beginnings of network standard library code

CMakeLists.txt

@@ -203,6 +203,7 @@ install(FILES "${CMAKE_SOURCE_DIR}/std/test_runner.zig" DESTINATION "${ZIG_STD_D
 install(FILES "${CMAKE_SOURCE_DIR}/std/test_runner_libc.zig" DESTINATION "${ZIG_STD_DEST}")
 install(FILES "${CMAKE_SOURCE_DIR}/std/test_runner_nolibc.zig" DESTINATION "${ZIG_STD_DEST}")
 install(FILES "${CMAKE_SOURCE_DIR}/std/io.zig" DESTINATION "${ZIG_STD_DEST}")
+install(FILES "${CMAKE_SOURCE_DIR}/std/net.zig" DESTINATION "${ZIG_STD_DEST}")
 install(FILES "${CMAKE_SOURCE_DIR}/std/os.zig" DESTINATION "${ZIG_STD_DEST}")
 install(FILES "${CMAKE_SOURCE_DIR}/std/str.zig" DESTINATION "${ZIG_STD_DEST}")
 install(FILES "${CMAKE_SOURCE_DIR}/std/linux.zig" DESTINATION "${ZIG_STD_DEST}")

src/analyze.cpp

@@ -1728,25 +1728,28 @@ static void add_global_const_expr(CodeGen *g, AstNode *expr_node) {
 }
 
 static bool num_lit_fits_in_other_type(CodeGen *g, AstNode *literal_node, TypeTableEntry *other_type) {
-    if (other_type->id == TypeTableEntryIdInvalid) {
+    TypeTableEntry *other_type_underlying = get_underlying_type(other_type);
+
+    if (other_type_underlying->id == TypeTableEntryIdInvalid) {
         return false;
     }
+
     Expr *expr = get_resolved_expr(literal_node);
     ConstExprValue *const_val = &expr->const_val;
     assert(const_val->ok);
-    if (other_type->id == TypeTableEntryIdFloat) {
+    if (other_type_underlying->id == TypeTableEntryIdFloat) {
         return true;
-    } else if (other_type->id == TypeTableEntryIdInt &&
+    } else if (other_type_underlying->id == TypeTableEntryIdInt &&
                const_val->data.x_bignum.kind == BigNumKindInt)
     {
-        if (bignum_fits_in_bits(&const_val->data.x_bignum, other_type->data.integral.bit_count,
+        if (bignum_fits_in_bits(&const_val->data.x_bignum, other_type_underlying->data.integral.bit_count,
-                    other_type->data.integral.is_signed))
+                    other_type_underlying->data.integral.is_signed))
         {
             return true;
         }
-    } else if ((other_type->id == TypeTableEntryIdNumLitFloat &&
+    } else if ((other_type_underlying->id == TypeTableEntryIdNumLitFloat &&
                 const_val->data.x_bignum.kind == BigNumKindFloat) ||
-               (other_type->id == TypeTableEntryIdNumLitInt &&
+               (other_type_underlying->id == TypeTableEntryIdNumLitInt &&
                 const_val->data.x_bignum.kind == BigNumKindInt))
     {
         return true;
@@ -4032,9 +4035,11 @@ static TypeTableEntry *analyze_cast_expr(CodeGen *g, ImportTableEntry *import, B
     AstNode *expr_node = node->data.fn_call_expr.params.at(0);
     TypeTableEntry *wanted_type = resolve_type(g, fn_ref_expr);
     TypeTableEntry *actual_type = analyze_expression(g, import, context, nullptr, expr_node);
+    TypeTableEntry *wanted_type_canon = get_underlying_type(wanted_type);
+    TypeTableEntry *actual_type_canon = get_underlying_type(actual_type);
 
-    if (wanted_type->id == TypeTableEntryIdInvalid ||
+    if (wanted_type_canon->id == TypeTableEntryIdInvalid ||
-        actual_type->id == TypeTableEntryIdInvalid)
+        actual_type_canon->id == TypeTableEntryIdInvalid)
     {
         return g->builtin_types.entry_invalid;
     }
@@ -4045,46 +4050,46 @@ static TypeTableEntry *analyze_cast_expr(CodeGen *g, ImportTableEntry *import, B
     }
 
     // explicit cast from bool to int
-    if (wanted_type->id == TypeTableEntryIdInt &&
+    if (wanted_type_canon->id == TypeTableEntryIdInt &&
-        actual_type->id == TypeTableEntryIdBool)
+        actual_type_canon->id == TypeTableEntryIdBool)
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpBoolToInt, false);
     }
 
     // explicit cast from pointer to isize or usize
-    if ((wanted_type == g->builtin_types.entry_isize || wanted_type == g->builtin_types.entry_usize) &&
+    if ((wanted_type_canon == g->builtin_types.entry_isize || wanted_type_canon == g->builtin_types.entry_usize) &&
-        actual_type->id == TypeTableEntryIdPointer)
+        actual_type_canon->id == TypeTableEntryIdPointer)
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpPtrToInt, false);
     }
 
 
     // explicit cast from isize or usize to pointer
-    if (wanted_type->id == TypeTableEntryIdPointer &&
+    if (wanted_type_canon->id == TypeTableEntryIdPointer &&
-        (actual_type == g->builtin_types.entry_isize || actual_type == g->builtin_types.entry_usize))
+        (actual_type_canon == g->builtin_types.entry_isize || actual_type_canon == g->builtin_types.entry_usize))
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpIntToPtr, false);
     }
 
     // explicit widening or shortening cast
-    if ((wanted_type->id == TypeTableEntryIdInt &&
+    if ((wanted_type_canon->id == TypeTableEntryIdInt &&
-        actual_type->id == TypeTableEntryIdInt) ||
+        actual_type_canon->id == TypeTableEntryIdInt) ||
-        (wanted_type->id == TypeTableEntryIdFloat &&
+        (wanted_type_canon->id == TypeTableEntryIdFloat &&
-        actual_type->id == TypeTableEntryIdFloat))
+        actual_type_canon->id == TypeTableEntryIdFloat))
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpWidenOrShorten, false);
     }
 
     // explicit cast from int to float
-    if (wanted_type->id == TypeTableEntryIdFloat &&
+    if (wanted_type_canon->id == TypeTableEntryIdFloat &&
-        actual_type->id == TypeTableEntryIdInt)
+        actual_type_canon->id == TypeTableEntryIdInt)
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpIntToFloat, false);
     }
 
     // explicit cast from float to int
-    if (wanted_type->id == TypeTableEntryIdInt &&
+    if (wanted_type_canon->id == TypeTableEntryIdInt &&
-        actual_type->id == TypeTableEntryIdFloat)
+        actual_type_canon->id == TypeTableEntryIdFloat)
     {
         return resolve_cast(g, context, node, expr_node, wanted_type, CastOpFloatToInt, false);
     }
@@ -4164,17 +4169,17 @@ static TypeTableEntry *analyze_cast_expr(CodeGen *g, ImportTableEntry *import, B
     if (actual_type->id == TypeTableEntryIdNumLitFloat ||
         actual_type->id == TypeTableEntryIdNumLitInt)
     {
-        if (num_lit_fits_in_other_type(g, expr_node, wanted_type)) {
+        if (num_lit_fits_in_other_type(g, expr_node, wanted_type_canon)) {
             CastOp op;
             if ((actual_type->id == TypeTableEntryIdNumLitFloat &&
-                 wanted_type->id == TypeTableEntryIdFloat) ||
+                 wanted_type_canon->id == TypeTableEntryIdFloat) ||
                 (actual_type->id == TypeTableEntryIdNumLitInt &&
-                 wanted_type->id == TypeTableEntryIdInt))
+                 wanted_type_canon->id == TypeTableEntryIdInt))
             {
                 op = CastOpNoop;
-            } else if (wanted_type->id == TypeTableEntryIdInt) {
+            } else if (wanted_type_canon->id == TypeTableEntryIdInt) {
                 op = CastOpFloatToInt;
-            } else if (wanted_type->id == TypeTableEntryIdFloat) {
+            } else if (wanted_type_canon->id == TypeTableEntryIdFloat) {
                 op = CastOpIntToFloat;
             } else {
                 zig_unreachable();

src/codegen.cpp

@@ -594,10 +594,14 @@ static LLVMValueRef gen_enum_value_expr(CodeGen *g, AstNode *node, TypeTableEntr
     }
 }
 
-static LLVMValueRef gen_widen_or_shorten(CodeGen *g, AstNode *source_node, TypeTableEntry *actual_type,
+static LLVMValueRef gen_widen_or_shorten(CodeGen *g, AstNode *source_node, TypeTableEntry *actual_type_non_canon,
-        TypeTableEntry *wanted_type, LLVMValueRef expr_val)
+        TypeTableEntry *wanted_type_non_canon, LLVMValueRef expr_val)
 {
+    TypeTableEntry *actual_type = get_underlying_type(actual_type_non_canon);
+    TypeTableEntry *wanted_type = get_underlying_type(wanted_type_non_canon);
+
     assert(actual_type->id == wanted_type->id);
+
     uint64_t actual_bits;
     uint64_t wanted_bits;
     if (actual_type->id == TypeTableEntryIdFloat) {

std/index.zig

@@ -3,6 +3,7 @@ pub const io = @import("io.zig");
 pub const os = @import("os.zig");
 pub const math = @import("math.zig");
 pub const str = @import("str.zig");
+pub const net = @import("net.zig");
 
 pub fn assert(b: bool) {
     if (!b) unreachable{}

std/linux.zig

@@ -3,6 +3,7 @@ const arch = switch (@compile_var("arch")) {
     i386 => @import("linux_i386.zig"),
     else => unreachable{},
 };
+const errno = @import("errno.zig");
 
 pub const MMAP_PROT_NONE =  0;
 pub const MMAP_PROT_READ =  1;
@@ -79,6 +80,22 @@ const SIG_BLOCK   = 0;
 const SIG_UNBLOCK = 1;
 const SIG_SETMASK = 2;
 
