linux32_unistd.c revision 1.7
1 /* $NetBSD: linux32_unistd.c,v 1.7 2007/03/18 21:38:33 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, 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 Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_unistd.c,v 1.7 2007/03/18 21:38:33 dsl Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kernel.h> 44 #include <sys/fcntl.h> 45 #include <sys/select.h> 46 #include <sys/proc.h> 47 #include <sys/ucred.h> 48 #include <sys/swap.h> 49 50 #include <machine/types.h> 51 52 #include <sys/syscallargs.h> 53 54 #include <compat/netbsd32/netbsd32.h> 55 #include <compat/netbsd32/netbsd32_conv.h> 56 #include <compat/netbsd32/netbsd32_syscallargs.h> 57 58 #include <compat/linux/common/linux_types.h> 59 #include <compat/linux/common/linux_signal.h> 60 #include <compat/linux/common/linux_machdep.h> 61 #include <compat/linux/common/linux_misc.h> 62 #include <compat/linux/common/linux_oldolduname.h> 63 #include <compat/linux/linux_syscallargs.h> 64 65 #include <compat/linux32/common/linux32_types.h> 66 #include <compat/linux32/common/linux32_signal.h> 67 #include <compat/linux32/common/linux32_machdep.h> 68 #include <compat/linux32/common/linux32_sysctl.h> 69 #include <compat/linux32/common/linux32_socketcall.h> 70 #include <compat/linux32/linux32_syscallargs.h> 71 72 static int linux32_select1(struct lwp *, register_t *, 73 int, fd_set *, fd_set *, fd_set *, struct timeval *); 74 75 int 76 linux32_sys_brk(l, v, retval) 77 struct lwp *l; 78 void *v; 79 register_t *retval; 80 { 81 struct linux32_sys_brk_args /* { 82 syscallarg(netbsd32_charp) nsize; 83 } */ *uap = v; 84 struct linux_sys_brk_args ua; 85 86 NETBSD32TOP_UAP(nsize, char); 87 return linux_sys_brk(l, &ua, retval); 88 } 89 90 int 91 linux32_sys_access(l, v, retval) 92 struct lwp *l; 93 void *v; 94 register_t *retval; 95 { 96 struct linux32_sys_access_args /* { 97 syscallarg(const netbsd32_charp) path; 98 syscallarg(int) flags; 99 } */ *uap = v; 100 struct sys_access_args ua; 101 void *sg; 102 103 NETBSD32TOP_UAP(path, const char); 104 NETBSD32TO64_UAP(flags); 105 106 sg = stackgap_init(l->l_proc, 0); 107 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 108 109 return sys_access(l, &ua, retval); 110 } 111 112 int 113 linux32_sys_llseek(l, v, retval) 114 struct lwp *l; 115 void *v; 116 register_t *retval; 117 { 118 struct linux32_sys_llseek_args /* { 119 syscallcarg(int) fd; 120 syscallarg(u_int32_t) ohigh; 121 syscallarg(u_int32_t) olow; 122 syscallarg(netbsd32_void *) res; 123 syscallcarg(int) whence; 124 } */ *uap = v; 125 struct linux_sys_llseek_args ua; 126 127 NETBSD32TO64_UAP(fd); 128 NETBSD32TO64_UAP(ohigh); 129 NETBSD32TO64_UAP(olow); 130 NETBSD32TOP_UAP(res, char); 131 NETBSD32TO64_UAP(whence); 132 133 return linux_sys_llseek(l, &ua, retval); 134 } 135 136 int 137 linux32_sys_readlink(l, v, retval) 138 struct lwp *l; 139 void *v; 140 register_t *retval; 141 { 142 struct linux32_sys_readlink_args /* { 143 syscallarg(const netbsd32_charp) name; 144 syscallarg(netbsd32_charp) buf; 145 syscallarg(int) count; 146 } */ *uap = v; 147 struct linux_sys_readlink_args ua; 148 149 NETBSD32TOP_UAP(name, const char); 150 NETBSD32TOP_UAP(buf, char) 151 NETBSD32TO64_UAP(count); 152 153 return linux_sys_readlink(l, &ua, retval); 154 } 155 156 157 int 158 linux32_sys_select(l, v, retval) 159 struct lwp *l; 160 void *v; 161 register_t *retval; 162 { 163 struct linux32_sys_select_args /* { 164 syscallarg(int) nfds; 165 