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#include <sys/types.h>
#include <stdio.h>
typedef struct { int fh; unsigned char *addr; size_t size; } *MAP;
/* Mapps a file into memory
returns pointer to the mapping struct,
containing the file's size, the mapped
address and its file handle.
If readonly is true, the file will be
opened and mapped read only. File is
opened and mapped writable, if false.
Returns NULL if memory could not be
allocated, file could not be opened or
mapped. Gives out an diagnostic message
on stderr
*/
MAP map_file( char *filename, int readonly );
/* Unmapps a file from memory. NULL pointer
checks are being done, so this is safe
to be called from cleanup without knowing
whether there actually is a map.
*/
void unmap_file ( MAP *pMap );
/* Gets file size of open file
returns != 0 in case of error */
inline int getfilesize( int fd, unsigned long *size );
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