mirror of https://github.com/dirtbags/fluffy.git
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
#ifndef __PCAP_H__
|
|
#define __PCAP_H__
|
|
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
|
|
#define MAGIC 0xa1b2c3d4
|
|
#define MAXFRAME 65535
|
|
|
|
struct pcap_file {
|
|
FILE *f;
|
|
int swap;
|
|
};
|
|
|
|
struct pcap_file_header {
|
|
uint32_t magic;
|
|
uint16_t version_major;
|
|
uint16_t version_minor;
|
|
int32_t thiszone; /* gmt to local correction */
|
|
uint32_t sigfigs; /* accuracy of timestamps */
|
|
int32_t snaplen; /* max length saved portion of each pkt */
|
|
int32_t linktype; /* data link type (LINKTYPE_*) */
|
|
};
|
|
|
|
struct pcap_pkthdr {
|
|
struct pcap_timeval {
|
|
uint32_t tv_sec;
|
|
uint32_t tv_usec;
|
|
} ts; /* time stamp */
|
|
uint32_t caplen; /* length of portion present */
|
|
uint32_t len; /* length this packet (off wire) */
|
|
};
|
|
|
|
#ifndef max
|
|
# define max(a, b) ((a)>(b)?(a):(b))
|
|
#endif
|
|
|
|
#ifndef min
|
|
# define min(a, b) ((a)<(b)?(a):(b))
|
|
#endif
|
|
|
|
#define bswap32(i) (((i & 0xff000000) >> 030) | \
|
|
((i & 0x00ff0000) >> 010) | \
|
|
((i & 0x0000ff00) << 010) | \
|
|
((i & 0x000000ff) << 030))
|
|
#define bswap16(i) (((i & 0xff00) >> 010) | \
|
|
((i & 0x00ff) << 010))
|
|
|
|
|
|
/* Debugging help */
|
|
|
|
int pcap_open_in(struct pcap_file *ctx, FILE *f);
|
|
int pcap_open_out(struct pcap_file *ctx, FILE *f);
|
|
int pcap_read_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
|
int pcap_write_pkthdr(struct pcap_file *ctx, struct pcap_pkthdr *hdr);
|
|
void pcap_close(struct pcap_file *ctx);
|
|
|
|
#endif /* __PCAP_H__ */
|