1/*
2 * Copyright (c) 2020 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <fcntl.h>
17#include <securec.h>
18#include <unistd.h>
19#include <time.h>
20
21#include "hilog_command.h"
22
23#define HILOG_DRIVER "/dev/hilog"
24#define HILOG_LOGBUFFER 1024
25
26#undef LOG_TAG
27#define LOG_TAG "hilogcat"
28
29int main(int argc, char *argv[])
30{
31    int ret;
32    bool printFlag = true;
33    if (argc > 1) {
34        ret = HilogCmdProc(LOG_TAG, argc, argv);
35        if (ret == -1 || g_hiviewConfig.silenceMod == SILENT_MODE_ON) {
36            return 0;
37        }
38    }
39    int fd = open(HILOG_DRIVER, O_RDONLY);
40    if (fd < 0) {
41        HILOG_ERROR(LOG_CORE, "open hilog driver failed\n");
42        return 0;
43    }
44    char *buf = malloc(HILOG_LOGBUFFER);
45    if (buf == NULL) {
46        close(fd);
47        return 0;
48    }
49    while (1) {
50        (void)memset_s(buf, HILOG_LOGBUFFER, 0, HILOG_LOGBUFFER);
51        ret = read(fd, buf, HILOG_LOGBUFFER);
52        if (ret < sizeof(struct HiLogEntry)) {
53            continue;
54        }
55        struct HiLogEntry *head = (struct HiLogEntry *)buf;
56
57        time_t rawtime;
58        struct tm *info = NULL;
59        struct tm nowTime = {0};
60        unsigned int sec = head->sec;
61        rawtime = (time_t)sec;
62        /* Get local time */
63        info = localtime_r(&rawtime, &nowTime);
64
65        printFlag = FilterLevelLog(g_hiviewConfig.level, *(head->msg));
66        if (!printFlag) {
67            continue;
68        }
69#define MODULE_OFFSET 2
70        printFlag = FilterModuleLog(g_hiviewConfig.logOutputModule, (head->msg) + MODULE_OFFSET);
71        if (!printFlag) {
72            continue;
73        }
74        if (info == NULL) {
75            continue;
76        }
77        buf[HILOG_LOGBUFFER - 1] = '\0';
78        printf("%02d-%02d %02d:%02d:%02d.%03d %d %d %s\n", info->tm_mon + 1, info->tm_mday, info->tm_hour, info->tm_min,
79            info->tm_sec, head->nsec / NANOSEC_PER_MIRCOSEC, head->pid, head->taskId, head->msg);
80    }
81    free(buf);
82    close(fd);
83    return 0;
84}
85