Add dependencies/vendor (whatsapp)

1 files changed, 1423 insertions, 0 deletions

diff --git a/vendor/modernc.org/libc/libc_linux.go b/vendor/modernc.org/libc/libc_linux.go
new file mode 100644
index 00000000..d594ab4a
--- /dev/null
+++ b/vendor/modernc.org/libc/libc_linux.go
@@ -0,0 +1,1423 @@
+// Copyright 2020 The Libc Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package libc // import "modernc.org/libc"
+
+import (
+	"encoding/hex"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime/debug"
+	"syscall"
+	"time"
+	"unsafe"
+
+	guuid "github.com/google/uuid"
+	"golang.org/x/sys/unix"
+	"modernc.org/libc/errno"
+	"modernc.org/libc/fcntl"
+	"modernc.org/libc/fts"
+	gonetdb "modernc.org/libc/honnef.co/go/netdb"
+	"modernc.org/libc/langinfo"
+	"modernc.org/libc/limits"
+	"modernc.org/libc/netdb"
+	"modernc.org/libc/netinet/in"
+	"modernc.org/libc/signal"
+	"modernc.org/libc/stdio"
+	"modernc.org/libc/sys/socket"
+	"modernc.org/libc/sys/stat"
+	"modernc.org/libc/sys/types"
+	"modernc.org/libc/termios"
+	ctime "modernc.org/libc/time"
+	"modernc.org/libc/unistd"
+	"modernc.org/libc/uuid/uuid"
+)
+
+var (
+	in6_addr_any in.In6_addr
+	_            = X__ctype_b_loc
+)
+
+type (
+	long  = types.X__syscall_slong_t
+	ulong = types.X__syscall_ulong_t
+)
+
+type file uintptr
+
+func (f file) fd() int32      { return (*stdio.FILE)(unsafe.Pointer(f)).F_fileno }
+func (f file) setFd(fd int32) { (*stdio.FILE)(unsafe.Pointer(f)).F_fileno = fd }
+func (f file) err() bool      { return (*stdio.FILE)(unsafe.Pointer(f)).F_flags2&stdio.X_IO_ERR_SEEN != 0 }
+func (f file) setErr()        { (*stdio.FILE)(unsafe.Pointer(f)).F_flags2 |= stdio.X_IO_ERR_SEEN }
+
+func (f file) close(t *TLS) int32 {
+	r := Xclose(t, f.fd())
+	Xfree(t, uintptr(f))
+	if r < 0 {
+		return stdio.EOF
+	}
+	return 0
+}
+
+func newFile(t *TLS, fd int32) uintptr {
+	p := Xcalloc(t, 1, types.Size_t(unsafe.Sizeof(stdio.FILE{})))
+	if p == 0 {
+		return 0
+	}
+
+	file(p).setFd(fd)
+	return p
+}
+
+func fwrite(fd int32, b []byte) (int, error) {
+	if fd == unistd.STDOUT_FILENO {
+		return write(b)
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: fd %v: %s", origin(1), fd, b)
+	// }
+	return unix.Write(int(fd), b) //TODO use Xwrite
+}
+
+// int fprintf(FILE *stream, const char *format, ...);
+func Xfprintf(t *TLS, stream, format, args uintptr) int32 {
+	n, _ := fwrite((*stdio.FILE)(unsafe.Pointer(stream)).F_fileno, printf(format, args))
+	return int32(n)
+}
+
+// int usleep(useconds_t usec);
+func Xusleep(t *TLS, usec types.X__useconds_t) int32 {
+	time.Sleep(time.Microsecond * time.Duration(usec))
+	return 0
+}
+
+// int getrusage(int who, struct rusage *usage);
+func Xgetrusage(t *TLS, who int32, usage uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_GETRUSAGE, uintptr(who), usage, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int lstat(const char *pathname, struct stat *statbuf);
+func Xlstat(t *TLS, pathname, statbuf uintptr) int32 {
+	return Xlstat64(t, pathname, statbuf)
+}
+
+// int stat(const char *pathname, struct stat *statbuf);
+func Xstat(t *TLS, pathname, statbuf uintptr) int32 {
+	return Xstat64(t, pathname, statbuf)
+}
+
+// int chdir(const char *path);
+func Xchdir(t *TLS, path uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_CHDIR, path, 0, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %q: ok", origin(1), GoString(path))
+	// }
+	return 0
+}
+
+var localtime ctime.Tm
+
+// struct tm *localtime(const time_t *timep);
+func Xlocaltime(_ *TLS, timep uintptr) uintptr {
+	loc := time.Local
+	if r := getenv(Environ(), "TZ"); r != 0 {
+		zone, off := parseZone(GoString(r))
+		loc = time.FixedZone(zone, -off)
+	}
+	ut := *(*unix.Time_t)(unsafe.Pointer(timep))
+	t := time.Unix(int64(ut), 0).In(loc)
+	localtime.Ftm_sec = int32(t.Second())
+	localtime.Ftm_min = int32(t.Minute())
+	localtime.Ftm_hour = int32(t.Hour())
+	localtime.Ftm_mday = int32(t.Day())
+	localtime.Ftm_mon = int32(t.Month() - 1)
+	localtime.Ftm_year = int32(t.Year() - 1900)
+	localtime.Ftm_wday = int32(t.Weekday())
+	localtime.Ftm_yday = int32(t.YearDay())
+	localtime.Ftm_isdst = Bool32(isTimeDST(t))
+	return uintptr(unsafe.Pointer(&localtime))
+}
+
+// struct tm *localtime_r(const time_t *timep, struct tm *result);
+func Xlocaltime_r(_ *TLS, timep, result uintptr) uintptr {
+	loc := time.Local
+	if r := getenv(Environ(), "TZ"); r != 0 {
+		zone, off := parseZone(GoString(r))
+		loc = time.FixedZone(zone, -off)
+	}
+	ut := *(*unix.Time_t)(unsafe.Pointer(timep))
+	t := time.Unix(int64(ut), 0).In(loc)
