2.9BSD - /usr/include/stdio.h

   1: #define UCB_LINEBUF
   2: 
   3: #define BUFSIZ  512
   4: #define _NFILE  20
   5: #ifndef FILE
   6: extern  struct  _iobuf {
   7:     char    *_ptr;
   8:     int _cnt;
   9:     char    *_base;
  10: #ifdef  UCB_LINEBUF
  11:     short   _flag;
  12: #else
  13:     char    _flag;
  14: #endif
  15:     char    _file;
  16: } _iob[_NFILE];
  17: # endif
  18: 
  19: #define _IOREAD 01
  20: #define _IOWRT  02
  21: #define _IONBF  04
  22: #define _IOMYBUF    010
  23: #define _IOEOF  020
  24: #define _IOERR  040
  25: #define _IOSTRG 0100
  26: #define _IORW   0200
  27: #ifdef  UCB_LINEBUF
  28: #define _IOLBF  0400
  29: #endif	UCB_LINEBUF
  30: 
  31: #define NULL    0
  32: #define FILE    struct _iobuf
  33: #define EOF (-1)
  34: 
  35: #define stdin   (&_iob[0])
  36: #define stdout  (&_iob[1])
  37: #define stderr  (&_iob[2])
  38: #define getc(p)     (--(p)->_cnt>=0? *(p)->_ptr++&0377:_filbuf(p))
  39: #define getchar()   getc(stdin)
  40: #define putc(x,p) (--(p)->_cnt>=0? ((int)(*(p)->_ptr++=(unsigned)(x))):_flsbuf((unsigned)(x),p))
  41: #define putchar(x)  putc(x,stdout)
  42: #define feof(p)     (((p)->_flag&_IOEOF)!=0)
  43: #define ferror(p)   (((p)->_flag&_IOERR)!=0)
  44: #define fileno(p)   ((p)->_file)
  45: 
  46: FILE    *fopen();
  47: FILE    *fdopen();
  48: FILE    *freopen();
  49: long    ftell();
  50: char    *fgets();

Defined struct's

Defined macros