blob: 007cb1c5b6e4d8eb2cc1bd632d0f19b5dd11d41b [file] [log] [blame]
Erik Andersen227a59b2000-04-25 23:24:55 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Mini mktemp implementation for busybox
4 *
5 *
6 * Copyright (C) 2000 by Daniel Jacobowitz
7 * Written by Daniel Jacobowitz <dan@debian.org>
8 *
Denys Vlasenko0ef64bd2010-08-16 20:14:46 +02009 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
Erik Andersen227a59b2000-04-25 23:24:55 +000010 */
11
Denis Vlasenkoc05b1682008-06-05 12:06:00 +000012/* 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.
16 * -d, --directory
17 * create a directory, not a file
18 * -q, --quiet
19 * suppress diagnostics about file/dir-creation failure
20 * -u, --dry-run
21 * do not create anything; merely print a name (unsafe)
22 * --tmpdir[=DIR]
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-
27 * ponent.
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]
32 */
33
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010034//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"
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010040//usage: "\n -d Make directory, not file"
41////usage: "\n -q Fail silently on errors" - we ignore this opt
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"
45//usage: "\nBase directory is: -p DIR, else $TMPDIR, else /tmp"
46//usage:
47//usage:#define mktemp_example_usage
48//usage: "$ mktemp /tmp/temp.XXXXXX\n"
49//usage: "/tmp/temp.mWiLjM\n"
50//usage: "$ ls -la /tmp/temp.mWiLjM\n"
51//usage: "-rw------- 1 andersen andersen 0 Apr 25 17:10 /tmp/temp.mWiLjM\n"
Denis Vlasenkoc05b1682008-06-05 12:06:00 +000052
Denis Vlasenkob6adbf12007-05-26 19:00:18 +000053#include "libbb.h"
Erik Andersen227a59b2000-04-25 23:24:55 +000054
Denis Vlasenko9b49a5e2007-10-11 10:05:36 +000055int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
Denis Vlasenkoa60f84e2008-07-05 09:18:54 +000056int mktemp_main(int argc UNUSED_PARAM, char **argv)
Erik Andersen227a59b2000-04-25 23:24:55 +000057{
Denis Vlasenko65581f32008-02-09 06:26:53 +000058 const char *path;
Bernhard Reutner-Fischer1ac42bf2006-10-10 15:28:41 +000059 char *chp;
Denys Vlasenko9b814ca2010-06-18 03:16:27 +020060 unsigned opts;
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010061 enum {
62 OPT_d = 1 << 0,
63 OPT_q = 1 << 1,
64 OPT_t = 1 << 2,
65 OPT_p = 1 << 3,
66 };
Tim Rikerc1ef7bd2006-01-25 00:08:53 +000067
Denys Vlasenko9b814ca2010-06-18 03:16:27 +020068 path = getenv("TMPDIR");
69 if (!path || path[0] == '\0')
70 path = "/tmp";
71
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010072 /* -q is ignored */
Denis Vlasenkoc05b1682008-06-05 12:06:00 +000073 opt_complementary = "?1"; /* 1 argument max */
Denys Vlasenko9b814ca2010-06-18 03:16:27 +020074 opts = getopt32(argv, "dqtp:", &path);
75
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010076 chp = argv[optind];
77 if (!chp) {
78 /* GNU coreutils 8.4:
79 * bare "mktemp" -> "mktemp -t tmp.XXXXXX"
80 */
81 chp = xstrdup("tmp.XXXXXX");
82 opts |= OPT_t;
83 }
84 if (opts & (OPT_t|OPT_p))
Denys Vlasenko04a5d5a2010-07-12 03:43:39 +020085 chp = concat_path_file(path, chp);
Bernhard Reutner-Fischer1ac42bf2006-10-10 15:28:41 +000086
Denys Vlasenko4ed3c522011-02-13 17:38:34 +010087 if (opts & OPT_d) {
Bernhard Reutner-Fischer1ac42bf2006-10-10 15:28:41 +000088 if (mkdtemp(chp) == NULL)
89 return EXIT_FAILURE;
90 } else {
91 if (mkstemp(chp) < 0)
Rob Landleyb5ca9e02005-12-02 17:54:01 +000092 return EXIT_FAILURE;
Glenn L McGrath69f28e72003-04-26 04:56:17 +000093 }
94
Bernhard Reutner-Fischer1ac42bf2006-10-10 15:28:41 +000095 puts(chp);
Glenn L McGrath69f28e72003-04-26 04:56:17 +000096
Matt Kraai3e856ce2000-12-01 02:55:13 +000097 return EXIT_SUCCESS;
Erik Andersen227a59b2000-04-25 23:24:55 +000098}