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/* $NetBSD: common.h,v 1.24 2016/10/20 21:25:57 joerg Exp $ */
/*-
* Copyright (c) 1998-2004 Dag-Erling Coïdan Smørgrav
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD: common.h,v 1.30 2007/12/18 11:03:07 des Exp $
*/
#ifndef _COMMON_H_INCLUDED
#define _COMMON_H_INCLUDED
#define FTP_DEFAULT_PORT 21
#define HTTP_DEFAULT_PORT 80
#define FTP_DEFAULT_PROXY_PORT 21
#define HTTP_DEFAULT_PROXY_PORT 3128
#include "openssl-compat.h"
#if defined(__GNUC__) && __GNUC__ >= 3
#define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg) \
__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
#else
#define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg)
#endif
#if !defined(__sun) && !defined(__hpux) && !defined(__INTERIX) && \
!defined(__digital__) && !defined(__linux) && !defined(__MINT__) && \
!defined(__sgi) && !defined(__minix) && !defined(__CYGWIN__)
#define HAVE_SA_LEN
#endif
/* Connection */
typedef struct fetchconn conn_t;
struct fetchconn {
int sd; /* socket descriptor */
char *buf; /* buffer */
size_t bufsize; /* buffer size */
size_t buflen; /* length of buffer contents */
int buf_events; /* poll flags for the next cycle */
char *next_buf; /* pending buffer, e.g. after getln */
size_t next_len; /* size of pending buffer */
int err; /* last protocol reply code */
SSL *ssl; /* SSL handle */
SSL_CTX *ssl_ctx; /* SSL context */
X509 *ssl_cert; /* server certificate */
const SSL_METHOD *ssl_meth; /* SSL method */
char *ftp_home;
struct url *cache_url;
int cache_af;
int (*cache_close)(conn_t *);
conn_t *next_cached;
};
/* Structure used for error message lists */
struct fetcherr {
const int num;
const int cat;
const char *string;
};
void fetch_seterr(struct fetcherr *, int);
void fetch_syserr(void);
void fetch_info(const char *, ...) LIBFETCH_PRINTFLIKE(1, 2);
int fetch_default_port(const char *);
int fetch_default_proxy_port(const char *);
int fetch_bind(int, int, const char *);
conn_t *fetch_cache_get(const struct url *, int);
void fetch_cache_put(conn_t *, int (*)(conn_t *));
conn_t *fetch_connect(struct url *, int, int);
conn_t *fetch_reopen(int);
int fetch_ssl(conn_t *, const struct url *, int);
ssize_t fetch_read(conn_t *, char *, size_t);
int fetch_getln(conn_t *);
ssize_t fetch_write(conn_t *, const void *, size_t);
int fetch_close(conn_t *);
int fetch_add_entry(struct url_list *, struct url *, const char *, int);
int fetch_netrc_auth(struct url *url);
int fetch_no_proxy_match(const char *);
int fetch_urlpath_safe(char);
#define ftp_seterr(n) fetch_seterr(ftp_errlist, n)
#define http_seterr(n) fetch_seterr(http_errlist, n)
#define netdb_seterr(n) fetch_seterr(netdb_errlist, n)
#define url_seterr(n) fetch_seterr(url_errlist, n)
fetchIO *fetchIO_unopen(void *, ssize_t (*)(void *, void *, size_t),
ssize_t (*)(void *, const void *, size_t), void (*)(void *));
/*
* I don't really like exporting http_request() and ftp_request(),
* but the HTTP and FTP code occasionally needs to cross-call
* eachother, and this saves me from adding a lot of special-case code
* to handle those cases.
*
* Note that _*_request() free purl, which is way ugly but saves us a
* whole lot of trouble.
*/
fetchIO *http_request(struct url *, const char *,
struct url_stat *, struct url *, const char *);
fetchIO *ftp_request(struct url *, const char *, const char *,
struct url_stat *, struct url *, const char *);
/*
* Check whether a particular flag is set
*/
#define CHECK_FLAG(x) (flags && strchr(flags, (x)))
#endif
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