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static char rcsid[] = "@(#)$Id: spy.c,v 1.2 1995/01/25 13:41:44 jkr Exp jkr $";
/*******************************************************************************
* II - Version 0.1 $Revision: 1.2 $ $State: Exp $
*
* Copyright 1994 Dietmar Friede
*******************************************************************************
* Bug reports, patches, comments, suggestions should be sent to:
*
* jkr@saarlink.de or jkrause@guug.de
*
*******************************************************************************
* $Log: spy.c,v $
*
******************************************************************************/
#include <stdio.h>
#include <signal.h>
#include <fcntl.h>
#include <ctype.h>
#include <sys/time.h>
#define BSIZE 1024+sizeof(struct timeval)+sizeof(unsigned long)+1
unsigned char buf[BSIZE];
FILE *Fout = NULL;
static void
catchsig()
{
printf("EXIT\n");
exit(1);
}
main(argc, argv)
int argc;
char **argv;
{
int f, n;
struct timeval *t = (struct timeval *) & buf[sizeof(unsigned long) + 1];
char *b = &buf[sizeof(struct timeval) + sizeof(unsigned long) + 1];
struct tm *s;
if ((f = open("/dev/ispy", O_RDONLY)) < 0)
{
perror(argv[1]);
exit(1);
}
argv++;
if (*argv)
Fout = fopen(*argv, "w");
(void) signal(SIGHUP, catchsig);
(void) signal(SIGTERM, catchsig);
(void) signal(SIGKILL, catchsig);
(void) signal(SIGINT, catchsig);
(void) signal(SIGQUIT, catchsig);
for (;;)
{
n = read(f, buf, BSIZE);
n -= sizeof(struct timeval) + sizeof(unsigned long) + 1;
s = localtime(&t->tv_sec);
if (*buf)
printf("> ");
else
printf("< ");
printf("%.4d: %.2d:%.2d:%.2d.%.2d len %d:\n", *(unsigned long *) &buf[1],
s->tm_hour, s->tm_min, s->tm_sec, t->tv_usec / 10000, n);
if (Fout != NULL)
{
if (*buf)
fprintf(Fout, "> ");
else
fprintf(Fout, "< ");
fprintf(Fout, "%.4d: %.2d:%.2d:%.2d.%.2d len %d:\n",
*(unsigned long *) &buf[1], s->tm_hour, s->tm_min,
s->tm_sec, t->tv_usec / 10000, n);
}
if (n > 0)
{
dumpbuf(stdout, n, b);
if (Fout != NULL)
dumpbuf(Fout, n, b);
}
}
}
dumpbuf(FILE * f, int n, unsigned char *buf)
{
int i, j;
for (i = 0; i < n; i += 16)
{
fprintf(f, "%.3x ", i);
for (j = 0; j < 16; j++)
if (i + j < n)
fprintf(f, "%02x ", buf[i + j]);
else
fprintf(f, " ");
fprintf(f, " ");
for (j = 0; j < 16 && i + j < n; j++)
if (isprint(buf[i + j]))
fprintf(f, "%c", buf[i + j]);
else
fputc('.', f);
fputc('\n', f);
}
fflush(f);
}
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