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| author | Eric Andersen | 2003-11-14 03:00:04 +0000 |
|---|---|---|
| committer | Eric Andersen | 2003-11-14 03:00:04 +0000 |
| commit | c16686c1e2e29f99de34a79aed30999fd961ca70 (patch) | |
| tree | 5192d845815ef38302ce9415352f2aa247931ef6 | |
| parent | 61b038acccba5cceb0e2c8a4662b3a40f4a29493 (diff) | |
| download | busybox-c16686c1e2e29f99de34a79aed30999fd961ca70.zip busybox-c16686c1e2e29f99de34a79aed30999fd961ca70.tar.gz | |
Ulrich Marx writes:
hello
i had some trouble with the filedescriptor in udhcp.
Two things happened on my device:
1.) broken or not connected cable (no dhcp-server)
2.) daemonizing (starting with option -b)
i got a filedescriptor fd=0 from function raw_socket,
after daemonizing (daemon call) the fd is closed.
Client can't recieve data's anymore.
i fixed this problem (like pidfile handling):
| -rw-r--r-- | networking/udhcp/socket.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/networking/udhcp/socket.c b/networking/udhcp/socket.c index f12fa92..df00e69 100644 --- a/networking/udhcp/socket.c +++ b/networking/udhcp/socket.c @@ -141,6 +141,8 @@ int raw_socket(int ifindex) DEBUG(LOG_ERR, "socket call failed: %m"); return -1; } + + while (fd >= 0 && fd < 3) fd = dup(fd); /* don't let daemon close fds on us */ sock.sll_family = AF_PACKET; sock.sll_protocol = htons(ETH_P_IP); |