ultrix_misc.c revision 1.51
1 /* $NetBSD: ultrix_misc.c,v 1.51 1999/05/05 20:01:07 thorpej 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 /* getsock() will use the descriptor for us */ 378 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 379 return (error); 380 #define SO_DONTLINGER (~SO_LINGER) 381 if (SCARG(uap, name) == SO_DONTLINGER) { 382 m = m_get(M_WAIT, MT_SOOPTS); 383 mtod(m, struct linger *)->l_onoff = 0; 384 m->m_len = sizeof(struct linger); 385 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 386 SO_LINGER, m); 387 } 388 if (SCARG(uap, level) == IPPROTO_IP) { 389 #define EMUL_IP_MULTICAST_IF 2 390 #define EMUL_IP_MULTICAST_TTL 3 391 #define EMUL_IP_MULTICAST_LOOP 4 392 #define EMUL_IP_ADD_MEMBERSHIP 5 393 #define EMUL_IP_DROP_MEMBERSHIP 6 394 static int ipoptxlat[] = { 395 IP_MULTICAST_IF, 396 IP_MULTICAST_TTL, 397 IP_MULTICAST_LOOP, 398 IP_ADD_MEMBERSHIP, 399 IP_DROP_MEMBERSHIP 400 }; 401 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 402 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 403 SCARG(uap, name) = 404 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 405 } 406 } 407 if (SCARG(uap, valsize) > MLEN) { 408 error = EINVAL; 409 goto out; 410 } 411 if (SCARG(uap, val)) { 412 m = m_get(M_WAIT, MT_SOOPTS); 413 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 414 (u_int)SCARG(uap, valsize)); 415 if (error) { 416 (void) m_free(m); 417 goto out; 418 } 419 m->m_len = SCARG(uap, valsize); 420 } 421 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 422 SCARG(uap, name), m); 423 out: 424 FILE_UNUSE(fp, p); 425 return (error); 426 } 427 428 struct ultrix_utsname { 429 char sysname[9]; 430 char nodename[9]; 431 char nodeext[65-9]; 432 char release[9]; 433 char version[9]; 434 char machine[9]; 435 }; 436 437 int 438 ultrix_sys_uname(p, v, retval) 439 struct proc *p; 440 void *v; 441 register_t *retval; 442 { 443 struct ultrix_sys_uname_args *uap = v; 444 struct ultrix_utsname sut; 445 extern char ostype[], machine[], osrelease[]; 446 447 memset(&sut, 0, sizeof(sut)); 448 449 memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 450 memcpy(sut.nodename, hostname, sizeof(sut.nodename)); 451 sut.nodename[sizeof(sut.nodename)-1] = '\0'; 452 memcpy(sut.release, osrelease, sizeof(sut.release) - 1); 453 memcpy(sut.version, "1", sizeof(sut.version) - 1); 454 memcpy(sut.machine, machine, sizeof(sut.machine) - 1); 455 456 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 457 sizeof(struct ultrix_utsname)); 458 } 459 460 int 461 ultrix_sys_setpgrp(p, v, retval) 462 struct proc *p; 463 void *v; 464 register_t *retval; 465 { 466 struct ultrix_sys_setpgrp_args *uap = v; 467 468 /* 469 * difference to our setpgid call is to include backwards 470 * compatibility to pre-setsid() binaries. Do setsid() 471 * instead of setpgid() in those cases where the process 472 * tries to create a new session the old way. 473 */ 474 if (!SCARG(uap, pgid) && 475 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 476 return sys_setsid(p, uap, retval); 477 else 478 return sys_setpgid(p, uap, retval); 479 } 480 481 #if defined (NFSSERVER) 482 int 483 ultrix_sys_nfssvc(p, v, retval) 484 struct proc *p; 485 void *v; 486 register_t *retval; 487 { 488 489 #if 0 /* XXX */ 490 struct ultrix_sys_nfssvc_args *uap = v; 491 struct emul *e = p->p_emul; 492 struct sys_nfssvc_args outuap; 493 struct sockaddr sa; 494 int error; 495 496 memset(&outuap, 0, sizeof outuap); 497 SCARG(&outuap, fd) = SCARG(uap, fd); 498 SCARG(&outuap, mskval) = STACKGAPBASE; 499 SCARG(&outuap, msklen) = sizeof sa; 500 SCARG(&outuap, mtchval) = outuap.mskval + sizeof sa; 501 SCARG(&outuap, mtchlen) = sizeof sa; 502 503 memset(&sa, 0, sizeof sa); 504 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 505 return (error); 506 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 507 return (error); 508 509 return nfssvc(p, &outuap, retval); 510 #else 511 return (ENOSYS); 512 #endif 513 } 514 #endif /* NFSSERVER */ 515 516 struct ultrix_ustat { 517 daddr_t f_tfree; /* total free */ 518 ino_t f_tinode; /* total inodes free */ 519 char f_fname[6]; /* filsys name */ 520 char f_fpack[6]; /* filsys pack name */ 521 }; 522 523 int 524 ultrix_sys_ustat(p, v, retval) 525 struct proc *p; 526 void *v; 527 register_t *retval; 528 { 529 struct ultrix_sys_ustat_args *uap = v; 530 struct ultrix_ustat us; 531 int error; 532 533 memset(&us, 0, sizeof us); 534 535 /* 536 * XXX: should set f_tfree and f_tinode at least 537 * How do we translate dev -> fstat? (and then to ultrix_ustat) 538 */ 539 540 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 541 return (error); 542 return 0; 543 } 544 545 int 546 ultrix_sys_quotactl(p, v, retval) 547 struct proc *p; 548 void *v; 549 register_t *retval; 550 { 551 552 #ifdef notyet 553 struct ultrix_sys_quotactl_args *uap = v; 554 #endif 555 556 return EINVAL; 557 } 558 559 int 560 ultrix_sys_vhangup(p, v, retval) 561 struct proc *p; 562 void *v; 563 register_t *retval; 564 { 565 566 return 0; 567 } 568 569 570 /* 571 * RISC Ultrix cache control syscalls 572 */ 573 #ifdef __mips 574 int 575 ultrix_sys_cacheflush(p, v, retval) 576 register struct proc *p; 577 void *v; 578 register_t *retval; 579 { 580 register struct ultrix_sys_cacheflush_args /* { 581 syscallarg(void *) addr; 582 syscallarg(int) nbytes; 583 syscallarg(int) flag; 584 } */ *uap = v; 585 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 586 register int nbytes = SCARG(uap, nbytes); 587 register int whichcache = SCARG(uap, whichcache); 588 589 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 590 } 591 592 593 int 594 ultrix_sys_cachectl(p, v, retval) 595 register struct proc *p; 596 void *v; 597 register_t *retval; 598 { 599 register struct ultrix_sys_cachectl_args /* { 600 syscallarg(void *) addr; 601 syscallarg(int) nbytes; 602 syscallarg(int) cacheop; 603 } */ *uap = v; 604 register vaddr_t va = (vaddr_t)SCARG(uap, addr); 605 register int nbytes = SCARG(uap, nbytes); 606 register int cacheop = SCARG(uap, cacheop); 607 608 return mips_user_cachectl(p, va, nbytes, cacheop); 609 } 610 611 #endif /* __mips */ 612 613 614 int 615 ultrix_sys_exportfs(p, v, retval) 616 struct proc *p; 617 void *v; 618 register_t *retval; 619 { 620 #ifdef notyet 621 struct ultrix_sys_exportfs_args *uap = v; 622 #endif 623 624 /* 625 * XXX: should perhaps translate into a mount(2) 626 * with MOUNT_EXPORT? 627 */ 628 return 0; 629 } 630 631 int 632 ultrix_sys_sigpending(p, v, retval) 633 struct proc *p; 634 void *v; 635 register_t *retval; 636 { 637 struct ultrix_sys_sigpending_args *uap = v; 638 sigset_t ss; 639 int mask; 640 641 sigpending1(p, &ss); 642 mask = ss.__bits[0]; 643 644 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 645 } 646 647 int 648 ultrix_sys_sigreturn(p, v, retval) 649 struct proc *p; 650 void *v; 651 register_t *retval; 652 { 653 struct ultrix_sys_sigreturn_args *uap = v; 654 655 /* struct sigcontext13 is close enough to Ultrix */ 656 657 return (compat_13_sys_sigreturn(p, uap, retval)); 658 } 659 660 int 661 ultrix_sys_sigcleanup(p, v, retval) 662 struct proc *p; 663 void *v; 664 register_t *retval; 665 { 666 struct ultrix_sys_sigcleanup_args *uap = v; 667 668 /* struct sigcontext13 is close enough to Ultrix */ 669 670 return (compat_13_sys_sigreturn(p, uap, retval)); 671 } 672 673 int 674 ultrix_sys_sigsuspend(p, v, retval) 675 struct proc *p; 676 void *v; 677 register_t *retval; 678 { 679 struct ultrix_sys_sigsuspend_args *uap = v; 680 int mask = SCARG(uap, mask); 681 sigset_t ss; 682 683 ss.