| sys_generic.c (3485) | sys_generic.c (3568) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 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 * @(#)sys_generic.c 8.5 (Berkeley) 1/21/94 | 1/* 2 * Copyright (c) 1982, 1986, 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 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 * @(#)sys_generic.c 8.5 (Berkeley) 1/21/94 |
| 39 * $Id: sys_generic.c,v 1.7 1994/10/02 17:35:24 phk Exp $ | 39 * $Id: sys_generic.c,v 1.1 1994/10/13 12:13:00 sos Exp sos $ |
| 40 */ 41 42#include <sys/param.h> 43#include <sys/systm.h> 44#include <sys/filedesc.h> 45#include <sys/ioctl.h> 46#include <sys/file.h> 47#include <sys/proc.h> --- 4 unchanged lines hidden (view full) --- 52#include <sys/uio.h> 53#include <sys/kernel.h> 54#include <sys/stat.h> 55#include <sys/malloc.h> 56#ifdef KTRACE 57#include <sys/ktrace.h> 58#endif 59#include <vm/vm.h> | 40 */ 41 42#include <sys/param.h> 43#include <sys/systm.h> 44#include <sys/filedesc.h> 45#include <sys/ioctl.h> 46#include <sys/file.h> 47#include <sys/proc.h> --- 4 unchanged lines hidden (view full) --- 52#include <sys/uio.h> 53#include <sys/kernel.h> 54#include <sys/stat.h> 55#include <sys/malloc.h> 56#ifdef KTRACE 57#include <sys/ktrace.h> 58#endif 59#include <vm/vm.h> |
| 60#include <i386/ibcs2/ibcs2.h> |
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| 60 61int selscan __P((struct proc *, fd_set *, fd_set *, int, int *)); 62 63/* 64 * Read system call. 65 */ 66struct read_args { 67 int fd; --- 334 unchanged lines hidden (view full) --- 402 /* 403 * Interpret high order word to find amount of data to be 404 * copied to/from the user's address space. 405 */ 406 size = IOCPARM_LEN(com); 407 if (size > IOCPARM_MAX) 408 return (ENOTTY); 409 memp = NULL; | 61 62int selscan __P((struct proc *, fd_set *, fd_set *, int, int *)); 63 64/* 65 * Read system call. 66 */ 67struct read_args { 68 int fd; --- 334 unchanged lines hidden (view full) --- 403 /* 404 * Interpret high order word to find amount of data to be 405 * copied to/from the user's address space. 406 */ 407 size = IOCPARM_LEN(com); 408 if (size > IOCPARM_MAX) 409 return (ENOTTY); 410 memp = NULL; |
| 411#ifdef COMPAT_IBCS2 412 if (size + IBCS2_RETVAL_SIZE > sizeof (stkbuf)) { 413 memp = (caddr_t)malloc((u_long)size + IBCS2_RETVAL_SIZE, 414 M_IOCTLOPS, M_WAITOK); 415 data = memp; 416 } else 417 data = stkbuf; 418 *(int *)(data - IBCS2_RETVAL_SIZE) = IBCS2_MAGIC_IN; 419 *(int *)(data - (IBCS2_RETVAL_SIZE - sizeof(int))) = 0; 420 *(int *)(data - (IBCS2_RETVAL_SIZE - 2*sizeof(int))) = 0; 421#else |
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| 410 if (size > sizeof (stkbuf)) { 411 memp = (caddr_t)malloc((u_long)size, M_IOCTLOPS, M_WAITOK); 412 data = memp; 413 } else 414 data = stkbuf; | 422 if (size > sizeof (stkbuf)) { 423 memp = (caddr_t)malloc((u_long)size, M_IOCTLOPS, M_WAITOK); 424 data = memp; 425 } else 426 data = stkbuf; |
| 427#endif |
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| 415 if (com&IOC_IN) { 416 if (size) { 417 error = copyin(uap->data, data, (u_int)size); 418 if (error) { 419 if (memp) 420 free(memp, M_IOCTLOPS); 421 return (error); 422 } 423 } else 424 *(caddr_t *)data = uap->data; 425 } else if ((com&IOC_OUT) && size) 426 /* 427 * Zero the buffer so the user always 428 * gets back something deterministic. 429 */ 430 bzero(data, size); 431 else if (com&IOC_VOID) 432 *(caddr_t *)data = uap->data; | 428 if (com&IOC_IN) { 429 if (size) { 430 error = copyin(uap->data, data, (u_int)size); 431 if (error) { 432 if (memp) 433 free(memp, M_IOCTLOPS); 434 return (error); 435 } 436 } else 437 *(caddr_t *)data = uap->data; 438 } else if ((com&IOC_OUT) && size) 439 /* 440 * Zero the buffer so the user always 441 * gets back something deterministic. 442 */ 443 bzero(data, size); 444 else if (com&IOC_VOID) 445 *(caddr_t *)data = uap->data; |
| 446#ifdef COMPAT_IBCS2 447 else if (com) 448 /* 449 * Pick up such things as NIOCxx. 450 * Any copyouts will have to be done prior 451 * to return by their servicing code. 452 */ 453 *(caddr_t *)data = uap->data; 454#endif |
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| 433 434 switch (com) { 435 436 case FIONBIO: 437 if ((tmp = *(int *)data)) 438 fp->f_flag |= FNONBLOCK; 439 else 440 fp->f_flag &= ~FNONBLOCK; --- 44 unchanged lines hidden (view full) --- 485 /* 486 * Copy any data to user, size was 487 * already set and checked above. 488 */ 489 if (error == 0 && (com&IOC_OUT) && size) 490 error = copyout(data, uap->data, (u_int)size); 491 break; 492 } | 455 456 switch (com) { 457 458 case FIONBIO: 459 if ((tmp = *(int *)data)) 460 fp->f_flag |= FNONBLOCK; 461 else 462 fp->f_flag &= ~FNONBLOCK; --- 44 unchanged lines hidden (view full) --- 507 /* 508 * Copy any data to user, size was 509 * already set and checked above. 510 */ 511 if (error == 0 && (com&IOC_OUT) && size) 512 error = copyout(data, uap->data, (u_int)size); 513 break; 514 } |
| 515#ifdef COMPAT_IBCS2 516 if ((*(int *)(data - IBCS2_RETVAL_SIZE)) == IBCS2_MAGIC_OUT) { 517 retval[0] = *(int *)(data-(IBCS2_RETVAL_SIZE - sizeof(int))); 518 retval[1] = *(int *)(data-(IBCS2_RETVAL_SIZE - 2*sizeof(int))); 519 } 520#endif |
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| 493 if (memp) 494 free(memp, M_IOCTLOPS); 495 return (error); 496} 497 498int selwait, nselcoll; 499 500/* --- 194 unchanged lines hidden --- | 521 if (memp) 522 free(memp, M_IOCTLOPS); 523 return (error); 524} 525 526int selwait, nselcoll; 527 528/* --- 194 unchanged lines hidden --- |