github.com/Andyfoo/golang/x/sys@v0.0.0-20190901054642-57c1bf301704/unix/syscall_darwin.go (about) 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 // Darwin 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 13 package unix 14 15 import ( 16 "errors" 17 "syscall" 18 "unsafe" 19 ) 20 21 const ImplementsGetwd = true 22 23 func Getwd() (string, error) { 24 buf := make([]byte, 2048) 25 attrs, err := getAttrList(".", attrList{CommonAttr: attrCmnFullpath}, buf, 0) 26 if err == nil && len(attrs) == 1 && len(attrs[0]) >= 2 { 27 wd := string(attrs[0]) 28 // Sanity check that it's an absolute path and ends 29 // in a null byte, which we then strip. 30 if wd[0] == '/' && wd[len(wd)-1] == 0 { 31 return wd[:len(wd)-1], nil 32 } 33 } 34 // If pkg/os/getwd.go gets ENOTSUP, it will fall back to the 35 // slow algorithm. 36 return "", ENOTSUP 37 } 38 39 // SockaddrDatalink implements the Sockaddr interface for AF_LINK type sockets. 40 type SockaddrDatalink struct { 41 Len uint8 42 Family uint8 43 Index uint16 44 Type uint8 45 Nlen uint8 46 Alen uint8 47 Slen uint8 48 Data [12]int8 49 raw RawSockaddrDatalink 50 } 51 52 // Translate "kern.hostname" to []_C_int{0,1,2,3}. 53 func nametomib(name string) (mib []_C_int, err error) { 54 const siz = unsafe.Sizeof(mib[0]) 55 56 // NOTE(rsc): It seems strange to set the buffer to have 57 // size CTL_MAXNAME+2 but use only CTL_MAXNAME 58 // as the size. I don't know why the +2 is here, but the 59 // kernel uses +2 for its own implementation of this function. 60 // I am scared that if we don't include the +2 here, the kernel 61 // will silently write 2 words farther than we specify 62 // and we'll get memory corruption. 63 var buf [CTL_MAXNAME + 2]_C_int 64 n := uintptr(CTL_MAXNAME) * siz 65 66 p := (*byte)(unsafe.Pointer(&buf[0])) 67 bytes, err := ByteSliceFromString(name) 68 if err != nil { 69 return nil, err 70 } 71 72 // Magic sysctl: "setting" 0.3 to a string name 73 // lets you read back the array of integers form. 74 if err = sysctl([]_C_int{0, 3}, p, &n, &bytes[0], uintptr(len(name))); err != nil { 75 return nil, err 76 } 77 return buf[0 : n/siz], nil 78 } 79 80 func direntIno(buf []byte) (uint64, bool) { 81 return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino)) 82 } 83 84 func direntReclen(buf []byte) (uint64, bool) { 85 return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen)) 86 } 87 88 func direntNamlen(buf []byte) (uint64, bool) { 89 return readInt(buf, unsafe.Offsetof(Dirent{}.Namlen), unsafe.Sizeof(Dirent{}.Namlen)) 90 } 91 92 func PtraceAttach(pid int) (err error) { return ptrace(PT_ATTACH, pid, 0, 0) } 93 func PtraceDetach(pid int) (err error) { return ptrace(PT_DETACH, pid, 0, 0) } 94 95 const ( 96 attrBitMapCount = 5 97 attrCmnFullpath = 0x08000000 98 ) 99 100 type attrList struct { 101 bitmapCount uint16 102 _ uint16 103 CommonAttr uint32 104 VolAttr uint32 105 DirAttr uint32 106 FileAttr uint32 107 Forkattr uint32 108 } 109 110 func getAttrList(path string, attrList attrList, attrBuf []byte, options uint) (attrs [][]byte, err error) { 111 if len(attrBuf) < 4 { 112 return nil, errors.New("attrBuf too small") 113 } 114 attrList.bitmapCount = attrBitMapCount 115 116 var _p0 *byte 117 _p0, err = BytePtrFromString(path) 118 if err != nil { 119 return nil, err 120 } 121 122 if err := getattrlist(_p0, unsafe.Pointer(&attrList), unsafe.Pointer(&attrBuf[0]), uintptr(len(attrBuf)), int(options)); err != nil { 123 return nil, err 124 } 125 size := *(*uint32)(unsafe.Pointer(&attrBuf[0])) 126 127 // dat is the section of attrBuf that contains valid data, 128 // without the 4 byte length header. All attribute offsets 129 // are relative to dat. 130 dat := attrBuf 131 if int(size) < len(attrBuf) { 132 dat = dat[:size] 133 } 134 dat = dat[4:] // remove length prefix 135 136 for i := uint32(0); int(i) < len(dat); { 137 header := dat[i:] 138 if len(header) < 8 { 139 return attrs, errors.New("truncated attribute header") 140 } 141 datOff := *(*int32)(unsafe.Pointer(&header[0])) 142 attrLen := *(*uint32)(unsafe.Pointer(&header[4])) 143 if datOff < 0 || uint32(datOff)+attrLen > uint32(len(dat)) { 144 return attrs, errors.New("truncated results; attrBuf too small") 145 } 146 end := uint32(datOff) + attrLen 147 attrs = append(attrs, dat[datOff:end]) 148 i = end 149 if r := i % 4; r != 0 { 150 i += (4 - r) 151 } 152 } 153 return 154 } 155 156 //sys getattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) 157 158 func SysctlClockinfo(name string) (*Clockinfo, error) { 159 mib, err := sysctlmib(name) 160 if err != nil { 161 return nil, err 162 } 163 164 n := uintptr(SizeofClockinfo) 165 var ci Clockinfo 166 if err := sysctl(mib, (*byte)(unsafe.Pointer(&ci)), &n, nil, 0); err != nil { 167 return nil, err 168 } 169 if n != SizeofClockinfo { 170 return nil, EIO 171 } 172 return &ci, nil 173 } 174 175 //sysnb pipe() (r int, w int, err error) 176 177 func Pipe(p []int) (err error) { 178 if len(p) != 2 { 179 return EINVAL 180 } 181 p[0], p[1], err = pipe() 182 return 183 } 184 185 func Getfsstat(buf []Statfs_t, flags int) (n int, err error) { 186 var _p0 unsafe.Pointer 187 var bufsize uintptr 188 if len(buf) > 0 { 189 _p0 = unsafe.Pointer(&buf[0]) 190 bufsize = unsafe.Sizeof(Statfs_t{}) * uintptr(len(buf)) 191 } 192 return getfsstat(_p0, bufsize, flags) 193 } 194 195 func xattrPointer(dest []byte) *byte { 196 // It's only when dest is set to NULL that the OS X implementations of 197 // getxattr() and listxattr() return the current sizes of the named attributes. 198 // An empty byte array is not sufficient. To maintain the same behaviour as the 199 // linux implementation, we wrap around the system calls and pass in NULL when 200 // dest is empty. 201 var destp *byte 202 if len(dest) > 0 { 203 destp = &dest[0] 204 } 205 return destp 206 } 207 208 //sys getxattr(path string, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) 209 210 func Getxattr(path string, attr string, dest []byte) (sz int, err error) { 211 return getxattr(path, attr, xattrPointer(dest), len(dest), 0, 0) 212 } 213 214 func Lgetxattr(link string, attr string, dest []byte) (sz int, err error) { 215 return getxattr(link, attr, xattrPointer(dest), len(dest), 0, XATTR_NOFOLLOW) 216 } 217 218 //sys fgetxattr(fd int, attr string, dest *byte, size int, position uint32, options int) (sz int, err error) 219 220 func Fgetxattr(fd int, attr string, dest []byte) (sz int, err error) { 221 return fgetxattr(fd, attr, xattrPointer(dest), len(dest), 0, 0) 222 } 223 224 //sys setxattr(path string, attr string, data *byte, size int, position uint32, options int) (err error) 225 226 func Setxattr(path string, attr string, data []byte, flags int) (err error) { 227 // The parameters for the OS X implementation vary slightly compared to the 228 // linux system call, specifically the position parameter: 229 // 230 // linux: 231 // int setxattr( 232 // const char *path, 233 // const char *name, 234 // const void *value, 235 // size_t size, 236 // int flags 237 // ); 238 // 239 // darwin: 240 // int setxattr( 241 // const char *path, 242 // const char *name, 243 // void *value, 244 // size_t size, 245 // u_int32_t position, 246 // int options 247 // ); 248 // 249 // position specifies the offset within the extended attribute. In the 250 // current implementation, only the resource fork extended attribute makes 251 // use of this argument. For all others, position is reserved. We simply 252 // default to setting it to zero. 253 return setxattr(path, attr, xattrPointer(data), len(data), 0, flags) 254 } 255 256 func Lsetxattr(link string, attr string, data []byte, flags int) (err error) { 257 return setxattr(link, attr, xattrPointer(data), len(data), 0, flags|XATTR_NOFOLLOW) 258 } 259 260 //sys fsetxattr(fd int, attr string, data *byte, size int, position uint32, options int) (err error) 261 262 func Fsetxattr(fd int, attr string, data []byte, flags int) (err error) { 263 return fsetxattr(fd, attr, xattrPointer(data), len(data), 0, 0) 264 } 265 266 //sys removexattr(path string, attr string, options int) (err error) 267 268 func Removexattr(path string, attr string) (err error) { 269 // We wrap around and explicitly zero out the options provided to the OS X 270 // implementation of removexattr, we do so for interoperability with the 271 // linux variant. 272 return removexattr(path, attr, 0) 273 } 274 275 func Lremovexattr(link string, attr string) (err error) { 276 return removexattr(link, attr, XATTR_NOFOLLOW) 277 } 278 279 //sys fremovexattr(fd int, attr string, options int) (err error) 280 281 func Fremovexattr(fd int, attr string) (err error) { 282 return fremovexattr(fd, attr, 0) 283 } 284 285 //sys listxattr(path string, dest *byte, size int, options int) (sz int, err error) 286 287 func Listxattr(path string, dest []byte) (sz int, err error) { 288 return listxattr(path, xattrPointer(dest), len(dest), 0) 289 } 290 291 func Llistxattr(link string, dest []byte) (sz int, err error) { 292 return listxattr(link, xattrPointer(dest), len(dest), XATTR_NOFOLLOW) 293 } 294 295 //sys flistxattr(fd int, dest *byte, size int, options int) (sz int, err error) 296 297 func Flistxattr(fd int, dest []byte) (sz int, err error) { 298 return flistxattr(fd, xattrPointer(dest), len(dest), 0) 299 } 300 301 func setattrlistTimes(path string, times []Timespec, flags int) error { 302 _p0, err := BytePtrFromString(path) 303 if err != nil { 304 return err 305 } 306 307 var attrList attrList 308 attrList.bitmapCount = ATTR_BIT_MAP_COUNT 309 attrList.CommonAttr = ATTR_CMN_MODTIME | ATTR_CMN_ACCTIME 310 311 // order is mtime, atime: the opposite of Chtimes 312 attributes := [2]Timespec{times[1], times[0]} 313 options := 0 314 if flags&AT_SYMLINK_NOFOLLOW != 0 { 315 options |= FSOPT_NOFOLLOW 316 } 317 return setattrlist( 318 _p0, 319 unsafe.Pointer(&attrList), 320 unsafe.Pointer(&attributes), 321 unsafe.Sizeof(attributes), 322 options) 323 } 324 325 //sys setattrlist(path *byte, list unsafe.Pointer, buf unsafe.Pointer, size uintptr, options int) (err error) 326 327 func utimensat(dirfd int, path string, times *[2]Timespec, flags int) error { 328 // Darwin doesn't support SYS_UTIMENSAT 329 return ENOSYS 330 } 331 332 /* 333 * Wrapped 334 */ 335 336 //sys kill(pid int, signum int, posix