4 typedef struct substdio
{
12 #define SUBSTDIO_FDBUF(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
14 extern void substdio_fdbuf();
16 extern int substdio_flush();
17 extern int substdio_put();
18 extern int substdio_bput();
19 extern int substdio_putflush();
20 extern int substdio_puts();
21 extern int substdio_bputs();
22 extern int substdio_putsflush();
24 extern int substdio_get();
25 extern int substdio_bget();
26 extern int substdio_feed();
28 extern char *substdio_peek();
29 extern void substdio_seek();
31 #define substdio_fileno(s) ((s)->fd)
33 #define SUBSTDIO_INSIZE 8192
34 #define SUBSTDIO_OUTSIZE 8192
36 #define substdio_PEEK(s) ( (s)->x + (s)->n )
37 #define substdio_SEEK(s,len) ( ( (s)->p -= (len) ) , ( (s)->n += (len) ) )
39 #define substdio_BPUTC(s,c) \
40 ( ((s)->n != (s)->p) \
41 ? ( (s)->x[(s)->p++] = (c), 0 ) \
42 : substdio_bput((s),&(c),1) \
45 extern int substdio_copy();