1 /* Copyright (C) 1991,1993,1996-1999,2000 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, write to the Free 16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 17 02111-1307 USA. 18 */ 19 20 21 #include <stdio_private.h> 22 23 24 /** Generate a unique filename in P_tmpdir. If S is NULL return NULL. 25 * This makes this function thread safe. 26 */ 27 28 char * 29 tmpnam_r(char *s) 30 { 31 if (s == NULL) 32 return NULL; 33 34 if (__path_search(s, L_tmpnam, NULL, NULL, 0)) 35 return NULL; 36 if (__gen_tempname(s, __GT_NOCREATE)) 37 return NULL; 38 39 return s; 40 } 41 42 //link_warning (tmpnam_r, "the use of `tmpnam_r' is dangerous, better use `mkstemp'") 43