svr4_fcntl.c revision 89306
1/* 2 * Copyright (c) 1998 Mark Newton 3 * Copyright (c) 1994, 1997 Christos Zoulas. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christos Zoulas. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD: head/sys/compat/svr4/svr4_fcntl.c 89306 2002-01-13 11:58:06Z alfred $ 32 */ 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/file.h> 36#include <sys/filedesc.h> 37/*#include <sys/ioctl.h>*/ 38#include <sys/lock.h> 39#include <sys/mount.h> 40#include <sys/mutex.h> 41#include <sys/namei.h> 42#include <sys/proc.h> 43#include <sys/stat.h> 44#include <sys/unistd.h> 45#include <sys/vnode.h> 46 47#include <sys/sysproto.h> 48 49#include <compat/svr4/svr4.h> 50#include <compat/svr4/svr4_types.h> 51#include <compat/svr4/svr4_signal.h> 52#include <compat/svr4/svr4_proto.h> 53#include <compat/svr4/svr4_util.h> 54#include <compat/svr4/svr4_fcntl.h> 55 56static int svr4_to_bsd_flags __P((int)); 57static u_long svr4_to_bsd_cmd __P((u_long)); 58static int fd_revoke __P((struct thread *, int)); 59static int fd_truncate __P((struct thread *, int, struct flock *)); 60static int bsd_to_svr4_flags __P((int)); 61static void bsd_to_svr4_flock __P((struct flock *, struct svr4_flock *)); 62static void svr4_to_bsd_flock __P((struct svr4_flock *, struct flock *)); 63static void bsd_to_svr4_flock64 __P((struct flock *, struct svr4_flock64 *)); 64static void svr4_to_bsd_flock64 __P((struct svr4_flock64 *, struct flock *)); 65 66static u_long 67svr4_to_bsd_cmd(cmd) 68 u_long cmd; 69{ 70 switch (cmd) { 71 case SVR4_F_DUPFD: 72 return F_DUPFD; 73 case SVR4_F_GETFD: 74 return F_GETFD; 75 case SVR4_F_SETFD: 76 return F_SETFD; 77 case SVR4_F_GETFL: 78 return F_GETFL; 79 case SVR4_F_SETFL: 80 return F_SETFL; 81 case SVR4_F_GETLK: 82 return F_GETLK; 83 case SVR4_F_SETLK: 84 return F_SETLK; 85 case SVR4_F_SETLKW: 86 return F_SETLKW; 87 default: 88 return -1; 89 } 90} 91 92static int 93svr4_to_bsd_flags(l) 94 int l; 95{ 96 int r = 0; 97 r |= (l & SVR4_O_RDONLY) ? O_RDONLY : 0; 98 r |= (l & SVR4_O_WRONLY) ? O_WRONLY : 0; 99 r |= (l & SVR4_O_RDWR) ? O_RDWR : 0; 100 r |= (l & SVR4_O_NDELAY) ? O_NONBLOCK : 0; 101 r |= (l & SVR4_O_APPEND) ? O_APPEND : 0; 102 r |= (l & SVR4_O_SYNC) ? O_FSYNC : 0; 103 r |= (l & SVR4_O_NONBLOCK) ? O_NONBLOCK : 0; 104 r |= (l & SVR4_O_PRIV) ? O_EXLOCK : 0; 105 r |= (l & SVR4_O_CREAT) ? O_CREAT : 0; 106 r |= (l & SVR4_O_TRUNC) ? O_TRUNC : 0; 107 r |= (l & SVR4_O_EXCL) ? O_EXCL : 0; 108 r |= (l & SVR4_O_NOCTTY) ? O_NOCTTY : 0; 109 return r; 110} 111 112static int 113bsd_to_svr4_flags(l) 114 int l; 115{ 116 int r = 0; 117 r |= (l & O_RDONLY) ? SVR4_O_RDONLY : 0; 118 r |= (l & O_WRONLY) ? SVR4_O_WRONLY : 0; 119 r |= (l & O_RDWR) ? SVR4_O_RDWR : 0; 120 r |= (l & O_NDELAY) ? SVR4_O_NONBLOCK : 0; 121 r |= (l & O_APPEND) ? SVR4_O_APPEND : 0; 122 r |= (l & O_FSYNC) ? SVR4_O_SYNC : 0; 123 r |= (l & O_NONBLOCK) ? SVR4_O_NONBLOCK : 0; 124 r |= (l & O_EXLOCK) ? SVR4_O_PRIV : 0; 125 r |= (l & O_CREAT) ? SVR4_O_CREAT : 0; 126 r |= (l & O_TRUNC) ? SVR4_O_TRUNC : 0; 127 r |= (l & O_EXCL) ? SVR4_O_EXCL : 0; 128 r |= (l & O_NOCTTY) ? SVR4_O_NOCTTY : 0; 129 return r; 130} 131 132 133static void 134bsd_to_svr4_flock(iflp, oflp) 135 struct flock *iflp; 136 struct svr4_flock *oflp; 137{ 138 switch (iflp->l_type) { 139 case F_RDLCK: 140 oflp->l_type = SVR4_F_RDLCK; 141 break; 142 case F_WRLCK: 143 oflp->l_type = SVR4_F_WRLCK; 144 break; 145 case F_UNLCK: 146 oflp->l_type = SVR4_F_UNLCK; 147 break; 148 default: 149 oflp->l_type = -1; 150 break; 151 } 152 153 oflp->l_whence = (short) iflp->l_whence; 154 oflp->l_start = (svr4_off_t) iflp->l_start; 155 oflp->l_len = (svr4_off_t) iflp->l_len; 156 oflp->l_sysid = 0; 157 oflp->l_pid = (svr4_pid_t) iflp->l_pid; 158} 159 160 161static void 162svr4_to_bsd_flock(iflp, oflp) 163 struct svr4_flock *iflp; 164 struct flock *oflp; 165{ 166 switch (iflp->l_type) { 167 case SVR4_F_RDLCK: 168 oflp->l_type = F_RDLCK; 169 break; 170 case SVR4_F_WRLCK: 171 oflp->l_type = F_WRLCK; 172 break; 173 case SVR4_F_UNLCK: 174 oflp->l_type = F_UNLCK; 175 break; 176 default: 177 oflp->l_type = -1; 178 break; 179 } 180 181 oflp->l_whence = iflp->l_whence; 182 oflp->l_start = (off_t) iflp->l_start; 183 oflp->l_len = (off_t) iflp->l_len; 184 oflp->l_pid = (pid_t) iflp->l_pid; 185 186} 187 188static void 189bsd_to_svr4_flock64(iflp, oflp) 190 struct flock *iflp; 191 struct svr4_flock64 *oflp; 192{ 193 switch (iflp->l_type) { 194 case F_RDLCK: 195 oflp->l_type = SVR4_F_RDLCK; 196 break; 197 case F_WRLCK: 198 oflp->l_type = SVR4_F_WRLCK; 199 break; 200 case F_UNLCK: 201 oflp->l_type = SVR4_F_UNLCK; 202 break; 203 default: 204 oflp->l_type = -1; 205 break; 206 } 207 208 oflp->l_whence = (short) iflp->l_whence; 209 oflp->l_start = (svr4_off64_t) iflp->l_start; 210 oflp->l_len = (svr4_off64_t) iflp->l_len; 211 oflp->l_sysid = 0; 212 oflp->l_pid = (svr4_pid_t) iflp->l_pid; 213} 214 215 216static void 217svr4_to_bsd_flock64(iflp, oflp) 218 struct svr4_flock64 *iflp; 219 struct flock *oflp; 220{ 221 switch (iflp->l_type) { 222 case SVR4_F_RDLCK: 223 oflp->l_type = F_RDLCK; 224 break; 225 case SVR4_F_WRLCK: 226 oflp->l_type = F_WRLCK; 227 break; 228 case SVR4_F_UNLCK: 229 oflp->l_type = F_UNLCK; 230 break; 231 default: 232 oflp->l_type = -1; 233 break; 234 } 235 236 oflp->l_whence = iflp->l_whence; 237 oflp->l_start = (off_t) iflp->l_start; 238 oflp->l_len = (off_t) iflp->l_len; 239 oflp->l_pid = (pid_t) iflp->l_pid; 240 241} 242 243 244static int 245fd_revoke(td, fd) 246 struct thread *td; 247 int fd; 