+const SOCK_STREAM = 1;
+const SOCK_DGRAM = 2;
+const SOCK_RAW = 3;
+pub const SOCK_RDM = 4;
+pub const SOCK_SEQPACKET = 5;
+pub const SOCK_DCCP = 6;
+pub const SOCK_PACKET = 10;
+pub const SOCK_CLOEXEC = 0o2000000;
+pub const SOCK_NONBLOCK = 0o4000;
+
+
+/// Get the errno from a syscall return value, or 0 for no error.
+pub fn get_errno(r: isize) -> isize {
+    if (r > -4096) -r else 0
+}
+
 pub fn mmap(address: ?&u8, length: isize, prot: isize, flags: isize, fd: isize, offset: isize) -> isize {
     // TODO ability to cast maybe pointer to isize
     const addr = if (const unwrapped ?= address) isize(unwrapped) else 0;
@@ -164,3 +181,83 @@ fn block_app_signals(set: &sigset_t) {
 fn restore_signals(set: &sigset_t) {
     arch.syscall4(arch.SYS_rt_sigprocmask, SIG_SETMASK, isize(set), 0, NSIG/8);
 }
+
+
+pub type sa_family_t = u16;
+pub type socklen_t = u32;
+
+export struct sockaddr {
+    sa_family: sa_family_t,
+    sa_data: [14]u8,
+}
+
+export struct iovec {
+    iov_base: &u8,
+    iov_len: usize,
+}
+
+pub fn getsockname(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t) -> isize {
+    arch.syscall3(arch.SYS_getsockname, fd, isize(addr), isize(len))
+}
+
+pub fn getpeername(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t) -> isize {
+    arch.syscall3(arch.SYS_getpeername, fd, isize(addr), isize(len))
+}
+
+pub fn socket(domain: i32, socket_type: i32, protocol: i32) -> isize {
+    arch.syscall3(arch.SYS_socket, domain, socket_type, protocol)
+}
+
+pub fn setsockopt(fd: i32, level: i32, optname: i32, optval: &const u8, optlen: socklen_t) -> isize {
+    arch.syscall5(arch.SYS_setsockopt, fd, level, optname, isize(optval), isize(optlen))
+}
+
+pub fn getsockopt(fd: i32, level: i32, optname: i32, noalias optval: &u8, noalias optlen: &socklen_t) -> isize {
+    arch.syscall5(arch.SYS_getsockopt, fd, level, optname, isize(optval), isize(optlen))
+}
+
+pub fn sendmsg(fd: i32, msg: &const arch.msghdr, flags: i32) -> isize {
+    arch.syscall3(arch.SYS_sendmsg, fd, isize(msg), flags)
+}
+
+pub fn connect(fd: i32, addr: &const sockaddr, len: socklen_t) -> isize {
+    arch.syscall3(arch.SYS_connect, fd, isize(addr), isize(len))
+}
+
+pub fn accept(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t) -> isize {
+    arch.syscall3(arch.SYS_accept, fd, isize(addr), isize(len))
+}
+
+pub fn recvmsg(fd: i32, msg: &arch.msghdr, flags: i32) -> isize {
+    arch.syscall3(arch.SYS_recvmsg, fd, isize(msg), flags)
+}
+
+pub fn recvfrom(fd: i32, noalias buf: &u8, len: isize, flags: i32,
+    noalias addr: &sockaddr, noalias alen: &socklen_t) -> isize
+{
+    arch.syscall6(arch.SYS_recvfrom, fd, isize(buf), len, flags, isize(addr), isize(alen))
+}
+
+pub fn shutdown(fd: i32, how: i32) -> isize {
+    arch.syscall2(arch.SYS_shutdown, fd, how)
+}
+
+pub fn bind(fd: i32, addr: &const sockaddr, len: socklen_t) {
+    arch.syscall3(arch.SYS_bind, fd, isize(addr), isize(len));
+}
+
+pub fn listen(fd: i32, backlog: i32) -> isize {
+    arch.syscall2(arch.SYS_listen, fd, backlog)
+}
+
+pub fn sendto(fd: i32, buf: &const u8, len: isize, flags: i32, addr: &const sockaddr, alen: socklen_t) -> isize {
+    arch.syscall6(arch.SYS_sendto, fd, isize(buf), len, flags, isize(addr), isize(alen))
+}
+
+pub fn socketpair(domain: i32, socket_type: i32, protocol: i32, fd: [2]i32) -> isize {
+    arch.syscall4(arch.SYS_socketpair, domain, socket_type, protocol, isize(&fd[0]))
+}
+
+pub fn accept4(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t, flags: i32) -> isize {
+    arch.syscall4(arch.SYS_accept4, fd, isize(addr), isize(len), flags)
+}

