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
|
/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <err.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
typedef unsigned char byte;
static const char *uuidGen(void) {
byte uuid[16];
arc4random_buf(uuid, sizeof(uuid));
uuid[6] &= 0x0F;
uuid[6] |= 0x40;
uuid[8] &= 0x3F;
uuid[8] |= 0x80;
static char str[sizeof("00000000-0000-0000-0000-000000000000")];
snprintf(
str, sizeof(str),
"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
uuid[0], uuid[1], uuid[2], uuid[3],
uuid[4], uuid[5], uuid[6], uuid[7],
uuid[8], uuid[9], uuid[10], uuid[11],
uuid[12], uuid[13], uuid[14], uuid[15]
);
return str;
}
int main(int argc, char *argv[]) {
const char *path = ".notemap";
bool add = false;
int opt;
while (0 < (opt = getopt(argc, argv, "am:"))) {
switch (opt) {
break; case 'a': add = true;
break; case 'm': path = optarg;
break; default: return EX_USAGE;
}
}
if (add) {
FILE *map = fopen(path, "a");
if (!map) err(EX_CANTCREAT, "%s", path);
for (int i = optind; i < argc; ++i) {
if (access(argv[i], R_OK)) err(EX_NOINPUT, "%s", argv[i]);
fprintf(map, "%s %s\n", uuidGen(), argv[i]);
if (ferror(map)) err(EX_IOERR, "%s", path);
}
int error = fclose(map);
if (error) err(EX_IOERR, "%s", path);
}
}
|