248{ 249 struct file *fp; 250 struct vnode *vp; 251 struct mount *mp; 252 struct vattr vattr; 253 int error, *retval; 254 255 retval = td->td_retval; 256 fp = ffind_hold(td, fd); 257 if (fp == NULL) 258 return EBADF; 259 260 if (fp->f_type != DTYPE_VNODE) { 261 fdrop(fp, td); 262 return EINVAL; 263 } 264 265 vp = (struct vnode *) fp->f_data; 266 267 if (vp->v_type != VCHR && vp->v_type != VBLK) { 268 error = EINVAL; 269 goto out; 270 } 271 272 if ((error = VOP_GETATTR(vp, &vattr, td->td_proc->p_ucred, td)) != 0) 273 goto out; 274 275 if (td->td_proc->p_ucred->cr_uid != vattr.va_uid && 276 (error = suser_td(td)) != 0) 277 goto out; 278 279 if ((error = vn_start_write(vp, &mp, V_WAIT | PCATCH)) != 0) 280 goto out; 281 if (vcount(vp) > 1) 282 VOP_REVOKE(vp, REVOKEALL); 283 vn_finished_write(mp); 284out: 285 vrele(vp); 286 fdrop(fp, td); 287 return error; 288} 289 290 291static int 292fd_truncate(td, fd, flp) 293 struct thread *td; 294 int fd; 295 struct flock *flp; 296{ 297 struct file *fp; 298 off_t start, length; 299 struct vnode *vp; 300 struct vattr vattr; 301 int error, *retval; 302 struct ftruncate_args ft; 303 304 retval = td->td_retval; 305 306 /* 307 * We only support truncating the file. 308 */ 309 fp = ffind_hold(td, fd); 310 if (fp == NULL) 311 return EBADF; 312 313 vp = (struct vnode *)fp->f_data; 314 if (fp->f_type != DTYPE_VNODE || vp->v_type == VFIFO) { 315 fdrop(fp, td); 316 return ESPIPE; 317 } 318 319 if ((error = VOP_GETATTR(vp, &vattr, td->td_proc->p_ucred, td)) != 0) 320 fdrop(fp, td); 321 return error; 322 } 323 324 length = vattr.va_size; 325 326 switch (flp->l_whence) { 327 case SEEK_CUR: 328 start = fp->f_offset + flp->l_start; 329 break; 330 331 case SEEK_END: 332 start = flp->l_start + length; 333 break; 334 335 case SEEK_SET: 336 start = flp->l_start; 337 break; 338 339 default: 340 fdrop(fp, td); 341 return EINVAL; 342 } 343 344 if (start + flp->l_len < length) { 345 /* We don't support free'ing in the middle of the file */ 346 return EINVAL; 347 } 348 349 SCARG(&ft, fd) = fd; 350 SCARG(&ft, length) = start; 351 352 error = ftruncate(td, &ft); 353 354 fdrop(fp, td); 355 return (error); 356} 357 358int 359svr4_sys_open(td, uap) 360 register struct thread *td; 361 struct svr4_sys_open_args *uap; 362{ 363 struct proc *p = td->td_proc; 364 int error, retval; 365 struct open_args cup; 366 367 caddr_t sg = stackgap_init(); 368 CHECKALTEXIST(td, &sg, SCARG(uap, path)); 369 370 (&cup)->path = uap->path; 371 (&cup)->flags = svr4_to_bsd_flags(uap->flags); 372 (&cup)->mode = uap->mode; 373 error = open(td, &cup); 374 375 if (error) { 376 /* uprintf("svr4_open(%s, 0x%0x, 0%o): %d\n", uap->path, 377 uap->flags, uap->mode, error);*/ 378 return error; 379 } 380 381 retval = td->td_retval[0]; 382 383 PROC_LOCK(p); 384 if (!