From 91f66733ca72c3b9550f0a299fc41a96701f1620 Mon Sep 17 00:00:00 2001 From: Fenrir Date: Mon, 3 Jul 2017 14:12:46 -0600 Subject: [PATCH] Add experimental newlib bindings --- src/unix/mod.rs | 7 + src/unix/newlib/arm/mod.rs | 5 + src/unix/newlib/mod.rs | 604 +++++++++++++++++++++++++++++++++++++ 3 files changed, 616 insertions(+) create mode 100644 src/unix/newlib/arm/mod.rs create mode 100644 src/unix/newlib/mod.rs diff --git a/src/unix/mod.rs b/src/unix/mod.rs index 82583b85..2e6aae4b 100644 --- a/src/unix/mod.rs +++ b/src/unix/mod.rs @@ -252,6 +252,10 @@ cfg_if! { #[link(name = "c")] #[link(name = "mxio")] extern {} + } else if #[cfg(target_env = "newlib")] { + #[link(name = "c")] + #[link(name = "m")] + extern {} } else { #[link(name = "c")] #[link(name = "m")] @@ -888,6 +892,9 @@ cfg_if! { if #[cfg(target_env = "uclibc")] { mod uclibc; pub use self::uclibc::*; + } else if #[cfg(target_env = "newlib")] { + mod newlib; + pub use self::newlib::*; } else if #[cfg(any(target_os = "linux", target_os = "android", target_os = "emscripten", diff --git a/src/unix/newlib/arm/mod.rs b/src/unix/newlib/arm/mod.rs new file mode 100644 index 00000000..372a48c4 --- /dev/null +++ b/src/unix/newlib/arm/mod.rs @@ -0,0 +1,5 @@ +pub type c_char = u8; +pub type wchar_t = u32; + +pub type c_long = i32; +pub type c_ulong = u32; diff --git a/src/unix/newlib/mod.rs b/src/unix/newlib/mod.rs new file mode 100644 index 00000000..1929bb79 --- /dev/null +++ b/src/unix/newlib/mod.rs @@ -0,0 +1,604 @@ +use dox::mem; + +pub type blkcnt_t = i32; +pub type blksize_t = i32; +pub type clock_t = i32; +pub type clockid_t = ::c_ulong; +pub type dev_t = u32; +pub type fsblkcnt_t = u64; +pub type fsfilcnt_t = u32; +pub type id_t = u32; +pub type ino_t = u32; +pub type key_t = ::c_int; +pub type loff_t = ::c_longlong; +pub type mode_t = ::c_uint; +pub type nfds_t = u32; +pub type nlink_t = ::c_ushort; +pub type off_t = i64; +pub type pthread_t = ::c_ulong; +pub type pthread_key_t = ::c_uint; +pub type rlim_t = u32; +pub type sa_family_t = u8; +pub type socklen_t = u32; +pub type speed_t = u32; +pub type suseconds_t = i32; +pub type tcflag_t = ::c_uint; +pub type time_t = i32; +pub type useconds_t = u32; + +s! { + pub struct sockaddr { + pub sa_family: sa_family_t, + pub sa_data: [::c_char; 14], + } + + pub struct sockaddr_in { + pub sin_family: sa_family_t, + pub sin_port: ::in_port_t, + pub sin_addr: ::in_addr, + pub sin_zero: [u8; 8], + } + + pub struct sockaddr_in6 { // Unverified + pub sin6_family: sa_family_t, + pub sin6_port: ::in_port_t, + pub sin6_flowinfo: u32, + pub sin6_addr: ::in6_addr, + pub sin6_scope_id: u32, + } + + pub struct sockaddr_storage { + pub ss_family: sa_family_t, + pub __ss_padding: [u8; 26], + } + + pub struct addrinfo { + pub ai_flags: ::c_int, + pub ai_family: ::c_int, + pub ai_socktype: ::c_int, + pub ai_protocol: ::c_int, + pub ai_addrlen: socklen_t, + pub ai_canonname: *mut ::c_char, + pub ai_addr: *mut sockaddr, + pub ai_next: *mut addrinfo, + } + + pub struct ip_mreq { + pub imr_multiaddr: in_addr, + pub imr_interface: in_addr, + } + + pub struct linger { + pub