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1.1 ! root 1: /* ! 2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. ! 3: * ! 4: * @APPLE_LICENSE_HEADER_START@ ! 5: * ! 6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights ! 7: * Reserved. This file contains Original Code and/or Modifications of ! 8: * Original Code as defined in and that are subject to the Apple Public ! 9: * Source License Version 1.1 (the "License"). You may not use this file ! 10: * except in compliance with the License. Please obtain a copy of the ! 11: * License at http://www.apple.com/publicsource and read it before using ! 12: * this file. ! 13: * ! 14: * The Original Code and all software distributed under the License are ! 15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER ! 16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, ! 17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, ! 18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the ! 19: * License for the specific language governing rights and limitations ! 20: * under the License. ! 21: * ! 22: * @APPLE_LICENSE_HEADER_END@ ! 23: */ ! 24: ! 25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ ! 26: /* ! 27: * Copyright (c) 1990, 1993, 1995 ! 28: * The Regents of the University of California. All rights reserved. ! 29: * ! 30: * Redistribution and use in source and binary forms, with or without ! 31: * modification, are permitted provided that the following conditions ! 32: * are met: ! 33: * 1. Redistributions of source code must retain the above copyright ! 34: * notice, this list of conditions and the following disclaimer. ! 35: * 2. Redistributions in binary form must reproduce the above copyright ! 36: * notice, this list of conditions and the following disclaimer in the ! 37: * documentation and/or other materials provided with the distribution. ! 38: * 3. All advertising materials mentioning features or use of this software ! 39: * must display the following acknowledgement: ! 40: * This product includes software developed by the University of ! 41: * California, Berkeley and its contributors. ! 42: * 4. Neither the name of the University nor the names of its contributors ! 43: * may be used to endorse or promote products derived from this software ! 44: * without specific prior written permission. ! 45: * ! 46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ! 47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ! 48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ! 49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE ! 50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ! 51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS ! 52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ! 53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ! 54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY ! 55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF ! 56: * SUCH DAMAGE. ! 57: * ! 