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
|
#define _POSIX_C_SOURCE 200112L
#include "cptc.h"
#include <ctype.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdnoreturn.h>
#include <getopt.h>
#include <fcntl.h>
#include <unistd.h>
const char *CPTC_token;
static struct option long_options[] =
{
{"help", no_argument, NULL, 'h'},
{"host", no_argument, NULL, 'i'},
{"port", no_argument, NULL, 'p'},
{0}
};
noreturn void usage(char *name, bool full)
{
fprintf(
full ? stdout : stderr,
full ?
"usage: %s [-h] [-i/--host IP] [-p/--port PORT]\n"
"Also requires CPTC_TOKEN environment variable set to some discord\n"
"bot's token\n\n"
"Options:\n"
" -h, --help show this help message and quit\n"
" -i, --host IP set bind address to IP )default: 127.0.0.1)\n"
" -p, --port PORT set bind port to PORT (default: 8080)\n"
:
"Try '%s --help' for more information\n",
name
);
exit(!full);
}
static bool isnumber(const char *s)
{
for (const char *cp = s; *cp != '\0'; ++cp)
if (!isdigit(*cp))
return false;
return true;
}
int main(int argc, char **argv)
{
char *address = "127.0.0.1";
int port = 8080;
int ch;
CPTC_token = getenv("CPTC_TOKEN");
while ((ch = getopt_long(argc, argv, "hi:p:", long_options, NULL)) != EOF)
{
switch (ch)
{
case 'i':
address = optarg;
break;
case 'p':
if (!isnumber(optarg))
{
fprintf(stderr, "%s: port should be an unsigned integer\n", argv[0]);
usage(argv[0], false);
}
port = atoi(optarg);
break;
case 'h':
usage(argv[0], true);
/* NOTREACHED */
default:
usage(argv[0], false);
/* NOTREACHED */
}
}
CPTC(address, port);
}
|