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/* $Id: istream.h,v 1.4 2001/11/24 02:01:26 ukai Exp $ */
#ifndef IO_STREAM_H
#define IO_STREAM_H
#include <stdio.h>
#ifdef USE_SSL
#include <bio.h>
#include <x509.h>
#include <ssl.h>
#endif
#include "Str.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
struct stream_buffer {
unsigned char *buf;
int size, cur, next;
};
typedef struct stream_buffer *StreamBuffer;
struct file_handle {
FILE *f;
void (*close) ();
};
#ifdef USE_SSL
struct ssl_handle {
SSL *ssl;
int sock;
};
#endif
union input_stream;
struct ens_handle {
union input_stream *is;
Str s;
int pos;
char encoding;
};
struct base_stream {
struct stream_buffer stream;
void *handle;
char type;
char iseos;
int (*read) ();
void (*close) ();
};
struct file_stream {
struct stream_buffer stream;
struct file_handle *handle;
char type;
char iseos;
int (*read) ();
void (*close) ();
};
struct str_stream {
struct stream_buffer stream;
Str handle;
char type;
char iseos;
int (*read) ();
void (*close) ();
};
#ifdef USE_SSL
struct ssl_stream {
struct stream_buffer stream;
struct ssl_handle *handle;
char type;
char iseos;
int (*read) ();
void (*close) ();
};
#endif /* USE_SSL */
struct encoded_stream {
struct stream_buffer stream;
struct ens_handle *handle;
char type;
char iseos;
int (*read) ();
void (*close) ();
};
union input_stream {
struct base_stream base;
struct file_stream file;
struct str_stream str;
#ifdef USE_SSL
struct ssl_stream ssl;
#endif /* USE_SSL */
struct encoded_stream ens;
};
typedef struct base_stream *BaseStream;
typedef struct file_stream *FileStream;
typedef struct str_stream *StrStream;
#ifdef USE_SSL
typedef struct ssl_stream *SSLStream;
#endif /* USE_SSL */
typedef struct encoded_stream *EncodedStrStream;
typedef union input_stream *InputStream;
extern InputStream newInputStream(int des);
extern InputStream newFileStream(FILE * f, void (*closep) ());
extern InputStream newStrStream(Str s);
#ifdef USE_SSL
extern InputStream newSSLStream(SSL * ssl, int sock);
#endif
extern InputStream newEncodedStream(InputStream is, char encoding);
extern void ISclose(InputStream stream);
extern int ISgetc(InputStream stream);
extern int ISundogetc(InputStream stream);
extern Str StrISgets(InputStream stream);
extern Str StrmyISgets(InputStream stream);
extern int ISread(InputStream stream, Str buf, int count);
extern int ISfileno(InputStream stream);
extern int ISeos(InputStream stream);
#ifdef USE_SSL
extern Str ssl_get_certificate(InputStream stream);
#endif
#define IST_BASIC 0
#define IST_FILE 1
#define IST_STR 2
#define IST_SSL 3
#define IST_ENCODED 4
#define IStype(stream) ((stream)->base.type)
#define is_eos(stream) ISeos(stream)
#define iseos(stream) ((stream)->base.iseos)
#define file_of(stream) ((stream)->file.handle->f)
#define set_close(stream,closep) ((IStype(stream)==IST_FILE)?((stream)->file.handle->close=(closep)):0)
#define str_of(stream) ((stream)->str.handle)
#ifdef USE_SSL
#define ssl_socket_of(stream) ((stream)->ssl.handle->sock)
#define ssl_of(stream) ((stream)->ssl.handle->ssl)
#endif
#ifdef USE_BINMODE_STREAM
#define openIS(path) newInputStream(open((path),O_RDONLY|O_BINARY))
#else
#define openIS(path) newInputStream(open((path),O_RDONLY))
#endif /* USE_BINMODE_STREAM */
#endif
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