#include <stdio.h>
#include <stdlib.h>
#include <string.h>

unsigned get_iterations(FILE *fp, const char delimiter)
{
    long pos = ftell(fp);
    unsigned cases = 0;
    char c;
    while ((c = fgetc(fp)) && !feof(fp))
    {
        if (c == delimiter)
            cases++;
    }
    fseek(fp, pos, SEEK_SET);
    return cases;
}

unsigned get_linelength(FILE *fp, const char delimiter)
{
    long pos = ftell(fp);
    unsigned len = 2; /* this refuses to work unless it's 2+ */
    while (fgetc(fp) != delimiter)
    {
        len++;
    }
    fseek(fp, pos, SEEK_SET);
    return len;
}

int main(int argc, char **argv)
{
    if (argc != 2)
    {
        printf("usage: %s %s\n", argv[0], "filename");
        return 0;
    }
    FILE *file = fopen(argv[1], "r");
    if (!file)
    {
        perror("Could not open file.\n");
        return 1;
    }
    char arr[1000][1000] = { {0} };
    unsigned cases = get_iterations(file, '\n');
    unsigned i = 0;
    while (i++ < cases)
    {
        unsigned len = get_linelength(file, '\n');
        char *str = (char *) malloc(sizeof(char) * len);
        fgets(str, len, file);
        printf("test: len %u, str: %s\n", len, str);
        free(str);
    }
    fclose(file);
    return 0;
}