int) (err error) 337 338 func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(signum), 1) } 339 340 //sys ioctl(fd int, req uint, arg uintptr) (err error) 341 342 func Uname(uname *Utsname) error { 343 mib := []_C_int{CTL_KERN, KERN_OSTYPE} 344 n := unsafe.Sizeof(uname.Sysname) 345 if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil { 346 return err 347 } 348 349 mib = []_C_int{CTL_KERN, KERN_HOSTNAME} 350 n = unsafe.Sizeof(uname.Nodename) 351 if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil { 352 return err 353 } 354 355 mib = []_C_int{CTL_KERN, KERN_OSRELEASE} 356 n = unsafe.Sizeof(uname.Release) 357 if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil { 358 return err 359 } 360 361 mib = []_C_int{CTL_KERN, KERN_VERSION} 362 n = unsafe.Sizeof(uname.Version) 363 if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil { 364 return err 365 } 366 367 // The version might have newlines or tabs in it, convert them to 368 // spaces. 369 for i, b := range uname.Version { 370 if b == '\n' || b == '\t' { 371 if i == len(uname.Version)-1 { 372 uname.Version[i] = 0 373 } else { 374 uname.Version[i] = ' ' 375 } 376 } 377 } 378 379 mib = []_C_int{CTL_HW, HW_MACHINE} 380 n = unsafe.Sizeof(uname.Machine) 381 if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil { 382 return err 383 } 384 385 return nil 386 } 387 388 func Sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) { 389 if raceenabled { 390 raceReleaseMerge(unsafe.Pointer(&ioSync)) 391 } 392 var length = int64(count) 393 err = sendfile(infd, outfd, *offset, &length, nil, 0) 394 written = int(length) 395 return 396 } 397 398 //sys sendfile(infd int, outfd int, offset int64, len *int64, hdtr unsafe.Pointer, flags int) (err error) 399 400 /* 401 * Exposed directly 402 */ 403 //sys Access(path string, mode uint32) (err error) 404 //sys Adjtime(delta *Timeval, olddelta *Timeval) (err error) 405 //sys Chdir(path string) (err error) 406 //sys Chflags(path string, flags int) (err error) 407 //sys Chmod(path string, mode uint32) (err error) 408 //sys Chown(path string, uid int, gid int) (err error) 409 //sys Chroot(path string) (err error) 410 //sys ClockGettime(clockid int32, time *Timespec) (err error) 411 //sys Close(fd int) (err error) 412 //sys Dup(fd int) (nfd int, err error) 413 //sys Dup2(from int, to int) (err error) 414 //sys Exchangedata(path1 string, path2 string, options int) (err error) 415 //sys Exit(code int) 416 //sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error) 417 //sys Fchdir(fd int) (err error) 418 //sys Fchflags(fd int, flags int) (err error) 419 //sys Fchmod(fd int, mode uint32) (err error) 420 //sys Fchmodat(dirfd int, path string, mode uint32, flags int) (err error) 421 //sys Fchown(fd int, uid int, gid int) (err error) 422 //sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error) 423 //sys Flock(fd int, how int) (err error) 424 //sys Fpathconf(fd int, name int) (val int, err error) 425 //sys Fsync(fd int) (err error) 426 //sys Ftruncate(fd int, length int64) (err error) 427 //sys Getdtablesize() (size int) 428 //sysnb Getegid() (egid int) 429 //sysnb Geteuid() (uid int) 430 //sysnb Getgid() (gid int) 431 //sysnb Getpgid(pid int) (pgid int, err error) 432 //sysnb Getpgrp() (pgrp int) 433 //sysnb Getpid() (pid int) 434 //sysnb Getppid() (ppid int) 435 //sys Getpriority(which int, who int) (prio int, err error) 436 //sysnb Getrlimit(which