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
|
#include "config.h"
#include "random-seed.h"
#include "util.h"
#include <stdio.h>
#include <stdlib.h>
#include <sys/resource.h>
#include <sys/stat.h>
static inline void usage() {
puts("usage: random-seed MODE FILE");
puts("see random-seed(8) for more information.");
}
static inline void caprlimit(int resource, rlim_t rlimit) {
struct rlimit rlim;
if (getrlimit(resource, &rlim) == -1) {
perror("warning: couldn't get resource limit");
return;
}
if (rlim.rlim_cur > rlimit) {
rlim.rlim_cur = rlimit;
if (setrlimit(resource, &rlim) == -1) {
perror("warning: couldn't set resource limit");
return;
}
}
}
int main(int argc, char *argv[]) {
char *mode, *seed_path;
switch (argc) {
case 2:
if (streq(argv[1], "-h") || streq(argv[1], "--help")) {
usage();
exit(0);
}
if (streq(argv[1], "-V") || streq(argv[1], "--version")) {
printf("random-seed %s\n", PACKAGE_VERSION);
exit(0);
}
mode = argv[1];
seed_path = DEFAULT_SEED_PATH;
break;
case 3:
mode = argv[1];
seed_path = argv[2];
break;
default:
fprintf(stderr, "error: invalid arguments\n");
usage();
exit(2);
}
umask(0);
caprlimit(RLIMIT_DATA, 32*1024*1024);
caprlimit(RLIMIT_FSIZE, 1*1024*1024);
run(mode, seed_path);
}
|