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_sec = int32(t.Second())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_min = int32(t.Minute())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_hour = int32(t.Hour())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_mday = int32(t.Day())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_mon = int32(t.Month() - 1)
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_year = int32(t.Year() - 1900)
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_wday = int32(t.Weekday())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_yday = int32(t.YearDay())
+	(*ctime.Tm)(unsafe.Pointer(result)).Ftm_isdst = Bool32(isTimeDST(t))
+	return result
+}
+
+// int open(const char *pathname, int flags, ...);
+func Xopen(t *TLS, pathname uintptr, flags int32, args uintptr) int32 {
+	return Xopen64(t, pathname, flags, args)
+}
+
+// int open(const char *pathname, int flags, ...);
+func Xopen64(t *TLS, pathname uintptr, flags int32, args uintptr) int32 {
+	//TODO- flags |= fcntl.O_LARGEFILE
+	var mode types.Mode_t
+	if args != 0 {
+		mode = (types.Mode_t)(VaUint32(&args))
+	}
+	fdcwd := fcntl.AT_FDCWD
+	n, _, err := unix.Syscall6(unix.SYS_OPENAT, uintptr(fdcwd), pathname, uintptr(flags|unix.O_LARGEFILE), uintptr(mode), 0, 0)
+	if err != 0 {
+		// if dmesgs {
+		// 	dmesg("%v: %q %#x: %v", origin(1), GoString(pathname), flags, err)
+		// }
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %q flags %#x mode %#o: fd %v", origin(1), GoString(pathname), flags, mode, n)
+	// }
+	return int32(n)
+}
+
+// off_t lseek(int fd, off_t offset, int whence);
+func Xlseek(t *TLS, fd int32, offset types.Off_t, whence int32) types.Off_t {
+	return types.Off_t(Xlseek64(t, fd, offset, whence))
+}
+
+func whenceStr(whence int32) string {
+	switch whence {
+	case fcntl.SEEK_CUR:
+		return "SEEK_CUR"
+	case fcntl.SEEK_END:
+		return "SEEK_END"
+	case fcntl.SEEK_SET:
+		return "SEEK_SET"
+	default:
+		return fmt.Sprintf("whence(%d)", whence)
+	}
+}
+
+var fsyncStatbuf stat.Stat
+
+// int fsync(int fd);
+func Xfsync(t *TLS, fd int32) int32 {
+	if noFsync {
+		// Simulate -DSQLITE_NO_SYNC for sqlite3 testfixture, see function full_sync in sqlite3.c
+		return Xfstat(t, fd, uintptr(unsafe.Pointer(&fsyncStatbuf)))
+	}
+
+	if _, _, err := unix.Syscall(unix.SYS_FSYNC, uintptr(fd), 0, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %d: ok", origin(1), fd)
+	// }
+	return 0
+}
+
+// long sysconf(int name);
+func Xsysconf(t *TLS, name int32) long {
+	switch name {
+	case unistd.X_SC_PAGESIZE:
+		return long(unix.Getpagesize())
+	case unistd.X_SC_GETPW_R_SIZE_MAX:
+		return -1
+	case unistd.X_SC_GETGR_R_SIZE_MAX:
+		return -1
+	}
+
+	panic(todo("", name))
+}
+
+// int close(int fd);
+func Xclose(t *TLS, fd int32) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_CLOSE, uintptr(fd), 0, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %d: ok", origin(1), fd)
+	// }
+	return 0
+}
+
+// char *getcwd(char *buf, size_t size);
+func Xgetcwd(t *TLS, buf uintptr, size types.Size_t) uintptr {
+	n, _, err := unix.Syscall(unix.SYS_GETCWD, buf, uintptr(size), 0)
+	if err != 0 {
+		t.setErrno(err)
+		return 0
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %q: ok", origin(1), GoString(buf))
+	// }
+	return n
+}
+
+// int fstat(int fd, struct stat *statbuf);
+func Xfstat(t *TLS, fd int32, statbuf uintptr) int32 {
+	return Xfstat64(t, fd, statbuf)
+}
+
+// int ftruncate(int fd, off_t length);
+func Xftruncate(t *TLS, fd int32, length types.Off_t) int32 {
+	return Xftruncate64(t, fd, length)
+}
+
+// int fcntl(int fd, int cmd, ... /* arg */ );
+func Xfcntl(t *TLS, fd, cmd int32, args uintptr) int32 {
+	return Xfcntl64(t, fd, cmd, args)
+}
+
+// ssize_t read(int fd, void *buf, size_t count);
+func Xread(t *TLS, fd int32, buf uintptr, count types.Size_t) types.Ssize_t {
+	n, _, err := unix.Syscall(unix.SYS_READ, uintptr(fd), buf, uintptr(count))
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	// dmesg("%v: %d %#x: %#x\n%s", origin(1), fd, count, n, hex.Dump(GoBytes(buf, int(n))))
+	// 	dmesg("%v: %d %#x: %#x", origin(1), fd, count, n)
+	// }
+	return types.Ssize_t(n)
+}
+
+// ssize_t write(int fd, const void *buf, size_t count);
+func Xwrite(t *TLS, fd int32, buf uintptr, count types.Size_t) types.Ssize_t {
+	const retry = 5
+	var err syscall.Errno
+	for i := 0; i < retry; i++ {
+		var n uintptr
+		switch n, _, err = unix.Syscall(unix.SYS_WRITE, uintptr(fd), buf, uintptr(count)); err {
+		case 0:
+			// if dmesgs {
+			// 	// dmesg("%v: %d %#x: %#x\n%s", origin(1), fd, count, n, hex.Dump(GoBytes(buf, int(n))))
+			// 	dmesg("%v: %d %#x: %#x", origin(1), fd, count, n)
+			// }