syscallarg(netbsd32_fd_setp_t) readfds; 166 syscallarg(netbsd32_fd_setp_t) writefds; 167 syscallarg(netbsd32_fd_setp_t) exceptfds; 168 syscallarg(netbsd32_timevalp_t) timeout; 169 } */ *uap = v; 170 171 return linux32_select1(l, retval, SCARG(uap, nfds), 172 SCARG_P32(uap, readfds), 173 SCARG_P32(uap, writefds), 174 SCARG_P32(uap, exceptfds), 175 SCARG_P32(uap, timeout)); 176 } 177 178 int 179 linux32_sys_oldselect(l, v, retval) 180 struct lwp *l; 181 void *v; 182 register_t *retval; 183 { 184 struct linux32_sys_oldselect_args /* { 185 syscallarg(linux32_oldselectp_t) lsp; 186 } */ *uap = v; 187 struct linux32_oldselect lsp32; 188 int error; 189 190 if ((error = copyin(SCARG_P32(uap, lsp), &lsp32, sizeof(lsp32))) != 0) 191 return error; 192 193 return linux32_select1(l, retval, lsp32.nfds, 194 NETBSD32PTR64(lsp32.readfds), NETBSD32PTR64(lsp32.writefds), 195 NETBSD32PTR64(lsp32.exceptfds), NETBSD32PTR64(lsp32.timeout)); 196 } 197 198 static int 199 linux32_select1(l, retval, nfds, readfds, writefds, exceptfds, timeout) 200 struct lwp *l; 201 register_t *retval; 202 int nfds; 203 fd_set *readfds, *writefds, *exceptfds; 204 struct timeval *timeout; 205 { 206 struct timeval tv0, tv1, utv, otv; 207 struct netbsd32_timeval utv32; 208 int error; 209 210 timerclear(&otv); /* XXX GCC4 */ 211 212 /* 213 * Store current time for computation of the amount of 214 * time left. 215 */ 216 if (timeout) { 217 if ((error = copyin(timeout, &utv32, sizeof(utv32)))) 218 return error; 219 220 netbsd32_to_timeval(&utv32, &utv); 221 otv = utv; 222 223 if (itimerfix(&utv)) { 224 /* 225 * The timeval was invalid. Convert it to something 226 * valid that will act as it does under Linux. 227 */ 228 utv.tv_sec += utv.tv_usec / 1000000; 229 utv.tv_usec %= 1000000; 230 if (utv.tv_usec < 0) { 231 utv.tv_sec -= 1; 232 utv.tv_usec += 1000000; 233 } 234 if (utv.tv_sec < 0) 235 timerclear(&utv); 236 } 237 microtime(&tv0); 238 } else { 239 timerclear(&utv); 240 } 241 242 error = selcommon(l, retval, nfds, 243 readfds, writefds, exceptfds, &utv, NULL); 244 245 if (error) { 246 /* 247 * See fs/select.c in the Linux kernel. Without this, 248 * Maelstrom doesn't work. 249 */ 250 if (error == ERESTART) 251 error = EINTR; 252 return error; 253 } 254 255 if (timeout) { 256 if (*retval) { 257 /* 258 * Compute how much time was left of the timeout, 259 * by subtracting the current time and the time 260 * before we started the call, and subtracting 261 * that result from the user-supplied value. 262 */ 263 microtime(&tv1); 264 timersub(&tv1, &tv0, &tv1); 265 timersub(&otv, &tv1, &utv); 266 if (utv.tv_sec < 0) 267 timerclear(&utv); 268 } else { 269 timerclear(&utv); 270 } 271 272 netbsd32_from_timeval(&utv, &utv32); 273 274 if ((error = copyout(&utv32, timeout, sizeof(utv32)))) 275 return error; 276 } 277 278 return 0; 279 } 280 281 int 282 linux32_sys_pipe(l, v, retval) 283 struct lwp *l; 284 void *v; 285 register_t *retval; 286 { 287 struct linux32_sys_pipe_args /* { 288 syscallarg(netbsd32_intp) fd; 289 } */ *uap = v; 290 int error; 291 int pfds[2]; 292 293 if ((error = sys_pipe(l, 0, retval))) 294 return error; 295 296 pfds[0] = (int)retval[0]; 297 pfds[1] = (int)retval[1]; 298 299 if ((error = copyout(pfds, SCARG_P32(uap, fd), 2 * sizeof (int))) != 0) 300 return error; 301 302 retval[0] = 0; 303 retval[1] = 0; 304 305 return 0; 306 } 307 308 309 int 310 linux32_sys_unlink(l, v, retval) 311 struct lwp *l; 312 void *v; 313 register_t *retval; 314 { 315 struct linux32_sys_unlink_args /* { 316 syscallarg(const netbsd32_charp) path; 317 } */ *uap = v; 318 struct linux_sys_unlink_args ua; 319 320 NETBSD32TOP_UAP(path, const char); 321 322 return linux_sys_unlink(l, &ua, retval); 323 } 324 325 int 326 linux32_sys_chdir(l, v, retval) 327 struct lwp *l; 328 void *v; 329 register_t *retval; 330 { 331 struct linux32_sys_chdir_args /* { 332 syscallarg(const netbsd32_charp) path; 333 } */ *uap = v; 334 struct sys_chdir_args ua; 335 void *sg = stackgap_init(l->l_proc, 0); 336 337 NETBSD32TOP_UAP(path, const char); 338 339 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 340 341 return sys_chdir(l, &ua, retval); 342 } 343 344 int 345 linux32_sys_link(l, v, retval) 346 struct lwp *l; 347 void *v; 348 register_t *retval; 349 { 350 struct linux32_sys_link_args /* { 351 syscallarg(const netbsd32_charp) path; 352 syscallarg(const netbsd32_charp) link; 353 } */ *uap = v; 354 struct sys_link_args ua; 355 void *sg = stackgap_init(l->l_proc, 0); 356 357 NETBSD32TOP_UAP(path, const char); 358 NETBSD32TOP_UAP(link, const char); 359 360 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 361 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, link)); 362 363 return sys_link(l, &ua, retval); 364 } 365 366 int 367 linux32_sys_creat(l, v, retval) 368 struct lwp *l; 369 void *v; 370 register_t *retval; 371 { 372 struct linux32_sys_creat_args /* { 373 syscallarg(const netbsd32_charp) path; 374 syscallarg(int) mode; 375 } */ *uap = v; 376 struct sys_open_args ua; 377 void *sg = stackgap_init(l->l_proc, 0); 378 379 NETBSD32TOP_UAP(path, const char); 380 SCARG(&ua, flags) = O_CREAT | O_TRUNC | O_WRONLY; 381 NETBSD32TO64_UAP(mode); 382 383 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 384 385 return sys_open(l, &ua, retval); 386 } 387 388 int 389 linux32_sys_mknod(l, v, retval) 390 struct lwp *l; 391 void *v; 392 register_t *retval; 393 { 394 struct linux32_sys_mknod_args /* { 395 syscallarg(const netbsd32_charp) path; 396 syscallarg(int) mode; 397 syscallarg(int) dev; 398 } */ *uap = v; 399 struct linux_sys_mknod_args ua; 400 401 NETBSD32TOP_UAP(path, const char); 402 NETBSD32TO64_UAP(mode); 403 NETBSD32TO64_UAP(dev); 404 405 return linux_sys_mknod(l, &ua, retval); 406 } 407 408 int 409 linux32_sys_chmod(l, v, retval) 410 struct lwp *l; 411 void *v; 412 register_t *retval; 413 { 414 struct linux32_sys_chmod_args /* { 415 syscallarg(const netbsd32_charp) path; 416 syscallarg(int) mode; 417 } */ *uap = v; 418 struct sys_chmod_args ua; 419 void *sg = stackgap_init(l->l_proc, 0); 420 421 NETBSD32TOP_UAP(path, const char); 422 NETBSD32TO64_UAP(mode); 423 424 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 425 426 return sys_chmod(l, &ua, retval); 427 } 428 429 int 430 linux32_sys_lchown16(l, v, retval) 431 struct lwp *l; 432 void *v; 433 register_t *retval; 434 { 435 struct linux32_sys_lchown16_args /* { 436 syscallarg(const netbsd32_charp) path; 437 syscallarg(int) uid; 438 syscallarg(int) gid; 439 } */ *uap = v; 440 struct sys___posix_lchown_args ua; 441 void *sg = stackgap_init(l->l_proc, 0); 442 443 NETBSD32TOP_UAP(path, const char); 444 CHECK_ALT_SYMLINK(l, &sg, SCARG(&ua, path)); 445 446 if ((linux32_uid_t)SCARG(uap, uid) == (linux32_uid_t)-1) 447 SCARG(&ua, uid) = (uid_t)-1; 448 else 449 SCARG(&ua, uid) = SCARG(uap, uid); 450 451 if ((linux32_gid_t)SCARG(uap, gid) == (linux32_gid_t)-1) 452 SCARG(&ua, gid) = (gid_t)-1; 453 else 454 SCARG(&ua, gid) = SCARG(uap, gid); 455 456 return sys___posix_lchown(l, &ua, retval); 