1 /* Create a temporary file or directory. 2 3 Copyright (C) 2006 Free Software Foundation, Inc. 4 5 This program is free software: you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program 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 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 /* header written by Eric Blake */ 19 20 /* In gnulib, always prefer large files. GT_FILE maps to 21 __GT_BIGFILE, not __GT_FILE, for a reason. */ 22 #define GT_FILE 1 23 #define GT_DIR 2 24 #define GT_NOCREATE 3 25 26 /* Generate a temporary file name based on TMPL. TMPL must match the 27 rules for mk[s]temp (i.e. end in "XXXXXX"). The name constructed 28 does not exist at the time of the call to gen_tempname. TMPL is 29 overwritten with the result. 30 31 KIND may be one of: 32 GT_NOCREATE: simply verify that the name does not exist 33 at the time of the call. 34 GT_FILE: create a large file using open(O_CREAT|O_EXCL) 35 and return a read-write fd. The file is mode 0600. 36 GT_DIR: create a directory, which will be mode 0700. 37 38 We use a clever algorithm to get hard-to-predict names. */ 39 extern int gen_tempname (char *tmpl, int kind); 40
