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Diffstat (limited to 'busybox/sysklogd/logger.c')
| -rw-r--r-- | busybox/sysklogd/logger.c | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/busybox/sysklogd/logger.c b/busybox/sysklogd/logger.c new file mode 100644 index 0000000..1615531 --- /dev/null +++ b/busybox/sysklogd/logger.c @@ -0,0 +1,204 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini logger implementation for busybox + * + * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <fcntl.h> +#include <ctype.h> +#include <string.h> +#include <stdlib.h> + +#include "busybox.h" +#if !defined CONFIG_SYSLOGD + +#define SYSLOG_NAMES +#include <sys/syslog.h> + +#else +#include <sys/syslog.h> +# ifndef __dietlibc__ + /* We have to do this since the header file defines static + * structures. Argh.... bad libc, bad, bad... + */ + typedef struct _code { + char *c_name; + int c_val; + } CODE; + extern CODE prioritynames[]; + extern CODE facilitynames[]; +# endif +#endif + +/* Decode a symbolic name to a numeric value + * this function is based on code + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * Original copyright notice is retained at the end of this file. + */ +static int decode(char *name, CODE * codetab) +{ + CODE *c; + + if (isdigit(*name)) + return (atoi(name)); + for (c = codetab; c->c_name; c++) { + if (!strcasecmp(name, c->c_name)) { + return (c->c_val); + } + } + + return (-1); +} + +/* Decode a symbolic name to a numeric value + * this function is based on code + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * Original copyright notice is retained at the end of this file. + */ +static int pencode(char *s) +{ + char *save; + int lev, fac = LOG_USER; + + for (save = s; *s && *s != '.'; ++s); + if (*s) { + *s = '\0'; + fac = decode(save, facilitynames); + if (fac < 0) + bb_error_msg_and_die("unknown facility name: %s", save); + *s++ = '.'; + } else { + s = save; + } + lev = decode(s, prioritynames); + if (lev < 0) + bb_error_msg_and_die("unknown priority name: %s", save); + return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK)); +} + + +extern int logger_main(int argc, char **argv) +{ + int pri = LOG_USER | LOG_NOTICE; + int option = 0; + int c, i, opt; + char buf[1024], name[128]; + + /* Fill out the name string early (may be overwritten later) */ + my_getpwuid(name, geteuid(), sizeof(name)); + + /* Parse any options */ + while ((opt = getopt(argc, argv, "p:st:")) > 0) { + switch (opt) { + case 's': + option |= LOG_PERROR; + break; + case 'p': + pri = pencode(optarg); + break; + case 't': + safe_strncpy(name, optarg, sizeof(name)); + break; + default: + bb_show_usage(); + } + } + + openlog(name, option, (pri | LOG_FACMASK)); + if (optind == argc) { + do { + /* read from stdin */ + i = 0; + while ((c = getc(stdin)) != EOF && c != '\n' && + i < (sizeof(buf)-1)) { + buf[i++] = c; + } + if (i > 0) { + buf[i++] = '\0'; + syslog(pri, "%s", buf); + } + } while (c != EOF); + } else { + char *message = NULL; + int len = argc - optind; /* for the space between the args + and '\0' */ + opt = len; + argv += optind; + for (i = 0; i < opt; i++) { + len += strlen(*argv); + message = xrealloc(message, len); + if(!i) + message[0] = 0; + else + strcat(message, " "); + strcat(message, *argv); + argv++; + } + syslog(pri, "%s", message); + } + + closelog(); + return EXIT_SUCCESS; +} + + +/*- + * Copyright (c) 1983, 1993 + * The Regents of the University of California. All rights reserved. + * + * This is the original license statement for the decode and pencode functions. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change + * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change> + * + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + + + |