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OS-4104 lxbrand convert stat syscalls to IKE
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
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--- old/usr/src/uts/common/syscall/stat.c
+++ new/usr/src/uts/common/syscall/stat.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21
22 22 /*
23 23 * Copyright (c) 1994, 2010, Oracle and/or its affiliates. All rights reserved.
24 24 */
25 25
26 26 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
27 27 /* All Rights Reserved */
28 28
29 29 /*
30 30 * Portions of this source code were derived from Berkeley 4.3 BSD
31 31 * under license from the Regents of the University of California.
32 32 */
33 33
34 34 /*
35 35 * Get file attribute information through a file name or a file descriptor.
36 36 */
37 37
38 38 #include <sys/param.h>
39 39 #include <sys/isa_defs.h>
40 40 #include <sys/types.h>
41 41 #include <sys/sysmacros.h>
42 42 #include <sys/cred.h>
43 43 #include <sys/systm.h>
44 44 #include <sys/errno.h>
45 45 #include <sys/fcntl.h>
46 46 #include <sys/pathname.h>
47 47 #include <sys/stat.h>
48 48 #include <sys/vfs.h>
49 49 #include <sys/vnode.h>
50 50 #include <sys/mode.h>
51 51 #include <sys/file.h>
52 52 #include <sys/proc.h>
53 53 #include <sys/uio.h>
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54 54 #include <sys/debug.h>
55 55 #include <sys/cmn_err.h>
56 56 #include <c2/audit.h>
57 57 #include <fs/fs_subr.h>
58 58
59 59 /*
60 60 * Get the vp to be stated and the cred to be used for the call
61 61 * to VOP_GETATTR
62 62 */
63 63
64 -static int
64 +int
65 65 cstatat_getvp(int fd, char *name, int follow, vnode_t **vp, cred_t **cred)
66 66 {
67 67 vnode_t *startvp;
68 68 file_t *fp;
69 69 int error;
70 70 cred_t *cr;
71 71 int estale_retry = 0;
72 72
73 73 *vp = NULL;
74 74
75 75 /*
76 76 * Only return EFAULT for fstatat when fd == AT_FDCWD && name == NULL
77 77 */
78 78
79 79 if (fd == AT_FDCWD) {
80 80 startvp = NULL;
81 81 cr = CRED();
82 82 crhold(cr);
83 83 } else {
84 84 char startchar;
85 85
86 86 if (copyin(name, &startchar, sizeof (char)))
87 87 return (EFAULT);
88 88 if (startchar != '/') {
89 89 if ((fp = getf(fd)) == NULL) {
90 90 return (EBADF);
91 91 }
92 92 startvp = fp->f_vnode;
93 93 cr = fp->f_cred;
94 94 crhold(cr);
95 95 VN_HOLD(startvp);
96 96 releasef(fd);
97 97 } else {
98 98 startvp = NULL;
99 99 cr = CRED();
100 100 crhold(cr);
101 101 }
102 102 }
103 103 *cred = cr;
104 104
105 105 if (AU_AUDITING() && startvp != NULL)
106 106 audit_setfsat_path(1);
107 107
108 108 lookup:
109 109 if (error = lookupnameat(name, UIO_USERSPACE, follow, NULLVPP,
110 110 vp, startvp)) {
111 111 if ((error == ESTALE) &&
112 112 fs_need_estale_retry(estale_retry++))
113 113 goto lookup;
114 114 if (startvp != NULL)
115 115 VN_RELE(startvp);
116 116 crfree(cr);
117 117 return (error);
118 118 }
119 119 if (startvp != NULL)
120 120 VN_RELE(startvp);
121 121
122 122 return (0);
123 123 }
124 124
125 125 /*
126 126 * Native syscall interfaces:
127 127 *
128 128 * N-bit kernel, N-bit applications, N-bit file offsets
129 129 */
130 130
131 131 static int cstatat(int, char *, struct stat *, int, int);
132 132 static int cstat(vnode_t *vp, struct stat *, int, cred_t *);
133 133
134 134 /*
135 135 * fstat can and should be fast, do an inline implementation here.
