1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* App Configuration
*
* Copyright (c) 2012 David Herrmann <dh.herrmann@googlemail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Configuration
* Implementation of the configuration parsers.
*/
#include <errno.h>
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "conf.h"
#include "log.h"
#define LOG_SUBSYSTEM "config"
struct conf_obj conf_global = {
.exit = 0,
.debug = 0,
.verbose = 0,
};
static void print_help()
{
fprintf(stderr,
"Usage:\n"
"\t%1$s [options]\n"
"\t%1$s [options] -h\n"
"General Options:\n"
"\t-h, --help Print this help and exit\n"
"\t-v, --verbose Print verbose messages\n"
"\t --debug Enable debug mode\n",
"kmscon");
}
int conf_parse_argv(int argc, char **argv)
{
int show_help = 0;
char short_options[] = ":hv";
struct option long_options[] = {
{ "help", no_argument, &show_help, 1 },
{ "verbose", no_argument, NULL, 'v' },
{ "debug", no_argument, &conf_global.debug, 1 },
{ NULL, 0, NULL, 0 },
};
int idx;
int c;
if (!argv || argc < 1)
return -EINVAL;
opterr = 0;
while (1) {
c = getopt_long(argc, argv, short_options,
long_options, &idx);
if (c < 0)
break;
switch (c) {
case 0:
break;
case 'h':
show_help = 1;
break;
case 'v':
conf_global.verbose = 1;
break;
case ':':
fprintf(stderr, "Missing argument for option -%c\n",
optopt);
break;
case '?':
if (optopt)
fprintf(stderr, "Unknown argument -%c\n",
optopt);
else
fprintf(stderr, "Unknown argument %s\n",
argv[optind - 1]);
break;
}
}
if (optind != argc)
fprintf(stderr, "Unparsed remaining arguments\n");
if (conf_global.debug)
conf_global.verbose = 1;
if (show_help) {
print_help();
conf_global.exit = 1;
}
return 0;
}
|
