mmap_read - memory map a file for reading

       mmap_read opens filename for reading, maps the whole file into memory, closes the file, writes the length
       of the file to filesize and returns a pointer to the mapped file.

       The file is unmapped by the operating system if the process terminates.  It can also be manually unmapped
       by calling munmap from <sys/mman.h>.

       If the file could not be opened or mapped, (void*)0 is returned.

       mmap_read - memory map a file for reading

mmap_unmap(3)

                                                                                                    mmap_read(3)

#include<libowfat/mmap.h>

       const char* mmap_read(const char* filename,size_t* filesize);