136 136 */
137 137 #define FSTAT_BODY(fd, sb, statfn) \
138 138 { \
139 139 file_t *fp; \
140 140 int error; \
141 141 \
142 142 if (fd == AT_FDCWD) \
143 143 return (set_errno(EFAULT)); \
144 144 if ((fp = getf(fd)) == NULL) \
145 145 return (set_errno(EBADF)); \
146 146 error = statfn(fp->f_vnode, sb, 0, fp->f_cred); \
147 147 releasef(fd); \
148 148 if (error) \
149 149 return (set_errno(error)); \
150 150 return (0); \
151 151 }
152 152
153 153 int
154 154 fstat(int fd, struct stat *sb)
155 155 {
156 156 FSTAT_BODY(fd, sb, cstat)
157 157 }
158 158
159 159 int
160 160 fstatat(int fd, char *name, struct stat *sb, int flags)
161 161 {
162 162 int followflag;
163 163 int csflags;
164 164
165 165 if (name == NULL)
166 166 return (fstat(fd, sb));
167 167
168 168 followflag = (flags & AT_SYMLINK_NOFOLLOW);
169 169 csflags = (flags & _AT_TRIGGER ? ATTR_TRIGGER : 0);
170 170 if (followflag == 0)
171 171 csflags |= ATTR_REAL; /* flag for procfs lookups */
172 172
173 173 return (cstatat(fd, name, sb, followflag, csflags));
174 174 }
175 175
176 176 int
177 177 stat(char *name, struct stat *sb)
178 178 {
179 179 return (fstatat(AT_FDCWD, name, sb, 0));
180 180 }
181 181
182 182 int
183 183 lstat(char *name, struct stat *sb)
184 184 {
185 185 return (fstatat(AT_FDCWD, name, sb, AT_SYMLINK_NOFOLLOW));
186 186 }
187 187
188 188 /*
189 189 * Common code for stat(), lstat(), and fstat().
190 190 * (32-bit kernel, 32-bit applications, 32-bit files)
191 191 * (64-bit kernel, 64-bit applications, 64-bit files)
192 192 */
193 193 static int
194 194 cstat(vnode_t *vp, struct stat *ubp, int flag, cred_t *cr)
195 195 {
196 196 struct vfssw *vswp;
197 197 struct stat sb;
198 198 vattr_t vattr;
199 199 int error;
200 200
201 201 vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE;
202 202 if ((error = VOP_GETATTR(vp, &vattr, flag, cr, NULL)) != 0)
203 203 return (error);
204 204 #ifdef _ILP32
205 205 /*
206 206 * (32-bit kernel, 32-bit applications, 32-bit files)
207 207 * NOTE: 32-bit kernel maintains a 64-bit unsigend va_size.
208 208 *
209 209 * st_size of devices (VBLK and VCHR special files) is a special case.
210 210 * POSIX does not define size behavior for special files, so the
211 211 * following Solaris specific behavior is not a violation. Solaris
212 212 * returns the size of the device.
213 213 *
214 214 * For compatibility with 32-bit programs which happen to do stat() on
215 215 * a (mknod) bigger than 2GB we suppress the large file EOVERFLOW and
216 216 * instead we return the value MAXOFF32_T (LONG_MAX).
217 217 *
218 218 * 32-bit applications that care about the size of devices should be
219 219 * built 64-bit or use a large file interface (lfcompile(5) or lf64(5)).