58: * @(#)fifo_vnops.c 8.4 (Berkeley) 8/10/94 ! 59: */ ! 60: ! 61: #include <sys/param.h> ! 62: #include <sys/proc.h> ! 63: #include <sys/time.h> ! 64: #include <sys/namei.h> ! 65: #include <sys/vnode.h> ! 66: #include <sys/socket.h> ! 67: #include <sys/socketvar.h> ! 68: #include <sys/stat.h> ! 69: #include <sys/systm.h> ! 70: #include <sys/ioctl.h> ! 71: #include <sys/file.h> ! 72: #include <sys/errno.h> ! 73: #include <sys/malloc.h> ! 74: #include <miscfs/fifofs/fifo.h> ! 75: ! 76: /* ! 77: * This structure is associated with the FIFO vnode and stores ! 78: * the state associated with the FIFO. ! 79: */ ! 80: struct fifoinfo { ! 81: struct socket *fi_readsock; ! 82: struct socket *fi_writesock; ! 83: long fi_readers; ! 84: long fi_writers; ! 85: }; ! 86: ! 87: int (**fifo_vnodeop_p)(); ! 88: struct vnodeopv_entry_desc fifo_vnodeop_entries[] = { ! 89: { &vop_default_desc, vn_default_error }, ! 90: { &vop_lookup_desc, fifo_lookup }, /* lookup */ ! 91: { &vop_create_desc, fifo_create }, /* create */ ! 92: { &vop_mknod_desc, fifo_mknod }, /* mknod */ ! 93: { &vop_open_desc, fifo_open }, /* open */ ! 94: { &vop_close_desc, fifo_close }, /* close */ ! 95: { &vop_access_desc, fifo_access }, /* access */ ! 96: { &vop_getattr_desc, fifo_getattr }, /* getattr */ ! 97: { &vop_setattr_desc, fifo_setattr }, /* setattr */ ! 98: { &vop_read_desc, fifo_read }, /* read */ ! 99: { &vop_write_desc, fifo_write }, /* write */ ! 100: { &vop_lease_desc, fifo_lease_check }, /* lease */ ! 101: { &vop_ioctl_desc, fifo_ioctl }, /* ioctl */ ! 102: { &vop_select_desc, fifo_select }, /* select */ ! 103: { &vop_revoke_desc, fifo_revoke }, /* revoke */ ! 104: { &vop_mmap_desc, fifo_mmap }, /* mmap */ ! 105: { &vop_fsync_desc, fifo_fsync }, /* fsync */ ! 106: { &vop_seek_desc, fifo_seek }, /* seek */ ! 107: { &vop_remove_desc, fifo_remove }, /* remove */ ! 108: { &vop_link_desc, fifo_link }, /* link */ ! 109: { &vop_rename_desc, fifo_rename }, /* rename */ ! 110: { &vop_mkdir_desc, fifo_mkdir }, /* mkdir */ ! 111: { &vop_rmdir_desc, fifo_rmdir }, /* rmdir */ ! 112: { &vop_symlink_desc, fifo_symlink }, /* symlink */ ! 113: { &vop_readdir_desc, fifo_readdir }, /* readdir */ ! 114: { &vop_readlink_desc, fifo_readlink }, /* readlink */ ! 115: { &vop_abortop_desc, fifo_abortop }, /* abortop */ ! 116: { &vop_inactive_desc, fifo_inactive }, /* inactive */ ! 117: { &vop_reclaim_desc, fifo_reclaim }, /* reclaim */ ! 118: { &vop_lock_desc, fifo_lock }, /* lock */ ! 119: { &vop_unlock_desc, fifo_unlock }, /* unlock */ ! 120: { &vop_bmap_desc, fifo_bmap }, /* bmap */ ! 121: { &vop_strategy_desc, fifo_strategy }, /* strategy */ ! 122: { &vop_print_desc, fifo_print }, /* print */ ! 123: { &vop_islocked_desc, fifo_islocked }, /* islocked */ ! 124: { &vop_pathconf_desc, fifo_pathconf }, /* pathconf */ ! 125: { &vop_advlock_desc, fifo_advlock }, /* advlock */ ! 126: { &vop_blkatoff_desc, fifo_blkatoff }, /* blkatoff */ ! 127: { &vop_valloc_desc, fifo_valloc }, /* valloc */ ! 