ultrix_misc.c revision 1.50
1 /* $NetBSD: ultrix_misc.c,v 1.50 1999/02/09 20:32:46 christos 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 /* 88 * Ultrix compatibility module. 89 * 90 * Ultrix system calls that are implemented differently in BSD are 91 * handled here. 92 */ 93 94 #include "fs_nfs.h" 95 96 #include <sys/param.h> 97 #include <sys/systm.h> 98 #include <sys/namei.h> 99 #include <sys/dirent.h> 100 #include <sys/proc.h> 101 #include <sys/file.h> 102 #include <sys/filedesc.h> 103 /*#include <sys/stat.h>*/ 104 /*#include <sys/ioctl.h>*/ 105 #include <sys/kernel.h> 106 #include <sys/exec.h> 107 #include <sys/malloc.h> 108 #include <sys/mbuf.h> 109 #include <sys/mman.h> 110 #include <sys/mount.h> 111 #include <sys/resource.h> 112 #include <sys/resourcevar.h> 113 #include <sys/signal.h> 114 #include <sys/signalvar.h> 115 #include <sys/socket.h> 116 #include <sys/vnode.h> 117 #include <sys/uio.h> 118 #include <sys/wait.h> 119 #include <sys/utsname.h> 120 #include <sys/unistd.h> 121 #include <sys/ipc.h> 122 123 #include <sys/syscallargs.h> 124 125 #include <compat/ultrix/ultrix_syscall.h> 126 #include <compat/ultrix/ultrix_syscallargs.h> 127 #include <compat/common/compat_util.h> 128 129 #include <netinet/in.h> 130 131 #include <miscfs/specfs/specdev.h> 132 133 #include <nfs/rpcv2.h> 134 #include <nfs/nfsproto.h> 135 #include <nfs/nfs.h> 136 137 #include <vm/vm.h> /* pmap declarations */ 138 139 #include <sys/conf.h> /* iszerodev() */ 140 #include <sys/socketvar.h> /* sosetopt() */ 141 142 143 extern struct sysent ultrix_sysent[]; 144 extern char *ultrix_syscallnames[]; 145 146 147 /* 148 * Select the appropriate setregs callback for the target architecture. 149 */ 150 #ifdef __mips__ 151 #include <machine/ecoff_machdep.h> 152 #define ULTRIX_EXEC_SETREGS cpu_exec_ecoff_setregs 153 #endif /* mips */ 154 155 #ifdef __vax__ 156 #define ULTRIX_EXEC_SETREGS setregs 157 #endif /* vax */ 158 159 160 extern void ULTRIX_EXEC_SETREGS __P((struct proc *, struct exec_package *, 161 u_long)); 162 extern char ultrix_sigcode[], ultrix_esigcode[]; 163 164 struct emul emul_ultrix = { 165 "ultrix", 166 NULL, 167 sendsig, 168 ULTRIX_SYS_syscall, 169 ULTRIX_SYS_MAXSYSCALL, 170 ultrix_sysent, 171 ultrix_syscallnames, 172 0, 173 copyargs, 174 ULTRIX_EXEC_SETREGS, 175 ultrix_sigcode, 176 ultrix_esigcode, 177 }; 178 179 #define GSI_PROG_ENV 1 180 181 int 182 ultrix_sys_getsysinfo(p, v, retval) 183 struct proc *p; 184 void *v; 185 register_t *retval; 186 { 187 struct ultrix_sys_getsysinfo_args *uap = v; 188 static short progenv = 0; 189 190 switch (SCARG(uap, op)) { 191 /* operations implemented: */ 192 case GSI_PROG_ENV: 193 if (SCARG(uap, nbytes) < sizeof(short)) 194 return EINVAL; 195 *retval = 1; 196 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 197 default: 198 *retval = 0; /* info unavail */ 199 return 0; 200 } 201 } 202 203 int 204 ultrix_sys_setsysinfo(p, v, retval) 205 struct proc *p; 206 void *v; 207 register_t *retval; 208 { 209 210 #ifdef notyet 211 struct ultrix_sys_setsysinfo_args *uap = v; 212 #endif 213 214 *retval = 0; 215 return 0; 216 } 217 218 int 219 ultrix_sys_waitpid(p, v, retval) 220 struct proc *p; 221 void *v; 222 register_t *retval; 223 { 224 struct ultrix_sys_waitpid_args *uap = v; 225 struct sys_wait4_args ua; 226 227 SCARG(&ua, pid) = SCARG(uap, pid); 228 SCARG(&ua, status) = SCARG(uap, status); 229 SCARG(&ua, options) = SCARG(uap, options); 230 SCARG(&ua, rusage) = 0; 231 232 return (sys_wait4(p, &ua, retval)); 233 } 234 235 int 236 ultrix_sys_wait3(p, v, retval) 237 struct proc *p; 238 void *v; 239 register_t *retval; 240 { 241 struct ultrix_sys_wait3_args *uap = v; 242 struct sys_wait4_args ua; 243 244 SCARG(&ua, pid) = -1; 245 SCARG(&ua, status) = SCARG(uap, status); 246 SCARG(&ua, options) = SCARG(uap, options); 247 SCARG(&ua, rusage) = SCARG(uap, rusage); 248 249 return (sys_wait4(p, &ua, retval)); 250 } 251 252 /* 253 * Ultrix binaries pass in FD_MAX as the first arg to select(). 