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/* mktemp.c - Create a temporary file or directory.
*
* Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
*
* http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/mktemp.html
USE_MKTEMP(NEWTOY(mktemp, ">1uqd(directory)p(tmpdir):t", TOYFLAG_BIN))
config MKTEMP
bool "mktemp"
default y
help
usage: mktemp [-dqu] [-p DIR] [TEMPLATE]
Safely create a new file "DIR/TEMPLATE" and print its name.
-d Create directory instead of file (--directory)
-p Put new file in DIR (--tmpdir)
-q Quiet, no error messages
-t Prefer $TMPDIR > DIR > /tmp (default DIR > $TMPDIR > /tmp)
-u Don't create anything, just print what would be created
Each X in TEMPLATE is replaced with a random printable character. The
default TEMPLATE is tmp.XXXXXXXXXX.
*/
#define FOR_mktemp
#include "toys.h"
GLOBALS(
char *p;
)
void mktemp_main(void)
{
char *template = *toys.optargs;
int use_dir = (toys.optflags & (FLAG_p|FLAG_t));
if (!template) {
template = "tmp.XXXXXXXXXX";
use_dir = 1;
}
// Normally, the precedence is DIR (if set), $TMPDIR (if set), /tmp.
// With -t it's $TMPDIR, DIR, /tmp.
if (use_dir) {
char *tmpdir = getenv("TMPDIR");
if (toys.optflags & FLAG_t) {
if (tmpdir && *tmpdir) TT.p = tmpdir;
} else {
if (!TT.p || !*TT.p) TT.p = tmpdir;
}
if (!TT.p || !*TT.p) TT.p = "/tmp";
}
// TODO: coreutils cleans paths, so -p /t/// would result in /t/xxx...
template = use_dir ? xmprintf("%s/%s", TT.p, template) : xstrdup(template);
if (toys.optflags & FLAG_u) {
xputs(mktemp(template));
} else if (toys.optflags & FLAG_d ? !mkdtemp(template) : mkstemp(template) == -1) {
if (toys.optflags & FLAG_q) toys.exitval = 1;
else perror_exit("Failed to create %s %s/%s",
toys.optflags & FLAG_d ? "directory" : "file", TT.p, template);
}
if (CFG_TOYBOX_FREE) free(template);
}
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