128: { &vop_vfree_desc, fifo_vfree }, /* vfree */ ! 129: { &vop_truncate_desc, fifo_truncate }, /* truncate */ ! 130: { &vop_update_desc, fifo_update }, /* update */ ! 131: { &vop_bwrite_desc, fifo_bwrite }, /* bwrite */ ! 132: { &vop_pagein_desc, fifo_pagein }, /* Pagein */ ! 133: { &vop_pageout_desc, fifo_pageout }, /* Pageout */ ! 134: { (struct vnodeop_desc*)NULL, (int(*)())NULL } ! 135: }; ! 136: struct vnodeopv_desc fifo_vnodeop_opv_desc = ! 137: { &fifo_vnodeop_p, fifo_vnodeop_entries }; ! 138: ! 139: /* ! 140: * Trivial lookup routine that always fails. ! 141: */ ! 142: /* ARGSUSED */ ! 143: fifo_lookup(ap) ! 144: struct vop_lookup_args /* { ! 145: struct vnode * a_dvp; ! 146: struct vnode ** a_vpp; ! 147: struct componentname * a_cnp; ! 148: } */ *ap; ! 149: { ! 150: ! 151: *ap->a_vpp = NULL; ! 152: return (ENOTDIR); ! 153: } ! 154: ! 155: /* ! 156: * Open called to set up a new instance of a fifo or ! 157: * to find an active instance of a fifo. ! 158: */ ! 159: /* ARGSUSED */ ! 160: fifo_open(ap) ! 161: struct vop_open_args /* { ! 162: struct vnode *a_vp; ! 163: int a_mode; ! 164: struct ucred *a_cred; ! 165: struct proc *a_p; ! 166: } */ *ap; ! 167: { ! 168: struct vnode *vp = ap->a_vp; ! 169: struct fifoinfo *fip; ! 170: struct proc *p = ap->a_p; ! 171: struct socket *rso, *wso; ! 172: int error; ! 173: ! 174: if ((fip = vp->v_fifoinfo) == NULL) { ! 175: MALLOC_ZONE(fip, struct fifoinfo *, ! 176: sizeof(*fip), M_VNODE, M_WAITOK); ! 177: vp->v_fifoinfo = fip; ! 178: if (error = socreate(AF_LOCAL, &rso, SOCK_STREAM, 0)) { ! 179: _FREE_ZONE(fip, sizeof *fip, M_VNODE); ! 180: vp->v_fifoinfo = NULL; ! 181: return (error); ! 182: } ! 183: fip->fi_readsock = rso; ! 184: if (error = socreate(AF_LOCAL, &wso, SOCK_STREAM, 0)) { ! 185: (void)soclose(rso); ! 186: _FREE_ZONE(fip, sizeof *fip, M_VNODE); ! 187: vp->v_fifoinfo = NULL; ! 188: return (error); ! 189: } ! 190: fip->fi_writesock = wso; ! 191: if (error = unp_connect2(wso, rso)) { ! 192: (void)soclose(wso); ! 193: (void)soclose(rso); ! 194: _FREE_ZONE(fip, sizeof *fip, M_VNODE); ! 195: vp->v_fifoinfo = NULL; ! 196: return (error); ! 197: } ! 198: fip->fi_readers = fip->fi_writers = 0; ! 199: wso->so_state |= SS_CANTRCVMORE; ! 200: wso->so_snd.sb_lowat = PIPE_BUF; ! 201: rso->so_state |= SS_CANTSENDMORE; ! 202: } ! 203: if (ap->a_mode & FREAD) { ! 204: fip->fi_readers++; ! 205: if (fip->fi_readers == 1) { ! 206: fip->fi_writesock->so_state &= ~SS_CANTSENDMORE; ! 207: if (fip->fi_writers > 0) ! 208: wakeup((caddr_t)&fip->fi_writers); ! 209: } ! 210: } ! 211: if (ap->a_mode & FWRITE) { ! 212: fip->fi_writers++; ! 213: if (fip->fi_writers == 1) { ! 214: fip->fi_readsock->so_state &= ~SS_CANTRCVMORE; ! 215: if (fip->fi_readers > 0) ! 216: wakeup((caddr_t)&fip->fi_readers); ! 217: } ! 218: } ! 219: if ((ap->a_mode & FREAD) && (ap->a_mode & O_NONBLOCK) == 0) { ! 220: if (fip->fi_writers == 0) { ! 221: VOP_UNLOCK(vp, 0, p); ! 