ffmount.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <sys/mount.h>

extern char * ffmount(char *path)
{
  int rc;
  char *mountpoint;

  mountpoint = mkdtemp(path);
  if (!mountpoint) {
    return NULL;
  }

  rc = mount("tmpfs", mountpoint, "tmpfs", 0, "");

  if (rc != 0) {
    rmdir(mountpoint);
    return NULL;
  }

  return strdup(mountpoint);
}