others
/* $Id$ */
/* Copyright (c) 2006-2015 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Unix others */
/* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <sys/time.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifndef PROGNAME
# define PROGNAME "mktemp"
#endif
/* mktemp */
/* private */
/* prototypes */
static int _mktemp(char const * template);
static int _mktemp_error(char const * message, int ret);
static int _mktemp_usage(void);
/* functions */
/* mktemp */
static int _mktemp(char const * template)
{
int ret = 0;
char * t;
int fd;
struct timeval tv;
if((t = strdup(template)) == NULL)
return _mktemp_error("strdup", 1);
if(gettimeofday(&tv, NULL) != 0)
{
free(t);
return _mktemp_error("gettimeofday", 1);
}
srand(tv.tv_sec ^ tv.tv_usec ^ getuid() ^ (getpid() << 16));
if((fd = mkstemp(t)) == -1
|| close(fd) != 0)
{
ret = _mktemp_error(t, 1);
free(t);
return ret;
}
printf("%s\n", t);
free(t);
return ret;
}
/* mktemp_error */
static int _mktemp_error(char const * message, int ret)
{
fputs(PROGNAME ": ", stderr);
perror(message);
return ret;
}
/* mktemp_usage */
static int _mktemp_usage(void)
{
fputs("Usage: " PROGNAME " [-d] [template]\n\
-d make a directory instead of a file\n", stderr);
return 1;
}
/* public */
/* functions */
/* main */
int main(int argc, char * argv[])
{
int o;
char const * template = P_tmpdir "/tmp.XXXXXX";
while((o = getopt(argc, argv, "")) != -1)
switch(o)
{
case '?':
return _mktemp_usage();
}
if(optind + 1 < argc)
return _mktemp_usage();
if(optind + 1 == argc)
return _mktemp(argv[optind]);
return (_mktemp(template) == 0) ? 0 : 2;
}