static rc_t prepare_decompress( const compress_context * ctx,
KDirectory *dir, const KFile **src, KFile **dst )
{
const KFile *temp = NULL;
rc_t rc = KDirectoryCreateFile ( dir, dst, false, 0664, kcmInit, ctx->dst_file );
DISP_RC( rc, "KDirectoryCreateFile() failed" );
if ( rc != 0 ) return rc;
rc = KDirectoryOpenFileRead ( dir, &temp, ctx->src_file );
DISP_RC( rc, "KDirectoryOpenFileRead() failed" );
if ( rc == 0 )
switch( ctx->method )
{
case KC_GZIP : rc = KFileMakeGzipForRead ( src, temp );
DISP_RC( rc, "KFileMakeGzipForRead() failed" );
break;
case KC_BZIP : rc = KFileMakeBzip2ForRead ( src, temp );
DISP_RC( rc, "KFileMakeBzip2ForRead() failed" );
break;
case KC_SZIP : /* rc = KFileMakeSzipForRead ( src, temp ); */
rc = RC( rcExe, rcFile, rcPacking, rcFormat, rcUnknown );
DISP_RC( rc, "KFileMakeSzip2ForRead() failed" );
break;
}
KFileRelease ( temp );
return rc;
}
static
rc_t KLoaderFile_Open(KLoaderFile* self)
{
rc_t rc = 0;
DBG(("%s opening %s\n", __func__, self->realname));
if( (rc = KDirectoryOpenFileRead(self->dir, &self->kfile, "%s", self->realname)) == 0 ) {
if( self->has_md5 ) {
const KFile *md5File = NULL;
DBG(("%s opening as md5 wrapped %s\n", __func__, self->realname));
if( (rc = KFileMakeMD5Read(&md5File, self->file, self->md5_digest)) == 0) {
self->file = md5File;
}
}
if( rc == 0 ) {
const KFile *z = NULL;
switch(self->compress_type) {
case compress_none:
break;
case compress_gzip:
DBG(("%s opening as gzip wrapped %s\n", __func__, self->realname));
if( (rc = KFileMakeGzipForRead(&z, self->file)) == 0 ) {
KFileRelease(self->file);
self->file = z;
}
break;
case compress_bzip2:
DBG(("%s opening as bzip2 wrapped %s\n", __func__, self->realname));
if( (rc = KFileMakeBzip2ForRead(&z, self->file)) == 0 ) {
KFileRelease(self->file);
self->file = z;
}
break;
default:
rc = RC(rcApp, rcFile, rcOpening, rcType, rcUnexpected);
break;
}
#if ! WINDOWS
if( rc == 0 && self->ahead ) {
const KFile *z = NULL;
if( (rc = KQueueFileMakeRead(&z, self->pos, self->file,
self->buffer_size * 10, self->buffer_size, 0)) == 0 ) {
KFileRelease(self->file);
self->file = z;
}
}
#endif
}
}
if( rc != 0 ) {
PLOGERR(klogErr, (klogErr, rc, "opening $(file)", PLOG_S(file), self->filename));
KFileRelease(self->file);
}
return rc;
}