| //! Definitions found commonly among almost all Unix derivatives | 
 | //! | 
 | //! More functions and definitions can be found in the more specific modules | 
 | //! according to the platform in question. | 
 |  | 
 | use dox::Option; | 
 |  | 
 | pub type pid_t = i32; | 
 | pub type uid_t = u32; | 
 | pub type gid_t = u32; | 
 | pub type in_addr_t = u32; | 
 | pub type in_port_t = u16; | 
 | pub type sighandler_t = ::size_t; | 
 | pub type cc_t = ::c_uchar; | 
 |  | 
 | pub enum DIR {} | 
 | pub enum locale_t {} | 
 |  | 
 | s! { | 
 |     pub struct utimbuf { | 
 |         pub actime: time_t, | 
 |         pub modtime: time_t, | 
 |     } | 
 |  | 
 |     pub struct timeval { | 
 |         pub tv_sec: time_t, | 
 |         pub tv_usec: suseconds_t, | 
 |     } | 
 |  | 
 |     pub struct timespec { | 
 |         pub tv_sec: time_t, | 
 |         pub tv_nsec: c_long, | 
 |     } | 
 |  | 
 |     pub struct rlimit { | 
 |         pub rlim_cur: rlim_t, | 
 |         pub rlim_max: rlim_t, | 
 |     } | 
 |  | 
 |     pub struct rusage { | 
 |         pub ru_utime: timeval, | 
 |         pub ru_stime: timeval, | 
 |         pub ru_maxrss: c_long, | 
 |         pub ru_ixrss: c_long, | 
 |         pub ru_idrss: c_long, | 
 |         pub ru_isrss: c_long, | 
 |         pub ru_minflt: c_long, | 
 |         pub ru_majflt: c_long, | 
 |         pub ru_nswap: c_long, | 
 |         pub ru_inblock: c_long, | 
 |         pub ru_oublock: c_long, | 
 |         pub ru_msgsnd: c_long, | 
 |         pub ru_msgrcv: c_long, | 
 |         pub ru_nsignals: c_long, | 
 |         pub ru_nvcsw: c_long, | 
 |         pub ru_nivcsw: c_long, | 
 |  | 
 |         #[cfg(any(target_env = "musl"))] | 
 |         __reserved: [c_long; 16], | 
 |     } | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", repr(packed))] | 
 |     pub struct in_addr { | 
 |         pub s_addr: in_addr_t, | 
 |     } | 
 |  | 
 |     pub struct in6_addr { | 
 |         pub s6_addr: [u8; 16], | 
 |         __align: [u32; 0], | 
 |     } | 
 |  | 
 |     pub struct ip_mreq { | 
 |         pub imr_multiaddr: in_addr, | 
 |         pub imr_interface: in_addr, | 
 |     } | 
 |  | 
 |     pub struct ipv6_mreq { | 
 |         pub ipv6mr_multiaddr: in6_addr, | 
 |         #[cfg(target_os = "android")] | 
 |         pub ipv6mr_interface: ::c_int, | 
 |         #[cfg(not(target_os = "android"))] | 
 |         pub ipv6mr_interface: ::c_uint, | 
 |     } | 
 |  | 
 |     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 struct iovec { | 
 |         pub iov_base: *mut ::c_void, | 
 |         pub iov_len: ::size_t, | 
 |     } | 
 |  | 
 |     pub struct pollfd { | 
 |         pub fd: ::c_int, | 
 |         pub events: ::c_short, | 
 |         pub revents: ::c_short, | 
 |     } | 
 |  | 
 |     pub struct winsize { | 
 |         pub ws_row: ::c_ushort, | 
 |         pub ws_col: ::c_ushort, | 
 |         pub ws_xpixel: ::c_ushort, | 
 |         pub ws_ypixel: ::c_ushort, | 
 |     } | 
 |  | 
 |     pub struct linger { | 
 |         pub l_onoff: ::c_int, | 
 |         pub l_linger: ::c_int, | 
 |     } | 
 | } | 
 |  | 
 | pub const SIG_DFL: sighandler_t = 0 as sighandler_t; | 
 | pub const SIG_IGN: sighandler_t = 1 as sighandler_t; | 
 | pub const SIG_ERR: sighandler_t = !0 as sighandler_t; | 
 |  | 
 | pub const DT_FIFO: u8 = 1; | 
 | pub const DT_CHR: u8 = 2; | 
 | pub const DT_DIR: u8 = 4; | 
 | pub const DT_BLK: u8 = 6; | 
 | pub const DT_REG: u8 = 8; | 
 | pub const DT_LNK: u8 = 10; | 
 | pub const DT_SOCK: u8 = 12; | 
 |  | 
 | pub const FD_CLOEXEC: ::c_int = 0x1; | 
 |  | 
 | pub const USRQUOTA: ::c_int = 0; | 
 | pub const GRPQUOTA: ::c_int = 1; | 
 |  | 
 | pub const SIGIOT: ::c_int = 6; | 
 |  | 
 | pub const S_ISUID: ::c_int = 0x800; | 
 | pub const S_ISGID: ::c_int = 0x400; | 
 | pub const S_ISVTX: ::c_int = 0x200; | 
 |  | 
 | pub const POLLIN: ::c_short = 0x1; | 
 | pub const POLLPRI: ::c_short = 0x2; | 
 | pub const POLLOUT: ::c_short = 0x4; | 
 | pub const POLLERR: ::c_short = 0x8; | 
 | pub const POLLHUP: ::c_short = 0x10; | 
 | pub const POLLNVAL: ::c_short = 0x20; | 
 |  | 
 | pub const IF_NAMESIZE: ::size_t = 16; | 
 |  | 
 | pub const RTLD_LAZY: ::c_int = 0x1; | 
 |  | 
 | pub const LOG_EMERG: ::c_int = 0; | 
 | pub const LOG_ALERT: ::c_int = 1; | 
 | pub const LOG_CRIT: ::c_int = 2; | 
 | pub const LOG_ERR: ::c_int = 3; | 
 | pub const LOG_WARNING: ::c_int = 4; | 
 | pub const LOG_NOTICE: ::c_int = 5; | 
 | pub const LOG_INFO: ::c_int = 6; | 
 | pub const LOG_DEBUG: ::c_int = 7; | 