222: error = tsleep((caddr_t)&fip->fi_readers, ! 223: PCATCH | PSOCK, "fifoor", 0); ! 224: vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p); ! 225: if (error) ! 226: goto bad; ! 227: if (fip->fi_readers == 1) { ! 228: if (fip->fi_writers > 0) ! 229: wakeup((caddr_t)&fip->fi_writers); ! 230: } ! 231: } ! 232: } ! 233: if (ap->a_mode & FWRITE) { ! 234: if (ap->a_mode & O_NONBLOCK) { ! 235: if (fip->fi_readers == 0) { ! 236: error = ENXIO; ! 237: goto bad; ! 238: } ! 239: } else { ! 240: if (fip->fi_readers == 0) { ! 241: VOP_UNLOCK(vp, 0, p); ! 242: error = tsleep((caddr_t)&fip->fi_writers, ! 243: PCATCH | PSOCK, "fifoow", 0); ! 244: vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p); ! 245: if (error) ! 246: goto bad; ! 247: if (fip->fi_writers == 1) { ! 248: if (fip->fi_readers > 0) ! 249: wakeup((caddr_t)&fip->fi_readers); ! 250: } ! 251: } ! 252: } ! 253: } ! 254: return (0); ! 255: bad: ! 256: if (error) ! 257: VOP_CLOSE(vp, ap->a_mode, ap->a_cred, p); ! 258: return (error); ! 259: } ! 260: ! 261: /* ! 262: * Vnode op for read ! 263: */ ! 264: /* ARGSUSED */ ! 265: fifo_read(ap) ! 266: struct vop_read_args /* { ! 267: struct vnode *a_vp; ! 268: struct uio *a_uio; ! 269: int a_ioflag; ! 270: struct ucred *a_cred; ! 271: } */ *ap; ! 272: { ! 273: struct uio *uio = ap->a_uio; ! 274: struct socket *rso = ap->a_vp->v_fifoinfo->fi_readsock; ! 275: struct proc *p = uio->uio_procp; ! 276: int error, startresid; ! 277: ! 278: #if DIAGNOSTIC ! 279: if (uio->uio_rw != UIO_READ) ! 280: panic("fifo_read mode"); ! 281: #endif ! 282: if (uio->uio_resid == 0) ! 283: return (0); ! 284: if (ap->a_ioflag & IO_NDELAY) ! 285: rso->so_state |= SS_NBIO; ! 286: startresid = uio->uio_resid; ! 287: VOP_UNLOCK(ap->a_vp, 0, p); ! 288: error = soreceive(rso, (struct mbuf **)0, uio, (struct mbuf **)0, ! 289: (struct mbuf **)0, (int *)0); ! 290: vn_lock(ap->a_vp, LK_EXCLUSIVE | LK_RETRY, p); ! 291: /* ! 292: * Clear EOF indication after first such return. ! 293: */ ! 294: if (uio->uio_resid == startresid) ! 295: rso->so_state &= ~SS_CANTRCVMORE; ! 296: if (ap->a_ioflag & IO_NDELAY) ! 297: rso->so_state &= ~SS_NBIO; ! 298: return (error); ! 299: } ! 300: ! 301: /* ! 302: * Vnode op for write ! 303: */ ! 304: /* ARGSUSED */ ! 305: fifo_write(ap) ! 306: struct vop_write_args /* { ! 307: struct vnode *a_vp; ! 308: struct uio *a_uio; ! 309: int a_ioflag; ! 310: struct ucred *a_cred; ! 311: } */ *ap; ! 312: { ! 313: struct socket *wso = ap->a_vp->v_fifoinfo->fi_writesock; ! 314: struct proc *p = ap->a_uio->uio_procp; ! 315: int error; ! 316: ! 317: #if DIAGNOSTIC ! 318: if (ap->a_uio->uio_rw != UIO_WRITE) ! 319: panic("fifo_write mode"); ! 320: #endif ! 321: if (ap->a_ioflag & IO_NDELAY) ! 322: wso->so_state |= SS_NBIO; ! 323: VOP_UNLOCK(ap->a_vp, 0, p); ! 324: error = sosend(wso, (struct mbuf *)0, ap->a_uio, 0, (struct mbuf *)0, 0); ! 325: vn_lock(ap->a_vp, LK_EXCLUSIVE | LK_RETRY, p); ! 326: if (ap->a_ioflag & IO_NDELAY) ! 327: wso->so_state &= ~SS_NBIO; ! 