1// Copyright 2009,2010 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// FreeBSD system calls. 6// This file is compiled as ordinary Go code, 7// but it is also input to mksyscall, 8// which parses the //sys lines and generates system call stubs. 9// Note that sometimes we use a lowercase //sys name and wrap 10// it in our own nicer implementation, either here or in 11// syscall_bsd.go or syscall_unix.go. 12 13package unix 14 15import ( 16 "sync" 17 "unsafe" 18) 19 20const ( 21 SYS_FSTAT_FREEBSD12 = 551 // { int fstat(int fd, _Out_ struct stat *sb); } 22 SYS_FSTATAT_FREEBSD12 = 552 // { int fstatat(int fd, _In_z_ char *path, \ 23 SYS_GETDIRENTRIES_FREEBSD12 = 554 // { ssize_t getdirentries(int fd, \ 24 SYS_STATFS_FREEBSD12 = 555 // { int statfs(_In_z_ char *path, \ 25 SYS_FSTATFS_FREEBSD12 = 556 // { int fstatfs(int fd, \ 26 SYS_GETFSSTAT_FREEBSD12 = 557 // { int getfsstat( \ 27 SYS_MKNODAT_FREEBSD12 = 559 // { int mknodat(int fd, _In_z_ char *path, \ 28) 29 30// See https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html. 31var ( 32 osreldateOnce sync.Once 33 osreldate uint32 34) 35 36// INO64_FIRST from /usr/src/lib/libc/sys/compat-ino64.h 37const _ino64First = 1200031 38 39func supportsABI(ver uint32) bool { 40 osreldateOnce.Do(func() { osreldate, _ = SysctlUint32("kern.osreldate") }) 41 return osreldate >= ver 42} 43 44// SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 45type SockaddrDatalink struct { 46 Len uint8 47 Family uint8 48 Index uint16 49 Type uint8 50 Nlen uint8 51 Alen uint8 52 Slen uint8 53 Data [46]int8 54 raw RawSockaddrDatalink 55} 56 57// Translate "kern.hostname" to []_C_int{0,1,2,3}. 58func nametomib(name string) (mib []_C_int, err error) { 59 const siz = unsafe.Sizeof(mib[0]) 60 61 // NOTE(rsc): It seems strange to set the buffer to have 62 // size CTL_MAXNAME+2 but use only CTL_MAXNAME 63 // as the size. I don't know why the +2 is here, but the 64 // kernel uses +2 for its own implementation of this function. 65 // I am scared that if we don't include the +2 here, the kernel 66 // will silently write 2 words farther than we specify 67 // and we'll get memory corruption. 68 var buf [CTL_MAXNAME + 2]_C_int 69 n := uintptr(CTL_MAXNAME) * siz 70 71 p := (*byte)(unsafe.Pointer(&buf[0])) 72 bytes, err := ByteSliceFromString(name) 73 if err != nil { 74 return nil, err 75 } 76 77 // Magic sysctl: "setting" 0.3 to a string name 78 // lets you read back the array of integers form. 79 if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { 80 return nil, err 81 } 82 return buf[0 : n/siz], nil 83} 84 85func Pipe(p []int) (err error) { 86 return Pipe2(p, 0) 87} 88 89//sysnb pipe2(p *[2]_C_int, flags int) (err error) 90 91func Pipe2(p []int, flags int) error { 92 if len(p) != 2 { 93 return EINVAL 94 } 95 var pp [2]_C_int 96 err := pipe2(&pp, flags) 97 p[0] = int(pp[0]) 98 p[1] = int(pp[1]) 99 return err 100} 101 102func GetsockoptIPMreqn(fd, level, opt int) (*IPMreqn, error) { 103 var value IPMreqn 104 vallen := _Socklen(SizeofIPMreqn) 105 errno := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen) 106 return &value, errno 107} 108 109func SetsockoptIPMreqn(fd, level, opt int, mreq *IPMreqn) (err error) { 110 return setsockopt(fd, level, opt, unsafe.Pointer(mreq), unsafe.Sizeof(*mreq)) 111} 112 113func Accept4(fd, flags int) (nfd int, sa Sockaddr, err error) { 114 var rsa RawSockaddrAny 115 var len _Socklen = SizeofSockaddrAny 116 nfd, err = accept4(fd, &rsa, &len, flags) 