 |  | 
 | pub const LOG_KERN: ::c_int = 0; | 
 | pub const LOG_USER: ::c_int = 1 << 3; | 
 | pub const LOG_MAIL: ::c_int = 2 << 3; | 
 | pub const LOG_DAEMON: ::c_int = 3 << 3; | 
 | pub const LOG_AUTH: ::c_int = 4 << 3; | 
 | pub const LOG_SYSLOG: ::c_int = 5 << 3; | 
 | pub const LOG_LPR: ::c_int = 6 << 3; | 
 | pub const LOG_NEWS: ::c_int = 7 << 3; | 
 | pub const LOG_UUCP: ::c_int = 8 << 3; | 
 | pub const LOG_LOCAL0: ::c_int = 16 << 3; | 
 | pub const LOG_LOCAL1: ::c_int = 17 << 3; | 
 | pub const LOG_LOCAL2: ::c_int = 18 << 3; | 
 | pub const LOG_LOCAL3: ::c_int = 19 << 3; | 
 | pub const LOG_LOCAL4: ::c_int = 20 << 3; | 
 | pub const LOG_LOCAL5: ::c_int = 21 << 3; | 
 | pub const LOG_LOCAL6: ::c_int = 22 << 3; | 
 | pub const LOG_LOCAL7: ::c_int = 23 << 3; | 
 |  | 
 | pub const LOG_PID: ::c_int = 0x01; | 
 | pub const LOG_CONS: ::c_int = 0x02; | 
 | pub const LOG_ODELAY: ::c_int = 0x04; | 
 | pub const LOG_NDELAY: ::c_int = 0x08; | 
 | pub const LOG_NOWAIT: ::c_int = 0x10; | 
 |  | 
 | pub const LOG_PRIMASK: ::c_int = 7; | 
 | pub const LOG_FACMASK: ::c_int = 0x3f8; | 
 |  | 
 | pub const PRIO_PROCESS: ::c_int = 0; | 
 | pub const PRIO_PGRP: ::c_int = 1; | 
 | pub const PRIO_USER: ::c_int = 2; | 
 |  | 
 | pub const PRIO_MIN: ::c_int = -20; | 
 | pub const PRIO_MAX: ::c_int = 20; | 
 |  | 
 | cfg_if! { | 
 |     if #[cfg(dox)] { | 
 |         // on dox builds don't pull in anything | 
 |     } else if #[cfg(all(not(stdbuild), feature = "use_std"))] { | 
 |         // cargo build, don't pull in anything extra as the libstd  dep | 
 |         // already pulls in all libs. | 
 |     } else if #[cfg(any(all(target_env = "musl", not(target_arch = "mips"))))] { | 
 |         #[link(name = "c", kind = "static")] | 
 |         extern {} | 
 |     } else if #[cfg(target_os = "emscripten")] { | 
 |         #[link(name = "c")] | 
 |         extern {} | 
 |     } else if #[cfg(all(target_os = "netbsd", target_vendor = "rumprun"))] { | 
 |         // Since we don't use -nodefaultlibs on Rumprun, libc is always pulled | 
 |         // in automatically by the linker. We avoid passing it explicitly, as it | 
 |         // causes some versions of binutils to crash with an assertion failure. | 
 |         #[link(name = "m")] | 
 |         extern {} | 
 |     } else if #[cfg(any(target_os = "macos", | 
 |                         target_os = "ios", | 
 |                         target_os = "android", | 
 |                         target_os = "openbsd", | 
 |                         target_os = "bitrig"))] { | 
 |         #[link(name = "c")] | 
 |         #[link(name = "m")] | 
 |         extern {} | 
 |     } else { | 
 |         #[link(name = "c")] | 
 |         #[link(name = "m")] | 
 |         #[link(name = "rt")] | 
 |         extern {} | 
 |     } | 
 | } | 
 |  | 
 | extern { | 
 |     pub fn fprintf(stream: *mut ::FILE, | 
 |                    format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn printf(format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn snprintf(s: *mut ::c_char, n: ::size_t, | 
 |                     format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn sprintf(s: *mut ::c_char, format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn fscanf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn scanf(format: *const ::c_char, ...) -> ::c_int; | 
 |     pub fn sscanf(s: *const ::c_char, format: *const ::c_char, ...) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__socket30")] | 
 |     pub fn socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "connect$UNIX2003")] | 
 |     pub fn connect(socket: ::c_int, address: *const sockaddr, | 
 |                    len: socklen_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "bind$UNIX2003")] | 
 |     pub fn bind(socket: ::c_int, address: *const sockaddr, | 
 |                 address_len: socklen_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "listen$UNIX2003")] | 
 |     pub fn listen(socket: ::c_int, backlog: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "accept$UNIX2003")] | 
 |     pub fn accept(socket: ::c_int, address: *mut sockaddr, | 
 |                   address_len: *mut socklen_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "getpeername$UNIX2003")] | 
 |     pub fn getpeername(socket: ::c_int, address: *mut sockaddr, | 
 |                        address_len: *mut socklen_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "getsockname$UNIX2003")] | 
 |     pub fn getsockname(socket: ::c_int, address: *mut sockaddr, | 
