source: branches/3.2/mindi-busybox/debianutils/mktemp.c @ 3232

Last change on this file since 3232 was 3232, checked in by Bruno Cornec, 7 years ago
  • Update mindi-busybox to 1.21.1
File size: 3.3 KB
Line 
1/* 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 *
9 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
10 */
11
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.
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
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"
45//usage:     "\n"
46//usage:     "\nBase directory is: -p DIR, else $TMPDIR, else /tmp"
47//usage:
48//usage:#define mktemp_example_usage
49//usage:       "$ 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"
53
54#include "libbb.h"
55
56int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
57int mktemp_main(int argc UNUSED_PARAM, char **argv)
58{
59    const char *path;
60    char *chp;
61    unsigned opts;
62    enum {
63        OPT_d = 1 << 0,
64        OPT_q = 1 << 1,
65        OPT_t = 1 << 2,
66        OPT_p = 1 << 3,
67        OPT_u = 1 << 4,
68    };
69
70    path = getenv("TMPDIR");
71    if (!path || path[0] == '\0')
72        path = "/tmp";
73
74    opt_complementary = "?1"; /* 1 argument max */
75    opts = getopt32(argv, "dqtp:u", &path);
76
77    chp = argv[optind];
78    if (!chp) {
79        /* GNU coreutils 8.4:
80         * bare "mktemp" -> "mktemp -t tmp.XXXXXX"
81         */
82        chp = xstrdup("tmp.XXXXXX");
83        opts |= OPT_t;
84    }
85#if 0
86    /* Don't allow directory separator in template */
87    if ((opts & OPT_t) && bb_basename(chp) != chp) {
88        errno = EINVAL;
89        goto error;
90    }
91#endif
92    if (opts & (OPT_t|OPT_p))
93        chp = concat_path_file(path, chp);
94
95    if (opts & OPT_u) {
96        chp = mktemp(chp);
97        if (chp[0] == '\0')
98            goto error;
99    } else if (opts & OPT_d) {
100        if (mkdtemp(chp) == NULL)
101            goto error;
102    } else {
103        if (mkstemp(chp) < 0)
104            goto error;
105    }
106    puts(chp);
107    return EXIT_SUCCESS;
108 error:
109    if (opts & OPT_q)
110        return EXIT_FAILURE;
111    /* don't use chp as it gets mangled in case of error */
112    bb_perror_nomsg_and_die();
113}
Note: See TracBrowser for help on using the repository browser.