iftop-users February 2014

iftop-users@domain

3 participants
2 discussions

[Iftop-users] the CPU usage is 100% when shell or perl script run iftop
by Darren (Chenji) Xu 13 Feb '14

13 Feb '14

Hi Paul, Do you encounter this issue? I haven't found this issue when I used tcpdump. I think it maybe a iftop bug. Thanks, Darren ------- PS: #!/bin/bash #tcpdump -nnlqp tcp & iftop -nt &

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[Iftop-users] [PATCH] Fix MAC address formatting
by Zev Weiss 07 Feb '14

07 Feb '14

Hi, Running iftop-1.0pre4 I noticed my MAC address getting printed with some bytes (the "negative" ones) sign-extended into 32 bits (i.e. with "ffffff" prefixed). The below patch restores more a conventional-looking format. Thanks, Zev Weiss diff -Naur iftop-1.0pre4.orig/iftop.c iftop-1.0pre4/iftop.c --- iftop-1.0pre4.orig/iftop.c 2014-01-19 12:21:19.000000000 -0800 +++ iftop-1.0pre4/iftop.c 2014-02-07 13:26:15.669698968 -0800 @@ -713,7 +713,7 @@ if(have_hw_addr) { fprintf(stderr, "MAC address is:"); for (i = 0; i < 6; ++i) - fprintf(stderr, "%c%02x", i ? ':' : ' ', (unsigned int)if_hw_addr[i]); + fprintf(stderr, "%c%02hhx", i ? ':' : ' ', if_hw_addr[i]); fprintf(stderr, "\n"); }

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iftop-users February 2014