 |                        address_len: *mut socklen_t) -> ::c_int; | 
 |     pub fn setsockopt(socket: ::c_int, level: ::c_int, name: ::c_int, | 
 |                       value: *const ::c_void, | 
 |                       option_len: socklen_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "socketpair$UNIX2003")] | 
 |     pub fn socketpair(domain: ::c_int, type_: ::c_int, protocol: ::c_int, | 
 |                       socket_vector: *mut ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "sendto$UNIX2003")] | 
 |     pub fn sendto(socket: ::c_int, buf: *const ::c_void, len: ::size_t, | 
 |                   flags: ::c_int, addr: *const sockaddr, | 
 |                   addrlen: socklen_t) -> ::ssize_t; | 
 |     pub fn shutdown(socket: ::c_int, how: ::c_int) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "chmod$UNIX2003")] | 
 |     pub fn chmod(path: *const c_char, mode: mode_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "fchmod$UNIX2003")] | 
 |     pub fn fchmod(fd: ::c_int, mode: mode_t) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "macos", link_name = "fstat$INODE64")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__fstat50")] | 
 |     pub fn fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int; | 
 |  | 
 |     pub fn mkdir(path: *const c_char, mode: mode_t) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "macos", link_name = "stat$INODE64")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__stat50")] | 
 |     pub fn stat(path: *const c_char, buf: *mut stat) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "popen$UNIX2003")] | 
 |     pub fn popen(command: *const c_char, | 
 |                  mode: *const c_char) -> *mut ::FILE; | 
 |     pub fn pclose(stream: *mut ::FILE) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "fdopen$UNIX2003")] | 
 |     pub fn fdopen(fd: ::c_int, mode: *const c_char) -> *mut ::FILE; | 
 |     pub fn fileno(stream: *mut ::FILE) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "open$UNIX2003")] | 
 |     pub fn open(path: *const c_char, oflag: ::c_int, ...) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "creat$UNIX2003")] | 
 |     pub fn creat(path: *const c_char, mode: mode_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "fcntl$UNIX2003")] | 
 |     pub fn fcntl(fd: ::c_int, cmd: ::c_int, ...) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "opendir$INODE64")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "opendir$INODE64$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__opendir30")] | 
 |     pub fn opendir(dirname: *const c_char) -> *mut ::DIR; | 
 |     #[cfg_attr(target_os = "macos", link_name = "readdir_r$INODE64")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__readdir_r30")] | 
 |     pub fn readdir_r(dirp: *mut ::DIR, entry: *mut ::dirent, | 
 |                      result: *mut *mut ::dirent) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "closedir$UNIX2003")] | 
 |     pub fn closedir(dirp: *mut ::DIR) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "rewinddir$INODE64")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "rewinddir$INODE64$UNIX2003")] | 
 |     pub fn rewinddir(dirp: *mut ::DIR); | 
 |  | 
 |     pub fn access(path: *const c_char, amode: ::c_int) -> ::c_int; | 
 |     pub fn alarm(seconds: ::c_uint) -> ::c_uint; | 
 |     pub fn chdir(dir: *const c_char) -> ::c_int; | 
 |     pub fn chown(path: *const c_char, uid: uid_t, | 
 |                  gid: gid_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "lchown$UNIX2003")] | 
 |     pub fn lchown(path: *const c_char, uid: uid_t, | 
 |                   gid: gid_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "close$UNIX2003")] | 
 |     pub fn close(fd: ::c_int) -> ::c_int; | 
 |     pub fn dup(fd: ::c_int) -> ::c_int; | 
 |     pub fn dup2(src: ::c_int, dst: ::c_int) -> ::c_int; | 
 |     pub fn execv(prog: *const c_char, | 
 |                  argv: *const *const c_char) -> ::c_int; | 
 |     pub fn execve(prog: *const c_char, argv: *const *const c_char, | 
 |                   envp: *const *const c_char) | 
 |                   -> ::c_int; | 
 |     pub fn execvp(c: *const c_char, | 
 |                   argv: *const *const c_char) -> ::c_int; | 
 |     pub fn fork() -> pid_t; | 
 |     pub fn fpathconf(filedes: ::c_int, name: ::c_int) -> c_long; | 
 |     pub fn getcwd(buf: *mut c_char, size: ::size_t) -> *mut c_char; | 
 |     pub fn getegid() -> gid_t; | 
 |     pub fn geteuid() -> uid_t; | 
 |     pub fn getgid() -> gid_t; | 
