git: 40d340acb931 - main - stand: Implement ofw disk print routine

The branch main has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=40d340acb9316db5771fe777e279776b903336d4

commit 40d340acb9316db5771fe777e279776b903336d4
Author:     Warner Losh <imp@FreeBSD.org>
AuthorDate: 2022-11-30 22:09:56 +0000
Commit:     Warner Losh <imp@FreeBSD.org>
CommitDate: 2022-11-30 22:30:33 +0000

    stand: Implement ofw disk print routine
    
    Have lsdev show openfirmware devices.
    
    Sponsored by:           Netflix
    Differential Revision:  https://reviews.freebsd.org/D37555
---
 stand/libofw/ofw_disk.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/stand/libofw/ofw_disk.c b/stand/libofw/ofw_disk.c
index 8f4c0162d32b..67da8cbeb310 100644
--- a/stand/libofw/ofw_disk.c
+++ b/stand/libofw/ofw_disk.c
@@ -184,6 +184,30 @@ ofwd_ioctl(struct open_file *f, u_long cmd, void *data)
 static int
 ofwd_print(int verbose __unused)
 {
+	uintmax_t block_size, n;
+	int ret;
+	char line[80];
+
+	/*
+	 * We don't have a list of devices since we don't parse the whole OFW
+	 * tree to find them. Instead, if we have an open device print info
+	 * about it. Otherwise say we can't. Makes lsdev nicer.
+	 */
+	if ((ret = pager_output("block devices:\n")) != 0)
+		return (ret);
+	if (kdp != NULL) {
+		block_size = OF_block_size(kdp->d_handle);
+		n = OF_blocks(kdp->d_handle);
+		snprintf(line, sizeof(line),
+		    "    %s:   OFW block device (%ju X %ju): %ju bytes\n",
+		    kdp->d_path, n, block_size, n * block_size);
+		if ((ret = pager_output(line)) != 0)
+			return (ret);
+	} else {
+		if ((ret = pager_output("  none are open, so no info\n")) != 0)
+			return (ret);
+	}
+
 	return (0);
 }
 static char *