ultrix_misc.c revision 1.47
1 /* $NetBSD: ultrix_misc.c,v 1.47 1998/10/19 22:43:58 tron Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1997 Jonathan Stone (hereinafter referred to as the author) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jonathan Stone for 18 * the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1992, 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * This software was developed by the Computer Systems Engineering group 40 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 41 * contributed to Berkeley. 42 * 43 * All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by the University of 46 * California, Lawrence Berkeley Laboratory. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * 77 * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93 78 * 79 * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp 80 */ 81 82 #include "opt_nfsserver.h" 83 #include "opt_sysv.h" 84 85 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 86 87 __KERNEL_RCSID(0, "$NetBSD: ultrix_misc.c,v 1.47 1998/10/19 22:43:58 tron Exp $"); 88 89 /* 90 * SunOS compatibility module. 91 * 92 * SunOS system calls that are implemented differently in BSD are 93 * handled here. 94 */ 95 96 #include "fs_nfs.h" 97 98 #include <sys/param.h> 99 #include <sys/systm.h> 100 #include <sys/namei.h> 101 #include <sys/dirent.h> 102 #include <sys/proc.h> 103 #include <sys/file.h> 104 #include <sys/filedesc.h> 105 /*#include <sys/stat.h>*/ 106 /*#include <sys/ioctl.h>*/ 107 #include <sys/kernel.h> 108 #include <sys/exec.h> 109 #include <sys/malloc.h> 110 #include <sys/mbuf.h> 111 #include <sys/mman.h> 112 #include <sys/mount.h> 113 #include <sys/resource.h> 114 #include <sys/resourcevar.h> 115 #include <sys/signal.h> 116 #include <sys/signalvar.h> 117 #include <sys/socket.h> 118 #include <sys/vnode.h> 119 #include <sys/uio.h> 120 #include <sys/wait.h> 121 #include <sys/utsname.h> 122 #include <sys/unistd.h> 123 #include <sys/ipc.h> 124 125 #include <sys/syscallargs.h> 126 127 #include <compat/ultrix/ultrix_syscall.h> 128 #include <compat/ultrix/ultrix_syscallargs.h> 129 #include <compat/common/compat_util.h> 130 131 #include <netinet/in.h> 132 133 #include <miscfs/specfs/specdev.h> 134 135 #include <nfs/rpcv2.h> 136 #include <nfs/nfsproto.h> 137 #include <nfs/nfs.h> 138 139 #include <vm/vm.h> /* pmap declarations */ 140 141 #include <sys/conf.h> /* iszerodev() */ 142 #include <sys/socketvar.h> /* sosetopt() */ 143 144 145 extern struct sysent ultrix_sysent[]; 146 extern char *ultrix_syscallnames[]; 147 148 149 /* 150 * Select the appropriate setregs callback for the target architecture. 151 */ 152 #ifdef mips 153 #include <machine/ecoff_machdep.h> 154 #define ULTRIX_EXEC_SETREGS cpu_exec_ecoff_setregs 155 #endif /* mips */ 156 157 #ifdef vax 158 #define ULTRIX_EXEC_SETREGS setregs 159 #endif /* mips */ 160 161 162 extern void ULTRIX_EXEC_SETREGS __P((struct proc *, struct exec_package *, 163 u_long)); 164 extern char ultrix_sigcode[], ultrix_esigcode[]; 165 166 struct emul emul_ultrix = { 167 "ultrix", 168 NULL, 169 sendsig, 170 ULTRIX_SYS_syscall, 171 ULTRIX_SYS_MAXSYSCALL, 172 ultrix_sysent, 173 ultrix_syscallnames, 174 0, 175 copyargs, 176 ULTRIX_EXEC_SETREGS, 177 ultrix_sigcode, 178 ultrix_esigcode, 179 }; 180 181 #define GSI_PROG_ENV 1 182 183 int 184 ultrix_sys_getsysinfo(p, v, retval) 185 struct proc *p; 186 void *v; 187 register_t *retval; 188 { 189 struct ultrix_sys_getsysinfo_args *uap = v; 190 static short progenv = 0; 191 192 switch (SCARG(uap, op)) { 193 /* operations implemented: */ 194 case GSI_PROG_ENV: 195 if (SCARG(uap, nbytes) < sizeof(short)) 196 return EINVAL; 197 *retval = 1; 198 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 199 default: 200 *retval = 