kern_sysctl.c revision 1.14
1 /* $NetBSD: kern_sysctl.c,v 1.14 1996/02/09 18:59:52 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1982, 1986, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Mike Karels at Berkeley Software Design, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94 39 */ 40 41 /* 42 * sysctl system call. 43 */ 44 45 #include <sys/param.h> 46 #include <sys/systm.h> 47 #include <sys/kernel.h> 48 #include <sys/malloc.h> 49 #include <sys/proc.h> 50 #include <sys/file.h> 51 #include <sys/vnode.h> 52 #include <sys/unistd.h> 53 #include <sys/buf.h> 54 #include <sys/ioctl.h> 55 #include <sys/tty.h> 56 #include <sys/disklabel.h> 57 #include <vm/vm.h> 58 #include <sys/sysctl.h> 59 60 #include <sys/mount.h> 61 #include <sys/syscallargs.h> 62 63 /* 64 * Locking and stats 65 */ 66 static struct sysctl_lock { 67 int sl_lock; 68 int sl_want; 69 int sl_locked; 70 } memlock; 71 72 int 73 sys___sysctl(p, v, retval) 74 struct proc *p; 75 void *v; 76 register_t *retval; 77 { 78 register struct sys___sysctl_args /* { 79 syscallarg(int *) name; 80 syscallarg(u_int) namelen; 81 syscallarg(void *) old; 82 syscallarg(size_t *) oldlenp; 83 syscallarg(void *) new; 84 syscallarg(size_t) newlen; 85 } */ *uap = v; 86 int error, dolock = 1; 87 size_t savelen = 0, oldlen = 0; 88 sysctlfn *fn; 89 int name[CTL_MAXNAME]; 90 91 if (SCARG(uap, new) != NULL && 92 (error = suser(p->p_ucred, &p->p_acflag))) 93 return (error); 94 /* 95 * all top-level sysctl names are non-terminal 96 */ 97 if (SCARG(uap, namelen) > CTL_MAXNAME || SCARG(uap, namelen) < 2) 98 return (EINVAL); 99 error = copyin(SCARG(uap, name), &name, 100 SCARG(uap, namelen) * sizeof(int)); 101 if (error) 102 return (error); 103 104 switch (name[0]) { 105 case CTL_KERN: 106 fn = kern_sysctl; 107 if (name[2] != KERN_VNODE) /* XXX */ 108 dolock = 0; 109 break; 110 case CTL_HW: 111 fn = hw_sysctl; 112 break; 113 case CTL_VM: 114 fn = vm_sysctl; 115 break; 116 case CTL_NET: 117 fn = net_sysctl; 118 break; 119 #ifdef notyet 120 case CTL_FS: 121 fn = fs_sysctl; 122 break; 123 #endif 124 case CTL_MACHDEP: 125 fn = cpu_sysctl; 126 break; 127 #ifdef DEBUG 128 case CTL_DEBUG: 129 fn = debug_sysctl; 130 break; 131 #endif 132 default: 133 return (EOPNOTSUPP); 134 } 135 136 if (SCARG(uap, oldlenp) && 137 (error = copyin(SCARG(uap, oldlenp), &oldlen, sizeof(oldlen)))) 138 return (error); 139 if (SCARG(uap, old) != NULL) { 140 if (!useracc(SCARG(uap, old), oldlen, B_WRITE)) 141 return (EFAULT); 142 while (memlock.sl_lock) { 143 memlock.sl_want = 1; 144 sleep((caddr_t)&memlock, PRIBIO+1); 145 memlock.sl_locked++; 146 } 147 memlock.sl_lock = 1; 148 if (dolock) 149 vslock(SCARG(uap, old), oldlen); 150 savelen = oldlen; 151 } 152 error = (*fn)(name + 1, SCARG(uap, namelen) - 1, SCARG(uap, old), 153 &oldlen, SCARG(uap, new), SCARG(uap, newlen), p); 154 if (SCARG(uap, old) != NULL) { 155 if (dolock) 156 vsunlock(SCARG(uap, old), savelen); 157 memlock.sl_lock = 0; 158 if (memlock.sl_want) { 159 memlock.sl_want = 0; 160 wakeup((caddr_t)&memlock); 161 } 162 } 163 if (error) 164 return (error); 165 if (SCARG(uap, oldlenp)) 166 error = copyout(&oldlen, SCARG(uap, oldlenp), sizeof(oldlen)); 167 *retval = oldlen; 168 return (0); 169 } 170 171 /* 172 * Attributes stored in the kernel. 