+			return types.Ssize_t(n)
+		case errno.EAGAIN:
+			// nop
+		}
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: fd %v, count %#x: %v", origin(1), fd, count, err)
+	// }
+	t.setErrno(err)
+	return -1
+}
+
+// int fchmod(int fd, mode_t mode);
+func Xfchmod(t *TLS, fd int32, mode types.Mode_t) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_FCHMOD, uintptr(fd), uintptr(mode), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: %d %#o: ok", origin(1), fd, mode)
+	// }
+	return 0
+}
+
+// int fchown(int fd, uid_t owner, gid_t group);
+func Xfchown(t *TLS, fd int32, owner types.Uid_t, group types.Gid_t) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_FCHOWN, uintptr(fd), uintptr(owner), uintptr(group)); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// uid_t geteuid(void);
+func Xgeteuid(t *TLS) types.Uid_t {
+	n, _, _ := unix.Syscall(unix.SYS_GETEUID, 0, 0, 0)
+	return types.Uid_t(n)
+}
+
+// int munmap(void *addr, size_t length);
+func Xmunmap(t *TLS, addr uintptr, length types.Size_t) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_MUNMAP, addr, uintptr(length), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int gettimeofday(struct timeval *tv, struct timezone *tz);
+func Xgettimeofday(t *TLS, tv, tz uintptr) int32 {
+	if tz != 0 {
+		panic(todo(""))
+	}
+
+	var tvs unix.Timeval
+	err := unix.Gettimeofday(&tvs)
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	*(*unix.Timeval)(unsafe.Pointer(tv)) = tvs
+	return 0
+}
+
+// int getsockopt(int sockfd, int level, int optname, void *optval, socklen_t *optlen);
+func Xgetsockopt(t *TLS, sockfd, level, optname int32, optval, optlen uintptr) int32 {
+	if _, _, err := unix.Syscall6(unix.SYS_GETSOCKOPT, uintptr(sockfd), uintptr(level), uintptr(optname), optval, optlen, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int setsockopt(int sockfd, int level, int optname, const void *optval, socklen_t optlen);
+func Xsetsockopt(t *TLS, sockfd, level, optname int32, optval uintptr, optlen socket.Socklen_t) int32 {
+	if _, _, err := unix.Syscall6(unix.SYS_SETSOCKOPT, uintptr(sockfd), uintptr(level), uintptr(optname), optval, uintptr(optlen), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int ioctl(int fd, unsigned long request, ...);
+func Xioctl(t *TLS, fd int32, request ulong, va uintptr) int32 {
+	var argp uintptr
+	if va != 0 {
+		argp = VaUintptr(&va)
+	}
+	n, _, err := unix.Syscall(unix.SYS_IOCTL, uintptr(fd), uintptr(request), argp)
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// int getsockname(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
+func Xgetsockname(t *TLS, sockfd int32, addr, addrlen uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_GETSOCKNAME, uintptr(sockfd), addr, addrlen); err != 0 {
+		// if dmesgs {
+		// 	dmesg("%v: fd %v: %v", origin(1), sockfd, err)
+		// }
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);
+func Xselect(t *TLS, nfds int32, readfds, writefds, exceptfds, timeout uintptr) int32 {
+	n, err := unix.Select(
+		int(nfds),
+		(*unix.FdSet)(unsafe.Pointer(readfds)),
+		(*unix.FdSet)(unsafe.Pointer(writefds)),
+		(*unix.FdSet)(unsafe.Pointer(exceptfds)),
+		(*unix.Timeval)(unsafe.Pointer(timeout)),
+	)
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// int mkfifo(const char *pathname, mode_t mode);
+func Xmkfifo(t *TLS, pathname uintptr, mode types.Mode_t) int32 {
+	if err := unix.Mkfifo(GoString(pathname), mode); err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// mode_t umask(mode_t mask);
+func Xumask(t *TLS, mask types.Mode_t) types.Mode_t {
+	n, _, _ := unix.Syscall(unix.SYS_UMASK, uintptr(mask), 0, 0)
+	return types.Mode_t(n)
+}
+
+// int execvp(const char *file, char *const argv[]);
+func Xexecvp(t *TLS, file, argv uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_EXECVE, file, argv, Environ()); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// pid_t waitpid(pid_t pid, int *wstatus, int options);
+func Xwaitpid(t *TLS, pid types.Pid_t, wstatus uintptr, optname int32) types.Pid_t {
+	n, _, err := unix.Syscall6(unix.SYS_WAIT4, uintptr(pid), wstatus, uintptr(optname), 0, 0, 0)
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return types.Pid_t(n)
+}
+
+// int uname(struct utsname *buf);
+func Xuname(t *TLS, buf uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_UNAME, buf, 0, 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// ssize_t recv(int sockfd, void *buf, size_t len, int flags);
+func Xrecv(t *TLS, sockfd int32, buf uintptr, len types.Size_t, flags int32) types.Ssize_t {
+	n, _, err := unix.Syscall6(unix.SYS_RECVFROM, uintptr(sockfd), buf, uintptr(len), uintptr(flags), 0, 0)