std/linux_i386.zig

@@ -1,3 +1,383 @@
+const linux = @import("linux.zig");
+const socklen_t = linux.socklen_t;
+const iovec = linux.iovec;
+
+pub const SYS_restart_syscall = 0;
+pub const SYS_exit = 1;
+pub const SYS_fork = 2;
+pub const SYS_read = 3;
+pub const SYS_write = 4;
+pub const SYS_open = 5;
+pub const SYS_close = 6;
+pub const SYS_waitpid = 7;
+pub const SYS_creat = 8;
+pub const SYS_link = 9;
+pub const SYS_unlink = 10;
+pub const SYS_execve = 11;
+pub const SYS_chdir = 12;
+pub const SYS_time = 13;
+pub const SYS_mknod = 14;
+pub const SYS_chmod = 15;
+pub const SYS_lchown = 16;
+pub const SYS_break = 17;
+pub const SYS_oldstat = 18;
+pub const SYS_lseek = 19;
+pub const SYS_getpid = 20;
+pub const SYS_mount = 21;
+pub const SYS_umount = 22;
+pub const SYS_setuid = 23;
+pub const SYS_getuid = 24;
+pub const SYS_stime = 25;
+pub const SYS_ptrace = 26;
+pub const SYS_alarm = 27;
+pub const SYS_oldfstat = 28;
+pub const SYS_pause = 29;
+pub const SYS_utime = 30;
+pub const SYS_stty = 31;
+pub const SYS_gtty = 32;
+pub const SYS_access = 33;
+pub const SYS_nice = 34;
+pub const SYS_ftime = 35;
+pub const SYS_sync = 36;
+pub const SYS_kill = 37;
+pub const SYS_rename = 38;
+pub const SYS_mkdir = 39;
+pub const SYS_rmdir = 40;
+pub const SYS_dup = 41;
+pub const SYS_pipe = 42;
+pub const SYS_times = 43;
+pub const SYS_prof = 44;
+pub const SYS_brk = 45;
+pub const SYS_setgid = 46;
+pub const SYS_getgid = 47;
+pub const SYS_signal = 48;
+pub const SYS_geteuid = 49;
+pub const SYS_getegid = 50;
+pub const SYS_acct = 51;
+pub const SYS_umount2 = 52;
+pub const SYS_lock = 53;
+pub const SYS_ioctl = 54;
+pub const SYS_fcntl = 55;
+pub const SYS_mpx = 56;
+pub const SYS_setpgid = 57;
+pub const SYS_ulimit = 58;
+pub const SYS_oldolduname = 59;
+pub const SYS_umask = 60;
+pub const SYS_chroot = 61;
+pub const SYS_ustat = 62;
+pub const SYS_dup2 = 63;
+pub const SYS_getppid = 64;
+pub const SYS_getpgrp = 65;
+pub const SYS_setsid = 66;
+pub const SYS_sigaction = 67;
+pub const SYS_sgetmask = 68;
+pub const SYS_ssetmask = 69;
+pub const SYS_setreuid = 70;
+pub const SYS_setregid = 71;
+pub const SYS_sigsuspend = 72;
+pub const SYS_sigpending = 73;
+pub const SYS_sethostname = 74;
+pub const SYS_setrlimit = 75;
+pub const SYS_getrlimit = 76;
+pub const SYS_getrusage = 77;
+pub const SYS_gettimeofday = 78;
+pub const SYS_settimeofday = 79;
+pub const SYS_getgroups = 80;
+pub const SYS_setgroups = 81;
+pub const SYS_select = 82;
+pub const SYS_symlink = 83;
+pub const SYS_oldlstat = 84;
+pub const SYS_readlink = 85;
+pub const SYS_uselib = 86;
+pub const SYS_swapon = 87;
+pub const SYS_reboot = 88;
+pub const SYS_readdir = 89;
+pub const SYS_mmap = 90;
+pub const SYS_munmap = 91;
+pub const SYS_truncate = 92;
+pub const SYS_ftruncate = 93;
+pub const SYS_fchmod = 94;
+pub const SYS_fchown = 95;
+pub const SYS_getpriority = 96;
+pub const SYS_setpriority = 97;
+pub const SYS_profil = 98;
+pub const SYS_statfs = 99;
+pub const SYS_fstatfs = 100;
+pub const SYS_ioperm = 101;
+pub const SYS_socketcall = 102;
+pub const SYS_syslog = 103;
+pub const SYS_setitimer = 104;
+pub const SYS_getitimer = 105;
+pub const SYS_stat = 106;
+pub const SYS_lstat = 107;
+pub const SYS_fstat = 108;
+pub const SYS_olduname = 109;
+pub const SYS_iopl = 110;
+pub const SYS_vhangup = 111;
+pub const SYS_idle = 112;
+pub const SYS_vm86old = 113;
+pub const SYS_wait4 = 114;
+pub const SYS_swapoff = 115;
+pub const SYS_sysinfo = 116;
+pub const SYS_ipc = 117;
+pub const SYS_fsync = 118;
+pub const SYS_sigreturn = 119;
+pub const SYS_clone = 120;
+pub const SYS_setdomainname = 121;
+pub const SYS_uname = 122;
+pub const SYS_modify_ldt = 123;
+pub const SYS_adjtimex = 124;
+pub const SYS_mprotect = 125;
+pub const SYS_sigprocmask = 126;
+pub const SYS_create_module = 127;
+pub const SYS_init_module = 128;
+pub const SYS_delete_module = 129;
+pub const SYS_get_kernel_syms = 130;
+pub const SYS_quotactl = 131;
+pub const SYS_getpgid = 132;
+pub const SYS_fchdir = 133;
+pub const SYS_bdflush = 134;
+pub const SYS_sysfs = 135;
+pub const SYS_personality = 136;
+pub const SYS_afs_syscall = 137;
+pub const SYS_setfsuid = 138;
+pub const SYS_setfsgid = 139;
+pub const SYS__llseek = 140;
+pub const SYS_getdents = 141;
+pub const SYS__newselect = 142;
+pub const SYS_flock = 143;
+pub const SYS_msync = 144;
+pub const SYS_readv = 145;
+pub const SYS_writev = 146;
+pub const SYS_getsid = 147;
+pub const SYS_fdatasync = 148;
+pub const SYS__sysctl = 149;
+pub const SYS_mlock = 150;
+pub const SYS_munlock = 151;
+pub const SYS_mlockall = 152;
+pub const SYS_munlockall = 153;
+pub const SYS_sched_setparam = 154;
+pub const SYS_sched_getparam = 155;
+pub const SYS_sched_setscheduler = 156;
+pub const SYS_sched_getscheduler = 157;
+pub const SYS_sched_yield = 158;
+pub const SYS_sched_get_priority_max = 159;
+pub const SYS_sched_get_priority_min = 160;
+pub const SYS_sched_rr_get_interval = 161;
+pub const SYS_nanosleep = 162;
+pub const SYS_mremap = 163;
+pub const SYS_setresuid = 164;
+pub const SYS_getresuid = 165;
+pub const SYS_vm86 = 166;
+pub const SYS_query_module = 167;
+pub const SYS_poll = 168;
+pub const SYS_nfsservctl = 169;
+pub const SYS_setresgid = 170;
+pub const SYS_getresgid = 171;
+pub const SYS_prctl = 172;
+pub const SYS_rt_sigreturn = 173;
+pub const SYS_rt_sigaction = 174;
+pub const SYS_rt_sigprocmask = 175;
+pub const SYS_rt_sigpending = 176;
+pub const SYS_rt_sigtimedwait = 177;
+pub const SYS_rt_sigqueueinfo = 178;
+pub const SYS_rt_sigsuspend = 179;
+pub const SYS_pread64 = 180;
+pub const SYS_pwrite64 = 181;
+pub const SYS_chown = 182;
+pub const SYS_getcwd = 183;
+pub const SYS_capget = 184;
+pub const SYS_capset = 185;
+pub const SYS_sigaltstack = 186;
+pub const SYS_sendfile = 187;
+pub const SYS_getpmsg = 188;
+pub const SYS_putpmsg = 189;
+pub const SYS_vfork = 190;
+pub const SYS_ugetrlimit = 191;
+pub const SYS_mmap2 = 192;
+pub const SYS_truncate64 = 193;
+pub const SYS_ftruncate64 = 194;
+pub const SYS_stat64 = 195;
+pub const SYS_lstat64 = 196;
+pub const SYS_fstat64 = 197;
+pub const SYS_lchown32 = 198;
+pub const SYS_getuid32 = 199;
