uclient-http: set eof mark when content-length is 0
[project/uclient.git] / uclient-backend.h
1 /*
2 * uclient - ustream based protocol client library
3 *
4 * Copyright (C) 2014 Felix Fietkau <nbd@openwrt.org>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18 #ifndef __UCLIENT_INTERNAL_H
19 #define __UCLIENT_INTERNAL_H
20
21 struct uclient_url;
22
23 struct uclient_backend {
24 const char * const * prefix;
25
26 struct uclient *(*alloc)(void);
27 void (*free)(struct uclient *cl);
28 void (*update_proxy_url)(struct uclient *cl);
29 void (*update_url)(struct uclient *cl);
30
31 int (*connect)(struct uclient *cl);
32 int (*request)(struct uclient *cl);
33 void (*disconnect)(struct uclient *cl);
34
35 int (*read)(struct uclient *cl, char *buf, unsigned int len);
36 int (*write)(struct uclient *cl, const char *buf, unsigned int len);
37 };
38
39 void uclient_backend_set_error(struct uclient *cl, int code);
40 void uclient_backend_set_eof(struct uclient *cl);
41 void uclient_backend_reset_state(struct uclient *cl);
42 struct uclient_url *uclient_get_url(const char *url_str, const char *auth_str);
43 struct uclient_url *uclient_get_url_location(struct uclient_url *url, const char *location);
44
45 #endif