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

int main(void) {
    FILE *fd;
    char *buf, *secName; 
    int bufSz;

    fd = fopen("a.exe", "rb");
    fseek(fd, 0, SEEK_END);
    bufSz = ftell(fd);
    fseek(fd, 0, SEEK_SET);

    buf = malloc(bufSz);
    fread(buf, 1, bufSz, fd);
    fclose(fd);
  
    int i = 0;
    while (secName = sections_by_index_get_name(buf, i)) {
        sections_by_name_set_writable(buf, secName);
    }
    fd = fopen("a.exe", "w+b");
    fwrite(buf, 1, bufSz, fd);
    return 0;
}