l_onoff: ::c_int, + pub l_linger: ::c_int, + } + + pub struct in_addr { + pub s_addr: ::in_addr_t, + } + + pub struct hostent { + pub h_name: *mut ::c_char, + pub h_aliases: *mut *mut ::c_char, + pub h_addrtype: ::c_int, + pub h_length: ::c_int, + pub h_addr_list: *mut *mut ::c_char, + pub h_addr: *mut ::c_char, + } + + pub struct pollfd { + pub fd: ::c_int, + pub events: ::c_int, + pub revents: ::c_int, + } + + pub struct lconv { + pub decimal_point: *mut ::c_char, + pub thousands_sep: *mut ::c_char, + pub grouping: *mut ::c_char, + pub int_curr_symbol: *mut ::c_char, + pub currency_symbol: *mut ::c_char, + pub mon_decimal_point: *mut ::c_char, + pub mon_thousands_sep: *mut ::c_char, + pub mon_grouping: *mut ::c_char, + pub positive_sign: *mut ::c_char, + pub negative_sign: *mut ::c_char, + pub int_frac_digits: ::c_char, + pub frac_digits: ::c_char, + pub p_cs_precedes: ::c_char, + pub p_sep_by_space: ::c_char, + pub n_cs_precedes: ::c_char, + pub n_sep_by_space: ::c_char, + pub p_sign_posn: ::c_char, + pub n_sign_posn: ::c_char, + pub int_n_cs_precedes: ::c_char, + pub int_n_sep_by_space: ::c_char, + pub int_n_sign_posn: ::c_char, + pub int_p_cs_precedes: ::c_char, + pub int_p_sep_by_space: ::c_char, + pub int_p_sign_posn: ::c_char, + } + + pub struct tm { + pub tm_sec: ::c_int, + pub tm_min: ::c_int, + pub tm_hour: ::c_int, + pub tm_mday: ::c_int, + pub tm_mon: ::c_int, + pub tm_year: ::c_int, + pub tm_wday: ::c_int, + pub tm_yday: ::c_int, + pub tm_isdst: ::c_int, + } + + pub struct stat { + pub st_dev: ::dev_t, + pub st_ino: ::ino_t, + pub st_mode: ::mode_t, + pub st_nlink: ::nlink_t, + pub st_uid: ::uid_t, + pub st_gid: ::gid_t, + pub st_rdev: dev_t, + pub st_size: off_t, + pub st_atime: time_t, + pub st_spare1: ::c_long, + pub st_mtime: time_t, + pub st_spare2: ::c_long, + pub st_ctime: time_t, + pub st_spare3: ::c_long, + pub st_blksize: blksize_t, + pub st_blocks: blkcnt_t, + pub st_spare4: [::c_long; 2usize], + } + + pub struct statvfs { + pub f_bsize: ::c_ulong, + pub f_frsize: ::c_ulong, + pub f_blocks: fsblkcnt_t, + pub f_bfree: fsblkcnt_t, + pub f_bavail: fsblkcnt_t, + pub f_files: fsfilcnt_t, + pub f_ffree: fsfilcnt_t, + pub f_favail: fsfilcnt_t, + pub f_fsid: ::c_ulong, + pub f_flag: ::c_ulong, + pub f_namemax: ::c_ulong, + } + + pub struct sigset_t { + __val: [::c_ulong; 16], + } + + pub struct sigaction { + pub sa_handler: extern fn(arg1: ::c_int), + pub sa_mask: sigset_t, + pub sa_flags: ::c_int, + } + + pub struct dirent { + pub d_ino: ino_t, + pub d_type: ::c_uchar, + pub d_name: [::c_char; 256usize], + } + + pub struct stack_t { + pub ss_sp: *mut ::c_void, + pub ss_flags: ::c_int, + pub ss_size: usize, + } + + pub struct fd_set { // Unverified + fds_bits: [::c_ulong; FD_SETSIZE / ULONG_SIZE], + } + + pub struct passwd { // Unverified + pub pw_name: *mut ::c_char, + pub pw_passwd: *mut ::c_char, + pub pw_uid: ::uid_t, + pub pw_gid: ::gid_t, + pub pw_gecos: *mut ::c_char, + pub pw_dir: *mut ::c_char, + pub pw_shell: *mut ::c_char, + } + + pub struct termios { // Unverified + pub c_iflag: ::tcflag_t, + pub c_oflag: ::tcflag_t, + pub