const builtin = @import("builtin"); pub use @import("errno.zig"); const std = @import("../../index.zig"); const c = std.c; const assert = std.debug.assert; const maxInt = std.math.maxInt; pub const Kevent = c.Kevent; pub const CTL_KERN = 1; pub const CTL_DEBUG = 5; pub const KERN_PROC = 14; // struct: process entries pub const KERN_PROC_PATHNAME = 12; // path to executable pub const PATH_MAX = 1024; pub const STDIN_FILENO = 0; pub const STDOUT_FILENO = 1; pub const STDERR_FILENO = 2; pub const PROT_NONE = 0; pub const PROT_READ = 1; pub const PROT_WRITE = 2; pub const PROT_EXEC = 4; pub const CLOCK_REALTIME = 0; pub const CLOCK_VIRTUAL = 1; pub const CLOCK_PROF = 2; pub const CLOCK_MONOTONIC = 4; pub const CLOCK_UPTIME = 5; pub const CLOCK_UPTIME_PRECISE = 7; pub const CLOCK_UPTIME_FAST = 8; pub const CLOCK_REALTIME_PRECISE = 9; pub const CLOCK_REALTIME_FAST = 10; pub const CLOCK_MONOTONIC_PRECISE = 11; pub const CLOCK_MONOTONIC_FAST = 12; pub const CLOCK_SECOND = 13; pub const CLOCK_THREAD_CPUTIME_ID = 14; pub const CLOCK_PROCESS_CPUTIME_ID = 15; pub const MAP_FAILED = maxInt(usize); pub const MAP_SHARED = 0x0001; pub const MAP_PRIVATE = 0x0002; pub const MAP_FIXED = 0x0010; pub const MAP_STACK = 0x0400; pub const MAP_NOSYNC = 0x0800; pub const MAP_ANON = 0x1000; pub const MAP_ANONYMOUS = MAP_ANON; pub const MAP_FILE = 0; pub const MAP_NORESERVE = 0; pub const MAP_GUARD = 0x00002000; pub const MAP_EXCL = 0x00004000; pub const MAP_NOCORE = 0x00020000; pub const MAP_PREFAULT_READ = 0x00040000; pub const MAP_32BIT = 0x00080000; pub const WNOHANG = 1; pub const WUNTRACED = 2; pub const WSTOPPED = WUNTRACED; pub const WCONTINUED = 4; pub const WNOWAIT = 8; pub const WEXITED = 16; pub const WTRAPPED = 32; pub const SA_ONSTACK = 0x0001; pub const SA_RESTART = 0x0002; pub const SA_RESETHAND = 0x0004; pub const SA_NOCLDSTOP = 0x0008; pub const SA_NODEFER = 0x0010; pub const SA_NOCLDWAIT = 0x0020; pub const SA_SIGINFO = 0x0040; pub const SIGHUP = 1; pub const SIGINT = 2; pub const SIGQUIT = 3; pub const SIGILL = 4; pub const SIGTRAP = 5; pub const SIGABRT = 6; pub const SIGIOT = SIGABRT; pub const SIGEMT = 7; pub const SIGFPE = 8; pub const SIGKILL = 9; pub const SIGBUS = 10; pub const SIGSEGV = 11; pub const SIGSYS = 12; pub const SIGPIPE = 13; pub const SIGALRM = 14; pub const SIGTERM = 15; pub const SIGURG = 16; pub const SIGSTOP = 17; pub const SIGTSTP = 18; pub const SIGCONT = 19; pub const SIGCHLD = 20; pub const SIGTTIN = 21; pub const SIGTTOU = 22; pub const SIGIO = 23; pub const SIGXCPU = 24; pub const SIGXFSZ = 25; pub const SIGVTALRM = 26; pub const SIGPROF = 27; pub const SIGWINCH = 28; pub const SIGINFO = 29; pub const SIGUSR1 = 30; pub const SIGUSR2 = 31; pub const SIGTHR = 32; pub const SIGLWP = SIGTHR; pub const SIGLIBRT = 33; pub const SIGRTMIN = 65; pub const SIGRTMAX = 126; // access function pub const F_OK = 0; // test for existence of file pub const X_OK = 1; // test for execute or search permission pub const W_OK = 2; // test for write permission pub const R_OK = 4; // test for