1 files changed, 183 insertions, 0 deletions
diff --git a/Userland/Libraries/LibC/sys/socket.h b/Userland/Libraries/LibC/sys/socket.h
new file mode 100644
index 0000000000..c5a5943041
--- /dev/null
+++ b/Userland/Libraries/LibC/sys/socket.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * 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.
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include <bits/stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/un.h>
+
+__BEGIN_DECLS
+
+#define AF_MASK 0xff
+#define AF_UNSPEC 0
+#define AF_LOCAL 1
+#define AF_UNIX AF_LOCAL
+#define AF_INET 2
+#define AF_MAX 3
+#define PF_LOCAL AF_LOCAL
+#define PF_UNIX PF_LOCAL
+#define PF_INET AF_INET
+#define PF_UNSPEC AF_UNSPEC
+#define PF_MAX AF_MAX
+
+#define SOCK_TYPE_MASK 0xff
+#define SOCK_STREAM 1
+#define SOCK_DGRAM 2
+#define SOCK_RAW 3
+#define SOCK_NONBLOCK 04000
+#define SOCK_CLOEXEC 02000000
+
+#define SHUT_RD 1
+#define SHUT_WR 2
+#define SHUT_RDWR 3
+
+#define IPPROTO_IP 0
+#define IPPROTO_ICMP 1
+#define IPPROTO_TCP 6
+#define IPPROTO_UDP 17
+
+#define MSG_TRUNC 0x1
+#define MSG_CTRUNC 0x2
+#define MSG_DONTWAIT 0x40
+
+typedef uint16_t sa_family_t;
+
+struct cmsghdr {
+    socklen_t cmsg_len;
+    int cmsg_level;
+    int cmsg_type;
+};
+
+struct msghdr {
+    void* msg_name;
+    socklen_t msg_namelen;
+    struct iovec* msg_iov;
+    int msg_iovlen;
+    void* msg_control;
+    socklen_t msg_controllen;
+    int msg_flags;
+};
+
+struct sockaddr {
+    sa_family_t sa_family;
+    char sa_data[14];
+};
+
+struct ucred {
+    pid_t pid;
+    uid_t uid;
+    gid_t gid;
+};
+
+#define SOL_SOCKET 1
+#define SOMAXCONN 128
+
+enum {
+    SO_RCVTIMEO,
+    SO_SNDTIMEO,
+    SO_TYPE,
+    SO_ERROR,
+    SO_PEERCRED,
+    SO_REUSEADDR,
+    SO_BINDTODEVICE,
+    SO_KEEPALIVE,
+    SO_TIMESTAMP,
+    SO_BROADCAST,
+};
+#define SO_RCVTIMEO SO_RCVTIMEO
+#define SO_SNDTIMEO SO_SNDTIMEO
+#define SO_TYPE SO_TYPE
+#define SO_ERROR SO_ERROR
+#define SO_PEERCRED SO_PEERCRED
+#define SO_REUSEADDR SO_REUSEADDR
+#define SO_BINDTODEVICE SO_BINDTODEVICE
+#define SO_KEEPALIVE SO_KEEPALIVE
+#define SO_TIMESTAMP SO_TIMESTAMP
+#define SO_BROADCAST SO_BROADCAST
+
+enum {
+    SCM_TIMESTAMP,
+    SCM_RIGHTS,
+};
+#define SCM_TIMESTAMP SCM_TIMESTAMP
+#define SCM_RIGHTS SCM_RIGHTS
+
+struct sockaddr_storage {
+    sa_family_t ss_family;
+    union {
+        char data[sizeof(struct sockaddr_un)];
+        void* alignment;
+    };
+};
+
+int socket(int domain, int type, int protocol);
+int bind(int sockfd, const struct sockaddr* addr, socklen_t);
+int listen(int sockfd, int backlog);
+int accept(int sockfd, struct sockaddr*, socklen_t*);
+int connect(int sockfd, const struct sockaddr*, socklen_t);
+int shutdown(int sockfd, int how);
+ssize_t send(int sockfd, const void*, size_t, int flags);
+ssize_t sendmsg(int sockfd, const struct msghdr*, int flags);
+ssize_t sendto(int sockfd, const void*, size_t, int flags, const struct sockaddr*, socklen_t);
+ssize_t recv(int sockfd, void*, size_t, int flags);
+ssize_t recvmsg(int sockfd, struct msghdr*, int flags);
+ssize_t recvfrom(int sockfd, void*, size_t, int flags, struct sockaddr*, socklen_t*);
+int getsockopt(int sockfd, int level, int option, void*, socklen_t*);
+int setsockopt(int sockfd, int level, int option, const void*, socklen_t);
+int getsockname(int sockfd, struct sockaddr*, socklen_t*);
+int getpeername(int sockfd, struct sockaddr*, socklen_t*);
+int sendfd(int sockfd, int fd);
+int recvfd(int sockfd);
+
+// These three are non-POSIX, but common:
+#define CMSG_ALIGN(x) (((x) + sizeof(void*) - 1) & ~(sizeof(void*) - 1))
+#define CMSG_SPACE(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + CMSG_ALIGN(x))
+#define CMSG_LEN(x) (CMSG_ALIGN(sizeof(struct cmsghdr)) + (x))
+
+static inline struct cmsghdr* CMSG_FIRSTHDR(struct msghdr* msg)
+{
+    if (msg->msg_controllen < sizeof(struct cmsghdr))
+        return 0;
+    return (struct cmsghdr*)msg->msg_control;
+}
+
+static inline struct cmsghdr* CMSG_NXTHDR(struct msghdr* msg, struct cmsghdr* cmsg)
+{
+    struct cmsghdr* next = (struct cmsghdr*)((char*)cmsg + CMSG_ALIGN(cmsg->cmsg_len));
+    unsigned offset = (char*)next - (char*)msg->msg_control;
+    if (msg->msg_controllen < offset + sizeof(struct cmsghdr))
+        return NULL;
+    return next;
+}
+
+static inline void* CMSG_DATA(struct cmsghdr* cmsg)
+{
+    return (void*)(cmsg + 1);
+}
+
+__END_DECLS