How do you implement GetIpNetTable in C?

Answer 1

To implement GetIpNetTable in C, you first need to include the necessary headers, typically <winsock2.h> and <iphlpapi.h>. Then, you can define a variable to hold the table data and a DWORD for the size of the table. Call GetIpNetTable with the appropriate parameters, checking the return value to ensure the operation was successful. Here's a basic example:

#include <winsock2.h>
#include <iphlpapi.h>
#include <stdio.h>

int main() {
    ULONG size = 0;
    GetIpNetTable(NULL, &size, 0); // Get the required size
    MIB_IPNETTABLE* table = (MIB_IPNETTABLE*)malloc(size); // Allocate memory
    if (GetIpNetTable(table, &size, 0) == NO_ERROR) {
        // Process the table
    }
    free(table);
    return 0;
}