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 "libbb.h" 11 12#if !defined CONFIG_SYSLOGD 13 14#define SYSLOG_NAMES 15#include <sys/syslog.h> 16 17#else 18#include <sys/syslog.h> 19# ifndef __dietlibc__ 20 /* We have to do this since the header file defines static 21 * structures. Argh.... bad libc, bad, bad... 22 */ 23 typedef struct _code { 24 char *c_name; 25 int c_val; 26 } CODE; 27 extern CODE prioritynames[]; 28 extern CODE facilitynames[]; 29# endif 30#endif 31 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. 36 * 37 * Original copyright notice is retained at the end of this file. 38 */ 39static int decode(char *name, CODE * codetab) 40{ 41 CODE *c; 42 43 if (isdigit(*name)) 44 return atoi(name); 45 for (c = codetab; c->c_name; c++) { 46 if (!strcasecmp(name, c->c_name)) { 47 return c->c_val; 48 } 49 } 50 51 return -1; 52} 53 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. 58 * 59 * Original copyright notice is retained at the end of this file. 60 */ 61static int pencode(char *s) 62{ 63 char *save; 64 int lev, fac = LOG_USER; 65 66 for (save = s; *s && *s != '.'; ++s) 67 ; 68 if (*s) { 69 *s = '\0'; 70 fac = decode(save, facilitynames); 71 if (fac < 0) 72 bb_error_msg_and_die("unknown %s name: %s", "facility", save); 73 *s++ = '.'; 74 } else { 75 s = save; 76 } 77 lev = decode(s, prioritynames); 78 if (lev < 0) 79 bb_error_msg_and_die("unknown %s name: %s", "priority", save); 80 return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); 81} 82 83 84int logger_main(int argc, char **argv); 85int logger_main(int argc, char **argv) 86{ 87 char *str_p, *str_t; 88 int i = 0; 89 char name[80]; 90 91 /* Fill out the name string early (may be overwritten later) */ 92 bb_getpwuid(name, sizeof(name), geteuid()); 93 str_t = name; 94 95 /* Parse any options */ 96 getopt32(argv, "p:st:", &str_p, &str_t); 97 98 if (option_mask32 & 0x2) /* -s */ 99 i |= LOG_PERROR; 100 //if (option_mask32 & 0x4) /* -t */ 101 openlog(str_t, i, 0); 102 i = LOG_USER | LOG_NOTICE; 103 if (option_mask32 & 0x1) /* -p */ 104 i = pencode(str_p); 105 106 argc -= optind; 107 argv += optind; 108 if (!argc) { 109#define strbuf bb_common_bufsiz1 110 while (fgets(strbuf, BUFSIZ, stdin)) { 111 if (strbuf[0] 112 && NOT_LONE_CHAR(strbuf, '\n') 113 ) { 114 /* Neither "" nor "\n" */ 115 syslog(i, "%s", strbuf); 116 } 117 } 118 } else { 119 char *message = NULL; 120 int len = 1; /* for NUL */ 121 int pos = 0; 122 do { 123 len += strlen(*argv) + 1; 124 message = xrealloc(message, len); 125 sprintf(message + pos, " %s", *argv), 126 pos = len; 127 } while (*++argv); 128 syslog(i, "%s", message + 1); /* skip leading " " */ 129 } 130 131 closelog(); 132 return EXIT_SUCCESS; 133} 134 135 136/*- 137 * Copyright (c) 1983, 1993 138 * The Regents of the University of California. All rights reserved. 139 * 140 * This is the original license statement for the decode and pencode functions. 141 * 142 * Redistribution and use in source and binary forms, with or without 143 * modification, are permitted provided that the following conditions 144 * are met: 145 * 1. Redistributions of source code must retain the above copyright 146 * notice, this list of conditions and the following disclaimer. 147 * 2. Redistributions in binary form must reproduce the above copyright 148 * notice, this list of conditions and the following disclaimer in the 149 * documentation and/or other materials provided with the distribution. 150 * 151 * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change 152 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change> 153 * 154 * 4. Neither the name of the University nor the names of its contributors 155 * may be used to endorse or promote products derived from this software 156 * without specific prior written permission. 157 * 158 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 159 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 160 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 161 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 162 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 163 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 164 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 165 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 166 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 167 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 168 * SUCH DAMAGE. 169 */ 170