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