[821] | 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 |
|
---|