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/*
** mwlib.h - POSIX 1003.2 "ar" command
**
** $Id$
**
** This isn't a pure POSIX 1003.2 ar; it only manipulates Metrowerks
** Library files, not general-purpose POSIX 1003.2 format archives.
**
** Dec. 14, 1997 Chris Herborth (chrish@qnx.com)
**
** This code is donated to the PUBLIC DOMAIN. You can use, abuse, modify,
** redistribute, steal, or otherwise manipulate this code. No restrictions
** at all. If you laugh at this code, you can't use it.
**
** This "ar" was implemented using IEEE Std 1003.2-1992 as the basis for
** the interface, and Metrowerk's published docs detailing their library
** format. Look inside for clues about how reality differs from MW's
** documentation on BeOS...
*/
#include <support/SupportDefs.h>
#include <time.h>
/* ----------------------------------------------------------------------
** Constants
**
*/
#define MWLIB_MAGIC_WORD 'MWOB'
#define MWLIB_MAGIC_PROC 'PPC '
/* ----------------------------------------------------------------------
** Structures
**
** This is based on the "Metrowerks CodeWarrior Library Reference
** Specification", which isn't 100% accurate for BeOS.
*/
typedef struct MWLibHeader {
uint32 magicword;
uint32 magicproc;
uint32 magicflags;
uint32 version;
uint32 code_size;
uint32 data_size;
uint32 num_objects;
} MWLibHeader;
typedef struct MWLibFile {
time_t m_time;
uint32 off_filename;
uint32 off_fullpath;
uint32 off_object;
uint32 object_size;
} MWLibFile;
typedef struct MWLib {
MWLibHeader header;
MWLibFile *files;
char **names;
char **data;
} MWLib;
/* This bears no resemblance to what's in the Metrowerks docs.
**
** Note that this is incomplete; this is all the info I needed for
** ar though.
*/
typedef struct MWObject {
uint32 magic_word; /* 'MWOB' */
uint32 arch; /* 'PPC '; this isn't in the docs */
uint32 version;
uint32 flags;
uint32 code_size;
uint32 data_size;
} MWObject;
/* ----------------------------------------------------------------------
** Function prototypes
**
** load_MW_lib() - load a Metrowerks library
**
** Returns:
** B_OK - all is well
** B_FILE_NOT_FOUND - can't open the given file
** B_IO_ERROR - can't read from the given file
** B_BAD_VALUE - invalid magic word in the file
** B_MISMATCHED_VALUES - invalid processor value (ie, not a PowerPC lib),
** or the magicflags member is not 0, or the file
** version number isn't 1.
** B_NO_MEMORY - unable to allocate memory while loading the lib
**
** write_MW_lib() - write a Metrowerks library
**
** Returns:
** B_OK - all is well
**
** write_MW_lib() - write a Metrowerks library file
**
** Returns:
** B_OK - all is well; doesn't necessarily mean the file was written
** properly, just that you didn't lose any data
** B_NO_MEMORY - unable to allocate offset buffers
** B_ERROR - problem with backup file (can't rename existing file)
**
** Note:
** If you use this in a long-lived program, it leaks memory; the MWLib
** contents are never free()'d.
*/
status_t load_MW_lib( MWLib *lib, const char *filename );
status_t write_MW_lib( MWLib *lib, const char *filename );
void setfiletype( const char *filename, const char *type );
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