C++ (Cpp) stream_open_zip Examples

Example #1

File: stream.cpp Project: bradhugh/mame

imgtool_stream *stream_open(const char *fname, int read_or_write)
{
	static const UINT32 write_modes[] =
	{
		OPEN_FLAG_READ,
		OPEN_FLAG_WRITE | OPEN_FLAG_CREATE,
		OPEN_FLAG_READ | OPEN_FLAG_WRITE,
		OPEN_FLAG_READ | OPEN_FLAG_WRITE | OPEN_FLAG_CREATE
	};
	imgtool_stream *s = nullptr;
	char c;

	/* maybe we are just a ZIP? */
	const char *ext = strrchr(fname, '.');
	if (ext && !core_stricmp(ext, ".zip"))
		return stream_open_zip(fname, nullptr, read_or_write);

	util::core_file::ptr f = nullptr;
	auto const filerr = util::core_file::open(fname, write_modes[read_or_write], f);
	if (filerr != osd_file::error::NONE)
	{
		if (!read_or_write)
		{
			int const len = strlen(fname);

			/* can't open the file; try opening ZIP files with other names */
			std::vector<char> buf(len + 1);
			strcpy(&buf[0], fname);

			for (int i = len-1; !s && (i >= 0); i--)
			{
				if ((buf[i] == '\\') || (buf[i] == '/'))
				{
					c = buf[i];
					buf[i] = '\0';
					s = stream_open_zip(&buf[0], &buf[i + 1], read_or_write);
					buf[i] = c;
				}
			}

			if (s)
				return s;
		}

		/* ah well, it was worth a shot */
		return nullptr;
	}

	imgtool_stream::ptr imgfile(new imgtool_stream(read_or_write ? false : true, std::move(f)));

	/* Normal file */
	imgfile->name = fname;
	return imgfile.release();
}

Example #2

File: stream.c Project: cdenix/psmame

imgtool_stream *stream_open(const char *fname, int read_or_write)
{
    file_error filerr;
    const char *ext;
    imgtool_stream *imgfile = NULL;
    static const UINT32 write_modes[] =
    {
        OPEN_FLAG_READ,
        OPEN_FLAG_WRITE | OPEN_FLAG_CREATE,
        OPEN_FLAG_READ | OPEN_FLAG_WRITE,
        OPEN_FLAG_READ | OPEN_FLAG_WRITE | OPEN_FLAG_CREATE
    };
    core_file *f = NULL;
    char *buf = NULL;
    int len, i;
    imgtool_stream *s = NULL;
    char c;

    /* maybe we are just a ZIP? */
    ext = strrchr(fname, '.');
    if (ext && !mame_stricmp(ext, ".zip"))
        return stream_open_zip(fname, NULL, read_or_write);

    filerr = core_fopen(fname, write_modes[read_or_write], &f);
    if (filerr != FILERR_NONE)
    {
        if (!read_or_write)
        {
            len = strlen(fname);

            /* can't open the file; try opening ZIP files with other names */
            buf = (char*)malloc(len + 1);
            if (!buf)
                goto error;
            strcpy(buf, fname);

            for(i = len-1; !s && (i >= 0); i--)
            {
                if ((buf[i] == '\\') || (buf[i] == '/'))
                {
                    c = buf[i];
                    buf[i] = '\0';
                    s = stream_open_zip(buf, buf + i + 1, read_or_write);
                    buf[i] = c;
                }
            }
            free(buf);
            buf = NULL;

            if (s)
                return s;
        }

        /* ah well, it was worth a shot */
        goto error;
    }

    imgfile = (imgtool_stream *)malloc(sizeof(struct _imgtool_stream));
    if (!imgfile)
        goto error;

    /* Normal file */
    memset(imgfile, 0, sizeof(*imgfile));
    imgfile->imgtype = IMG_FILE;
    imgfile->position = 0;
    imgfile->filesize = core_fsize(f);
    imgfile->write_protect = read_or_write ? 0 : 1;
    imgfile->u.file = f;
    imgfile->name = fname;
    return imgfile;

error:
    if (imgfile != NULL)
        free((void *) imgfile);
    if (f != NULL)
        core_fclose(f);
    if (buf)
        free(buf);
    return (imgtool_stream *) NULL;
}