0 /*
1 * ISC License
2 * Copyright (c) 2023 RMF <rawmonk@firemail.cc>
3 */
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <time.h>
7 #include <string.h>
8 #include "macro.h"
9 #include "strlcpy.h"
10 #include "error.h"
11 #define KNOWN_HOSTS_INTERNAL
12 #include "known_hosts.h"
13 #define ABOUT_INTERNAL
14 #include "about.h"
15
16 int about_known_hosts_arg(const char *param) {
17 int ret;
18 if ((ret = known_hosts_forget(param))) return ret;
19 if ((ret = known_hosts_rewrite())) return ret;
20 return 0;
21 }
22
23 int about_known_hosts(char **out, size_t *length_out) {
24
25 char *data = NULL;
26 size_t length = 0;
27 size_t i;
28 const char title[] = "# Known hosts\n\n";
29
30 if (!(data = dyn_strcat(data, &length, V(header)))) goto fail;
31 if (!(data = dyn_strcat(data, &length, V(title)))) goto fail;
32
33 for (i = 0; i < HT_SIZE; i++) {
34 struct known_host *ptr;
35 for (ptr = known_hosts[i]; ptr; ptr = ptr->next) {
36 char buf[1024], from[64], to[64];
37 int len;
38 struct tm *tm;
39
40 tm = localtime(&ptr->start);
41 strftime(V(from), "%Y/%m/%d %H:%M:%S", tm);
42
43 tm = localtime(&ptr->end);
44 strftime(V(to), "%Y/%m/%d %H:%M:%S", tm);
45
46 len = snprintf(V(buf),
47 "* %s\n> Hash: %s\n"
48 "> From: %s\n> Expiration: %s\n"
49 "=>/%ld Forget\n\n",
50 ptr->host, ptr->hash,
51 from, to, i) + 1;
52 if (!(data = dyn_strcat(data, &length, buf, len)))
53 goto fail;
54 }
55 }
56
57 *out = data;
58 *length_out = length;
59 return 0;
60 fail:
61 free(data);
62 return ERROR_MEMORY_FAILURE;
63 }
64