117 if err != nil { 118 return 119 } 120 if len > SizeofSockaddrAny { 121 panic("RawSockaddrAny too small") 122 } 123 sa, err = anyToSockaddr(fd, &rsa) 124 if err != nil { 125 Close(nfd) 126 nfd = 0 127 } 128 return 129} 130 131const ImplementsGetwd = true 132 133//sys Getcwd(buf []byte) (n int, err error) = SYS___GETCWD 134 135func Getwd() (string, error) { 136 var buf [PathMax]byte 137 _, err := Getcwd(buf[0:]) 138 if err != nil { 139 return "", err 140 } 141 n := clen(buf[:]) 142 if n < 1 { 143 return "", EINVAL 144 } 145 return string(buf[:n]), nil 146} 147 148func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 149 var ( 150 _p0 unsafe.Pointer 151 bufsize uintptr 152 oldBuf []statfs_freebsd11_t 153 needsConvert bool 154 ) 155 156 if len(buf) > 0 { 157 if supportsABI(_ino64First) { 158 _p0 = unsafe.Pointer(&buf[0]) 159 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 160 } else { 161 n := len(buf) 162 oldBuf = make([]statfs_freebsd11_t, n) 163 _p0 = unsafe.Pointer(&oldBuf[0]) 164 bufsize = unsafe.Sizeof(statfs_freebsd11_t{}) * uintptr(n) 165 needsConvert = true 166 } 167 } 168 var sysno uintptr = SYS_GETFSSTAT 169 if supportsABI(_ino64First) { 170 sysno = SYS_GETFSSTAT_FREEBSD12 171 } 172 r0, _, e1 := Syscall(sysno, uintptr(_p0), bufsize, uintptr(flags)) 173 n = int(r0) 174 if e1 != 0 { 175 err = e1 176 } 177 if e1 == 0 && needsConvert { 178 for i := range oldBuf { 179 buf[i].convertFrom(&oldBuf[i]) 180 } 181 } 182 return 183} 184 185func setattrlistTimes(path string, times []Timespec, flags int) error { 186 // used on Darwin for UtimesNano 187 return ENOSYS 188} 189 190//sys ioctl(fd int, req uint, arg uintptr) (err error) 191 192// ioctl itself should not be exposed directly, but additional get/set 193// functions for specific types are permissible. 194 195// IoctlSetInt performs an ioctl operation which sets an integer value 196// on fd, using the specified request number. 197func IoctlSetInt(fd int, req uint, value int) error { 198 return ioctl(fd, req, uintptr(value)) 199} 200 201func ioctlSetWinsize(fd int, req uint, value *Winsize) error { 202 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 203} 204 205func ioctlSetTermios(fd int, req uint, value *Termios) error { 206 return ioctl(fd, req, uintptr(unsafe.Pointer(value))) 207} 208 209// IoctlGetInt performs an ioctl operation which gets an integer value 210// from fd, using the specified request number. 211func IoctlGetInt(fd int, req uint) (int, error) { 212 var value int 213 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 214 return value, err 215} 216 217func IoctlGetWinsize(fd int, req uint) (*Winsize, error) { 218 var value Winsize 219 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 220 return &value, err 221} 222 223func IoctlGetTermios(fd int, req uint) (*Termios, error) { 224 var value Termios 225 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value))) 226 return &value, err 227} 228 229func Uname(uname *Utsname) error { 230 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 231 n := unsafe.Sizeof(uname.Sysname) 232 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 233 return err 234 } 235 236 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 237 n = unsafe.Sizeof(uname.Nodename) 238 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 239 return err 240 } 241 242 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 243 n = unsafe.Sizeof(uname.Release) 244 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 245 return err 246 } 247 248 mib = []_C_int{CTL_KERN, KERN_VERSION} 249 n = unsafe.Sizeof(uname.Version) 250 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 251 return err 252 } 253 254 // The version might have newlines or tabs in it, convert them to 255 // spaces. 