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9756dfe1 | 1 | /* fxstat64 using old-style Unix fstat system call. |
fb23eb25 | 2 | Copyright (C) 1997,1998,1999,2000,2001,2002 Free Software Foundation, Inc. |
4cca6b86 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
4cca6b86 UD |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
4cca6b86 | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
4cca6b86 | 19 | |
9756dfe1 UD |
20 | #include <errno.h> |
21 | #include <stddef.h> | |
22 | #include <sys/stat.h> | |
23 | #include <kernel_stat.h> | |
4cca6b86 | 24 | |
0dee6738 UD |
25 | #include <sysdep.h> |
26 | #include <sys/syscall.h> | |
4bbb61e4 GM |
27 | #include <bp-checks.h> |
28 | ||
c63598bf | 29 | #include "kernel-features.h" |
0dee6738 | 30 | |
63a34b0f UD |
31 | #if __ASSUME_STAT64_SYSCALL == 0 |
32 | # include <xstatconv.c> | |
33 | #endif | |
9756dfe1 | 34 | |
4bbb61e4 | 35 | extern int __syscall_fstat (int, struct kernel_stat *__unbounded); |
9756dfe1 | 36 | |
63a34b0f | 37 | #ifdef __NR_fstat64 |
4bbb61e4 | 38 | extern int __syscall_fstat64 (int, struct stat64 *__unbounded); |
63a34b0f UD |
39 | # if __ASSUME_STAT64_SYSCALL == 0 |
40 | /* The variable is shared between all wrappers around *stat64 calls. */ | |
01496d70 | 41 | extern int __have_no_stat64; |
63a34b0f UD |
42 | # endif |
43 | #endif | |
44 | ||
9756dfe1 | 45 | /* Get information about the file FD in BUF. */ |
56ddf355 UD |
46 | extern int ___fxstat64 (int vers, int fd, struct stat64 *buf); |
47 | ||
9756dfe1 | 48 | int |
56ddf355 | 49 | ___fxstat64 (int vers, int fd, struct stat64 *buf) |
9756dfe1 | 50 | { |
56ddf355 | 51 | int result; |
63a34b0f | 52 | #if __ASSUME_STAT64_SYSCALL > 0 |
56ddf355 UD |
53 | result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf)); |
54 | # if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 | |
5287b1d8 | 55 | if (__builtin_expect (!result, 1) && buf->__st_ino != (__ino_t) buf->st_ino) |
56ddf355 UD |
56 | buf->st_ino = buf->__st_ino; |
57 | # endif | |
58 | return result; | |
63a34b0f | 59 | #else |
63a34b0f UD |
60 | struct kernel_stat kbuf; |
61 | # if defined __NR_fstat64 | |
01496d70 | 62 | if (! __have_no_stat64) |
63a34b0f UD |
63 | { |
64 | int saved_errno = errno; | |
4bbb61e4 | 65 | result = INLINE_SYSCALL (fstat64, 2, fd, CHECK_1 (buf)); |
63a34b0f UD |
66 | |
67 | if (result != -1 || errno != ENOSYS) | |
56ddf355 UD |
68 | { |
69 | # if defined _HAVE_STAT64___ST_INO && __ASSUME_ST_INO_64_BIT == 0 | |
70 | if (!result && buf->__st_ino != (__ino_t)buf->st_ino) | |
71 | buf->st_ino = buf->__st_ino; | |
72 | # endif | |
73 | return result; | |
74 | } | |
9756dfe1 | 75 | |
63a34b0f | 76 | __set_errno (saved_errno); |
01496d70 | 77 | __have_no_stat64 = 1; |
63a34b0f UD |
78 | } |
79 | # endif | |
4bbb61e4 | 80 | result = INLINE_SYSCALL (fstat, 2, fd, __ptrvalue (&kbuf)); |
9756dfe1 UD |
81 | if (result == 0) |
82 | result = xstat64_conv (vers, &kbuf, buf); | |
83 | ||
84 | return result; | |
63a34b0f | 85 | #endif |
9756dfe1 | 86 | } |
56ddf355 | 87 | |
fb23eb25 UD |
88 | #ifndef RTLD_STAT64 |
89 | # include <shlib-compat.h> | |
56ddf355 UD |
90 | |
91 | versioned_symbol (libc, ___fxstat64, __fxstat64, GLIBC_2_2); | |
92 | ||
fb23eb25 | 93 | # if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2) |
56ddf355 UD |
94 | strong_alias (___fxstat64, __old__fxstat64) |
95 | compat_symbol (libc, __old__fxstat64, __fxstat64, GLIBC_2_1); | |
fb23eb25 UD |
96 | # endif |
97 | ||
98 | #else | |
99 | strong_alias (___fxstat64, __fxstat64); | |
56ddf355 | 100 | #endif |