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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 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#include <stdio.h>
24#include <unistd.h>
25#include <sys/types.h>
26#include <fcntl.h>
27#include <ctype.h>
28#include <string.h>
29#include <stdlib.h>
30
31#include "busybox.h"
32#if !defined CONFIG_SYSLOGD
33
34#define SYSLOG_NAMES
35#include <sys/syslog.h>
36
37#else
38#include <sys/syslog.h>
39# ifndef __dietlibc__
40 /* We have to do this since the header file defines static
41 * structures. Argh.... bad libc, bad, bad...
42 */
43 typedef struct _code {
44 char *c_name;
45 int c_val;
46 } CODE;
47 extern CODE prioritynames[];
48 extern CODE facilitynames[];
49# endif
50#endif
51
52/* Decode a symbolic name to a numeric value
53 * this function is based on code
54 * Copyright (c) 1983, 1993
55 * The Regents of the University of California. All rights reserved.
56 *
57 * Original copyright notice is retained at the end of this file.
58 */
59static int decode(char *name, CODE * codetab)
60{
61 CODE *c;
62
63 if (isdigit(*name))
64 return (atoi(name));
65 for (c = codetab; c->c_name; c++) {
66 if (!strcasecmp(name, c->c_name)) {
67 return (c->c_val);
68 }
69 }
70
71 return (-1);
72}
73
74/* Decode a symbolic name to a numeric value
75 * this function is based on code
76 * Copyright (c) 1983, 1993
77 * The Regents of the University of California. All rights reserved.
78 *
79 * Original copyright notice is retained at the end of this file.
80 */
81static int pencode(char *s)
82{
83 char *save;
84 int lev, fac = LOG_USER;
85
86 for (save = s; *s && *s != '.'; ++s);
87 if (*s) {
88 *s = '\0';
89 fac = decode(save, facilitynames);
90 if (fac < 0)
91 bb_error_msg_and_die("unknown facility name: %s", save);
92 *s++ = '.';
93 } else {
94 s = save;
95 }
96 lev = decode(s, prioritynames);
97 if (lev < 0)
98 bb_error_msg_and_die("unknown priority name: %s", save);
99 return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
100}
101
102
103extern int logger_main(int argc, char **argv)
104{
105 int pri = LOG_USER | LOG_NOTICE;
106 int option = 0;
107 int c, i, opt;
108 char buf[1024], name[128];
109
110 /* Fill out the name string early (may be overwritten later) */
111 my_getpwuid(name, geteuid(), sizeof(name));
112
113 /* Parse any options */
114 while ((opt = getopt(argc, argv, "p:st:")) > 0) {
115 switch (opt) {
116 case 's':
117 option |= LOG_PERROR;
118 break;
119 case 'p':
120 pri = pencode(optarg);
121 break;
122 case 't':
123 safe_strncpy(name, optarg, sizeof(name));
124 break;
125 default:
126 bb_show_usage();
127 }
128 }
129
130 openlog(name, option, (pri | LOG_FACMASK));
131 if (optind == argc) {
132 do {
133 /* read from stdin */
134 i = 0;
135 while ((c = getc(stdin)) != EOF && c != '\n' &&
136 i < (sizeof(buf)-1)) {
137 buf[i++] = c;
138 }
139 if (i > 0) {
140 buf[i++] = '\0';
141 syslog(pri, "%s", buf);
142 }
143 } while (c != EOF);
144 } else {
145 char *message = NULL;
146 int len = argc - optind; /* for the space between the args
147 and '\0' */
148 opt = len;
149 argv += optind;
150 for (i = 0; i < opt; i++) {
151 len += strlen(*argv);
152 message = xrealloc(message, len);
153 if(!i)
154 message[0] = 0;
155 else
156 strcat(message, " ");
157 strcat(message, *argv);
158 argv++;
159 }
160 syslog(pri, "%s", message);
161 }
162
163 closelog();
164 return EXIT_SUCCESS;
165}
166
167
168/*-
169 * Copyright (c) 1983, 1993
170 * The Regents of the University of California. All rights reserved.
171 *
172 * This is the original license statement for the decode and pencode functions.
173 *
174 * Redistribution and use in source and binary forms, with or without
175 * modification, are permitted provided that the following conditions
176 * are met:
177 * 1. Redistributions of source code must retain the above copyright
178 * notice, this list of conditions and the following disclaimer.
179 * 2. Redistributions in binary form must reproduce the above copyright
180 * notice, this list of conditions and the following disclaimer in the
181 * documentation and/or other materials provided with the distribution.
182 *
183 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
184 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
185 *
186 * 4. Neither the name of the University nor the names of its contributors
187 * may be used to endorse or promote products derived from this software
188 * without specific prior written permission.
189 *
190 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
191 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
192 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
193 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
194 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
195 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
196 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
197 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
198 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
199 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
200 * SUCH DAMAGE.
201 */
202
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