173 */ 174 char hostname[MAXHOSTNAMELEN]; 175 int hostnamelen; 176 char domainname[MAXHOSTNAMELEN]; 177 int domainnamelen; 178 long hostid; 179 #ifdef INSECURE 180 int securelevel = -1; 181 #else 182 int securelevel; 183 #endif 184 185 /* 186 * kernel related system variables. 187 */ 188 int 189 kern_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 190 int *name; 191 u_int namelen; 192 void *oldp; 193 size_t *oldlenp; 194 void *newp; 195 size_t newlen; 196 struct proc *p; 197 { 198 int error, level, inthostid; 199 extern char ostype[], osrelease[], version[]; 200 201 /* all sysctl names at this level are terminal */ 202 if (namelen != 1 && !(name[0] == KERN_PROC || name[0] == KERN_PROF)) 203 return (ENOTDIR); /* overloaded */ 204 205 switch (name[0]) { 206 case KERN_OSTYPE: 207 return (sysctl_rdstring(oldp, oldlenp, newp, ostype)); 208 case KERN_OSRELEASE: 209 return (sysctl_rdstring(oldp, oldlenp, newp, osrelease)); 210 case KERN_OSREV: 211 return (sysctl_rdint(oldp, oldlenp, newp, BSD)); 212 case KERN_VERSION: 213 return (sysctl_rdstring(oldp, oldlenp, newp, version)); 214 case KERN_MAXVNODES: 215 return(sysctl_int(oldp, oldlenp, newp, newlen, &desiredvnodes)); 216 case KERN_MAXPROC: 217 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxproc)); 218 case KERN_MAXFILES: 219 return (sysctl_int(oldp, oldlenp, newp, newlen, &maxfiles)); 220 case KERN_ARGMAX: 221 return (sysctl_rdint(oldp, oldlenp, newp, ARG_MAX)); 222 case KERN_SECURELVL: 223 level = securelevel; 224 if ((error = sysctl_int(oldp, oldlenp, newp, newlen, &level)) || 225 newp == NULL) 226 return (error); 227 if (level < securelevel && p->p_pid != 1) 228 return (EPERM); 229 securelevel = level; 230 return (0); 231 case KERN_HOSTNAME: 232 error = sysctl_string(oldp, oldlenp, newp, newlen, 233 hostname, sizeof(hostname)); 234 if (newp && !error) 235 hostnamelen = newlen; 236 return (error); 237 case KERN_DOMAINNAME: 238 error = sysctl_string(oldp, oldlenp, newp, newlen, 239 domainname, sizeof(domainname)); 240 if (newp && !error) 241 domainnamelen = newlen; 242 return (error); 243 case KERN_HOSTID: 244 inthostid = hostid; /* XXX assumes sizeof long <= sizeof int */ 245 error = sysctl_int(oldp, oldlenp, newp, newlen, &inthostid); 246 hostid = inthostid; 247 return (error); 248 case KERN_CLOCKRATE: 249 return (sysctl_clockrate(oldp, oldlenp)); 250 case KERN_BOOTTIME: 251 return (sysctl_rdstruct(oldp, oldlenp, newp, &boottime, 252 sizeof(struct timeval))); 253 case KERN_VNODE: 254 