0; /* info unavail */ 201 return 0; 202 } 203 } 204 205 int 206 ultrix_sys_setsysinfo(p, v, retval) 207 struct proc *p; 208 void *v; 209 register_t *retval; 210 { 211 212 #ifdef notyet 213 struct ultrix_sys_setsysinfo_args *uap = v; 214 #endif 215 216 *retval = 0; 217 return 0; 218 } 219 220 int 221 ultrix_sys_waitpid(p, v, retval) 222 struct proc *p; 223 void *v; 224 register_t *retval; 225 { 226 struct ultrix_sys_waitpid_args *uap = v; 227 struct sys_wait4_args ua; 228 229 SCARG(&ua, pid) = SCARG(uap, pid); 230 SCARG(&ua, status) = SCARG(uap, status); 231 SCARG(&ua, options) = SCARG(uap, options); 232 SCARG(&ua, rusage) = 0; 233 234 return (sys_wait4(p, &ua, retval)); 235 } 236 237 int 238 ultrix_sys_wait3(p, v, retval) 239 struct proc *p; 240 void *v; 241 register_t *retval; 242 { 243 struct ultrix_sys_wait3_args *uap = v; 244 struct sys_wait4_args ua; 245 246 SCARG(&ua, pid) = -1; 247 SCARG(&ua, status) = SCARG(uap, status); 248 SCARG(&ua, options) = SCARG(uap, options); 249 SCARG(&ua, rusage) = SCARG(uap, rusage); 250 251 return (sys_wait4(p, &ua, retval)); 252 } 253 254 /* 255 * Ultrix binaries pass in FD_MAX as the first arg to select(). 256 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 257 * can handle. 258 * Since we can't have more than the (native) FD_MAX descriptors open, 259 * limit nfds to at most FD_MAX. 260 */ 261 int 262 ultrix_sys_select(p, v, retval) 263 struct proc *p; 264 void *v; 265 register_t *retval; 266 { 267 struct sys_select_args *uap = v; 268 struct timeval atv; 269 int error; 270 271 /* Limit number of FDs selected on to the native maximum */ 272 273 if (SCARG(uap, nd) > FD_SETSIZE) 274 SCARG(uap, nd) = FD_SETSIZE; 275 276 /* Check for negative timeval */ 277 if (SCARG(uap, tv)) { 278 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 279 sizeof(atv)); 280 if (error) 281 goto done; 282 #ifdef DEBUG 283 /* Ultrix clients sometimes give negative timeouts? */ 284 if (atv.tv_sec < 0 || atv.tv_usec < 0) 285 printf("ultrix select( %ld, %ld): negative timeout\n", 286 atv.tv_sec, atv.tv_usec); 287 /*tvp = (timeval *)STACKGAPBASE;*/ 288 #endif 289 290 } 291 error = sys_select(p, (void*) uap, retval); 292 if (error == EINVAL) 293 printf("ultrix select: bad args?\n"); 294 295 done: 296 return error; 297 } 298 299 #if defined(NFS) 300 int 301 async_daemon(p, v, retval) 302 struct proc *p; 303 void *v; 304 register_t *retval; 305 { 306 struct sys_nfssvc_args ouap; 307 308 SCARG(&ouap, flag) = NFSSVC_BIOD; 309 SCARG(&ouap, argp) = NULL; 310 311 return (sys_nfssvc(p, &ouap, retval)); 312 } 313 #endif /* NFS */ 314 315 316 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 317 318 int 319 ultrix_sys_mmap(p, v, retval) 320 register struct proc *p; 321 void *v; 322 register_t *retval; 323 { 324 register struct ultrix_sys_mmap_args *uap = v; 325 struct sys_mmap_args ouap; 326 register struct filedesc *fdp; 327 register struct file *fp; 328 register struct vnode *vp; 329 330 /* 331 * Verify the arguments. 332 */ 333 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 334 return (EINVAL); /* XXX still needed? */ 335 336 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 337 return (EINVAL); 338 339 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 340 SCARG(&ouap, addr) = SCARG(uap, addr); 341 342 if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && 343 SCARG(&ouap, addr) != 0 && 344 SCARG(&ouap, addr) < (void *)round_page(p->p_vmspace->vm_daddr+MAXDSIZ)) 345 SCARG(&ouap, addr) = (void *)round_page(p->p_vmspace->vm_daddr+MAXDSIZ); 346 347 SCARG(&ouap, len) = SCARG(uap, len); 348 SCARG(&ouap, prot) = SCARG(uap, prot); 349 SCARG(&ouap, fd) = SCARG(uap, fd); 350 SCARG(&ouap, pos) = SCARG(uap, pos); 351 352 /* 353 * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) 