1 /* 2 * Copyright 2002-2007, Haiku Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _SYS_SOCKET_H 6 #define _SYS_SOCKET_H 7 8 9 #include <stdint.h> 10 #include <sys/param.h> 11 #include <sys/types.h> 12 #include <sys/uio.h> 13 14 15 typedef uint32_t socklen_t; 16 17 /* Address families */ 18 #define AF_UNSPEC 0 19 #define AF_INET 1 20 #define AF_APPLETALK 2 21 #define AF_ROUTE 3 22 #define AF_LINK 4 23 #define AF_INET6 5 24 #define AF_DLI 6 25 #define AF_IPX 7 26 #define AF_NOTIFY 8 27 #define AF_LOCAL 9 28 #define AF_UNIX AF_LOCAL 29 #define AF_MAX 10 30 31 /* Protocol families, deprecated */ 32 #define PF_UNSPEC AF_UNSPEC 33 #define PF_INET AF_INET 34 #define PF_ROUTE AF_ROUTE 35 #define PF_LINK AF_LINK 36 #define PF_INET6 AF_INET6 37 #define PF_LOCAL AF_LOCAL 38 #define PF_UNIX AF_UNIX 39 40 /* Socket types */ 41 #define SOCK_STREAM 1 42 #define SOCK_DGRAM 2 43 #define SOCK_RAW 3 44 #define SOCK_MISC 255 45 46 /* Socket options for SOL_SOCKET level */ 47 #define SOL_SOCKET -1 48 49 #define SO_ACCEPTCONN 0x00000001 /* socket has had listen() */ 50 #define SO_BROADCAST 0x00000002 /* permit sending of broadcast msgs */ 51 #define SO_DEBUG 0x00000004 /* turn on debugging info recording */ 52 #define SO_DONTROUTE 0x00000008 /* just use interface addresses */ 53 #define SO_KEEPALIVE 0x00000010 /* keep connections alive */ 54 #define SO_OOBINLINE 0x00000020 /* leave received OOB data in line */ 55 #define SO_REUSEADDR 0x00000040 /* allow local address reuse */ 56 #define SO_REUSEPORT 0x00000080 /* allow local address & port reuse */ 57 #define SO_USELOOPBACK 0x00000100 /* bypass hardware when possible */ 58 #define SO_LINGER 0x00000200 /* linger on close if data present */ 59 60 #define SO_SNDBUF 0x40000001 /* send buffer size */ 61 #define SO_SNDLOWAT 0x40000002 /* send low-water mark */ 62 #define SO_SNDTIMEO 0x40000003 /* send timeout */ 63 #define SO_RCVBUF 0x40000004 /* receive buffer size */ 64 #define SO_RCVLOWAT 0x40000005 /* receive low-water mark */ 65 #define SO_RCVTIMEO 0x40000006 /* receive timeout */ 66 #define SO_ERROR 0x40000007 /* get error status and clear */ 67 #define SO_TYPE 0x40000008 /* get socket type */ 68 #define SO_NONBLOCK 0x40000009 69 #define SO_BINDTODEVICE 0x4000000a 70 #define SO_PEERCRED 0x4000000b /* get peer credentials, param: ucred */ 71 72 /* Shutdown options */ 73 #define SHUT_RD 0 74 #define SHUT_WR 1 75 #define SHUT_RDWR 2 76 77 #define SOMAXCONN 32 /* Max listen queue for a socket */ 78 79 struct linger { 80 int l_onoff; 81 int l_linger; 82 }; 83 84 struct sockaddr { 85 uint8_t sa_len; 86 uint8_t sa_family; 87 uint8_t sa_data[30]; 88 }; 89 90 struct sockaddr_storage { 91 uint8_t ss_len; /* total length */ 92 uint8_t ss_family; /* address family */ 93 uint8_t __ss_pad1[6]; /* align to quad */ 94 uint64_t __ss_pad2; /* force alignment to 64 bit */ 95 uint8_t __ss_pad3[112]; /* pad to a total of 128 bytes */ 96 }; 97 98 struct msghdr { 99 void *msg_name; /* address we're using (optional) */ 100 socklen_t msg_namelen; /* length of address */ 101 struct iovec *msg_iov; /* scatter/gather array we'll use */ 102 int msg_iovlen; /* # elements in msg_iov */ 103 void *msg_control; /* extra data */ 104 socklen_t msg_controllen; /* length of extra data */ 105 int msg_flags; /* flags */ 106 }; 107 108 /* Flags for the msghdr.msg_flags field */ 109 #define MSG_OOB 0x0001 /* process