256 for i, b := range uname.Version { 257 if b == '\n' || b == '\t' { 258 if i == len(uname.Version)-1 { 259 uname.Version[i] = 0 260 } else { 261 uname.Version[i] = ' ' 262 } 263 } 264 } 265 266 mib = []_C_int{CTL_HW, HW_MACHINE} 267 n = unsafe.Sizeof(uname.Machine) 268 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 269 return err 270 } 271 272 return nil 273} 274 275func Stat(path string, st *Stat_t) (err error) { 276 var oldStat stat_freebsd11_t 277 if supportsABI(_ino64First) { 278 return fstatat_freebsd12(AT_FDCWD, path, st, 0) 279 } 280 err = stat(path, &oldStat) 281 if err != nil { 282 return err 283 } 284 285 st.convertFrom(&oldStat) 286 return nil 287} 288 289func Lstat(path string, st *Stat_t) (err error) { 290 var oldStat stat_freebsd11_t 291 if supportsABI(_ino64First) { 292 return fstatat_freebsd12(AT_FDCWD, path, st, AT_SYMLINK_NOFOLLOW) 293 } 294 err = lstat(path, &oldStat) 295 if err != nil { 296 return err 297 } 298 299 st.convertFrom(&oldStat) 300 return nil 301} 302 303func Fstat(fd int, st *Stat_t) (err error) { 304 var oldStat stat_freebsd11_t 305 if supportsABI(_ino64First) { 306 return fstat_freebsd12(fd, st) 307 } 308 err = fstat(fd, &oldStat) 309 if err != nil { 310 return err 311 } 312 313 st.convertFrom(&oldStat) 314 return nil 315} 316 317func Fstatat(fd int, path string, st *Stat_t, flags int) (err error) { 318 var oldStat stat_freebsd11_t 319 if supportsABI(_ino64First) { 320 return fstatat_freebsd12(fd, path, st, flags) 321 } 322 err = fstatat(fd, path, &oldStat, flags) 323 if err != nil { 324 return err 325 } 326 327 st.convertFrom(&oldStat) 328 return nil 329} 330 331func Statfs(path string, st *Statfs_t) (err error) { 332 var oldStatfs statfs_freebsd11_t 333 if supportsABI(_ino64First) { 334 return statfs_freebsd12(path, st) 335 } 336 err = statfs(path, &oldStatfs) 337 if err != nil { 338 return err 339 } 340 341 st.convertFrom(&oldStatfs) 342 return nil 343} 344 345func Fstatfs(fd int, st *Statfs_t) (err error) { 346 var oldStatfs statfs_freebsd11_t 347 if supportsABI(_ino64First) { 348 return fstatfs_freebsd12(fd, st) 349 } 350 err = fstatfs(fd, &oldStatfs) 351 if err != nil { 352 return err 353 } 354 355 st.convertFrom(&oldStatfs) 356 return nil 357} 358 359func Getdents(fd int, buf []byte) (n int, err error) { 360 return Getdirentries(fd, buf, nil) 361} 362 363func Getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) { 364 if supportsABI(_ino64First) { 365 return getdirentries_freebsd12(fd, buf, basep) 366 } 367 368 // The old syscall entries are smaller than the new. Use 1/4 of the original 369 // buffer size rounded up to DIRBLKSIZ (see /usr/src/lib/libc/sys/getdirentries.c). 370 oldBufLen := roundup(len(buf)/4, _dirblksiz) 371 oldBuf := make([]byte, oldBufLen) 372 n, err = getdirentries(fd, oldBuf, basep) 373 if err == nil && n > 0 { 374 n = convertFromDirents11(buf, oldBuf[:n]) 375 } 376 return 377} 378 379func Mknod(path string, mode uint32, dev uint64) (err error) { 380 var oldDev int 381 if supportsABI(_ino64First) { 382 return mknodat_freebsd12(AT_FDCWD, path, mode, dev) 383 } 384 oldDev = int(dev) 385 return mknod(path, mode, oldDev) 386} 387 388func Mknodat(fd int, path string, mode uint32, dev uint64) (err error) { 389 var oldDev int 390 if supportsABI(_ino64First) { 391 return mknodat_freebsd12(fd, path, mode, dev) 392 } 393 oldDev = int(dev) 394 return mknodat(fd, path, mode, oldDev) 395} 396 397// round x to the nearest multiple of y, larger or equal to x. 398// 399// from /usr/include/sys/param.h Macros for counting and rounding. 