/*
 * Copyright (c) 2021-2021 Huawei Device Co., Ltd. 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.
 *
 * 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. Neither the name of the copyright holder nor the names of its contributors may be used
 *    to endorse or promote products derived from this software without specific prior written
 *    permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 COPYRIGHT HOLDER OR
 * CONTRIBUTORS 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.
 */

#ifndef _ADAPT_SYS_SOCKET_H
#define _ADAPT_SYS_SOCKET_H

#include <sys/features.h>
#include <sys/types.h>
#include <sys/uio.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef unsigned socklen_t;
typedef unsigned short sa_family_t;

struct msghdr {
    void *msg_name;
    socklen_t msg_namelen;
    struct iovec *msg_iov;
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == BIG_ENDIAN
    int __pad1;
#endif
    int msg_iovlen;
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == LITTLE_ENDIAN
    int __pad1;
#endif
    void *msg_control;
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == BIG_ENDIAN
    int __pad2;
#endif
    socklen_t msg_controllen;
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == LITTLE_ENDIAN
    int __pad2;
#endif
    int msg_flags;
};

struct cmsghdr {
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == BIG_ENDIAN
    int __pad1;
#endif
    socklen_t cmsg_len;
#if LONG_MAX > 0x7fffffff && BYTE_ORDER == LITTLE_ENDIAN
    int __pad1;
#endif
    int cmsg_level;
    int cmsg_type;
};

#ifdef _GNU_SOURCE
struct ucred {
    pid_t pid;
    uid_t uid;
    gid_t gid;
};

struct mmsghdr {
    struct msghdr msg_hdr;
    unsigned int  msg_len;
};

struct timespec;

int sendmmsg (int, struct mmsghdr *, unsigned int, unsigned int);
int recvmmsg (int, struct mmsghdr *, unsigned int, unsigned int, struct timespec *);
#endif

struct linger {
    int l_onoff;
    int l_linger;
};

#define SHUT_RD 0
#define SHUT_WR 1
#define SHUT_RDWR 2

#ifndef SOCK_STREAM
#define SOCK_STREAM    1
#define SOCK_DGRAM     2
#endif

#define SOCK_RAW       3
#define SOCK_RDM       4
#define SOCK_SEQPACKET 5
#define SOCK_DCCP      6
#define SOCK_PACKET    10

#ifndef SOCK_CLOEXEC
#define SOCK_CLOEXEC   02000000
#define SOCK_NONBLOCK  04000
#endif

#define PF_UNSPEC       0
#define PF_LOCAL        1
#define PF_UNIX         PF_LOCAL
#define PF_FILE         PF_LOCAL
#define PF_INET         2
#define PF_INET6        10
#define PF_IPX          4

#define AF_UNSPEC       PF_UNSPEC
#define AF_LOCAL        PF_LOCAL
#define AF_UNIX         AF_LOCAL
#define AF_FILE         AF_LOCAL
#define AF_INET         PF_INET
#define AF_INET6        PF_INET6
#define AF_IPX          PF_IPX

#ifndef SO_DEBUG
#define SO_DEBUG        1
#define SO_REUSEADDR    2
#define SO_TYPE         3
#define SO_ERROR        4
#define SO_DONTROUTE    5
#define SO_BROADCAST    6
#define SO_SNDBUF       7
#define SO_RCVBUF       8
#define SO_KEEPALIVE    9
#define SO_OOBINLINE    10
#define SO_NO_CHECK     11
#define SO_PRIORITY     12
#define SO_LINGER       13
#define SO_BSDCOMPAT    14
#define SO_REUSEPORT    15
#define SO_PASSCRED     16
#define SO_PEERCRED     17
#define SO_RCVLOWAT     18
#define SO_SNDLOWAT     19
#define SO_ACCEPTCONN   30
#define SO_PEERSEC      31
#define SO_SNDBUFFORCE  32
#define SO_RCVBUFFORCE  33
#define SO_PROTOCOL     38
#define SO_DOMAIN       39
#endif