read permission pub const O_RDONLY = 0x0000; pub const O_WRONLY = 0x0001; pub const O_RDWR = 0x0002; pub const O_ACCMODE = 0x0003; pub const O_CREAT = 0x0200; pub const O_EXCL = 0x0800; pub const O_NOCTTY = 0x8000; pub const O_TRUNC = 0x0400; pub const O_APPEND = 0x0008; pub const O_NONBLOCK = 0x0004; pub const O_DSYNC = 0o10000; pub const O_SYNC = 0x0080; pub const O_RSYNC = 0o4010000; pub const O_DIRECTORY = 0o200000; pub const O_NOFOLLOW = 0x0100; pub const O_CLOEXEC = 0x00100000; pub const O_ASYNC = 0x0040; pub const O_DIRECT = 0x00010000; pub const O_LARGEFILE = 0; pub const O_NOATIME = 0o1000000; pub const O_PATH = 0o10000000; pub const O_TMPFILE = 0o20200000; pub const O_NDELAY = O_NONBLOCK; pub const F_DUPFD = 0; pub const F_GETFD = 1; pub const F_SETFD = 2; pub const F_GETFL = 3; pub const F_SETFL = 4; pub const F_SETOWN = 8; pub const F_GETOWN = 9; pub const F_SETSIG = 10; pub const F_GETSIG = 11; pub const F_GETLK = 5; pub const F_SETLK = 6; pub const F_SETLKW = 7; pub const F_SETOWN_EX = 15; pub const F_GETOWN_EX = 16; pub const F_GETOWNER_UIDS = 17; pub const SEEK_SET = 0; pub const SEEK_CUR = 1; pub const SEEK_END = 2; pub const SIG_BLOCK = 1; pub const SIG_UNBLOCK = 2; pub const SIG_SETMASK = 3; pub const SOCK_STREAM = 1; pub const SOCK_DGRAM = 2; pub const SOCK_RAW = 3; pub const SOCK_RDM = 4; pub const SOCK_SEQPACKET = 5; pub const SOCK_CLOEXEC = 0x10000000; pub const SOCK_NONBLOCK = 0x20000000; pub const PROTO_ip = 0o000; pub const PROTO_icmp = 0o001; pub const PROTO_igmp = 0o002; pub const PROTO_ggp = 0o003; pub const PROTO_ipencap = 0o004; pub const PROTO_st = 0o005; pub const PROTO_tcp = 0o006; pub const PROTO_egp = 0o010; pub const PROTO_pup = 0o014; pub const PROTO_udp = 0o021; pub const PROTO_hmp = 0o024; pub const PROTO_xns_idp = 0o026; pub const PROTO_rdp = 0o033; pub const PROTO_iso_tp4 = 0o035; pub const PROTO_xtp = 0o044; pub const PROTO_ddp = 0o045; pub const PROTO_idpr_cmtp = 0o046; pub const PROTO_ipv6 = 0o051; pub const PROTO_ipv6_route = 0o053; pub const PROTO_ipv6_frag = 0o054; pub const PROTO_idrp = 0o055; pub const PROTO_rsvp = 0o056; pub const PROTO_gre = 0o057; pub const PROTO_esp = 0o062; pub const PROTO_ah = 0o063; pub const PROTO_skip = 0o071; pub const PROTO_ipv6_icmp = 0o072; pub const PROTO_ipv6_nonxt = 0o073; pub const PROTO_ipv6_opts = 0o074; pub const PROTO_rspf = 0o111; pub const PROTO_vmtp = 0o121; pub const PROTO_ospf = 0o131; pub const PROTO_ipip = 0o136; pub const PROTO_encap = 0o142; pub const PROTO_pim = 0o147; pub const PROTO_raw = 0o377; pub const PF_UNSPEC = 0; pub const PF_LOCAL = 1; pub const PF_UNIX = PF_LOCAL; pub const PF_FILE = PF_LOCAL; pub const PF_INET = 2; pub const PF_AX25 = 3; pub const PF_IPX = 4; pub const PF_APPLETALK = 5; pub const PF_NETROM = 6; pub const PF_BRIDGE = 7; pub const PF_ATMPVC = 8; pub const PF_X25 = 9; pub const PF_INET6 = 10; pub const PF_ROSE = 11; pub const PF_DECnet = 12; pub const PF_NETBEUI = 13; pub const PF_SECURITY = 14; pub const PF_KEY = 15; pub const PF_NETLINK = 16; pub const PF_ROUTE = PF_NETLINK; pub const PF_PACKET = 17; pub const PF_ASH = 18; pub const PF_ECONET = 19; pub const PF_ATMSVC = 20; pub const PF_RDS = 21; pub const PF_SNA = 22; pub const PF_IRDA = 23; pub const PF_PPPOX = 24; pub const PF_WANPIPE = 25; pub const PF_LLC = 26; pub const PF_IB = 27; pub const PF_MPLS = 28; pub const PF_CAN = 29; pub const PF_TIPC = 30; pub const PF_BLUETOOTH = 31; pub const PF_IUCV = 32; pub const PF_RXRPC = 33; pub const PF_ISDN = 34; pub const PF_PHONET = 35; pub const PF_IEEE802154 = 36; pub const PF_CAIF = 37; pub const PF_ALG = 38; pub const PF_NFC = 39; pub const PF_VSOCK = 40; pub const PF_MAX = 41; pub const AF_UNSPEC = PF_UNSPEC; pub const AF_LOCAL = PF_LOCAL; pub const AF_UNIX = AF_LOCAL; pub const AF_FILE = AF_LOCAL; pub const AF_INET = PF_INET; pub const AF_AX25 = PF_AX25; pub const AF_IPX = PF_IPX; pub const AF_APPLETALK = PF_APPLETALK; pub const AF_NETROM = PF_NETROM; pub const AF_BRIDGE = PF_BRIDGE; pub const AF_ATMPVC = PF_ATMPVC; pub const AF_X25 = PF_X25; pub const AF_INET6 = PF_INET6; pub const AF_ROSE = PF_ROSE; pub const AF_DECnet = PF_DECnet; pub const AF_NETBEUI = PF_NETBEUI; pub const AF_SECURITY = PF_SECURITY; pub const AF_KEY = PF_KEY; pub const AF_NETLINK = PF_NETLINK; pub const AF_ROUTE = PF_ROUTE; pub const AF_PACKET = PF_PACKET; pub const AF_ASH = PF_ASH; pub const AF_ECONET = PF_ECONET; pub const AF_ATMSVC = PF_ATMSVC; pub const AF_RDS = PF_RDS; pub const AF_SNA = PF_SNA; pub const AF_IRDA = PF_IRDA; pub const AF_PPPOX = PF_PPPOX; pub const AF_WANPIPE = PF_WANPIPE; pub const AF_LLC = PF_LLC; pub const AF_IB = PF_IB; pub const AF_MPLS = PF_MPLS; pub const AF_CAN = PF_CAN; pub const AF_TIPC = PF_TIPC; pub const AF_BLUETOOTH = PF_BLUETOOTH; pub const AF_IUCV = PF_IUCV; pub const AF_RXRPC = PF_RXRPC; pub const AF_ISDN = PF_ISDN; pub const AF_PHONET = PF_PHONET; pub const AF_IEEE802154 = PF_IEEE802154; pub const AF_CAIF = PF_CAIF; pub const AF_ALG = PF_ALG; pub const AF_NFC = PF_NFC; pub const AF_VSOCK = PF_VSOCK; pub const AF_MAX = PF_MAX; pub const DT_UNKNOWN = 0; pub const DT_FIFO = 1; pub const DT_CHR = 2; pub const DT_DIR = 4; pub const DT_BLK = 6; pub const DT_REG = 8; pub const DT_LNK = 10; pub const DT_SOCK = 12; pub const DT_WHT = 14; /// add event to kq (implies enable) pub const EV_ADD = 0x0001; /// delete event from kq pub const EV_DELETE = 0x0002; /// enable event pub const EV_ENABLE = 0x0004; /// disable event (not reported) pub const EV_DISABLE = 0x0008; /// only report one occurrence pub const EV_ONESHOT = 0x0010; /// clear event state after reporting pub const EV_CLEAR = 0x0020; /// force immediate event output /// ... with or without EV_ERROR /// ... use KEVENT_FLAG_ERROR_EVENTS /// on syscalls supporting flags pub const EV_RECEIPT = 0x0040; /// disable event after reporting pub const EV_DISPATCH = 0x0080; pub const EVFILT_READ = -1; pub const EVFILT_WRITE = -2; /// attached to aio requests pub const EVFILT_AIO = -3; /// attached to vnodes pub const EVFILT_VNODE = -4; /// attached to struct proc pub const EVFILT_PROC = -5; /// attached to struct