151 lines
3.2 KiB
C
151 lines
3.2 KiB
C
#ifndef __EVIL_SYS_MMAN_H__
|
|
#define __EVIL_SYS_MMAN_H__
|
|
|
|
#include <evil_macro.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
/**
|
|
* @def PROT_NONE
|
|
* Data can not be accessed.
|
|
*/
|
|
|
|
/**
|
|
* @def PROT_READ
|
|
* Data can be read.
|
|
*/
|
|
|
|
/**
|
|
* @def PROT_WRITE
|
|
* Data can be written.
|
|
*/
|
|
|
|
/**
|
|
* @def PROT_EXEC
|
|
* Data can be executed.
|
|
*/
|
|
|
|
#define PROT_NONE 0x00
|
|
#define PROT_READ 0x01
|
|
#define PROT_WRITE 0x02
|
|
#define PROT_EXEC 0x04
|
|
|
|
/**
|
|
* @def MAP_SHARED
|
|
* Changes are shared.
|
|
*/
|
|
|
|
/**
|
|
* @def MAP_PRIVATE
|
|
* Changes are private.
|
|
*/
|
|
|
|
/**
|
|
* @def MAP_FIXED
|
|
* Interpret the address (addr) exactly.
|
|
*/
|
|
|
|
/**
|
|
* @def MAP_FAILED
|
|
* Error return from mmap().
|
|
*/
|
|
|
|
#define MAP_SHARED 0x0001
|
|
#define MAP_PRIVATE 0x0002
|
|
#define MAP_FIXED 0x0010
|
|
|
|
#define MAP_FAILED ((void *)-1)
|
|
|
|
|
|
/**
|
|
* @file mman.h
|
|
* @brief The file that provides the memory map functions
|
|
* @defgroup Evil_Mman Functions that manage memory mappping.
|
|
* @ingroup Evil
|
|
*
|
|
* This header provides the meomry map functions mmap and munmap.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* Creates or opens a named or unnamed file mapping object for a
|
|
* specified file and maps a view of a file mapping into the
|
|
* address space of a calling process.
|
|
*
|
|
* @param addr Unused
|
|
* @param len Number of bytes to be mapped.
|
|
* @param prot Protections.
|
|
* @param flags Type of the mapped object.
|
|
* @param fd File descriptor that describes the object to map.
|
|
* @param offset Number of bytes from which to start the mapping.
|
|
* @return The starting address of the mapped view on success, -1 otherwise.
|
|
*
|
|
* Create or open an unnamed file mapping object for a specified
|
|
* file described by the file descriptor @p fd. The number of
|
|
* bytes that are mapped is given by @p len and start after
|
|
* @p offset bytes. The parameter @p addr is unused.
|
|
*
|
|
* The only type of the mapped object that is supported is
|
|
* @c MAP_SHARED. If another value if given, -1 is returned.
|
|
*
|
|
* @p prot specifies the protection of the mapped region. If
|
|
* PROT_EXEC is used, it set the execute access. If PROT_READ
|
|
* is used, it sets the read access. If PROT_WRITE is used, it
|
|
* sets the write access.
|
|
*
|
|
* If the map view of file can not be created, -1 is returned.
|
|
* If the mappping can not be done, -1 is returned.
|
|
*
|
|
* If no error occured, the starting address of the mapped view
|
|
* is returned.
|
|
*
|
|
* Conformity: None.
|
|
*
|
|
* Supported OS: Windows Vista, Windows XP or Windows 2000
|
|
* Professional.
|
|
*
|
|
* @ingroup Evil_Mman
|
|
*/
|
|
EAPI void *mmap(void *addr,
|
|
size_t len,
|
|
int prot,
|
|
int flags,
|
|
int fd,
|
|
off_t offset);
|
|
|
|
/**
|
|
* Unmaps a mapped view of a file from the calling process's
|
|
* address space.
|
|
*
|
|
* @param addr Pointer to the base address.
|
|
* @param len Unused.
|
|
* @return 0 on success, -1 otherwise.
|
|
*
|
|
* Unmaps a mapped view of a file from the calling process's
|
|
* address space. @p addr is the pointer to the base address.
|
|
* This value must be identical to the value returned by a
|
|
* previous call to mmap(). The parameter @p len is unsed.
|
|
*
|
|
* Conformity: None.
|
|
*
|
|
* Supported OS: Windows Vista, Windows XP or Windows 2000
|
|
* Professional.
|
|
*
|
|
* @ingroup Evil_Mman
|
|
*/
|
|
EAPI int munmap(void *addr,
|
|
size_t len);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* __EVIL_SYS_MMAN_H__ */
|
|
|