+pub const SYS_getgid32 = 200;
+pub const SYS_geteuid32 = 201;
+pub const SYS_getegid32 = 202;
+pub const SYS_setreuid32 = 203;
+pub const SYS_setregid32 = 204;
+pub const SYS_getgroups32 = 205;
+pub const SYS_setgroups32 = 206;
+pub const SYS_fchown32 = 207;
+pub const SYS_setresuid32 = 208;
+pub const SYS_getresuid32 = 209;
+pub const SYS_setresgid32 = 210;
+pub const SYS_getresgid32 = 211;
+pub const SYS_chown32 = 212;
+pub const SYS_setuid32 = 213;
+pub const SYS_setgid32 = 214;
+pub const SYS_setfsuid32 = 215;
+pub const SYS_setfsgid32 = 216;
+pub const SYS_pivot_root = 217;
+pub const SYS_mincore = 218;
+pub const SYS_madvise = 219;
+pub const SYS_madvise1 = 219;
+pub const SYS_getdents64 = 220;
+pub const SYS_fcntl64 = 221;
+pub const SYS_gettid = 224;
+pub const SYS_readahead = 225;
+pub const SYS_setxattr = 226;
+pub const SYS_lsetxattr = 227;
+pub const SYS_fsetxattr = 228;
+pub const SYS_getxattr = 229;
+pub const SYS_lgetxattr = 230;
+pub const SYS_fgetxattr = 231;
+pub const SYS_listxattr = 232;
+pub const SYS_llistxattr = 233;
+pub const SYS_flistxattr = 234;
+pub const SYS_removexattr = 235;
+pub const SYS_lremovexattr = 236;
+pub const SYS_fremovexattr = 237;
+pub const SYS_tkill = 238;
+pub const SYS_sendfile64 = 239;
+pub const SYS_futex = 240;
+pub const SYS_sched_setaffinity = 241;
+pub const SYS_sched_getaffinity = 242;
+pub const SYS_set_thread_area = 243;
+pub const SYS_get_thread_area = 244;
+pub const SYS_io_setup = 245;
+pub const SYS_io_destroy = 246;
+pub const SYS_io_getevents = 247;
+pub const SYS_io_submit = 248;
+pub const SYS_io_cancel = 249;
+pub const SYS_fadvise64 = 250;
+pub const SYS_exit_group = 252;
+pub const SYS_lookup_dcookie = 253;
+pub const SYS_epoll_create = 254;
+pub const SYS_epoll_ctl = 255;
+pub const SYS_epoll_wait = 256;
+pub const SYS_remap_file_pages = 257;
+pub const SYS_set_tid_address = 258;
+pub const SYS_timer_create = 259;
+pub const SYS_timer_settime = SYS_timer_create+1;
+pub const SYS_timer_gettime = SYS_timer_create+2;
+pub const SYS_timer_getoverrun = SYS_timer_create+3;
+pub const SYS_timer_delete = SYS_timer_create+4;
+pub const SYS_clock_settime = SYS_timer_create+5;
+pub const SYS_clock_gettime = SYS_timer_create+6;
+pub const SYS_clock_getres = SYS_timer_create+7;
+pub const SYS_clock_nanosleep = SYS_timer_create+8;
+pub const SYS_statfs64 = 268;
+pub const SYS_fstatfs64 = 269;
+pub const SYS_tgkill = 270;
+pub const SYS_utimes = 271;
+pub const SYS_fadvise64_64 = 272;
+pub const SYS_vserver = 273;
+pub const SYS_mbind = 274;
+pub const SYS_get_mempolicy = 275;
+pub const SYS_set_mempolicy = 276;
+pub const SYS_mq_open = 277;
+pub const SYS_mq_unlink = SYS_mq_open+1;
+pub const SYS_mq_timedsend = SYS_mq_open+2;
+pub const SYS_mq_timedreceive = SYS_mq_open+3;
+pub const SYS_mq_notify = SYS_mq_open+4;
+pub const SYS_mq_getsetattr = SYS_mq_open+5;
+pub const SYS_kexec_load = 283;
+pub const SYS_waitid = 284;
+pub const SYS_add_key = 286;
+pub const SYS_request_key = 287;
+pub const SYS_keyctl = 288;
+pub const SYS_ioprio_set = 289;
+pub const SYS_ioprio_get = 290;
+pub const SYS_inotify_init = 291;
+pub const SYS_inotify_add_watch = 292;
+pub const SYS_inotify_rm_watch = 293;
+pub const SYS_migrate_pages = 294;
+pub const SYS_openat = 295;
+pub const SYS_mkdirat = 296;
+pub const SYS_mknodat = 297;
+pub const SYS_fchownat = 298;
+pub const SYS_futimesat = 299;
+pub const SYS_fstatat64 = 300;
+pub const SYS_unlinkat = 301;
+pub const SYS_renameat = 302;
+pub const SYS_linkat = 303;
+pub const SYS_symlinkat = 304;
+pub const SYS_readlinkat = 305;
+pub const SYS_fchmodat = 306;
+pub const SYS_faccessat = 307;
+pub const SYS_pselect6 = 308;
+pub const SYS_ppoll = 309;
+pub const SYS_unshare = 310;
+pub const SYS_set_robust_list = 311;
+pub const SYS_get_robust_list = 312;
+pub const SYS_splice = 313;
+pub const SYS_sync_file_range = 314;
+pub const SYS_tee = 315;
+pub const SYS_vmsplice = 316;
+pub const SYS_move_pages = 317;
+pub const SYS_getcpu = 318;
+pub const SYS_epoll_pwait = 319;
+pub const SYS_utimensat = 320;
+pub const SYS_signalfd = 321;
+pub const SYS_timerfd_create = 322;
+pub const SYS_eventfd = 323;
+pub const SYS_fallocate = 324;
+pub const SYS_timerfd_settime = 325;
+pub const SYS_timerfd_gettime = 326;
+pub const SYS_signalfd4 = 327;
+pub const SYS_eventfd2 = 328;
+pub const SYS_epoll_create1 = 329;
+pub const SYS_dup3 = 330;
+pub const SYS_pipe2 = 331;
+pub const SYS_inotify_init1 = 332;
+pub const SYS_preadv = 333;
+pub const SYS_pwritev = 334;
+pub const SYS_rt_tgsigqueueinfo = 335;
+pub const SYS_perf_event_open = 336;
+pub const SYS_recvmmsg = 337;
+pub const SYS_fanotify_init = 338;
+pub const SYS_fanotify_mark = 339;
+pub const SYS_prlimit64 = 340;
+pub const SYS_name_to_handle_at = 341;
+pub const SYS_open_by_handle_at = 342;
+pub const SYS_clock_adjtime = 343;
+pub const SYS_syncfs = 344;
+pub const SYS_sendmmsg = 345;
+pub const SYS_setns = 346;
+pub const SYS_process_vm_readv = 347;
+pub const SYS_process_vm_writev = 348;
+pub const SYS_kcmp = 349;
+pub const SYS_finit_module = 350;
+pub const SYS_sched_setattr = 351;
+pub const SYS_sched_getattr = 352;
+pub const SYS_renameat2 = 353;
+pub const SYS_seccomp = 354;
+pub const SYS_getrandom = 355;
+pub const SYS_memfd_create = 356;
+pub const SYS_bpf = 357;
+pub const SYS_execveat = 358;
+pub const SYS_socket = 359;
+pub const SYS_socketpair = 360;
+pub const SYS_bind = 361;
+pub const SYS_connect = 362;
+pub const SYS_listen = 363;
+pub const SYS_accept4 = 364;
+pub const SYS_getsockopt = 365;
+pub const SYS_setsockopt = 366;
+pub const SYS_getsockname = 367;
+pub const SYS_getpeername = 368;
+pub const SYS_sendto = 369;
+pub const SYS_sendmsg = 370;
+pub const SYS_recvfrom = 371;
+pub const SYS_recvmsg = 372;
+pub const SYS_shutdown = 373;
+pub const SYS_userfaultfd = 374;
+pub const SYS_membarrier = 375;
+pub const SYS_mlock2 = 376;
+
+
 pub const O_CREAT        = 0o100;
 pub const O_EXCL         = 0o200;
 pub const O_NOCTTY       = 0o400;
@@ -79,7 +459,22 @@ pub fn syscall4(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isiz
             [arg4] "{esi}" (arg4))
 }
 
-pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isize, arg5: isize, arg6: isize) -> isize {
+pub fn syscall5(number: isize, arg1: isize, arg2: isize, arg3: isize,
+    arg4: isize, arg5: isize) -> isize
+{
+    asm volatile ("int $0x80"
+        : [ret] "={eax}" (-> isize)
+        : [number] "{eax}" (number),
+            [arg1] "{ebx}" (arg1),
+            [arg2] "{ecx}" (arg2),
+            [arg3] "{edx}" (arg3),
+            [arg4] "{esi}" (arg4),
+            [arg5] "{edi}" (arg5))
+}
+
+pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize,
+    arg4: isize, arg5: isize, arg6: isize) -> isize
+{
     asm volatile ("int $0x80"
         : [ret] "={eax}" (-> isize)
         : [number] "{eax}" (number),
@@ -90,3 +485,13 @@ pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isiz
             [arg5] "{edi}" (arg5),
             [arg6] "{ebp}" (arg6))
 }
+
+export struct msghdr {
+    msg_name: &u8,
+    msg_namelen: socklen_t,
+    msg_iov: &iovec,
+    msg_iovlen: i32,
+    msg_control: &u8,
+    msg_controllen: socklen_t,
+    msg_flags: i32,
+}

std/linux_x86_64.zig

@@ -1,20 +1,333 @@
+const linux = @import("linux.zig");
+const socklen_t = linux.socklen_t;
+const iovec = linux.iovec;
+
 pub const SYS_read = 0;
 pub const SYS_write = 1;
 pub const SYS_open = 2;
 pub const SYS_close = 3;
-pub const SYS_creat = 85;
+pub const SYS_stat = 4;
+pub const SYS_fstat = 5;
+pub const SYS_lstat = 6;
+pub const SYS_poll = 7;
 pub const SYS_lseek = 8;
 pub const SYS_mmap = 9;
+pub const SYS_mprotect = 10;
 pub const SYS_munmap = 11;
+pub const SYS_brk = 12;
+pub const SYS_rt_sigaction = 13;
 pub const SYS_rt_sigprocmask = 14;
+pub const SYS_rt_sigreturn = 15;
+pub const SYS_ioctl = 16;
+pub const SYS_pread64 = 17;
+pub const SYS_pwrite64 = 18;
+pub const SYS_readv = 19;
+pub const SYS_writev = 20;
+pub const SYS_access = 21;
+pub const SYS_pipe = 22;
+pub const SYS_select = 23;
+pub const SYS_sched_yield = 24;
+pub const SYS_mremap = 25;
+pub const SYS_msync = 26;
+pub const SYS_mincore = 27;
+pub const SYS_madvise = 28;
+pub const SYS_shmget = 29;
+pub const SYS_shmat = 30;
+pub const SYS_shmctl = 31;
+pub const SYS_dup = 32;
+pub const SYS_dup2 = 33;
+pub const SYS_pause = 34;
+pub const SYS_nanosleep = 35;
+pub const SYS_getitimer = 36;
+pub const SYS_alarm = 37;
+pub const SYS_setitimer = 38;
+pub const SYS_getpid = 39;
+pub const SYS_sendfile = 40;
+pub const SYS_socket = 41;
+pub const SYS_connect = 42;
+pub const SYS_accept = 43;
+pub const SYS_sendto = 44;
+pub const SYS_recvfrom = 45;
+pub const SYS_sendmsg = 46;
+pub const SYS_recvmsg = 47;
+pub const SYS_shutdown = 48;
+pub const SYS_bind = 49;
+pub const SYS_listen = 50;
+pub const SYS_getsockname = 51;
+pub const SYS_getpeername = 52;
+pub const SYS_socketpair = 53;
+pub const SYS_setsockopt = 54;
+pub const SYS_getsockopt = 55;
+pub const SYS_clone = 56;
+pub const SYS_fork = 57;
+pub const SYS_vfork = 58;
+pub const SYS_execve = 59;
 pub const SYS_exit = 60;
+pub const SYS_wait4 = 61;
 pub const SYS_kill = 62;
+pub const SYS_uname = 63;
+pub const SYS_semget = 64;
+pub const SYS_semop = 65;
+pub const SYS_semctl = 66;
+pub const SYS_shmdt = 67;
+pub const SYS_msgget = 68;
+pub const SYS_msgsnd = 69;
+pub const SYS_msgrcv = 70;
+pub const SYS_msgctl = 71;
+pub const SYS_fcntl = 72;
+pub const SYS_flock = 73;
+pub const SYS_fsync = 74;
+pub const SYS_fdatasync = 75;
+pub const SYS_truncate = 76;
+pub const SYS_ftruncate = 77;
+pub const SYS_getdents = 78;
+pub const SYS_getcwd = 79;
+pub const SYS_chdir = 80;
+pub const SYS_fchdir = 81;
+pub const SYS_rename = 82;
+pub const SYS_mkdir = 83;
+pub const SYS_rmdir = 84;
+pub const SYS_creat = 85;
+pub const SYS_link = 86;
+pub const SYS_unlink = 87;
+pub const SYS_symlink = 88;
+pub const SYS_readlink = 89;
+pub const SYS_chmod = 90;
+pub const SYS_fchmod = 91;
+pub const SYS_chown = 92;
+pub const SYS_fchown = 93;
+pub const SYS_lchown = 94;
+pub const SYS_umask = 95;
+pub const SYS_gettimeofday = 96;
+pub const SYS_getrlimit = 97;
+pub const SYS_getrusage = 98;
+pub const SYS_sysinfo = 99;
+pub const SYS_times = 100;
+pub const SYS_ptrace = 101;
+pub const SYS_getuid = 102;
+pub const SYS_syslog = 103;
 pub const SYS_getgid = 104;
+pub const SYS_setuid = 105;
+pub const SYS_setgid = 106;
+pub const SYS_geteuid = 107;
+pub const SYS_getegid = 108;
+pub const SYS_setpgid = 109;
+pub const SYS_getppid = 110;
+pub const SYS_getpgrp = 111;
+pub const SYS_setsid = 112;
+pub const SYS_setreuid = 113;
+pub const SYS_setregid = 114;
+pub const SYS_getgroups = 115;
+pub const SYS_setgroups = 116;
+pub const SYS_setresuid = 117;
+pub const SYS_getresuid = 118;
+pub const SYS_setresgid = 119;
+pub const SYS_getresgid = 120;
+pub const SYS_getpgid = 121;
+pub const SYS_setfsuid = 122;
+pub const SYS_setfsgid = 123;
+pub const SYS_getsid = 124;
+pub const SYS_capget = 125;
+pub const SYS_capset = 126;
+pub const SYS_rt_sigpending = 127;
+pub const SYS_rt_sigtimedwait = 128;
+pub const SYS_rt_sigqueueinfo = 129;
+pub const SYS_rt_sigsuspend = 130;
+pub const SYS_sigaltstack = 131;
+pub const SYS_utime = 132;
+pub const SYS_mknod = 133;
+pub const SYS_uselib = 134;
+pub const SYS_personality = 135;
+pub const SYS_ustat = 136;
+pub const SYS_statfs = 137;
+pub const SYS_fstatfs = 138;
+pub const SYS_sysfs = 139;
+pub const SYS_getpriority = 140;
+pub const SYS_setpriority = 141;
+pub const SYS_sched_setparam = 142;
+pub const SYS_sched_getparam = 143;
+pub const SYS_sched_setscheduler = 144;
+pub const SYS_sched_getscheduler = 145;
+pub const SYS_sched_get_priority_max = 146;
+pub const SYS_sched_get_priority_min = 147;
+pub const SYS_sched_rr_get_interval = 148;
+pub const SYS_mlock = 149;
+pub const SYS_munlock = 150;
+pub const SYS_mlockall = 151;
