static void logger_stdin(struct logger_ctl *ctl)
{
char *msg;
int default_priority = ctl->pri;
char buf[1024];
while (fgets(buf, sizeof(buf), stdin) != NULL) {
int len = strlen(buf);
/* some glibc versions are buggy, they add an additional
* newline which is removed here. */
if (0 < len && buf[len - 1] == '\n')
buf[len - 1] = '\0';
msg = buf;
ctl->pri = default_priority;
if (ctl->prio_prefix && msg[0] == '<')
msg = get_prio_prefix(msg, &ctl->pri);
ctl->syslogfp(ctl, msg);
}
}
/*
* 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, prio_prefix;
char *tag, buf[1024];
char *usock = NULL;
char *server = NULL;
char *port = NULL;
int LogSock = -1, socket_type = ALL_TYPES;
#ifdef HAVE_LIBSYSTEMD
FILE *jfd = NULL;
#endif
static const struct option longopts[] = {
{ "id", no_argument, 0, 'i' },
{ "stderr", no_argument, 0, 's' },
{ "file", required_argument, 0, 'f' },
{ "priority", required_argument, 0, 'p' },
{ "tag", required_argument, 0, 't' },
{ "socket", required_argument, 0, 'u' },
{ "udp", no_argument, 0, 'd' },
{ "tcp", no_argument, 0, 'T' },
{ "server", required_argument, 0, 'n' },
{ "port", required_argument, 0, 'P' },
{ "version", no_argument, 0, 'V' },
{ "help", no_argument, 0, 'h' },
{ "prio-prefix", no_argument, 0, OPT_PRIO_PREFIX },
#ifdef HAVE_LIBSYSTEMD
{ "journald", optional_argument, 0, OPT_JOURNALD },
#endif
{ NULL, 0, 0, 0 }
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
atexit(close_stdout);
tag = NULL;
pri = LOG_NOTICE;
logflags = 0;
prio_prefix = 0;
while ((ch = getopt_long(argc, argv, "f:ip:st:u:dTn:P:Vh",
longopts, NULL)) != -1) {
switch (ch) {
case 'f': /* file to log */
if (freopen(optarg, "r", stdin) == NULL)
err(EXIT_FAILURE, _("file %s"),
optarg);
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 'd':
socket_type = TYPE_UDP;
break;
case 'T':
socket_type = TYPE_TCP;
break;
case 'n':
server = optarg;
break;
case 'P':
port = optarg;
break;
case 'V':
printf(UTIL_LINUX_VERSION);
exit(EXIT_SUCCESS);
case 'h':
usage(stdout);
case OPT_PRIO_PREFIX:
prio_prefix = 1;
break;
#ifdef HAVE_LIBSYSTEMD
case OPT_JOURNALD:
if (optarg) {
jfd = fopen(optarg, "r");
if (!jfd)
err(EXIT_FAILURE, _("cannot open %s"),
optarg);
} else
jfd = stdin;
break;
#endif
case '?':
default:
usage(stderr);
}
}
argc -= optind;
argv += optind;
/* setup for logging */
#ifdef HAVE_LIBSYSTEMD
if (jfd) {
int ret = journald_entry(jfd);
if (stdin != jfd)
fclose(jfd);
return ret ? EXIT_FAILURE : EXIT_SUCCESS;
}
#endif
if (server)
LogSock = inet_socket(server, port, socket_type);
else if (usock)
LogSock = unix_socket(usock, socket_type);
else
openlog(tag ? tag : getlogin(), logflags, 0);
/* log input line if appropriate */
if (argc > 0) {
register char *p, *endp;
size_t len;
for (p = buf, endp = buf + sizeof(buf) - 2; *argv;) {
len = strlen(*argv);
if (p + len > endp && p > buf) {
if (!usock && !server)
syslog(pri, "%s", buf);
else
mysyslog(LogSock, logflags, pri, tag, buf);
p = buf;
}
if (len > sizeof(buf) - 1) {
if (!usock && !server)
syslog(pri, "%s", *argv++);
else
mysyslog(LogSock, logflags, pri, tag, *argv++);
} else {
if (p != buf)
*p++ = ' ';
memmove(p, *argv++, len);
*(p += len) = '\0';
}
}
if (p != buf) {
if (!usock && !server)
syslog(pri, "%s", buf);
else
mysyslog(LogSock, logflags, pri, tag, buf);
}
} else {
char *msg;
int default_priority = pri;
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';
msg = buf;
pri = default_priority;
if (prio_prefix && msg[0] == '<')
msg = get_prio_prefix(msg, &pri);
if (!usock && !server)
syslog(pri, "%s", msg);
else
mysyslog(LogSock, logflags, pri, tag, msg);
}
}
if (!usock && !server)
closelog();
else
close(LogSock);
return EXIT_SUCCESS;
}
