1 | /* vi: set sw=4 ts=4: */
|
---|
2 | /*
|
---|
3 | * Mini logger implementation for busybox
|
---|
4 | *
|
---|
5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
---|
6 | *
|
---|
7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
---|
8 | */
|
---|
9 |
|
---|
10 | #include "busybox.h"
|
---|
11 | #include <stdio.h>
|
---|
12 | #include <unistd.h>
|
---|
13 | #include <sys/types.h>
|
---|
14 | #include <fcntl.h>
|
---|
15 | #include <ctype.h>
|
---|
16 | #include <string.h>
|
---|
17 | #include <stdlib.h>
|
---|
18 |
|
---|
19 | #if !defined CONFIG_SYSLOGD
|
---|
20 |
|
---|
21 | #define SYSLOG_NAMES
|
---|
22 | #include <sys/syslog.h>
|
---|
23 |
|
---|
24 | #else
|
---|
25 | #include <sys/syslog.h>
|
---|
26 | # ifndef __dietlibc__
|
---|
27 | /* We have to do this since the header file defines static
|
---|
28 | * structures. Argh.... bad libc, bad, bad...
|
---|
29 | */
|
---|
30 | typedef struct _code {
|
---|
31 | char *c_name;
|
---|
32 | int c_val;
|
---|
33 | } CODE;
|
---|
34 | extern CODE prioritynames[];
|
---|
35 | extern CODE facilitynames[];
|
---|
36 | # endif
|
---|
37 | #endif
|
---|
38 |
|
---|
39 | /* Decode a symbolic name to a numeric value
|
---|
40 | * this function is based on code
|
---|
41 | * Copyright (c) 1983, 1993
|
---|
42 | * The Regents of the University of California. All rights reserved.
|
---|
43 | *
|
---|
44 | * Original copyright notice is retained at the end of this file.
|
---|
45 | */
|
---|
46 | static int decode(char *name, CODE * codetab)
|
---|
47 | {
|
---|
48 | CODE *c;
|
---|
49 |
|
---|
50 | if (isdigit(*name))
|
---|
51 | return (atoi(name));
|
---|
52 | for (c = codetab; c->c_name; c++) {
|
---|
53 | if (!strcasecmp(name, c->c_name)) {
|
---|
54 | return (c->c_val);
|
---|
55 | }
|
---|
56 | }
|
---|
57 |
|
---|
58 | return (-1);
|
---|
59 | }
|
---|
60 |
|
---|
61 | /* Decode a symbolic name to a numeric value
|
---|
62 | * this function is based on code
|
---|
63 | * Copyright (c) 1983, 1993
|
---|
64 | * The Regents of the University of California. All rights reserved.
|
---|
65 | *
|
---|
66 | * Original copyright notice is retained at the end of this file.
|
---|
67 | */
|
---|
68 | static int pencode(char *s)
|
---|
69 | {
|
---|
70 | char *save;
|
---|
71 | int lev, fac = LOG_USER;
|
---|
72 |
|
---|
73 | for (save = s; *s && *s != '.'; ++s);
|
---|
74 | if (*s) {
|
---|
75 | *s = '\0';
|
---|
76 | fac = decode(save, facilitynames);
|
---|
77 | if (fac < 0)
|
---|
78 | bb_error_msg_and_die("unknown facility name: %s", save);
|
---|
79 | *s++ = '.';
|
---|
80 | } else {
|
---|
81 | s = save;
|
---|
82 | }
|
---|
83 | lev = decode(s, prioritynames);
|
---|
84 | if (lev < 0)
|
---|
85 | bb_error_msg_and_die("unknown priority name: %s", save);
|
---|
86 | return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
|
---|
87 | }
|
---|
88 |
|
---|
89 |
|
---|
90 | int logger_main(int argc, char **argv)
|
---|
91 | {
|
---|
92 | int pri = LOG_USER | LOG_NOTICE;
|
---|
93 | int option = 0;
|
---|
94 | int c, i, opt;
|
---|
95 | char buf[1024], name[128];
|
---|
96 |
|
---|
97 | /* Fill out the name string early (may be overwritten later) */
|
---|
98 | bb_getpwuid(name, geteuid(), sizeof(name));
|
---|
99 |
|
---|
100 | /* Parse any options */
|
---|
101 | while ((opt = getopt(argc, argv, "p:st:")) > 0) {
|
---|
102 | switch (opt) {
|
---|
103 | case 's':
|
---|
