ICFS/sources/main.c

#include <stdlib.h>
#define FUSE_USE_VERSION 31

#include "sourcefs.h"
#include <fuse3/fuse.h>

const char *mountpoint;

/*
 * #In this function we need to:
 *
 * * Open the folder we are mounting over (and remember it).
 * * Initialize the process table.
 */
static void *icfs_init(struct fuse_conn_info *conn, struct fuse_config *cfg) {
  (void)conn; /* Explicit way to tell we ignore these arguments. */
  (void)cfg;  /* This also silences the compiler warnings. */

  source_init(mountpoint);
  return NULL;
}

static int icfs_getattr(const char *path, struct stat *stbuf,
                        struct fuse_file_info *fi) {

  int statret = source_stat(path, stbuf);

  return statret;
}

static const struct fuse_operations icfs_oper = {
    .init = icfs_init,
    .getattr = icfs_getattr,
};

int main(int argc, char *argv[]) {

  int ret;

  // FUSE won't tell us the mountpoint on it's own, so we need to extract it
  // ourselves.
  mountpoint = realpath(argv[argc - 2], NULL);

  ret = fuse_main(argc, argv, &icfs_oper, NULL);

  return ret;
}