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

   1 /* Copyright (C) 2008 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, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21
  22 /* This file provides functions converting between the 32 and 64 bit
  23    struct utmp variants.  */
  24
  25 #ifndef _UTMP_CONVERT_H
  26 #define _UTMP_CONVERT_H 1
  27
  28 #include <string.h>
  29
  30 #include "utmp32.h"
  31
  32 /* Convert the 64 bit struct utmp value in FROM to the 32 bit version
  33    returned in TO.  */
  34 static inline void
  35 utmp_convert64to32 (__const struct utmp *from, struct utmp32 *to)
  36 {
  37 #if _HAVE_UT_TYPE - 0
  38   to->ut_type = from->ut_type;
  39 #endif
  40 #if _HAVE_UT_PID - 0
  41   to->ut_pid = from->ut_pid;
  42 #endif
  43   memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
  44   memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
  45 #if _HAVE_UT_ID - 0
  46   memcpy (to->ut_id, from->ut_id, 4);
  47 #endif
  48 #if _HAVE_UT_HOST - 0
  49   memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
  50 #endif
  51   to->ut_exit = from->ut_exit;
  52   to->ut_session = (int32_t) from->ut_session;
  53 #if _HAVE_UT_TV - 0
  54   to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec;
  55   to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec;
  56 #endif
  57   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  58 }
  59
  60 /* Convert the 32 bit struct utmp value in FROM to the 64 bit version
  61    returned in TO.  */
  62 static inline void
  63 utmp_convert32to64 (__const struct utmp32 *from, struct utmp *to)
  64 {
  65 #if _HAVE_UT_TYPE - 0
  66   to->ut_type = from->ut_type;
  67 #endif
  68 #if _HAVE_UT_PID - 0
  69   to->ut_pid = from->ut_pid;
  70 #endif
  71   memcpy (to->ut_line, from->ut_line, UT_LINESIZE);
  72   memcpy (to->ut_user, from->ut_user, UT_NAMESIZE);
  73 #if _HAVE_UT_ID - 0
  74   memcpy (to->ut_id, from->ut_id, 4);
  75 #endif
  76 #if _HAVE_UT_HOST - 0
  77   memcpy (to->ut_host, from->ut_host, UT_HOSTSIZE);
  78 #endif
  79   to->ut_exit = from->ut_exit;
  80   to->ut_session = (int64_t) from->ut_session;
  81 #if _HAVE_UT_TV - 0
  82   to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec;
  83   to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec;
  84 #endif
  85   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  86 }
  87
  88 #endif /* utmp-convert.h */