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… | |
| 235 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
235 | dnsv4_fd = socket (PF_INET, SOCK_DGRAM, IPPROTO_UDP); |
| 236 | |
236 | |
| 237 | if (dnsv4_fd < 0) |
237 | if (dnsv4_fd < 0) |
| 238 | return -1; |
238 | return -1; |
| 239 | |
239 | |
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240 | #if defined(SOL_IP) && defined(IP_MTU_DISCOVER) |
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241 | // this I really consider a linux bug. I am neither connected |
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242 | // nor do I fragment myself. Linux still sets DF and doesn't |
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243 | // fragment for me sometimes. |
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244 | { |
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245 | int oval = IP_PMTUDISC_DONT; |
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246 | setsockopt (udpv4_fd, SOL_IP, IP_MTU_DISCOVER, &oval, sizeof oval); |
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247 | } |
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248 | #endif |
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249 | |
| 240 | // standard daemon practise... |
250 | // standard daemon practise... |
| 241 | { |
251 | { |
| 242 | int oval = 1; |
252 | int oval = 1; |
| 243 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
253 | setsockopt (dnsv4_fd, SOL_SOCKET, SO_REUSEADDR, &oval, sizeof oval); |
| 244 | } |
254 | } |
