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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <string.h>
#include <sys/uio.h>
#include <selinux/selinux.h>
#include "log.h"
static void init_klog_vwrite(int level, const char* fmt, va_list ap) {
static const char* tag = basename(getprogname());
char prefix[64];
snprintf(prefix, sizeof(prefix), "<%d>%s: ", level, tag);
char msg[512];
vsnprintf(msg, sizeof(msg), fmt, ap);
iovec iov[2];
iov[0].iov_base = prefix;
iov[0].iov_len = strlen(prefix);
iov[1].iov_base = msg;
iov[1].iov_len = strlen(msg);
klog_writev(level, iov, 2);
}
void init_klog_write(int level, const char* fmt, ...) {
va_list ap;
va_start(ap, fmt);
init_klog_vwrite(level, fmt, ap);
va_end(ap);
}
int selinux_klog_callback(int type, const char *fmt, ...) {
int level = KLOG_ERROR_LEVEL;
if (type == SELINUX_WARNING) {
level = KLOG_WARNING_LEVEL;
} else if (type == SELINUX_INFO) {
level = KLOG_INFO_LEVEL;
}
va_list ap;
va_start(ap, fmt);
init_klog_vwrite(level, fmt, ap);
va_end(ap);
return 0;
}
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