+pub const SYS_munlockall = 152;
+pub const SYS_vhangup = 153;
+pub const SYS_modify_ldt = 154;
+pub const SYS_pivot_root = 155;
+pub const SYS__sysctl = 156;
+pub const SYS_prctl = 157;
+pub const SYS_arch_prctl = 158;
+pub const SYS_adjtimex = 159;
+pub const SYS_setrlimit = 160;
+pub const SYS_chroot = 161;
+pub const SYS_sync = 162;
+pub const SYS_acct = 163;
+pub const SYS_settimeofday = 164;
+pub const SYS_mount = 165;
+pub const SYS_umount2 = 166;
+pub const SYS_swapon = 167;
+pub const SYS_swapoff = 168;
+pub const SYS_reboot = 169;
+pub const SYS_sethostname = 170;
+pub const SYS_setdomainname = 171;
+pub const SYS_iopl = 172;
+pub const SYS_ioperm = 173;
+pub const SYS_create_module = 174;
+pub const SYS_init_module = 175;
+pub const SYS_delete_module = 176;
+pub const SYS_get_kernel_syms = 177;
+pub const SYS_query_module = 178;
+pub const SYS_quotactl = 179;
+pub const SYS_nfsservctl = 180;
+pub const SYS_getpmsg = 181;
+pub const SYS_putpmsg = 182;
+pub const SYS_afs_syscall = 183;
+pub const SYS_tuxcall = 184;
+pub const SYS_security = 185;
 pub const SYS_gettid = 186;
+pub const SYS_readahead = 187;
+pub const SYS_setxattr = 188;
+pub const SYS_lsetxattr = 189;
+pub const SYS_fsetxattr = 190;
+pub const SYS_getxattr = 191;
+pub const SYS_lgetxattr = 192;
+pub const SYS_fgetxattr = 193;
+pub const SYS_listxattr = 194;
+pub const SYS_llistxattr = 195;
+pub const SYS_flistxattr = 196;
+pub const SYS_removexattr = 197;
+pub const SYS_lremovexattr = 198;
+pub const SYS_fremovexattr = 199;
 pub const SYS_tkill = 200;
+pub const SYS_time = 201;
+pub const SYS_futex = 202;
+pub const SYS_sched_setaffinity = 203;
+pub const SYS_sched_getaffinity = 204;
+pub const SYS_set_thread_area = 205;
+pub const SYS_io_setup = 206;
+pub const SYS_io_destroy = 207;
+pub const SYS_io_getevents = 208;
+pub const SYS_io_submit = 209;
+pub const SYS_io_cancel = 210;
+pub const SYS_get_thread_area = 211;
+pub const SYS_lookup_dcookie = 212;
+pub const SYS_epoll_create = 213;
+pub const SYS_epoll_ctl_old = 214;
+pub const SYS_epoll_wait_old = 215;
+pub const SYS_remap_file_pages = 216;
+pub const SYS_getdents64 = 217;
+pub const SYS_set_tid_address = 218;
+pub const SYS_restart_syscall = 219;
+pub const SYS_semtimedop = 220;
+pub const SYS_fadvise64 = 221;
+pub const SYS_timer_create = 222;
+pub const SYS_timer_settime = 223;
+pub const SYS_timer_gettime = 224;
+pub const SYS_timer_getoverrun = 225;
+pub const SYS_timer_delete = 226;
+pub const SYS_clock_settime = 227;
+pub const SYS_clock_gettime = 228;
+pub const SYS_clock_getres = 229;
+pub const SYS_clock_nanosleep = 230;
+pub const SYS_exit_group = 231;
+pub const SYS_epoll_wait = 232;
+pub const SYS_epoll_ctl = 233;
 pub const SYS_tgkill = 234;
+pub const SYS_utimes = 235;
+pub const SYS_vserver = 236;
+pub const SYS_mbind = 237;
+pub const SYS_set_mempolicy = 238;
+pub const SYS_get_mempolicy = 239;
+pub const SYS_mq_open = 240;
+pub const SYS_mq_unlink = 241;
+pub const SYS_mq_timedsend = 242;
+pub const SYS_mq_timedreceive = 243;
+pub const SYS_mq_notify = 244;
+pub const SYS_mq_getsetattr = 245;
+pub const SYS_kexec_load = 246;
+pub const SYS_waitid = 247;
+pub const SYS_add_key = 248;
+pub const SYS_request_key = 249;
+pub const SYS_keyctl = 250;
+pub const SYS_ioprio_set = 251;
+pub const SYS_ioprio_get = 252;
+pub const SYS_inotify_init = 253;
+pub const SYS_inotify_add_watch = 254;
+pub const SYS_inotify_rm_watch = 255;
+pub const SYS_migrate_pages = 256;
 pub const SYS_openat = 257;
+pub const SYS_mkdirat = 258;
+pub const SYS_mknodat = 259;
+pub const SYS_fchownat = 260;
+pub const SYS_futimesat = 261;
+pub const SYS_newfstatat = 262;
+pub const SYS_unlinkat = 263;
+pub const SYS_renameat = 264;
+pub const SYS_linkat = 265;
+pub const SYS_symlinkat = 266;
+pub const SYS_readlinkat = 267;
+pub const SYS_fchmodat = 268;
+pub const SYS_faccessat = 269;
+pub const SYS_pselect6 = 270;
+pub const SYS_ppoll = 271;
+pub const SYS_unshare = 272;
+pub const SYS_set_robust_list = 273;
+pub const SYS_get_robust_list = 274;
+pub const SYS_splice = 275;
+pub const SYS_tee = 276;
+pub const SYS_sync_file_range = 277;
+pub const SYS_vmsplice = 278;
+pub const SYS_move_pages = 279;
+pub const SYS_utimensat = 280;
+pub const SYS_epoll_pwait = 281;
+pub const SYS_signalfd = 282;
+pub const SYS_timerfd_create = 283;
+pub const SYS_eventfd = 284;
+pub const SYS_fallocate = 285;
+pub const SYS_timerfd_settime = 286;
+pub const SYS_timerfd_gettime = 287;
+pub const SYS_accept4 = 288;
+pub const SYS_signalfd4 = 289;
+pub const SYS_eventfd2 = 290;
+pub const SYS_epoll_create1 = 291;
+pub const SYS_dup3 = 292;
+pub const SYS_pipe2 = 293;
+pub const SYS_inotify_init1 = 294;
+pub const SYS_preadv = 295;
+pub const SYS_pwritev = 296;
+pub const SYS_rt_tgsigqueueinfo = 297;
+pub const SYS_perf_event_open = 298;
+pub const SYS_recvmmsg = 299;
+pub const SYS_fanotify_init = 300;
+pub const SYS_fanotify_mark = 301;
+pub const SYS_prlimit64 = 302;
+pub const SYS_name_to_handle_at = 303;
+pub const SYS_open_by_handle_at = 304;
+pub const SYS_clock_adjtime = 305;
+pub const SYS_syncfs = 306;
+pub const SYS_sendmmsg = 307;
+pub const SYS_setns = 308;
+pub const SYS_getcpu = 309;
+pub const SYS_process_vm_readv = 310;
+pub const SYS_process_vm_writev = 311;
+pub const SYS_kcmp = 312;
+pub const SYS_finit_module = 313;
+pub const SYS_sched_setattr = 314;
+pub const SYS_sched_getattr = 315;
+pub const SYS_renameat2 = 316;
+pub const SYS_seccomp = 317;
 pub const SYS_getrandom = 318;
+pub const SYS_memfd_create = 319;
+pub const SYS_kexec_file_load = 320;
+pub const SYS_bpf = 321;
+pub const SYS_execveat = 322;
+pub const SYS_userfaultfd = 323;
+pub const SYS_membarrier = 324;
+pub const SYS_mlock2 = 325;
 
