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
|
// SPDX-License-Identifier: MIT
#define WIN32_LEAN_AND_MEAN 1
#ifdef __cplusplus
# include <cstdlib>
# include <cstdio>
# include <cstring>
#else
# include <stdlib.h>
# include <stdio.h>
# include <string.h>
#endif
#include <unistd.h>
#ifdef _WIN32
# include <winsock2.h>
# include <ws2tcpip.h>
#else
# include <sys/socket.h>
# include <netdb.h>
#endif
#include <libHX/init.h>
#include <libHX/io.h>
#include "internal.h"
static int runner(void)
{
const char id[] = "SSH-2.0-OpenSSH_9.9";
struct addrinfo *res = nullptr;
int fd, ret;
if ((ret = HX_init()) <= 0) {
fprintf(stderr, "HX_init: %s\n", strerror(-ret));
return EXIT_FAILURE;
}
fd = socket(AF_INET6, SOCK_STREAM, 0);
if (fd < 0) {
perror("socket");
return EXIT_FAILURE;
}
if (getaddrinfo("::1", "22", NULL, &res) < 0) {
perror("getaddrinfo");
close(fd);
return EXIT_FAILURE;
}
if (connect(fd, res->ai_addr, res->ai_addrlen) < 0) {
perror("connect");
freeaddrinfo(res);
close(fd);
return EXIT_FAILURE;
}
if (HXio_fullwrite(fd, id, strlen(id)) < 0)
perror("write");
freeaddrinfo(res);
close(fd);
HX_exit();
return EXIT_SUCCESS;
}
int main(void)
{
int ret = runner();
if (ret != EXIT_SUCCESS)
fprintf(stderr, "FAILED\n");
return ret;
}
|