 |     pub fn getgroups(ngroups_max: ::c_int, groups: *mut gid_t) | 
 |                      -> ::c_int; | 
 |     pub fn getlogin() -> *mut c_char; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "getopt$UNIX2003")] | 
 |     pub fn getopt(argc: ::c_int, argv: *const *mut c_char, | 
 |                   optstr: *const c_char) -> ::c_int; | 
 |     pub fn getpgrp() -> pid_t; | 
 |     pub fn getpid() -> pid_t; | 
 |     pub fn getppid() -> pid_t; | 
 |     pub fn getuid() -> uid_t; | 
 |     pub fn isatty(fd: ::c_int) -> ::c_int; | 
 |     pub fn link(src: *const c_char, dst: *const c_char) -> ::c_int; | 
 |     pub fn lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -> off_t; | 
 |     pub fn pathconf(path: *const c_char, name: ::c_int) -> c_long; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pause$UNIX2003")] | 
 |     pub fn pause() -> ::c_int; | 
 |     pub fn pipe(fds: *mut ::c_int) -> ::c_int; | 
 |     pub fn posix_memalign(memptr: *mut *mut ::c_void, | 
 |                       align: ::size_t, | 
 |                       size: ::size_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "read$UNIX2003")] | 
 |     pub fn read(fd: ::c_int, buf: *mut ::c_void, count: ::size_t) | 
 |                 -> ::ssize_t; | 
 |     pub fn rmdir(path: *const c_char) -> ::c_int; | 
 |     pub fn setgid(gid: gid_t) -> ::c_int; | 
 |     pub fn setpgid(pid: pid_t, pgid: pid_t) -> ::c_int; | 
 |     pub fn setsid() -> pid_t; | 
 |     pub fn setuid(uid: uid_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "sleep$UNIX2003")] | 
 |     pub fn sleep(secs: ::c_uint) -> ::c_uint; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "nanosleep$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__nanosleep50")] | 
 |     pub fn nanosleep(rqtp: *const timespec, | 
 |                      rmtp: *mut timespec) -> ::c_int; | 
 |     pub fn tcgetpgrp(fd: ::c_int) -> pid_t; | 
 |     pub fn ttyname(fd: ::c_int) -> *mut c_char; | 
 |     pub fn unlink(c: *const c_char) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "wait$UNIX2003")] | 
 |     pub fn wait(status: *mut ::c_int) -> pid_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "waitpid$UNIX2003")] | 
 |     pub fn waitpid(pid: pid_t, status: *mut ::c_int, options: ::c_int) | 
 |                    -> pid_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "write$UNIX2003")] | 
 |     pub fn write(fd: ::c_int, buf: *const ::c_void, count: ::size_t) | 
 |                  -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pread$UNIX2003")] | 
 |     pub fn pread(fd: ::c_int, buf: *mut ::c_void, count: ::size_t, | 
 |                  offset: off_t) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pwrite$UNIX2003")] | 
 |     pub fn pwrite(fd: ::c_int, buf: *const ::c_void, count: ::size_t, | 
 |                   offset: off_t) -> ::ssize_t; | 
 |     pub fn umask(mask: mode_t) -> mode_t; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__utime50")] | 
 |     pub fn utime(file: *const c_char, buf: *const utimbuf) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                    link_name = "kill$UNIX2003")] | 
 |     pub fn kill(pid: pid_t, sig: ::c_int) -> ::c_int; | 
 |  | 
 |     pub fn mlock(addr: *const ::c_void, len: ::size_t) -> ::c_int; | 
 |     pub fn munlock(addr: *const ::c_void, len: ::size_t) -> ::c_int; | 
 |     pub fn mlockall(flags: ::c_int) -> ::c_int; | 
 |     pub fn munlockall() -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "mmap$UNIX2003")] | 
 |     pub fn mmap(addr: *mut ::c_void, | 
 |                 len: ::size_t, | 
 |                 prot: ::c_int, | 
 |                 flags: ::c_int, | 
 |                 fd: ::c_int, | 
 |                 offset: off_t) | 
 |                 -> *mut ::c_void; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "munmap$UNIX2003")] | 
 |     pub fn munmap(addr: *mut ::c_void, len: ::size_t) -> ::c_int; | 
 |  | 
 |     pub fn if_nametoindex(ifname: *const c_char) -> ::c_uint; | 
 |     pub fn if_indextoname(ifindex: ::c_uint, | 
 |                           ifname: *mut ::c_char) -> *mut ::c_char; | 
 |  | 
 |     #[cfg_attr(target_os = "macos", link_name = "lstat$INODE64")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__lstat50")] | 
 |     pub fn lstat(path: *const c_char, buf: *mut stat) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "fsync$UNIX2003")] | 
 |     pub fn fsync(fd: ::c_int) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "setenv$UNIX2003")] | 
 |     pub fn setenv(name: *const c_char, val: *const c_char, | 
 |                   overwrite: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "unsetenv$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__unsetenv13")] | 
 |     pub fn unsetenv(name: *const c_char) -> ::c_int; | 
 |  | 
 |     pub fn symlink(path1: *const c_char, | 
 |                    path2: *const c_char) -> ::c_int; | 
 |  | 
 |     pub fn ftruncate(fd: ::c_int, length: off_t) -> ::c_int; | 
 |  | 
 |     pub fn signal(signum: ::c_int, handler: sighandler_t) -> sighandler_t; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "getrlimit$UNIX2003")] | 
 |     pub fn getrlimit(resource: ::c_int, rlim: *mut rlimit) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "setrlimit$UNIX2003")] | 
 |     pub fn setrlimit(resource: ::c_int, rlim: *const rlimit) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__getrusage50")] | 
 |     pub fn getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int; | 
 |  | 
 |     pub fn getdtablesize() -> ::c_int; | 
 |     #[cfg_attr(any(target_os = "macos", target_os = "ios"), | 
 |                link_name = "realpath$DARWIN_EXTSN")] | 
 |     pub fn realpath(pathname: *const ::c_char, resolved: *mut ::c_char) | 
 |                     -> *mut ::c_char; | 
 |  | 
 |     pub fn flock(fd: ::c_int, operation: ::c_int) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__gettimeofday50")] | 
 |     pub fn gettimeofday(tp: *mut ::timeval, | 
 |                         tz: *mut ::c_void) -> ::c_int; | 
 |  | 
 |     pub fn pthread_self() -> ::pthread_t; | 
 |     pub fn pthread_create(native: *mut ::pthread_t, | 
 |                           attr: *const ::pthread_attr_t, | 
 |                           f: extern fn(*mut ::c_void) -> *mut ::c_void, | 
 |                           value: *mut ::c_void) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_join$UNIX2003")] | 
 |     pub fn pthread_join(native: ::pthread_t, | 
 |                         value: *mut *mut ::c_void) -> ::c_int; | 
 |     pub fn pthread_attr_init(attr: *mut ::pthread_attr_t) -> ::c_int; | 
 |     pub fn pthread_attr_destroy(attr: *mut ::pthread_attr_t) -> ::c_int; | 
 |     pub fn pthread_attr_setstacksize(attr: *mut ::pthread_attr_t, | 
 |                                      stack_size: ::size_t) -> ::c_int; | 
 |     pub fn pthread_attr_setdetachstate(attr: *mut ::pthread_attr_t, | 
 |                                        state: ::c_int) -> ::c_int; | 
 |     pub fn pthread_detach(thread: ::pthread_t) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__libc_thr_yield")] | 
 |     pub fn sched_yield() -> ::c_int; | 
 |     pub fn pthread_key_create(key: *mut pthread_key_t, | 
 |                               dtor: Option<unsafe extern fn(*mut ::c_void)>) | 
 |                               -> ::c_int; | 
 |     pub fn pthread_key_delete(key: pthread_key_t) -> ::c_int; | 
 |     pub fn pthread_getspecific(key: pthread_key_t) -> *mut ::c_void; | 
 |     pub fn pthread_setspecific(key: pthread_key_t, value: *const ::c_void) | 
 |                                -> ::c_int; | 
 |     pub fn pthread_mutex_init(lock: *mut pthread_mutex_t, | 
 |                               attr: *const pthread_mutexattr_t) -> ::c_int; | 
 |     pub fn pthread_mutex_destroy(lock: *mut pthread_mutex_t) -> ::c_int; | 
 |     pub fn pthread_mutex_lock(lock: *mut pthread_mutex_t) -> ::c_int; | 
 |     pub fn pthread_mutex_trylock(lock: *mut pthread_mutex_t) -> ::c_int; | 
 |     pub fn pthread_mutex_unlock(lock: *mut pthread_mutex_t) -> ::c_int; | 
 |  | 
 |     pub fn pthread_mutexattr_init(attr: *mut pthread_mutexattr_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_mutexattr_destroy$UNIX2003")] | 
 |     pub fn pthread_mutexattr_destroy(attr: *mut pthread_mutexattr_t) -> ::c_int; | 
 |     pub fn pthread_mutexattr_settype(attr: *mut pthread_mutexattr_t, | 
 |                                      _type: ::c_int) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_cond_init$UNIX2003")] | 
 |     pub fn pthread_cond_init(cond: *mut pthread_cond_t, | 
 |                              attr: *const pthread_condattr_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_cond_wait$UNIX2003")] | 
 |     pub fn pthread_cond_wait(cond: *mut pthread_cond_t, | 
 |                              lock: *mut pthread_mutex_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_cond_timedwait$UNIX2003")] | 
 |     pub fn pthread_cond_timedwait(cond: *mut pthread_cond_t, | 
 |                               lock: *mut pthread_mutex_t, | 
