blob: c1032a2fb90be7989009d377ace2f9cdbd08f5be (
plain)
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
|
#pragma once
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
uint32_t crc32(const uint8_t *buf, size_t len);
uint16_t ip_checksum(const uint8_t *buf, size_t len);
uint16_t ip_checksumphdr(
const uint8_t *buf, size_t len,
uint32_t ip1, uint32_t ip2,
uint16_t proto);
/* 0 on success, negative failure */
int ip_parse(const char *s, uint32_t *ip);
static inline void nput16(void *vbuf, uint16_t n) {
uint8_t *b = vbuf;
b[0] = n >> 8;
b[1] = n >> 0;
}
static inline void nput32(void *vbuf, uint32_t n) {
uint8_t *b = vbuf;
b[0] = n >> 24;
b[1] = n >> 16;
b[2] = n >> 8;
b[3] = n >> 0;
}
static inline uint16_t nget16(const void *vbuf) {
const uint8_t *b = vbuf;
return (b[0] << 8)
| (b[1] << 0);
}
static inline uint32_t nget32(const void *vbuf) {
const uint8_t *b = vbuf;
return (b[0] << 24)
| (b[1] << 16)
| (b[2] << 8)
| (b[3] << 0);
}
|
