more networking standard library code
This commit is contained in:
Andrew Kelley
parent
66ed7a5eb5
commit
f2bc5ccbc2
164
std/linux.zig
164
std/linux.zig
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@ -80,9 +80,9 @@ const SIG_BLOCK = 0;
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const SIG_UNBLOCK = 1;
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const SIG_SETMASK = 2;
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const SOCK_STREAM = 1;
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const SOCK_DGRAM = 2;
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const SOCK_RAW = 3;
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pub const SOCK_STREAM = 1;
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pub const SOCK_DGRAM = 2;
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pub const SOCK_RAW = 3;
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pub const SOCK_RDM = 4;
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pub const SOCK_SEQPACKET = 5;
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pub const SOCK_DCCP = 6;
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@ -91,6 +91,135 @@ pub const SOCK_CLOEXEC = 0o2000000;
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pub const SOCK_NONBLOCK = 0o4000;
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pub const PROTO_ip = 0o000;
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pub const PROTO_icmp = 0o001;
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pub const PROTO_igmp = 0o002;
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pub const PROTO_ggp = 0o003;
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pub const PROTO_ipencap = 0o004;
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pub const PROTO_st = 0o005;
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pub const PROTO_tcp = 0o006;
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pub const PROTO_egp = 0o010;
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pub const PROTO_pup = 0o014;
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pub const PROTO_udp = 0o021;
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pub const PROTO_hmp = 0o024;
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pub const PROTO_xns_idp = 0o026;
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pub const PROTO_rdp = 0o033;
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pub const PROTO_iso_tp4 = 0o035;
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pub const PROTO_xtp = 0o044;
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pub const PROTO_ddp = 0o045;
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pub const PROTO_idpr_cmtp = 0o046;
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pub const PROTO_ipv6 = 0o051;
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pub const PROTO_ipv6_route = 0o053;
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pub const PROTO_ipv6_frag = 0o054;
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pub const PROTO_idrp = 0o055;
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pub const PROTO_rsvp = 0o056;
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pub const PROTO_gre = 0o057;
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pub const PROTO_esp = 0o062;
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pub const PROTO_ah = 0o063;
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pub const PROTO_skip = 0o071;
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pub const PROTO_ipv6_icmp = 0o072;
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pub const PROTO_ipv6_nonxt = 0o073;
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pub const PROTO_ipv6_opts = 0o074;
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pub const PROTO_rspf = 0o111;
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pub const PROTO_vmtp = 0o121;
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pub const PROTO_ospf = 0o131;
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pub const PROTO_ipip = 0o136;
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pub const PROTO_encap = 0o142;
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pub const PROTO_pim = 0o147;
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pub const PROTO_raw = 0o377;
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pub const PF_UNSPEC = 0;
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pub const PF_LOCAL = 1;
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pub const PF_UNIX = PF_LOCAL;
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pub const PF_FILE = PF_LOCAL;
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pub const PF_INET = 2;
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pub const PF_AX25 = 3;
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pub const PF_IPX = 4;
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pub const PF_APPLETALK = 5;
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pub const PF_NETROM = 6;
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pub const PF_BRIDGE = 7;
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pub const PF_ATMPVC = 8;
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pub const PF_X25 = 9;
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pub const PF_INET6 = 10;
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pub const PF_ROSE = 11;
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pub const PF_DECnet = 12;
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pub const PF_NETBEUI = 13;
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pub const PF_SECURITY = 14;
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pub const PF_KEY = 15;
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pub const PF_NETLINK = 16;
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pub const PF_ROUTE = PF_NETLINK;
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pub const PF_PACKET = 17;
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pub const PF_ASH = 18;
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pub const PF_ECONET = 19;
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pub const PF_ATMSVC = 20;
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pub const PF_RDS = 21;
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pub const PF_SNA = 22;
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pub const PF_IRDA = 23;
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pub const PF_PPPOX = 24;
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pub const PF_WANPIPE = 25;
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pub const PF_LLC = 26;
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pub const PF_IB = 27;
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pub const PF_MPLS = 28;
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pub const PF_CAN = 29;
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pub const PF_TIPC = 30;
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pub const PF_BLUETOOTH = 31;
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pub const PF_IUCV = 32;
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pub const PF_RXRPC = 33;
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pub const PF_ISDN = 34;
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pub const PF_PHONET = 35;
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pub const PF_IEEE802154 = 36;
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pub const PF_CAIF = 37;
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pub const PF_ALG = 38;
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pub const PF_NFC = 39;
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pub const PF_VSOCK = 40;
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pub const PF_MAX = 41;
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pub const AF_UNSPEC = PF_UNSPEC;
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pub const AF_LOCAL = PF_LOCAL;
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pub const AF_UNIX = AF_LOCAL;
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pub const AF_FILE = AF_LOCAL;
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pub const AF_INET = PF_INET;
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pub const AF_AX25 = PF_AX25;
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pub const AF_IPX = PF_IPX;
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pub const AF_APPLETALK = PF_APPLETALK;
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pub const AF_NETROM = PF_NETROM;
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pub const AF_BRIDGE = PF_BRIDGE;
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pub const AF_ATMPVC = PF_ATMPVC;
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pub const AF_X25 = PF_X25;
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pub const AF_INET6 = PF_INET6;
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pub const AF_ROSE = PF_ROSE;
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pub const AF_DECnet = PF_DECnet;
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pub const AF_NETBEUI = PF_NETBEUI;