return (sysctl_vnode(oldp, oldlenp)); 255 case KERN_PROC: 256 return (sysctl_doproc(name + 1, namelen - 1, oldp, oldlenp)); 257 case KERN_FILE: 258 return (sysctl_file(oldp, oldlenp)); 259 #ifdef GPROF 260 case KERN_PROF: 261 return (sysctl_doprof(name + 1, namelen - 1, oldp, oldlenp, 262 newp, newlen)); 263 #endif 264 case KERN_POSIX1: 265 return (sysctl_rdint(oldp, oldlenp, newp, _POSIX_VERSION)); 266 case KERN_NGROUPS: 267 return (sysctl_rdint(oldp, oldlenp, newp, NGROUPS_MAX)); 268 case KERN_JOB_CONTROL: 269 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 270 case KERN_SAVED_IDS: 271 #ifdef _POSIX_SAVED_IDS 272 return (sysctl_rdint(oldp, oldlenp, newp, 1)); 273 #else 274 return (sysctl_rdint(oldp, oldlenp, newp, 0)); 275 #endif 276 case KERN_MAXPARTITIONS: 277 return (sysctl_rdint(oldp, oldlenp, newp, MAXPARTITIONS)); 278 case KERN_RAWPARTITION: 279 return (sysctl_rdint(oldp, oldlenp, newp, RAW_PART)); 280 default: 281 return (EOPNOTSUPP); 282 } 283 /* NOTREACHED */ 284 } 285 286 /* 287 * hardware related system variables. 288 */ 289 int 290 hw_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 291 int *name; 292 u_int namelen; 293 void *oldp; 294 size_t *oldlenp; 295 void *newp; 296 size_t newlen; 297 struct proc *p; 298 { 299 extern char machine[], cpu_model[]; 300 301 /* all sysctl names at this level are terminal */ 302 if (namelen != 1) 303 return (ENOTDIR); /* overloaded */ 304 305 switch (name[0]) { 306 case HW_MACHINE: 307 return (sysctl_rdstring(oldp, oldlenp, newp, machine)); 308 case HW_MODEL: 309 return (sysctl_rdstring(oldp, oldlenp, newp, cpu_model)); 310 case HW_NCPU: 311 return (sysctl_rdint(oldp, oldlenp, newp, 1)); /* XXX */ 312 case HW_BYTEORDER: 313 return (sysctl_rdint(oldp, oldlenp, newp, BYTE_ORDER)); 314 case HW_PHYSMEM: 315 return (sysctl_rdint(oldp, oldlenp, newp, ctob(physmem))); 316 case HW_USERMEM: 317 return (sysctl_rdint(oldp, oldlenp, newp, 318 ctob(physmem - cnt.v_wire_count))); 319 case HW_PAGESIZE: 320 return (sysctl_rdint(oldp, oldlenp, newp, PAGE_SIZE)); 321 default: 322 return (EOPNOTSUPP); 323 } 324 /* NOTREACHED */ 325 } 326 327 #ifdef DEBUG 328 /* 329 * Debugging related system variables. 330 */ 331 struct ctldebug debug0, debug1, debug2, debug3, debug4; 332 struct ctldebug debug5, debug6, debug7, debug8, debug9; 333 struct ctldebug debug10, debug11, debug12, debug13, debug14; 334 struct ctldebug debug15, debug16, debug17, debug18, debug19; 335 static struct ctldebug *debugvars[CTL_DEBUG_MAXID] = { 336 &debug0, &debug1, &debug2, &debug3, &debug4, 337 &debug5, &debug6, &debug7, &debug8, &debug9, 338 &debug10, &debug11, &debug12, &debug13, &debug14, 339 &debug15, &debug16, &debug17, &debug18, &debug19, 340 }; 341 int 342 debug_sysctl(name, namelen, oldp, oldlenp, newp, newlen, p) 343 int *name; 344 u_int namelen; 345 void *oldp; 346 size_t *oldlenp; 347 void *newp; 348 size_t