1 /* Copyright (C) 1996-2022 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 #include <stdlib.h> 19 #include <utmp.h> 20 21 22 /* Local buffer to store the result. */ 23 libc_freeres_ptr (static struct utmp *buffer); 24 25 struct utmp * __getutid(const struct utmp * id)26__getutid (const struct utmp *id) 27 { 28 struct utmp *result; 29 30 if (buffer == NULL) 31 { 32 buffer = (struct utmp *) malloc (sizeof (struct utmp)); 33 if (buffer == NULL) 34 return NULL; 35 } 36 if (__getutid_r (id, buffer, &result) < 0) 37 return NULL; 38 39 return result; 40 } 41 libc_hidden_def (__getutid) 42 weak_alias (__getutid, getutid) 43