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return types.Ssize_t(n)
+}
+
+// ssize_t send(int sockfd, const void *buf, size_t len, int flags);
+func Xsend(t *TLS, sockfd int32, buf uintptr, len types.Size_t, flags int32) types.Ssize_t {
+	n, _, err := unix.Syscall6(unix.SYS_SENDTO, uintptr(sockfd), buf, uintptr(len), uintptr(flags), 0, 0)
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return types.Ssize_t(n)
+}
+
+// int shutdown(int sockfd, int how);
+func Xshutdown(t *TLS, sockfd, how int32) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_SHUTDOWN, uintptr(sockfd), uintptr(how), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int getpeername(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
+func Xgetpeername(t *TLS, sockfd int32, addr uintptr, addrlen uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_GETPEERNAME, uintptr(sockfd), addr, uintptr(addrlen)); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int socket(int domain, int type, int protocol);
+func Xsocket(t *TLS, domain, type1, protocol int32) int32 {
+	n, _, err := unix.Syscall(unix.SYS_SOCKET, uintptr(domain), uintptr(type1), uintptr(protocol))
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// int bind(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+func Xbind(t *TLS, sockfd int32, addr uintptr, addrlen uint32) int32 {
+	n, _, err := unix.Syscall(unix.SYS_BIND, uintptr(sockfd), addr, uintptr(addrlen))
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
+func Xconnect(t *TLS, sockfd int32, addr uintptr, addrlen uint32) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_CONNECT, uintptr(sockfd), addr, uintptr(addrlen)); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int listen(int sockfd, int backlog);
+func Xlisten(t *TLS, sockfd, backlog int32) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_LISTEN, uintptr(sockfd), uintptr(backlog), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
+func Xaccept(t *TLS, sockfd int32, addr uintptr, addrlen uintptr) int32 {
+	n, _, err := unix.Syscall6(unix.SYS_ACCEPT4, uintptr(sockfd), addr, uintptr(addrlen), 0, 0, 0)
+	if err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return int32(n)
+}
+
+// int getrlimit(int resource, struct rlimit *rlim);
+func Xgetrlimit(t *TLS, resource int32, rlim uintptr) int32 {
+	return Xgetrlimit64(t, resource, rlim)
+}
+
+// int setrlimit(int resource, const struct rlimit *rlim);
+func Xsetrlimit(t *TLS, resource int32, rlim uintptr) int32 {
+	return Xsetrlimit64(t, resource, rlim)
+}
+
+// int setrlimit(int resource, const struct rlimit *rlim);
+func Xsetrlimit64(t *TLS, resource int32, rlim uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_SETRLIMIT, uintptr(resource), uintptr(rlim), 0); err != 0 {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// uid_t getuid(void);
+func Xgetuid(t *TLS) types.Uid_t {
+	return types.Uid_t(os.Getuid())
+}
+
+// pid_t getpid(void);
+func Xgetpid(t *TLS) int32 {
+	return int32(os.Getpid())
+}
+
+// int system(const char *command);
+func Xsystem(t *TLS, command uintptr) int32 {
+	s := GoString(command)
+	if command == 0 {
+		panic(todo(""))
+	}
+
+	cmd := exec.Command("sh", "-c", s)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	err := cmd.Run()
+	if err != nil {
+		ps := err.(*exec.ExitError)
+		return int32(ps.ExitCode())
+	}
+
+	return 0
+}
+
+// int setvbuf(FILE *stream, char *buf, int mode, size_t size);
+func Xsetvbuf(t *TLS, stream, buf uintptr, mode int32, size types.Size_t) int32 {
+	return 0 //TODO
+}
+
+// int raise(int sig);
+func Xraise(t *TLS, sig int32) int32 {
+	panic(todo(""))
+}
+
+// int backtrace(void **buffer, int size);
+func Xbacktrace(t *TLS, buf uintptr, size int32) int32 {
+	panic(todo(""))
+}
+
+// void backtrace_symbols_fd(void *const *buffer, int size, int fd);
+func Xbacktrace_symbols_fd(t *TLS, buffer uintptr, size, fd int32) {
+	panic(todo(""))
+}
+
+// int fileno(FILE *stream);
+func Xfileno(t *TLS, stream uintptr) int32 {
+	if stream == 0 {
+		t.setErrno(errno.EBADF)
+		return -1
+	}
+
+	if fd := (*stdio.FILE)(unsafe.Pointer(stream)).F_fileno; fd >= 0 {
+		return fd
+	}
+
+	t.setErrno(errno.EBADF)
+	return -1
+}
+
+func newFtsent(t *TLS, info int, path string, stat *unix.Stat_t, err syscall.Errno) (r *fts.FTSENT) {
+	var statp uintptr
+	if stat != nil {
+		statp = Xmalloc(t, types.Size_t(unsafe.Sizeof(unix.Stat_t{})))
+		if statp == 0 {
+			panic("OOM")
+		}
+
+		*(*unix.Stat_t)(unsafe.Pointer(statp)) = *stat
+	}
+	csp, errx := CString(path)
+	if errx != nil {
+		panic("OOM")
+	}
+
+	return &fts.FTSENT{
+		Ffts_info:    uint16(info),
