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.
12 #if !defined CONFIG_SYSLOGD
15 #include <sys/syslog.h>
18 #include <sys/syslog.h>
20 /* We have to do this since the header file defines static
21 * structures. Argh.... bad libc, bad, bad...
23 typedef struct _code {
27 extern CODE prioritynames[];
28 extern CODE facilitynames[];
32 /* Decode a symbolic name to a numeric value
33 * this function is based on code
34 * Copyright (c) 1983, 1993
35 * The Regents of the University of California. All rights reserved.
37 * Original copyright notice is retained at the end of this file.
39 static int decode(char *name, CODE * codetab)
45 for (c = codetab; c->c_name; c++) {
46 if (!strcasecmp(name, c->c_name)) {
54 /* Decode a symbolic name to a numeric value
55 * this function is based on code
56 * Copyright (c) 1983, 1993
57 * The Regents of the University of California. All rights reserved.
59 * Original copyright notice is retained at the end of this file.
61 static int pencode(char *s)
64 int lev, fac = LOG_USER;
66 for (save = s; *s && *s != '.'; ++s);
69 fac = decode(save, facilitynames);
71 bb_error_msg_and_die("unknown facility name: %s", save);
76 lev = decode(s, prioritynames);
78 bb_error_msg_and_die("unknown priority name: %s", save);
79 return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
83 int logger_main(int argc, char **argv)
87 int pri = LOG_USER | LOG_NOTICE;
91 /* Fill out the name string early (may be overwritten later) */
92 bb_getpwuid(name, geteuid(), sizeof(name));
94 /* Parse any options */
95 opt = getopt32(argc, argv, "p:st:", &opt_p, &opt_t);
98 if (opt & 0x1) pri = pencode(opt_p); // -p
99 if (opt & 0x2) option |= LOG_PERROR; // -s
100 if (opt & 0x4) safe_strncpy(name, opt_t, sizeof(name)); // -t
102 openlog(name, option, 0);
104 while (fgets(bb_common_bufsiz1, BUFSIZ, stdin)) {
105 if (bb_common_bufsiz1[0]
106 && NOT_LONE_CHAR(bb_common_bufsiz1, '\n')
108 /* Neither "" nor "\n" */
109 syslog(pri, "%s", bb_common_bufsiz1);
113 char *message = NULL;
114 int len = 1; /* for NUL */
117 len += strlen(*argv) + 1;
118 message = xrealloc(message, len);
119 sprintf(message + pos, " %s", *argv),
122 syslog(pri, "%s", message + 1); /* skip leading " " */
131 * Copyright (c) 1983, 1993
132 * The Regents of the University of California. All rights reserved.
134 * This is the original license statement for the decode and pencode functions.
136 * Redistribution and use in source and binary forms, with or without
137 * modification, are permitted provided that the following conditions
139 * 1. Redistributions of source code must retain the above copyright
140 * notice, this list of conditions and the following disclaimer.
141 * 2. Redistributions in binary form must reproduce the above copyright
142 * notice, this list of conditions and the following disclaimer in the
143 * documentation and/or other materials provided with the distribution.
145 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
146 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
148 * 4. Neither the name of the University nor the names of its contributors
149 * may be used to endorse or promote products derived from this software
150 * without specific prior written permission.
152 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
153 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
154 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
155 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
156 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
157 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
158 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
159 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
160 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
161 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF