Remove usyslogd/klogd and syslog utility program

This is split out to a seperate package.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>

1 files changed, 0 insertions, 273 deletions

diff --git a/syslogd/syslogd.c b/syslogd/syslogd.c
deleted file mode 100644
index 3b88299..0000000
--- a/syslogd/syslogd.c
+++ /dev/null
@@ -1,273 +0,0 @@
-/* SPDX-License-Identifier: GPL-3.0-or-later */
-/*
- * Copyright (C) 2018 - David Oberhollenzer
- *
- * 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 3 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, see <https://www.gnu.org/licenses/>.
- */
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <string.h>
-#include <getopt.h>
-#include <errno.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <pwd.h>
-#include <grp.h>
-
-#include "syslogd.h"
-#include "util.h"
-
-static const struct option long_opts[] = {
-	{ "help", no_argument, NULL, 'h' },
-	{ "version", no_argument, NULL, 'V' },
-	{ "rotate-replace", no_argument, NULL, 'r' },
-	{ "chroot", no_argument, NULL, 'c' },
-	{ "max-size", required_argument, NULL, 'm' },
-	{ "user", required_argument, NULL, 'u' },
-	{ "group", required_argument, NULL, 'g' },
-	{ NULL, 0, NULL, 0 },
-};
-
-static const char *short_opts = "hVcrm:u:g:";
-
-const char *usage_string =
-"Usage: usyslogd [OPTIONS..]\n\n"
-"The following options are supported:\n"
-"  -h, --help             Print this help text and exit\n"
-"  -V, --version          Print version information and exit\n"
-"  -r, --rotate-replace   Replace old log files when doing log rotation.\n"
-"  -m, --max-size <size>  Automatically rotate log files bigger than this.\n"
-"  -u, --user <name>      Run the syslog daemon as this user. If not set,\n"
-"                         try to use the user '" DEFAULT_USER "'.\n"
-"  -g, --group <name>     Run the syslog daemon as this group. If not set,\n"
-"                         try to use the group '" DEFAULT_GROUP "'.\n"
-"  -c, --chroot           If set, do a chroot into the log file path.\n";
-
-
-
-static volatile sig_atomic_t syslog_run = 1;
-static volatile sig_atomic_t syslog_rotate = 0;
-static int log_flags = 0;
-static size_t max_size = 0;
-static uid_t uid = 0;
-static gid_t gid = 0;
-static bool dochroot = false;
-
-
-
-static void sighandler(int signo)
-{
-	switch (signo) {
-	case SIGINT:
-	case SIGTERM:
-		syslog_run = 0;
-		break;
-	case SIGHUP:
-		syslog_rotate = 1;
-		break;
-	default:
-		break;
-	}
-}
-
-static void signal_setup(void)
-{
-	struct sigaction act;
-
-	memset(&act, 0, sizeof(act));
-	act.sa_handler = sighandler;
-
-	sigaction(SIGINT, &act, NULL);
-	sigaction(SIGTERM, &act, NULL);
-	sigaction(SIGHUP, &act, NULL);
-}
-
-static int handle_data(int fd)
-{
-	char buffer[2048];
-	syslog_msg_t msg;
-	ssize_t ret;
-
-	memset(buffer, 0, sizeof(buffer));
-
-	ret = read(fd, buffer, sizeof(buffer));
-	if (ret <= 0)
-		return -1;
-
-	if (syslog_msg_parse(&msg, buffer))
-		return -1;
-