__bits[0] = mask; 684 ss.__bits[1] = 0; 685 ss.__bits[2] = 0; 686 ss.__bits[3] = 0; 687 688 return (sigsuspend1(p, &ss)); 689 } 690 691 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 692 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 693 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 694 695 int 696 ultrix_sys_sigvec(p, v, retval) 697 struct proc *p; 698 void *v; 699 register_t *retval; 700 { 701 struct ultrix_sys_sigvec_args *uap = v; 702 struct sigvec nsv, osv; 703 struct sigaction nsa, osa; 704 int error; 705 706 if (SCARG(uap, nsv)) { 707 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 708 if (error) 709 return (error); 710 nsa.sa_handler = nsv.sv_handler; 711 #if 0 /* documentation */ 712 /* ONSTACK is identical */ 713 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 714 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 715 /* old signal() - always restart */ 716 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 717 /* inverted meaning (same bit) */ 718 ) 719 nsa.sa_flags |= SA_RESTART; 720 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 721 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 722 nsa.sa_flags ^= SA_RESTART; 723 #endif 724 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 725 } 726 error = sigaction1(p, SCARG(uap, signum), 727 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0); 728 if (error) 729 return (error); 730 if (SCARG(uap, osv)) { 731 osv.sv_handler = osa.sa_handler; 732 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 733 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 734 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 735 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 736 if (error) 737 return (error); 738 } 739 return (0); 740 } 741 742 int 743 ultrix_sys_shmsys(p, v, retval) 744 struct proc *p; 745 void *v; 746 register_t *retval; 747 { 748 749 #ifdef SYSVSHM 750 751 /* Ultrix SVSHM weirndess: */ 752 struct ultrix_sys_shmsys_args *uap = v; 753 struct sys_shmat_args shmat_args; 754 struct sys_shmctl_args shmctl_args; 755 struct sys_shmdt_args shmdt_args; 756 struct sys_shmget_args shmget_args; 757 758 759 switch (SCARG(uap, shmop)) { 760 case 0: /* Ultrix shmat() */ 761 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 762 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 763 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 764 return (sys_shmat(p, &shmat_args, retval)); 765 766 case 1: /* Ultrix shmctl() */ 767 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 768 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 769 SCARG(&shmctl_args, buf) = (struct shmid_ds *)SCARG(uap, a4); 770 return (sys_shmctl(p, &shmctl_args, retval)); 771 772 case 2: /* Ultrix shmdt() */ 773 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 774 return (sys_shmdt(p, &shmdt_args, retval)); 775 776 case 3: /* Ultrix shmget() */ 777 SCARG(&shmget_args, key) = SCARG(uap, a2); 778 SCARG(&shmget_args, size) = SCARG(uap, a3); 779 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 780 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 781 return (sys_shmget(p, &shmget_args, retval)); 782 783 default: 784 return (EINVAL); 785 } 786 #else 787 return (EOPNOTSUPP); 788 #endif /* SYSVSHM */ 789 } 790
Indexes created Fri Oct 03 02:09:57 GMT 2025