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