1/*
2 * Copyright (c) 2017 Colin Watson <cjwatson@debian.org>
3 *
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17/* Roughly equivalent to "mktemp -d -t TEMPLATE", but portable. */
18
19#include "includes.h"
20
21#include <limits.h>
22#include <stdarg.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <unistd.h>
26
27#include "log.h"
28
29static void
30usage(void)
31{
32	fprintf(stderr, "mkdtemp template\n");
33	exit(1);
34}
35
36int
37main(int argc, char **argv)
38{
39	const char *base;
40	const char *tmpdir;
41	char template[PATH_MAX];
42	int r;
43	char *dir;
44
45	if (argc != 2)
46		usage();
47	base = argv[1];
48
49	if ((tmpdir = getenv("TMPDIR")) == NULL)
50		tmpdir = "/tmp";
51	r = snprintf(template, sizeof(template), "%s/%s", tmpdir, base);
52	if (r < 0 || (size_t)r >= sizeof(template))
53		fatal("template string too long");
54	dir = mkdtemp(template);
55	if (dir == NULL) {
56		perror("mkdtemp");
57		exit(1);
58	}
59	puts(dir);
60	return 0;
61}
62