source: MondoRescue/branches/stable/mindi-busybox/sysklogd/logger.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 4.9 KB
Line 
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 */
46static 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 */
68static 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
90int 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
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