| kern_descrip.c (47829) | kern_descrip.c (49413) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1989, 1991, 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 * @(#)kern_descrip.c 8.6 (Berkeley) 4/19/94 | 1/* 2 * Copyright (c) 1982, 1986, 1989, 1991, 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 * @(#)kern_descrip.c 8.6 (Berkeley) 4/19/94 |
| 39 * $Id: kern_descrip.c,v 1.63 1999/05/31 11:27:30 phk Exp $ | 39 * $Id: kern_descrip.c,v 1.64 1999/06/07 20:37:27 msmith Exp $ |
| 40 */ 41 42#include "opt_compat.h" 43#include "opt_devfs.h" 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/sysproto.h> --- 48 unchanged lines hidden (view full) --- 96 /* dump */ nodump, 97 /* psize */ nopsize, 98 /* flags */ 0, 99 /* maxio */ 0, 100 /* bmaj */ -1 101}; 102 103static int finishdup __P((struct filedesc *fdp, int old, int new, register_t *retval)); | 40 */ 41 42#include "opt_compat.h" 43#include "opt_devfs.h" 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/sysproto.h> --- 48 unchanged lines hidden (view full) --- 96 /* dump */ nodump, 97 /* psize */ nopsize, 98 /* flags */ 0, 99 /* maxio */ 0, 100 /* bmaj */ -1 101}; 102 103static int finishdup __P((struct filedesc *fdp, int old, int new, register_t *retval)); |
| 104static int badfo_readwrite __P((struct file *fp, struct uio *uio, 105 struct ucred *cred, int flags)); 106static int badfo_ioctl __P((struct file *fp, u_long com, caddr_t data, 107 struct proc *p)); 108static int badfo_poll __P((struct file *fp, int events, 109 struct ucred *cred, struct proc *p)); 110static int badfo_close __P((struct file *fp, struct proc *p)); |
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| 104/* 105 * Descriptor management. 106 */ 107struct filelist filehead; /* head of list of open files */ 108int nfiles; /* actual number of open files */ 109extern int cmask; 110 111/* --- 719 unchanged lines hidden (view full) --- 831 * Allocate a new file descriptor. 832 * If the process has file descriptor zero open, add to the list 833 * of open files at that point, otherwise put it at the front of 834 * the list of open files. 835 */ 836 nfiles++; 837 MALLOC(fp, struct file *, sizeof(struct file), M_FILE, M_WAITOK); 838 bzero(fp, sizeof(struct file)); | 111/* 112 * Descriptor management. 113 */ 114struct filelist filehead; /* head of list of open files */ 115int nfiles; /* actual number of open files */ 116extern int cmask; 117 118/* --- 719 unchanged lines hidden (view full) --- 838 * Allocate a new file descriptor. 839 * If the process has file descriptor zero open, add to the list 840 * of open files at that point, otherwise put it at the front of 841 * the list of open files. 842 */ 843 nfiles++; 844 MALLOC(fp, struct file *, sizeof(struct file), M_FILE, M_WAITOK); 845 bzero(fp, sizeof(struct file)); |
| 846 fp->f_count = 1; 847 fp->f_cred = p->p_ucred; 848 fp->f_ops = &badfileops; 849 fp->f_seqcount = 1; 850 crhold(fp->f_cred); |
