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
|
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
static void test(const char *);
int
main() {
test("192.5.4.0/23");
test("192.5.4.0");
test("192.5.5.1");
test("192.5.5.1/23");
test("192.5.5.1/24");
test("192.5.5.1/28");
test("192.5.5.1/32");
return (0);
}
static void
test(const char *input) {
int bits;
u_char temp[sizeof (struct in_addr)];
char output[sizeof "255.255.255.255/32"];
memset(temp, 0x5e, sizeof temp);
if (inet_cidr_pton(AF_INET, input, temp, &bits) < 0) {
perror(input);
exit(1);
}
if (inet_cidr_ntop(AF_INET, temp, bits, output, sizeof output)==NULL){
perror("inet_cidr_ntop");
exit(1);
}
printf("input '%s', temp '%x %x %x %x', bits %d, output '%s'\n",
input, temp[0], temp[1], temp[2], temp[3], bits, output);
}
|