#ifndef SO_RCVTIMEO
#if LONG_MAX == 0x7fffffff
#define SO_RCVTIMEO     66
#define SO_SNDTIMEO     67
#else
#define SO_RCVTIMEO     20
#define SO_SNDTIMEO     21
#endif
#endif

#define SO_BINDTODEVICE 25

#ifndef SOL_SOCKET
#define SOL_SOCKET      1
#endif
#define SOL_IP          0

#define MSG_OOB       0x0001
#define MSG_PEEK      0x0002
#define MSG_DONTROUTE 0x0004
#define MSG_CTRUNC    0x0008
#define MSG_PROXY     0x0010
#define MSG_TRUNC     0x0020
#define MSG_DONTWAIT  0x0040
#define MSG_EOR       0x0080
#define MSG_WAITALL   0x0100
#define MSG_FIN       0x0200
#define MSG_SYN       0x0400
#define MSG_CONFIRM   0x0800
#define MSG_RST       0x1000
#define MSG_ERRQUEUE  0x2000
#define MSG_NOSIGNAL  0x4000
#define MSG_MORE      0x8000
#define MSG_WAITFORONE 0x10000
#define MSG_BATCH     0x40000
#define MSG_ZEROCOPY  0x4000000
#define MSG_FASTOPEN  0x20000000
#define MSG_CMSG_CLOEXEC 0x40000000

#define __CMSG_LEN(cmsg) (((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))
#define __CMSG_NEXT(cmsg) ((unsigned char *)(cmsg) + __CMSG_LEN(cmsg))
#define __MHDR_END(mhdr) ((unsigned char *)(mhdr)->msg_control + (mhdr)->msg_controllen)

#define CMSG_DATA(cmsg) ((unsigned char *) (((struct cmsghdr *)(cmsg)) + 1))
#define CMSG_NXTHDR(mhdr, cmsg) ((cmsg)->cmsg_len < sizeof (struct cmsghdr) || \
    __CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= __MHDR_END(mhdr) - (unsigned char *)(cmsg) \
    ? 0 : (struct cmsghdr *)__CMSG_NEXT(cmsg))
#define CMSG_FIRSTHDR(mhdr) ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)

#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) & (size_t) ~(sizeof (size_t) - 1))
#define CMSG_SPACE(len) (CMSG_ALIGN (len) + CMSG_ALIGN (sizeof (struct cmsghdr)))
#define CMSG_LEN(len)   (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))

#define SCM_RIGHTS      0x01
#define SCM_CREDENTIALS 0x02

struct sockaddr {
    sa_family_t sa_family;
    char sa_data[14];
};

struct sockaddr_storage {
    sa_family_t ss_family;
    char __ss_padding[128 - sizeof(long) - sizeof(sa_family_t)];
    unsigned long __ss_align;
};

int socket(int, int, int);
int socketpair(int, int, int, int [2]);

int shutdown(int, int);

int bind(int, const struct sockaddr *, socklen_t);
int connect(int, const struct sockaddr *, socklen_t);
int listen(int, int);
int accept(int, struct sockaddr *__restrict, socklen_t *__restrict);
int accept4(int, struct sockaddr *__restrict, socklen_t *__restrict, int);

int getsockname(int, struct sockaddr *__restrict, socklen_t *__restrict);
int getpeername(int, struct sockaddr *__restrict, socklen_t *__restrict);

ssize_t send(int, const void *, size_t, int);
ssize_t recv(int, void *, size_t, int);
ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *, socklen_t);
ssize_t recvfrom(int, void *__restrict, size_t, int, struct sockaddr *__restrict, socklen_t *__restrict);
ssize_t sendmsg(int, const struct msghdr *, int);
ssize_t recvmsg(int, struct msghdr *, int);

int getsockopt(int, int, int, void *__restrict, socklen_t *__restrict);
int setsockopt(int, int, int, const void *, socklen_t);

int sockatmark(int);

#ifdef __cplusplus
}
#endif

#endif /* !_ADAPT_SYS_SOCKET_H */