int, lim *Rlimit) (err error) 437 //sysnb Getrusage(who int, rusage *Rusage) (err error) 438 //sysnb Getsid(pid int) (sid int, err error) 439 //sysnb Getuid() (uid int) 440 //sysnb Issetugid() (tainted bool) 441 //sys Kqueue() (fd int, err error) 442 //sys Lchown(path string, uid int, gid int) (err error) 443 //sys Link(path string, link string) (err error) 444 //sys Linkat(pathfd int, path string, linkfd int, link string, flags int) (err error) 445 //sys Listen(s int, backlog int) (err error) 446 //sys Mkdir(path string, mode uint32) (err error) 447 //sys Mkdirat(dirfd int, path string, mode uint32) (err error) 448 //sys Mkfifo(path string, mode uint32) (err error) 449 //sys Mknod(path string, mode uint32, dev int) (err error) 450 //sys Open(path string, mode int, perm uint32) (fd int, err error) 451 //sys Openat(dirfd int, path string, mode int, perm uint32) (fd int, err error) 452 //sys Pathconf(path string, name int) (val int, err error) 453 //sys Pread(fd int, p []byte, offset int64) (n int, err error) 454 //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) 455 //sys read(fd int, p []byte) (n int, err error) 456 //sys Readlink(path string, buf []byte) (n int, err error) 457 //sys Readlinkat(dirfd int, path string, buf []byte) (n int, err error) 458 //sys Rename(from string, to string) (err error) 459 //sys Renameat(fromfd int, from string, tofd int, to string) (err error) 460 //sys Revoke(path string) (err error) 461 //sys Rmdir(path string) (err error) 462 //sys Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_LSEEK 463 //sys Select(n int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (err error) 464 //sys Setegid(egid int) (err error) 465 //sysnb Seteuid(euid int) (err error) 466 //sysnb Setgid(gid int) (err error) 467 //sys Setlogin(name string) (err error) 468 //sysnb Setpgid(pid int, pgid int) (err error) 469 //sys Setpriority(which int, who int, prio int) (err error) 470 //sys Setprivexec(flag int) (err error) 471 //sysnb Setregid(rgid int, egid int) (err error) 472 //sysnb Setreuid(ruid int, euid int) (err error) 473 //sysnb Setrlimit(which int, lim *Rlimit) (err error) 474 //sysnb Setsid() (pid int, err error) 475 //sysnb Settimeofday(tp *Timeval) (err error) 476 //sysnb Setuid(uid int) (err error) 477 //sys Symlink(path string, link string) (err error) 478 //sys Symlinkat(oldpath string, newdirfd int, newpath string) (err error) 479 //sys Sync() (err error) 480 //sys Truncate(path string, length int64) (err error) 481 //sys Umask(newmask int) (oldmask int) 482 //sys Undelete(path string) (err error) 483 //sys Unlink(path string) (err error) 484 //sys Unlinkat(dirfd int, path string, flags int) (err error) 485 //sys Unmount(path string, flags int) (err error) 486 //sys write(fd int, p []byte) (n int, err error) 487 //sys mmap(addr uintptr, length uintptr, prot int, flag int, fd int, pos int64) (ret uintptr, err error) 488 //sys munmap(addr uintptr, length uintptr) (err error) 489 //sys readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_READ 490 //sys writelen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_WRITE 491 492 /* 493 * Unimplemented 494 */ 495 // Profil 496 // Sigaction 497 // Sigprocmask 498 // Getlogin 499 // Sigpending 500 // Sigaltstack 501 // Ioctl 502 // Reboot 503 // Execve 504 // Vfork 505 // Sbrk 506 // Sstk 507 // Ovadvise 508 // Mincore 509 // Setitimer 510 // Swapon 511 // Select 512 // Sigsuspend 513 // Readv 514 // Writev 515 // Nfssvc 516 // Getfh 517 // Quotactl 518 // Mount 519 // Csops 520 // Waitid 521 // Add_profil 522 // Kdebug_trace 523 // Sigreturn 524 // Atsocket 525 // Kqueue_from_portset_np 526 // Kqueue_portset 527 // Getattrlist 528 // Setattrlist 529 // Getdirentriesattr 530 // Searchfs 531 // Delete 532 // Copyfile 533 // Watchevent 534 // Waitevent 535 // Modwatch 536 // Fsctl 537 // Initgroups 538 // Posix_spawn 539 // Nfsclnt 540 // Fhopen 541 // Minherit 542 // Semsys 543 // Msgsys 544 // Shmsys 545 // Semctl 546 // Semget 547 // Semop 548 // Msgctl 549 // Msgget 550 // Msgsnd 551 // Msgrcv 552 // Shmat 553 // Shmctl 554 // Shmdt 555 // Shmget 556 // Shm_open 557 // Shm_unlink 558 // Sem_open 559 // Sem_close 560 // Sem_unlink 561 // Sem_wait 562 // Sem_trywait 563 // Sem_post 564 // Sem_getvalue 565 // Sem_init 566 // Sem_destroy 567 // Open_extended 568 // Umask_extended 569 // Stat_extended 570 // Lstat_extended 571 // Fstat_extended 572 // Chmod_extended 573 // Fchmod_extended 574 // Access_extended 575 // Settid 576 // Gettid 577 // Setsgroups 578 // Getsgroups 579 // Setwgroups 580 // Getwgroups 581 // Mkfifo_extended 582 // Mkdir_extended 583 // Identitysvc 584 // Shared_region_check_np 585 // Shared_region_map_np 586 // __pthread_mutex_destroy 587 // __pthread_mutex_init 588 // __pthread_mutex_lock 589 // __pthread_mutex_trylock 590 // __pthread_mutex_unlock 591 // __pthread_cond_init 592 // __pthread_cond_destroy 593 // __pthread_cond_broadcast 594 // __pthread_cond_signal 595 // Setsid_with_pid 596 // __pthread_cond_timedwait 597 // Aio_fsync 598 // Aio_return 599 // Aio_suspend 600 // Aio_cancel 601 // Aio_error 602 // Aio_read 603 // Aio_write 604 // Lio_listio 605 // __pthread_cond_wait 606 // Iopolicysys 607 // __pthread_kill 608 // __pthread_sigmask 609 // __sigwait 610 // __disable_threadsignal 611 // __pthread_markcancel 612 // __pthread_canceled 613 // __semwait_signal 614 // Proc_info 615 // sendfile 616 // Stat64_extended 617 // Lstat64_extended 618 // Fstat64_extended 619 // __pthread_chdir 620 // __pthread_fchdir 621 // Audit 622 // Auditon 623 // Getauid 624 // Setauid 625 // Getaudit 626 // Setaudit 627 // Getaudit_addr 628 // Setaudit_addr 629 // Auditctl 630 // Bsdthread_create 631 // Bsdthread_terminate 632 // Stack_snapshot 633 // Bsdthread_register 634 // Workq_open 635 // Workq_ops 636 // __mac_execve 637 // __mac_syscall 638 // __mac_get_file 639 // __mac_set_file 640 // __mac_get_link 641 // __mac_set_link 642 // __mac_get_proc 643 // __mac_set_proc 644 // __mac_get_fd 645 // __mac_set_fd 646 // __mac_get_pid 647 // __mac_get_lcid 648 // __mac_get_lctx 649 // __mac_set_lctx 650 // Setlcid 651 // Read_nocancel 652 // Write_nocancel 653 // Open_nocancel 654 // Close_nocancel 655 // Wait4_nocancel 656 // Recvmsg_nocancel 657 // Sendmsg_nocancel 658 // Recvfrom_nocancel 659 // Accept_nocancel 660 // Fcntl_nocancel 661 // Select_nocancel 662 // Fsync_nocancel 663 // Connect_nocancel 664 // Sigsuspend_nocancel 665 // Readv_nocancel 666 // Writev_nocancel 667 // Sendto_nocancel 668 // Pread_nocancel 669 // Pwrite_nocancel 670 // Waitid_nocancel 671 // Poll_nocancel 672 // Msgsnd_nocancel 673 // Msgrcv_nocancel 674 // Sem_wait_nocancel 675 // Aio_suspend_nocancel 676 // __sigwait_nocancel 677 // __semwait_signal_nocancel 678 // __mac_mount 679 // __mac_get_mount 680 // __mac_getfsstat