proc pub const EVFILT_SIGNAL = -6; /// timers pub const EVFILT_TIMER = -7; /// Process descriptors pub const EVFILT_PROCDESC = -8; /// Filesystem events pub const EVFILT_FS = -9; pub const EVFILT_LIO = -10; /// User events pub const EVFILT_USER = -11; /// Sendfile events pub const EVFILT_SENDFILE = -12; pub const EVFILT_EMPTY = -13; /// On input, NOTE_TRIGGER causes the event to be triggered for output. pub const NOTE_TRIGGER = 0x01000000; /// ignore input fflags pub const NOTE_FFNOP = 0x00000000; /// and fflags pub const NOTE_FFAND = 0x40000000; /// or fflags pub const NOTE_FFOR = 0x80000000; /// copy fflags pub const NOTE_FFCOPY = 0xc0000000; /// mask for operations pub const NOTE_FFCTRLMASK = 0xc0000000; pub const NOTE_FFLAGSMASK = 0x00ffffff; /// low water mark pub const NOTE_LOWAT = 0x00000001; /// behave like poll() pub const NOTE_FILE_POLL = 0x00000002; /// vnode was removed pub const NOTE_DELETE = 0x00000001; /// data contents changed pub const NOTE_WRITE = 0x00000002; /// size increased pub const NOTE_EXTEND = 0x00000004; /// attributes changed pub const NOTE_ATTRIB = 0x00000008; /// link count changed pub const NOTE_LINK = 0x00000010; /// vnode was renamed pub const NOTE_RENAME = 0x00000020; /// vnode access was revoked pub const NOTE_REVOKE = 0x00000040; /// vnode was opened pub const NOTE_OPEN = 0x00000080; /// file closed, fd did not allow write pub const NOTE_CLOSE = 0x00000100; /// file closed, fd did allow write pub const NOTE_CLOSE_WRITE = 0x00000200; /// file was read pub const NOTE_READ = 0x00000400; /// process exited pub const NOTE_EXIT = 0x80000000; /// process forked pub const NOTE_FORK = 0x40000000; /// process exec'd pub const NOTE_EXEC = 0x20000000; /// mask for signal & exit status pub const NOTE_PDATAMASK = 0x000fffff; pub const NOTE_PCTRLMASK = (~NOTE_PDATAMASK); /// data is seconds pub const NOTE_SECONDS = 0x00000001; /// data is milliseconds pub const NOTE_MSECONDS = 0x00000002; /// data is microseconds pub const NOTE_USECONDS = 0x00000004; /// data is nanoseconds pub const NOTE_NSECONDS = 0x00000008; /// timeout is absolute pub const NOTE_ABSTIME = 0x00000010; pub const TCGETS = 0x5401; pub const TCSETS = 0x5402; pub const TCSETSW = 0x5403; pub const TCSETSF = 0x5404; pub const TCGETA = 0x5405; pub const TCSETA = 0x5406; pub const TCSETAW = 0x5407; pub const TCSETAF = 0x5408; pub const TCSBRK = 0x5409; pub const TCXONC = 0x540A; pub const TCFLSH = 0x540B; pub const TIOCEXCL = 0x540C; pub const TIOCNXCL = 0x540D; pub const TIOCSCTTY = 0x540E; pub const TIOCGPGRP = 0x540F; pub const TIOCSPGRP = 0x5410; pub const TIOCOUTQ = 0x5411; pub const TIOCSTI = 0x5412; pub const TIOCGWINSZ = 0x5413; pub const TIOCSWINSZ = 0x5414; pub const TIOCMGET = 0x5415; pub const TIOCMBIS = 0x5416; pub const TIOCMBIC = 0x5417; pub const TIOCMSET = 0x5418; pub const TIOCGSOFTCAR = 0x5419; pub const TIOCSSOFTCAR = 0x541A; pub const FIONREAD = 0x541B; pub const TIOCINQ = FIONREAD; pub const TIOCLINUX = 0x541C; pub const TIOCCONS = 0x541D; pub const TIOCGSERIAL = 0x541E; pub const