[ff36f5e] | 1 | /* $NetBSD: misc.c,v 1.6 2008/07/15 00:47:09 mgrooms Exp $ */ |
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| 2 | |
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| 3 | /* $KAME: misc.c,v 1.23 2001/08/16 14:37:29 itojun Exp $ */ |
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| 4 | |
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| 5 | /* |
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| 6 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions |
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| 11 | * are met: |
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| 12 | * 1. Redistributions of source code must retain the above copyright |
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| 13 | * notice, this list of conditions and the following disclaimer. |
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer in the |
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| 16 | * documentation and/or other materials provided with the distribution. |
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| 17 | * 3. Neither the name of the project nor the names of its contributors |
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| 18 | * may be used to endorse or promote products derived from this software |
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| 19 | * without specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 31 | * SUCH DAMAGE. |
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| 32 | */ |
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| 33 | |
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| 34 | #include "config.h" |
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| 35 | |
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| 36 | #include <sys/types.h> |
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| 37 | #include <sys/param.h> |
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| 38 | #include <sys/stat.h> |
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| 39 | #include <sys/time.h> |
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| 40 | |
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| 41 | #include <stdlib.h> |
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| 42 | #include <stdio.h> |
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| 43 | #include <string.h> |
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| 44 | #include <errno.h> |
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| 45 | #include <syslog.h> |
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| 46 | #include <ctype.h> |
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| 47 | #include <fcntl.h> |
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| 48 | |
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| 49 | #include "var.h" |
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| 50 | #include "misc.h" |
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| 51 | #include "debug.h" |
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| 52 | |
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| 53 | #if 0 |
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| 54 | static int bindump __P((void *, size_t)); |
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| 55 | |
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| 56 | static int |
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| 57 | bindump(buf0, len) |
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| 58 | void *buf0; |
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| 59 | size_t len; |
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| 60 | { |
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| 61 | unsigned char *buf = (unsigned char *)buf0; |
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| 62 | size_t i; |
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| 63 | |
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| 64 | for (i = 0; i < len; i++) { |
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| 65 | if ((buf[i] & 0x80) || !isprint(buf[i])) |
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| 66 | printf("\\x%x", buf[i]); |
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| 67 | else |
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| 68 | printf("%c", buf[i]); |
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| 69 | } |
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| 70 | printf("\n"); |
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| 71 | |
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| 72 | return 0; |
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| 73 | } |
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| 74 | #endif |
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| 75 | |
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| 76 | int |
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| 77 | racoon_hexdump(buf0, len) |
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| 78 | void *buf0; |
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| 79 | size_t len; |
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| 80 | { |
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| 81 | caddr_t buf = (caddr_t)buf0; |
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| 82 | size_t i; |
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| 83 | |
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| 84 | for (i = 0; i < len; i++) { |
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| 85 | if (i != 0 && i % 32 == 0) |
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| 86 | printf("\n"); |
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| 87 | if (i % 4 == 0) |
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| 88 | printf(" "); |
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| 89 | printf("%02x", (unsigned char)buf[i]); |
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| 90 | } |
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| 91 | printf("\n"); |
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| 92 | |
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| 93 | return 0; |
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| 94 | } |
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| 95 | |
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| 96 | char * |
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| 97 | bit2str(n, bl) |
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| 98 | int n, bl; |
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| 99 | { |
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| 100 | #define MAXBITLEN 128 |
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| 101 | static char b[MAXBITLEN + 1]; |
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| 102 | int i; |
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| 103 | |
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| 104 | if (bl > MAXBITLEN) |
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| 105 | return "Failed to convert."; /* NG */ |
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| 106 | memset(b, '0', bl); |
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| 107 | b[bl] = '\0'; |
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| 108 | |
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| 109 | for (i = 0; i < bl; i++) { |
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| 110 | if (n & (1 << i)) |
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| 111 | b[bl - 1 - i] = '1'; |
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| 112 | } |
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| 113 | |
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| 114 | return b; |
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| 115 | } |
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| 116 | |
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| 117 | const char * |
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| 118 | debug_location(file, line, func) |
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| 119 | const char *file; |
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| 120 | int line; |
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| 121 | const char *func; |
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| 122 | { |
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| 123 | static char buf[1024]; |
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| 124 | const char *p; |
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| 125 | |
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| 126 | /* truncate pathname */ |
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| 127 | p = strrchr(file, '/'); |
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| 128 | if (p) |
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| 129 | p++; |
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| 130 | else |
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| 131 | p = file; |
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| 132 | |
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| 133 | if (func) |
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| 134 | snprintf(buf, sizeof(buf), "%s:%d:%s()", p, line, func); |
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| 135 | else |
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| 136 | snprintf(buf, sizeof(buf), "%s:%d", p, line); |
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| 137 | |
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| 138 | return buf; |
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| 139 | } |
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| 140 | |
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| 141 | /* |
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| 142 | * get file size. |
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| 143 | * -1: error occured. |
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| 144 | */ |
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| 145 | int |
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| 146 | getfsize(path) |
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| 147 | char *path; |
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| 148 | { |
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| 149 | struct stat st; |
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| 150 | |
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| 151 | if (stat(path, &st) != 0) |
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| 152 | return -1; |
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| 153 | else |
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| 154 | return st.st_size; |
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| 155 | } |
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| 156 | |
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| 157 | /* |
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| 158 | * set the close-on-exec flag for file descriptor fd. |
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| 159 | */ |
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| 160 | void |
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| 161 | close_on_exec(fd) |
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| 162 | int fd; |
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| 163 | { |
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| 164 | fcntl(fd, F_SETFD, FD_CLOEXEC); |
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| 165 | } |
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| 166 | |
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| 167 | /* |
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| 168 | * calculate the difference between two times. |
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| 169 | * t1: start |
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| 170 | * t2: end |
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| 171 | */ |
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| 172 | double |
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| 173 | timedelta(t1, t2) |
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| 174 | struct timeval *t1, *t2; |
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| 175 | { |
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| 176 | if (t2->tv_usec >= t1->tv_usec) |
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| 177 | return t2->tv_sec - t1->tv_sec + |
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| 178 | (double)(t2->tv_usec - t1->tv_usec) / 1000000; |
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| 179 | |
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| 180 | return t2->tv_sec - t1->tv_sec - 1 + |
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| 181 | (double)(1000000 + t2->tv_usec - t1->tv_usec) / 1000000; |
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| 182 | } |
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