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/*
* (C) 2013-2024 by Christian Hesse <mail@eworm.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifndef _PACREDIR_H
#define _PACREDIR_H
#define _GNU_SOURCE
/* glibc headers */
#include <arpa/inet.h>
#include <assert.h>
#include <getopt.h>
#include <math.h>
#include <net/if.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <time.h>
/* systemd headers */
#include <systemd/sd-daemon.h>
/* Avahi headers */
#include <avahi-client/lookup.h>
#include <avahi-common/error.h>
#include <avahi-common/simple-watch.h>
/* various headers needing linker options */
#include <curl/curl.h>
#include <iniparser.h>
#include <microhttpd.h>
#include <pthread.h>
/* compile time configuration */
#include "config.h"
#include "version.h"
#define PROGNAME "pacredir"
/* libmicrohttpd compat */
#if MHD_VERSION >= 0x00097002
# define mhd_result enum MHD_Result
#else
# define mhd_result int
#endif
/* hosts */
struct hosts {
/* host name */
char * host;
/* protocol (AVAHI_PROTO_INET, AVAHI_PROTO_INET6 or AVAHI_PROTO_UNSPEC) */
AvahiProtocol proto;
/* resolved address */
char address[AVAHI_ADDRESS_STR_MAX];
/* network port */
uint16_t port;
/* true if host/service is online */
uint8_t online;
/* unix timestamp of last bad request */
__time_t badtime;
/* count the number of bad requests */
unsigned int badcount;
/* pointer to next struct element */
struct hosts * next;
};
/* ignore interfaces */
struct ignore_interfaces {
/* interface name */
char * interface;
/* pointer to next struct element */
struct ignore_interfaces * next;
};
/* request */
struct request {
/* host infos */
struct hosts * host;
/* url */
char * url;
/* HTTP status code */
long http_code;
/* total connection time */
double time_total;
/* last modified timestamp */
long last_modified;
};
/* write_log */
int write_log(FILE *stream, const char *format, ...);
/* get_fqdn */
char * get_fqdn(const char * hostname, const char * domainname);
/* get_url */
char * get_url(const char * hostname, AvahiProtocol proto, const char * address, const uint16_t port, const uint8_t dbfile, const char * uri);
/* add_host */
int add_host(const char * host, AvahiProtocol proto, const char * address, const uint16_t port, const char * type);
/* remove_host */
int remove_host(const char * host, AvahiProtocol proto, const char * type);
/* resolve_callback */
static void resolve_callback(AvahiServiceResolver *r,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiResolverEvent event,
const char *name,
const char *type,
const char *domain,
const char *host,
const AvahiAddress *address,
uint16_t port,
AvahiStringList *txt,
AvahiLookupResultFlags flags,
void* userdata);
/* browse_callback */
static void browse_callback(AvahiServiceBrowser *b,
AvahiIfIndex interface,
AvahiProtocol protocol,
AvahiBrowserEvent event,
const char *name,
const char *type,
const char *domain,
AvahiLookupResultFlags flags,
void* userdata);
/* client_callback */
static void client_callback(AvahiClient *c,
AvahiClientState state,
void * userdata);
/* get_http_code */
static void * get_http_code(void * data);
/* ahc_echo */
static mhd_result ahc_echo(void * cls,
struct MHD_Connection * connection,
const char * uri,
const char * method,
const char * version,
const char * upload_data,
size_t * upload_data_size,
void ** ptr);
/* sig_callback */
void sig_callback(int signal);
/* sighup_callback */
void sighup_callback(int signal);
#endif /* _PACREDIR_H */
// vim: set syntax=c:
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