111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 2011-2012 Ed Schouten <ed@FreeBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/time.h>
|
|
#include <errno.h>
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <utmpx.h>
|
|
|
|
static int
|
|
b16_pton(const char *in, char *out, size_t len)
|
|
{
|
|
size_t i;
|
|
|
|
for (i = 0; i < len * 2; i++)
|
|
if (!isxdigit((unsigned char)in[i]))
|
|
return (1);
|
|
for (i = 0; i < len; i++)
|
|
sscanf(&in[i * 2], "%02hhx", &out[i]);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
rm(char *id[])
|
|
{
|
|
struct utmpx utx = { .ut_type = DEAD_PROCESS };
|
|
size_t len;
|
|
int ret = 0;
|
|
|
|
(void)gettimeofday(&utx.ut_tv, NULL);
|
|
for (; *id != NULL; id++) {
|
|
len = strlen(*id);
|
|
if (len <= sizeof(utx.ut_id)) {
|
|
/* Identifier as string. */
|
|
strncpy(utx.ut_id, *id, sizeof(utx.ut_id));
|
|
} else if (len != sizeof(utx.ut_id) * 2 ||
|
|
b16_pton(*id, utx.ut_id, sizeof(utx.ut_id)) != 0) {
|
|
/* Also not hexadecimal. */
|
|
fprintf(stderr, "%s: Invalid identifier format\n", *id);
|
|
ret = 1;
|
|
continue;
|
|
}
|
|
|
|
/* Zap the entry. */
|
|
if (pututxline(&utx) == NULL) {
|
|
perror(*id);
|
|
ret = 1;
|
|
}
|
|
}
|
|
return (ret);
|
|
}
|
|
|
|
static int
|
|
boot(short type)
|
|
{
|
|
struct utmpx utx = { .ut_type = type };
|
|
|
|
(void)gettimeofday(&utx.ut_tv, NULL);
|
|
if (pututxline(&utx) == NULL) {
|
|
perror("pututxline");
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
|
|
if (argc == 2 && strcmp(argv[1], "boot") == 0)
|
|
return (boot(BOOT_TIME));
|
|
else if (argc == 2 && strcmp(argv[1], "shutdown") == 0)
|
|
return (boot(SHUTDOWN_TIME));
|
|
else if (argc >= 3 && strcmp(argv[1], "rm") == 0)
|
|
return (rm(&argv[2]));
|
|
|
|
fprintf(stderr,
|
|
"usage: utx boot\n"
|
|
" utx shutdown\n"
|
|
" utx rm identifier ...\n");
|
|
exit(1);
|
|
}
|