int fmode();
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extern FILE *fopen();
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extern FILE *fopene();
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extern int fprintf();
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extern int fputc();
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extern int fputchar();
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extern int fputs();
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extern int fread();
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extern FILE *freopen();
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extern int fscanf();
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extern int fseek();
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extern long ftell();
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extern int fwrite();
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extern char *gets();
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extern int printf();
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extern int puts();
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extern scanf();
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extern int setbuf();
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extern int setnbf();
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extern int setvbuf();
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extern int sprintf();
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extern sscanf();
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extern int ungetc();
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extern int _filbf();
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extern int _flsbf();
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#endif
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/**
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*
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* Miscellaneous I/O services
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*
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*/
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#ifndef NARGS
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extern int access(char *, int);
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extern int chdir(char *);
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extern int chmod(char *, int);
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extern char *getcwd(char *, int);
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extern int mkdir(char *);
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extern int perror(char *);
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extern int rename(char *, char *);
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extern int rmdir(char *);
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extern char *tmpnam(char *);
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#else
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extern int access();
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extern int chdir();
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extern int chmod();
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extern char *getcwd();
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extern int mkdir();
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extern int perror();
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extern int rename();
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extern int rmdir();
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extern char *tmpnam();
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#endif
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