220 220 */
221 221 if ((vattr.va_size > MAXOFF32_T) &&
222 222 ((vp->v_type == VBLK) || (vp->v_type == VCHR))) {
223 223 /* OVERFLOW | UNKNOWN_SIZE */
224 224 vattr.va_size = MAXOFF32_T;
225 225 }
226 226 #endif /* _ILP32 */
227 227 if (vattr.va_size > MAXOFF_T || vattr.va_nblocks > LONG_MAX ||
228 228 vattr.va_nodeid > ULONG_MAX)
229 229 return (EOVERFLOW);
230 230
231 231 bzero(&sb, sizeof (sb));
232 232 sb.st_dev = vattr.va_fsid;
233 233 sb.st_ino = (ino_t)vattr.va_nodeid;
234 234 sb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode;
235 235 sb.st_nlink = vattr.va_nlink;
236 236 sb.st_uid = vattr.va_uid;
237 237 sb.st_gid = vattr.va_gid;
238 238 sb.st_rdev = vattr.va_rdev;
239 239 sb.st_size = (off_t)vattr.va_size;
240 240 sb.st_atim = vattr.va_atime;
241 241 sb.st_mtim = vattr.va_mtime;
242 242 sb.st_ctim = vattr.va_ctime;
243 243 sb.st_blksize = vattr.va_blksize;
244 244 sb.st_blocks = (blkcnt_t)vattr.va_nblocks;
245 245 if (vp->v_vfsp != NULL) {
246 246 vswp = &vfssw[vp->v_vfsp->vfs_fstype];
247 247 if (vswp->vsw_name && *vswp->vsw_name)
248 248 (void) strcpy(sb.st_fstype, vswp->vsw_name);
249 249 }
250 250 if (copyout(&sb, ubp, sizeof (sb)))
251 251 return (EFAULT);
252 252 return (0);
253 253 }
254 254
255 255 static int
256 256 cstatat(int fd, char *name, struct stat *sb, int follow, int flags)
257 257 {
258 258 vnode_t *vp;
259 259 int error;
260 260 cred_t *cred;
261 261 int link_follow;
262 262 int estale_retry = 0;
263 263
264 264 link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW;
265 265 lookup:
266 266 if (error = cstatat_getvp(fd, name, link_follow, &vp, &cred))
267 267 return (set_errno(error));
268 268 error = cstat(vp, sb, flags, cred);
269 269 crfree(cred);
270 270 VN_RELE(vp);
271 271 if (error != 0) {
272 272 if (error == ESTALE &&
273 273 fs_need_estale_retry(estale_retry++))
274 274 goto lookup;
275 275 return (set_errno(error));
276 276 }
277 277 return (0);
278 278 }
279 279
280 280 #if defined(_SYSCALL32_IMPL)
281 281
282 282 /*
283 283 * 64-bit kernel, 32-bit applications, 32-bit file offsets
284 284 */
285 285 static int cstatat32(int, char *, struct stat32 *, int, int);
286 286 static int cstat32(vnode_t *, struct stat32 *, int, cred_t *);
287 287
288 288 int
289 289 fstat32(int fd, struct stat32 *sb)
290 290 {
291 291 FSTAT_BODY(fd, sb, cstat32)
292 292 }
293 293
294 294 int
295 295 fstatat32(int fd, char *name, struct stat32 *sb, int flags)
296 296 {
297 297 int followflag;
298 298 int csflags;
299 299
300 300 if (name == NULL)
301 301 return (fstat32(fd, sb));
302 302
303 303 followflag = (flags & AT_SYMLINK_NOFOLLOW);
304 304 csflags = (flags & _AT_TRIGGER ? ATTR_TRIGGER : 0);
305 305 if (followflag == 0)
306 306 csflags |= ATTR_REAL; /* flag for procfs lookups */
307 307
308 308 return (cstatat32(fd, name, sb, followflag, csflags));
309 309 }
310 310
311 311 int
312 312 stat32(char *name, struct stat32 *sb)
313 313 {
314 314 return (fstatat32(AT_FDCWD, name, sb, 0));
315 315 }
316 316
317 317 int
318 318 lstat32(char *name, struct stat32 *sb)
319 319 {
