1/*- 2 * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/time.h> 31#include <errno.h> 32#include <ctype.h> 33#include <stdio.h> 34#include <string.h> 35#include <utmpx.h> 36 37static int 38b16_pton(const char *in, char *out, size_t len) 39{ 40 size_t i; 41 42 for (i = 0; i < len * 2; i++) 43 if (!isxdigit((unsigned char)in[i])) 44 return (1); 45 for (i = 0; i < len; i++) 46 sscanf(&in[i * 2], "%02hhx", &out[i]); 47 return (0); 48} 49 50int 51main(int argc, char *argv[]) 52{ 53 struct utmpx utx = { .ut_type = DEAD_PROCESS }; 54 size_t len; 55 int i, ret = 0; 56 57 if (argc < 2) { 58 fprintf(stderr, "usage: utxrm identifier ...\n"); 59 return (1); 60 } 61 62 gettimeofday(&utx.ut_tv, NULL); 63 for (i = 1; i < argc; i++) { 64 len = strlen(argv[i]); 65 if (len <= sizeof(utx.ut_id)) { 66 /* Identifier as string. */ 67 strncpy(utx.ut_id, argv[i], sizeof(utx.ut_id)); 68 } else if (len != sizeof(utx.ut_id) * 2 || 69 b16_pton(argv[i], utx.ut_id, sizeof(utx.ut_id)) != 0) { 70 /* Also not hexadecimal. */ 71 fprintf(stderr, "%s: Invalid identifier format\n", 72 argv[i]); 73 ret = 1; 74 continue; 75 } 76 77 /* Zap the entry. */ 78 if (pututxline(&utx) == NULL) { 79 perror(argv[i]); 80 ret = 1; 81 } 82 } 83 return (ret); 84} 85