linux32_unistd.c revision 1.6
1 /* $NetBSD: linux32_unistd.c,v 1.6 2007/03/04 06:01:25 christos 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 1.6 2007/03/04 06:01:25 christos 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 NETBSD32PTR64(SCARG(uap, readfds)), 173 NETBSD32PTR64(SCARG(uap, writefds)), 174 NETBSD32PTR64(SCARG(uap, exceptfds)), 175 NETBSD32PTR64(SCARG(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(NETBSD32PTR64(SCARG(uap, lsp)), 191 &lsp32, sizeof(lsp32))) != 0) 192 return error; 193 194 return linux32_select1(l, retval, lsp32.nfds, 195 NETBSD32PTR64(lsp32.readfds), NETBSD32PTR64(lsp32.writefds), 196 NETBSD32PTR64(lsp32.exceptfds), NETBSD32PTR64(lsp32.timeout)); 197 } 198 199 static int 200 linux32_select1(l, retval, nfds, readfds, writefds, exceptfds, timeout) 201 struct lwp *l; 202 register_t *retval; 203 int nfds; 204 fd_set *readfds, *writefds, *exceptfds; 205 struct timeval *timeout; 206 { 207 struct timeval tv0, tv1, utv, otv; 208 struct netbsd32_timeval utv32; 209 int error; 210 211 timerclear(&otv); /* XXX GCC4 */ 212 213 /* 214 * Store current time for computation of the amount of 215 * time left. 216 */ 217 if (timeout) { 218 if ((error = copyin(timeout, &utv32, sizeof(utv32)))) 219 return error; 220 221 netbsd32_to_timeval(&utv32, &utv); 222 otv = utv; 223 224 if (itimerfix(&utv)) { 225 /* 226 * The timeval was invalid. Convert it to something 227 * valid that will act as it does under Linux. 228 */ 229 utv.tv_sec += utv.tv_usec / 1000000; 230 utv.tv_usec %= 1000000; 231 if (utv.tv_usec < 0) { 232 utv.tv_sec -= 1; 233 utv.tv_usec += 1000000; 234 } 235 if (utv.tv_sec < 0) 236 timerclear(&utv); 237 } 238 microtime(&tv0); 239 } else { 240 timerclear(&utv); 241 } 242 243 error = selcommon(l, retval, nfds, 244 readfds, writefds, exceptfds, &utv, NULL); 245 246 if (error) { 247 /* 248 * See fs/select.c in the Linux kernel. Without this, 249 * Maelstrom doesn't work. 250 */ 251 if (error == ERESTART) 252 error = EINTR; 253 return error; 254 } 255 256 if (timeout) { 257 if (*retval) { 258 /* 259 * Compute how much time was left of the timeout, 260 * by subtracting the current time and the time 261 * before we started the call, and subtracting 262 * that result from the user-supplied value. 263 */ 264 microtime(&tv1); 265 timersub(&tv1, &tv0, &tv1); 266 timersub(&otv, &tv1, &utv); 267 if (utv.tv_sec < 0) 268 timerclear(&utv); 269 } else { 270 timerclear(&utv); 271 } 272 273 netbsd32_from_timeval(&utv, &utv32); 274 275 if ((error = copyout(&utv32, timeout, sizeof(utv32)))) 276 return error; 277 } 278 279 return 0; 280 } 281 282 int 283 linux32_sys_pipe(l, v, retval) 284 struct lwp *l; 285 void *v; 286 register_t *retval; 287 { 288 struct linux32_sys_pipe_args /* { 289 syscallarg(netbsd32_intp) fd; 290 } */ *uap = v; 291 int error; 292 int pfds[2]; 293 294 if ((error = sys_pipe(l, 0, retval))) 295 return error; 296 297 pfds[0] = (int)retval[0]; 298 pfds[1] = (int)retval[1]; 299 300 if ((error = copyout(pfds, NETBSD32PTR64(SCARG(uap, fd)), 301 2 * sizeof (int))) != 0) 302 return error; 303 304 retval[0] = 0; 305 retval[1] = 0; 306 307 return 0; 308 } 309 310 311 int 312 linux32_sys_unlink(l, v, retval) 313 struct lwp *l; 314 void *v; 315 register_t *retval; 316 { 317 struct linux32_sys_unlink_args /* { 318 syscallarg(const netbsd32_charp) path; 319 } */ *uap = v; 320 struct linux_sys_unlink_args ua; 321 322 NETBSD32TOP_UAP(path, const char); 323 