ICFS/sources/sourcefs.c

#define _GNU_SOURCE

#include "sourcefs.h"
#include <dirent.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/stat.h>

static struct source_files_handle {
  int root_fd;
} handle;

void source_fname_translate(const char *filename) {}

int source_init(const char *root_path) {
  int root_fd = open(root_path, O_PATH);

  if (root_fd == -1) {
    return -1;
  }

  handle.root_fd = root_fd;

  return 0;
}

// Currently this literally is a fstatat wrapper.
int source_stat(const char *restrict pathname, struct stat *restrict statbuf) {
  int statret = fstatat(handle.root_fd, pathname, statbuf, 0);
  return statret;
}

DIR *source_opendir(const char *filename) {
  int fd = openat(handle.root_fd, filename, NULL);
  DIR *dir_pointer = fdopendir(fd);
  return dir_pointer;
}

// Just regular readdir in disguise.
struct dirent *source_readdir(DIR *dirp) { return readdir(dirp); }