Branch data Line data Source code
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_stat)
32 : :
33 : : #include "asm_stat.h"
34 : :
35 : : #if defined MPERS_IS_m32
36 : : # undef HAVE_STRUCT_STAT
37 : : # undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
38 : : # ifdef HAVE_M32_STRUCT_STAT
39 : : # define HAVE_STRUCT_STAT 1
40 : : # ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
41 : : # define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
42 : : # endif /* HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC */
43 : : # endif /* HAVE_M32_STRUCT_STAT */
44 : : #elif defined MPERS_IS_mx32
45 : : # undef HAVE_STRUCT_STAT
46 : : # undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
47 : : # ifdef HAVE_MX32_STRUCT_STAT
48 : : # define HAVE_STRUCT_STAT 1
49 : : # ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
50 : : # define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
51 : : # endif /* HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC */
52 : : # endif /* HAVE_MX32_STRUCT_STAT */
53 : : #else /* !MPERS_IS_m32 && !MPERS_IS_mx32 */
54 : : # define HAVE_STRUCT_STAT 1
55 : : #endif
56 : :
57 : : #ifndef HAVE_STRUCT_STAT
58 : : struct stat {};
59 : : #endif
60 : :
61 : : typedef struct stat struct_stat;
62 : :
63 : : #include MPERS_DEFS
64 : :
65 : : #include "stat.h"
66 : :
67 : : #ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
68 : : # define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
69 : : # define HAVE_NSEC true
70 : : #else
71 : : # define TIME_NSEC(arg) 0
72 : : # define HAVE_NSEC false
73 : : #endif
74 : :
75 : 64 : MPERS_PRINTER_DECL(bool, fetch_struct_stat,
76 : : struct tcb *const tcp, const kernel_ulong_t addr,
77 : : struct strace_stat *const dst)
78 : : {
79 : : #ifdef HAVE_STRUCT_STAT
80 : : struct_stat buf;
81 [ + + ]: 64 : if (umove_or_printaddr(tcp, addr, &buf))
82 : : return false;
83 : :
84 : 43 : dst->dev = zero_extend_signed_to_ull(buf.st_dev);
85 : 43 : dst->ino = zero_extend_signed_to_ull(buf.st_ino);
86 : 43 : dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
87 : 43 : dst->size = zero_extend_signed_to_ull(buf.st_size);
88 : 43 : dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
89 : 43 : dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
90 : 43 : dst->mode = zero_extend_signed_to_ull(buf.st_mode);
91 : 43 : dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
92 : 43 : dst->uid = zero_extend_signed_to_ull(buf.st_uid);
93 : 43 : dst->gid = zero_extend_signed_to_ull(buf.st_gid);
94 : 43 : dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
95 : 43 : dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
96 : 43 : dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
97 : 43 : dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
98 : 43 : dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
99 : 43 : dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
100 : 43 : dst->has_nsec = HAVE_NSEC;
101 : 43 : return true;
102 : : #else /* !HAVE_STRUCT_STAT */
103 : : printaddr(addr);
104 : : return false;
105 : : #endif
106 : : }
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