out-of-band data */ 110 #define MSG_PEEK 0x0002 /* peek at incoming message */ 111 #define MSG_DONTROUTE 0x0004 /* send without using routing tables */ 112 #define MSG_EOR 0x0008 /* data completes record */ 113 #define MSG_TRUNC 0x0010 /* data discarded before delivery */ 114 #define MSG_CTRUNC 0x0020 /* control data lost before delivery */ 115 #define MSG_WAITALL 0x0040 /* wait for full request or error */ 116 #define MSG_DONTWAIT 0x0080 /* this message should be nonblocking */ 117 #define MSG_BCAST 0x0100 /* this message rec'd as broadcast */ 118 #define MSG_MCAST 0x0200 /* this message rec'd as multicast */ 119 #define MSG_EOF 0x0400 /* data completes connection */ 120 121 struct cmsghdr { 122 socklen_t cmsg_len; 123 int cmsg_level; 124 int cmsg_type; 125 /* data follows */ 126 }; 127 128 /* cmsghdr access macros */ 129 #define CMSG_DATA(cmsg) ((unsigned char *)(cmsg) \ 130 + _ALIGN(sizeof(struct cmsghdr))) 131 #define CMSG_NXTHDR(mhdr, cmsg) \ 132 (((char *)(cmsg) + _ALIGN((cmsg)->cmsg_len) \ 133 + _ALIGN(sizeof(struct cmsghdr)) \ 134 > (char *)(mhdr)->msg_control + (mhdr)->msg_controllen) \ 135 ? (struct cmsghdr *)NULL \ 136 : (struct cmsghdr *)((char *)(cmsg) + _ALIGN((cmsg)->cmsg_len))) 137 #define CMSG_FIRSTHDR(mhdr) \ 138 ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) \ 139 ? (struct cmsghdr *)(mhdr)->msg_control \ 140 : (struct cmsghdr *)NULL) 141 #define CMSG_SPACE(len) (_ALIGN(sizeof(struct cmsghdr)) + _ALIGN(len)) 142 #define CMSG_LEN(len) (_ALIGN(sizeof(struct cmsghdr)) + (len)) 143 #define CMSG_ALIGN(len) _ALIGN(len) 144 145 /* SOL_SOCKET control message types */ 146 #define SCM_RIGHTS 0x01 147 148 /* parameter to SO_PEERCRED */ 149 struct ucred { 150 pid_t pid; /* PID of sender */ 151 uid_t uid; /* UID of sender */ 152 gid_t gid; /* GID of sender */ 153 }; 154 155 156 #if __cplusplus 157 extern "C" { 158 #endif 159 160 int accept(int socket, struct sockaddr *address, socklen_t *_addressLength); 161 int bind(int socket, const struct sockaddr *address, 162 socklen_t addressLength); 163 int connect(int socket, const struct sockaddr *address, 164 socklen_t addressLength); 165 int getpeername(int socket, struct sockaddr *address, 166 socklen_t *_addressLength); 167 int getsockname(int socket, struct sockaddr *address, 168 socklen_t *_addressLength); 169 int getsockopt(int socket, int level, int option, void *value, 170 socklen_t *_length); 171 int listen(int socket, int backlog); 172 ssize_t recv(int socket, void *buffer, size_t length, int flags); 173 ssize_t recvfrom(int socket, void *buffer, size_t bufferLength, int flags, 174 struct sockaddr *address, socklen_t *_addressLength); 175 ssize_t recvmsg(int socket, struct msghdr *message, int flags); 176 ssize_t send(int socket, const void *buffer, size_t length, int flags); 177 ssize_t sendmsg(int socket, const struct msghdr *message, int flags); 178 ssize_t sendto(int socket, const void *message, size_t length, int flags, 179 const struct sockaddr *address, socklen_t addressLength); 180 int setsockopt(int socket, int level, int option, const void *value, 181 socklen_t length); 182 int shutdown(int socket, int how); 183 int socket(int domain, int type, int protocol); 184 int sockatmark(int socket); 185 int socketpair(int domain, int type, int protocol, int socketVector[2]); 186 187 #if __cplusplus 188 } 189 #endif 190 191 #endif /* _SYS_SOCKET_H */ 192