*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * 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 CONFIG_SYSLOGD
-
+/*
+ * Done in syslogd_and_logger.c:
+#include "libbb.h"
#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
+#define SYSLOG_NAMES_CONST
+#include <syslog.h>
+*/
/* Decode a symbolic name to a numeric value
* this function is based on code
*
* 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
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)
- bb_error_msg_and_die("unknown facility name: %s", 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)
- bb_error_msg_and_die("unknown priority name: %s", save);
+ bb_error_msg_and_die("unknown %s name: %s", "priority", save);
return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
}
+#define strbuf bb_common_bufsiz1
-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)
{
- unsigned long opt;
- char *opt_p, *opt_t;
- int pri = LOG_USER | LOG_NOTICE;
- int option = 0;
- int c, i;
- char 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) */
- bb_getpwuid(name, geteuid(), sizeof(name));
+ str_t = uid2uname_utoa(geteuid());
/* Parse any options */
- opt = bb_getopt_ulflags(argc, argv, "p:st:", &opt_p, &opt_t);
- if (opt & 0x1) pri = pencode(opt_p); // -p
- if (opt & 0x2) option |= LOG_PERROR; // -s
- if (opt & 0x4) safe_strncpy(name, opt_t, sizeof(name)); // -t
-
- openlog(name, option, 0);
- 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);
+ 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);
}
- } 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);
+ 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 " " */
}
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