DNS Enumeration In C

dns-enum.c

#include <stdio.h>
#include <netdb.h>
#include <arpa/inet.h>

int main(int argc, char *argv[]) {
    if (argc < 2) {
        printf("Usage: %s <domain>\n", argv[0]);
        return 1;
    }

    char *domain = argv[1];
    struct hostent *host;

    host = gethostbyname(domain);
    if (host == NULL) {
        perror("gethostbyname");
        return 1;
    }

    printf("[+] DNS Records for %s:\n", domain);
    for (int i = 0; host->h_addr_list[i]; i++) {
        struct in_addr addr;
        memcpy(&addr, host->h_addr_list[i], sizeof(struct in_addr));
        printf("[-] %s\n", inet_ntoa(addr));
    }

    return 0;
}