254 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 255 * can handle. 256 * Since we can't have more than the (native) FD_MAX descriptors open, 257 * limit nfds to at most FD_MAX. 258 */ 259 int 260 ultrix_sys_select(p, v, retval) 261 struct proc *p; 262 void *v; 263 register_t *retval; 264 { 265 struct sys_select_args *uap = v; 266 struct timeval atv; 267 int error; 268 269 /* Limit number of FDs selected on to the native maximum */ 270 271 if (SCARG(uap, nd) > FD_SETSIZE) 272 SCARG(uap, nd) = FD_SETSIZE; 273 274 /* Check for negative timeval */ 275 if (SCARG(uap, tv)) { 276 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 277 sizeof(atv)); 278 if (error) 279 goto done; 280 #ifdef DEBUG 281 /* Ultrix clients sometimes give negative timeouts? */ 282 if (atv.tv_sec < 0 || atv.tv_usec < 0) 283 printf("ultrix select( %ld, %ld): negative timeout\n", 284 atv.tv_sec, atv.tv_usec); 285 /*tvp = (timeval *)STACKGAPBASE;*/ 286 #endif 287 288 } 289 error = sys_select(p, (void*) uap, retval); 290 if (error == EINVAL) 291 printf("ultrix select: bad args?\n"); 292 293 done: 294 return error; 295 } 296 297 #if defined(NFS) 298 int 299 async_daemon(p, v, retval) 300 struct proc *p; 301 void *v; 302 register_t *retval; 303 { 304 struct sys_nfssvc_args ouap; 305 306 SCARG(&ouap, flag) = NFSSVC_BIOD; 307 SCARG(&ouap, argp) = NULL; 308 309 return (sys_nfssvc(p, &ouap, retval)); 310 } 311 #endif /* NFS */ 312 313 314 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 315 316 int 317 ultrix_sys_mmap(p, v, retval) 318 register struct proc *p; 319 void *v; 320 register_t *retval; 321 { 322 register struct ultrix_sys_mmap_args *uap = v; 323 struct sys_mmap_args ouap; 324 register struct filedesc *fdp; 325 register struct file *fp; 326 register struct vnode *vp; 327 328 /* 329 * Verify the arguments. 330 */ 331 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 332 return (EINVAL); /* XXX still needed? */ 333 334 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 335 return (EINVAL); 336 337 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 338 SCARG(&ouap, addr) = SCARG(uap, addr); 339 340 if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && 341 SCARG(&ouap, addr) != 0 && 342 SCARG(&ouap, addr) < (void *)round_page(p->p_vmspace->vm_daddr+MAXDSIZ)) 343 SCARG(&ouap, addr) = (void *)round_page(p->p_vmspace->vm_daddr+MAXDSIZ); 344 345 SCARG(&ouap, len) = SCARG(uap, len); 346 SCARG(&ouap, prot) = SCARG(uap, prot); 347 SCARG(&ouap, fd) = SCARG(uap, fd); 348 SCARG(&ouap, pos) = SCARG(uap, pos); 349 350 /* 351 * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) 352 */ 353 fdp = p->p_fd; 354 if ((unsigned)SCARG(&ouap, fd) < fdp->fd_nfiles && /*XXX*/ 355 (fp = fdp->fd_ofiles[SCARG(&ouap, fd)]) != NULL && /*XXX*/ 356 fp->f_type == DTYPE_VNODE && /*XXX*/ 357 (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ 358 iszerodev(vp->v_rdev)) { /*XXX*/ 359 SCARG(&ouap, flags) |= MAP_ANON; 360 SCARG(&ouap, fd) = -1; 361 } 362 363 return (sys_mmap(p, &ouap, retval)); 364 } 365 366 int 367 ultrix_sys_setsockopt(p, v, retval) 368 struct proc *p; 369 void *v; 370 register_t *retval; 371 { 372 register struct