 |                               abstime: *const ::timespec) -> ::c_int; | 
 |     pub fn pthread_cond_signal(cond: *mut pthread_cond_t) -> ::c_int; | 
 |     pub fn pthread_cond_broadcast(cond: *mut pthread_cond_t) -> ::c_int; | 
 |     pub fn pthread_cond_destroy(cond: *mut pthread_cond_t) -> ::c_int; | 
 |     pub fn pthread_condattr_init(attr: *mut pthread_condattr_t) -> ::c_int; | 
 |     pub fn pthread_condattr_destroy(attr: *mut pthread_condattr_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_destroy$UNIX2003")] | 
 |     pub fn pthread_rwlock_destroy(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_rdlock$UNIX2003")] | 
 |     pub fn pthread_rwlock_rdlock(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_tryrdlock$UNIX2003")] | 
 |     pub fn pthread_rwlock_tryrdlock(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_wrlock$UNIX2003")] | 
 |     pub fn pthread_rwlock_wrlock(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_trywrlock$UNIX2003")] | 
 |     pub fn pthread_rwlock_trywrlock(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_rwlock_unlock$UNIX2003")] | 
 |     pub fn pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pthread_sigmask$UNIX2003")] | 
 |     pub fn pthread_sigmask(how: ::c_int, set: *const sigset_t, | 
 |                            oldset: *mut sigset_t) -> ::c_int; | 
 |     pub fn pthread_kill(thread: ::pthread_t, sig: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "linux", not(target_env = "musl")), | 
 |                link_name = "__xpg_strerror_r")] | 
 |     pub fn strerror_r(errnum: ::c_int, buf: *mut c_char, | 
 |                       buflen: ::size_t) -> ::c_int; | 
 |  | 
 |     pub fn getsockopt(sockfd: ::c_int, | 
 |                       level: ::c_int, | 
 |                       optname: ::c_int, | 
 |                       optval: *mut ::c_void, | 
 |                       optlen: *mut ::socklen_t) -> ::c_int; | 
 |     pub fn raise(signum: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigaction14")] | 
 |     pub fn sigaction(signum: ::c_int, | 
 |                      act: *const sigaction, | 
 |                      oldact: *mut sigaction) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "sigaltstack$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigaltstack14")] | 
 |     pub fn sigaltstack(ss: *const stack_t, | 
 |                        oss: *mut stack_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch ="x86"), | 
 |                link_name = "sigwait$UNIX2003")] | 
 |     pub fn sigwait(set: *const sigset_t, | 
 |                    sig: *mut ::c_int) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__utimes50")] | 
 |     pub fn utimes(filename: *const ::c_char, | 
 |                   times: *const ::timeval) -> ::c_int; | 
 |     pub fn dlopen(filename: *const ::c_char, | 
 |                   flag: ::c_int) -> *mut ::c_void; | 
 |     pub fn dlerror() -> *mut ::c_char; | 
 |     pub fn dlsym(handle: *mut ::c_void, | 
 |                  symbol: *const ::c_char) -> *mut ::c_void; | 
 |     pub fn dlclose(handle: *mut ::c_void) -> ::c_int; | 
 |     pub fn dladdr(addr: *const ::c_void, info: *mut Dl_info) -> ::c_int; | 
 |  | 
 |     pub fn getaddrinfo(node: *const c_char, | 
 |                        service: *const c_char, | 
 |                        hints: *const addrinfo, | 
 |                        res: *mut *mut addrinfo) -> ::c_int; | 
 |     pub fn freeaddrinfo(res: *mut addrinfo); | 
 |     pub fn gai_strerror(errcode: ::c_int) -> *const ::c_char; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__gmtime_r50")] | 
 |     pub fn gmtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__localtime_r50")] | 
 |     pub fn localtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "mktime$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__mktime50")] | 
 |     pub fn mktime(tm: *mut tm) -> time_t; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__mknod50")] | 
 |     pub fn mknod(pathname: *const ::c_char, mode: ::mode_t, | 
 |                  dev: ::dev_t) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "writev$UNIX2003")] | 
 |     pub fn writev(fd: ::c_int, | 
 |                   iov: *const ::iovec, | 
 |                   iovcnt: ::c_int) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "readv$UNIX2003")] | 
 |     pub fn readv(fd: ::c_int, | 
 |                  iov: *const ::iovec, | 
 |                  iovcnt: ::c_int) -> ::ssize_t; | 
 |     pub fn uname(buf: *mut ::utsname) -> ::c_int; | 
