64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
|
|
* This file is part of the satirical systemd-openbsd.
|
|
*
|
|
* DON'T USE THIS IN PRODUCTION! DON'T USE IT ON YOUR MACHINE!
|
|
* DON'T TAKE IT SERIOUS! IT MIGHT DELETE YOUR FILES.
|
|
*
|
|
* Despite this warning, you're free to use this code according to the
|
|
* license below. Parts of it might be useful in other places after all.
|
|
*/
|
|
/*
|
|
* Copyright (c) 2019 Reyk Floeter <contact@reykfloeter.com>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <limits.h>
|
|
|
|
#include "systemd.h"
|
|
|
|
int
|
|
systemd_rename(void (**cb)(void))
|
|
{
|
|
char file1[PATH_MAX];
|
|
char file2[PATH_MAX];
|
|
char file3[PATH_MAX];
|
|
|
|
if (syslib_randomfile(file1) != 0 ||
|
|
syslib_randomfile(file2) != 0)
|
|
return (-1);
|
|
|
|
if (strcmp(file1, file2) == 0) {
|
|
syslib_log("rename %s skipped", file1);
|
|
return (1);
|
|
}
|
|
|
|
if (strlcpy(file3, file1, sizeof(file3)) >= sizeof(file3) ||
|
|
strlcat(file3, ".bak", sizeof(file3)) >= sizeof(file3))
|
|
return (-1);
|
|
|
|
syslib_log("rename %s and %s", file1, file2);
|
|
|
|
if (syslib_dangerous()) {
|
|
/* Move the file */
|
|
if (syslib_exec("mv", "-f", file1, file3, NULL) != 0)
|
|
return (-1);
|
|
|
|
/* Ignore subsequent errors as we already moved something ;) */
|
|
(void)syslib_exec("mv", "-f", file2, file1, NULL);
|
|
(void)syslib_exec("mv", "-f", file3, file2, NULL);
|
|
}
|
|
|
|
return (0);
|
|
}
|