newlen; 349 struct proc *p; 350 { 351 struct ctldebug *cdp; 352 353 /* all sysctl names at this level are name and field */ 354 if (namelen != 2) 355 return (ENOTDIR); /* overloaded */ 356 cdp = debugvars[name[0]]; 357 if (cdp->debugname == 0) 358 return (EOPNOTSUPP); 359 switch (name[1]) { 360 case CTL_DEBUG_NAME: 361 return (sysctl_rdstring(oldp, oldlenp, newp, cdp->debugname)); 362 case CTL_DEBUG_VALUE: 363 return (sysctl_int(oldp, oldlenp, newp, newlen, cdp->debugvar)); 364 default: 365 return (EOPNOTSUPP); 366 } 367 /* NOTREACHED */ 368 } 369 #endif /* DEBUG */ 370 371 /* 372 * Validate parameters and get old / set new parameters 373 * for an integer-valued sysctl function. 374 */ 375 int 376 sysctl_int(oldp, oldlenp, newp, newlen, valp) 377 void *oldp; 378 size_t *oldlenp; 379 void *newp; 380 size_t newlen; 381 int *valp; 382 { 383 int error = 0; 384 385 if (oldp && *oldlenp < sizeof(int)) 386 return (ENOMEM); 387 if (newp && newlen != sizeof(int)) 388 return (EINVAL); 389 *oldlenp = sizeof(int); 390 if (oldp) 391 error = copyout(valp, oldp, sizeof(int)); 392 if (error == 0 && newp) 393 error = copyin(newp, valp, sizeof(int)); 394 return (error); 395 } 396 397 /* 398 * As above, but read-only. 399 */ 400 int 401 sysctl_rdint(oldp, oldlenp, newp, val) 402 void *oldp; 403 size_t *oldlenp; 404 void *newp; 405 int val; 406 { 407 int error = 0; 408 409 if (oldp && *oldlenp < sizeof(int)) 410 return (ENOMEM); 411 if (newp) 412 return (EPERM); 413 *oldlenp = sizeof(int); 414 if (oldp) 415 error = copyout((caddr_t)&val, oldp, sizeof(int)); 416 return (error); 417 } 418 419 /* 420 * Validate parameters and get old / set new parameters 421 * for a string-valued sysctl function. 422 */ 423 int 424 sysctl_string(oldp, oldlenp, newp, newlen, str, maxlen) 425 void *oldp; 426 size_t *oldlenp; 427 void *newp; 428 size_t newlen; 429 char *str; 430 int maxlen; 431 { 432 int len, error = 0; 433 434 len = strlen(str) + 1; 435 if (oldp && *oldlenp < len) 436 return (ENOMEM); 437 if (newp && newlen >= maxlen) 438 return (EINVAL); 439 if (oldp) { 440 *oldlenp = len; 441 error = copyout(str, oldp, len); 442 } 443 if (error == 0 && newp) { 444 error = copyin(newp, str, newlen); 445 str[newlen] = 0; 446 } 447 return (error); 448 } 449 450 /* 451 * As above, but read-only. 452 */ 453 int 454 sysctl_rdstring(oldp, oldlenp, newp, str) 455 void *oldp; 456 size_t *oldlenp; 457 void *newp; 458 char *str; 459 { 460 int len, error = 0; 461 462 len = strlen(str) + 1; 463 if (oldp && *oldlenp < len) 464 return (ENOMEM); 465 if (newp) 466 return (EPERM); 467 *oldlenp = len; 468 if (oldp) 469 error = copyout(str, oldp, len); 470 return (error); 471 } 472 473 /* 474 * Validate parameters and get old / set new parameters 475 * for a structure oriented sysctl function. 