toys/lsb/mktemp.c

/* 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, ">1q(directory)d(tmpdir)p:", TOYFLAG_BIN))

config MKTEMP
  bool "mktemp"
  default y
  help
    usage: mktemp [-dq] [-p DIR] [TEMPLATE]

    Safely create new file and print its name. Default TEMPLATE is
    /tmp/tmp.XXXXXX and each trailing X is replaced with random char.

    -d, --directory        Create directory instead of file
    -p DIR, --tmpdir=DIR   Put new file in DIR
    -q                     Quiet
*/

#define FOR_mktemp
#include "toys.h"

GLOBALS(
  char * tmpdir;
)

void mktemp_main(void)
{
  int  d_flag = toys.optflags & FLAG_d;
  char *tmp;

  tmp = *toys.optargs;

  if (!tmp) {
    if (!TT.tmpdir) TT.tmpdir = "/tmp";
    tmp = "tmp.xxxxxx";
  }
  if (TT.tmpdir) tmp = xmprintf("%s/%s", TT.tmpdir ? TT.tmpdir : "/tmp",
    *toys.optargs ? *toys.optargs : "tmp.XXXXXX");

  if (d_flag ? mkdtemp(tmp) == NULL : mkstemp(tmp) == -1)
    if (toys.optflags & FLAG_q)
      perror_exit("Failed to create temporary %s",
        d_flag ? "directory" : "file");

  xputs(tmp);

  if (CFG_TOYBOX_FREE && TT.tmpdir) free(tmp);
}