/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 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.
*
* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org>
* - added Native Language Support
* Sun Mar 21 1999 - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
* - fixed strerr(errno) in gettext calls
*/
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include "nls.h"
#define SYSLOG_NAMES
#include <syslog.h>
int decode __P((char *, CODE *));
int pencode __P((char *));
void usage __P((void));
static int
myopenlog(const char *sock) {
int fd;
static struct sockaddr s_addr; /* AF_UNIX address of local logger */
s_addr.sa_family = AF_UNIX;
(void)strncpy(s_addr.sa_data, sock, sizeof(s_addr.sa_data));
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
printf ("socket: %s.\n", strerror(errno));
exit (1);
}
if (connect(fd, &s_addr, sizeof(s_addr.sa_family)+strlen(s_addr.sa_data)) == -1) {
printf ("connect: %s.\n", strerror(errno));
exit (1);
}
return fd;
}
static void
mysyslog(int fd, int logflags, int pri, char *tag, char *msg) {
char buf[1000], pid[30], *cp, *tp;
time_t now;
if (fd > -1) {
/* there was a gethostname call here, but its output was not used */
/* avoid snprintf - it does not exist on ancient systems */
if (logflags & LOG_PID)
sprintf (pid, "[%d]", getpid());
else
pid[0] = 0;
if (tag)
cp = tag;
else {
cp = getlogin();
if (!cp)
cp = "<someone>";
}
(void)time(&now);
tp = ctime(&now)+4;
/* do snprintf by hand - ugly, but for once... */
sprintf(buf, "<%d>%.15s %.200s%s: %.400s",
pri, tp, cp, pid, msg);
if (write(fd, buf, strlen(buf)+1) < 0)
return; /* error */
}
}
/*
* logger -- read and log utility
*
* Reads from an input and arranges to write the result on the system
* log.
*/
int
main(int argc, char **argv) {
int ch, logflags, pri;
char *tag, buf[1024];
char *usock = NULL;
int LogSock = -1;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
tag = NULL;
pri = LOG_NOTICE;
logflags = 0;
while ((ch = getopt(argc, argv, "f:ip:st:u:")) != EOF)
switch((char)ch) {
case 'f': /* file to log */
if (freopen(optarg, "r", stdin) == NULL) {
int errsv = errno;
(void)fprintf(stderr, _("logger: %s: %s.\n"),
optarg, strerror(errsv));
exit(1);
}
break;
case 'i': /* log process id also */
logflags |= LOG_PID;
break;
case 'p': /* priority */
pri = pencode(optarg);
break;
case 's': /* log to standard error */
logflags |= LOG_PERROR;
break;
case 't': /* tag */
tag = optarg;
break;
case 'u': /* unix socket */
usock = optarg;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
/* setup for logging */
if (!usock)
openlog(tag ? tag : getlogin(), logflags, 0);
else
LogSock = myopenlog(usock);
(void) fclose(stdout);
/* log input line if appropriate */
if (argc > 0) {
register char *p, *endp;
int len;
for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) {
len = strlen(*argv);
if (p + len > endp && p > buf) {
if (!usock)
syslog(pri, "%s", buf);
else
mysyslog(LogSock, logflags, pri, tag, buf);
p = buf;
}
if (len > sizeof(buf) - 1) {
if (!usock)
syslog(pri, "%s", *argv++);
else
mysyslog(LogSock, logflags, pri, tag, *argv++);
} else {
if (p != buf)
*p++ = ' ';
bcopy(*argv++, p, len);
*(p += len) = '\0';
}
}
if (p != buf) {
if (!usock)
syslog(pri, "%s", buf);
else
mysyslog(LogSock, logflags, pri, tag, buf);
}
} else
while (fgets(buf, sizeof(buf), stdin) != NULL) {
/* glibc is buggy and adds an additional newline,
so we have to remove it here until glibc is fixed */
int len = strlen(buf);
if (len > 0 && buf[len - 1] == '\n')
buf[len - 1] = '\0';
if (!usock)
syslog(pri, "%s", buf);
else
mysyslog(LogSock, logflags, pri, tag, buf);
}
if (!usock)
closelog();
else
close(LogSock);
exit(0);
}
/*
* Decode a symbolic name to a numeric value
*/
int
pencode(s)
register char *s;
{
char *save;
int fac, lev;
for (save = s; *s && *s != '.'; ++s);
if (*s) {
*s = '\0';
fac = decode(save, facilitynames);
if (fac < 0) {
(void)fprintf(stderr,
_("logger: unknown facility name: %s.\n"), save);
exit(1);
}
*s++ = '.';
}
else {
fac = LOG_USER;
s = save;
}
lev = decode(s, prioritynames);
if (lev < 0) {
(void)fprintf(stderr,
_("logger: unknown priority name: %s.\n"), save);
exit(1);
}
return ((lev & LOG_PRIMASK) | (fac & LOG_FACMASK));
}
int
decode(name, codetab)
char *name;
CODE *codetab;
{
register 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);
}
void
usage()
{
(void)fprintf(stderr,
_("usage: logger [-is] [-f file] [-p pri] [-t tag] [-u socket] [ message ... ]\n"));
exit(1);
}
