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/**
* Copyright © 2014-2015 VideoLabs SAS
*
* Author: Jonathan Calmels <jbjcalmels@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef MICRODNS_COMPAT_H
#define MICRODNS_COMPAT_H
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
enum {
MDNS_STDERR = -1, // standard error
MDNS_NETERR = -2, // network error
MDNS_LKPERR = -3, // lookup error
MDNS_ERROR = -4, // any runtime error that's not originating from the standard library
};
/*
* POSIX systems
*/
#if defined (__unix__) || defined (__APPLE__)
# include <unistd.h>
# include <sys/socket.h>
# include <arpa/inet.h>
# include <netdb.h>
# include <sys/types.h>
# include <errno.h>
# include <net/if.h>
# include <poll.h>
extern struct timeval os_deadline;
typedef int sock_t;
# define INVALID_SOCKET -1
static inline int os_init(const char *version) { (void)version; return (0);}
static inline int os_cleanup(void) {return (0);}
static inline int os_close(sock_t s) {return (close(s));}
static inline int os_wouldblock(void) {return (errno == EWOULDBLOCK);}
#endif // __unix__ || (__APPLE__)
/*
* Windows glue
*/
#if defined (_WIN32)
# include <stdint.h>
# include <winsock2.h>
# include <windows.h>
# include <ws2tcpip.h>
# include <iphlpapi.h>
/* MinGW lacks AI_NUMERICSERV */
# ifndef AI_NUMERICSERV
# define AI_NUMERICSERV 0x00000008
# endif // !AI_NUMERICSERV
extern uint32_t os_deadline;
typedef SOCKET sock_t;
typedef int socklen_t;
static inline int os_init(const char *version)
{
WSADATA data;
uint16_t low, high;
low = version[0] - '0';
high = version[2] - '0';
return (WSAStartup(MAKEWORD(low, high), &data));
}
static inline int os_cleanup(void) {return (WSACleanup());}
static inline int os_close(sock_t s) {return (closesocket(s));}
static inline int os_wouldblock(void) {return (WSAGetLastError() == WSAEWOULDBLOCK);}
# define strerror_r(x, y, z) strerror_s(y, z, x)
#ifndef HAVE_INET_NTOP
extern const char *inet_ntop(int af, const void *src, char *dst, socklen_t size);
extern int inet_pton(int af, const char *src, void *dst);
# endif // !inet_ntop
#else
# if HAVE_IFADDRS_H
#include <ifaddrs.h>
# endif
#endif // _WIN32
#if !defined(HAVE_STRUCT_POLLFD) && !defined(_SYS_POLL_H)
enum
{
POLLERR=0x1,
POLLHUP=0x2,
POLLNVAL=0x4,
POLLWRNORM=0x10,
POLLWRBAND=0x20,
POLLRDNORM=0x100,
POLLRDBAND=0x200,
POLLPRI=0x400,
};
#define POLLIN (POLLRDNORM|POLLRDBAND)
struct pollfd
{
int fd;
unsigned events;
unsigned revents;
};
#endif
#if !defined(HAVE_POLL) && !defined(_SYS_POLL_H)
int poll(struct pollfd *fds, unsigned nfds, int timeout);
#endif
#if defined(_MSC_VER)
#include <io.h>
#include <basetsd.h>
typedef SSIZE_T ssize_t;
#define alloca(s) _alloca(s)
#define write(f,b,c) _write(f,b,c)
#endif
extern int os_strerror(int, char *, size_t);
extern int os_mcast_join(sock_t, const struct sockaddr_storage *, uint32_t intf_idx,
const struct sockaddr_storage* intf_addr);
#endif /* MICRODNS_COMPAT_H */
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