(SCARG(&cup, flags) & O_NOCTTY) && SESS_LEADER(p) && 385 !(td->td_proc->p_flag & P_CONTROLT)) { 386#if defined(NOTYET) 387 struct file *fp; 388 389 fp = ffind_hold(td, retval); 390 PROC_UNLOCK(p); 391 /* 392 * we may have lost a race the above open() and 393 * another thread issuing a close() 394 */ 395 if (fp == NULL) 396 return (EBADF); /* XXX: correct errno? */ 397 /* ignore any error, just give it a try */ 398 if (fp->f_type == DTYPE_VNODE) 399 fo_ioctl(fp, TIOCSCTTY, (caddr_t) 0, td); 400 fdrop(fp, td); 401 } else { 402 PROC_UNLOCK(p); 403 } 404#else 405 } 406 PROC_UNLOCK(p); 407#endif 408 return error; 409} 410 411int 412svr4_sys_open64(td, uap) 413 register struct thread *td; 414 struct svr4_sys_open64_args *uap; 415{ 416 return svr4_sys_open(td, (struct svr4_sys_open_args *)uap); 417} 418 419int 420svr4_sys_creat(td, uap) 421 register struct thread *td; 422 struct svr4_sys_creat_args *uap; 423{ 424 struct open_args cup; 425 426 caddr_t sg = stackgap_init(); 427 CHECKALTEXIST(td, &sg, SCARG(uap, path)); 428 429 SCARG(&cup, path) = SCARG(uap, path); 430 SCARG(&cup, mode) = SCARG(uap, mode); 431 SCARG(&cup, flags) = O_WRONLY | O_CREAT | O_TRUNC; 432 433 return open(td, &cup); 434} 435 436int 437svr4_sys_creat64(td, uap) 438 register struct thread *td; 439 struct svr4_sys_creat64_args *uap; 440{ 441 return svr4_sys_creat(td, (struct svr4_sys_creat_args *)uap); 442} 443 444int 445svr4_sys_llseek(td, uap) 446 register struct thread *td; 447 struct svr4_sys_llseek_args *uap; 448{ 449 struct lseek_args ap; 450 451 SCARG(&ap, fd) = SCARG(uap, fd); 452 453#if BYTE_ORDER == BIG_ENDIAN 454 SCARG(&ap, offset) = (((u_int64_t) SCARG(uap, offset1)) << 32) | 455 SCARG(uap, offset2); 456#else 457 SCARG(&ap, offset) = (((u_int64_t) SCARG(uap, offset2)) << 32) | 458 SCARG(uap, offset1); 459#endif 460 SCARG(&ap, whence) = SCARG(uap, whence); 461 462 return lseek(td, &ap); 463} 464 465int 466svr4_sys_access(td, uap) 467 register struct thread *td; 468 struct svr4_sys_access_args *uap; 469{ 470 struct access_args cup; 471 int *retval; 472 473 caddr_t sg = stackgap_init(); 474 CHECKALTEXIST(td, &sg, SCARG(uap, path)); 475 476 retval = td->td_retval; 477 478 SCARG(&cup, path) = SCARG(uap, path); 479 SCARG(&cup, flags) = SCARG(uap, flags); 480 481 return access(td, &cup); 482} 483 484#if defined(NOTYET) 485int 486svr4_sys_pread(td, uap) 487 register struct thread *td; 488 struct svr4_sys_pread_args *uap; 489{ 490 struct pread_args pra; 491 492 /* 493 * Just translate the args structure and call the NetBSD 494 * pread(2) system call (offset type is 64-bit in NetBSD). 