e1_input: Fix compiler warning by using offsetof
Use the offsetof/__builtin_offsetof to determine the offset of a variable inside a structure instead of going via a NULL pointer and taking the address. This fixes: warning: variably modified ‘dummyhalen_offset’ at file scope
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@ -110,11 +110,11 @@ struct lapd_header {
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u_int8_t control_foo; /* fake UM's ... */
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u_int8_t control_foo; /* fake UM's ... */
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} __attribute__((packed));
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} __attribute__((packed));
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static_assert((int)&((struct fake_linux_lapd_header*)NULL)->hatype == 2, hatype_offset);
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static_assert(offsetof(struct fake_linux_lapd_header, hatype) == 2, hatype_offset);
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static_assert((int)&((struct fake_linux_lapd_header*)NULL)->halen == 4, halen_offset);
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static_assert(offsetof(struct fake_linux_lapd_header, halen) == 4, halen_offset);
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static_assert((int)&((struct fake_linux_lapd_header*)NULL)->addr == 6, addr_offset);
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static_assert(offsetof(struct fake_linux_lapd_header, addr) == 6, addr_offset);
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static_assert((int)&((struct fake_linux_lapd_header*)NULL)->protocol == 14, proto_offset);
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static_assert(offsetof(struct fake_linux_lapd_header, protocol) == 14, proto_offset);
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static_assert(sizeof(struct fake_linux_lapd_header) == 16, lapd_header_size);
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static_assert(sizeof(struct fake_linux_lapd_header) == 16, lapd_header_size);
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static int pcap_fd = -1;
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static int pcap_fd = -1;
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