-	return logmgr->write(logmgr, &msg);
-}
-
-static void process_options(int argc, char **argv)
-{
-	struct passwd *pw = getpwnam(DEFAULT_USER);
-	struct group *grp = getgrnam(DEFAULT_GROUP);
-	char *end;
-	int i;
-
-	if (pw != NULL)
-		uid = pw->pw_uid;
-
-	if (grp != NULL)
-		gid = grp->gr_gid;
-
-	for (;;) {
-		i = getopt_long(argc, argv, short_opts, long_opts, NULL);
-		if (i == -1)
-			break;
-
-		switch (i) {
-		case 'r':
-			log_flags |= LOG_ROTATE_OVERWRITE;
-			break;
-		case 'm':
-			log_flags |= LOG_ROTATE_SIZE_LIMIT;
-			max_size = strtol(optarg, &end, 10);
-			if (max_size == 0 || *end != '\0') {
-				fputs("Numeric argument > 0 expected for -m\n",
-				      stderr);
-				goto fail;
-			}
-			break;
-		case 'u':
-			pw = getpwnam(optarg);
-			if (pw == NULL) {
-				fprintf(stderr, "Cannot get UID for user %s\n",
-					optarg);
-				goto fail;
-			}
-			uid = pw->pw_uid;
-			break;
-		case 'g':
-			grp = getgrnam(optarg);
-			if (grp == NULL) {
-				fprintf(stderr,
-					"Cannot get GID for group %s\n",
-					optarg);
-				goto fail;
-			}
-			gid = grp->gr_gid;
-			break;
-		case 'c':
-			dochroot = true;
-			break;
-		case 'h':
-			fputs(usage_string, stdout);
-			exit(EXIT_SUCCESS);
-		case 'V':
-			print_version("usyslogd");
-		default:
-			goto fail;
-		}
-	}
-	return;
-fail:
-	fputs("Try `usyslogd --help' for more information\n", stderr);
-	exit(EXIT_FAILURE);
-}
-
-static int chroot_setup(void)
-{
-	if (mkdir(SYSLOG_PATH, 0750)) {
-		if (errno != EEXIST) {
-			perror("mkdir " SYSLOG_PATH);
-			return -1;
-		}
-	}
-
-	if (uid > 0 && gid > 0 && chown(SYSLOG_PATH, uid, gid) != 0) {
-		perror("chown " SYSLOG_PATH);
-		return -1;
-	}
-
-	if (chmod(SYSLOG_PATH, 0750)) {
-		perror("chmod " SYSLOG_PATH);
-		return -1;
-	}
-
-	if (chdir(SYSLOG_PATH)) {
-		perror("cd " SYSLOG_PATH);
-		return -1;
-	}
-
-	if (dochroot && chroot(SYSLOG_PATH) != 0) {
-		perror("chroot " SYSLOG_PATH);
-		return -1;
-	}
-
-	return 0;
-}
-
-static int user_setup(void)
-{
-	if (gid > 0 && setresgid(gid, gid, gid) != 0) {
-		perror("setgid");
-		return -1;
-	}
-	if (uid > 0 && setresuid(uid, uid, uid) != 0) {
-		perror("setuid");
-		return -1;
-	}
-	return 0;
-}
-
-int main(int argc, char **argv)
-{
-	int sfd, status = EXIT_FAILURE;
-
-	process_options(argc, argv);
-
-	signal_setup();
-
-	sfd = mksock(SYSLOG_SOCKET, SOCK_FLAG_EVERYONE | SOCK_FLAG_DGRAM);
-	if (sfd < 0)
-		return EXIT_FAILURE;
-
-	if (uid > 0 && gid > 0 && chown(SYSLOG_SOCKET, uid, gid) != 0) {
-		perror("chown " SYSLOG_SOCKET);
-		return -1;
-	}
-
-	if (chroot_setup())
-		return EXIT_FAILURE;
-
-	if (user_setup())
-		return EXIT_FAILURE;
-
-	if (logmgr->init(logmgr, log_flags, max_size))
-		goto out;
-
-	while (syslog_run) {
-		if (syslog_rotate) {
-			logmgr->rotate(logmgr);
-			syslog_rotate = 0;
-		}
-
-		handle_data(sfd);
-	}
-
-	status = EXIT_SUCCESS;
-out:
-	logmgr->cleanup(logmgr);
-	if (sfd > 0)
-		close(sfd);
-	unlink(SYSLOG_SOCKET);
-	return status;
-}