400// #define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) 401func roundup(x, y int) int { 402 return ((x + y - 1) / y) * y 403} 404 405func (s *Stat_t) convertFrom(old *stat_freebsd11_t) { 406 *s = Stat_t{ 407 Dev: uint64(old.Dev), 408 Ino: uint64(old.Ino), 409 Nlink: uint64(old.Nlink), 410 Mode: old.Mode, 411 Uid: old.Uid, 412 Gid: old.Gid, 413 Rdev: uint64(old.Rdev), 414 Atim: old.Atim, 415 Mtim: old.Mtim, 416 Ctim: old.Ctim, 417 Birthtim: old.Birthtim, 418 Size: old.Size, 419 Blocks: old.Blocks, 420 Blksize: old.Blksize, 421 Flags: old.Flags, 422 Gen: uint64(old.Gen), 423 } 424} 425 426func (s *Statfs_t) convertFrom(old *statfs_freebsd11_t) { 427 *s = Statfs_t{ 428 Version: _statfsVersion, 429 Type: old.Type, 430 Flags: old.Flags, 431 Bsize: old.Bsize, 432 Iosize: old.Iosize, 433 Blocks: old.Blocks, 434 Bfree: old.Bfree, 435 Bavail: old.Bavail, 436 Files: old.Files, 437 Ffree: old.Ffree, 438 Syncwrites: old.Syncwrites, 439 Asyncwrites: old.Asyncwrites, 440 Syncreads: old.Syncreads, 441 Asyncreads: old.Asyncreads, 442 // Spare 443 Namemax: old.Namemax, 444 Owner: old.Owner, 445 Fsid: old.Fsid, 446 // Charspare 447 // Fstypename 448 // Mntfromname 449 // Mntonname 450 } 451 452 sl := old.Fstypename[:] 453 n := clen(*(*[]byte)(unsafe.Pointer(&sl))) 454 copy(s.Fstypename[:], old.Fstypename[:n]) 455 456 sl = old.Mntfromname[:] 457 n = clen(*(*[]byte)(unsafe.Pointer(&sl))) 458 copy(s.Mntfromname[:], old.Mntfromname[:n]) 459 460 sl = old.Mntonname[:] 461 n = clen(*(*[]byte)(unsafe.Pointer(&sl))) 462 copy(s.Mntonname[:], old.Mntonname[:n]) 463} 464 465func convertFromDirents11(buf []byte, old []byte) int { 466 const ( 467 fixedSize = int(unsafe.Offsetof(Dirent{}.Name)) 468 oldFixedSize = int(unsafe.Offsetof(dirent_freebsd11{}.Name)) 469 ) 470 471 dstPos := 0 472 srcPos := 0 473 for dstPos+fixedSize < len(buf) && srcPos+oldFixedSize < len(old) { 474 dstDirent := (*Dirent)(unsafe.Pointer(&buf[dstPos])) 475 srcDirent := (*dirent_freebsd11)(unsafe.Pointer(&old[srcPos])) 476 477 reclen := roundup(fixedSize+int(srcDirent.Namlen)+1, 8) 478 if dstPos+reclen > len(buf) { 479 break 480 } 481 482 dstDirent.Fileno = uint64(srcDirent.Fileno) 483 dstDirent.Off = 0 484 dstDirent.Reclen = uint16(reclen) 485 dstDirent.Type = srcDirent.Type 486 dstDirent.Pad0 = 0 487 dstDirent.Namlen = uint16(srcDirent.Namlen) 488 dstDirent.Pad1 = 0 489 490 copy(dstDirent.Name[:], srcDirent.Name[:srcDirent.Namlen]) 491 padding := buf[dstPos+fixedSize+int(dstDirent.Namlen) : dstPos+reclen] 492 for i := range padding { 493 padding[i] = 0 494 } 495 496 dstPos += int(dstDirent.Reclen) 497 srcPos += int(srcDirent.Reclen) 498 } 499 500 return dstPos 501} 502 503func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 504 if raceenabled { 505 raceReleaseMerge(unsafe.Pointer(&ioSync)) 506 } 507 return sendfile(outfd, infd, offset, count) 508} 509 510/* 511 * Exposed directly 512 */ 513//sys Access(path string, mode uint32) (err error) 514//sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 515//sys CapEnter() (err error) 516//sys capRightsGet(version