C++ (Cpp) write_ar_headerの例

コード例 #1

ファイル: ar.c プロジェクト: staalmannen/busybox-w32

static int write_ar_archive(archive_handle_t *handle)
{
    struct stat st;
    archive_handle_t *out_handle;
    char *temp_fn = NULL;

    xfstat(handle->src_fd, &st, handle->ar__name);

    /* if archive exists, create a new handle for output.
     * we create it in place of the old one.
     */
    if (st.st_size != 0) {
        out_handle = init_handle();
#if !ENABLE_PLATFORM_MINGW32
        xunlink(handle->ar__name);
        out_handle->src_fd = xopen(handle->ar__name, O_WRONLY | O_CREAT | O_TRUNC);
#else
        /* can't unlink open file, create temporary output file */
        temp_fn = xasprintf("%sXXXXXX", handle->ar__name);
        out_handle->src_fd = xmkstemp(temp_fn);
#endif
        out_handle->accept = handle->accept;
    } else {
        out_handle = handle;
    }

    handle->ar__out = out_handle;

    xwrite(out_handle->src_fd, AR_MAGIC "\n", AR_MAGIC_LEN + 1);
    out_handle->offset += AR_MAGIC_LEN + 1;

    /* skip to the end of the archive if we have to append stuff */
    if (st.st_size != 0) {
        handle->filter = filter_replaceable;
        handle->action_data = copy_data;
        unpack_ar_archive(handle);
    }

    while (write_ar_header(out_handle) == 0)
        continue;

    /* optional, since we exit right after we return */
    if (ENABLE_FEATURE_CLEAN_UP || ENABLE_PLATFORM_MINGW32) {
        close(handle->src_fd);
        if (out_handle->src_fd != handle->src_fd)
            close(out_handle->src_fd);
    }

#if ENABLE_PLATFORM_MINGW32
    if ( temp_fn != NULL ) {
        xrename(temp_fn, handle->ar__name);
        free(temp_fn);
    }
#endif

    return EXIT_SUCCESS;
}

コード例 #2

ファイル: ar.c プロジェクト: Ayyayay/busybox

static int write_ar_archive(archive_handle_t *handle)
{
	struct stat st;
	archive_handle_t *out_handle;

	if (fstat(handle->src_fd, &st) == -1)
		bb_simple_perror_msg_and_die(handle->ar__name);

	/* if archive exists, create a new handle for output.
	 * we create it in place of the old one.
	 */
	if (st.st_size != 0) {
		out_handle = init_handle();
		xunlink(handle->ar__name);
		out_handle->src_fd = xopen(handle->ar__name, O_WRONLY | O_CREAT | O_TRUNC);
		out_handle->accept = handle->accept;
	} else {
		out_handle = handle;
	}

	handle->ar__out = out_handle;

	xwrite(out_handle->src_fd, AR_MAGIC "\n", AR_MAGIC_LEN + 1);
	out_handle->offset += AR_MAGIC_LEN + 1;

	/* skip to the end of the archive if we have to append stuff */
	if (st.st_size != 0) {
		handle->filter = filter_replaceable;
		handle->action_data = copy_data;
		unpack_ar_archive(handle);
	}

	while (write_ar_header(out_handle) == 0)
		continue;

	/* optional, since we exit right after we return */
	if (ENABLE_FEATURE_CLEAN_UP) {
		close(handle->src_fd);
		if (out_handle->src_fd != handle->src_fd)
			close(out_handle->src_fd);
	}

	return EXIT_SUCCESS;
}