1 /*
2 * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
3 * Copyright (c) 2016-2017 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "defs.h"
30
31 #include DEF_MPERS_TYPE(struct_stat64)
32
33 #include "asm_stat.h"
34
35 #if defined MPERS_IS_m32
36 # undef HAVE_STRUCT_STAT64
37 # undef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
38 # ifdef HAVE_M32_STRUCT_STAT64
39 # define HAVE_STRUCT_STAT64 1
40 # ifdef HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC
41 # define HAVE_STRUCT_STAT64_ST_MTIME_NSEC 1
42 # endif /* HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC */
43 # endif /* HAVE_M32_STRUCT_STAT64 */
44 #elif defined MPERS_IS_mx32
45 # undef HAVE_STRUCT_STAT64
46 # undef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
47 # ifdef HAVE_MX32_STRUCT_STAT64
48 # define HAVE_STRUCT_STAT64 1
49 # ifdef HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC
50 # define HAVE_STRUCT_STAT64_ST_MTIME_NSEC 1
51 # endif /* HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC */
52 # endif /* HAVE_MX32_STRUCT_STAT64 */
53 #endif /* MPERS_IS_m32 || MPERS_IS_mx32 */
54
55 #ifndef HAVE_STRUCT_STAT64
56 struct stat64 {};
57 #endif
58
59 typedef struct stat64 struct_stat64;
60
61 #include MPERS_DEFS
62
63 #include "stat.h"
64
65 #ifdef HAVE_STRUCT_STAT64_ST_MTIME_NSEC
66 # define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
67 # define HAVE_NSEC true
68 #else
69 # define TIME_NSEC(arg) 0
70 # define HAVE_NSEC false
71 #endif
72
MPERS_PRINTER_DECL(bool,fetch_struct_stat64,struct tcb * const tcp,const kernel_ulong_t addr,struct strace_stat * const dst)73 MPERS_PRINTER_DECL(bool, fetch_struct_stat64,
74 struct tcb *const tcp, const kernel_ulong_t addr,
75 struct strace_stat *const dst)
76 {
77 #ifdef HAVE_STRUCT_STAT64
78 struct_stat64 buf;
79 if (umove_or_printaddr(tcp, addr, &buf))
80 return false;
81
82 dst->dev = zero_extend_signed_to_ull(buf.st_dev);
83 dst->ino = zero_extend_signed_to_ull(buf.st_ino);
84 dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
85 dst->size = zero_extend_signed_to_ull(buf.st_size);
86 dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
87 dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
88 dst->mode = zero_extend_signed_to_ull(buf.st_mode);
89 dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
90 dst->uid = zero_extend_signed_to_ull(buf.st_uid);
91 dst->gid = zero_extend_signed_to_ull(buf.st_gid);
92 dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
93 dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
94 dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
95 dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
96 dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
97 dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
98 dst->has_nsec = HAVE_NSEC;
99 return true;
100 #else /* !HAVE_STRUCT_STAT64 */
101 printaddr(addr);
102 return false;
103 #endif
104 }
105