495 */ 496 SCARG(&pra, fd) = SCARG(uap, fd); 497 SCARG(&pra, buf) = SCARG(uap, buf); 498 SCARG(&pra, nbyte) = SCARG(uap, nbyte); 499 SCARG(&pra, offset) = SCARG(uap, off); 500 501 return pread(td, &pra); 502} 503#endif 504 505#if defined(NOTYET) 506int 507svr4_sys_pread64(td, v, retval) 508 register struct thread *td; 509 void *v; 510 register_t *retval; 511{ 512 513 struct svr4_sys_pread64_args *uap = v; 514 struct sys_pread_args pra; 515 516 /* 517 * Just translate the args structure and call the NetBSD 518 * pread(2) system call (offset type is 64-bit in NetBSD). 519 */ 520 SCARG(&pra, fd) = SCARG(uap, fd); 521 SCARG(&pra, buf) = SCARG(uap, buf); 522 SCARG(&pra, nbyte) = SCARG(uap, nbyte); 523 SCARG(&pra, offset) = SCARG(uap, off); 524 525 return (sys_pread(td, &pra, retval)); 526} 527#endif /* NOTYET */ 528 529#if defined(NOTYET) 530int 531svr4_sys_pwrite(td, uap) 532 register struct thread *td; 533 struct svr4_sys_pwrite_args *uap; 534{ 535 struct pwrite_args pwa; 536 537 /* 538 * Just translate the args structure and call the NetBSD 539 * pwrite(2) system call (offset type is 64-bit in NetBSD). 540 */ 541 SCARG(&pwa, fd) = SCARG(uap, fd); 542 SCARG(&pwa, buf) = SCARG(uap, buf); 543 SCARG(&pwa, nbyte) = SCARG(uap, nbyte); 544 SCARG(&pwa, offset) = SCARG(uap, off); 545 546 return pwrite(td, &pwa); 547} 548#endif 549 550#if defined(NOTYET) 551int 552svr4_sys_pwrite64(td, v, retval) 553 register struct thread *td; 554 void *v; 555 register_t *retval; 556{ 557 struct svr4_sys_pwrite64_args *uap = v; 558 struct sys_pwrite_args pwa; 559 560 /* 561 * Just translate the args structure and call the NetBSD 562 * pwrite(2) system call (offset type is 64-bit in NetBSD). 563 */ 564 SCARG(&pwa, fd) = SCARG(uap, fd); 565 SCARG(&pwa, buf) = SCARG(uap, buf); 566 SCARG(&pwa, nbyte) = SCARG(uap, nbyte); 567 SCARG(&pwa, offset) = SCARG(uap, off); 568 569 return (sys_pwrite(td, &pwa, retval)); 570} 571#endif /* NOTYET */ 572 573int 574svr4_sys_fcntl(td, uap) 575 register struct thread *td; 576 struct svr4_sys_fcntl_args *uap; 577{ 578 int error; 579 struct fcntl_args fa; 580 int *retval; 581 582 retval = td->td_retval; 583 584 SCARG(&fa, fd) = SCARG(uap, fd); 585 SCARG(&fa, cmd) = svr4_to_bsd_cmd(SCARG(uap, cmd)); 586 587 switch (SCARG(&fa, cmd)) { 588 case F_DUPFD: 589 case F_GETFD: 590 case F_SETFD: 591 SCARG(&fa, arg) = (long) SCARG(uap, arg); 592 return fcntl(td, &fa); 593 594 case F_GETFL: 595 SCARG(&fa, arg) = (long) SCARG(uap, arg); 596 error = fcntl(td, &fa); 597 if (error) 598 return error; 599 *retval = bsd_to_svr4_flags(*retval); 600 return error; 601 602 case F_SETFL: 603 { 604 /* 605 * we must save the O_ASYNC flag, as that is 606 * handled by ioctl(_, I_SETSIG, _) emulation. 607 */ 608 long cmd; 609 int flags; 610 611 DPRINTF(("Setting flags %p\n", SCARG(uap, arg))); 612 cmd = SCARG(&fa, cmd); /* save it for a while */ 613 614 SCARG(&fa, cmd) = F_GETFL; 615 if ((error = fcntl(td, &fa)) != 0) 616 return error; 617 flags = *retval; 618 flags &= O_ASYNC; 619 flags |= svr4_to_bsd_flags((u_long) SCARG(uap, arg)); 620 SCARG(&fa, cmd) = cmd; 621 SCARG(&fa, arg) = (long) flags; 622 return fcntl(td, &fa); 623 } 624 625 case F_GETLK: 626 case F_SETLK: 627 case F_SETLKW: 628 { 629 struct svr4_flock ifl; 630 struct flock *flp, fl; 631 caddr_t sg = stackgap_init(); 632 633 flp = stackgap_alloc(&sg, sizeof(struct flock)); 634 SCARG(&fa, arg) = (long) flp; 635 636 error = copyin(SCARG(uap, arg), &ifl, sizeof ifl); 637 if (error) 638 return error; 639 640 svr4_to_bsd_flock(&ifl, &fl); 641 642 error = copyout(&fl, flp, sizeof fl); 643 if (error) 644 return error; 645 646 error = fcntl(td, &fa); 647 if (error || SCARG(&fa, cmd) != F_GETLK) 648 return error; 649 650 error = copyin(flp, &fl, sizeof fl); 651 if (error) 652 return error; 653 654 bsd_to_svr4_flock(&fl, &ifl); 655 656 return copyout(&ifl, SCARG(uap, arg), sizeof ifl); 657 } 658 case -1: 659 switch (SCARG(uap, cmd)) { 660 case SVR4_F_DUP2FD: 661 { 662 struct dup2_args du; 663 664 SCARG(&du, from) = SCARG(uap, fd); 665 SCARG(&du, to) = (int)SCARG(uap, arg); 666 error = dup2(td, &du); 667 if (error) 668 return error; 669 *retval = SCARG(&du, to); 670 return 0; 671 } 672 673 case SVR4_F_FREESP: 674 { 675 struct svr4_flock ifl; 676 struct flock fl; 677 678 error = copyin(SCARG(uap, arg), &ifl, 679 sizeof ifl); 680 if (error) 681 return error; 682 svr4_to_bsd_flock(&ifl, &fl); 683 return fd_truncate(td, SCARG(uap, fd), &fl); 684 } 685 686 case SVR4_F_GETLK64: 687 case SVR4_F_SETLK64: 688 case SVR4_F_SETLKW64: 689 { 690 struct svr4_flock64 ifl; 691 struct flock *flp, fl; 692 caddr_t sg = stackgap_init(); 693 694 flp = stackgap_alloc(&sg, sizeof(struct flock)); 695 SCARG(&fa, arg) = (long) flp; 696 697 error = copyin(SCARG(uap, arg), &ifl, 698 sizeof ifl); 699 if (error) 700 return error; 701 702 svr4_to_bsd_flock64(&ifl, &fl); 703 704 error = copyout(&fl, flp, sizeof fl); 705 if (error) 706 return error; 707 708 error = fcntl(td, &fa); 709 if (error || SCARG(&fa, cmd) != F_GETLK) 710 return error; 711 712 error = copyin(flp, &fl, sizeof fl); 713 if (error) 714 return error; 715 716 bsd_to_svr4_flock64(&fl, &ifl); 717 718 return copyout(&ifl, SCARG(uap, arg), 719 sizeof ifl); 720 } 721 722 case SVR4_F_FREESP64: 723 { 724 struct svr4_flock64 ifl; 725 struct flock fl; 726 727 error = copyin(SCARG(uap, arg), &ifl, 728 sizeof ifl); 729 if (error) 730 return error; 731 svr4_to_bsd_flock64(&ifl, &fl); 732 return fd_truncate(td, SCARG(uap, fd), &fl); 733 } 734 735 case SVR4_F_REVOKE: 736 return fd_revoke(td, SCARG(uap, fd)); 737 738 default: 739 return ENOSYS; 740 } 741 742 default: 743 return ENOSYS; 744 } 745} 746