+		Ffts_path:    csp,
+		Ffts_pathlen: uint16(len(path)),
+		Ffts_statp:   statp,
+		Ffts_errno:   int32(err),
+	}
+}
+
+func newCFtsent(t *TLS, info int, path string, stat *unix.Stat_t, err syscall.Errno) uintptr {
+	p := Xcalloc(t, 1, types.Size_t(unsafe.Sizeof(fts.FTSENT{})))
+	if p == 0 {
+		panic("OOM")
+	}
+
+	*(*fts.FTSENT)(unsafe.Pointer(p)) = *newFtsent(t, info, path, stat, err)
+	return p
+}
+
+func ftsentClose(t *TLS, p uintptr) {
+	Xfree(t, (*fts.FTSENT)(unsafe.Pointer(p)).Ffts_path)
+	Xfree(t, (*fts.FTSENT)(unsafe.Pointer(p)).Ffts_statp)
+}
+
+type ftstream struct {
+	s []uintptr
+	x int
+}
+
+func (f *ftstream) close(t *TLS) {
+	for _, p := range f.s {
+		ftsentClose(t, p)
+		Xfree(t, p)
+	}
+	*f = ftstream{}
+}
+
+// FTS *fts_open(char * const *path_argv, int options, int (*compar)(const FTSENT **, const FTSENT **));
+func Xfts_open(t *TLS, path_argv uintptr, options int32, compar uintptr) uintptr {
+	return Xfts64_open(t, path_argv, options, compar)
+}
+
+// FTS *fts_open(char * const *path_argv, int options, int (*compar)(const FTSENT **, const FTSENT **));
+func Xfts64_open(t *TLS, path_argv uintptr, options int32, compar uintptr) uintptr {
+	f := &ftstream{}
+
+	var walk func(string)
+	walk = func(path string) {
+		var fi os.FileInfo
+		var err error
+		switch {
+		case options&fts.FTS_LOGICAL != 0:
+			fi, err = os.Stat(path)
+		case options&fts.FTS_PHYSICAL != 0:
+			fi, err = os.Lstat(path)
+		default:
+			panic(todo(""))
+		}
+
+		if err != nil {
+			return
+		}
+
+		var statp *unix.Stat_t
+		if options&fts.FTS_NOSTAT == 0 {
+			var stat unix.Stat_t
+			switch {
+			case options&fts.FTS_LOGICAL != 0:
+				if err := unix.Stat(path, &stat); err != nil {
+					panic(todo(""))
+				}
+			case options&fts.FTS_PHYSICAL != 0:
+				if err := unix.Lstat(path, &stat); err != nil {
+					panic(todo(""))
+				}
+			default:
+				panic(todo(""))
+			}
+
+			statp = &stat
+		}
+
+	out:
+		switch {
+		case fi.IsDir():
+			f.s = append(f.s, newCFtsent(t, fts.FTS_D, path, statp, 0))
+			g, err := os.Open(path)
+			switch x := err.(type) {
+			case nil:
+				// ok
+			case *os.PathError:
+				f.s = append(f.s, newCFtsent(t, fts.FTS_DNR, path, statp, errno.EACCES))
+				break out
+			default:
+				panic(todo("%q: %v %T", path, x, x))
+			}
+
+			names, err := g.Readdirnames(-1)
+			g.Close()
+			if err != nil {
+				panic(todo(""))
+			}
+
+			for _, name := range names {
+				walk(path + "/" + name)
+				if f == nil {
+					break out
+				}
+			}
+
+			f.s = append(f.s, newCFtsent(t, fts.FTS_DP, path, statp, 0))
+		default:
+			info := fts.FTS_F
+			if fi.Mode()&os.ModeSymlink != 0 {
+				info = fts.FTS_SL
+			}
+			switch {
+			case statp != nil:
+				f.s = append(f.s, newCFtsent(t, info, path, statp, 0))
+			case options&fts.FTS_NOSTAT != 0:
+				f.s = append(f.s, newCFtsent(t, fts.FTS_NSOK, path, nil, 0))
+			default:
+				panic(todo(""))
+			}
+		}
+	}
+
+	for {
+		p := *(*uintptr)(unsafe.Pointer(path_argv))
+		if p == 0 {
+			if f == nil {
+				return 0
+			}
+
+			if compar != 0 {
+				panic(todo(""))
+			}
+
+			return addObject(f)
+		}
+
+		walk(GoString(p))
+		path_argv += unsafe.Sizeof(uintptr(0))
+	}
+}
+
+// FTSENT *fts_read(FTS *ftsp);
+func Xfts_read(t *TLS, ftsp uintptr) uintptr {
+	return Xfts64_read(t, ftsp)
+}
+
+// FTSENT *fts_read(FTS *ftsp);
+func Xfts64_read(t *TLS, ftsp uintptr) uintptr {
+	f := getObject(ftsp).(*ftstream)
+	if f.x == len(f.s) {
+		t.setErrno(0)
+		return 0
+	}
+
+	r := f.s[f.x]
+	if e := (*fts.FTSENT)(unsafe.Pointer(r)).Ffts_errno; e != 0 {
+		t.setErrno(e)
+	}
+	f.x++
+	return r
+}
+
+// int fts_close(FTS *ftsp);
+func Xfts_close(t *TLS, ftsp uintptr) int32 {
+	return Xfts64_close(t, ftsp)
+}
+
+// int fts_close(FTS *ftsp);
+func Xfts64_close(t *TLS, ftsp uintptr) int32 {
+	getObject(ftsp).(*ftstream).close(t)
+	removeObject(ftsp)
+	return 0
+}
+
+// void tzset (void);
+func Xtzset(t *TLS) {
+	//TODO
+}
+
+var strerrorBuf [100]byte
+
+// char *strerror(int errnum);
+func Xstrerror(t *TLS, errnum int32) uintptr {
+	if dmesgs {
+		dmesg("%v: %v\n%s", origin(1), errnum, debug.Stack())
+	}
+	copy(strerrorBuf[:], fmt.Sprintf("strerror(%d)\x00", errnum))
+	return uintptr(unsafe.Pointer(&strerrorBuf[0]))
+}
+
+// void *dlopen(const char *filename, int flags);
+func Xdlopen(t *TLS, filename uintptr, flags int32) uintptr {
+	panic(todo("%q", GoString(filename)))
+}
+
+// char *dlerror(void);
+func Xdlerror(t *TLS) uintptr {
+	panic(todo(""))
+}
+
+// int dlclose(void *handle);
+func Xdlclose(t *TLS, handle uintptr) int32 {
+	panic(todo(""))
+}
+
+// void *dlsym(void *handle, const char *symbol);