TIOCSSERIAL = 0x541F; pub const TIOCPKT = 0x5420; pub const FIONBIO = 0x5421; pub const TIOCNOTTY = 0x5422; pub const TIOCSETD = 0x5423; pub const TIOCGETD = 0x5424; pub const TCSBRKP = 0x5425; pub const TIOCSBRK = 0x5427; pub const TIOCCBRK = 0x5428; pub const TIOCGSID = 0x5429; pub const TIOCGRS485 = 0x542E; pub const TIOCSRS485 = 0x542F; pub const TIOCGPTN = 0x80045430; pub const TIOCSPTLCK = 0x40045431; pub const TIOCGDEV = 0x80045432; pub const TCGETX = 0x5432; pub const TCSETX = 0x5433; pub const TCSETXF = 0x5434; pub const TCSETXW = 0x5435; pub const TIOCSIG = 0x40045436; pub const TIOCVHANGUP = 0x5437; pub const TIOCGPKT = 0x80045438; pub const TIOCGPTLCK = 0x80045439; pub const TIOCGEXCL = 0x80045440; pub const sockaddr = c.sockaddr; pub const sockaddr_in = c.sockaddr_in; pub const sockaddr_in6 = c.sockaddr_in6; fn unsigned(s: i32) u32 { return @bitCast(u32, s); } fn signed(s: u32) i32 { return @bitCast(i32, s); } pub fn WEXITSTATUS(s: i32) i32 { return signed((unsigned(s) & 0xff00) >> 8); } pub fn WTERMSIG(s: i32) i32 { return signed(unsigned(s) & 0x7f); } pub fn WSTOPSIG(s: i32) i32 { return WEXITSTATUS(s); } pub fn WIFEXITED(s: i32) bool { return WTERMSIG(s) == 0; } pub fn WIFSTOPPED(s: i32) bool { return @intCast(u16, (((unsigned(s) & 0xffff) *% 0x10001) >> 8)) > 0x7f00; } pub fn WIFSIGNALED(s: i32) bool { return (unsigned(s) & 0xffff) -% 1 < 0xff; } pub const winsize = extern struct { ws_row: u16, ws_col: u16, ws_xpixel: u16, ws_ypixel: u16, }; /// Get the errno from a syscall return value, or 0 for no error. pub fn getErrno(r: usize) usize { const signed_r = @bitCast(isize, r); return if (signed_r > -4096 and signed_r < 0) @intCast(usize, -signed_r) else 0; } pub fn dup2(old: i32, new: i32) usize { return errnoWrap(c.dup2(old, new)); } pub fn chdir(path: [*]const u8) usize { return errnoWrap(c.chdir(path)); } pub fn execve(path: [*]const u8, argv: [*]const ?[*]const u8, envp: [*]const ?[*]const u8) usize { return errnoWrap(c.execve(path, argv, envp)); } pub fn fork() usize { return errnoWrap(c.fork()); } pub fn access(path: [*]const u8, mode: u32) usize { return errnoWrap(c.access(path, mode)); } pub fn getcwd(buf: [*]u8, size: usize) usize { return if (c.getcwd(buf, size) == null) @bitCast(usize, -isize(c._errno().*)) else 0; } pub fn getdents(fd: i32, dirp: [*]u8, count: usize) usize { return errnoWrap(@bitCast(isize, c.getdents(fd, drip, count))); } pub fn getdirentries(fd: i32, buf_ptr: [*]u8, buf_len: usize, basep: *i64) usize { return errnoWrap(@bitCast(isize, c.getdirentries(fd, buf_ptr, buf_len, basep))); } pub fn realpath(noalias filename: [*]const u8, noalias resolved_name: [*]u8) usize { return if (c.realpath(filename, resolved_name) == null) @bitCast(usize, -isize(c._errno().*)) else 0; } pub fn isatty(fd: i32) bool { return c.isatty(fd) != 0; } pub fn readlink(noalias path: [*]const u8, noalias buf_ptr: [*]u8, buf_len: usize) usize { return errnoWrap(c.readlink(path, buf_ptr, buf_len)); } pub fn mkdir(path: [*]const u8, mode: u32) usize { return errnoWrap(c.mkdir(path, mode)); } pub fn mmap(address: ?