| 1 | /* Copyright (C) 2008-2024 Free Software Foundation, Inc. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | |
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| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |
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| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, see |
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| 16 | <https://www.gnu.org/licenses/>. */ |
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| 17 | |
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| 18 | |
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| 19 | /* This file provides functions converting between the 32 and 64 bit |
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| 20 | struct utmp variants. */ |
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| 21 | |
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| 22 | #ifndef _UTMPX_CONVERT_H |
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| 23 | #define _UTMPX_CONVERT_H 1 |
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| 24 | |
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| 25 | #include <string.h> |
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| 26 | #include "utmpx32.h" |
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| 27 | |
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| 28 | /* Convert the 64 bit struct utmpx value in FROM to the 32 bit version |
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| 29 | returned in TO. */ |
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| 30 | static inline void |
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| 31 | utmpx_convert64to32 (const struct utmpx *from, struct utmpx32 *to) |
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| 32 | { |
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| 33 | #if _HAVE_UT_TYPE - 0 |
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| 34 | to->ut_type = from->ut_type; |
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| 35 | #endif |
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| 36 | #if _HAVE_UT_PID - 0 |
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| 37 | to->ut_pid = from->ut_pid; |
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| 38 | #endif |
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| 39 | memcpy (to->ut_line, from->ut_line, __UT_LINESIZE); |
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| 40 | memcpy (to->ut_user, from->ut_user, __UT_NAMESIZE); |
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| 41 | #if _HAVE_UT_ID - 0 |
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| 42 | memcpy (to->ut_id, from->ut_id, 4); |
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| 43 | #endif |
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| 44 | #if _HAVE_UT_HOST - 0 |
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| 45 | memcpy (to->ut_host, from->ut_host, __UT_HOSTSIZE); |
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| 46 | #endif |
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| 47 | to->ut_exit = from->ut_exit; |
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| 48 | to->ut_session = (int32_t) from->ut_session; |
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| 49 | #if _HAVE_UT_TV - 0 |
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| 50 | to->ut_tv.tv_sec = (int32_t) from->ut_tv.tv_sec; |
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| 51 | to->ut_tv.tv_usec = (int32_t) from->ut_tv.tv_usec; |
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| 52 | #endif |
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| 53 | memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4); |
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| 54 | } |
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| 55 | |
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| 56 | /* Convert the 32 bit struct utmpx value in FROM to the 64 bit version |
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| 57 | returned in TO. */ |
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| 58 | static inline void |
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| 59 | utmpx_convert32to64 (const struct utmpx32 *from, struct utmpx *to) |
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| 60 | { |
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| 61 | #if _HAVE_UT_TYPE - 0 |
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| 62 | to->ut_type = from->ut_type; |
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| 63 | #endif |
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| 64 | #if _HAVE_UT_PID - 0 |
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| 65 | to->ut_pid = from->ut_pid; |
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| 66 | #endif |
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| 67 | memcpy (to->ut_line, from->ut_line, __UT_LINESIZE); |
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| 68 | memcpy (to->ut_user, from->ut_user, __UT_NAMESIZE); |
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| 69 | #if _HAVE_UT_ID - 0 |
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| 70 | memcpy (to->ut_id, from->ut_id, 4); |
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| 71 | #endif |
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| 72 | #if _HAVE_UT_HOST - 0 |
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| 73 | memcpy (to->ut_host, from->ut_host, __UT_HOSTSIZE); |
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| 74 | #endif |
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| 75 | to->ut_exit = from->ut_exit; |
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| 76 | to->ut_session = (int64_t) from->ut_session; |
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| 77 | #if _HAVE_UT_TV - 0 |
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| 78 | to->ut_tv.tv_sec = (int64_t) from->ut_tv.tv_sec; |
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| 79 | to->ut_tv.tv_usec = (int64_t) from->ut_tv.tv_usec; |
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| 80 | #endif |
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| 81 | memcpy (to->ut_addr_v6, from->ut_addr_v6, 4 * 4); |
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| 82 | } |
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| 83 | |
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| 84 | #endif /* utmpx-convert.h */ |
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| 85 | |
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