457 } 458 459 int 460 linux32_sys_break(l, v, retval) 461 struct lwp *l; 462 void *v; 463 register_t *retval; 464 { 465 #if 0 466 struct linux32_sys_break_args /* { 467 syscallarg(const netbsd32_charp) nsize; 468 } */ *uap = v; 469 #endif 470 471 return ENOSYS; 472 } 473 474 int 475 linux32_sys_rename(l, v, retval) 476 struct lwp *l; 477 void *v; 478 register_t *retval; 479 { 480 struct linux32_sys_rename_args /* { 481 syscallarg(const netbsd32_charp) from; 482 syscallarg(const netbsd32_charp) to; 483 } */ *uap = v; 484 struct sys_rename_args ua; 485 void *sg = stackgap_init(l->l_proc, 0); 486 487 NETBSD32TOP_UAP(from, const char); 488 NETBSD32TOP_UAP(to, const char); 489 490 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, from)); 491 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, to)); 492 493 return sys___posix_rename(l, &ua, retval); 494 } 495 496 int 497 linux32_sys_mkdir(l, v, retval) 498 struct lwp *l; 499 void *v; 500 register_t *retval; 501 { 502 struct linux32_sys_mkdir_args /* { 503 syscallarg(const netbsd32_charp) path; 504 syscallarg(int) mode; 505 } */ *uap = v; 506 struct sys_mkdir_args ua; 507 void *sg = stackgap_init(l->l_proc, 0); 508 509 NETBSD32TOP_UAP(path, const char); 510 NETBSD32TO64_UAP(mode); 511 512 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, path)); 513 514 return sys_mkdir(l, &ua, retval); 515 } 516 517 int 518 linux32_sys_rmdir(l, v, retval) 519 struct lwp *l; 520 void *v; 521 register_t *retval; 522 { 523 struct linux32_sys_rmdir_args /* { 524 syscallarg(const netbsd32_charp) path; 525 } */ *uap = v; 526 struct sys_rmdir_args ua; 527 void *sg = stackgap_init(l->l_proc, 0); 528 529 NETBSD32TOP_UAP(path, const char); 530 531 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 532 533 return sys_rmdir(l, &ua, retval); 534 } 535 536 int 537 linux32_sys_getgroups16(l, v, retval) 538 struct lwp *l; 539 void *v; 540 register_t *retval; 541 { 542 struct linux32_sys_getgroups16_args /* { 543 syscallarg(int) gidsetsize; 544 syscallarg(linux32_gidp_t) gidset; 545 } */ *uap = v; 546 struct linux_sys_getgroups16_args ua; 547 548 NETBSD32TO64_UAP(gidsetsize); 549 NETBSD32TOP_UAP(gidset, linux_gid_t); 550 551 return linux_sys_getgroups16(l, &ua, retval); 552 } 553 554 int 555 linux32_sys_setgroups16(l, v, retval) 556 struct lwp *l; 557 void *v; 558 register_t *retval; 559 { 560 struct linux32_sys_setgroups16_args /* { 561 syscallarg(int) gidsetsize; 562 syscallarg(linux32_gidp_t) gidset; 563 } */ *uap = v; 564 struct linux_sys_setgroups16_args ua; 565 566 NETBSD32TO64_UAP(gidsetsize); 567 NETBSD32TOP_UAP(gidset, linux_gid_t); 568 569 return linux_sys_setgroups16(l, &ua, retval); 570 } 571 572 int 573 linux32_sys_symlink(l, v, retval) 574 struct lwp *l; 575 void *v; 576 register_t *retval; 577 { 578 struct linux32_sys_symlink_args /* { 579 syscallarg(const netbsd32_charp) path; 580 syscallarg(const netbsd32_charp) link; 581 } */ *uap = v; 582 struct sys_symlink_args ua; 583 void *sg = stackgap_init(l->l_proc, 0); 584 585 NETBSD32TOP_UAP(path, const char); 586 NETBSD32TOP_UAP(link, const char); 587 588 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 589 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, link)); 590 591 return sys_symlink(l, &ua, retval); 592 } 593 594 595 int 596 linux32_sys_swapon(l, v, retval) 597 struct lwp *l; 598 void *v; 599 register_t *retval; 600 { 601 struct linux32_sys_swapon_args /* { 602 syscallarg(const netbsd32_charp) name; 603 } */ *uap = v; 604 struct sys_swapctl_args ua; 605 606 SCARG(&ua, cmd) = SWAP_ON; 607 SCARG(&ua, arg) = SCARG_P32(uap, name); 608 SCARG(&ua, misc) = 0; /* priority */ 609 return (sys_swapctl(l, &ua, retval)); 610 } 611 612 int 613 linux32_sys_swapoff(l, v, retval) 614 struct lwp *l; 615 void *v; 616 register_t *retval; 617 { 618 struct linux32_sys_swapoff_args /* { 619 syscallarg(const netbsd32_charp) path; 620 } */ *uap = v; 621 struct sys_swapctl_args ua; 622 623 SCARG(&ua, cmd) = SWAP_OFF; 624 SCARG(&ua, arg) = SCARG_P32(uap, path); 625 SCARG(&ua, misc) = 0; /* priority */ 626 return (sys_swapctl(l, &ua, retval)); 627 } 628 629 630 int 631 linux32_sys_reboot(l, v, retval) 632 struct lwp *l; 633 void *v; 634 register_t *retval; 635 { 636 struct linux32_sys_reboot_args /* { 637 syscallarg(int) magic1; 638 syscallarg(int) magic2; 639 syscallarg(int) cmd; 640 syscallarg(netbsd32_voidp) arg; 641 } */ *uap = v; 642 struct linux_sys_reboot_args ua; 643 644 NETBSD32TO64_UAP(magic1); 645 NETBSD32TO64_UAP(magic2); 646 NETBSD32TO64_UAP(cmd); 647 NETBSD32TOP_UAP(arg, void); 648 649 return linux_sys_reboot(l, &ua, retval); 650 } 651 652 int 653 linux32_sys_truncate(l, v, retval) 654 struct lwp *l; 655 void *v; 656 register_t *retval; 657 { 658 struct linux32_sys_truncate_args /* { 659 syscallarg(const netbsd32_charp) path; 660 syscallarg(netbsd32_charp) buf; 661 syscallarg(int) count; 662 } */ *uap = v; 663 struct compat_43_sys_truncate_args ua; 664 665 NETBSD32TOP_UAP(path, const char); 666 NETBSD32TO64_UAP(length); 667 668 return compat_43_sys_truncate(l, &ua, retval); 669 } 670 671 int 672 linux32_sys_fchown16(l, v, retval) 673 struct lwp *l; 674 void *v; 675 register_t *retval; 676 { 677 struct linux32_sys_fchown16_args /* { 678 syscallarg(int) fd; 679 syscallarg(int) uid; 680 syscallarg(int) gid; 681 } */ *uap = v; 682 struct sys___posix_fchown_args ua; 683 684 SCARG(&ua, fd) = SCARG(uap, fd); 685 686 if ((linux32_uid_t)SCARG(uap, uid) == (linux32_uid_t)-1) 687 SCARG(&ua, uid) = (uid_t)-1; 688 else 689 SCARG(&ua, uid) = SCARG(uap, uid); 690 691 if ((linux32_gid_t)SCARG(uap, gid) == (linux32_gid_t)-1) 692 SCARG(&ua, gid) = (gid_t)-1; 693 else 694 SCARG(&ua, gid) = SCARG(uap, gid); 695 696 return sys___posix_fchown(l, &ua, retval); 697 } 698 699 int 700 linux32_sys_setresuid(l, v, retval) 701 struct lwp *l; 702 void *v; 703 register_t *retval; 704 { 705 struct linux32_sys_setresuid_args /* { 706 syscallarg(uid_t) ruid; 707 syscallarg(uid_t) euid; 708 syscallarg(uid_t) suid; 709 } */ *uap = v; 710 struct linux_sys_setresuid_args ua; 711 712 SCARG(&ua, ruid) = (SCARG(uap, ruid) == -1) ? -1 : SCARG(uap, ruid); 713 SCARG(&ua, euid) = (SCARG(uap, euid) == -1) ? -1 : SCARG(uap, euid); 714 SCARG(&ua, suid) = (SCARG(uap, suid) == -1) ? -1 : SCARG(uap, suid); 715 716 return linux_sys_setresuid(l, &ua, retval); 717 } 718 719 int 720 linux32_sys_setresgid(l, v, retval) 721 struct lwp *l; 722 void *v; 723 register_t *retval; 724 { 725 struct linux32_sys_setresgid_args /* { 726 syscallarg(gid_t) rgid; 727 syscallarg(gid_t) egid; 728 syscallarg(gid_t) sgid; 729 } */ *uap = v; 730 struct linux_sys_setresgid_args ua; 731 732 SCARG(&ua, rgid) = (SCARG(uap, rgid) == -1) ? -1 : SCARG(uap, rgid); 733 SCARG(&ua, egid) = (SCARG(uap, egid) == -1) ? -1 : SCARG(uap, egid); 734 SCARG(&ua, sgid) = (SCARG(uap, sgid) == -1) ? -1 : SCARG(uap, sgid); 735 736 return linux_sys_setresgid(l, &ua, retval); 737 } 738
Indexes created Tue Sep 23 07:09:52 GMT 2025