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Gracefully handle unreadable /sys/class/net/dev/ nodes

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Fixes https://bugs.gentoo.org/629228
Fixes #189
Fixes #185
Fixes #178
This commit is contained in:
Marcel Greter 2017-12-09 23:18:03 +01:00 committed by William Hubbs
parent fb96c9c127
commit 5c81661d47
1 changed files with 5 additions and 5 deletions
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10
init.d/net-online.in
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@ -31,7 +31,7 @@ get_interfaces()
start () start ()
{ {
local carriers configured dev gateway ifcount infinite local carriers configured dev gateway ifcount infinite
local rc state x local carrier operstate rc
ebegin "Checking to see if the network is online" ebegin "Checking to see if the network is online"
rc=0 rc=0
@ -44,10 +44,10 @@ start ()
ifcount=0 ifcount=0
for dev in ${interfaces}; do for dev in ${interfaces}; do
: $((ifcount += 1)) : $((ifcount += 1))
read x < /sys/class/net/$dev/carrier read carrier < /sys/class/net/$dev/carrier 2> /dev/null
[ $x -eq 1 ] && : $((carriers += 1)) [ $carrier -eq 1 ] && : $((carriers += 1))
read x < /sys/class/net/$dev/operstate read operstate < /sys/class/net/$dev/operstate 2> /dev/null
[ "$x" = up ] && : $((configured += 1)) [ "$operstate" = up ] && : $((configured += 1))
done done
[ $configured -eq $ifcount ] && [ $carriers -ge 1 ] && break [ $configured -eq $ifcount ] && [ $carriers -ge 1 ] && break
sleep 1 sleep 1