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mmap_readat(3)		    Library Functions Manual		  mmap_readat(3)

NAME
     mmap_readat - memory map a file for reading

SYNTAX
     #include <libowfat/mmap.h>

     const char* mmap_readat(const char* filename,size_t* filesize,int dirfd);

DESCRIPTION
     mmap_readat  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.

     If  filename  is  a relative path and dirfd is not AT_FDCWD (defined in fc-
     ntl.h), filename is interpreted relative to dirfd, which must  be	an  open
     directory.

     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.

SEE ALSO
     mmap_unmap(3), mmap_private(3), mmap_read(3), mmap_shared(3)

								  mmap_readat(3)

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