328: return (error); ! 329: } ! 330: ! 331: /* ! 332: * Device ioctl operation. ! 333: */ ! 334: /* ARGSUSED */ ! 335: fifo_ioctl(ap) ! 336: struct vop_ioctl_args /* { ! 337: struct vnode *a_vp; ! 338: int a_command; ! 339: caddr_t a_data; ! 340: int a_fflag; ! 341: struct ucred *a_cred; ! 342: struct proc *a_p; ! 343: } */ *ap; ! 344: { ! 345: struct file filetmp; ! 346: int error; ! 347: ! 348: if (ap->a_command == FIONBIO) ! 349: return (0); ! 350: if (ap->a_fflag & FREAD) { ! 351: filetmp.f_data = (caddr_t)ap->a_vp->v_fifoinfo->fi_readsock; ! 352: error = soo_ioctl(&filetmp, ap->a_command, ap->a_data, ap->a_p); ! 353: if (error) ! 354: return (error); ! 355: } ! 356: if (ap->a_fflag & FWRITE) { ! 357: filetmp.f_data = (caddr_t)ap->a_vp->v_fifoinfo->fi_writesock; ! 358: error = soo_ioctl(&filetmp, ap->a_command, ap->a_data, ap->a_p); ! 359: if (error) ! 360: return (error); ! 361: } ! 362: return (0); ! 363: } ! 364: ! 365: /* ARGSUSED */ ! 366: fifo_select(ap) ! 367: struct vop_select_args /* { ! 368: struct vnode *a_vp; ! 369: int a_which; ! 370: int a_fflags; ! 371: struct ucred *a_cred; ! 372: struct proc *a_p; ! 373: } */ *ap; ! 374: { ! 375: struct file filetmp; ! 376: int ready; ! 377: ! 378: if (ap->a_fflags & FREAD) { ! 379: filetmp.f_data = (caddr_t)ap->a_vp->v_fifoinfo->fi_readsock; ! 380: ready = soo_select(&filetmp, ap->a_which, ap->a_p); ! 381: if (ready) ! 382: return (ready); ! 383: } ! 384: if (ap->a_fflags & FWRITE) { ! 385: filetmp.f_data = (caddr_t)ap->a_vp->v_fifoinfo->fi_writesock; ! 386: ready = soo_select(&filetmp, ap->a_which, ap->a_p); ! 387: if (ready) ! 388: return (ready); ! 389: } ! 390: return (0); ! 391: } ! 392: ! 393: int ! 394: fifo_inactive(ap) ! 395: struct vop_inactive_args /* { ! 396: struct vnode *a_vp; ! 397: struct proc *a_p; ! 398: } */ *ap; ! 399: { ! 400: ! 401: VOP_UNLOCK(ap->a_vp, 0, ap->a_p); ! 402: return (0); ! 403: } ! 404: ! 405: /* ! 406: * This is a noop, simply returning what one has been given. ! 407: */ ! 408: fifo_bmap(ap) ! 409: struct vop_bmap_args /* { ! 410: struct vnode *a_vp; ! 411: daddr_t a_bn; ! 412: struct vnode **a_vpp; ! 413: daddr_t *a_bnp; ! 414: int *a_runp; ! 415: } */ *ap; ! 416: { ! 417: ! 418: if (ap->a_vpp != NULL) ! 419: *ap->a_vpp = ap->a_vp; ! 420: if (ap->a_bnp != NULL) ! 421: *ap->a_bnp = ap->a_bn; ! 422: if (ap->a_runp != NULL) ! 423: *ap->a_runp = 0; ! 424: return (0); ! 425: } ! 426: ! 427: /* ! 428: * Device close routine ! 429: */ ! 430: /* ARGSUSED */ ! 431: fifo_close(ap) ! 432: struct vop_close_args /* { ! 433: struct vnode *a_vp; ! 434: int a_fflag; ! 435: struct ucred *a_cred; ! 436: struct proc *a_p; ! 437: } */ *ap; ! 438: { ! 439: register struct vnode *vp = ap->a_vp; ! 440: register struct fifoinfo *fip = vp->v_fifoinfo; ! 441: int error1, error2; ! 442: ! 443: if (ap->a_fflag & FREAD) { ! 444: fip->fi_readers--; ! 445: if (fip->fi_readers == 0) ! 446: socantsendmore(fip->fi_writesock); ! 