[*]u8, length: usize, prot: usize, flags: u32, fd: i32, offset: isize) usize { const ptr_result = c.mmap( @ptrCast(*c_void, address), length, @bitCast(c_int, @intCast(c_uint, prot)), @bitCast(c_int, c_uint(flags)), fd, offset, ); const isize_result = @bitCast(isize, @ptrToInt(ptr_result)); return errnoWrap(isize_result); } pub fn munmap(address: usize, length: usize) usize { return errnoWrap(c.munmap(@intToPtr(*c_void, address), length)); } pub fn read(fd: i32, buf: [*]u8, nbyte: usize) usize { return errnoWrap(c.read(fd, @ptrCast(*c_void, buf), nbyte)); } pub fn rmdir(path: [*]const u8) usize { return errnoWrap(c.rmdir(path)); } pub fn symlink(existing: [*]const u8, new: [*]const u8) usize { return errnoWrap(c.symlink(existing, new)); } pub fn pread(fd: i32, buf: [*]u8, nbyte: usize, offset: u64) usize { return errnoWrap(c.pread(fd, @ptrCast(*c_void, buf), nbyte, offset)); } pub fn preadv(fd: i32, iov: [*]const iovec, count: usize, offset: usize) usize { return errnoWrap(c.preadv(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset)); } pub fn pipe(fd: *[2]i32) usize { return pipe2(fd, 0); } pub fn pipe2(fd: *[2]i32, flags: u32) usize { comptime assert(i32.bit_count == c_int.bit_count); return errnoWrap(c.pipe2(@ptrCast(*[2]c_int, fd), flags)); } pub fn write(fd: i32, buf: [*]const u8, nbyte: usize) usize { return errnoWrap(c.write(fd, @ptrCast(*const c_void, buf), nbyte)); } pub fn pwrite(fd: i32, buf: [*]const u8, nbyte: usize, offset: u64) usize { return errnoWrap(c.pwrite(fd, @ptrCast(*const c_void, buf), nbyte, offset)); } pub fn pwritev(fd: i32, iov: [*]const iovec_const, count: usize, offset: usize) usize { return errnoWrap(c.pwritev(fd, @ptrCast(*const c_void, iov), @intCast(c_int, count), offset)); } pub fn rename(old: [*]const u8, new: [*]const u8) usize { return errnoWrap(c.rename(old, new)); } pub fn open(path: [*]const u8, flags: u32, mode: usize) usize { return errnoWrap(c.open(path, @bitCast(c_int, flags), mode)); } pub fn create(path: [*]const u8, perm: usize) usize { return arch.syscall2(SYS_creat, @ptrToInt(path), perm); } pub fn openat(dirfd: i32, path: [*]const u8, flags: usize, mode: usize) usize { return errnoWrap(c.openat(@bitCast(usize, isize(dirfd)), @ptrToInt(path), flags, mode)); } pub fn close(fd: i32) usize { return errnoWrap(c.close(fd)); } pub fn lseek(fd: i32, offset: isize, whence: c_int) usize { return errnoWrap(c.lseek(fd, offset, whence)); } pub fn exit(code: i32) noreturn { c.exit(code); } pub fn kill(pid: i32, sig: i32) usize { return errnoWrap(c.kill(pid, sig)); } pub fn unlink(path: [*]const u8) usize { return errnoWrap(c.unlink(path)); } pub fn waitpid(pid: i32, status: *i32, options: u32) usize { comptime assert(i32.bit_count == c_int.bit_count); return errnoWrap(c.waitpid(pid, @ptrCast(*c_int, status), @bitCast(c_int, options))); } pub fn nanosleep(req: *const timespec, rem: ?