ultrix_sys_setsockopt_args *uap = v; 373 struct file *fp; 374 struct mbuf *m = NULL; 375 int error; 376 377 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 378 return (error); 379 #define SO_DONTLINGER (~SO_LINGER) 380 if (SCARG(uap, name) == SO_DONTLINGER) { 381 m = m_get(M_WAIT, MT_SOOPTS); 382 mtod(m, struct linger *)->l_onoff = 0; 383 m->m_len = sizeof(struct linger); 384 return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 385 SO_LINGER, m)); 386 } 387 if (SCARG(uap, level) == IPPROTO_IP) { 388 #define EMUL_IP_MULTICAST_IF 2 389 #define EMUL_IP_MULTICAST_TTL 3 390 #define EMUL_IP_MULTICAST_LOOP 4 391 #define EMUL_IP_ADD_MEMBERSHIP 5 392 #define EMUL_IP_DROP_MEMBERSHIP 6 393 static int ipoptxlat[] = { 394 IP_MULTICAST_IF, 395 IP_MULTICAST_TTL, 396 IP_MULTICAST_LOOP, 397 IP_ADD_MEMBERSHIP, 398 IP_DROP_MEMBERSHIP 399 }; 400 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 401 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 402 SCARG(uap, name) = 403 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 404 } 405 } 406 if (SCARG(uap, valsize) > MLEN) 407 return (EINVAL); 408 if (SCARG(uap, val)) { 409 m = m_get(M_WAIT, MT_SOOPTS); 410 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 411 (u_int)SCARG(uap, valsize)); 412 if (error) { 413 (void) m_free(m); 414 return (error); 415 } 416 m->m_len = SCARG(uap, valsize); 417 } 418 return (sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 419 SCARG(uap, name), m)); 420 } 421 422 struct ultrix_utsname { 423 char sysname[9]; 424 char nodename[9]; 425 char nodeext[65-9]; 426 char release[9]; 427 char version[9]; 428 char machine[9]; 429 }; 430 431 int 432 ultrix_sys_uname(p, v, retval) 433 struct proc *p; 434 void *v; 435 register_t *retval; 436 { 437 struct ultrix_sys_uname_args *uap = v; 438 struct ultrix_utsname sut; 439 extern char ostype[], machine[], osrelease[]; 440 441 memset(&sut, 0, sizeof(sut)); 442 443 memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 444 memcpy(sut.nodename, hostname, sizeof(sut.nodename)); 445 sut.nodename[sizeof(sut.nodename)-1] = '\0'; 446 memcpy(sut.release, osrelease, sizeof(sut.release) - 1); 447 memcpy(sut.version, "1", sizeof(sut.version) - 1); 448 memcpy(sut.machine, machine, sizeof(sut.machine) - 1); 449 450 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 451 sizeof(struct ultrix_utsname)); 452 } 453 454 int 455 ultrix_sys_setpgrp(p, v, retval) 456 struct proc *p; 457 void *v; 458 register_t *retval; 459 { 460 struct ultrix_sys_setpgrp_args *uap = v; 461 462 /* 463 * difference to our setpgid call is to include backwards 464 * compatibility to pre-setsid() binaries. Do setsid() 465 * instead of setpgid() in those cases where the process 466 * tries to create a new session the old way. 467 */ 468 if (!SCARG(uap, pgid) && 469 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 470 return sys_setsid(p, uap, retval); 471 else 472 return sys_setpgid(p, uap, retval); 473 } 474 475 #if defined (NFSSERVER) 476 int 477 ultrix_sys_nfssvc(p, v, retval) 478 struct proc *p; 479 void *v; 480 register_t *retval; 481 { 482 483 #if 0 /* XXX */ 484 struct ultrix_sys_nfssvc_args *uap = v; 485 struct emul *e = p->p_emul; 486 struct sys_nfssvc_args outuap; 487 struct sockaddr sa; 488 int error; 489 490 memset(&outuap, 0, sizeof outuap); 491 SCARG(&outuap, fd) = SCARG(uap, fd); 492 SCARG(&outuap, mskval) = STACKGAPBASE; 493 SCARG(&outuap, msklen) = sizeof sa; 494 SCARG(&outuap, mtchval) = outuap.mskval + sizeof sa; 495 SCARG(&outuap, mtchlen) = sizeof sa; 496 497 memset(&sa, 0, sizeof sa); 498 