320 320 return (fstatat32(AT_FDCWD, name, sb, AT_SYMLINK_NOFOLLOW));
321 321 }
322 322
323 323 static int
324 324 cstat32(vnode_t *vp, struct stat32 *ubp, int flag, struct cred *cr)
325 325 {
326 326 struct vfssw *vswp;
327 327 struct stat32 sb;
328 328 vattr_t vattr;
329 329 int error;
330 330 dev32_t st_dev, st_rdev;
331 331
332 332 vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE;
333 333 if (error = VOP_GETATTR(vp, &vattr, flag, cr, NULL))
334 334 return (error);
335 335
336 336 /* devices are a special case, see comments in cstat */
337 337 if ((vattr.va_size > MAXOFF32_T) &&
338 338 ((vp->v_type == VBLK) || (vp->v_type == VCHR))) {
339 339 /* OVERFLOW | UNKNOWN_SIZE */
340 340 vattr.va_size = MAXOFF32_T;
341 341 }
342 342
343 343 /* check for large values */
344 344 if (!cmpldev(&st_dev, vattr.va_fsid) ||
345 345 !cmpldev(&st_rdev, vattr.va_rdev) ||
346 346 vattr.va_size > MAXOFF32_T ||
347 347 vattr.va_nblocks > INT32_MAX ||
348 348 vattr.va_nodeid > UINT32_MAX ||
349 349 TIMESPEC_OVERFLOW(&(vattr.va_atime)) ||
350 350 TIMESPEC_OVERFLOW(&(vattr.va_mtime)) ||
351 351 TIMESPEC_OVERFLOW(&(vattr.va_ctime)))
352 352 return (EOVERFLOW);
353 353
354 354 bzero(&sb, sizeof (sb));
355 355 sb.st_dev = st_dev;
356 356 sb.st_ino = (ino32_t)vattr.va_nodeid;
357 357 sb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode;
358 358 sb.st_nlink = vattr.va_nlink;
359 359 sb.st_uid = vattr.va_uid;
360 360 sb.st_gid = vattr.va_gid;
361 361 sb.st_rdev = st_rdev;
362 362 sb.st_size = (off32_t)vattr.va_size;
363 363 TIMESPEC_TO_TIMESPEC32(&(sb.st_atim), &(vattr.va_atime));
364 364 TIMESPEC_TO_TIMESPEC32(&(sb.st_mtim), &(vattr.va_mtime));
365 365 TIMESPEC_TO_TIMESPEC32(&(sb.st_ctim), &(vattr.va_ctime));
366 366 sb.st_blksize = vattr.va_blksize;
367 367 sb.st_blocks = (blkcnt32_t)vattr.va_nblocks;
368 368 if (vp->v_vfsp != NULL) {
369 369 vswp = &vfssw[vp->v_vfsp->vfs_fstype];
370 370 if (vswp->vsw_name && *vswp->vsw_name)
371 371 (void) strcpy(sb.st_fstype, vswp->vsw_name);
372 372 }
373 373 if (copyout(&sb, ubp, sizeof (sb)))
374 374 return (EFAULT);
375 375 return (0);
376 376 }
377 377
378 378 static int
379 379 cstatat32(int fd, char *name, struct stat32 *sb, int follow, int flags)
380 380 {
381 381 vnode_t *vp;
382 382 int error;
383 383 cred_t *cred;
384 384 int link_follow;
385 385 int estale_retry = 0;
386 386
387 387 link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW;
388 388 lookup:
389 389 if (error = cstatat_getvp(fd, name, link_follow, &vp, &cred))
390 390 return (set_errno(error));
391 391 error = cstat32(vp, sb, flags, cred);
392 392 crfree(cred);
393 393 VN_RELE(vp);
394 394 if (error != 0) {
395 395 if (error == ESTALE &&
396 396 fs_need_estale_retry(estale_retry++))
397 397 goto lookup;
398 398 return (set_errno(error));
399 399 }
400 400 return (0);
401 401 }
402 402
403 403 #endif /* _SYSCALL32_IMPL */
404 404
405 405 #if defined(_ILP32)
406 406
407 407 /*
408 408 * 32-bit kernel, 32-bit applications, 64-bit file offsets.
409 409 *
410 410 * These routines are implemented differently on 64-bit kernels.