 |     pub fn daemon(nochdir: ::c_int, noclose: ::c_int) -> ::c_int; | 
 |     pub fn gethostname(name: *mut ::c_char, len: ::size_t) -> ::c_int; | 
 |     pub fn chroot(name: *const ::c_char) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "usleep$UNIX2003")] | 
 |     pub fn usleep(secs: ::c_uint) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "send$UNIX2003")] | 
 |     pub fn send(socket: ::c_int, buf: *const ::c_void, len: ::size_t, | 
 |                 flags: ::c_int) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "recv$UNIX2003")] | 
 |     pub fn recv(socket: ::c_int, buf: *mut ::c_void, len: ::size_t, | 
 |                 flags: ::c_int) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "putenv$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__putenv50")] | 
 |     pub fn putenv(string: *mut c_char) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "sendmsg$UNIX2003")] | 
 |     pub fn sendmsg(fd: ::c_int, | 
 |                    msg: *const msghdr, | 
 |                    flags: ::c_int) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "recvmsg$UNIX2003")] | 
 |     pub fn recvmsg(fd: ::c_int, msg: *mut msghdr, flags: ::c_int) -> ::ssize_t; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "poll$UNIX2003")] | 
 |     pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "select$1050")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "select$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__select50")] | 
 |     pub fn select(nfds: ::c_int, | 
 |                   readfs: *mut fd_set, | 
 |                   writefds: *mut fd_set, | 
 |                   errorfds: *mut fd_set, | 
 |                   timeout: *mut timeval) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__setlocale50")] | 
 |     pub fn setlocale(category: ::c_int, | 
 |                      locale: *const ::c_char) -> *mut ::c_char; | 
 |     pub fn localeconv() -> *mut lconv; | 
 |  | 
 |     pub fn sem_destroy(sem: *mut sem_t) -> ::c_int; | 
 |     pub fn sem_open(name: *const ::c_char, oflag: ::c_int, ...) -> *mut sem_t; | 
 |     pub fn sem_close(sem: *mut sem_t) -> ::c_int; | 
 |     pub fn sem_unlink(name: *const ::c_char) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "sem_wait$UNIX2003")] | 
 |     pub fn sem_wait(sem: *mut sem_t) -> ::c_int; | 
 |     pub fn sem_trywait(sem: *mut sem_t) -> ::c_int; | 
 |     pub fn sem_post(sem: *mut sem_t) -> ::c_int; | 
 |     pub fn sem_init(sem: *mut sem_t, | 
 |                     pshared: ::c_int, | 
 |                     value: ::c_uint) | 
 |                     -> ::c_int; | 
 | } | 
 |  | 
 | // TODO: get rid of this cfg(not(...)) | 
 | #[cfg(not(target_os = "android"))] // " if " -- appease style checker | 
 | extern { | 
 |     pub fn getifaddrs(ifap: *mut *mut ifaddrs) -> ::c_int; | 
 |     pub fn freeifaddrs(ifa: *mut ifaddrs); | 
 |     #[cfg_attr(target_os = "macos", link_name = "glob$INODE64")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__glob30")] | 
 |     pub fn glob(pattern: *const c_char, | 
 |                 flags: ::c_int, | 
 |                 errfunc: Option<extern fn(epath: *const c_char, | 
 |                                           errno: ::c_int) -> ::c_int>, | 
 |                 pglob: *mut glob_t) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__globfree30")] | 
 |     pub fn globfree(pglob: *mut glob_t); | 
 |  | 
 |     pub fn posix_madvise(addr: *mut ::c_void, len: ::size_t, advice: ::c_int) | 
 |                          -> ::c_int; | 
 |  | 
 |     pub fn shm_unlink(name: *const c_char) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "seekdir$INODE64")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "seekdir$INODE64$UNIX2003")] | 
 |     pub fn seekdir(dirp: *mut ::DIR, loc: c_long); | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "telldir$INODE64")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "telldir$INODE64$UNIX2003")] | 
 |     pub fn telldir(dirp: *mut ::DIR) -> c_long; | 
 |  | 
 |     pub fn getsid(pid: pid_t) -> pid_t; | 
 |     pub fn madvise(addr: *mut ::c_void, len: ::size_t, advice: ::c_int) | 
 |                    -> ::c_int; | 
 |     pub fn readlink(path: *const c_char, | 
 |                     buf: *mut c_char, | 
 |                     bufsz: ::size_t) | 
 |                     -> ::ssize_t; | 
 |  | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "msync$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__msync13")] | 
 |     pub fn msync(addr: *mut ::c_void, len: ::size_t, flags: ::c_int) -> ::c_int; | 
