add and document seteotmodel and geteotmodel commands

2 files changed, 45 insertions, 1 deletions

diff --git a/usr.bin/mt/mt.1 b/usr.bin/mt/mt.1
index 6500ad5..9a526b3 100644
--- a/usr.bin/mt/mt.1
+++ b/usr.bin/mt/mt.1
@@ -145,6 +145,22 @@ shown in the table, and the first matching entry will be used.  If the
 given string and the resulting canonical density name do not match
 exactly, an informational message is printed about what the given
 string has been taken for.
+.It Cm geteotmodel
+Fetch and print out the current EOT filemark model. The model states how
+many filemarks will be written at close if a tape was being written.
+.It Cm seteotmodel
+Set (from the
+.Ar count
+argument)
+and print out the current and EOT filemark model. Typically this will be
+.Ar 2
+filemarks, but some devices (typically QIC cartridge drives) can
+only write
+.Ar 1
+filemark. Currently you can only choose a value of
+.Ar 1
+or
+.Ar 2 .
 .It Cm eom
 Forward space to end of recorded medium
 (Count is ignored).
diff --git a/usr.bin/mt/mt.c b/usr.bin/mt/mt.c
index 9c87191..ff2a2d6 100644
--- a/usr.bin/mt/mt.c
+++ b/usr.bin/mt/mt.c
@@ -42,7 +42,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)mt.c	8.2 (Berkeley) 5/4/95";
 #endif
 static const char rcsid[] =
-	"$Id: mt.c,v 1.23 1999/03/10 00:48:03 mjacob Exp $";
+	"$Id: mt.c,v 1.24 1999/03/10 18:42:20 mjacob Exp $";
 #endif /* not lint */
 
 /*
@@ -123,6 +123,10 @@ struct commands {
 	{ "sethpos",    MTIOCHLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
 	{ "setspos",    MTIOCSLOCATE, 0, NEED_2ARGS|ZERO_ALLOWED },
 	{ "errstat",	MTIOCERRSTAT, 0 },
+	{ "setmodel",	MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
+	{ "seteotmodel",	MTIOCSETEOTMODEL, 0, NEED_2ARGS|ZERO_ALLOWED },
+	{ "getmodel",	MTIOCGETEOTMODEL },
+	{ "geteotmodel",	MTIOCGETEOTMODEL },
 #endif /* defined(__FreeBSD__) */
 	{ NULL }
 };
@@ -289,6 +293,30 @@ main(argc, argv)
 			exit(0);
 			/* NOTREACHED */
 		}
+		case MTIOCGETEOTMODEL:
+		{
+			u_int32_t om;
+			if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
+				err(2, "%s", tape);
+			(void)printf("%s: the model is %u filemar%s at EOT\n",
+			    tape, om, (om > 1)? "ks" : "k");
+			exit(0);
+			/* NOTREACHED */
+		}
+		case MTIOCSETEOTMODEL:
+		{
+			u_int32_t om, nm = (u_int32_t)mt_com.mt_count;
+			if (ioctl(mtfd, MTIOCGETEOTMODEL, (caddr_t)&om) < 0)
+				err(2, "%s", tape);
+			if (ioctl(mtfd, comp->c_code, (caddr_t)&nm) < 0)
+				err(2, "%s", tape);
+			(void)printf("%s: old model was %u filemar%s at EOT\n",
+			    tape, om, (om > 1)? "ks" : "k");
+			(void)printf("%s: new model  is %u filemar%s at EOT\n",
+			    tape, nm, (nm > 1)? "ks" : "k");
+			exit(0);
+			/* NOTREACHED */
+		}
 		default:
 			break;
 		}