/*
* Mini logger implementation for busybox
*
- * Copyright (C) 1999,2000,2001 by Lineo, inc.
- * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.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
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//config:config LOGGER
+//config: bool "logger (6.3 kb)"
+//config: default y
+//config: select FEATURE_SYSLOG
+//config: help
+//config: The logger utility allows you to send arbitrary text
+//config: messages to the system log (i.e. the 'syslogd' utility) so
+//config: they can be logged. This is generally used to help locate
+//config: problems that occur within programs and scripts.
+
+//applet:IF_LOGGER(APPLET(logger, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_LOGGER) += syslogd_and_logger.o
+
+//usage:#define logger_trivial_usage
+//usage: "[OPTIONS] [MESSAGE]"
+//usage:#define logger_full_usage "\n\n"
+//usage: "Write MESSAGE (or stdin) to syslog\n"
+//usage: "\n -s Log to stderr as well as the system log"
+//usage: "\n -t TAG Log using the specified tag (defaults to user name)"
+//usage: "\n -p PRIO Priority (numeric or facility.level pair)"
+//usage:
+//usage:#define logger_example_usage
+//usage: "$ logger \"hello\"\n"
-#include "busybox.h"
-#include <stdio.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-
-#if !defined BB_SYSLOGD
-
+/*
+ * Done in syslogd_and_logger.c:
+#include "libbb.h"
#define SYSLOG_NAMES
-#include <sys/syslog.h>
+#define SYSLOG_NAMES_CONST
+#include <syslog.h>
+*/
-#else
-/* We have to do this since the header file defines static
- * structures. Argh.... bad libc, bad, bad...
- */
-#include <sys/syslog.h>
-typedef struct _code {
- char *c_name;
- int c_val;
-} CODE;
-extern CODE prioritynames[];
-extern CODE facilitynames[];
-#endif
-
-/* Decode a symbolic name to a numeric value
+/* 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)
+static int decode(char *name, const CODE *codetab)
{
- CODE *c;
+ const CODE *c;
if (isdigit(*name))
- return (atoi(name));
+ return atoi(name);
for (c = codetab; c->c_name; c++) {
if (!strcasecmp(name, c->c_name)) {
- return (c->c_val);
+ return c->c_val;
}
}
- return (-1);
+ return -1;
}
-/* Decode a symbolic name to a numeric value
+/* 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.
char *save;
int lev, fac = LOG_USER;
- for (save = s; *s && *s != '.'; ++s);
+ for (save = s; *s && *s != '.'; ++s)
+ ;
if (*s) {
*s = '\0';
- fac = decode(save, facilitynames);
+ fac = decode(save, bb_facilitynames);
if (fac < 0)
- error_msg_and_die("unknown facility name: %s\n", save);
+ bb_error_msg_and_die("unknown %s name: %s", "facility", save);
*s++ = '.';
} else {
s = save;
}
- lev = decode(s, prioritynames);
+ lev = decode(s, bb_prioritynames);
if (lev < 0)
- error_msg_and_die("unknown priority name: %s\n", save);
+ bb_error_msg_and_die("unknown %s name: %s", "priority", save);
return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
}
+#define strbuf bb_common_bufsiz1
-extern int logger_main(int argc, char **argv)
+int logger_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int logger_main(int argc UNUSED_PARAM, char **argv)
{
- int pri = LOG_USER | LOG_NOTICE;
- int option = 0;
- int c, i, len, opt;
- char *message=NULL, buf[1024], name[128];
+ char *str_p, *str_t;
+ int opt;
+ int i = 0;
+
+ setup_common_bufsiz();
/* Fill out the name string early (may be overwritten later) */
- my_getpwuid(name, geteuid());
+ str_t = uid2uname_utoa(geteuid());
/* 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':
- strncpy(name, optarg, sizeof(name));
- break;
- default:
- usage(logger_usage);
+ opt = getopt32(argv, "p:st:", &str_p, &str_t);
+
+ if (opt & 0x2) /* -s */
+ i |= LOG_PERROR;
+ //if (opt & 0x4) /* -t */
+ openlog(str_t, i, 0);
+ i = LOG_USER | LOG_NOTICE;
+ if (opt & 0x1) /* -p */
+ i = pencode(str_p);
+
+ argv += optind;
+ if (!argv[0]) {
+ while (fgets(strbuf, COMMON_BUFSIZE, stdin)) {
+ if (strbuf[0]
+ && NOT_LONE_CHAR(strbuf, '\n')
+ ) {
+ /* Neither "" nor "\n" */
+ syslog(i, "%s", strbuf);
+ }
}
- }
-
- if (optind == argc) {
- /* read from stdin */
- i = 0;
- while ((c = getc(stdin)) != EOF && i < sizeof(buf)) {
- buf[i++] = c;
- }
- buf[i++] = '\0';
- message = buf;
} else {
- len = 1; /* for the '\0' */
- message=xcalloc(1, 1);
- for (i = optind; i < argc; i++) {
- len += strlen(argv[i]);
- len += 1; /* for the space between the args */
- message = xrealloc(message, len);
- strcat(message, argv[i]);
- strcat(message, " ");
- }
- message[strlen(message)-1] = '\0';
+ char *message = NULL;
+ int len = 0;
+ int pos = 0;
+ do {
+ len += strlen(*argv) + 1;
+ message = xrealloc(message, len + 1);
+ sprintf(message + pos, " %s", *argv),
+ pos = len;
+ } while (*++argv);
+ syslog(i, "%s", message + 1); /* skip leading " " */
}
- openlog(name, option, (pri | LOG_FACMASK));
- syslog(pri, "%s", message);
closelog();
return EXIT_SUCCESS;
}
+/* Clean up. Needed because we are included from syslogd_and_logger.c */
+#undef strbuf
/*-
* Copyright (c) 1983, 1993
- * The Regents of the University of California. All rights reserved.
+ * The Regents of the University of California. All rights reserved.
*
* This is the original license statement for the decode and pencode functions.
*
* 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>
+ * 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
+ * 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
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-
-
-
projects / oweals / busybox.git / blobdiff