160 lines
3.6 KiB
C
160 lines
3.6 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini logger implementation for busybox
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*
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* Copyright (C) 1999,2000 by Lineo, inc.
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* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "busybox.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <ctype.h>
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#if !defined BB_SYSLOGD
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#define SYSLOG_NAMES
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#include <sys/syslog.h>
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#else
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/* We have to do this since the header file defines static
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* structues. Argh.... bad libc, bad, bad...
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*/
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#include <sys/syslog.h>
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typedef struct _code {
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char *c_name;
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int c_val;
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} CODE;
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extern CODE prioritynames[];
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extern CODE facilitynames[];
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#endif
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/* Decode a symbolic name to a numeric value
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* this function is based on code
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*/
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static int decode(char *name, CODE * codetab)
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{
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CODE *c;
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if (isdigit(*name))
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return (atoi(name));
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for (c = codetab; c->c_name; c++) {
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if (!strcasecmp(name, c->c_name)) {
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return (c->c_val);
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}
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}
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return (-1);
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}
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/* Decode a symbolic name to a numeric value
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* this function is based on code
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* Copyright (c) 1983, 1993
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* The Regents of the University of California. All rights reserved.
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*/
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static int pencode(char *s)
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{
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char *save;
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int lev, fac = LOG_USER;
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for (save = s; *s && *s != '.'; ++s);
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if (*s) {
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*s = '\0';
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fac = decode(save, facilitynames);
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if (fac < 0)
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fatalError("unknown facility name: %s\n", save);
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*s++ = '.';
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} else {
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s = save;
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}
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lev = decode(s, prioritynames);
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if (lev < 0)
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fatalError("unknown priority name: %s\n", save);
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return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
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}
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extern int logger_main(int argc, char **argv)
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{
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int pri = LOG_USER | LOG_NOTICE;
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int option = 0;
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int fromStdinFlag = FALSE;
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int stopLookingAtMeLikeThat = FALSE;
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char *message=NULL, buf[1024], name[128];
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/* Fill out the name string early (may be overwritten later */
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my_getpwuid(name, geteuid());
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/* Parse any options */
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while (--argc > 0 && **(++argv) == '-') {
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if (*((*argv) + 1) == '\0') {
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fromStdinFlag = TRUE;
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}
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stopLookingAtMeLikeThat = FALSE;
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while (*(++(*argv)) && stopLookingAtMeLikeThat == FALSE) {
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switch (**argv) {
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case 's':
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option |= LOG_PERROR;
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break;
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case 'p':
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if (--argc == 0) {
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usage(logger_usage);
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}
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pri = pencode(*(++argv));
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stopLookingAtMeLikeThat = TRUE;
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break;
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case 't':
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if (--argc == 0) {
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usage(logger_usage);
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}
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strncpy(name, *(++argv), sizeof(name));
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stopLookingAtMeLikeThat = TRUE;
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break;
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default:
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usage(logger_usage);
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}
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}
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}
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if (fromStdinFlag == TRUE) {
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/* read from stdin */
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int c;
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unsigned int i = 0;
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while ((c = getc(stdin)) != EOF && i < sizeof(buf)) {
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buf[i++] = c;
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}
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message = buf;
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} else {
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if (argc >= 1)
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message = *argv;
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else
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fatalError("No message\n");
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}
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openlog(name, option, (pri | LOG_FACMASK));
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syslog(pri, message);
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closelog();
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return EXIT_SUCCESS;
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}
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