324 return linux_sys_unlink(l, &ua, retval); 325 } 326 327 int 328 linux32_sys_chdir(l, v, retval) 329 struct lwp *l; 330 void *v; 331 register_t *retval; 332 { 333 struct linux32_sys_chdir_args /* { 334 syscallarg(const netbsd32_charp) path; 335 } */ *uap = v; 336 struct sys_chdir_args ua; 337 void *sg = stackgap_init(l->l_proc, 0); 338 339 NETBSD32TOP_UAP(path, const char); 340 341 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 342 343 return sys_chdir(l, &ua, retval); 344 } 345 346 int 347 linux32_sys_link(l, v, retval) 348 struct lwp *l; 349 void *v; 350 register_t *retval; 351 { 352 struct linux32_sys_link_args /* { 353 syscallarg(const netbsd32_charp) path; 354 syscallarg(const netbsd32_charp) link; 355 } */ *uap = v; 356 struct sys_link_args ua; 357 void *sg = stackgap_init(l->l_proc, 0); 358 359 NETBSD32TOP_UAP(path, const char); 360 NETBSD32TOP_UAP(link, const char); 361 362 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 363 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, link)); 364 365 return sys_link(l, &ua, retval); 366 } 367 368 int 369 linux32_sys_creat(l, v, retval) 370 struct lwp *l; 371 void *v; 372 register_t *retval; 373 { 374 struct linux32_sys_creat_args /* { 375 syscallarg(const netbsd32_charp) path; 376 syscallarg(int) mode; 377 } */ *uap = v; 378 struct sys_open_args ua; 379 void *sg = stackgap_init(l->l_proc, 0); 380 381 NETBSD32TOP_UAP(path, const char); 382 SCARG(&ua, flags) = O_CREAT | O_TRUNC | O_WRONLY; 383 NETBSD32TO64_UAP(mode); 384 385 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 386 387 return sys_open(l, &ua, retval); 388 } 389 390 int 391 linux32_sys_mknod(l, v, retval) 392 struct lwp *l; 393 void *v; 394 register_t *retval; 395 { 396 struct linux32_sys_mknod_args /* { 397 syscallarg(const netbsd32_charp) path; 398 syscallarg(int) mode; 399 syscallarg(int) dev; 400 } */ *uap = v; 401 struct linux_sys_mknod_args ua; 402 403 NETBSD32TOP_UAP(path, const char); 404 NETBSD32TO64_UAP(mode); 405 NETBSD32TO64_UAP(dev); 406 407 return linux_sys_mknod(l, &ua, retval); 408 } 409 410 int 411 linux32_sys_chmod(l, v, retval) 412 struct lwp *l; 413 void *v; 414 register_t *retval; 415 { 416 struct linux32_sys_chmod_args /* { 417 syscallarg(const netbsd32_charp) path; 418 syscallarg(int) mode; 419 } */ *uap = v; 420 struct sys_chmod_args ua; 421 void *sg = stackgap_init(l->l_proc, 0); 422 423 NETBSD32TOP_UAP(path, const char); 424 NETBSD32TO64_UAP(mode); 425 426 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 427 428 return sys_chmod(l, &ua, retval); 429 } 430 431 int 432 linux32_sys_lchown16(l, v, retval) 433 struct lwp *l; 434 void *v; 435 register_t *retval; 436 { 437 struct linux32_sys_lchown16_args /* { 438 syscallarg(const netbsd32_charp) path; 439 syscallarg(int) uid; 440 syscallarg(int) gid; 441 } */ *uap = v; 442 struct sys___posix_lchown_args ua; 443 void *sg = stackgap_init(l->l_proc, 0); 444 445 NETBSD32TOP_UAP(path, const char); 446 CHECK_ALT_SYMLINK(l, &sg, SCARG(&ua, path)); 447 448 if ((linux32_uid_t)SCARG(uap, uid) == (linux32_uid_t)-1) 449 SCARG(&ua, uid) = (uid_t)-1; 450 else 451 SCARG(&ua, uid) = SCARG(uap, uid); 452 453 if ((linux32_gid_t)SCARG(uap, gid) == (linux32_gid_t)-1) 454 SCARG(&ua, gid) = (gid_t)-1; 455 else 456 SCARG(&ua, gid) = SCARG(uap, gid); 457 458 return sys___posix_lchown(l, &ua, retval); 459 } 460 461 int 462 linux32_sys_break(l, v, retval) 463 struct lwp *l; 464 void *v; 465 register_t *retval; 466 { 467 #if 0 468 struct linux32_sys_break_args /* { 469 syscallarg(const netbsd32_charp) nsize; 470 } */ *uap = v; 471 #endif 472 473 return ENOSYS; 474 } 475 476 int 477 linux32_sys_rename(l, v, retval) 478 struct lwp *l; 479 void *v; 480 register_t *retval; 481 { 482 struct linux32_sys_rename_args /* { 483 syscallarg(const netbsd32_charp) from; 484 syscallarg(const netbsd32_charp) to; 485 } */ *uap = v; 486 struct sys_rename_args ua; 487 void *sg = stackgap_init(l->l_proc, 0); 488 489 NETBSD32TOP_UAP(from, const char); 490 NETBSD32TOP_UAP(to, const char); 491 492 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, from)); 493 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, to)); 494 495 return sys___posix_rename(l, &ua, retval); 496 } 497 498 int 499 linux32_sys_mkdir(l, v, retval) 500 struct lwp *l; 501 void *v; 502 register_t *retval; 503 { 504 struct linux32_sys_mkdir_args /* { 505 syscallarg(const netbsd32_charp) path; 506 syscallarg(int) mode; 507 } */ *uap = v; 508 struct sys_mkdir_args ua; 509 void *sg = stackgap_init(l->l_proc, 0); 510 511 NETBSD32TOP_UAP(path, const char); 512 NETBSD32TO64_UAP(mode); 513 514 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, path)); 515 516 return sys_mkdir(l, &ua, retval); 517 } 518 519 int 520 linux32_sys_rmdir(l, v, retval) 521 struct lwp *l; 522 void *v; 523 register_t *retval; 524 { 525 struct linux32_sys_rmdir_args /* { 526 syscallarg(const netbsd32_charp) path; 527 } */ *uap = v; 528 struct sys_rmdir_args ua; 529 void *sg = stackgap_init(l->l_proc, 0); 530 531 NETBSD32TOP_UAP(path, const char); 532 533 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 534 535 return sys_rmdir(l, &ua, retval); 536 } 537 538 int 539 linux32_sys_getgroups16(l, v, retval) 540 struct lwp *l; 541 void *v; 542 register_t *retval; 543 { 544 struct linux32_sys_getgroups16_args /* { 545 syscallarg(int) gidsetsize; 546 syscallarg(linux32_gidp_t) gidset; 547 } */ *uap = v; 548 struct linux_sys_getgroups16_args ua; 549 550 NETBSD32TO64_UAP(gidsetsize); 551 NETBSD32TOP_UAP(gidset, linux_gid_t); 552 553 return linux_sys_getgroups16(l, &ua, retval); 554 } 555 556 int 557 linux32_sys_setgroups16(l, v, retval) 558 struct lwp *l; 559 void *v; 560 register_t *retval; 561 { 562 struct linux32_sys_setgroups16_args /* { 563 syscallarg(int) gidsetsize; 564 syscallarg(linux32_gidp_t) gidset; 565 } */ *uap = v; 566 struct linux_sys_setgroups16_args ua; 567 568 NETBSD32TO64_UAP(gidsetsize); 569 NETBSD32TOP_UAP(gidset, linux_gid_t); 570 571 return linux_sys_setgroups16(l, &ua, retval); 572 } 573 574 int 575 linux32_sys_symlink(l, v, retval) 576 struct lwp *l; 577 void *v; 578 register_t *retval; 579 { 580 struct linux32_sys_symlink_args /* { 581 syscallarg(const netbsd32_charp) path; 582 syscallarg(const netbsd32_charp) link; 583 } */ *uap = v; 584 struct sys_symlink_args ua; 585 void *sg = stackgap_init(l->l_proc, 0); 586 587 NETBSD32TOP_UAP(path, const char); 588 NETBSD32TOP_UAP(link, const char); 589 590 CHECK_ALT_EXIST(l, &sg, SCARG(&ua, path)); 591 CHECK_ALT_CREAT(l, &sg, SCARG(&ua, link)); 592 593 return sys_symlink(l, &ua, retval); 594 } 595 596 597 int 598 linux32_sys_swapon(l, v, retval) 599 struct lwp *l; 600 void *v; 601 register_t *retval; 602 { 603 struct linux32_sys_swapon_args /* { 604 syscallarg(const netbsd32_charp) name; 605 } */ *uap = v; 606 struct sys_swapctl_args ua; 607 608 SCARG(&ua, cmd) = SWAP_ON; 609 SCARG(&ua, arg) = (void *)__UNCONST(NETBSD32PTR64(SCARG(uap, name))); 610 SCARG(&ua, misc) = 0; /* priority */ 611 return (sys_swapctl(l, &ua, retval)); 612 } 613 614 int 615 linux32_sys_swapoff(l, v, retval) 616 struct lwp *l; 617 void *v; 618 register_t *retval; 619 { 620 struct linux32_sys_swapoff_args /* { 621 syscallarg(const netbsd32_charp) path; 622 } */ *uap = v; 623 struct sys_swapctl_args ua; 624 625 SCARG(&ua, cmd) = SWAP_OFF; 626 SCARG(&ua, arg) = (void *)__UNCONST(NETBSD32PTR64(SCARG(uap, path))); 627 SCARG(&ua, misc) = 0; /* priority */ 628 return (sys_swapctl(l, &ua, retval)); 629 } 630 631 632 int 633 linux32_sys_reboot(l, v, retval) 634 struct lwp *l; 635 void *v; 636 register_t *retval; 637 { 638 struct linux32_sys_reboot_args /* { 639 syscallarg(int) magic1; 640 syscallarg(int) magic2; 641 syscallarg(int) cmd; 642 syscallarg(netbsd32_voidp) arg; 643 } */ *uap = v; 644 struct linux_sys_reboot_args ua; 645 646 NETBSD32TO64_UAP(magic1); 647 NETBSD32TO64_UAP(magic2); 648 NETBSD32TO64_UAP(cmd); 649 NETBSD32TOP_UAP(arg, void); 650 651 return linux_sys_reboot(l, &ua, retval); 652 } 653 654 int 655 linux32_sys_truncate(l, v, retval) 656 struct lwp *l; 657 void *v; 658 register_t *retval; 659 { 660 struct linux32_sys_truncate_args /* { 661 syscallarg(const netbsd32_charp) path; 662 syscallarg(netbsd32_charp) buf; 663 syscallarg(int) count; 664 } */ *uap = v; 665 struct compat_43_sys_truncate_args ua; 666 667 NETBSD32TOP_UAP(path, const char); 668 NETBSD32TO64_UAP(length); 669 670 return compat_43_sys_truncate(l, &ua, retval); 671 } 672 673 int 674 linux32_sys_fchown16(l, v, retval) 675 struct lwp *l; 676 void *v; 677 register_t *retval; 678 { 679 struct linux32_sys_fchown16_args /* { 680 syscallarg(int) fd; 681 syscallarg(int) uid; 682 syscallarg(int) gid; 683 } */ *uap = v; 684 struct sys___posix_fchown_args ua; 685 686 SCARG(&ua, fd) = SCARG(uap, fd); 687 688 if ((linux32_uid_t)SCARG(uap, uid) == (linux32_uid_t)-1) 689 SCARG(&ua, uid) = (uid_t)-1; 690 else 691 SCARG(&ua, uid) = SCARG(uap, uid); 692 693 if ((linux32_gid_t)SCARG(uap, gid) == (linux32_gid_t)-1) 694 SCARG(&ua, gid) = (gid_t)-1; 695 else 696 SCARG(&ua, gid) = SCARG(uap, gid); 697 698 return sys___posix_fchown(l, &ua, retval); 699 } 700 701 int 702 linux32_sys_setresuid(l, v, retval) 703 struct lwp *l; 704 void *v; 705 register_t *retval; 706 { 707 struct linux32_sys_setresuid_args /* { 708 syscallarg(uid_t) ruid; 709 syscallarg(uid_t) euid; 710 syscallarg(uid_t) suid; 711 } */ *uap = v; 712 struct linux_sys_setresuid_args ua; 713 714 SCARG(&ua, ruid) = (SCARG(uap, ruid) == -1) ? -1 : SCARG(uap, ruid); 715 SCARG(&ua, euid) = (SCARG(uap, euid) == -1) ? -1 : SCARG(uap, euid); 716 SCARG(&ua, suid) = (SCARG(uap, suid) == -1) ? -1 : SCARG(uap, suid); 717 718 return linux_sys_setresuid(l, &ua, retval); 719 } 720 721 int 722 linux32_sys_setresgid(l, v, retval) 723 struct lwp *l; 724 void *v; 725 register_t *retval; 726 { 727 struct linux32_sys_setresgid_args /* { 728 syscallarg(gid_t) rgid; 729 syscallarg(gid_t) egid; 730 syscallarg(gid_t) sgid; 731 } */ *uap = v; 732 struct linux_sys_setresgid_args ua; 733 734 SCARG(&ua, rgid) = (SCARG(uap, rgid) == -1) ? -1 : SCARG(uap, rgid); 735 SCARG(&ua, egid) = (SCARG(uap, egid) == -1) ? -1 : SCARG(uap, egid); 736 SCARG(&ua, sgid) = (SCARG(uap, sgid) == -1) ? -1 : SCARG(uap, sgid); 737 738 return linux_sys_setresgid(l, &ua, retval); 739 } 740
Indexes created Wed Sep 24 05:09:52 GMT 2025