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

   1 /* Copyright (C) 2008-2024 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18
  19 /* This file provides functions converting between the 32 and 64 bit
  20    struct utmp variants.  */
  21
  22 #ifndef _UTMPX_CONVERT_H
  23 #define _UTMPX_CONVERT_H 1
  24
  25 #include <string.h>
  26 #include "utmpx32.h"
  27
  28 /* Convert the 64 bit struct utmpx value in FROM to the 32 bit version
  29    returned in TO.  */
  30 static inline void
  31 utmpx_convert64to32 (const struct utmpx *from, struct utmpx32 *to)
  32 {
  33 #if _HAVE_UT_TYPE - 0
  34   to->ut_type = from->ut_type;
  35 #endif
  36 #if _HAVE_UT_PID - 0
  37   to->ut_pid = from->ut_pid;
  38 #endif
  39   memcpy (to->ut_line, from->ut_line, __UT_LINESIZE);
  40   memcpy (to->ut_user, from->ut_user, __UT_NAMESIZE);
  41 #if _HAVE_UT_ID - 0
  42   memcpy (to->ut_id, from->ut_id, 4);
  43 #endif
  44 #if _HAVE_UT_HOST - 0
  45   memcpy (to->ut_host, from->ut_host, __UT_HOSTSIZE);
  46 #endif
  47   to->ut_exit = from->ut_exit;
  48   to->ut_session = (int32_t) from->ut_session;
  49 #if _HAVE_UT_TV - 0
  50   to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec;
  51   to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec;
  52 #endif
  53   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  54 }
  55
  56 /* Convert the 32 bit struct utmpx value in FROM to the 64 bit version
  57    returned in TO.  */
  58 static inline void
  59 utmpx_convert32to64 (const struct utmpx32 *from, struct utmpx *to)
  60 {
  61 #if _HAVE_UT_TYPE - 0
  62   to->ut_type = from->ut_type;
  63 #endif
  64 #if _HAVE_UT_PID - 0
  65   to->ut_pid = from->ut_pid;
  66 #endif
  67   memcpy (to->ut_line, from->ut_line, __UT_LINESIZE);
  68   memcpy (to->ut_user, from->ut_user, __UT_NAMESIZE);
  69 #if _HAVE_UT_ID - 0
  70   memcpy (to->ut_id, from->ut_id, 4);
  71 #endif
  72 #if _HAVE_UT_HOST - 0
  73   memcpy (to->ut_host, from->ut_host, __UT_HOSTSIZE);
  74 #endif
  75   to->ut_exit = from->ut_exit;
  76   to->ut_session = (int64_t) from->ut_session;
  77 #if _HAVE_UT_TV - 0
  78   to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec;
  79   to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec;
  80 #endif
  81   memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4);
  82 }
  83
  84 #endif /* utmpx-convert.h */