+func Xdlsym(t *TLS, handle, symbol uintptr) uintptr {
+	panic(todo(""))
+}
+
+// void perror(const char *s);
+func Xperror(t *TLS, s uintptr) {
+	panic(todo(""))
+}
+
+// int pclose(FILE *stream);
+func Xpclose(t *TLS, stream uintptr) int32 {
+	panic(todo(""))
+}
+
+var gai_strerrorBuf [100]byte
+
+// const char *gai_strerror(int errcode);
+func Xgai_strerror(t *TLS, errcode int32) uintptr {
+	copy(gai_strerrorBuf[:], fmt.Sprintf("gai error %d\x00", errcode))
+	return uintptr(unsafe.Pointer(&gai_strerrorBuf))
+}
+
+// int tcgetattr(int fd, struct termios *termios_p);
+func Xtcgetattr(t *TLS, fd int32, termios_p uintptr) int32 {
+	panic(todo(""))
+}
+
+// int tcsetattr(int fd, int optional_actions, const struct termios *termios_p);
+func Xtcsetattr(t *TLS, fd, optional_actions int32, termios_p uintptr) int32 {
+	panic(todo(""))
+}
+
+// speed_t cfgetospeed(const struct termios *termios_p);
+func Xcfgetospeed(t *TLS, termios_p uintptr) termios.Speed_t {
+	panic(todo(""))
+}
+
+// int cfsetospeed(struct termios *termios_p, speed_t speed);
+func Xcfsetospeed(t *TLS, termios_p uintptr, speed uint32) int32 {
+	panic(todo(""))
+}
+
+// int cfsetispeed(struct termios *termios_p, speed_t speed);
+func Xcfsetispeed(t *TLS, termios_p uintptr, speed uint32) int32 {
+	panic(todo(""))
+}
+
+// pid_t fork(void);
+func Xfork(t *TLS) int32 {
+	t.setErrno(errno.ENOSYS)
+	return -1
+}
+
+var emptyStr = [1]byte{}
+
+// char *setlocale(int category, const char *locale);
+func Xsetlocale(t *TLS, category int32, locale uintptr) uintptr {
+	return uintptr(unsafe.Pointer(&emptyStr)) //TODO
+}
+
+// char *nl_langinfo(nl_item item);
+func Xnl_langinfo(t *TLS, item langinfo.Nl_item) uintptr {
+	return uintptr(unsafe.Pointer(&emptyStr)) //TODO
+}
+
+// FILE *popen(const char *command, const char *type);
+func Xpopen(t *TLS, command, type1 uintptr) uintptr {
+	panic(todo(""))
+}
+
+// char *realpath(const char *path, char *resolved_path);
+func Xrealpath(t *TLS, path, resolved_path uintptr) uintptr {
+	s, err := filepath.EvalSymlinks(GoString(path))
+	if err != nil {
+		if os.IsNotExist(err) {
+			// if dmesgs {
+			// 	dmesg("%v: %q: %v", origin(1), GoString(path), err)
+			// }
+			t.setErrno(errno.ENOENT)
+			return 0
+		}
+
+		panic(todo("", err))
+	}
+
+	if resolved_path == 0 {
+		panic(todo(""))
+	}
+
+	if len(s) >= limits.PATH_MAX {
+		s = s[:limits.PATH_MAX-1]
+	}
+
+	copy((*RawMem)(unsafe.Pointer(resolved_path))[:len(s):len(s)], s)
+	(*RawMem)(unsafe.Pointer(resolved_path))[len(s)] = 0
+	return resolved_path
+}
+
+// struct tm *gmtime_r(const time_t *timep, struct tm *result);
+func Xgmtime_r(t *TLS, timep, result uintptr) uintptr {
+	panic(todo(""))
+}
+
+// char *inet_ntoa(struct in_addr in);
+func Xinet_ntoa(t *TLS, in1 in.In_addr) uintptr {
+	panic(todo(""))
+}
+
+func X__ccgo_in6addr_anyp(t *TLS) uintptr {
+	return uintptr(unsafe.Pointer(&in6_addr_any))
+}
+
+func Xabort(t *TLS) {
+	// if dmesgs {
+	// 	dmesg("%v:\n%s", origin(1), debug.Stack())
+	// }
+	p := Xmalloc(t, types.Size_t(unsafe.Sizeof(signal.Sigaction{})))
+	if p == 0 {
+		panic("OOM")
+	}
+
+	*(*signal.Sigaction)(unsafe.Pointer(p)) = signal.Sigaction{
+		F__sigaction_handler: struct{ Fsa_handler signal.X__sighandler_t }{Fsa_handler: signal.SIG_DFL},
+	}
+	Xsigaction(t, signal.SIGABRT, p, 0)
+	Xfree(t, p)
+	unix.Kill(unix.Getpid(), syscall.Signal(signal.SIGABRT))
+	panic(todo("unrechable"))
+}
+
+// int fflush(FILE *stream);
+func Xfflush(t *TLS, stream uintptr) int32 {
+	return 0 //TODO
+}
+
+// size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream);
+func Xfread(t *TLS, ptr uintptr, size, nmemb types.Size_t, stream uintptr) types.Size_t {
+	m, _, err := unix.Syscall(unix.SYS_READ, uintptr(file(stream).fd()), ptr, uintptr(size*nmemb))
+	if err != 0 {
+		file(stream).setErr()
+		return 0
+	}
+
+	// if dmesgs {
+	// 	// dmesg("%v: %d %#x x %#x: %#x\n%s", origin(1), file(stream).fd(), size, nmemb, types.Size_t(m)/size, hex.Dump(GoBytes(ptr, int(m))))
+	// 	dmesg("%v: %d %#x x %#x: %#x", origin(1), file(stream).fd(), size, nmemb, types.Size_t(m)/size)
+	// }
+	return types.Size_t(m) / size
+}
+
+// size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
+func Xfwrite(t *TLS, ptr uintptr, size, nmemb types.Size_t, stream uintptr) types.Size_t {
+	m, _, err := unix.Syscall(unix.SYS_WRITE, uintptr(file(stream).fd()), ptr, uintptr(size*nmemb))
+	if err != 0 {
+		file(stream).setErr()
+		return 0
+	}
+
+	// if dmesgs {
+	// 	// dmesg("%v: %d %#x x %#x: %#x\n%s", origin(1), file(stream).fd(), size, nmemb, types.Size_t(m)/size, hex.Dump(GoBytes(ptr, int(m))))