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pub const AF_SECURITY = PF_SECURITY;
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pub const AF_KEY = PF_KEY;
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pub const AF_NETLINK = PF_NETLINK;
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pub const AF_ROUTE = PF_ROUTE;
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pub const AF_PACKET = PF_PACKET;
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pub const AF_ASH = PF_ASH;
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pub const AF_ECONET = PF_ECONET;
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pub const AF_ATMSVC = PF_ATMSVC;
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pub const AF_RDS = PF_RDS;
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pub const AF_SNA = PF_SNA;
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pub const AF_IRDA = PF_IRDA;
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pub const AF_PPPOX = PF_PPPOX;
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pub const AF_WANPIPE = PF_WANPIPE;
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pub const AF_LLC = PF_LLC;
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pub const AF_IB = PF_IB;
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pub const AF_MPLS = PF_MPLS;
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pub const AF_CAN = PF_CAN;
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pub const AF_TIPC = PF_TIPC;
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pub const AF_BLUETOOTH = PF_BLUETOOTH;
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pub const AF_IUCV = PF_IUCV;
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pub const AF_RXRPC = PF_RXRPC;
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pub const AF_ISDN = PF_ISDN;
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pub const AF_PHONET = PF_PHONET;
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pub const AF_IEEE802154 = PF_IEEE802154;
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pub const AF_CAIF = PF_CAIF;
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pub const AF_ALG = PF_ALG;
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pub const AF_NFC = PF_NFC;
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pub const AF_VSOCK = PF_VSOCK;
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pub const AF_MAX = PF_MAX;
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/// Get the errno from a syscall return value, or 0 for no error.
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pub fn get_errno(r: isize) -> isize {
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if (r > -4096) -r else 0
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@ -185,10 +314,35 @@ fn restore_signals(set: &sigset_t) {
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pub type sa_family_t = u16;
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pub type socklen_t = u32;
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pub type in_addr_t = u32;
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export struct in_addr {
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s_addr: in_addr_t,
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}
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export struct sockaddr {
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sa_family: sa_family_t,
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sa_data: [14]u8,
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family: sa_family_t,
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port: u16,
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data: [12]u8,
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}
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export struct sockaddr_in {
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family: sa_family_t,
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port: u16,
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addr: in_addr,
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zero: [8]u8,
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}
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export struct sockaddr_in6 {
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family: sa_family_t,
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port: u16,
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flowinfo: u32,
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addr: in6_addr,
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scope_id: u32,
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}
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export struct in6_addr {
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addr: [16]u8,
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}
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export struct iovec {
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56
std/net.zig
56
std/net.zig
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@ -1,4 +1,58 @@
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const linux = @import("linux.zig");
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const errno = @import("errno.zig");
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pub fn open(hostname: []const u8) -> %void {
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pub error SigInterrupt;
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pub error Unexpected;
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pub error Io;
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struct Connection {
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socket_fd: i32,
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pub fn close(c: Connection) -> %void {
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switch (linux.get_errno(linux.close(c.socket_fd))) {
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0 => return,
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errno.EBADF => unreachable{},
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errno.EINTR => return error.SigInterrupt,
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errno.EIO => return error.Io,
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else => return error.Unexpected,
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}
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}
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}
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struct Address {
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addr: linux.sockaddr,
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}
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pub fn lookup(hostname: []const u8, out_addrs: []Address) -> %[]Address {
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unreachable{} // TODO
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}
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pub fn connect_addr(addr: &Address, port: u16) -> %Connection {
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addr.addr.port = port;
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const socket_ret = linux.socket(linux.PF_INET, linux.SOCK_STREAM, linux.PROTO_tcp);
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const socket_err = linux.get_errno(socket_ret);
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if (socket_err > 0) {
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// TODO figure out possible errors from socket()
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return error.Unexpected;
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}
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const socket_fd = i32(socket_ret);
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const connect_err = linux.get_errno(linux.connect(socket_fd, &addr.addr, @sizeof(linux.sockaddr)));
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if (connect_err > 0) {
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// TODO figure out possible errors from connect()
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return error.Unexpected;
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}
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return Connection {
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.socket_fd = socket_fd,
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};
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}
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pub fn connect(hostname: []const u8, port: u16) -> %Connection {
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var addrs_buf: [1]Address = undefined;
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const addrs_slice = %return lookup(hostname, addrs_buf);
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const main_addr = &addrs_slice[0];
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return connect_addr(main_addr, port);
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}
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