int, fd int, rightsp *CapRights) (err error) = SYS___CAP_RIGHTS_GET 517//sys capRightsLimit(fd int, rightsp *CapRights) (err error) 518//sys Chdir(path string) (err error) 519//sys Chflags(path string, flags int) (err error) 520//sys Chmod(path string, mode uint32) (err error) 521//sys Chown(path string, uid int, gid int) (err error) 522//sys Chroot(path string) (err error) 523//sys Close(fd int) (err error) 524//sys Dup(fd int) (nfd int, err error) 525//sys Dup2(from int, to int) (err error) 526//sys Exit(code int) 527//sys ExtattrGetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 528//sys ExtattrSetFd(fd int, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 529//sys ExtattrDeleteFd(fd int, attrnamespace int, attrname string) (err error) 530//sys ExtattrListFd(fd int, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 531//sys ExtattrGetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 532//sys ExtattrSetFile(file string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 533//sys ExtattrDeleteFile(file string, attrnamespace int, attrname string) (err error) 534//sys ExtattrListFile(file string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 535//sys ExtattrGetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 536//sys ExtattrSetLink(link string, attrnamespace int, attrname string, data uintptr, nbytes int) (ret int, err error) 537//sys ExtattrDeleteLink(link string, attrnamespace int, attrname string) (err error) 538//sys ExtattrListLink(link string, attrnamespace int, data uintptr, nbytes int) (ret int, err error) 539//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_POSIX_FADVISE 540//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 541//sys Fchdir(fd int) (err error) 542//sys Fchflags(fd int, flags int) (err error) 543//sys Fchmod(fd int, mode uint32) (err error) 544//sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 545//sys Fchown(fd int, uid int, gid int) (err error) 546//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 547//sys Flock(fd int, how int) (err error) 548//sys Fpathconf(fd int, name int) (val int, err error) 549//sys fstat(fd int, stat *stat_freebsd11_t) (err error) 550//sys fstat_freebsd12(fd int, stat *Stat_t) (err error) 551//sys fstatat(fd int, path string, stat *stat_freebsd11_t, flags int) (err error) 552//sys fstatat_freebsd12(fd int, path string, stat *Stat_t, flags int) (err error) 553//sys fstatfs(fd int, stat *statfs_freebsd11_t) (err error) 554//sys fstatfs_freebsd12(fd int, stat *Statfs_t) (err error) 555//sys Fsync(fd int) (err error) 556//sys Ftruncate(fd int, length int64) (err error) 557//sys getdirentries(fd int, buf []byte, basep *uintptr) (n int, err error) 558//sys getdirentries_freebsd12(fd int, buf []byte, basep *uintptr) (n int, err error) 559//sys Getdtablesize() (size int) 560//sysnb Getegid() (egid int) 561//sysnb Geteuid() (uid int) 562//sysnb Getgid() (gid int) 563//sysnb Getpgid(pid int) (pgid int, err error) 564//sysnb Getpgrp() (pgrp int) 565//sysnb Getpid() (pid int) 566//sysnb Getppid() (ppid int) 567//sys Getpriority(which int, who int) (prio int, err error) 568//sysnb Getrlimit(which int, lim *Rlimit) (err error) 569//sysnb Getrusage(who int, rusage *Rusage) (err error) 570//sysnb Getsid(pid int) (sid int, err error) 571//sysnb Gettimeofday(tv *Timeval) (err error) 572//sysnb Getuid() (uid int) 573//sys Issetugid() (tainted bool) 574//sys Kill(pid int, signum syscall.Signal) (err error) 575//sys Kqueue() (fd