1 /* vi: set sw=4 ts=4: */
3 * Mini logger implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
13 #include <sys/types.h>
19 #if !defined CONFIG_SYSLOGD
22 #include <sys/syslog.h>
25 #include <sys/syslog.h>
27 /* We have to do this since the header file defines static
28 * structures. Argh.... bad libc, bad, bad...
30 typedef struct _code {
34 extern CODE prioritynames[];
35 extern CODE facilitynames[];
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.
44 * Original copyright notice is retained at the end of this file.
46 static int decode(char *name, CODE * codetab)
52 for (c = codetab; c->c_name; c++) {
53 if (!strcasecmp(name, c->c_name)) {
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.
66 * Original copyright notice is retained at the end of this file.
68 static int pencode(char *s)
71 int lev, fac = LOG_USER;
73 for (save = s; *s && *s != '.'; ++s);
76 fac = decode(save, facilitynames);
78 bb_error_msg_and_die("unknown facility name: %s", save);
83 lev = decode(s, prioritynames);
85 bb_error_msg_and_die("unknown priority name: %s", save);
86 return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
90 int logger_main(int argc, char **argv)
94 int pri = LOG_USER | LOG_NOTICE;
97 char buf[1024], name[128];
99 /* Fill out the name string early (may be overwritten later) */
100 bb_getpwuid(name, geteuid(), sizeof(name));
102 /* Parse any options */
103 opt = getopt32(argc, argv, "p:st:", &opt_p, &opt_t);
104 if (opt & 0x1) pri = pencode(opt_p); // -p
105 if (opt & 0x2) option |= LOG_PERROR; // -s
106 if (opt & 0x4) safe_strncpy(name, opt_t, sizeof(name)); // -t
108 openlog(name, option, 0);
109 if (optind == argc) {
111 /* read from stdin */
113 while ((c = getc(stdin)) != EOF && c != '\n' &&
114 i < (sizeof(buf)-1)) {
119 syslog(pri, "%s", buf);
123 char *message = NULL;
124 int len = argc - optind; /* for the space between the args
128 for (i = 0; i < opt; i++) {
129 len += strlen(*argv);
130 message = xrealloc(message, len);
134 strcat(message, " ");
135 strcat(message, *argv);
138 syslog(pri, "%s", message);
147 * Copyright (c) 1983, 1993
148 * The Regents of the University of California. All rights reserved.
150 * This is the original license statement for the decode and pencode functions.
152 * Redistribution and use in source and binary forms, with or without
153 * modification, are permitted provided that the following conditions
155 * 1. Redistributions of source code must retain the above copyright
156 * notice, this list of conditions and the following disclaimer.
157 * 2. Redistributions in binary form must reproduce the above copyright
158 * notice, this list of conditions and the following disclaimer in the
159 * documentation and/or other materials provided with the distribution.
161 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
162 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
164 * 4. Neither the name of the University nor the names of its contributors
165 * may be used to endorse or promote products derived from this software
166 * without specific prior written permission.
168 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
169 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
170 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
171 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
172 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
173 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
174 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
175 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
176 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
177 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF