1 /* vi: set sw=4 ts=4: */
3 * Mini mktemp implementation for busybox
6 * Copyright (C) 2000 by Daniel Jacobowitz
7 * Written by Daniel Jacobowitz <dan@debian.org>
9 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
12 /* Coreutils 6.12 man page says:
13 * mktemp [OPTION]... [TEMPLATE]
14 * Create a temporary file or directory, safely, and print its name. If
15 * TEMPLATE is not specified, use tmp.XXXXXXXXXX.
17 * create a directory, not a file
19 * suppress diagnostics about file/dir-creation failure
21 * do not create anything; merely print a name (unsafe)
23 * interpret TEMPLATE relative to DIR. If DIR is not specified,
24 * use $TMPDIR if set, else /tmp. With this option, TEMPLATE must
25 * not be an absolute name. Unlike with -t, TEMPLATE may contain
26 * slashes, but even here, mktemp still creates only the final com-
28 * -p DIR use DIR as a prefix; implies -t [deprecated]
29 * -t interpret TEMPLATE as a single file name component, relative to
30 * a directory: $TMPDIR, if set; else the directory specified via
31 * -p; else /tmp [deprecated]
34 //usage:#define mktemp_trivial_usage
35 //usage: "[-dt] [-p DIR] [TEMPLATE]"
36 //usage:#define mktemp_full_usage "\n\n"
37 //usage: "Create a temporary file with name based on TEMPLATE and print its name.\n"
38 //usage: "TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).\n"
39 //usage: "Without TEMPLATE, -t tmp.XXXXXX is assumed.\n"
40 //usage: "\n -d Make directory, not file"
41 //usage: "\n -q Fail silently on errors"
42 //usage: "\n -t Prepend base directory name to TEMPLATE"
43 //usage: "\n -p DIR Use DIR as a base directory (implies -t)"
44 //usage: "\n -u Do not create anything; print a name"
46 //usage: "\nBase directory is: -p DIR, else $TMPDIR, else /tmp"
48 //usage:#define mktemp_example_usage
49 //usage: "$ mktemp /tmp/temp.XXXXXX\n"
50 //usage: "/tmp/temp.mWiLjM\n"
51 //usage: "$ ls -la /tmp/temp.mWiLjM\n"
52 //usage: "-rw------- 1 andersen andersen 0 Apr 25 17:10 /tmp/temp.mWiLjM\n"
56 int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
57 int mktemp_main(int argc UNUSED_PARAM, char **argv)
70 path = getenv("TMPDIR");
71 if (!path || path[0] == '\0')
74 opt_complementary = "?1"; /* 1 argument max */
75 opts = getopt32(argv, "dqtp:u", &path);
80 * bare "mktemp" -> "mktemp -t tmp.XXXXXX"
82 chp = xstrdup("tmp.XXXXXX");
86 /* Don't allow directory separator in template */
87 if ((opts & OPT_t) && bb_basename(chp) != chp) {
92 if (opts & (OPT_t|OPT_p))
93 chp = concat_path_file(path, chp);
99 } else if (opts & OPT_d) {
100 if (mkdtemp(chp) == NULL)
103 if (mkstemp(chp) < 0)
111 /* don't use chp as it gets mangled in case of error */
112 bb_perror_nomsg_and_die();