geoip-city-int.c

#include <stdio.h>
#include <GeoIPCity.h>

int main(int argc, char *argv[])
{
    GeoIP *geo;
    char buf[32768];
    unsigned long ip;
    GeoIPRecord *rec;

    geo = GeoIP_open_type(GEOIP_CITY_EDITION_REV1, GEOIP_MEMORY_CACHE);
    if (geo == NULL)
    {
        fprintf(stderr, "Failed to open GeoIP city database\n");
        return 100;
    }

    while (!feof(stdin))
    {
        if (fgets(buf, sizeof(buf), stdin) == NULL)
            break;
        if (sscanf(buf, "%lu", &ip) != 1)
            continue;
        if (ip >= 4294967296)
            continue;

        rec = GeoIP_record_by_ipnum(geo, ip);
        printf("%lu", ip);
        if (rec == NULL)
            printf("\tNULL\tNULL\tNULL\tNULL\tNULL\tNULL\tNULL\tNULL\n");
        else
        {
            printf("\t%s\t%s\t%s\t%s",
                   rec->country_code,
                   rec->region ? rec->region : "NULL",
                   rec->city ? rec->city : "NULL",
                   rec->postal_code ? rec->postal_code : "NULL");
            if (rec->dma_code)
                printf("\t%d", rec->dma_code);
            else
                printf("\tNULL");
            if (rec->area_code)
                printf("\t%d", rec->area_code);
            else
                printf("\tNULL");
            if (rec->latitude)
               printf("\t%0.6f", rec->latitude);
            else
               printf("\tNULL");
            if (rec->longitude)
               printf("\t%0.6f", rec->longitude);
            else
               printf("\tNULL");
            printf("\n");
        }
    }

    return 0;
}