Programming

In file included from /usr/include/sys/socket.h:40:0,
                 from test.c:17:
/usr/include/bits/socket.h:217:5: error: expected identifier before numeric constant

#include <sys/socket.h>

#include <stdio.h>
#include <stdlib.h>
#include <libnetfilter_log/libipulog.h>
#include <netinet/ip.h>

#define MYBUFSIZ 2048
#define GROUP 1
#define COUNT 100

int main(int argc, char *argv[]) {
    struct ipulog_handle *h;
    unsigned char* buf;
    int len;
    ulog_packet_msg_t *upkt;
    int i;

    /* allocate a receive buffer */
    buf = (unsigned char *) malloc(MYBUFSIZ);
    if (!buf)
        exit(1);

    /* create ipulog handle */
    h = ipulog_create_handle(ipulog_group2gmask(GROUP), 65535);
    if (!h) {
        /* if some error occurrs, print it to stderr */
        ipulog_perror( NULL);
        exit(1);
    }

    /* loop receiving packets and handling them over to handle_packet */
    for (i = 0; i < COUNT; i++) {
        len = ipulog_read(h, buf, MYBUFSIZ, 1);
        if (len <= 0) {
            ipulog_perror("ulog_test: short read");
            exit(1);
        }
        printf("%d bytes received\n", len);
        while (upkt = ipulog_get_packet(h, buf, len)) {
            struct iphdr *iph = (struct iphdr *) upkt->payload;
            printf("%d\n", iph->saddr);
        }
    }

    /* just to give it a cleaner look */
    ipulog_destroy_handle(h);
    return 0;
}

gcc test.c

In file included from /usr/include/sys/socket.h:40:0,
                 from /usr/include/netinet/in.h:25,
                 from /usr/include/netinet/ip.h:25,
                 from test.c:4:
/usr/include/bits/socket.h:217:5: error: expected identifier before numeric constant

#include <libnetfilter_log/libipulog.h>
#include <netinet/ip.h>

#include <netinet/ip.h>
#include <libnetfilter_log/libipulog.h>