Error on compilation

[Chris Wenk]

Hi there

I tried to compile several programs ported from a suse linux box.
Some compilation works but then I have also a lot of programs with
following error message:

sizeof applied to an incomplete type
dereferencing pointer to incomplete type

Does anybody know what I have to change ?

my compilation is as follow:  gcc -o test.exe test.c

the errors first appears at following statement (see ==>):

unsigned char *packet;
struct iphdr *ip;
struct icmphdr *icmp;

==> packet = (unsigned char *)malloc(sizeof(struct iphdr) +
                                                             sizeof(struct
icmphdr) + 8);


Thanks for help
Chris


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