Add support to makefs(8) to add UFS labels to images.

Submitted by:	avg
MFC after:	3 days

usr.sbin/makefs/ffs.c

@@ -236,6 +236,9 @@ ffs_parse_opts(const char *option, fsinfo_t *fsopts)
 			goto leave_ffs_parse_opts;
 		}
 		rv = 1;
+	} else if (strcmp(var, "label") == 0) {
+		strlcpy(ffs_opts->label, val, sizeof(ffs_opts->label));
+		rv = 1;
 	} else
 		rv = set_option(ffs_options, var, val);
 

usr.sbin/makefs/ffs.h

@@ -40,7 +40,11 @@
 #ifndef _FFS_H
 #define _FFS_H
 
+#include <ufs/ufs/dinode.h>
+#include <ufs/ffs/fs.h>
+
 typedef struct {
+	char	label[MAXVOLLEN];	/* volume name/label */
 	int	bsize;		/* block size */
 	int	fsize;		/* fragment size */
 	int	cpg;		/* cylinders per group */

usr.sbin/makefs/ffs/mkfs.c

@@ -139,7 +139,9 @@ ffs_mkfs(const char *fsys, const fsinfo_t *fsopts)
 	avgfpdir =      ffs_opts->avgfpdir;
 	bbsize =        BBSIZE;
 	sbsize =        SBLOCKSIZE;
-	
+
+	strlcpy(sblock.fs_volname, ffs_opts->label, sizeof(sblock.fs_volname));
+
 	if (Oflag == 0) {
 		sblock.fs_old_inodefmt = FS_42INODEFMT;
 		sblock.fs_maxsymlinklen = 0;

usr.sbin/makefs/makefs.8

@@ -242,6 +242,8 @@ Block size.
 Bytes per inode.
 .It Sy fsize
 Fragment size.
+.It Sy label
+Label name of the image.
 .It Sy maxbpg
 Maximum blocks per file in a cylinder group.
 .It Sy minfree