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):
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@ -141,6 +141,8 @@ int raw_socket(int ifindex)
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DEBUG(LOG_ERR, "socket call failed: %m");
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return -1;
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}
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while (fd >= 0 && fd < 3) fd = dup(fd); /* don't let daemon close fds on us */
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sock.sll_family = AF_PACKET;
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sock.sll_protocol = htons(ETH_P_IP);
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