 |     pub fn sysconf(name: ::c_int) -> c_long; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "recvfrom$UNIX2003")] | 
 |     pub fn recvfrom(socket: ::c_int, buf: *mut ::c_void, len: ::size_t, | 
 |                     flags: ::c_int, addr: *mut sockaddr, | 
 |                     addrlen: *mut socklen_t) -> ::ssize_t; | 
 |     pub fn mkfifo(path: *const c_char, mode: mode_t) -> ::c_int; | 
 |  | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigemptyset14")] | 
 |     pub fn sigemptyset(set: *mut sigset_t) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigaddset14")] | 
 |     pub fn sigaddset(set: *mut sigset_t, signum: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigfillset14")] | 
 |     pub fn sigfillset(set: *mut sigset_t) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigdelset14")] | 
 |     pub fn sigdelset(set: *mut sigset_t, signum: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__sigismember14")] | 
 |     pub fn sigismember(set: *const sigset_t, signum: ::c_int) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"), | 
 |                link_name = "pselect$1050")] | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "pselect$UNIX2003")] | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__pselect50")] | 
 |     pub fn pselect(nfds: ::c_int, | 
 |                    readfs: *mut fd_set, | 
 |                    writefds: *mut fd_set, | 
 |                    errorfds: *mut fd_set, | 
 |                    timeout: *const timespec, | 
 |                    sigmask: *const sigset_t) -> ::c_int; | 
 |     pub fn fseeko(stream: *mut ::FILE, | 
 |                   offset: ::off_t, | 
 |                   whence: ::c_int) -> ::c_int; | 
 |     pub fn ftello(stream: *mut ::FILE) -> ::off_t; | 
 |     #[cfg_attr(target_os = "netbsd", link_name = "__timegm50")] | 
 |     pub fn timegm(tm: *mut ::tm) -> time_t; | 
 |     pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int; | 
 |     pub fn fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int; | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "tcdrain$UNIX2003")] | 
 |     pub fn tcdrain(fd: ::c_int) -> ::c_int; | 
 |     pub fn cfgetispeed(termios: *const ::termios) -> ::speed_t; | 
 |     pub fn cfgetospeed(termios: *const ::termios) -> ::speed_t; | 
 |     pub fn cfsetispeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int; | 
 |     pub fn cfsetospeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int; | 
 |     pub fn tcgetattr(fd: ::c_int, termios: *mut ::termios) -> ::c_int; | 
 |     pub fn tcsetattr(fd: ::c_int, | 
 |                      optional_actions: ::c_int, | 
 |                      termios: *const ::termios) -> ::c_int; | 
 |     pub fn tcflow(fd: ::c_int, action: ::c_int) -> ::c_int; | 
 |     pub fn tcflush(fd: ::c_int, action: ::c_int) -> ::c_int; | 
 |     pub fn tcsendbreak(fd: ::c_int, duration: ::c_int) -> ::c_int; | 
 |     pub fn mkstemp(template: *mut ::c_char) -> ::c_int; | 
 |     pub fn mkstemps(template: *mut ::c_char, suffixlen: ::c_int) -> ::c_int; | 
 |     pub fn mkdtemp(template: *mut ::c_char) -> *mut ::c_char; | 
 |     pub fn futimes(fd: ::c_int, times: *const ::timeval) -> ::c_int; | 
 |     pub fn nl_langinfo(item: ::nl_item) -> *mut ::c_char; | 
 |  | 
 |     pub fn openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int); | 
 |     pub fn closelog(); | 
 |     pub fn setlogmask(maskpri: ::c_int) -> ::c_int; | 
 |     pub fn syslog(priority: ::c_int, message: *const ::c_char, ...); | 
 |     #[cfg_attr(all(target_os = "macos", target_arch = "x86"), | 
 |                link_name = "nice$UNIX2003")] | 
 |     pub fn nice(incr: ::c_int) -> ::c_int; | 
 | } | 
 |  | 
 | cfg_if! { | 
 |     if #[cfg(any(target_os = "linux", | 
 |                  target_os = "android", | 
 |                  target_os = "emscripten"))] { | 
 |         mod notbsd; | 
 |         pub use self::notbsd::*; | 
 |     } else if #[cfg(any(target_os = "macos", | 
 |                         target_os = "ios", | 
 |                         target_os = "freebsd", | 
 |                         target_os = "dragonfly", | 
 |                         target_os = "openbsd", | 
 |                         target_os = "netbsd", | 
 |                         target_os = "bitrig"))] { | 
 |         mod bsd; | 
 |         pub use self::bsd::*; | 
 |     } else if #[cfg(target_os = "solaris")] { | 
 |         mod solaris; | 
 |         pub use self::solaris::*; | 
 |     } else { | 
 |         // Unknown target_os | 
 |     } | 
 | } |