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/*
* this program converts a pcap file to a C source file for use
* by testing code.
*
*/
#include <pcap.h>
#include <ctype.h>
#include <stdlib.h>
static int packnum = 0;
void pcap_skbuff(u_char *user,
const struct pcap_pkthdr *h,
const u_char *bytes)
{
FILE *out = (FILE *)user;
char line[81];
int pos;
int i;
packnum++;
fprintf(out, "const unsigned char packet%d_len=%d;\n", packnum, h->caplen);
fprintf(out, "const unsigned char packet%d[]={\n", packnum);
memset(line, ' ', sizeof(line));
line[53]='/';
line[54]='*';
line[65]='*';
line[66]='/';
line[67]='\n';
line[68]='\0';
pos=0;
for(i=0; i<h->caplen; i++) {
if(pos==8) {
fputs(line, out);
memset(line, ' ', sizeof(line));
line[53]='/';
line[54]='*';
line[65]='*';
line[66]='/';
line[67]='\n';
line[68]='\0';
pos=0;
}
/* line looks like:
* 0xXX, 0xYY, 0xZZ, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, /+ ........ +/
* 1 2 3 4 5 6
* 3456789012345678901234567890123456789012345678901234567890123456789
*/
snprintf(line+(pos*6)+4, 6, "0x%02x,", bytes[i]);
line[(pos*6)+4+5]=' ';
if(isprint(bytes[i])) {
line[pos+56]=bytes[i];
} else {
line[pos+56]='.';
}
pos++;
}
fputs(line, out);
fprintf(out, " 0};\n\n");
}
int main(int argc, char *argv[])
{
char *f;
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pc;
FILE *out = stdout;
while(--argc>0) {
f = *++argv;
pc = pcap_open_offline(f, errbuf);
if(pc == NULL) {
fprintf(stderr, "pcap_open_offline(%s): %s\n",
f, errbuf);
exit(10);
}
pcap_dispatch(pc, -1, pcap_skbuff, (u_char *)out);
pcap_close(pc);
}
}
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