test017.c

#include <ntar.h>
#include <time.h>
#include <string.h>
#include <stdlib.h>

int main()
{
    ntar_file_handle *file_handle;
    int ret_value;
    unsigned int num_packets;
    unsigned int packet_size;
    char file_name[256];
    char line[256];
    time_t SystemTime;
    struct tm *lt;

    line[255] = 0;
    
    do
    {   
        printf("Packet size: ");
        fgets(line, 255, stdin);
    }
    while(sscanf(line,"%u", &packet_size) == 0 || packet_size > 1518);

    do
    {   
        printf("Number of packets: ");
        fgets(line, 255, stdin);
    }
    while(sscanf(line,"%u", &num_packets) == 0);

    file_name[255] = 0;
    printf("File name: ");
    fgets(file_name, 255, stdin);
    file_name[strlen(file_name) - 1] = 0;

    SystemTime = time(NULL);
    lt = localtime(&SystemTime);

    if (lt != NULL)
        fprintf(stderr, "Test started at %.04u-%.02u-%.02u %.02u:%02u:%02u\n", 
            lt->tm_year,
            lt->tm_mon,
            lt->tm_mday,
            lt->tm_hour,
            lt->tm_min,
            lt->tm_sec);
    else
        fprintf(stderr,"Test started at <UNKNOWN TIME>\n");

    ret_value = ntar_open(file_name,"w",&file_handle);

    if (ret_value == NTAR_SUCCESS)
    {
        ntar_section_handle *section_handle;

        fprintf(stderr, "File created\n");

        ret_value = ntar_create_section(file_handle, &section_handle);

        if (ret_value == NTAR_SUCCESS)
        {
            interface_description_block idb_data;
            ntar_block_handle *block_handle;
            pkt_block pkt_data;
            char packet[1518];
            unsigned int i;

            fprintf(stderr,"Section created\n");

            idb_data.link_type = 2;
            idb_data.snaplen = 96;
            idb_data.reserved = 0;

            ret_value = ntar_create_block(section_handle, BLOCK_ID_IDB, &idb_data, &block_handle);

            if (ret_value == NTAR_SUCCESS)
            {

                ret_value = ntar_close_block(block_handle);

                if (ret_value != NTAR_SUCCESS)
                    fprintf(stderr,"ERROR closing block: %d\n", ret_value);
            }           
            else
                fprintf(stderr,"ERROR creating block: %d\n", ret_value);

            pkt_data.captured_len = packet_size;
            pkt_data.drops_count = 0;
            pkt_data.interface_id = 0;
            pkt_data.packet_data = packet;
            pkt_data.packet_len = packet_size;
            pkt_data.timestamp_high = 0;
            pkt_data.timestamp_low = 0;

            memset(packet, rand(),1518);

            for (i = 0; i < num_packets; i++)
            {
                ret_value = ntar_create_block(section_handle, BLOCK_ID_PKTB, &pkt_data, &block_handle);
                if (ret_value == NTAR_SUCCESS)
                {
                    ret_value = ntar_close_block(block_handle);

                    if (ret_value != NTAR_SUCCESS)
                    {
                        fprintf(stderr,"ERROR closing block: %d\n", ret_value);
                        break;
                    }
                }
                else
                {
                    fprintf(stderr, "ERROR creating block: %d\n", ret_value);
                    break;
                }
            }
            
            ret_value = ntar_close_section(section_handle);

            if (ret_value == NTAR_SUCCESS)
                fprintf(stderr,"Section closed\n");
            else
                fprintf(stderr,"ERROR closing section: %d\n", ret_value);

        }
        else
            fprintf(stderr, "ERROR creating section: %d\n", ret_value);

        ret_value = ntar_close(file_handle);

        if (ret_value == NTAR_SUCCESS)
            fprintf(stderr,"File closed\n");
        else
            fprintf(stderr,"ERROR closing file: %d\n", ret_value);

    }
    else
        fprintf(stderr, "ERROR creating file: %d\n", ret_value);

    SystemTime = time(NULL);
    lt = localtime(&SystemTime);

    if (lt != NULL)
        fprintf(stderr, "Test ended at %.04u-%.02u-%.02u %.02u:%02u:%02u\n", 
            lt->tm_year,
            lt->tm_mon,
            lt->tm_mday,
            lt->tm_hour,
            lt->tm_min,
            lt->tm_sec);
    else
        fprintf(stderr,"Test ended at <UNKNOWN TIME>\n");
        
        
        
    return 0;
}

---

NTAR documentation. Copyright (c) 2004 - 2005 Condor Engineering, Inc. All rights reserved.