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Fix stack corruption in getsockopt
The option was inspected without considering the protocol level.
This could lead to a false assumption
of the size of the passed in buffer.
Fixes #303
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src/kernel/emulation/linux/network/getsockopt.c
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src/kernel/emulation/linux/network/getsockopt.c
···
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int sockopt_bsd_to_linux(int* level, int* optname, void** optval, void* optbuf)
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{
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-
if (*optname == LOCAL_PEERCRED)
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/* TCP_NODELAY and LOCAL_PEERCRED both have values of 1 */
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if (*optname == LOCAL_PEERCRED && *level == IPPROTO_IP)
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{
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struct xucred* c = (struct xucred*) optbuf;
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// Simulate euid 0