int, err error) 576//sys Lchown(path string, uid int, gid int) (err error) 577//sys Link(path string, link string) (err error) 578//sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 579//sys Listen(s int, backlog int) (err error) 580//sys lstat(path string, stat *stat_freebsd11_t) (err error) 581//sys Mkdir(path string, mode uint32) (err error) 582//sys Mkdirat(dirfd int, path string, mode uint32) (err error) 583//sys Mkfifo(path string, mode uint32) (err error) 584//sys mknod(path string, mode uint32, dev int) (err error) 585//sys mknodat(fd int, path string, mode uint32, dev int) (err error) 586//sys mknodat_freebsd12(fd int, path string, mode uint32, dev uint64) (err error) 587//sys Nanosleep(time *Timespec, leftover *Timespec) (err error) 588//sys Open(path string, mode int, perm uint32) (fd int, err error) 589//sys Openat(fdat int, path string, mode int, perm uint32) (fd int, err error) 590//sys Pathconf(path string, name int) (val int, err error) 591//sys Pread(fd int, p []byte, offset int64) (n int, err error) 592//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 593//sys read(fd int, p []byte) (n int, err error) 594//sys Readlink(path string, buf []byte) (n int, err error) 595//sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 596//sys Rename(from string, to string) (err error) 597//sys Renameat(fromfd int, from string, tofd int, to string) (err error) 598//sys Revoke(path string) (err error) 599//sys Rmdir(path string) (err error) 600//sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 601//sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) 602//sysnb Setegid(egid int) (err error) 603//sysnb Seteuid(euid int) (err error) 604//sysnb Setgid(gid int) (err error) 605//sys Setlogin(name string) (err error) 606//sysnb Setpgid(pid int, pgid int) (err error) 607//sys Setpriority(which int, who int, prio int) (err error) 608//sysnb Setregid(rgid int, egid int) (err error) 609//sysnb Setreuid(ruid int, euid int) (err error) 610//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 611//sysnb Setresuid(ruid int, euid int, suid int) (err error) 612//sysnb Setrlimit(which int, lim *Rlimit) (err error) 613//sysnb Setsid() (pid int, err error) 614//sysnb Settimeofday(tp *Timeval) (err error) 615//sysnb Setuid(uid int) (err error) 616//sys stat(path string, stat *stat_freebsd11_t) (err error) 617//sys statfs(path string, stat *statfs_freebsd11_t) (err error) 618//sys statfs_freebsd12(path string, stat *Statfs_t) (err error) 619//sys Symlink(path string, link string) (err error) 620//sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 621//sys Sync() (err error) 622//sys Truncate(path string, length int64) (err error) 623//sys Umask(newmask int) (oldmask int) 624//sys Undelete(path string) (err error) 625//sys Unlink(path string) (err error) 626//sys Unlinkat(dirfd int, path string, flags int) (err error) 627//sys Unmount(path string, flags int) (err error) 628//sys write(fd int, p []byte) (n int, err error) 629//sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 630//sys munmap(addr uintptr, length uintptr) (err error) 631//sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 632//sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 633//sys accept4(fd int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (nfd int, err error) 634//sys utimensat(dirfd int, path string, times *[2]Timespec, flags int) (err error) 635 636/* 637 * Unimplemented 638 */ 639// Profil 640// Sigaction 