354 */ 355 fdp = p->p_fd; 356 if ((unsigned)SCARG(&ouap, fd) < fdp->fd_nfiles && /*XXX*/ 357 (fp = fdp->fd_ofiles[SCARG(&ouap, fd)]) != NULL && /*XXX*/ 358 fp->f_type == DTYPE_VNODE && /*XXX*/ 359 (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ 360 iszerodev(vp->v_rdev)) { /*XXX*/ 361 SCARG(&ouap, flags) |= MAP_ANON; 362 SCARG(&ouap, fd) = -1; 363 } 364 365 return (sys_mmap(p, &ouap, retval)); 366 } 367 368 int 369 ultrix_sys_setsockopt(p, v, retval) 370 struct proc *p; 371 void *v; 372 register_t *retval; 373 { 374 register struct ultrix_sys_setsockopt_args *uap = v; 375 struct file *fp; 376 struct mbuf *m = NULL; 377 int error; 378 379 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 380 return (error); 381 #define SO_DONTLINGER (~SO_LINGER) 382 if (SCARG(uap, name) == SO_DONTLINGER) { 383 m = m_get(M_WAIT, MT_SOOPTS); 384 mtod(m, struct linger *)->l_onoff = 0; 385 m->m_len = sizeof(struct linger); 386 return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 387 SO_LINGER, m)); 388 } 389 if (SCARG(uap, level) == IPPROTO_IP) { 390 #define EMUL_IP_MULTICAST_IF 2 391 #define EMUL_IP_MULTICAST_TTL 3 392 #define EMUL_IP_MULTICAST_LOOP 4 393 #define EMUL_IP_ADD_MEMBERSHIP 5 394 #define EMUL_IP_DROP_MEMBERSHIP 6 395 static int ipoptxlat[] = { 396 IP_MULTICAST_IF, 397 IP_MULTICAST_TTL, 398 IP_MULTICAST_LOOP, 399 IP_ADD_MEMBERSHIP, 400 IP_DROP_MEMBERSHIP 401 }; 402 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 403 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 404 SCARG(uap, name) = 405 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 406 } 407 } 408 if (SCARG(uap, valsize) > MLEN) 409 return (EINVAL); 410 if (SCARG(uap, val)) { 411 m = m_get(M_WAIT, MT_SOOPTS); 412 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 413 (u_int)SCARG(uap, valsize)); 414 if (error) { 415 (void) m_free(m); 416 return (error); 417 } 418 m->m_len = SCARG(uap, valsize); 419 } 420 return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 421 SCARG(uap, name), m)); 422 } 423 424 struct ultrix_utsname { 425 char sysname[9]; 426 char nodename[9]; 427 char nodeext[65-9]; 428 char release[9]; 429 char version[9]; 430 char machine[9]; 431 }; 432 433 int 434 ultrix_sys_uname(p, v, retval) 435 struct proc *p; 436 void *v; 437 register_t *retval; 438 { 439 struct ultrix_sys_uname_args *uap = v; 440 struct ultrix_utsname sut; 441 extern char ostype[], machine[], osrelease[]; 442 443 memset(&sut, 0, sizeof(sut)); 444 445 memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 446 memcpy(sut.nodename, hostname, sizeof(sut.nodename)); 447 sut.nodename[sizeof(sut.nodename)-1] = '\0'; 448 memcpy(sut.release, osrelease, sizeof(sut.release) - 1); 449 memcpy(sut.version, "1", sizeof(sut.version) - 1); 450 memcpy(sut.machine, machine, sizeof(sut.machine) - 1); 451 452 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 453 sizeof(struct ultrix_utsname)); 454 } 455 456 int 457 ultrix_sys_setpgrp(p, v, retval) 458 struct proc *p; 459 void *v; 460 register_t *retval; 461 { 462 struct ultrix_sys_setpgrp_args *uap = v; 463 464 /* 465 * difference to our setpgid call is to include backwards 466 * compatibility to pre-setsid() binaries. Do setsid() 467 * instead of setpgid() in those cases where the process 468 * tries to create a new session the old way. 469 */ 470 if (!SCARG(uap, pgid) && 471 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 472 return sys_setsid(p, uap, retval); 473 else 474 return sys_setpgid(p, uap, retval); 475 } 476 477 #if defined (NFSSERVER) 478 int 479 ultrix_sys_nfssvc(p, v, retval) 480 struct proc *p; 481 void *v; 482 register_t *retval; 483 { 484 485 #if 0 /* XXX */ 486 struct ultrix_sys_nfssvc_args *uap = v; 487 struct emul *e = p->p_emul; 488 struct