447: } ! 448: if (ap->a_fflag & FWRITE) { ! 449: fip->fi_writers--; ! 450: if (fip->fi_writers == 0) ! 451: socantrcvmore(fip->fi_readsock); ! 452: } ! 453: if (vp->v_usecount > 1) ! 454: return (0); ! 455: error1 = soclose(fip->fi_readsock); ! 456: error2 = soclose(fip->fi_writesock); ! 457: FREE_ZONE(fip, sizeof *fip, M_VNODE); ! 458: vp->v_fifoinfo = NULL; ! 459: if (error1) ! 460: return (error1); ! 461: return (error2); ! 462: } ! 463: ! 464: /* ! 465: * Print out the contents of a fifo vnode. ! 466: */ ! 467: fifo_print(ap) ! 468: struct vop_print_args /* { ! 469: struct vnode *a_vp; ! 470: } */ *ap; ! 471: { ! 472: ! 473: printf("tag VT_NON"); ! 474: fifo_printinfo(ap->a_vp); ! 475: printf("\n"); ! 476: } ! 477: ! 478: /* ! 479: * Print out internal contents of a fifo vnode. ! 480: */ ! 481: fifo_printinfo(vp) ! 482: struct vnode *vp; ! 483: { ! 484: register struct fifoinfo *fip = vp->v_fifoinfo; ! 485: ! 486: printf(", fifo with %d readers and %d writers", ! 487: fip->fi_readers, fip->fi_writers); ! 488: } ! 489: ! 490: /* ! 491: * Return POSIX pathconf information applicable to fifo's. ! 492: */ ! 493: fifo_pathconf(ap) ! 494: struct vop_pathconf_args /* { ! 495: struct vnode *a_vp; ! 496: int a_name; ! 497: int *a_retval; ! 498: } */ *ap; ! 499: { ! 500: ! 501: switch (ap->a_name) { ! 502: case _PC_LINK_MAX: ! 503: *ap->a_retval = LINK_MAX; ! 504: return (0); ! 505: case _PC_PIPE_BUF: ! 506: *ap->a_retval = PIPE_BUF; ! 507: return (0); ! 508: case _PC_CHOWN_RESTRICTED: ! 509: *ap->a_retval = 1; ! 510: return (0); ! 511: default: ! 512: return (EINVAL); ! 513: } ! 514: /* NOTREACHED */ ! 515: } ! 516: ! 517: /* ! 518: * Fifo failed operation ! 519: */ ! 520: fifo_ebadf() ! 521: { ! 522: ! 523: return (EBADF); ! 524: } ! 525: ! 526: /* ! 527: * Fifo advisory byte-level locks. ! 528: */ ! 529: /* ARGSUSED */ ! 530: fifo_advlock(ap) ! 531: struct vop_advlock_args /* { ! 532: struct vnode *a_vp; ! 533: caddr_t a_id; ! 534: int a_op; ! 535: struct flock *a_fl; ! 536: int a_flags; ! 537: } */ *ap; ! 538: { ! 539: ! 540: return (EOPNOTSUPP); ! 541: } ! 542: ! 543: /* ! 544: * Fifo bad operation ! 545: */ ! 546: fifo_badop() ! 547: { ! 548: ! 549: panic("fifo_badop called"); ! 550: /* NOTREACHED */ ! 551: } ! 552: /* Pagein */ ! 553: fifo_pagein(ap) ! 554: struct vop_pagein_args /* { ! 555: struct vnode *a_vp; ! 556: struct uio *a_uio; ! 557: int a_ioflag; ! 558: struct ucred *a_cred; ! 559: } */ *ap; ! 560: { ! 561: /* pass thru to read */ ! 562: return (VOP_READ(ap->a_vp, ap->a_uio, ap->a_ioflag, ap->a_cred)); ! 563: } ! 564: ! 565: /* Pageout */ ! 566: fifo_pageout(ap) ! 567: struct vop_pageout_args /* { ! 568: struct vnode *a_vp; ! 569: struct uio *a_uio; ! 570: int a_ioflag; ! 571: struct ucred *a_cred; ! 572: } */ *ap; ! 573: { ! 574: /* pass thru to write */ ! 575: return (VOP_WRITE(ap->a_vp, ap->a_uio, ap->a_ioflag, ap->a_cred)); ! 576: }
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.