+	// 	dmesg("%v: %d %#x x %#x: %#x", origin(1), file(stream).fd(), size, nmemb, types.Size_t(m)/size)
+	// }
+	return types.Size_t(m) / size
+}
+
+// int fclose(FILE *stream);
+func Xfclose(t *TLS, stream uintptr) int32 {
+	return file(stream).close(t)
+}
+
+// int fputc(int c, FILE *stream);
+func Xfputc(t *TLS, c int32, stream uintptr) int32 {
+	if _, err := fwrite(file(stream).fd(), []byte{byte(c)}); err != nil {
+		return stdio.EOF
+	}
+
+	return int32(byte(c))
+}
+
+// int fseek(FILE *stream, long offset, int whence);
+func Xfseek(t *TLS, stream uintptr, offset long, whence int32) int32 {
+	if n := Xlseek(t, int32(file(stream).fd()), types.Off_t(offset), whence); n < 0 {
+		// if dmesgs {
+		// 	dmesg("%v: fd %v, off %#x, whence %v: %v", origin(1), file(stream).fd(), offset, whenceStr(whence), n)
+		// }
+		file(stream).setErr()
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: fd %v, off %#x, whence %v: ok", origin(1), file(stream).fd(), offset, whenceStr(whence))
+	// }
+	return 0
+}
+
+// long ftell(FILE *stream);
+func Xftell(t *TLS, stream uintptr) long {
+	n := Xlseek(t, file(stream).fd(), 0, stdio.SEEK_CUR)
+	if n < 0 {
+		file(stream).setErr()
+		return -1
+	}
+
+	// if dmesgs {
+	// 	dmesg("%v: fd %v, n %#x: ok %#x", origin(1), file(stream).fd(), n, long(n))
+	// }
+	return long(n)
+}
+
+// int ferror(FILE *stream);
+func Xferror(t *TLS, stream uintptr) int32 {
+	return Bool32(file(stream).err())
+}
+
+// int ungetc(int c, FILE *stream);
+func Xungetc(t *TLS, c int32, stream uintptr) int32 {
+	panic(todo(""))
+}
+
+// int fscanf(FILE *stream, const char *format, ...);
+func Xfscanf(t *TLS, stream, format, va uintptr) int32 {
+	panic(todo(""))
+}
+
+// int fputs(const char *s, FILE *stream);
+func Xfputs(t *TLS, s, stream uintptr) int32 {
+	if _, _, err := unix.Syscall(unix.SYS_WRITE, uintptr(file(stream).fd()), s, uintptr(Xstrlen(t, s))); err != 0 {
+		return -1
+	}
+
+	return 0
+}
+
+var getservbynameStaticResult netdb.Servent
+
+// struct servent *getservbyname(const char *name, const char *proto);
+func Xgetservbyname(t *TLS, name, proto uintptr) uintptr {
+	var protoent *gonetdb.Protoent
+	if proto != 0 {
+		protoent = gonetdb.GetProtoByName(GoString(proto))
+	}
+	servent := gonetdb.GetServByName(GoString(name), protoent)
+	if servent == nil {
+		// if dmesgs {
+		// 	dmesg("%q %q: nil (protoent %+v)", GoString(name), GoString(proto), protoent)
+		// }
+		return 0
+	}
+
+	Xfree(t, (*netdb.Servent)(unsafe.Pointer(&getservbynameStaticResult)).Fs_name)
+	if v := (*netdb.Servent)(unsafe.Pointer(&getservbynameStaticResult)).Fs_aliases; v != 0 {
+		for {
+			p := *(*uintptr)(unsafe.Pointer(v))
+			if p == 0 {
+				break
+			}
+
+			Xfree(t, p)
+			v += unsafe.Sizeof(uintptr(0))
+		}
+		Xfree(t, v)
+	}
+	Xfree(t, (*netdb.Servent)(unsafe.Pointer(&getservbynameStaticResult)).Fs_proto)
+	cname, err := CString(servent.Name)
+	if err != nil {
+		getservbynameStaticResult = netdb.Servent{}
+		return 0
+	}
+
+	var protoname uintptr
+	if protoent != nil {
+		if protoname, err = CString(protoent.Name); err != nil {
+			Xfree(t, cname)
+			getservbynameStaticResult = netdb.Servent{}
+			return 0
+		}
+	}
+	var a []uintptr
+	for _, v := range servent.Aliases {
+		cs, err := CString(v)
+		if err != nil {
+			for _, v := range a {
+				Xfree(t, v)
+			}
+			return 0
+		}
+
+		a = append(a, cs)
+	}
+	v := Xcalloc(t, types.Size_t(len(a)+1), types.Size_t(unsafe.Sizeof(uintptr(0))))
+	if v == 0 {
+		Xfree(t, cname)
+		Xfree(t, protoname)
+		for _, v := range a {
+			Xfree(t, v)
+		}
+		getservbynameStaticResult = netdb.Servent{}
+		return 0
+	}
+	for _, p := range a {
+		*(*uintptr)(unsafe.Pointer(v)) = p
+		v += unsafe.Sizeof(uintptr(0))
+	}
+
+	getservbynameStaticResult = netdb.Servent{
+		Fs_name:    cname,
+		Fs_aliases: v,
+		Fs_port:    int32(servent.Port),
+		Fs_proto:   protoname,
+	}
+	return uintptr(unsafe.Pointer(&getservbynameStaticResult))
+}
+
+func Xreaddir64(t *TLS, dir uintptr) uintptr {
+	return Xreaddir(t, dir)
+}
+
+func __syscall(r, _ uintptr, errno syscall.Errno) long {
+	if errno != 0 {
+		return long(-errno)
+	}
+
+	return long(r)
+}
+
+func X__syscall1(t *TLS, trap, p1 long) long {
+	return __syscall(unix.Syscall(uintptr(trap), uintptr(p1), 0, 0))
+}
+
+func X__syscall3(t *TLS, trap, p1, p2, p3 long) long {
+	return __syscall(unix.Syscall(uintptr(trap), uintptr(p1), uintptr(p2), uintptr(p3)))
+}
+
+func X__syscall4(t *TLS, trap, p1, p2, p3, p4 long) long {
+	return __syscall(unix.Syscall6(uintptr(trap), uintptr(p1), uintptr(p2), uintptr(p3), uintptr(p4), 0, 0))
+}
+
+func fcntlCmdStr(cmd int32) string {