476 */ 477 int 478 sysctl_struct(oldp, oldlenp, newp, newlen, sp, len) 479 void *oldp; 480 size_t *oldlenp; 481 void *newp; 482 size_t newlen; 483 void *sp; 484 int len; 485 { 486 int error = 0; 487 488 if (oldp && *oldlenp < len) 489 return (ENOMEM); 490 if (newp && newlen > len) 491 return (EINVAL); 492 if (oldp) { 493 *oldlenp = len; 494 error = copyout(sp, oldp, len); 495 } 496 if (error == 0 && newp) 497 error = copyin(newp, sp, len); 498 return (error); 499 } 500 501 /* 502 * Validate parameters and get old parameters 503 * for a structure oriented sysctl function. 504 */ 505 int 506 sysctl_rdstruct(oldp, oldlenp, newp, sp, len) 507 void *oldp; 508 size_t *oldlenp; 509 void *newp, *sp; 510 int len; 511 { 512 int error = 0; 513 514 if (oldp && *oldlenp < len) 515 return (ENOMEM); 516 if (newp) 517 return (EPERM); 518 *oldlenp = len; 519 if (oldp) 520 error = copyout(sp, oldp, len); 521 return (error); 522 } 523 524 /* 525 * Get file structures. 526 */ 527 int 528 sysctl_file(where, sizep) 529 char *where; 530 size_t *sizep; 531 { 532 int buflen, error; 533 struct file *fp; 534 char *start = where; 535 536 buflen = *sizep; 537 if (where == NULL) { 538 /* 539 * overestimate by 10 files 540 */ 541 *sizep = sizeof(filehead) + (nfiles + 10) * sizeof(struct file); 542 return (0); 543 } 544 545 /* 546 * first copyout filehead 547 */ 548 if (buflen < sizeof(filehead)) { 549 *sizep = 0; 550 return (0); 551 } 552 error = copyout((caddr_t)&filehead, where, sizeof(filehead)); 553 if (error) 554 return (error); 555 buflen -= sizeof(filehead); 556 where += sizeof(filehead); 557 558 /* 559 * followed by an array of file structures 560 */ 561 for (fp = filehead.lh_first; fp != 0; fp = fp->f_list.le_next) { 562 if (buflen < sizeof(struct file)) { 563 *sizep = where - start; 564 return (ENOMEM); 565 } 566 error = copyout((caddr_t)fp, where, sizeof (struct file)); 567 if (error) 568 return (error); 569 buflen -= sizeof(struct file); 570 where += sizeof(struct file); 571 } 572 *sizep = where - start; 573 return (0); 574 } 575 576 /* 577 * try over estimating by 5 procs 578 */ 579 #define KERN_PROCSLOP (5 * sizeof (struct kinfo_proc)) 580 581 int 582 sysctl_doproc(name, namelen, where, sizep) 583 int *name; 584 u_int namelen; 585 char *where; 586 size_t *sizep; 587 { 588 register struct proc *p; 589 register struct kinfo_proc *dp = (struct kinfo_proc *)where; 590 register int needed = 0; 591 int buflen = where != NULL ? *sizep : 0; 592 int doingzomb; 593 struct eproc eproc; 594 int error = 0; 595 596 if (namelen != 2 && !(namelen == 1 && name[0] == KERN_PROC_ALL)) 597 return (EINVAL); 598 p = allproc.lh_first; 599 doingzomb = 0; 600 again: 601 for (; p != 0; p = p->p_list.le_next) { 602 /* 603 * Skip embryonic processes. 604 */ 605 if (p->p_stat == SIDL) 606 continue; 607 /* 608 * TODO - make more efficient (see notes below). 609 * do by session. 