c_cflag: ::tcflag_t, + pub c_lflag: ::tcflag_t, + pub c_line: ::cc_t, + pub c_cc: [::cc_t; ::NCCS], + } + + pub struct sem_t { // Unverified + __size: [::c_char; 16], + } + + pub struct Dl_info { // Unverified + pub dli_fname: *const ::c_char, + pub dli_fbase: *mut ::c_void, + pub dli_sname: *const ::c_char, + pub dli_saddr: *mut ::c_void, + } + + pub struct utsname { // Unverified + pub sysname: [::c_char; 65], + pub nodename: [::c_char; 65], + pub release: [::c_char; 65], + pub version: [::c_char; 65], + pub machine: [::c_char; 65], + pub domainname: [::c_char; 65] + } + + pub struct cpu_set_t { // Unverified + bits: [u32; 32], + } + + pub struct pthread_attr_t { // Unverified + __size: [u64; 7] + } + + pub struct pthread_mutex_t { // Unverified + #[cfg(any(target_arch = "mips", target_arch = "arm", + target_arch = "powerpc"))] + __align: [::c_long; 0], + #[cfg(not(any(target_arch = "mips", target_arch = "arm", + target_arch = "powerpc")))] + __align: [::c_longlong; 0], + size: [u8; __SIZEOF_PTHREAD_MUTEX_T], + } + + pub struct pthread_rwlock_t { // Unverified + #[cfg(any(target_arch = "mips", target_arch = "arm", + target_arch = "powerpc"))] + __align: [::c_long; 0], + #[cfg(not(any(target_arch = "mips", target_arch = "arm", + target_arch = "powerpc")))] + __align: [::c_longlong; 0], + size: [u8; __SIZEOF_PTHREAD_RWLOCK_T], + } + + pub struct pthread_mutexattr_t { // Unverified + #[cfg(any(target_arch = "x86_64", target_arch = "powerpc64", + target_arch = "mips64", target_arch = "s390x", + target_arch = "sparc64"))] + __align: [::c_int; 0], + #[cfg(not(any(target_arch = "x86_64", target_arch = "powerpc64", + target_arch = "mips64", target_arch = "s390x", + target_arch = "sparc64")))] + __align: [::c_long; 0], + size: [u8; __SIZEOF_PTHREAD_MUTEXATTR_T], + } + + pub struct pthread_rwlockattr_t { // Unverified + __lockkind: ::c_int, + __pshared: ::c_int, + } + + pub struct pthread_cond_t { // Unverified + __align: [::c_longlong; 0], + size: [u8; __SIZEOF_PTHREAD_COND_T], + } + + pub struct pthread_condattr_t { // Unverified + __align: [::c_int; 0], + size: [u8; __SIZEOF_PTHREAD_CONDATTR_T], + } + +} + +// unverified constants +pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t { + __align: [], + size: [0; __SIZEOF_PTHREAD_MUTEX_T], +}; +pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = pthread_cond_t { + __align: [], + size: [0; __SIZEOF_PTHREAD_COND_T], +}; +pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = pthread_rwlock_t { + __align: [], + size: [0; __SIZEOF_PTHREAD_RWLOCK_T], +}; +pub const NCCS: usize = 32; +pub const __SIZEOF_PTHREAD_ATTR_T: usize = 56; +pub const __SIZEOF_PTHREAD_MUTEX_T: usize = 40; +pub const __SIZEOF_PTHREAD_MUTEXATTR_T: usize = 4; +pub const __SIZEOF_PTHREAD_COND_T: usize = 48; +pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4; +pub const __SIZEOF_PTHREAD_RWLOCK_T: usize = 56; +pub const __SIZEOF_PTHREAD_RWLOCKATTR_T: usize = 8; +pub const __SIZEOF_PTHREAD_BARRIER_T: usize = 32; +pub const __SIZEOF_PTHREAD_BARRIERATTR_T: usize = 4; +pub const __PTHREAD_MUTEX_HAVE_PREV: usize = 1; +pub const __PTHREAD_RWLOCK_INT_FLAGS_SHARED: usize = 1; +pub const PTHREAD_MUTEX_NORMAL: ::c_int = 0; +pub const PTHREAD_MUTEX_RECURSIVE: ::c_int = 1; +pub const PTHREAD_MUTEX_ERRORCHECK: ::c_int = 2; +pub const FD_SETSIZE: usize = 1024; +// intentionally not public, only used for fd_set +const ULONG_SIZE: usize = 32; + +// Other constants +pub const EPERM: ::c_int = 1; +pub const ENOENT: ::c_int = 2; +pub const ESRCH: ::c_int = 3; +pub const EINTR: ::c_int = 4; +pub const EIO: ::c_int = 5; +pub const ENXIO: ::c_int = 6; +pub const E2BIG: ::c_int = 7; +pub const ENOEXEC: ::c_int = 8; +pub const EBADF: ::c_int = 9; +pub const ECHILD: ::c_int = 10; +pub const EAGAIN: ::c_int = 11; +pub const ENOMEM: ::c_int = 12; +pub const EACCES: ::c_int = 13; +pub const EFAULT: ::c_int = 14; +pub const EBUSY: ::c_int = 16; +pub const EEXIST: ::c_int = 17; +pub const EXDEV: ::c_int = 18; +pub const ENODEV: ::c_int = 19; +pub const ENOTDIR: ::c_int = 20; +pub const EISDIR: ::c_int = 21; +pub const EINVAL: ::c_int = 22; +pub const ENFILE: ::c_int = 23; +pub const EMFILE: ::c_int = 24; +pub const ENOTTY: ::c_int = 25; +pub const ETXTBSY: ::c_int = 26; +pub const EFBIG: ::c_int = 27; +pub const ENOSPC: ::c_int = 28; +pub const ESPIPE: ::c_int = 29; +pub const EROFS: ::c_int = 30; +pub const EMLINK: ::c_int = 31; +pub const EPIPE: ::c_int = 32; +pub const EDOM: ::c_int = 33; +pub const ERANGE: ::c_int = 34; +pub const ENOMSG: ::c_int = 35; +pub const EIDRM: ::c_int = 36; +pub const EDEADLK: ::c_int = 45; +pub const ENOLCK: ::c_int = 46; +pub const ENOSTR: ::c_int = 60; +pub const ENODATA: ::c_int = 61; +pub const ETIME: ::c_int = 62; +pub const ENOSR: ::c_int = 63; +pub const ENOLINK: ::c_int = 67; +pub const EPROTO: ::c_int = 71; +pub const EMULTIHOP: ::c_int = 74; +pub const EBADMSG: ::c_int = 77; +pub const EFTYPE: ::c_int = 79; +pub const ENOSYS: ::c_int = 88; +pub const ENOTEMPTY: ::c_int = 90; +pub const ENAMETOOLONG: ::c_int = 91; +pub const ELOOP: ::c_int = 92; +pub const EOPNOTSUPP: ::c_int = 95; +pub const EPFNOSUPPORT: ::c_int = 96; +pub const ECONNRESET: ::c_int = 104; +pub const ENOBUFS: ::c_int = 105; +pub const EAFNOSUPPORT: ::c_int = 106; +pub const EPROTOTYPE: ::c_int = 107; +pub const ENOTSOCK: ::c_int = 108; +pub const ENOPROTOOPT: ::c_int = 109; +pub const ECONNREFUSED: ::c_int = 111; +pub const EADDRINUSE: ::c_int = 112; +pub const ECONNABORTED: ::c_int = 113; +pub const ENETUNREACH: ::c_int = 114; +pub const ENETDOWN: ::c_int = 115; +pub const ETIMEDOUT: ::c_int = 116; +pub const EHOSTDOWN: ::c_int = 117; +pub const EHOSTUNREACH: ::c_int = 118; +pub const EINPROGRESS: ::c_int = 119; +pub const EALREADY: ::c_int = 120; +pub const EDESTADDRREQ: ::c_int = 121; +pub const EMSGSIZE: ::c_int = 122; +pub const EPROTONOSUPPORT: ::c_int = 123; +pub const EADDRNOTAVAIL: ::c_int = 125; +pub const ENETRESET: ::c_int = 126; +pub const EISCONN: ::c_int = 127; +pub const ENOTCONN: ::c_int = 128; +pub const ETOOMANYREFS: ::c_int = 129; +pub const EDQUOT: ::c_int = 132; +pub const ESTALE: ::c_int = 133; +pub const ENOTSUP: ::c_int = 134; +pub const EILSEQ: ::c_int = 138; +pub const EOVERFLOW: ::c_int = 139; +pub const ECANCELED: ::c_int = 140; +pub const ENOTRECOVERABLE: ::c_int = 141; +pub const EOWNERDEAD: ::c_int = 142; +pub const EWOULDBLOCK: ::c_int = 11; + +pub const F_DUPFD: ::c_int = 0; +pub const F_GETFD: ::c_int = 1; +pub const F_SETFD: ::c_int = 2; +pub const F_GETFL: ::c_int = 3; +pub const F_SETFL: ::c_int = 4; +pub const F_GETOWN: ::c_int = 5; +pub const F_SETOWN: ::c_int = 6; +pub const F_GETLK: ::c_int = 7; +pub const F_SETLK: ::c_int = 8; +pub const F_SETLKW: ::c_int = 9; +pub const F_RGETLK: ::c_int = 10; +pub const F_RSETLK: ::c_int = 11; +pub const F_CNVT: ::c_int = 12; +pub const F_RSETLKW: ::c_int = 13; +pub const F_DUPFD_CLOEXEC: ::c_int = 14; + +pub const O_RDONLY: ::c_int = 0; +pub const O_WRONLY: ::c_int = 1; +pub const O_RDWR: ::c_int = 2; +pub const O_APPEND: ::c_int = 8; +pub const O_CREAT: ::c_int = 512; +pub const O_TRUNC: ::c_int = 1024; +pub const O_EXCL: ::c_int = 2048; +pub const O_SYNC: ::c_int = 8192; +pub const O_NONBLOCK: ::c_int = 16384; + +pub const O_ACCMODE: ::c_int = 3; +pub const O_CLOEXEC: ::c_int = 0x80000; + +pub const STDIN_FILENO: ::c_int = 0; +pub const STDOUT_FILENO: ::c_int = 1; +pub const STDERR_FILENO: ::c_int = 2; + +pub const SEEK_SET: ::c_int = 0; +pub const SEEK_CUR: ::c_int = 1; +pub const SEEK_END: ::c_int = 2; + +pub const FIONBIO: ::c_int = 1; + +pub const S_BLKSIZE: ::mode_t = 1024; +pub const S_IREAD: ::mode_t = 256; +pub const S_IWRITE: ::mode_t = 128; +pub const S_IEXEC: ::mode_t = 64; +pub const S_ENFMT: ::mode_t = 1024; +pub const S_IFMT: ::mode_t = 61440; +pub const S_IFDIR: ::mode_t = 16384; +pub const S_IFCHR: ::mode_t = 8192; +pub const S_IFBLK: ::mode_t = 24576; +pub const S_IFREG: ::mode_t = 32768; +pub const S_IFLNK: ::mode_t = 40960; +pub const S_IFSOCK: ::mode_t = 49152; +pub const S_IFIFO: ::mode_t = 4096; +pub const S_IRUSR: ::mode_t = 256; +pub const S_IWUSR: ::mode_t = 128; +pub const S_IXUSR: ::mode_t = 64; +pub const S_IRGRP: ::mode_t = 32; +pub const S_IWGRP: ::mode_t = 16; +pub const S_IXGRP: ::mode_t = 8; +pub const S_IROTH: ::mode_t = 4; +pub const S_IWOTH: ::mode_t = 2; +pub const S_IXOTH: ::mode_t = 1; + +pub const SOL_SOCKET: ::c_int = 65535; +pub const SOL_TCP: ::c_int = 6; + +pub const PF_UNSPEC: ::c_int = 0; +pub const PF_INET: ::c_int = 2; +pub const PF_INET6: ::c_int = 23; + +pub const AF_UNSPEC: ::c_int = 0; +pub const AF_INET: ::c_int = 2; +pub const AF_INET6: ::c_int = 23; + +pub const SOCK_STREAM: ::c_int = 1; +pub const SOCK_DGRAM: ::c_int = 2; + +pub const MSG_OOB: ::c_int = 1; +pub const MSG_PEEK: ::c_int = 2; +pub const MSG_DONTWAIT: ::c_int = 4; +pub const MSG_DONTROUTE: ::c_int = 0; +pub const MSG_WAITALL: ::c_int = 0; +pub const MSG_MORE: ::c_int = 0; +pub const MSG_NOSIGNAL: ::c_int = 0; + +pub const SHUT_RD: ::c_int = 0; +pub const SHUT_WR: ::c_int = 1; +pub const SHUT_RDWR: ::c_int = 2; + +pub const SO_REUSEADDR: ::c_int = 4; +pub const SO_LINGER: ::c_int = 128; +pub const SO_OOBINLINE: ::c_int = 256; +pub const SO_SNDBUF: ::c_int = 4097; +pub const SO_RCVBUF: ::c_int = 4098; +pub const SO_SNDLOWAT: ::c_int = 4099; +pub const