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       1                 :            : /*
       2                 :            :  * Copyright (c) 2014-2016 Dmitry V. Levin <ldv@altlinux.org>
       3                 :            :  * All rights reserved.
       4                 :            :  *
       5                 :            :  * Redistribution and use in source and binary forms, with or without
       6                 :            :  * modification, are permitted provided that the following conditions
       7                 :            :  * are met:
       8                 :            :  * 1. Redistributions of source code must retain the above copyright
       9                 :            :  *    notice, this list of conditions and the following disclaimer.
      10                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      11                 :            :  *    notice, this list of conditions and the following disclaimer in the
      12                 :            :  *    documentation and/or other materials provided with the distribution.
      13                 :            :  * 3. The name of the author may not be used to endorse or promote products
      14                 :            :  *    derived from this software without specific prior written permission.
      15                 :            :  *
      16                 :            :  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
      17                 :            :  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      18                 :            :  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
      19                 :            :  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
      20                 :            :  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      21                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      22                 :            :  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      23                 :            :  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      24                 :            :  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
      25                 :            :  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      26                 :            :  */
      27                 :            : 
      28                 :            : #include "defs.h"
      29                 :            : 
      30                 :            : #include DEF_MPERS_TYPE(struct_stat)
      31                 :            : 
      32                 :            : #include "asm_stat.h"
      33                 :            : 
      34                 :            : #if defined MPERS_IS_m32
      35                 :            : # undef HAVE_STRUCT_STAT
      36                 :            : # undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
      37                 :            : # ifdef HAVE_M32_STRUCT_STAT
      38                 :            : #  define HAVE_STRUCT_STAT 1
      39                 :            : #  ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
      40                 :            : #   define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
      41                 :            : #  endif /* HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC */
      42                 :            : # endif /* HAVE_M32_STRUCT_STAT */
      43                 :            : #elif defined MPERS_IS_mx32
      44                 :            : # undef HAVE_STRUCT_STAT
      45                 :            : # undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
      46                 :            : # ifdef HAVE_MX32_STRUCT_STAT
      47                 :            : #  define HAVE_STRUCT_STAT 1
      48                 :            : #  ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
      49                 :            : #   define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
      50                 :            : #  endif /* HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC */
      51                 :            : # endif /* HAVE_MX32_STRUCT_STAT */
      52                 :            : #else /* !MPERS_IS_m32 && !MPERS_IS_mx32 */
      53                 :            : # define HAVE_STRUCT_STAT 1
      54                 :            : #endif
      55                 :            : 
      56                 :            : #ifndef HAVE_STRUCT_STAT
      57                 :            : struct stat {};
      58                 :            : #endif
      59                 :            : 
      60                 :            : typedef struct stat struct_stat;
      61                 :            : 
      62                 :            : #include MPERS_DEFS
      63                 :            : 
      64                 :            : #include "stat.h"
      65                 :            : 
      66                 :            : #ifdef HAVE_STRUCT_STAT_ST_MTIME_NSEC
      67                 :            : # define TIME_NSEC(arg) zero_extend_signed_to_ull(arg)
      68                 :            : #else
      69                 :            : # define TIME_NSEC(arg) 0
      70                 :            : #endif
      71                 :            : 
      72                 :         98 : MPERS_PRINTER_DECL(bool, fetch_struct_stat,
      73                 :            :                    struct tcb *const tcp, const kernel_ulong_t addr,
      74                 :            :                    struct strace_stat *const dst)
      75                 :            : {
      76                 :            : #ifdef HAVE_STRUCT_STAT
      77                 :            :         struct_stat buf;
      78         [ +  + ]:         98 :         if (umove_or_printaddr(tcp, addr, &buf))
      79                 :         23 :                 return false;
      80                 :            : 
      81                 :         75 :         dst->dev = zero_extend_signed_to_ull(buf.st_dev);
      82                 :         75 :         dst->ino = zero_extend_signed_to_ull(buf.st_ino);
      83                 :         75 :         dst->rdev = zero_extend_signed_to_ull(buf.st_rdev);
      84                 :         75 :         dst->size = zero_extend_signed_to_ull(buf.st_size);
      85                 :         75 :         dst->blocks = zero_extend_signed_to_ull(buf.st_blocks);
      86                 :         75 :         dst->blksize = zero_extend_signed_to_ull(buf.st_blksize);
      87                 :         75 :         dst->mode = zero_extend_signed_to_ull(buf.st_mode);
      88                 :         75 :         dst->nlink = zero_extend_signed_to_ull(buf.st_nlink);
      89                 :         75 :         dst->uid = zero_extend_signed_to_ull(buf.st_uid);
      90                 :         75 :         dst->gid = zero_extend_signed_to_ull(buf.st_gid);
      91                 :         75 :         dst->atime = sign_extend_unsigned_to_ll(buf.st_atime);
      92                 :         75 :         dst->ctime = sign_extend_unsigned_to_ll(buf.st_ctime);
      93                 :         75 :         dst->mtime = sign_extend_unsigned_to_ll(buf.st_mtime);
      94                 :         75 :         dst->atime_nsec = TIME_NSEC(buf.st_atime_nsec);
      95                 :         75 :         dst->ctime_nsec = TIME_NSEC(buf.st_ctime_nsec);
      96                 :         75 :         dst->mtime_nsec = TIME_NSEC(buf.st_mtime_nsec);
      97                 :         98 :         return true;
      98                 :            : #else /* !HAVE_STRUCT_STAT */
      99                 :            :         printaddr(addr);
     100                 :            :         return false;
     101                 :            : #endif
     102                 :            : }