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