*timespec) usize { return errnoWrap(c.nanosleep(req, rem)); } pub fn clock_gettime(clk_id: i32, tp: *timespec) usize { return errnoWrap(c.clock_gettime(clk_id, tp)); } pub fn clock_getres(clk_id: i32, tp: *timespec) usize { return errnoWrap(c.clock_getres(clk_id, tp)); } pub fn setuid(uid: u32) usize { return errnoWrap(c.setuid(uid)); } pub fn setgid(gid: u32) usize { return errnoWrap(c.setgid(gid)); } pub fn setreuid(ruid: u32, euid: u32) usize { return errnoWrap(c.setreuid(ruid, euid)); } pub fn setregid(rgid: u32, egid: u32) usize { return errnoWrap(c.setregid(rgid, egid)); } const NSIG = 32; pub const SIG_ERR = @intToPtr(extern fn (i32) void, maxInt(usize)); pub const SIG_DFL = @intToPtr(extern fn (i32) void, 0); pub const SIG_IGN = @intToPtr(extern fn (i32) void, 1); /// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall. pub const Sigaction = extern struct { /// signal handler __sigaction_u: extern union { __sa_handler: extern fn (i32) void, __sa_sigaction: extern fn (i32, *__siginfo, usize) void, }, /// see signal options sa_flags: u32, /// signal mask to apply sa_mask: sigset_t, }; pub const _SIG_WORDS = 4; pub const _SIG_MAXSIG = 128; pub inline fn _SIG_IDX(sig: usize) usize { return sig - 1; } pub inline fn _SIG_WORD(sig: usize) usize { return_SIG_IDX(sig) >> 5; } pub inline fn _SIG_BIT(sig: usize) usize { return 1 << (_SIG_IDX(sig) & 31); } pub inline fn _SIG_VALID(sig: usize) usize { return sig <= _SIG_MAXSIG and sig > 0; } pub const sigset_t = extern struct { __bits: [_SIG_WORDS]u32, }; pub fn raise(sig: i32) usize { return errnoWrap(c.raise(sig)); } pub const Stat = c.Stat; pub const dirent = c.dirent; pub const timespec = c.timespec; pub fn fstat(fd: i32, buf: *c.Stat) usize { return errnoWrap(c.fstat(fd, buf)); } pub const iovec = extern struct { iov_base: [*]u8, iov_len: usize, }; pub const iovec_const = extern struct { iov_base: [*]const u8, iov_len: usize, }; // TODO avoid libc dependency pub fn kqueue() usize { return errnoWrap(c.kqueue()); } // TODO avoid libc dependency pub fn kevent(kq: i32, changelist: []const Kevent, eventlist: []Kevent, timeout: ?*const timespec) usize { return errnoWrap(c.kevent( kq, changelist.ptr, @intCast(c_int, changelist.len), eventlist.ptr, @intCast(c_int, eventlist.len), timeout, )); } // TODO avoid libc dependency pub fn sysctl(name: [*]c_int, namelen: c_uint, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) usize { return errnoWrap(c.sysctl(name, namelen, oldp, oldlenp, newp, newlen)); } // TODO avoid libc dependency pub fn sysctlbyname(name: [*]const u8, oldp: ?*c_void, oldlenp: ?*usize, newp: ?*c_void, newlen: usize) usize { return errnoWrap(c.sysctlbyname(name, oldp, oldlenp, newp, newlen)); } // TODO avoid libc dependency pub fn sysctlnametomib(name: [*]const u8, mibp: ?*c_int, sizep: ?*usize) usize { return errnoWrap(c.sysctlnametomib(name, wibp, sizep)); } // TODO avoid libc dependency /// Takes the return value from a syscall and formats it back in the way /// that the kernel represents it to libc. Errno was a mistake, let's make /// it go away forever. fn errnoWrap(value: isize) usize { return @bitCast(usize, if (value == -1) -isize(c._errno().*) else value); }