104 | option |= LOG_PERROR;
|
---|
105 | break;
|
---|
106 | case 'p':
|
---|
107 | pri = pencode(optarg);
|
---|
108 | break;
|
---|
109 | case 't':
|
---|
110 | safe_strncpy(name, optarg, sizeof(name));
|
---|
111 | break;
|
---|
112 | default:
|
---|
113 | bb_show_usage();
|
---|
114 | }
|
---|
115 | }
|
---|
116 |
|
---|
117 | openlog(name, option, 0);
|
---|
118 | if (optind == argc) {
|
---|
119 | do {
|
---|
120 | /* read from stdin */
|
---|
121 | i = 0;
|
---|
122 | while ((c = getc(stdin)) != EOF && c != '\n' &&
|
---|
123 | i < (sizeof(buf)-1)) {
|
---|
124 | buf[i++] = c;
|
---|
125 | }
|
---|
126 | if (i > 0) {
|
---|
127 | buf[i++] = '\0';
|
---|
128 | syslog(pri, "%s", buf);
|
---|
129 | }
|
---|
130 | } while (c != EOF);
|
---|
131 | } else {
|
---|
132 | char *message = NULL;
|
---|
133 | int len = argc - optind; /* for the space between the args
|
---|
134 | and '\0' */
|
---|
135 | opt = len;
|
---|
136 | argv += optind;
|
---|
137 | for (i = 0; i < opt; i++) {
|
---|
138 | len += strlen(*argv);
|
---|
139 | message = xrealloc(message, len);
|
---|
140 | if(!i)
|
---|
141 | message[0] = 0;
|
---|
142 | else
|
---|
143 | strcat(message, " ");
|
---|
144 | strcat(message, *argv);
|
---|
145 | argv++;
|
---|
146 | }
|
---|
147 | syslog(pri, "%s", message);
|
---|
148 | }
|
---|
149 |
|
---|
150 | closelog();
|
---|
151 | return EXIT_SUCCESS;
|
---|
152 | }
|
---|
153 |
|
---|
154 |
|
---|
155 | /*-
|
---|
156 | * Copyright (c) 1983, 1993
|
---|
157 | * The Regents of the University of California. All rights reserved.
|
---|
158 | *
|
---|
159 | * This is the original license statement for the decode and pencode functions.
|
---|
160 | *
|
---|
161 | * Redistribution and use in source and binary forms, with or without
|
---|
162 | * modification, are permitted provided that the following conditions
|
---|
163 | * are met:
|
---|
164 | * 1. Redistributions of source code must retain the above copyright
|
---|
165 | * notice, this list of conditions and the following disclaimer.
|
---|
166 | * 2. Redistributions in binary form must reproduce the above copyright
|
---|
167 | * notice, this list of conditions and the following disclaimer in the
|
---|
168 | * documentation and/or other materials provided with the distribution.
|
---|
169 | *
|
---|
170 | * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
|
---|
171 | * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
|
---|
172 | *
|
---|
173 | * 4. Neither the name of the University nor the names of its contributors
|
---|
174 | * may be used to endorse or promote products derived from this software
|
---|
175 | * without specific prior written permission.
|
---|
176 | *
|
---|
177 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
---|
178 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
---|
179 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
---|
180 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
---|
181 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
---|
182 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
---|
183 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
---|
184 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
---|
185 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
---|
186 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
---|
187 | * SUCH DAMAGE.
|
---|
188 | */
|
---|
189 |
|
---|
190 |
|
---|
191 |
|
---|