blob: abb054a335d7cee9897fbb2fc3f2814470f6f9f1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* zio.h
* a generic input stream interface
* $Id: zio.h,v 1.1 1997/06/16 16:50:22 roberto Exp roberto $
*/
#ifndef zio_h
#define zio_h
#include <stdio.h>
/* For Lua only */
#define zFopen luaz_Fopen
#define zfopen luaz_fopen
#define zpopen luaz_popen
#define zsopen luaz_sopen
#define zmopen luaz_mopen
#define EOZ (-1) /* end of stream */
typedef struct zio ZIO;
int zgetc(ZIO* z); /* get next byte */
int zungetc(ZIO* z); /* put back last byte read */
int zread(ZIO* z, void* b, int n); /* read next n bytes */
int zclose(ZIO* z); /* close stream */
ZIO* zFopen(ZIO* z, FILE* f); /* open FILEs */
ZIO* zfopen(ZIO* z, char* s, char* m); /* file by name */
ZIO* zpopen(ZIO* z, char* s, char* m); /* pipe */
ZIO* zsopen(ZIO* z, char* s); /* string */
ZIO* zmopen(ZIO* z, char* b, int size); /* memory */
#define zgetc(z) (--(z)->n>=0 ? ((int)*(z)->p++): (z)->filbuf(z))
#define zungetc(z) (++(z)->n,--(z)->p)
#define zclose(z) (*(z)->close)(z)
/* --------- Private Part ------------------ */
#define ZBSIZE 256 /* buffer size */
struct zio {
int n; /* bytes still unread */
unsigned char* p; /* current position in buffer */
int (*filbuf)(ZIO* z);
int (*close)(ZIO* z);
void* u; /* additional data */
unsigned char buffer[ZBSIZE]; /* buffer */
};
#endif
|