411 411 */
412 412 static int cstatat64(int, char *, struct stat64 *, int, int);
413 413 static int cstat64(vnode_t *, struct stat64 *, int, cred_t *);
414 414
415 415 int
416 416 fstat64(int fd, struct stat64 *sb)
417 417 {
418 418 FSTAT_BODY(fd, sb, cstat64)
419 419 }
420 420
421 421 int
422 422 fstatat64(int fd, char *name, struct stat64 *sb, int flags)
423 423 {
424 424 int followflag;
425 425 int csflags;
426 426
427 427 if (name == NULL)
428 428 return (fstat64(fd, sb));
429 429
430 430 followflag = (flags & AT_SYMLINK_NOFOLLOW);
431 431 csflags = (flags & _AT_TRIGGER ? ATTR_TRIGGER : 0);
432 432 if (followflag == 0)
433 433 csflags |= ATTR_REAL; /* flag for procfs lookups */
434 434
435 435 return (cstatat64(fd, name, sb, followflag, csflags));
436 436 }
437 437
438 438 int
439 439 stat64(char *name, struct stat64 *sb)
440 440 {
441 441 return (fstatat64(AT_FDCWD, name, sb, 0));
442 442 }
443 443
444 444 int
445 445 lstat64(char *name, struct stat64 *sb)
446 446 {
447 447 return (fstatat64(AT_FDCWD, name, sb, AT_SYMLINK_NOFOLLOW));
448 448 }
449 449
450 450 static int
451 451 cstat64(vnode_t *vp, struct stat64 *ubp, int flag, cred_t *cr)
452 452 {
453 453 struct vfssw *vswp;
454 454 struct stat64 lsb;
455 455 vattr_t vattr;
456 456 int error;
457 457
458 458 vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE;
459 459 if (error = VOP_GETATTR(vp, &vattr, flag, cr, NULL))
460 460 return (error);
461 461
462 462 bzero(&lsb, sizeof (lsb));
463 463 lsb.st_dev = vattr.va_fsid;
464 464 lsb.st_ino = vattr.va_nodeid;
465 465 lsb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode;
466 466 lsb.st_nlink = vattr.va_nlink;
467 467 lsb.st_uid = vattr.va_uid;
468 468 lsb.st_gid = vattr.va_gid;
469 469 lsb.st_rdev = vattr.va_rdev;
470 470 lsb.st_size = vattr.va_size;
471 471 lsb.st_atim = vattr.va_atime;
472 472 lsb.st_mtim = vattr.va_mtime;
473 473 lsb.st_ctim = vattr.va_ctime;
474 474 lsb.st_blksize = vattr.va_blksize;
475 475 lsb.st_blocks = vattr.va_nblocks;
476 476 if (vp->v_vfsp != NULL) {
477 477 vswp = &vfssw[vp->v_vfsp->vfs_fstype];
478 478 if (vswp->vsw_name && *vswp->vsw_name)
479 479 (void) strcpy(lsb.st_fstype, vswp->vsw_name);
480 480 }
481 481 if (copyout(&lsb, ubp, sizeof (lsb)))
482 482 return (EFAULT);
483 483 return (0);
484 484 }
485 485
486 486 static int
487 487 cstatat64(int fd, char *name, struct stat64 *sb, int follow, int flags)
488 488 {
489 489 vnode_t *vp;
490 490 int error;
491 491 cred_t *cred;
492 492 int link_follow;
493 493 int estale_retry = 0;
494 494
495 495 link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW;
496 496 lookup:
497 497 if (error = cstatat_getvp(fd, name, link_follow, &vp, &cred))
498 498 return (set_errno(error));
499 499 error = cstat64(vp, sb, flags, cred);
500 500 crfree(cred);
501 501 VN_RELE(vp);
502 502 if (error != 0) {
503 503 if (error == ESTALE &&
504 504 fs_need_estale_retry(estale_retry++))
505 505 goto lookup;
506 506 return (set_errno(error));
507 507 }
508 508 return (0);
509 509 }
510 510
511 511 #endif /* _ILP32 */
512 512
513 513 #if defined(_SYSCALL32_IMPL)
514 514
515 515 /*
516 516 * 64-bit kernel, 32-bit applications, 64-bit file offsets.
517 517 *
518 518 * We'd really like to call the "native" stat calls for these ones,
519 519 * but the problem is that the 64-bit ABI defines the 'stat64' structure
520 520 * differently from the way the 32-bit ABI defines it.