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 499 return (error); 500 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 501 return (error); 502 503 return nfssvc(p, &outuap, retval); 504 #else 505 return (ENOSYS); 506 #endif 507 } 508 #endif /* NFSSERVER */ 509 510 struct ultrix_ustat { 511 daddr_t f_tfree; /* total free */ 512 ino_t f_tinode; /* total inodes free */ 513 char f_fname[6]; /* filsys name */ 514 char f_fpack[6]; /* filsys pack name */ 515 }; 516 517 int 518 ultrix_sys_ustat(p, v, retval) 519 struct proc *p; 520 void *v; 521 register_t *retval; 522 { 523 struct ultrix_sys_ustat_args *uap = v; 524 struct ultrix_ustat us; 525 int error; 526 527 memset(&us, 0, sizeof us); 528 529 /* 530 * XXX: should set f_tfree and f_tinode at least 531 * How do we translate dev -> fstat? (and then to ultrix_ustat) 532 */ 533 534 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 535 return (error); 536 return 0; 537 } 538 539 int 540 ultrix_sys_quotactl(p, v, retval) 541 struct proc *p; 542 void *v; 543 register_t *retval; 544 { 545 546 #ifdef notyet 547 struct ultrix_sys_quotactl_args *uap = v; 548 #endif 549 550 return EINVAL; 551 } 552 553 int 554 ultrix_sys_vhangup(p, v, retval) 555 struct proc *p; 556 void *v; 557 register_t *retval; 558 { 559 560 return 0; 561 } 562 563 564 /* 565 * RISC Ultrix cache control syscalls 566 */ 567 #ifdef __mips 568 int 569 ultrix_sys_cacheflush(p, v, retval) 570 register struct proc *p; 571 void *v; 572 register_t *retval; 573 { 574 register struct ultrix_sys_cacheflush_args /* { 575 syscallarg(void *) addr; 576 syscallarg(int) nbytes; 577 syscallarg(int) flag; 578 } */ *uap = v; 579 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 580 register int nbytes = SCARG(uap, nbytes); 581 register int whichcache = SCARG(uap, whichcache); 582 583 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 584 } 585 586 587 int 588 ultrix_sys_cachectl(p, v, retval) 589 register struct proc *p; 590 void *v; 591 register_t *retval; 592 { 593 register struct ultrix_sys_cachectl_args /* { 594 syscallarg(void *) addr; 595 syscallarg(int) nbytes; 596 syscallarg(int) cacheop; 597 } */ *uap = v; 598 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 599 register int nbytes = SCARG(uap, nbytes); 600 register int cacheop = SCARG(uap, cacheop); 601 602 return mips_user_cachectl(p, va, nbytes, cacheop); 603 } 604 605 #endif /* __mips */ 606 607 608 int 609 ultrix_sys_exportfs(p, v, retval) 610 struct proc *p; 611 void *v; 612 register_t *retval; 613 { 614 #ifdef notyet 615 struct ultrix_sys_exportfs_args *uap = v; 616 #endif 617 618 /* 619 * XXX: should perhaps translate into a mount(2) 620 * with MOUNT_EXPORT? 621 */ 622 return 0; 623 } 624 625 int 626 ultrix_sys_sigpending(p, v, retval) 627 struct proc *p; 628 void *v; 629 register_t *retval; 630 { 631 struct ultrix_sys_sigpending_args *uap = v; 632 sigset_t ss; 633 int mask; 634 635 sigpending1(p, &ss); 636 mask = ss.__bits[0]; 637 638 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 639 } 640 641 int 642 ultrix_sys_sigreturn(p, v, retval) 643 struct proc *p; 644 void *v; 645 register_t *retval; 646 { 647 struct ultrix_sys_sigreturn_args *uap = v; 648 649 /* struct sigcontext13 is close enough to Ultrix */ 650 651 return (compat_13_sys_sigreturn(p, uap, retval)); 652 } 653 654 int 655 ultrix_sys_sigcleanup(p, v, retval) 656 struct proc *p; 657 void *v; 658 register_t *retval; 659 { 660 struct ultrix_sys_sigcleanup_args *uap = v; 661 662 /* struct sigcontext13 is close enough to Ultrix */ 663 664 return (compat_13_sys_sigreturn(p, uap, retval)); 665 } 666 667 int 668 ultrix_sys_sigsuspend(p, v, retval) 669 struct proc *p; 670 void *v; 671 register_t *retval; 672 { 673 struct ultrix_sys_sigsuspend_args *uap = v; 674 int mask = SCARG(uap, mask); 675 sigset_t ss; 676 677 ss.