bspatch.h File Reference

#include <stdint.h>
#include <stdio.h>

Include dependency graph for bspatch.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	MBSPatchHeader_
struct	MBSPatchTriple_

Typedefs
typedef struct MBSPatchHeader_	MBSPatchHeader
typedef struct MBSPatchTriple_	MBSPatchTriple

Functions
int	MBS_ReadHeader (FILE *file, MBSPatchHeader *header)
	Read the header of a patch file into the MBSPatchHeader structure. More...
int	MBS_ApplyPatch (const MBSPatchHeader *header, FILE *patchFile, unsigned char *fbuffer, FILE *file)
	Apply a patch. More...

Typedef Documentation

MBSPatchHeader

typedef struct MBSPatchHeader_ MBSPatchHeader

MBSPatchTriple

typedef struct MBSPatchTriple_ MBSPatchTriple

Function Documentation

MBS_ApplyPatch()

int MBS_ApplyPatch	(	const MBSPatchHeader *	header,
		FILE *	patchFile,
		unsigned char *	fbuffer,
		FILE *	file
	)

Apply a patch.

This method does not validate the checksum of the original file: client code should validate the checksum before calling this method.

Parameters

patchfd	Must have been processed by MBS_ReadHeader
fbuffer	The original file read into a memory buffer of length header->slen.
filefd	Must have been opened for writing. Should be truncated to header->dlen if it is an existing file. The offset should be at the beginning of the file.

Definition at line 91 of file bspatch.cxx.

References BSPATCH_MEM_ERROR, count, end, header, i, ntohl(), OK, READ_ERROR, SSIZE_MAX, UNEXPECTED_BSPATCH_ERROR, WRITE_ERROR_PATCH_FILE, MBSPatchTriple_::x, MBSPatchTriple_::y, and MBSPatchTriple_::z.

Referenced by PatchFile::Execute().

MBS_ReadHeader()

int MBS_ReadHeader	(	FILE *	file,
		MBSPatchHeader *	header
	)

Read the header of a patch file into the MBSPatchHeader structure.

Parameters

fd	Must have been opened for reading, and be at the beginning of the file.

Definition at line 60 of file bspatch.cxx.

References header, ntohl(), OK, READ_ERROR, and UNEXPECTED_BSPATCH_ERROR.

Referenced by PatchFile::Execute().