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+/*!

+ *  @file    main.c

+ *  @author  Kang IkSeon (ikseon1026@gmail.com)

+ *

+ *  @internal

+ *       Created:  2018년 01월 30일

+ *     Copyright:  Copyright (c) 2018, Kang IkSeon

+ */

+

+#include <stdio.h>

+#include <stdint.h>

+

+#include "src/dumpcode.h"

+

+#define MAX 4096

+#define SAMPLE "data/sample.pcap"

+

+typedef struct pcap_hdr_s {

+  uint32_t magic_number;   /* magic number */

+  uint16_t version_major;  /* major version number */

+  uint16_t version_minor;  /* minor version number */

+  int32_t  thiszone;       /* GMT to local correction */

+  uint32_t sigfigs;        /* accuracy of timestamps */

+  uint32_t snaplen;        /* max length of captured packets, in octets */

+  uint32_t network;        /* data link type */

+} pcap_hdr_t;

+

+typedef struct pcaprec_hdr_s {

+  uint32_t ts_sec;         /* timestamp seconds */

+  uint32_t ts_usec;        /* timestamp microseconds */

+  uint32_t incl_len;       /* number of octets of packet saved in file */

+  uint32_t orig_len;       /* actual length of packet */

+} pcaprec_hdr_t;

+

+int main() {

+  int n, len;

+  char buffer[MAX];

+

+  pcap_hdr_t header;

+  pcaprec_hdr_t packet;

+

+  FILE *fp;

+

+  if (!(fp= fopen(SAMPLE, "r"))) {

+    return 1;

+  }

+

+  n = fread(&header, 1, sizeof(header), fp);

+

+  printf("version : %d.%d\n\n",

+      header.version_major, header.version_minor);

+

+  while (1) {

+    if (fread(&packet, 1, sizeof(packet), fp) <= 0) break;

+    len = packet.incl_len;

+

+    if (fread(buffer, 1, len, fp) <= 0) break;

+

+    printf("packet length : %d [%d.%d]\n",

+        packet.incl_len, packet.ts_sec, packet.ts_usec);

+    dumpcode(buffer, len);

+    printf("\n");

+  }

+

+  fclose(fp);

+

+  return 0;

+}