__bits[0] = mask; 678 ss.__bits[1] = 0; 679 ss.__bits[2] = 0; 680 ss.__bits[3] = 0; 681 682 return (sigsuspend1(p, &ss)); 683 } 684 685 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 686 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 687 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 688 689 int 690 ultrix_sys_sigvec(p, v, retval) 691 struct proc *p; 692 void *v; 693 register_t *retval; 694 { 695 struct ultrix_sys_sigvec_args *uap = v; 696 struct sigvec nsv, osv; 697 struct sigaction nsa, osa; 698 int error; 699 700 if (SCARG(uap, nsv)) { 701 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 702 if (error) 703 return (error); 704 nsa.sa_handler = nsv.sv_handler; 705 #if 0 /* documentation */ 706 /* ONSTACK is identical */ 707 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 708 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 709 /* old signal() - always restart */ 710 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 711 /* inverted meaning (same bit) */ 712 ) 713 nsa.sa_flags |= SA_RESTART; 714 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 715 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 716 nsa.sa_flags ^= SA_RESTART; 717 #endif 718 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 719 } 720 error = sigaction1(p, SCARG(uap, signum), 721 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0); 722 if (error) 723 return (error); 724 if (SCARG(uap, osv)) { 725 osv.sv_handler = osa.sa_handler; 726 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 727 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 728 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 729 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 730 if (error) 731 return (error); 732 } 733 return (0); 734 } 735 736 int 737 ultrix_sys_shmsys(p, v, retval) 738 struct proc *p; 739 void *v; 740 register_t *retval; 741 { 742 743 #ifdef SYSVSHM 744 745 /* Ultrix SVSHM weirndess: */ 746 struct ultrix_sys_shmsys_args *uap = v; 747 struct sys_shmat_args shmat_args; 748 struct sys_shmctl_args shmctl_args; 749 struct sys_shmdt_args shmdt_args; 750 struct sys_shmget_args shmget_args; 751 752 753 switch (SCARG(uap, shmop)) { 754 case 0: /* Ultrix shmat() */ 755 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 756 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 757 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 758 return (sys_shmat(p, &shmat_args, retval)); 759 760 case 1: /* Ultrix shmctl() */ 761 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 762 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 763 SCARG(&shmctl_args, buf) = (struct shmid_ds *)SCARG(uap, a4); 764 return (sys_shmctl(p, &shmctl_args, retval)); 765 766 case 2: /* Ultrix shmdt() */ 767 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 768 return (sys_shmdt(p, &shmdt_args, retval)); 769 770 case 3: /* Ultrix shmget() */ 771 SCARG(&shmget_args, key) = SCARG(uap, a2); 772 SCARG(&shmget_args, size) = SCARG(uap, a3); 773 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 774 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 775 return (sys_shmget(p, &shmget_args, retval)); 776 777 default: 778 return (EINVAL); 779 } 780 #else 781 return (EOPNOTSUPP); 782 #endif /* SYSVSHM */ 783 } 784
Indexes created Fri Oct 03 17:10:05 GMT 2025