sys_nfssvc_args outuap; 489 struct sockaddr sa; 490 int error; 491 492 memset(&outuap, 0, sizeof outuap); 493 SCARG(&outuap, fd) = SCARG(uap, fd); 494 SCARG(&outuap, mskval) = STACKGAPBASE; 495 SCARG(&outuap, msklen) = sizeof sa; 496 SCARG(&outuap, mtchval) = outuap.mskval + sizeof sa; 497 SCARG(&outuap, mtchlen) = sizeof sa; 498 499 memset(&sa, 0, sizeof sa); 500 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 501 return (error); 502 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 503 return (error); 504 505 return nfssvc(p, &outuap, retval); 506 #else 507 return (ENOSYS); 508 #endif 509 } 510 #endif /* NFSSERVER */ 511 512 struct ultrix_ustat { 513 daddr_t f_tfree; /* total free */ 514 ino_t f_tinode; /* total inodes free */ 515 char f_fname[6]; /* filsys name */ 516 char f_fpack[6]; /* filsys pack name */ 517 }; 518 519 int 520 ultrix_sys_ustat(p, v, retval) 521 struct proc *p; 522 void *v; 523 register_t *retval; 524 { 525 struct ultrix_sys_ustat_args *uap = v; 526 struct ultrix_ustat us; 527 int error; 528 529 memset(&us, 0, sizeof us); 530 531 /* 532 * XXX: should set f_tfree and f_tinode at least 533 * How do we translate dev -> fstat? (and then to ultrix_ustat) 534 */ 535 536 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 537 return (error); 538 return 0; 539 } 540 541 int 542 ultrix_sys_quotactl(p, v, retval) 543 struct proc *p; 544 void *v; 545 register_t *retval; 546 { 547 548 #ifdef notyet 549 struct ultrix_sys_quotactl_args *uap = v; 550 #endif 551 552 return EINVAL; 553 } 554 555 int 556 ultrix_sys_vhangup(p, v, retval) 557 struct proc *p; 558 void *v; 559 register_t *retval; 560 { 561 562 return 0; 563 } 564 565 566 /* 567 * RISC Ultrix cache control syscalls 568 */ 569 #ifdef __mips 570 int 571 ultrix_sys_cacheflush(p, v, retval) 572 register struct proc *p; 573 void *v; 574 register_t *retval; 575 { 576 register struct ultrix_sys_cacheflush_args /* { 577 syscallarg(void *) addr; 578 syscallarg(int) nbytes; 579 syscallarg(int) flag; 580 } */ *uap = v; 581 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 582 register int nbytes = SCARG(uap, nbytes); 583 register int whichcache = SCARG(uap, whichcache); 584 585 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 586 } 587 588 589 int 590 ultrix_sys_cachectl(p, v, retval) 591 register struct proc *p; 592 void *v; 593 register_t *retval; 594 { 595 register struct ultrix_sys_cachectl_args /* { 596 syscallarg(void *) addr; 597 syscallarg(int) nbytes; 598 syscallarg(int) cacheop; 599 } */ *uap = v; 600 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 601 register int nbytes = SCARG(uap, nbytes); 602 register int cacheop = SCARG(uap, cacheop); 603 604 return mips_user_cachectl(p, va, nbytes, cacheop); 605 } 606 607 #endif /* __mips */ 608 609 610 int 611 ultrix_sys_exportfs(p, v, retval) 612 struct proc *p; 613 void *v; 614 register_t *retval; 615 { 616 #ifdef notyet 617 struct ultrix_sys_exportfs_args *uap = v; 618 #endif 619 620 /* 621 * XXX: should perhaps translate into a mount(2) 622 * with MOUNT_EXPORT? 623 */ 624 return 0; 625 } 626 627 int 628 ultrix_sys_sigpending(p, v, retval) 629 struct proc *p; 630 void *v; 631 register_t *retval; 632 { 633 struct ultrix_sys_sigpending_args *uap = v; 634 sigset_t ss; 635 int mask; 636 637 sigpending1(p, &ss); 638 mask = ss.