SO_RCVLOWAT: ::c_int = 4100; +pub const SO_TYPE: ::c_int = 4104; +pub const SO_ERROR: ::c_int = 4105; + +pub const SOCK_CLOEXEC: ::c_int = O_CLOEXEC; + +pub const INADDR_LOOPBACK: ::c_int = 2130706433; +pub const INADDR_ANY: ::c_int = 0; +pub const INADDR_BROADCAST: ::c_int = 4294967295; +pub const INADDR_NONE: ::c_int = 4294967295; + +pub const INET_ADDRSTRLEN: ::c_int = 16; + +pub const IPPROTO_IP: ::c_int = 0; +pub const IPPROTO_UDP: ::c_int = 17; +pub const IPPROTO_TCP: ::c_int = 6; + +pub const TCP_NODELAY: ::c_int = 8193; +pub const TCP_MAXSEG: ::c_int = 8194; + +pub const IP_TOS: ::c_int = 7; +pub const IP_TTL: ::c_int = 8; +pub const IP_MULTICAST_LOOP: ::c_int = 9; +pub const IP_MULTICAST_TTL: ::c_int = 10; +pub const IP_ADD_MEMBERSHIP: ::c_int = 11; +pub const IP_DROP_MEMBERSHIP: ::c_int = 12; + +pub const HOST_NOT_FOUND: ::c_int = 1; +pub const NO_DATA: ::c_int = 2; +pub const NO_ADDRESS: ::c_int = 2; +pub const NO_RECOVERY: ::c_int = 3; +pub const TRY_AGAIN: ::c_int = 4; + +pub const AI_PASSIVE: ::c_int = 1; +pub const AI_CANONNAME: ::c_int = 2; +pub const AI_NUMERICHOST: ::c_int = 4; +pub const AI_NUMERICSERV: ::c_int = 0; +pub const AI_ADDRCONFIG: ::c_int = 0; + +pub const NI_MAXHOST: ::c_int = 1025; +pub const NI_MAXSERV: ::c_int = 32; +pub const NI_NOFQDN: ::c_int = 1; +pub const NI_NUMERICHOST: ::c_int = 2; +pub const NI_NAMEREQD: ::c_int = 4; +pub const NI_NUMERICSERV: ::c_int = 0; +pub const NI_DGRAM: ::c_int = 0; + +pub const EAI_FAMILY: ::c_int = -303; +pub const EAI_MEMORY: ::c_int = -304; +pub const EAI_NONAME: ::c_int = -305; +pub const EAI_SOCKTYPE: ::c_int = -307; + +f! { + pub fn FD_CLR(fd: ::c_int, set: *mut fd_set) -> () { + let bits = mem::size_of_val(&(*set).fds_bits[0]) * 8; + let fd = fd as usize; + (*set).fds_bits[fd / bits] &= !(1 << (fd % bits)); + return + } + + pub fn FD_ISSET(fd: ::c_int, set: *mut fd_set) -> bool { + let bits = mem::size_of_val(&(*set).fds_bits[0]) * 8; + let fd = fd as usize; + return ((*set).fds_bits[fd / bits] & (1 << (fd % bits))) != 0 + } + + pub fn FD_SET(fd: ::c_int, set: *mut fd_set) -> () { + let bits = mem::size_of_val(&(*set).fds_bits[0]) * 8; + let fd = fd as usize; + (*set).fds_bits[fd / bits] |= 1 << (fd % bits); + return + } + + pub fn FD_ZERO(set: *mut fd_set) -> () { + for slot in (*set).fds_bits.iter_mut() { + *slot = 0; + } + } +} + +extern { + pub fn bind(fd: ::c_int, addr: *const sockaddr, len: socklen_t) -> ::c_int; + pub fn closesocket(sockfd: ::c_int) -> ::c_int; + pub fn ioctl(fd: ::c_int, request: ::c_ulong, ...) -> ::c_int; + pub fn recvfrom(fd: ::c_int, buf: *mut ::c_void, n: usize, flags: ::c_int, + addr: *mut sockaddr, addr_len: *mut socklen_t) -> isize; + pub fn getnameinfo(sa: *const sockaddr, salen: socklen_t, + host: *mut ::c_char, hostlen: socklen_t, + serv: *mut ::c_char, servlen: socklen_t, + flags: ::c_int) -> ::c_int; +} + +cfg_if! { + if #[cfg(target_arch = "arm")] { + mod arm; + pub use self::arm::*; + } else { + // Only tested on ARM so far. Other platforms might have different + // definitions for types and constants. + pub use target_arch_not_implemented; + } +}