sysdeps/unix/sysv/linux/s390/s390-32/utmp-convert.h

   1 /* Copyright (C) 2008-2018 Free Software Foundation, Inc.
   2    Contributed by Andreas Krebbel <Andreas.Krebbel@de.ibm.com>.
   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
   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.
   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
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19
  20 /* This file provides functions converting between the 32 and 64 bit
  21    struct utmp variants.  */
  22
  23 #ifndef _UTMP_CONVERT_H
  24 #define _UTMP_CONVERT_H 1
  25
  26 #include <string.h>
  27
  28 #include "utmp32.h"
  29
  30 /* Convert the 64 bit struct utmp value in FROM to the 32 bit version
  31    returned in TO.  */
  32 static inline void
  33 utmp_convert64to32 (const struct utmp *from, struct utmp32 *to)
  34 {
  35 #if _HAVE_UT_TYPE - 0
  36   to->ut_type = from->ut_type;
  37 #endif
  38 #if _HAVE_UT_PID - 0
  39   to->ut_pid = from->ut_pid;
  40 #endif
  41   memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
  42   memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
  43 #if _HAVE_UT_ID - 0
  44   memcpy (to->ut_id, from->ut_id, 4);
  45 #endif
  46 #if _HAVE_UT_HOST - 0
  47   memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
  48 #endif
  49   to->ut_exit = from->ut_exit;
  50   to->ut_session = (int32_t) from->ut_session;
  51 #if _HAVE_UT_TV - 0
  52   to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec;
  53   to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec;
  54 #endif
  55   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  56 }
  57
  58 /* Convert the 32 bit struct utmp value in FROM to the 64 bit version
  59    returned in TO.  */
  60 static inline void
  61 utmp_convert32to64 (const struct utmp32 *from, struct utmp *to)
  62 {
  63 #if _HAVE_UT_TYPE - 0
  64   to->ut_type = from->ut_type;
  65 #endif
  66 #if _HAVE_UT_PID - 0
  67   to->ut_pid = from->ut_pid;
  68 #endif
  69   memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
  70   memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
  71 #if _HAVE_UT_ID - 0
  72   memcpy (to->ut_id, from->ut_id, 4);
  73 #endif
  74 #if _HAVE_UT_HOST - 0
  75   memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
  76 #endif
  77   to->ut_exit = from->ut_exit;
  78   to->ut_session = (int64_t) from->ut_session;
  79 #if _HAVE_UT_TV - 0
  80   to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec;
  81   to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec;
  82 #endif
  83   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  84 }
  85
  86 #endif /* utmp-convert.h */