+	switch cmd {
+	case fcntl.F_GETOWN:
+		return "F_GETOWN"
+	case fcntl.F_SETLK:
+		return "F_SETLK"
+	case fcntl.F_GETLK:
+		return "F_GETLK"
+	case fcntl.F_SETFD:
+		return "F_SETFD"
+	case fcntl.F_GETFD:
+		return "F_GETFD"
+	default:
+		return fmt.Sprintf("cmd(%d)", cmd)
+	}
+}
+
+// int setenv(const char *name, const char *value, int overwrite);
+func Xsetenv(t *TLS, name, value uintptr, overwrite int32) int32 {
+	panic(todo(""))
+}
+
+// int unsetenv(const char *name);
+func Xunsetenv(t *TLS, name uintptr) int32 {
+	panic(todo(""))
+}
+
+// int pause(void);
+func Xpause(t *TLS) int32 {
+	err := unix.Pause()
+	if err != nil {
+		t.setErrno(err)
+	}
+
+	return -1
+}
+
+// ssize_t writev(int fd, const struct iovec *iov, int iovcnt);
+func Xwritev(t *TLS, fd int32, iov uintptr, iovcnt int32) types.Ssize_t {
+	// if dmesgs {
+	// 	dmesg("%v: fd %v iov %#x iovcnt %v", origin(1), fd, iov, iovcnt)
+	// }
+	if iovcnt == 0 {
+		panic(todo(""))
+	}
+
+	iovs := make([][]byte, iovcnt)
+	for ; iovcnt != 0; iovcnt-- {
+		base := (*unix.Iovec)(unsafe.Pointer(iov)).Base
+		len := (*unix.Iovec)(unsafe.Pointer(iov)).Len
+		// if dmesgs {
+		// 	dmesg("%v: base %#x len %v", origin(1), base, len)
+		// }
+		if base != nil && len != 0 {
+			iovs = append(iovs, (*RawMem)(unsafe.Pointer(base))[:len:len])
+			iov += unsafe.Sizeof(unix.Iovec{})
+		}
+	}
+	n, err := unix.Writev(int(fd), iovs)
+	if err != nil {
+		// if dmesgs {
+		// 	dmesg("%v: %v", origin(1), err)
+		// }
+		panic(todo(""))
+	}
+
+	return types.Ssize_t(n)
+}
+
+// int __isoc99_sscanf(const char *str, const char *format, ...);
+func X__isoc99_sscanf(t *TLS, str, format, va uintptr) int32 {
+	r := Xsscanf(t, str, format, va)
+	// if dmesgs {
+	// 	dmesg("%v: %q %q: %d", origin(1), GoString(str), GoString(format), r)
+	// }
+	return r
+}
+
+// var ctimeStaticBuf [32]byte
+//
+// // char *ctime(const time_t *timep);
+// func Xctime(t *TLS, timep uintptr) uintptr {
+// 	return Xctime_r(t, timep, uintptr(unsafe.Pointer(&ctimeStaticBuf[0])))
+// }
+//
+// // char *ctime_r(const time_t *timep, char *buf);
+// func Xctime_r(t *TLS, timep, buf uintptr) uintptr {
+// 	ut := *(*unix.Time_t)(unsafe.Pointer(timep))
+// 	tm := time.Unix(int64(ut), 0).Local()
+// 	s := tm.Format(time.ANSIC) + "\n\x00"
+// 	copy((*RawMem)(unsafe.Pointer(buf))[:26:26], s)
+// 	return buf
+// }
+
+// ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset);
+func Xpwrite(t *TLS, fd int32, buf uintptr, count types.Size_t, offset types.Off_t) types.Ssize_t {
+	var n int
+	var err error
+	switch {
+	case count == 0:
+		n, err = unix.Pwrite(int(fd), nil, int64(offset))
+	default:
+		n, err = unix.Pwrite(int(fd), (*RawMem)(unsafe.Pointer(buf))[:count:count], int64(offset))
+		if dmesgs {
+			dmesg("%v: fd %v, off %#x, count %#x\n%s", origin(1), fd, offset, count, hex.Dump((*RawMem)(unsafe.Pointer(buf))[:count:count]))
+		}
+	}
+	if err != nil {
+		if dmesgs {
+			dmesg("%v: %v FAIL", origin(1), err)
+		}
+		t.setErrno(err)
+		return -1
+	}
+
+	if dmesgs {
+		dmesg("%v: ok", origin(1))
+	}
+	return types.Ssize_t(n)
+}
+
+// int fstatfs(int fd, struct statfs *buf);
+func Xfstatfs(t *TLS, fd int32, buf uintptr) int32 {
+	if err := unix.Fstatfs(int(fd), (*unix.Statfs_t)(unsafe.Pointer(buf))); err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return 0
+}
+
+// ssize_t getrandom(void *buf, size_t buflen, unsigned int flags);
+func Xgetrandom(t *TLS, buf uintptr, buflen size_t, flags uint32) ssize_t {
+	n, err := unix.Getrandom((*RawMem)(unsafe.Pointer(buf))[:buflen], int(flags))
+	if err != nil {
+		t.setErrno(err)
+		return -1
+	}
+
+	return ssize_t(n)
+}
+
+// int posix_fadvise(int fd, off_t offset, off_t len, int advice);
+func Xposix_fadvise(t *TLS, fd int32, offset, len types.Off_t, advice int32) int32 {
+	if err := unix.Fadvise(int(fd), int64(offset), int64(len), int(advice)); err != nil {
+		return int32(err.(unix.Errno))
+	}
+
+	return 0
+}
+
+// int fgetc(FILE *stream);
+func Xfgetc(t *TLS, stream uintptr) int32 {
+	fd := int((*stdio.FILE)(unsafe.Pointer(stream)).F_fileno)
+	var buf [1]byte
+	if n, _ := unix.Read(fd, buf[:]); n != 0 {
+		return int32(buf[0])
+	}
+
+	return stdio.EOF
+}
+
+// void uuid_copy(uuid_t dst, uuid_t src);
+func Xuuid_copy(t *TLS, dst, src uintptr) {
+	*(*uuid.Uuid_t)(unsafe.Pointer(dst)) = *(*uuid.Uuid_t)(unsafe.Pointer(src))
+}
+
+// int uuid_parse( char *in, uuid_t uu);
+func Xuuid_parse(t *TLS, in uintptr, uu uintptr) int32 {
+	r, err := guuid.Parse(GoString(in))
+	if err != nil {
+		return -1
+	}
+
+	copy((*RawMem)(unsafe.Pointer(uu))[:unsafe.Sizeof(uuid.Uuid_t{})], r[:])
+	return 0
+}