521 521 */
522 522
523 523 static int cstatat64_32(int, char *, struct stat64_32 *, int, int);
524 524 static int cstat64_32(vnode_t *, struct stat64_32 *, int, cred_t *);
525 525
526 526 int
527 527 fstat64_32(int fd, struct stat64_32 *sb)
528 528 {
529 529 FSTAT_BODY(fd, sb, cstat64_32)
530 530 }
531 531
532 532 int
533 533 fstatat64_32(int fd, char *name, struct stat64_32 *sb, int flags)
534 534 {
535 535 int followflag;
536 536 int csflags;
537 537
538 538 if (name == NULL)
539 539 return (fstat64_32(fd, sb));
540 540
541 541 followflag = (flags & AT_SYMLINK_NOFOLLOW);
542 542 csflags = (flags & _AT_TRIGGER ? ATTR_TRIGGER : 0);
543 543 if (followflag == 0)
544 544 csflags |= ATTR_REAL; /* flag for procfs lookups */
545 545
546 546 return (cstatat64_32(fd, name, sb, followflag, csflags));
547 547 }
548 548
549 549 int
550 550 stat64_32(char *name, struct stat64_32 *sb)
551 551 {
552 552 return (fstatat64_32(AT_FDCWD, name, sb, 0));
553 553 }
554 554
555 555 int
556 556 lstat64_32(char *name, struct stat64_32 *sb)
557 557 {
558 558 return (fstatat64_32(AT_FDCWD, name, sb, AT_SYMLINK_NOFOLLOW));
559 559 }
560 560
561 561 static int
562 562 cstat64_32(vnode_t *vp, struct stat64_32 *ubp, int flag, cred_t *cr)
563 563 {
564 564 struct vfssw *vswp;
565 565 struct stat64_32 lsb;
566 566 vattr_t vattr;
567 567 int error;
568 568 dev32_t st_dev, st_rdev;
569 569
570 570 vattr.va_mask = AT_STAT | AT_NBLOCKS | AT_BLKSIZE | AT_SIZE;
571 571 if (error = VOP_GETATTR(vp, &vattr, flag, cr, NULL))
572 572 return (error);
573 573
574 574 if (!cmpldev(&st_dev, vattr.va_fsid) ||
575 575 !cmpldev(&st_rdev, vattr.va_rdev) ||
576 576 TIMESPEC_OVERFLOW(&(vattr.va_atime)) ||
577 577 TIMESPEC_OVERFLOW(&(vattr.va_mtime)) ||
578 578 TIMESPEC_OVERFLOW(&(vattr.va_ctime)))
579 579 return (EOVERFLOW);
580 580
581 581 bzero(&lsb, sizeof (lsb));
582 582 lsb.st_dev = st_dev;
583 583 lsb.st_ino = vattr.va_nodeid;
584 584 lsb.st_mode = VTTOIF(vattr.va_type) | vattr.va_mode;
585 585 lsb.st_nlink = vattr.va_nlink;
586 586 lsb.st_uid = vattr.va_uid;
587 587 lsb.st_gid = vattr.va_gid;
588 588 lsb.st_rdev = st_rdev;
589 589 lsb.st_size = vattr.va_size;
590 590 TIMESPEC_TO_TIMESPEC32(&(lsb.st_atim), &(vattr.va_atime));
591 591 TIMESPEC_TO_TIMESPEC32(&(lsb.st_mtim), &(vattr.va_mtime));
592 592 TIMESPEC_TO_TIMESPEC32(&(lsb.st_ctim), &(vattr.va_ctime));
593 593 lsb.st_blksize = vattr.va_blksize;
594 594 lsb.st_blocks = vattr.va_nblocks;
595 595 if (vp->v_vfsp != NULL) {
596 596 vswp = &vfssw[vp->v_vfsp->vfs_fstype];
597 597 if (vswp->vsw_name && *vswp->vsw_name)
598 598 (void) strcpy(lsb.st_fstype, vswp->vsw_name);
599 599 }
600 600 if (copyout(&lsb, ubp, sizeof (lsb)))
601 601 return (EFAULT);
602 602 return (0);
603 603 }
604 604
605 605 static int
606 606 cstatat64_32(int fd, char *name, struct stat64_32 *sb, int follow, int flags)
607 607 {
608 608 vnode_t *vp;
609 609 int error;
610 610 cred_t *cred;
611 611 int link_follow;
612 612 int estale_retry = 0;
613 613
614 614 link_follow = (follow == AT_SYMLINK_NOFOLLOW) ? NO_FOLLOW : FOLLOW;
615 615 lookup:
616 616 if (error = cstatat_getvp(fd, name, link_follow, &vp, &cred))
617 617 return (set_errno(error));
618 618 error = cstat64_32(vp, sb, flags, cred);
619 619 crfree(cred);
620 620 VN_RELE(vp);
621 621 if (error != 0) {
622 622 if (error == ESTALE &&
623 623 fs_need_estale_retry(estale_retry++))
624 624 goto lookup;
625 625 return (set_errno(error));
626 626 }
627 627 return (0);
628 628 }
629 629
630 630 #endif /* _SYSCALL32_IMPL */
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