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