641// Sigprocmask 642// Getlogin 643// Sigpending 644// Sigaltstack 645// Ioctl 646// Reboot 647// Execve 648// Vfork 649// Sbrk 650// Sstk 651// Ovadvise 652// Mincore 653// Setitimer 654// Swapon 655// Select 656// Sigsuspend 657// Readv 658// Writev 659// Nfssvc 660// Getfh 661// Quotactl 662// Mount 663// Csops 664// Waitid 665// Add_profil 666// Kdebug_trace 667// Sigreturn 668// Atsocket 669// Kqueue_from_portset_np 670// Kqueue_portset 671// Getattrlist 672// Setattrlist 673// Getdents 674// Getdirentriesattr 675// Searchfs 676// Delete 677// Copyfile 678// Watchevent 679// Waitevent 680// Modwatch 681// Fsctl 682// Initgroups 683// Posix_spawn 684// Nfsclnt 685// Fhopen 686// Minherit 687// Semsys 688// Msgsys 689// Shmsys 690// Semctl 691// Semget 692// Semop 693// Msgctl 694// Msgget 695// Msgsnd 696// Msgrcv 697// Shmat 698// Shmctl 699// Shmdt 700// Shmget 701// Shm_open 702// Shm_unlink 703// Sem_open 704// Sem_close 705// Sem_unlink 706// Sem_wait 707// Sem_trywait 708// Sem_post 709// Sem_getvalue 710// Sem_init 711// Sem_destroy 712// Open_extended 713// Umask_extended 714// Stat_extended 715// Lstat_extended 716// Fstat_extended 717// Chmod_extended 718// Fchmod_extended 719// Access_extended 720// Settid 721// Gettid 722// Setsgroups 723// Getsgroups 724// Setwgroups 725// Getwgroups 726// Mkfifo_extended 727// Mkdir_extended 728// Identitysvc 729// Shared_region_check_np 730// Shared_region_map_np 731// __pthread_mutex_destroy 732// __pthread_mutex_init 733// __pthread_mutex_lock 734// __pthread_mutex_trylock 735// __pthread_mutex_unlock 736// __pthread_cond_init 737// __pthread_cond_destroy 738// __pthread_cond_broadcast 739// __pthread_cond_signal 740// Setsid_with_pid 741// __pthread_cond_timedwait 742// Aio_fsync 743// Aio_return 744// Aio_suspend 745// Aio_cancel 746// Aio_error 747// Aio_read 748// Aio_write 749// Lio_listio 750// __pthread_cond_wait 751// Iopolicysys 752// __pthread_kill 753// __pthread_sigmask 754// __sigwait 755// __disable_threadsignal 756// __pthread_markcancel 757// __pthread_canceled 758// __semwait_signal 759// Proc_info 760// Stat64_extended 761// Lstat64_extended 762// Fstat64_extended 763// __pthread_chdir 764// __pthread_fchdir 765// Audit 766// Auditon 767// Getauid 768// Setauid 769// Getaudit 770// Setaudit 771// Getaudit_addr 772// Setaudit_addr 773// Auditctl 774// Bsdthread_create 775// Bsdthread_terminate 776// Stack_snapshot 777// Bsdthread_register 778// Workq_open 779// Workq_ops 780// __mac_execve 781// __mac_syscall 782// __mac_get_file 783// __mac_set_file 784// __mac_get_link 785// __mac_set_link 786// __mac_get_proc 787// __mac_set_proc 788// __mac_get_fd 789// __mac_set_fd 790// __mac_get_pid 791// __mac_get_lcid 792// __mac_get_lctx 793// __mac_set_lctx 794// Setlcid 795// Read_nocancel 796// Write_nocancel 797// Open_nocancel 798// Close_nocancel 799// Wait4_nocancel 800// Recvmsg_nocancel 801// Sendmsg_nocancel 802// Recvfrom_nocancel 803// Accept_nocancel 804// Fcntl_nocancel 805// Select_nocancel 806// Fsync_nocancel 807// Connect_nocancel 808// Sigsuspend_nocancel 809// Readv_nocancel 810// Writev_nocancel 811// Sendto_nocancel 812// Pread_nocancel 813// Pwrite_nocancel 814// Waitid_nocancel 815// Poll_nocancel 816// Msgsnd_nocancel 817// Msgrcv_nocancel 818// Sem_wait_nocancel 819// Aio_suspend_nocancel 820// __sigwait_nocancel 821// __semwait_signal_nocancel 822// __mac_mount 823// __mac_get_mount 824// __mac_getfsstat 825