 pub const O_CREAT =        0o100;
 pub const O_EXCL =         0o200;
@@ -102,7 +415,21 @@ pub fn syscall4(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isiz
         : "rcx", "r11")
 }
 
-pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isize, arg5: isize, arg6: isize) -> isize {
+pub fn syscall5(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isize, arg5: isize) -> isize {
+    asm volatile ("syscall"
+        : [ret] "={rax}" (-> isize)
+        : [number] "{rax}" (number),
+            [arg1] "{rdi}" (arg1),
+            [arg2] "{rsi}" (arg2),
+            [arg3] "{rdx}" (arg3),
+            [arg4] "{r10}" (arg4),
+            [arg5] "{r8}" (arg5)
+        : "rcx", "r11")
+}
+
+pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isize,
+    arg5: isize, arg6: isize) -> isize
+{
     asm volatile ("syscall"
         : [ret] "={rax}" (-> isize)
         : [number] "{rax}" (number),
@@ -114,3 +441,15 @@ pub fn syscall6(number: isize, arg1: isize, arg2: isize, arg3: isize, arg4: isiz
             [arg6] "{r9}" (arg6)
         : "rcx", "r11")
 }
+
+export struct msghdr {
+    msg_name: &u8,
+    msg_namelen: socklen_t,
+    msg_iov: &iovec,
+    msg_iovlen: i32,
+    __pad1: i32,
+    msg_control: &u8,
+    msg_controllen: socklen_t,
+    __pad2: socklen_t,
+    msg_flags: i32,
+}

std/net.zig

@@ -0,0 +1,4 @@
+const linux = @import("linux.zig");
+
+pub fn open(hostname: []const u8) -> %void {
+}