busybox/sysklogd/logger.c

/* vi: set sw=4 ts=4: */
/*
 * Mini logger implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

/*
 * Done in syslogd_and_logger.c:
#include "libbb.h"
#define SYSLOG_NAMES
#define SYSLOG_NAMES_CONST
#include <syslog.h>
*/

/* 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, const CODE *codetab)
{
	const 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 %s name: %s", "facility", save);
		*s++ = '.';
	} else {
		s = save;
	}
	lev = decode(s, prioritynames);
	if (lev < 0)
		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) MAIN_EXTERNALLY_VISIBLE;
int logger_main(int argc UNUSED_PARAM, char **argv)
{
	char *str_p, *str_t;
	int opt;
	int i = 0;

	/* Fill out the name string early (may be overwritten later) */
	str_t = uid2uname_utoa(geteuid());

	/* Parse any options */
	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);
			}
		}
	} else {
		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 " " */
	}

	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.
 *
 * 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.
 */
1	niro	532	/* 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	niro	816	/*
11			* Done in syslogd_and_logger.c:
12			#include "libbb.h"
13	niro	532	#define SYSLOG_NAMES
14	niro	816	#define SYSLOG_NAMES_CONST
15			#include <syslog.h>
16			*/
17	niro	532
18			/* Decode a symbolic name to a numeric value
19			* this function is based on code
20			* Copyright (c) 1983, 1993
21			* The Regents of the University of California. All rights reserved.
22			*
23			* Original copyright notice is retained at the end of this file.
24			*/
25	niro	816	static int decode(char name, const CODE codetab)
26	niro	532	{
27	niro	816	const CODE *c;
28	niro	532
29			if (isdigit(*name))
30			return atoi(name);
31			for (c = codetab; c->c_name; c++) {
32			if (!strcasecmp(name, c->c_name)) {
33			return c->c_val;
34			}
35			}
36
37			return -1;
38			}
39
40			/* Decode a symbolic name to a numeric value
41			* this function is based on code
42			* Copyright (c) 1983, 1993
43			* The Regents of the University of California. All rights reserved.
44			*
45			* Original copyright notice is retained at the end of this file.
46			*/
47			static int pencode(char *s)
48			{
49			char *save;
50			int lev, fac = LOG_USER;
51
52			for (save = s; s && s != '.'; ++s)
53			;
54			if (*s) {
55			*s = '\0';
56			fac = decode(save, facilitynames);
57			if (fac < 0)
58			bb_error_msg_and_die("unknown %s name: %s", "facility", save);
59			*s++ = '.';
60			} else {
61			s = save;
62			}
63			lev = decode(s, prioritynames);
64			if (lev < 0)
65			bb_error_msg_and_die("unknown %s name: %s", "priority", save);
66			return ((lev & LOG_PRIMASK) \| (fac & LOG_FACMASK));
67			}
68
69	niro	816	#define strbuf bb_common_bufsiz1
70	niro	532
71	niro	816	int logger_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
72	niro	984	int logger_main(int argc UNUSED_PARAM, char **argv)
73	niro	532	{
74			char str_p, str_t;
75	niro	984	int opt;
76	niro	532	int i = 0;
77
78			/* Fill out the name string early (may be overwritten later) */
79	niro	984	str_t = uid2uname_utoa(geteuid());
80	niro	532
81			/* Parse any options */
82	niro	984	opt = getopt32(argv, "p:st:", &str_p, &str_t);
83	niro	532
84	niro	984	if (opt & 0x2) /* -s */
85	niro	532	i \|= LOG_PERROR;
86	niro	984	//if (opt & 0x4) /* -t */
87	niro	532	openlog(str_t, i, 0);
88			i = LOG_USER \| LOG_NOTICE;
89	niro	984	if (opt & 0x1) /* -p */
90	niro	532	i = pencode(str_p);
91
92			argv += optind;
93	niro	984	if (!argv[0]) {
94	niro	816	while (fgets(strbuf, COMMON_BUFSIZE, stdin)) {
95			if (strbuf[0]
96			&& NOT_LONE_CHAR(strbuf, '\n')
97	niro	532	) {
98			/* Neither "" nor "\n" */
99	niro	816	syslog(i, "%s", strbuf);
100	niro	532	}
101			}
102			} else {
103			char *message = NULL;
104	niro	816	int len = 0;
105	niro	532	int pos = 0;
106			do {
107			len += strlen(*argv) + 1;
108	niro	816	message = xrealloc(message, len + 1);
109	niro	532	sprintf(message + pos, " %s", *argv),
110			pos = len;
111			} while (*++argv);
112			syslog(i, "%s", message + 1); /* skip leading " " */
113			}
114
115			closelog();
116			return EXIT_SUCCESS;
117			}
118
119	niro	816	/* Clean up. Needed because we are included from syslogd_and_logger.c */
120			#undef strbuf
121	niro	532
122			/*-
123			* Copyright (c) 1983, 1993
124			* The Regents of the University of California. All rights reserved.
125			*
126			* This is the original license statement for the decode and pencode functions.
127			*
128			* Redistribution and use in source and binary forms, with or without
129			* modification, are permitted provided that the following conditions
130			* are met:
131			* 1. Redistributions of source code must retain the above copyright
132			* notice, this list of conditions and the following disclaimer.
133			* 2. Redistributions in binary form must reproduce the above copyright
134			* notice, this list of conditions and the following disclaimer in the
135			* documentation and/or other materials provided with the distribution.
136			*
137			* 3. <BSD Advertising Clause omitted per the July 22, 1999 licensing change
138			* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change>
139			*
140			* 4. Neither the name of the University nor the names of its contributors
141			* may be used to endorse or promote products derived from this software
142			* without specific prior written permission.
143			*
144			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
145			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
146			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
147			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
148			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
149			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
150			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
151			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
152			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
153			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
154			* SUCH DAMAGE.
155			*/