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 <stdio.h>
17 #include <unistd.h>
18 #include <getopt.h>
19 #include <stdlib.h>
20 #include <string.h>
21 #include "dump_syspara.h"
22
23 typedef struct {
24 char *serviceName;
25 int (*serviceHandler)();
26 } ServiceItem;
27
28 static const ServiceItem SERVICE_LIST[] = {
29 {"syspara", QuerySysparaCmd},
30 };
31
Usage()32 static void Usage()
33 {
34 printf("usage os_dump [--help | -l | SERVICE]\n"
35 " --help: shows this help\n"
36 " -l: only list services, do not dump them\n"
37 " SERVICE: dumps only service SERVICE\n");
38 };
39
main(int argc,char ** argv)40 int main(int argc, char **argv)
41 {
42 static struct option longOptions[] = {
43 {"help", no_argument, 0, 0},
44 {0, 0, 0, 0}
45 };
46 int serviceNum = (sizeof(SERVICE_LIST) / sizeof(ServiceItem));
47 int c;
48 int optionIndex = 0;
49 if (optind == argc) {
50 Usage();
51 return 0;
52 }
53
54 optind = 1;
55 while (1) {
56 c = getopt_long(argc, argv, "l", longOptions, &optionIndex);
57 if (c == -1) {
58 break;
59 }
60 switch (c) {
61 case 0:
62 if (!strcmp(longOptions[optionIndex].name, "help")) {
63 Usage();
64 }
65 break;
66 case 'l':
67 printf("OptionList:\n");
68 for (int i = 0; i < serviceNum; i = i + 1) {
69 printf("%s\n", SERVICE_LIST[i].serviceName);
70 }
71 break;
72 default:
73 Usage();
74 break;
75 }
76 }
77
78 for (int i = optind; i < argc; i++) {
79 for (int j = 0; j < serviceNum; j++) {
80 if (!strcmp(argv[i], SERVICE_LIST[j].serviceName)) {
81 int ret = SERVICE_LIST[j].serviceHandler();
82 return ret;
83 }
84 }
85 printf("Service %s not registered! Try os_dump --help\n", argv[i]);
86 break;
87 }
88 return 0;
89 }
90