__bits[0]; 639 640 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 641 } 642 643 int 644 ultrix_sys_sigreturn(p, v, retval) 645 struct proc *p; 646 void *v; 647 register_t *retval; 648 { 649 struct ultrix_sys_sigreturn_args *uap = v; 650 651 /* struct sigcontext13 is close enough to Ultrix */ 652 653 return (compat_13_sys_sigreturn(p, uap, retval)); 654 } 655 656 int 657 ultrix_sys_sigcleanup(p, v, retval) 658 struct proc *p; 659 void *v; 660 register_t *retval; 661 { 662 struct ultrix_sys_sigcleanup_args *uap = v; 663 664 /* struct sigcontext13 is close enough to Ultrix */ 665 666 return (compat_13_sys_sigreturn(p, uap, retval)); 667 } 668 669 int 670 ultrix_sys_sigsuspend(p, v, retval) 671 struct proc *p; 672 void *v; 673 register_t *retval; 674 { 675 struct ultrix_sys_sigsuspend_args *uap = v; 676 int mask = SCARG(uap, mask); 677 sigset_t ss; 678 679 ss.__bits[0] = mask; 680 ss.__bits[1] = 0; 681 ss.__bits[2] = 0; 682 ss.__bits[3] = 0; 683 684 return (sigsuspend1(p, &ss)); 685 } 686 687 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 688 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 689 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 690 691 int 692 ultrix_sys_sigvec(p, v, retval) 693 struct proc *p; 694 void *v; 695 register_t *retval; 696 { 697 struct ultrix_sys_sigvec_args *uap = v; 698 struct sigvec nsv, osv; 699 struct sigaction nsa, osa; 700 int error; 701 702 if (SCARG(uap, nsv)) { 703 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 704 if (error) 705 return (error); 706 nsa.sa_handler = nsv.sv_handler; 707 #if 0 /* documentation */ 708 /* ONSTACK is identical */ 709 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 710 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 711 /* old signal() - always restart */ 712 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 713 /* inverted meaning (same bit) */ 714 ) 715 nsa.sa_flags |= SA_RESTART; 716 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 717 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 718 nsa.sa_flags ^= SA_RESTART; 719 #endif 720 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 721 } 722 error = sigaction1(p, SCARG(uap, signum), 723 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0); 724 if (error) 725 return (error); 726 if (SCARG(uap, osv)) { 727 osv.sv_handler = osa.sa_handler; 728 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 729 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 730 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 731 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 732 if (error) 733 return (error); 734 } 735 return (0); 736 } 737 738 int 739 ultrix_sys_shmsys(p, v, retval) 740 struct proc *p; 741 void *v; 742 register_t *retval; 743 { 744 745 #ifdef SYSVSHM 746 747 /* Ultrix SVSHM weirndess: */ 748 struct ultrix_sys_shmsys_args *uap = v; 749 struct sys_shmat_args shmat_args; 750 struct sys_shmctl_args shmctl_args; 751 struct sys_shmdt_args shmdt_args; 752 struct sys_shmget_args shmget_args; 753 754 755 switch (SCARG(uap, shmop)) { 756 case 0: /* Ultrix shmat() */ 757 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 758 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 759 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 760 return (sys_shmat(p, &shmat_args, retval)); 761 762 case 1: /* Ultrix shmctl() */ 763 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 764 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 765 SCARG(&shmctl_args, buf) = (struct shmid_ds *)SCARG(uap, a4); 766 return (sys_shmctl(p, &shmctl_args, retval)); 767 768 case 2: /* Ultrix shmdt() */ 769 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 770 return (sys_shmdt(p, &shmdt_args, retval)); 771 772 case 3: /* Ultrix shmget() */ 773 SCARG(&shmget_args, key) = SCARG(uap, a2); 774 SCARG(&shmget_args, size) = SCARG(uap, a3); 775 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 776 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 777 return (sys_shmget(p, &shmget_args, retval)); 778 779 default: 780 return (EINVAL); 781 } 782 #else 783 return (EOPNOTSUPP); 784 #endif /* SYSVSHM */ 785 } 786
Indexes created Tue Sep 23 22:09:46 GMT 2025