Patch by for dsniff >= 2.4b1, which adds a clock fix. It was improved by Robert Scheck to work with older Linux kernel versions, too. --- dsniff-2.4b1/sshow.c 2007-12-03 23:50:12.000000000 +0100 +++ dsniff-2.4b1/sshow.c.sysconf_clocks 2007-12-03 23:53:12.000000000 +0100 @@ -217,6 +217,9 @@ { clock_t delay; int payload; +#if defined(_SC_CLK_TCK) + long CLK_TCK = sysconf(_SC_CLK_TCK); +#endif delay = add_history(session, 0, cipher_size, plain_range); @@ -265,6 +268,9 @@ clock_t delay; int skip; range string_range; +#if defined(_SC_CLK_TCK) + long CLK_TCK = sysconf(_SC_CLK_TCK); +#endif delay = add_history(session, 1, cipher_size, plain_range);