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| 839 if ((fq = p->p_fd->fd_ofiles[0])) { 840 LIST_INSERT_AFTER(fq, fp, f_list); 841 } else { 842 LIST_INSERT_HEAD(&filehead, fp, f_list); 843 } 844 p->p_fd->fd_ofiles[i] = fp; | 851 if ((fq = p->p_fd->fd_ofiles[0])) { 852 LIST_INSERT_AFTER(fq, fp, f_list); 853 } else { 854 LIST_INSERT_HEAD(&filehead, fp, f_list); 855 } 856 p->p_fd->fd_ofiles[i] = fp; |
| 845 fp->f_count = 1; 846 fp->f_cred = p->p_ucred; 847 fp->f_seqcount = 1; 848 crhold(fp->f_cred); | |
| 849 if (resultfp) 850 *resultfp = fp; 851 if (resultfd) 852 *resultfd = i; 853 return (0); 854} 855 856/* --- 216 unchanged lines hidden (view full) --- 1073 if ((fp->f_flag & FHASLOCK) && fp->f_type == DTYPE_VNODE) { 1074 lf.l_whence = SEEK_SET; 1075 lf.l_start = 0; 1076 lf.l_len = 0; 1077 lf.l_type = F_UNLCK; 1078 vp = (struct vnode *)fp->f_data; 1079 (void) VOP_ADVLOCK(vp, (caddr_t)fp, F_UNLCK, &lf, F_FLOCK); 1080 } | 857 if (resultfp) 858 *resultfp = fp; 859 if (resultfd) 860 *resultfd = i; 861 return (0); 862} 863 864/* --- 216 unchanged lines hidden (view full) --- 1081 if ((fp->f_flag & FHASLOCK) && fp->f_type == DTYPE_VNODE) { 1082 lf.l_whence = SEEK_SET; 1083 lf.l_start = 0; 1084 lf.l_len = 0; 1085 lf.l_type = F_UNLCK; 1086 vp = (struct vnode *)fp->f_data; 1087 (void) VOP_ADVLOCK(vp, (caddr_t)fp, F_UNLCK, &lf, F_FLOCK); 1088 } |
| 1081 if (fp->f_ops) | 1089 if (fp->f_ops != &badfileops) |
| 1082 error = (*fp->f_ops->fo_close)(fp, p); 1083 else 1084 error = 0; 1085 ffree(fp); 1086 return (error); 1087} 1088 1089/* --- 228 unchanged lines hidden (view full) --- 1318 devfs_token_stderr = 1319 devfs_add_devswf(&fildesc_cdevsw, 2, DV_CHR, 1320 UID_ROOT, GID_WHEEL, 0666, 1321 "stderr"); 1322#endif 1323 } 1324} 1325 | 1090 error = (*fp->f_ops->fo_close)(fp, p); 1091 else 1092 error = 0; 1093 ffree(fp); 1094 return (error); 1095} 1096 1097/* --- 228 unchanged lines hidden (view full) --- 1326 devfs_token_stderr = 1327 devfs_add_devswf(&fildesc_cdevsw, 2, DV_CHR, 1328 UID_ROOT, GID_WHEEL, 0666, 1329 "stderr"); 1330#endif 1331 } 1332} 1333 |
| 1334struct fileops badfileops = { 1335 badfo_readwrite, 1336 badfo_readwrite, 1337 badfo_ioctl, 1338 badfo_poll, 1339 badfo_close 1340}; 1341 1342static int 1343badfo_readwrite(fp, uio, cred, flags) 1344 struct file *fp; 1345 struct uio *uio; 1346 struct ucred *cred; 1347 int flags; 1348{ 1349 1350 return (EBADF); 1351} 1352 1353static int 1354badfo_ioctl(fp, com, data, p) 1355 struct file *fp; 1356 u_long com; 1357 caddr_t data; 1358 struct proc *p; 1359{ 1360 1361 return (EBADF); 1362} 1363 1364static int 1365badfo_poll(fp, events, cred, p) 1366 struct file *fp; 1367 int events; 1368 struct ucred *cred; 1369 struct proc *p; 1370{ 1371 1372 return (0); 1373} 1374 1375static int 1376badfo_close(fp, p) 1377 struct file *fp; 1378 struct proc *p; 1379{ 1380 1381 return (EBADF); 1382} 1383 |
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| 1326SYSINIT(fildescdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, 1327 fildesc_drvinit,NULL) 1328 1329 | 1384SYSINIT(fildescdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR, 1385 fildesc_drvinit,NULL) 1386 1387 |