Network Trace And Retrieval (NTAR) library: test018.c

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

int main()
{
    ntar_file_handle *file_handle;
    int ret_value;
    char file_name[256];
    time_t SystemTime;
    struct tm *lt;
    unsigned int num_blocks = 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,"r",&file_handle);

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

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

        ret_value = ntar_get_next_section(file_handle, &section_handle);

        if (ret_value == NTAR_SUCCESS)
        {
            ntar_block_handle *block_handle;

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

            ret_value = ntar_get_next_block(section_handle, &block_handle);
            
            while(ret_value == NTAR_SUCCESS)
            {
                num_blocks++;
                
                ret_value = ntar_close_block(block_handle);

                if (ret_value != NTAR_SUCCESS)
                    fprintf(stderr,"Block closed\n");

                ret_value = ntar_get_next_block(section_handle, &block_handle);
            }

            if (ret_value != NTAR_FAILURE_NOMOREBLOCKS && ret_value != NTAR_FAILURE_EOF)
                fprintf(stderr, "ERROR get next_block returned %d\n", ret_value);

            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);
        }

        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 opening file: %d\n", ret_value);


    printf("Number of blocks = %u\n", num_blocks);

    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;
}