[Bug 370557] [NEW] ifdata doesn't support long device names

[Alan Pope]

Public bug reported:

Binary package hint: moreutils

alan at hactar:~$ ifdata -sib wlan0
Invalid data read, check!
Error getting statistics for wlan0

alan at hactar:~$ cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:   51332     644    0    0    0     0          0         0    51332     644    0    0    0     0       0          0
  eth0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
wmaster0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
 wlan0:91263412   82099    0    0    0     0          0         0  8292238   65428    0    0    0     0       0          0
vboxnet0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  pan0:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0

This is due to the check on the field length of the device not being
long enough. wmaster0 is more than 6 chars.


*** moreutils/ifdata.c	2008-02-02 22:00:53.000000000 +0000
--- moreutils-0.34ubuntu2/ifdata.c	2009-05-01 19:58:38.000000000 +0100
***************
*** 246,252 ****
  
  	do {
  		int items = fscanf(fd,
! 			" %6[^:]:%llu %llu %llu %llu %llu %llu %llu %llu "
  			"%llu %llu %llu %llu %llu %llu %llu %llu",
  			name,
  			&ifstat->in_bytes,    &ifstat->in_packets,
--- 246,252 ----
  
  	do {
  		int items = fscanf(fd,
! 			" %20[^:]:%llu %llu %llu %llu %llu %llu %llu %llu "
  			"%llu %llu %llu %llu %llu %llu %llu %llu",
  			name,
  			&ifstat->in_bytes,    &ifstat->in_packets,

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
Package: moreutils 0.34
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: moreutils
Uname: Linux 2.6.28-11-generic i686

** Affects: moreutils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
ifdata doesn't support long device names
https://bugs.launchpad.net/bugs/370557
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