610 */ 611 switch (name[0]) { 612 613 case KERN_PROC_PID: 614 /* could do this with just a lookup */ 615 if (p->p_pid != (pid_t)name[1]) 616 continue; 617 break; 618 619 case KERN_PROC_PGRP: 620 /* could do this by traversing pgrp */ 621 if (p->p_pgrp->pg_id != (pid_t)name[1]) 622 continue; 623 break; 624 625 case KERN_PROC_TTY: 626 if ((p->p_flag & P_CONTROLT) == 0 || 627 p->p_session->s_ttyp == NULL || 628 p->p_session->s_ttyp->t_dev != (dev_t)name[1]) 629 continue; 630 break; 631 632 case KERN_PROC_UID: 633 if (p->p_ucred->cr_uid != (uid_t)name[1]) 634 continue; 635 break; 636 637 case KERN_PROC_RUID: 638 if (p->p_cred->p_ruid != (uid_t)name[1]) 639 continue; 640 break; 641 } 642 if (buflen >= sizeof(struct kinfo_proc)) { 643 fill_eproc(p, &eproc); 644 error = copyout((caddr_t)p, &dp->kp_proc, 645 sizeof(struct proc)); 646 if (error) 647 return (error); 648 error = copyout((caddr_t)&eproc, &dp->kp_eproc, 649 sizeof(eproc)); 650 if (error) 651 return (error); 652 dp++; 653 buflen -= sizeof(struct kinfo_proc); 654 } 655 needed += sizeof(struct kinfo_proc); 656 } 657 if (doingzomb == 0) { 658 p = zombproc.lh_first; 659 doingzomb++; 660 goto again; 661 } 662 if (where != NULL) { 663 *sizep = (caddr_t)dp - where; 664 if (needed > *sizep) 665 return (ENOMEM); 666 } else { 667 needed += KERN_PROCSLOP; 668 *sizep = needed; 669 } 670 return (0); 671 } 672 673 /* 674 * Fill in an eproc structure for the specified process. 675 */ 676 void 677 fill_eproc(p, ep) 678 register struct proc *p; 679 register struct eproc *ep; 680 { 681 register struct tty *tp; 682 683 ep->e_paddr = p; 684 ep->e_sess = p->p_pgrp->pg_session; 685 ep->e_pcred = *p->p_cred; 686 ep->e_ucred = *p->p_ucred; 687 if (p->p_stat == SIDL || p->p_stat == SZOMB) { 688 ep->e_vm.vm_rssize = 0; 689 ep->e_vm.vm_tsize = 0; 690 ep->e_vm.vm_dsize = 0; 691 ep->e_vm.vm_ssize = 0; 692 /* ep->e_vm.vm_pmap = XXX; */ 693 } else { 694 register struct vmspace *vm = p->p_vmspace; 695 696 #ifdef pmap_resident_count 697 ep->e_vm.vm_rssize = pmap_resident_count(&vm->vm_pmap); /*XXX*/ 698 #else 699 ep->e_vm.vm_rssize = vm->vm_rssize; 700 #endif 701 ep->e_vm.vm_tsize = vm->vm_tsize; 702 ep->e_vm.vm_dsize = vm->vm_dsize; 703 ep->e_vm.vm_ssize = vm->vm_ssize; 704 ep->e_vm.vm_pmap = vm->vm_pmap; 705 } 706 if (p->p_pptr) 707 ep->e_ppid = p->p_pptr->p_pid; 708 else 709 ep->e_ppid = 0; 710 ep->e_pgid = p->p_pgrp->pg_id; 711 ep->e_jobc = p->p_pgrp->pg_jobc; 712 if ((p->p_flag & P_CONTROLT) && 713 (tp = ep->e_sess->s_ttyp)) { 714 ep->e_tdev = tp->t_dev; 715 ep->e_tpgid = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 716 ep->e_tsess = tp->t_session; 717 } else 718 ep->e_tdev = NODEV; 719 ep->e_flag = ep->e_sess->s_ttyvp ? EPROC_CTTY : 0; 720 if (SESS_LEADER(p)) 721 ep->e_flag |= EPROC_SLEADER; 722 if (p->p_wmesg) 723 strncpy(ep->e_wmesg, p->p_wmesg, WMESGLEN); 724 ep->e_xsize = ep->e_xrssize = 0; 725 ep->e_xccount = ep->e_xswrss = 0; 726 } 727 728
Indexes created Tue Sep 30 07:10:03 GMT 2025