hush/debianutils/mktemp.c

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/* vi: set sw=4 ts=4: */
/*
* Mini mktemp implementation for busybox
*
*
* Copyright (C) 2000 by Daniel Jacobowitz
* Written by Daniel Jacobowitz <dan@debian.org>
*
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* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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*/
/* Coreutils 6.12 man page says:
* mktemp [OPTION]... [TEMPLATE]
* Create a temporary file or directory, safely, and print its name. If
* TEMPLATE is not specified, use tmp.XXXXXXXXXX.
* -d, --directory
* create a directory, not a file
* -q, --quiet
* suppress diagnostics about file/dir-creation failure
* -u, --dry-run
* do not create anything; merely print a name (unsafe)
* --tmpdir[=DIR]
* interpret TEMPLATE relative to DIR. If DIR is not specified,
* use $TMPDIR if set, else /tmp. With this option, TEMPLATE must
* not be an absolute name. Unlike with -t, TEMPLATE may contain
* slashes, but even here, mktemp still creates only the final com-
* ponent.
* -p DIR use DIR as a prefix; implies -t [deprecated]
* -t interpret TEMPLATE as a single file name component, relative to
* a directory: $TMPDIR, if set; else the directory specified via
* -p; else /tmp [deprecated]
*/
#include "libbb.h"
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int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int mktemp_main(int argc UNUSED_PARAM, char **argv)
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{
const char *path;
char *chp;
unsigned opt;
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opt_complementary = "?1"; /* 1 argument max */
opt = getopt32(argv, "dqtp:", &path);
chp = argv[optind] ? argv[optind] : xstrdup("tmp.XXXXXX");
if (opt & (4|8)) { /* -t and/or -p */
const char *dir = getenv("TMPDIR");
if (dir && *dir != '\0')
path = dir;
else if (!(opt & 8)) /* no -p */
path = "/tmp/";
/* else path comes from -p DIR */
chp = concat_path_file(path, chp);
}
if (opt & 1) { /* -d */
if (mkdtemp(chp) == NULL)
return EXIT_FAILURE;
} else {
if (mkstemp(chp) < 0)
return EXIT_FAILURE;
}
puts(chp);
return EXIT_SUCCESS;
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}