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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>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
/* 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: $TMPDIR, if set; else the directory specified via
* -p; else /tmp [deprecated]
*/
//config:config MKTEMP
//config: bool "mktemp (4.2 kb)"
//config: default y
//config: help
//config: mktemp is used to create unique temporary files
//applet:IF_MKTEMP(APPLET_NOEXEC(mktemp, mktemp, BB_DIR_BIN, BB_SUID_DROP, mktemp))
//kbuild:lib-$(CONFIG_MKTEMP) += mktemp.o
//usage:#define mktemp_trivial_usage
//usage: "[-dt] [-p DIR] [TEMPLATE]"
//usage:#define mktemp_full_usage "\n\n"
//usage: "Create a temporary file with name based on TEMPLATE and print its name.\n"
//usage: "TEMPLATE must end with XXXXXX (e.g. [/dir/]nameXXXXXX).\n"
//usage: "Without TEMPLATE, -t tmp.XXXXXX is assumed.\n"
//usage: "\n -d Make directory, not file"
//usage: "\n -q Fail silently on errors"
//usage: "\n -t Prepend base directory name to TEMPLATE"
//usage: "\n -p DIR Use DIR as a base directory (implies -t)"
//usage: "\n -u Do not create anything; print a name"
//usage: "\n"
//usage: "\nBase directory is: -p DIR, else $TMPDIR, else /tmp"
//usage:
//usage:#define mktemp_example_usage
//usage: "$ mktemp /tmp/temp.XXXXXX\n"
//usage: "/tmp/temp.mWiLjM\n"
//usage: "$ ls -la /tmp/temp.mWiLjM\n"
//usage: "-rw------- 1 andersen andersen 0 Apr 25 17:10 /tmp/temp.mWiLjM\n"
#include "libbb.h"
int mktemp_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int mktemp_main(int argc UNUSED_PARAM, char **argv)
{
const char *path;
char *chp;
unsigned opts;
enum {
OPT_d = 1 << 0,
OPT_q = 1 << 1,
OPT_t = 1 << 2,
OPT_p = 1 << 3,
OPT_u = 1 << 4,
OPT_tmpdir = (1 << 5) * ENABLE_LONG_OPTS,
};
path = getenv("TMPDIR");
if (!path || path[0] == '\0')
path = "/tmp";
#if ENABLE_LONG_OPTS
opts = getopt32long(argv, "^"
"dqtp:u"
"\0"
"?1" /* 1 arg max */,
"directory\0" No_argument "d"
"quiet\0" No_argument "q"
"dry-run\0" No_argument "u"
"tmpdir\0" Optional_argument "\xff"
, &path, &path
);
#else
opts = getopt32(argv, "^" "dqtp:u" "\0" "?1"/*1 arg max*/, &path);
#endif
chp = argv[optind];
if (!chp) {
/* GNU coreutils 8.4:
* bare "mktemp" -> "mktemp -t tmp.XXXXXX"
*/
chp = xstrdup("tmp.XXXXXX");
opts |= OPT_t;
}
#if 0
/* Don't allow directory separator in template */
if ((opts & OPT_t) && bb_basename(chp) != chp) {
errno = EINVAL;
goto error;
}
#endif
if (opts & (OPT_t|OPT_p|OPT_tmpdir))
chp = concat_path_file(path, chp);
if (opts & OPT_u) {
chp = mktemp(chp);
if (chp[0] == '\0')
goto error;
} else if (opts & OPT_d) {
if (mkdtemp(chp) == NULL)
goto error;
} else {
if (mkstemp(chp) < 0)
goto error;
}
puts(chp);
return EXIT_SUCCESS;
error:
if (opts & OPT_q)
return EXIT_FAILURE;
/* don't use chp as it gets mangled in case of error */
bb_perror_nomsg_and_die();
}
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