#include "devil1pld.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct PldHeader *getpldh(const char *filedata) {
    if (filedata == NULL) {
        return NULL;
    }
    int32_t *n                = (int32_t*)filedata;
    struct PldHeader *ph      = (struct PldHeader*)malloc(
        sizeof(struct PldHeader)
    );   
    uint32_t size_offsets = sizeof(uint32_t) * n[0];
    ph -> offsets         = (uint32_t*)malloc(size_offsets);
    if (ph -> offsets == NULL) {
        perror("Error 4: ");
        free(ph);
        free(ph -> offsets);
        return NULL;
    }
    // set data of struct.
    ph -> numOffset = n[0];
    memcpy(ph -> offsets, filedata + sizeof(int32_t), size_offsets);
    return ph;
}

void destroypldh(struct PldHeader *ph) {
    free(ph -> offsets);
    free(ph);
    ph = NULL;
}

void printpldh(struct PldHeader *ph) {
    if (ph == NULL) {
        return;
    }
    printf("number of offsets = %i\n", ph -> numOffset);
    unsigned int i;
    for (i = 0; i < ph -> numOffset; i++) {
        printf("offset %i = %x\n", i, ph -> offsets[i]);
    }
}